diff options
Diffstat (limited to 'arch/powerpc')
227 files changed, 6147 insertions, 3069 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 352f416..4ce0be3 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -215,7 +215,8 @@ config ARCH_HIBERNATION_POSSIBLE config ARCH_SUSPEND_POSSIBLE def_bool y depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ - (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x + (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ + || 44x || 40x config PPC_DCR_NATIVE bool @@ -239,6 +240,9 @@ config PPC_OF_PLATFORM_PCI config ARCH_SUPPORTS_DEBUG_PAGEALLOC def_bool y +config ARCH_SUPPORTS_UPROBES + def_bool y + config PPC_ADV_DEBUG_REGS bool depends on 40x || BOOKE @@ -325,7 +329,8 @@ config SWIOTLB config HOTPLUG_CPU bool "Support for enabling/disabling CPUs" - depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV) + depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || \ + PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC)) ---help--- Say Y here to be able to disable and re-enable individual CPUs at runtime on SMP machines. @@ -557,6 +562,14 @@ config SCHED_SMT when dealing with POWER5 cpus at a cost of slightly increased overhead in some places. If unsure say N here. +config PPC_DENORMALISATION + bool "PowerPC denormalisation exception handling" + depends on PPC_BOOK3S_64 + default "n" + ---help--- + Add support for handling denormalisation of single precision + values. Useful for bare metal only. If unsure say Y here. + config CMDLINE_BOOL bool "Default bootloader kernel arguments" diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index b7d8333..6a15c96 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -107,6 +107,7 @@ src-boot := $(addprefix $(obj)/, $(src-boot)) obj-boot := $(addsuffix .o, $(basename $(src-boot))) obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib)))) obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat)))) +obj-plat: $(libfdt) quiet_cmd_copy_zlib = COPY $@ cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ diff --git a/arch/powerpc/boot/dts/fsl/e500mc_power_isa.dtsi b/arch/powerpc/boot/dts/fsl/e500mc_power_isa.dtsi new file mode 100644 index 0000000..870c653 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/e500mc_power_isa.dtsi @@ -0,0 +1,58 @@ +/* + * e500mc Power ISA Device Tree Source (include) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/ { + cpus { + power-isa-version = "2.06"; + power-isa-b; // Base + power-isa-e; // Embedded + power-isa-atb; // Alternate Time Base + power-isa-cs; // Cache Specification + power-isa-ds; // Decorated Storage + power-isa-e.ed; // Embedded.Enhanced Debug + power-isa-e.pd; // Embedded.External PID + power-isa-e.hv; // Embedded.Hypervisor + power-isa-e.le; // Embedded.Little-Endian + power-isa-e.pm; // Embedded.Performance Monitor + power-isa-e.pc; // Embedded.Processor Control + power-isa-ecl; // Embedded Cache Locking + power-isa-exp; // External Proxy + power-isa-fp; // Floating Point + power-isa-fp.r; // Floating Point.Record + power-isa-mmc; // Memory Coherence + power-isa-scpm; // Store Conditional Page Mobility + power-isa-wt; // Wait + mmu-type = "power-embedded"; + }; +}; diff --git a/arch/powerpc/boot/dts/fsl/e500v2_power_isa.dtsi b/arch/powerpc/boot/dts/fsl/e500v2_power_isa.dtsi new file mode 100644 index 0000000..f492814 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/e500v2_power_isa.dtsi @@ -0,0 +1,52 @@ +/* + * e500v2 Power ISA Device Tree Source (include) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/ { + cpus { + power-isa-version = "2.03"; + power-isa-b; // Base + power-isa-e; // Embedded + power-isa-atb; // Alternate Time Base + power-isa-cs; // Cache Specification + power-isa-e.le; // Embedded.Little-Endian + power-isa-e.pm; // Embedded.Performance Monitor + power-isa-ecl; // Embedded Cache Locking + power-isa-mmc; // Memory Coherence + power-isa-sp; // Signal Processing Engine + power-isa-sp.fd; // SPE.Embedded Float Scalar Double + power-isa-sp.fs; // SPE.Embedded Float Scalar Single + power-isa-sp.fv; // SPE.Embedded Float Vector + mmu-type = "power-embedded"; + }; +}; diff --git a/arch/powerpc/boot/dts/fsl/e5500_power_isa.dtsi b/arch/powerpc/boot/dts/fsl/e5500_power_isa.dtsi new file mode 100644 index 0000000..3230212 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/e5500_power_isa.dtsi @@ -0,0 +1,59 @@ +/* + * e5500 Power ISA Device Tree Source (include) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/ { + cpus { + power-isa-version = "2.06"; + power-isa-b; // Base + power-isa-e; // Embedded + power-isa-atb; // Alternate Time Base + power-isa-cs; // Cache Specification + power-isa-ds; // Decorated Storage + power-isa-e.ed; // Embedded.Enhanced Debug + power-isa-e.pd; // Embedded.External PID + power-isa-e.hv; // Embedded.Hypervisor + power-isa-e.le; // Embedded.Little-Endian + power-isa-e.pm; // Embedded.Performance Monitor + power-isa-e.pc; // Embedded.Processor Control + power-isa-ecl; // Embedded Cache Locking + power-isa-exp; // External Proxy + power-isa-fp; // Floating Point + power-isa-fp.r; // Floating Point.Record + power-isa-mmc; // Memory Coherence + power-isa-scpm; // Store Conditional Page Mobility + power-isa-wt; // Wait + power-isa-64; // 64-bit + mmu-type = "power-embedded"; + }; +}; diff --git a/arch/powerpc/boot/dts/fsl/mpc8536si-pre.dtsi b/arch/powerpc/boot/dts/fsl/mpc8536si-pre.dtsi index 7de45a7..152906f 100644 --- a/arch/powerpc/boot/dts/fsl/mpc8536si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/mpc8536si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,MPC8536"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/mpc8544si-pre.dtsi b/arch/powerpc/boot/dts/fsl/mpc8544si-pre.dtsi index 8777f92..5a69baf 100644 --- a/arch/powerpc/boot/dts/fsl/mpc8544si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/mpc8544si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,MPC8544"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/mpc8548si-pre.dtsi b/arch/powerpc/boot/dts/fsl/mpc8548si-pre.dtsi index 720422d..fc1ce97 100644 --- a/arch/powerpc/boot/dts/fsl/mpc8548si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/mpc8548si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,MPC8548"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/mpc8568si-pre.dtsi b/arch/powerpc/boot/dts/fsl/mpc8568si-pre.dtsi index eacd62c..122ca3b 100644 --- a/arch/powerpc/boot/dts/fsl/mpc8568si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/mpc8568si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,MPC8568"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/mpc8569si-pre.dtsi b/arch/powerpc/boot/dts/fsl/mpc8569si-pre.dtsi index b07064d..2cd15a2 100644 --- a/arch/powerpc/boot/dts/fsl/mpc8569si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/mpc8569si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,MPC8569"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/mpc8572si-pre.dtsi b/arch/powerpc/boot/dts/fsl/mpc8572si-pre.dtsi index ca18832..28c2a86 100644 --- a/arch/powerpc/boot/dts/fsl/mpc8572si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/mpc8572si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,MPC8572"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p1010si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p1010si-pre.dtsi index 7354a8f..6e76f9b 100644 --- a/arch/powerpc/boot/dts/fsl/p1010si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p1010si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,P1010"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p1020si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p1020si-pre.dtsi index 6f0376e..fed9c4c 100644 --- a/arch/powerpc/boot/dts/fsl/p1020si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p1020si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,P1020"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p1021si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p1021si-pre.dtsi index 4abd54b..36161b5 100644 --- a/arch/powerpc/boot/dts/fsl/p1021si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p1021si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,P1021"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p1022si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p1022si-pre.dtsi index e930f4f..1956dea 100644 --- a/arch/powerpc/boot/dts/fsl/p1022si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p1022si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,P1022"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p1023si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p1023si-pre.dtsi index ac45f6d..132a152 100644 --- a/arch/powerpc/boot/dts/fsl/p1023si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p1023si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,P1023"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p2020si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p2020si-pre.dtsi index 3213288..42bf3c6 100644 --- a/arch/powerpc/boot/dts/fsl/p2020si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p2020si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500v2_power_isa.dtsi" + / { compatible = "fsl,P2020"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p2041si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p2041si-pre.dtsi index 2d0a40d..7a2697d 100644 --- a/arch/powerpc/boot/dts/fsl/p2041si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p2041si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500mc_power_isa.dtsi" + / { compatible = "fsl,P2041"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p3041si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p3041si-pre.dtsi index 136def3..c9ca2c3 100644 --- a/arch/powerpc/boot/dts/fsl/p3041si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p3041si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500mc_power_isa.dtsi" + / { compatible = "fsl,P3041"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p4080si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p4080si-pre.dtsi index b9556ee..493d9a0 100644 --- a/arch/powerpc/boot/dts/fsl/p4080si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p4080si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e500mc_power_isa.dtsi" + / { compatible = "fsl,P4080"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p5020si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p5020si-pre.dtsi index ae823a4..0a198b0 100644 --- a/arch/powerpc/boot/dts/fsl/p5020si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/p5020si-pre.dtsi @@ -33,6 +33,9 @@ */ /dts-v1/; + +/include/ "e5500_power_isa.dtsi" + / { compatible = "fsl,P5020"; #address-cells = <2>; diff --git a/arch/powerpc/boot/dts/fsl/p5040si-post.dtsi b/arch/powerpc/boot/dts/fsl/p5040si-post.dtsi new file mode 100644 index 0000000..db2c9a7 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/p5040si-post.dtsi @@ -0,0 +1,320 @@ +/* + * P5040 Silicon/SoC Device Tree Source (post include) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * This software is provided by Freescale Semiconductor "as is" and any + * express or implied warranties, including, but not limited to, the implied + * warranties of merchantability and fitness for a particular purpose are + * disclaimed. In no event shall Freescale Semiconductor be liable for any + * direct, indirect, incidental, special, exemplary, or consequential damages + * (including, but not limited to, procurement of substitute goods or services; + * loss of use, data, or profits; or business interruption) however caused and + * on any theory of liability, whether in contract, strict liability, or tort + * (including negligence or otherwise) arising in any way out of the use of this + * software, even if advised of the possibility of such damage. + */ + +&lbc { + compatible = "fsl,p5040-elbc", "fsl,elbc", "simple-bus"; + interrupts = <25 2 0 0>; + #address-cells = <2>; + #size-cells = <1>; +}; + +/* controller at 0x200000 */ +&pci0 { + compatible = "fsl,p5040-pcie", "fsl,qoriq-pcie-v2.4"; + device_type = "pci"; + #size-cells = <2>; + #address-cells = <3>; + bus-range = <0x0 0xff>; + clock-frequency = <33333333>; + interrupts = <16 2 1 15>; + pcie@0 { + reg = <0 0 0 0 0>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + device_type = "pci"; + interrupts = <16 2 1 15>; + interrupt-map-mask = <0xf800 0 0 7>; + interrupt-map = < + /* IDSEL 0x0 */ + 0000 0 0 1 &mpic 40 1 0 0 + 0000 0 0 2 &mpic 1 1 0 0 + 0000 0 0 3 &mpic 2 1 0 0 + 0000 0 0 4 &mpic 3 1 0 0 + >; + }; +}; + +/* controller at 0x201000 */ +&pci1 { + compatible = "fsl,p5040-pcie", "fsl,qoriq-pcie-v2.4"; + device_type = "pci"; + #size-cells = <2>; + #address-cells = <3>; + bus-range = <0 0xff>; + clock-frequency = <33333333>; + interrupts = <16 2 1 14>; + pcie@0 { + reg = <0 0 0 0 0>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + device_type = "pci"; + interrupts = <16 2 1 14>; + interrupt-map-mask = <0xf800 0 0 7>; + interrupt-map = < + /* IDSEL 0x0 */ + 0000 0 0 1 &mpic 41 1 0 0 + 0000 0 0 2 &mpic 5 1 0 0 + 0000 0 0 3 &mpic 6 1 0 0 + 0000 0 0 4 &mpic 7 1 0 0 + >; + }; +}; + +/* controller at 0x202000 */ +&pci2 { + compatible = "fsl,p5040-pcie", "fsl,qoriq-pcie-v2.4"; + device_type = "pci"; + #size-cells = <2>; + #address-cells = <3>; + bus-range = <0x0 0xff>; + clock-frequency = <33333333>; + interrupts = <16 2 1 13>; + pcie@0 { + reg = <0 0 0 0 0>; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + device_type = "pci"; + interrupts = <16 2 1 13>; + interrupt-map-mask = <0xf800 0 0 7>; + interrupt-map = < + /* IDSEL 0x0 */ + 0000 0 0 1 &mpic 42 1 0 0 + 0000 0 0 2 &mpic 9 1 0 0 + 0000 0 0 3 &mpic 10 1 0 0 + 0000 0 0 4 &mpic 11 1 0 0 + >; + }; +}; + +&dcsr { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,dcsr", "simple-bus"; + + dcsr-epu@0 { + compatible = "fsl,dcsr-epu"; + interrupts = <52 2 0 0 + 84 2 0 0 + 85 2 0 0>; + reg = <0x0 0x1000>; + }; + dcsr-npc { + compatible = "fsl,dcsr-npc"; + reg = <0x1000 0x1000 0x1000000 0x8000>; + }; + dcsr-nxc@2000 { + compatible = "fsl,dcsr-nxc"; + reg = <0x2000 0x1000>; + }; + dcsr-corenet { + compatible = "fsl,dcsr-corenet"; + reg = <0x8000 0x1000 0xB0000 0x1000>; + }; + dcsr-dpaa@9000 { + compatible = "fsl,p5040-dcsr-dpaa", "fsl,dcsr-dpaa"; + reg = <0x9000 0x1000>; + }; + dcsr-ocn@11000 { + compatible = "fsl,p5040-dcsr-ocn", "fsl,dcsr-ocn"; + reg = <0x11000 0x1000>; + }; + dcsr-ddr@12000 { + compatible = "fsl,dcsr-ddr"; + dev-handle = <&ddr1>; + reg = <0x12000 0x1000>; + }; + dcsr-ddr@13000 { + compatible = "fsl,dcsr-ddr"; + dev-handle = <&ddr2>; + reg = <0x13000 0x1000>; + }; + dcsr-nal@18000 { + compatible = "fsl,p5040-dcsr-nal", "fsl,dcsr-nal"; + reg = <0x18000 0x1000>; + }; + dcsr-rcpm@22000 { + compatible = "fsl,p5040-dcsr-rcpm", "fsl,dcsr-rcpm"; + reg = <0x22000 0x1000>; + }; + dcsr-cpu-sb-proxy@40000 { + compatible = "fsl,dcsr-e5500-sb-proxy", "fsl,dcsr-cpu-sb-proxy"; + cpu-handle = <&cpu0>; + reg = <0x40000 0x1000>; + }; + dcsr-cpu-sb-proxy@41000 { + compatible = "fsl,dcsr-e5500-sb-proxy", "fsl,dcsr-cpu-sb-proxy"; + cpu-handle = <&cpu1>; + reg = <0x41000 0x1000>; + }; + dcsr-cpu-sb-proxy@42000 { + compatible = "fsl,dcsr-e5500-sb-proxy", "fsl,dcsr-cpu-sb-proxy"; + cpu-handle = <&cpu2>; + reg = <0x42000 0x1000>; + }; + dcsr-cpu-sb-proxy@43000 { + compatible = "fsl,dcsr-e5500-sb-proxy", "fsl,dcsr-cpu-sb-proxy"; + cpu-handle = <&cpu3>; + reg = <0x43000 0x1000>; + }; +}; + +&soc { + #address-cells = <1>; + #size-cells = <1>; + device_type = "soc"; + compatible = "simple-bus"; + + soc-sram-error { + compatible = "fsl,soc-sram-error"; + interrupts = <16 2 1 29>; + }; + + corenet-law@0 { + compatible = "fsl,corenet-law"; + reg = <0x0 0x1000>; + fsl,num-laws = <32>; + }; + + ddr1: memory-controller@8000 { + compatible = "fsl,qoriq-memory-controller-v4.5", "fsl,qoriq-memory-controller"; + reg = <0x8000 0x1000>; + interrupts = <16 2 1 23>; + }; + + ddr2: memory-controller@9000 { + compatible = "fsl,qoriq-memory-controller-v4.5","fsl,qoriq-memory-controller"; + reg = <0x9000 0x1000>; + interrupts = <16 2 1 22>; + }; + + cpc: l3-cache-controller@10000 { + compatible = "fsl,p5040-l3-cache-controller", "fsl,p4080-l3-cache-controller", "cache"; + reg = <0x10000 0x1000 + 0x11000 0x1000>; + interrupts = <16 2 1 27 + 16 2 1 26>; + }; + + corenet-cf@18000 { + compatible = "fsl,corenet-cf"; + reg = <0x18000 0x1000>; + interrupts = <16 2 1 31>; + fsl,ccf-num-csdids = <32>; + fsl,ccf-num-snoopids = <32>; + }; + + iommu@20000 { + compatible = "fsl,pamu-v1.0", "fsl,pamu"; + reg = <0x20000 0x5000>; + interrupts = < + 24 2 0 0 + 16 2 1 30>; + }; + +/include/ "qoriq-mpic.dtsi" + + guts: global-utilities@e0000 { + compatible = "fsl,p5040-device-config", "fsl,qoriq-device-config-1.0"; + reg = <0xe0000 0xe00>; + fsl,has-rstcr; + #sleep-cells = <1>; + fsl,liodn-bits = <12>; + }; + + pins: global-utilities@e0e00 { + compatible = "fsl,p5040-pin-control", "fsl,qoriq-pin-control-1.0"; + reg = <0xe0e00 0x200>; + #sleep-cells = <2>; + }; + + clockgen: global-utilities@e1000 { + compatible = "fsl,p5040-clockgen", "fsl,qoriq-clockgen-1.0"; + reg = <0xe1000 0x1000>; + clock-frequency = <0>; + }; + + rcpm: global-utilities@e2000 { + compatible = "fsl,p5040-rcpm", "fsl,qoriq-rcpm-1.0"; + reg = <0xe2000 0x1000>; + #sleep-cells = <1>; + }; + + sfp: sfp@e8000 { + compatible = "fsl,p5040-sfp", "fsl,qoriq-sfp-1.0"; + reg = <0xe8000 0x1000>; + }; + + serdes: serdes@ea000 { + compatible = "fsl,p5040-serdes"; + reg = <0xea000 0x1000>; + }; + +/include/ "qoriq-dma-0.dtsi" +/include/ "qoriq-dma-1.dtsi" +/include/ "qoriq-espi-0.dtsi" + spi@110000 { + fsl,espi-num-chipselects = <4>; + }; + +/include/ "qoriq-esdhc-0.dtsi" + sdhc@114000 { + sdhci,auto-cmd12; + }; + +/include/ "qoriq-i2c-0.dtsi" +/include/ "qoriq-i2c-1.dtsi" +/include/ "qoriq-duart-0.dtsi" +/include/ "qoriq-duart-1.dtsi" +/include/ "qoriq-gpio-0.dtsi" +/include/ "qoriq-usb2-mph-0.dtsi" + usb0: usb@210000 { + compatible = "fsl-usb2-mph-v1.6", "fsl,mpc85xx-usb2-mph", "fsl-usb2-mph"; + phy_type = "utmi"; + port0; + }; + +/include/ "qoriq-usb2-dr-0.dtsi" + usb1: usb@211000 { + compatible = "fsl-usb2-dr-v1.6", "fsl,mpc85xx-usb2-dr", "fsl-usb2-dr"; + dr_mode = "host"; + phy_type = "utmi"; + }; + +/include/ "qoriq-sata2-0.dtsi" +/include/ "qoriq-sata2-1.dtsi" +/include/ "qoriq-sec5.2-0.dtsi" +}; diff --git a/arch/powerpc/boot/dts/fsl/p5040si-pre.dtsi b/arch/powerpc/boot/dts/fsl/p5040si-pre.dtsi new file mode 100644 index 0000000..40ca943 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/p5040si-pre.dtsi @@ -0,0 +1,114 @@ +/* + * P5040 Silicon/SoC Device Tree Source (pre include) + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * This software is provided by Freescale Semiconductor "as is" and any + * express or implied warranties, including, but not limited to, the implied + * warranties of merchantability and fitness for a particular purpose are + * disclaimed. In no event shall Freescale Semiconductor be liable for any + * direct, indirect, incidental, special, exemplary, or consequential damages + * (including, but not limited to, procurement of substitute goods or services; + * loss of use, data, or profits; or business interruption) however caused and + * on any theory of liability, whether in contract, strict liability, or tort + * (including negligence or otherwise) arising in any way out of the use of this + * software, even if advised of the possibility of such damage. + */ + +/dts-v1/; + +/include/ "e5500_power_isa.dtsi" + +/ { + compatible = "fsl,P5040"; + #address-cells = <2>; + #size-cells = <2>; + interrupt-parent = <&mpic>; + + aliases { + ccsr = &soc; + dcsr = &dcsr; + + serial0 = &serial0; + serial1 = &serial1; + serial2 = &serial2; + serial3 = &serial3; + pci0 = &pci0; + pci1 = &pci1; + pci2 = &pci2; + usb0 = &usb0; + usb1 = &usb1; + dma0 = &dma0; + dma1 = &dma1; + sdhc = &sdhc; + msi0 = &msi0; + msi1 = &msi1; + msi2 = &msi2; + + crypto = &crypto; + sec_jr0 = &sec_jr0; + sec_jr1 = &sec_jr1; + sec_jr2 = &sec_jr2; + sec_jr3 = &sec_jr3; + rtic_a = &rtic_a; + rtic_b = &rtic_b; + rtic_c = &rtic_c; + rtic_d = &rtic_d; + sec_mon = &sec_mon; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: PowerPC,e5500@0 { + device_type = "cpu"; + reg = <0>; + next-level-cache = <&L2_0>; + L2_0: l2-cache { + next-level-cache = <&cpc>; + }; + }; + cpu1: PowerPC,e5500@1 { + device_type = "cpu"; + reg = <1>; + next-level-cache = <&L2_1>; + L2_1: l2-cache { + next-level-cache = <&cpc>; + }; + }; + cpu2: PowerPC,e5500@2 { + device_type = "cpu"; + reg = <2>; + next-level-cache = <&L2_2>; + L2_2: l2-cache { + next-level-cache = <&cpc>; + }; + }; + cpu3: PowerPC,e5500@3 { + device_type = "cpu"; + reg = <3>; + next-level-cache = <&L2_3>; + L2_3: l2-cache { + next-level-cache = <&cpc>; + }; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/fsl/qoriq-sec5.2-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-sec5.2-0.dtsi new file mode 100644 index 0000000..7b2ab8a --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/qoriq-sec5.2-0.dtsi @@ -0,0 +1,118 @@ +/* + * QorIQ Sec/Crypto 5.2 device tree stub [ controller @ offset 0x300000 ] + * + * Copyright 2011-2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +crypto: crypto@300000 { + compatible = "fsl,sec-v5.2", "fsl,sec-v5.0", "fsl,sec-v4.0"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x300000 0x10000>; + ranges = <0 0x300000 0x10000>; + interrupts = <92 2 0 0>; + + sec_jr0: jr@1000 { + compatible = "fsl,sec-v5.2-job-ring", + "fsl,sec-v5.0-job-ring", + "fsl,sec-v4.0-job-ring"; + reg = <0x1000 0x1000>; + interrupts = <88 2 0 0>; + }; + + sec_jr1: jr@2000 { + compatible = "fsl,sec-v5.2-job-ring", + "fsl,sec-v5.0-job-ring", + "fsl,sec-v4.0-job-ring"; + reg = <0x2000 0x1000>; + interrupts = <89 2 0 0>; + }; + + sec_jr2: jr@3000 { + compatible = "fsl,sec-v5.2-job-ring", + "fsl,sec-v5.0-job-ring", + "fsl,sec-v4.0-job-ring"; + reg = <0x3000 0x1000>; + interrupts = <90 2 0 0>; + }; + + sec_jr3: jr@4000 { + compatible = "fsl,sec-v5.2-job-ring", + "fsl,sec-v5.0-job-ring", + "fsl,sec-v4.0-job-ring"; + reg = <0x4000 0x1000>; + interrupts = <91 2 0 0>; + }; + + rtic@6000 { + compatible = "fsl,sec-v5.2-rtic", + "fsl,sec-v5.0-rtic", + "fsl,sec-v4.0-rtic"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x6000 0x100>; + ranges = <0x0 0x6100 0xe00>; + + rtic_a: rtic-a@0 { + compatible = "fsl,sec-v5.2-rtic-memory", + "fsl,sec-v5.0-rtic-memory", + "fsl,sec-v4.0-rtic-memory"; + reg = <0x00 0x20 0x100 0x80>; + }; + + rtic_b: rtic-b@20 { + compatible = "fsl,sec-v5.2-rtic-memory", + "fsl,sec-v5.0-rtic-memory", + "fsl,sec-v4.0-rtic-memory"; + reg = <0x20 0x20 0x200 0x80>; + }; + + rtic_c: rtic-c@40 { + compatible = "fsl,sec-v5.2-rtic-memory", + "fsl,sec-v5.0-rtic-memory", + "fsl,sec-v4.0-rtic-memory"; + reg = <0x40 0x20 0x300 0x80>; + }; + + rtic_d: rtic-d@60 { + compatible = "fsl,sec-v5.2-rtic-memory", + "fsl,sec-v5.0-rtic-memory", + "fsl,sec-v4.0-rtic-memory"; + reg = <0x60 0x20 0x500 0x80>; + }; + }; +}; + +sec_mon: sec_mon@314000 { + compatible = "fsl,sec-v5.2-mon", "fsl,sec-v5.0-mon", "fsl,sec-v4.0-mon"; + reg = <0x314000 0x1000>; + interrupts = <93 2 0 0>; +}; diff --git a/arch/powerpc/boot/dts/mpc8536ds.dtsi b/arch/powerpc/boot/dts/mpc8536ds.dtsi index d304a2d..7c3dde8 100644 --- a/arch/powerpc/boot/dts/mpc8536ds.dtsi +++ b/arch/powerpc/boot/dts/mpc8536ds.dtsi @@ -132,6 +132,10 @@ reg = <0x68>; interrupts = <0 0x1 0 0>; }; + adt7461@4c { + compatible = "adi,adt7461"; + reg = <0x4c>; + }; }; spi@7000 { diff --git a/arch/powerpc/boot/dts/mpc8540ads.dts b/arch/powerpc/boot/dts/mpc8540ads.dts index f99fb11..2d31863 100644 --- a/arch/powerpc/boot/dts/mpc8540ads.dts +++ b/arch/powerpc/boot/dts/mpc8540ads.dts @@ -11,6 +11,8 @@ /dts-v1/; +/include/ "fsl/e500v2_power_isa.dtsi" + / { model = "MPC8540ADS"; compatible = "MPC8540ADS", "MPC85xxADS"; diff --git a/arch/powerpc/boot/dts/mpc8541cds.dts b/arch/powerpc/boot/dts/mpc8541cds.dts index 0f5e939..1c03c266 100644 --- a/arch/powerpc/boot/dts/mpc8541cds.dts +++ b/arch/powerpc/boot/dts/mpc8541cds.dts @@ -11,6 +11,8 @@ /dts-v1/; +/include/ "fsl/e500v2_power_isa.dtsi" + / { model = "MPC8541CDS"; compatible = "MPC8541CDS", "MPC85xxCDS"; diff --git a/arch/powerpc/boot/dts/mpc8544ds.dts b/arch/powerpc/boot/dts/mpc8544ds.dts index e934987..ed38874 100644 --- a/arch/powerpc/boot/dts/mpc8544ds.dts +++ b/arch/powerpc/boot/dts/mpc8544ds.dts @@ -20,8 +20,10 @@ reg = <0 0 0 0>; // Filled by U-Boot }; - lbc: localbus@e0005000 { + board_lbc: lbc: localbus@e0005000 { reg = <0 0xe0005000 0 0x1000>; + + ranges = <0x0 0x0 0x0 0xff800000 0x800000>; }; board_soc: soc: soc8544@e0000000 { diff --git a/arch/powerpc/boot/dts/mpc8544ds.dtsi b/arch/powerpc/boot/dts/mpc8544ds.dtsi index 77ebc9f..b219d03 100644 --- a/arch/powerpc/boot/dts/mpc8544ds.dtsi +++ b/arch/powerpc/boot/dts/mpc8544ds.dtsi @@ -32,6 +32,45 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +&board_lbc { + nor@0,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0x0 0x0 0x800000>; + bank-width = <2>; + device-width = <1>; + + partition@0 { + reg = <0x0 0x10000>; + label = "dtb-nor"; + }; + + partition@20000 { + reg = <0x20000 0x30000>; + label = "diagnostic-nor"; + read-only; + }; + + partition@200000 { + reg = <0x200000 0x200000>; + label = "dink-nor"; + read-only; + }; + + partition@400000 { + reg = <0x400000 0x380000>; + label = "kernel-nor"; + }; + + partition@780000 { + reg = <0x780000 0x80000>; + label = "u-boot-nor"; + read-only; + }; + }; +}; + &board_soc { enet0: ethernet@24000 { phy-handle = <&phy0>; diff --git a/arch/powerpc/boot/dts/mpc8555cds.dts b/arch/powerpc/boot/dts/mpc8555cds.dts index fe10438..36a7ea1 100644 --- a/arch/powerpc/boot/dts/mpc8555cds.dts +++ b/arch/powerpc/boot/dts/mpc8555cds.dts @@ -11,6 +11,8 @@ /dts-v1/; +/include/ "fsl/e500v2_power_isa.dtsi" + / { model = "MPC8555CDS"; compatible = "MPC8555CDS", "MPC85xxCDS"; diff --git a/arch/powerpc/boot/dts/mpc8560ads.dts b/arch/powerpc/boot/dts/mpc8560ads.dts index 6e85e1b..1a43f5a 100644 --- a/arch/powerpc/boot/dts/mpc8560ads.dts +++ b/arch/powerpc/boot/dts/mpc8560ads.dts @@ -11,6 +11,8 @@ /dts-v1/; +/include/ "fsl/e500v2_power_isa.dtsi" + / { model = "MPC8560ADS"; compatible = "MPC8560ADS", "MPC85xxADS"; diff --git a/arch/powerpc/boot/dts/o2d.dts b/arch/powerpc/boot/dts/o2d.dts new file mode 100644 index 0000000..9f6dd4d --- /dev/null +++ b/arch/powerpc/boot/dts/o2d.dts @@ -0,0 +1,47 @@ +/* + * O2D Device Tree Source + * + * Copyright (C) 2012 DENX Software Engineering + * Anatolij Gustschin <agust@denx.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/include/ "o2d.dtsi" + +/ { + model = "ifm,o2d"; + compatible = "ifm,o2d"; + + memory { + reg = <0x00000000 0x08000000>; // 128MB + }; + + localbus { + ranges = <0 0 0xfc000000 0x02000000 + 3 0 0xe3000000 0x00100000>; + + flash@0,0 { + compatible = "cfi-flash"; + reg = <0 0 0x02000000>; + bank-width = <2>; + device-width = <2>; + #size-cells = <1>; + #address-cells = <1>; + + partition@60000 { + label = "kernel"; + reg = <0x00060000 0x00260000>; + read-only; + }; + /* o2d specific partitions */ + partition@2c0000 { + label = "o2d user defined"; + reg = <0x002c0000 0x01d40000>; + }; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/o2d.dtsi b/arch/powerpc/boot/dts/o2d.dtsi new file mode 100644 index 0000000..3444eb8 --- /dev/null +++ b/arch/powerpc/boot/dts/o2d.dtsi @@ -0,0 +1,139 @@ +/* + * O2D base Device Tree Source + * + * Copyright (C) 2012 DENX Software Engineering + * Anatolij Gustschin <agust@denx.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/include/ "mpc5200b.dtsi" + +/ { + model = "ifm,o2d"; + compatible = "ifm,o2d"; + + memory { + reg = <0x00000000 0x04000000>; // 64MB + }; + + soc5200@f0000000 { + + gpio_simple: gpio@b00 { + }; + + timer@600 { // General Purpose Timer + #gpio-cells = <2>; + gpio-controller; + fsl,has-wdt; + fsl,wdt-on-boot = <0>; + }; + + timer@610 { + #gpio-cells = <2>; + gpio-controller; + }; + + timer7: timer@670 { + }; + + rtc@800 { + status = "disabled"; + }; + + psc@2000 { // PSC1 + compatible = "fsl,mpc5200b-psc-spi","fsl,mpc5200-psc-spi"; + #address-cells = <1>; + #size-cells = <0>; + cell-index = <0>; + + spidev@0 { + compatible = "spidev"; + spi-max-frequency = <250000>; + reg = <0>; + }; + }; + + psc@2200 { // PSC2 + status = "disabled"; + }; + + psc@2400 { // PSC3 + status = "disabled"; + }; + + psc@2600 { // PSC4 + compatible = "fsl,mpc5200b-psc-uart","fsl,mpc5200-psc-uart"; + }; + + psc@2800 { // PSC5 + compatible = "fsl,mpc5200b-psc-uart","fsl,mpc5200-psc-uart"; + }; + + psc@2c00 { // PSC6 + status = "disabled"; + }; + + ethernet@3000 { + phy-handle = <&phy0>; + }; + + mdio@3000 { + phy0: ethernet-phy@0 { + reg = <0>; + }; + }; + + sclpc@3c00 { + compatible = "fsl,mpc5200-lpbfifo"; + reg = <0x3c00 0x60>; + interrupts = <3 23 0>; + }; + }; + + localbus { + ranges = <0 0 0xff000000 0x01000000 + 3 0 0xe3000000 0x00100000>; + + // flash device at LocalPlus Bus CS0 + flash@0,0 { + compatible = "cfi-flash"; + reg = <0 0 0x01000000>; + bank-width = <1>; + device-width = <2>; + #size-cells = <1>; + #address-cells = <1>; + no-unaligned-direct-access; + + /* common layout for all machines */ + partition@0 { + label = "u-boot"; + reg = <0x00000000 0x00040000>; + read-only; + }; + partition@40000 { + label = "env"; + reg = <0x00040000 0x00020000>; + read-only; + }; + }; + + csi@3,0 { + compatible = "ifm,o2d-csi"; + reg = <3 0 0x00100000>; + ifm,csi-clk-handle = <&timer7>; + gpios = <&gpio_simple 23 0 /* imag_capture */ + &gpio_simple 26 0 /* imag_reset */ + &gpio_simple 29 0>; /* imag_master_en */ + + interrupts = <1 1 2>; /* IRQ1, edge falling */ + + ifm,csi-addr-bus-width = <24>; + ifm,csi-data-bus-width = <8>; + ifm,csi-wait-cycles = <0>; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/o2d300.dts b/arch/powerpc/boot/dts/o2d300.dts new file mode 100644 index 0000000..29affe0 --- /dev/null +++ b/arch/powerpc/boot/dts/o2d300.dts @@ -0,0 +1,52 @@ +/* + * O2D300 Device Tree Source + * + * Copyright (C) 2012 DENX Software Engineering + * Anatolij Gustschin <agust@denx.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/include/ "o2d.dtsi" + +/ { + model = "ifm,o2d300"; + compatible = "ifm,o2d"; + + localbus { + ranges = <0 0 0xfc000000 0x02000000 + 3 0 0xe3000000 0x00100000>; + flash@0,0 { + compatible = "cfi-flash"; + reg = <0 0 0x02000000>; + bank-width = <2>; + device-width = <2>; + #size-cells = <1>; + #address-cells = <1>; + + partition@40000 { + label = "env_1"; + reg = <0x00040000 0x00020000>; + read-only; + }; + partition@60000 { + label = "env_2"; + reg = <0x00060000 0x00020000>; + read-only; + }; + partition@80000 { + label = "kernel"; + reg = <0x00080000 0x00260000>; + read-only; + }; + /* o2d300 specific partitions */ + partition@2e0000 { + label = "o2d300 user defined"; + reg = <0x002e0000 0x01d20000>; + }; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/o2dnt2.dts b/arch/powerpc/boot/dts/o2dnt2.dts new file mode 100644 index 0000000..a0f5b97 --- /dev/null +++ b/arch/powerpc/boot/dts/o2dnt2.dts @@ -0,0 +1,48 @@ +/* + * O2DNT2 Device Tree Source + * + * Copyright (C) 2012 DENX Software Engineering + * Anatolij Gustschin <agust@denx.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/include/ "o2d.dtsi" + +/ { + model = "ifm,o2dnt2"; + compatible = "ifm,o2d"; + + memory { + reg = <0x00000000 0x08000000>; // 128MB + }; + + localbus { + ranges = <0 0 0xfc000000 0x02000000 + 3 0 0xe3000000 0x00100000>; + + flash@0,0 { + compatible = "cfi-flash"; + reg = <0 0 0x02000000>; + bank-width = <2>; + device-width = <2>; + #size-cells = <1>; + #address-cells = <1>; + + partition@60000 { + label = "kernel"; + reg = <0x00060000 0x00260000>; + read-only; + }; + + /* o2dnt2 specific partitions */ + partition@2c0000 { + label = "o2dnt2 user defined"; + reg = <0x002c0000 0x01d40000>; + }; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/o2i.dts b/arch/powerpc/boot/dts/o2i.dts new file mode 100644 index 0000000..e3cc99d --- /dev/null +++ b/arch/powerpc/boot/dts/o2i.dts @@ -0,0 +1,33 @@ +/* + * O2I Device Tree Source + * + * Copyright (C) 2012 DENX Software Engineering + * Anatolij Gustschin <agust@denx.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/include/ "o2d.dtsi" + +/ { + model = "ifm,o2i"; + compatible = "ifm,o2d"; + + localbus { + flash@0,0 { + partition@60000 { + label = "kernel"; + reg = <0x00060000 0x00260000>; + read-only; + }; + /* o2i specific partitions */ + partition@2c0000 { + label = "o2i user defined"; + reg = <0x002c0000 0x00d40000>; + }; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/o2mnt.dts b/arch/powerpc/boot/dts/o2mnt.dts new file mode 100644 index 0000000..d91859a --- /dev/null +++ b/arch/powerpc/boot/dts/o2mnt.dts @@ -0,0 +1,33 @@ +/* + * O2MNT Device Tree Source + * + * Copyright (C) 2012 DENX Software Engineering + * Anatolij Gustschin <agust@denx.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/include/ "o2d.dtsi" + +/ { + model = "ifm,o2mnt"; + compatible = "ifm,o2d"; + + localbus { + flash@0,0 { + partition@60000 { + label = "kernel"; + reg = <0x00060000 0x00260000>; + read-only; + }; + /* add o2mnt specific partitions */ + partition@2c0000 { + label = "o2mnt user defined"; + reg = <0x002c0000 0x00d40000>; + }; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/o3dnt.dts b/arch/powerpc/boot/dts/o3dnt.dts new file mode 100644 index 0000000..acce493 --- /dev/null +++ b/arch/powerpc/boot/dts/o3dnt.dts @@ -0,0 +1,48 @@ +/* + * O3DNT Device Tree Source + * + * Copyright (C) 2012 DENX Software Engineering + * Anatolij Gustschin <agust@denx.de> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/include/ "o2d.dtsi" + +/ { + model = "ifm,o3dnt"; + compatible = "ifm,o2d"; + + memory { + reg = <0x00000000 0x04000000>; // 64MB + }; + + localbus { + ranges = <0 0 0xfc000000 0x01000000 + 3 0 0xe3000000 0x00100000>; + + flash@0,0 { + compatible = "cfi-flash"; + reg = <0 0 0x01000000>; + bank-width = <2>; + device-width = <2>; + #size-cells = <1>; + #address-cells = <1>; + + partition@60000 { + label = "kernel"; + reg = <0x00060000 0x00260000>; + read-only; + }; + + /* o3dnt specific partitions */ + partition@2c0000 { + label = "o3dnt user defined"; + reg = <0x002c0000 0x00d40000>; + }; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/p1020rdb_camp_core0.dts b/arch/powerpc/boot/dts/p1020rdb_camp_core0.dts deleted file mode 100644 index 41b4585..0000000 --- a/arch/powerpc/boot/dts/p1020rdb_camp_core0.dts +++ /dev/null @@ -1,63 +0,0 @@ -/* - * P1020 RDB Core0 Device Tree Source in CAMP mode. - * - * In CAMP mode, each core needs to have its own dts. Only mpic and L2 cache - * can be shared, all the other devices must be assigned to one core only. - * This dts file allows core0 to have memory, l2, i2c, spi, gpio, tdm, dma, usb, - * eth1, eth2, sdhc, crypto, global-util, message, pci0, pci1, msi. - * - * Please note to add "-b 0" for core0's dts compiling. - * - * Copyright 2011 Freescale Semiconductor Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -/include/ "p1020rdb.dts" - -/ { - model = "fsl,P1020RDB"; - compatible = "fsl,P1020RDB", "fsl,MPC85XXRDB-CAMP"; - - aliases { - ethernet1 = &enet1; - ethernet2 = &enet2; - serial0 = &serial0; - pci0 = &pci0; - pci1 = &pci1; - }; - - cpus { - PowerPC,P1020@1 { - status = "disabled"; - }; - }; - - memory { - device_type = "memory"; - }; - - localbus@ffe05000 { - status = "disabled"; - }; - - soc@ffe00000 { - serial1: serial@4600 { - status = "disabled"; - }; - - enet0: ethernet@b0000 { - status = "disabled"; - }; - - mpic: pic@40000 { - protected-sources = < - 42 29 30 34 /* serial1, enet0-queue-group0 */ - 17 18 24 45 /* enet0-queue-group1, crypto */ - >; - }; - }; -}; diff --git a/arch/powerpc/boot/dts/p1020rdb_camp_core1.dts b/arch/powerpc/boot/dts/p1020rdb_camp_core1.dts deleted file mode 100644 index 5174538..0000000 --- a/arch/powerpc/boot/dts/p1020rdb_camp_core1.dts +++ /dev/null @@ -1,141 +0,0 @@ -/* - * P1020 RDB Core1 Device Tree Source in CAMP mode. - * - * In CAMP mode, each core needs to have its own dts. Only mpic and L2 cache - * can be shared, all the other devices must be assigned to one core only. - * This dts allows core1 to have l2, eth0, crypto. - * - * Please note to add "-b 1" for core1's dts compiling. - * - * Copyright 2011 Freescale Semiconductor Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -/include/ "p1020rdb.dts" - -/ { - model = "fsl,P1020RDB"; - compatible = "fsl,P1020RDB", "fsl,MPC85XXRDB-CAMP"; - - aliases { - ethernet0 = &enet0; - serial0 = &serial1; - }; - - cpus { - PowerPC,P1020@0 { - status = "disabled"; - }; - }; - - memory { - device_type = "memory"; - }; - - localbus@ffe05000 { - status = "disabled"; - }; - - soc@ffe00000 { - ecm-law@0 { - status = "disabled"; - }; - - ecm@1000 { - status = "disabled"; - }; - - memory-controller@2000 { - status = "disabled"; - }; - - i2c@3000 { - status = "disabled"; - }; - - i2c@3100 { - status = "disabled"; - }; - - serial0: serial@4500 { - status = "disabled"; - }; - - spi@7000 { - status = "disabled"; - }; - - gpio: gpio-controller@f000 { - status = "disabled"; - }; - - dma@21300 { - status = "disabled"; - }; - - mdio@24000 { - status = "disabled"; - }; - - mdio@25000 { - status = "disabled"; - }; - - enet1: ethernet@b1000 { - status = "disabled"; - }; - - enet2: ethernet@b2000 { - status = "disabled"; - }; - - usb@22000 { - status = "disabled"; - }; - - sdhci@2e000 { - status = "disabled"; - }; - - mpic: pic@40000 { - protected-sources = < - 16 /* ecm, mem, L2, pci0, pci1 */ - 43 42 59 /* i2c, serial0, spi */ - 47 63 62 /* gpio, tdm */ - 20 21 22 23 /* dma */ - 03 02 /* mdio */ - 35 36 40 /* enet1-queue-group0 */ - 51 52 67 /* enet1-queue-group1 */ - 31 32 33 /* enet2-queue-group0 */ - 25 26 27 /* enet2-queue-group1 */ - 28 72 58 /* usb, sdhci, crypto */ - 0xb0 0xb1 0xb2 /* message */ - 0xb3 0xb4 0xb5 - 0xb6 0xb7 - 0xe0 0xe1 0xe2 /* msi */ - 0xe3 0xe4 0xe5 - 0xe6 0xe7 /* sdhci, crypto , pci */ - >; - }; - - msi@41600 { - status = "disabled"; - }; - - global-utilities@e0000 { //global utilities block - status = "disabled"; - }; - }; - - pci0: pcie@ffe09000 { - status = "disabled"; - }; - - pci1: pcie@ffe0a000 { - status = "disabled"; - }; -}; diff --git a/arch/powerpc/boot/dts/p1022ds.dtsi b/arch/powerpc/boot/dts/p1022ds.dtsi index c3344b0..873da35 100644 --- a/arch/powerpc/boot/dts/p1022ds.dtsi +++ b/arch/powerpc/boot/dts/p1022ds.dtsi @@ -149,6 +149,10 @@ compatible = "dallas,ds1339"; reg = <0x68>; }; + adt7461@4c { + compatible = "adi,adt7461"; + reg = <0x4c>; + }; }; spi@7000 { diff --git a/arch/powerpc/boot/dts/p1022rdk.dts b/arch/powerpc/boot/dts/p1022rdk.dts new file mode 100644 index 0000000..51d82de --- /dev/null +++ b/arch/powerpc/boot/dts/p1022rdk.dts @@ -0,0 +1,188 @@ +/* + * P1022 RDK 32-bit Physical Address Map Device Tree Source + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/include/ "fsl/p1022si-pre.dtsi" +/ { + model = "fsl,P1022RDK"; + compatible = "fsl,P1022RDK"; + + memory { + device_type = "memory"; + }; + + board_lbc: lbc: localbus@ffe05000 { + /* The P1022 RDK does not have any localbus devices */ + status = "disabled"; + }; + + board_soc: soc: soc@ffe00000 { + ranges = <0x0 0x0 0xffe00000 0x100000>; + + i2c@3100 { + wm8960:codec@1a { + compatible = "wlf,wm8960"; + reg = <0x1a>; + /* MCLK source is a stand-alone oscillator */ + clock-frequency = <12288000>; + }; + rtc@68 { + compatible = "stm,m41t62"; + reg = <0x68>; + }; + adt7461@4c{ + compatible = "adi,adt7461"; + reg = <0x4c>; + }; + zl6100@21{ + compatible = "isil,zl6100"; + reg = <0x21>; + }; + zl6100@24{ + compatible = "isil,zl6100"; + reg = <0x24>; + }; + zl6100@26{ + compatible = "isil,zl6100"; + reg = <0x26>; + }; + zl6100@29{ + compatible = "isil,zl6100"; + reg = <0x29>; + }; + }; + + spi@7000 { + flash@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "spansion,m25p80"; + reg = <0>; + spi-max-frequency = <1000000>; + partition@0 { + label = "full-spi-flash"; + reg = <0x00000000 0x00100000>; + }; + }; + }; + + ssi@15000 { + fsl,mode = "i2s-slave"; + codec-handle = <&wm8960>; + }; + + usb@22000 { + phy_type = "ulpi"; + }; + + usb@23000 { + phy_type = "ulpi"; + }; + + mdio@24000 { + phy0: ethernet-phy@0 { + interrupts = <3 1 0 0>; + reg = <0x1>; + }; + phy1: ethernet-phy@1 { + interrupts = <9 1 0 0>; + reg = <0x2>; + }; + }; + + mdio@25000 { + tbi0: tbi-phy@11 { + reg = <0x11>; + device_type = "tbi-phy"; + }; + }; + + ethernet@b0000 { + phy-handle = <&phy0>; + phy-connection-type = "rgmii-id"; + }; + + ethernet@b1000 { + phy-handle = <&phy1>; + tbi-handle = <&tbi0>; + phy-connection-type = "sgmii"; + }; + }; + + pci0: pcie@ffe09000 { + ranges = <0x2000000 0x0 0xe0000000 0 0xa0000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0 0xffc10000 0x0 0x10000>; + reg = <0x0 0xffe09000 0 0x1000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; + + pci1: pcie@ffe0a000 { + ranges = <0x2000000 0x0 0xe0000000 0 0xc0000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0 0xffc20000 0x0 0x10000>; + reg = <0 0xffe0a000 0 0x1000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; + + pci2: pcie@ffe0b000 { + ranges = <0x2000000 0x0 0xe0000000 0 0x80000000 0x0 0x20000000 + 0x1000000 0x0 0x00000000 0 0xffc00000 0x0 0x10000>; + reg = <0 0xffe0b000 0 0x1000>; + pcie@0 { + ranges = <0x2000000 0x0 0xe0000000 + 0x2000000 0x0 0xe0000000 + 0x0 0x20000000 + + 0x1000000 0x0 0x0 + 0x1000000 0x0 0x0 + 0x0 0x100000>; + }; + }; +}; + +/include/ "fsl/p1022si-post.dtsi" diff --git a/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts b/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts deleted file mode 100644 index 66aac86..0000000 --- a/arch/powerpc/boot/dts/p2020rdb_camp_core0.dts +++ /dev/null @@ -1,67 +0,0 @@ -/* - * P2020 RDB Core0 Device Tree Source in CAMP mode. - * - * In CAMP mode, each core needs to have its own dts. Only mpic and L2 cache - * can be shared, all the other devices must be assigned to one core only. - * This dts file allows core0 to have memory, l2, i2c, spi, gpio, dma1, usb, - * eth1, eth2, sdhc, crypto, global-util, pci0. - * - * Copyright 2009-2011 Freescale Semiconductor Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -/include/ "p2020rdb.dts" - -/ { - model = "fsl,P2020RDB"; - compatible = "fsl,P2020RDB", "fsl,MPC85XXRDB-CAMP"; - - cpus { - PowerPC,P2020@1 { - status = "disabled"; - }; - }; - - localbus@ffe05000 { - status = "disabled"; - }; - - soc@ffe00000 { - serial1: serial@4600 { - status = "disabled"; - }; - - dma@c300 { - status = "disabled"; - }; - - enet0: ethernet@24000 { - status = "disabled"; - }; - - mpic: pic@40000 { - protected-sources = < - 42 76 77 78 79 /* serial1 , dma2 */ - 29 30 34 26 /* enet0, pci1 */ - 0xe0 0xe1 0xe2 0xe3 /* msi */ - 0xe4 0xe5 0xe6 0xe7 - >; - }; - - msi@41600 { - status = "disabled"; - }; - }; - - pci0: pcie@ffe08000 { - status = "disabled"; - }; - - pci2: pcie@ffe0a000 { - status = "disabled"; - }; -}; diff --git a/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts b/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts deleted file mode 100644 index 9bd8ef49..0000000 --- a/arch/powerpc/boot/dts/p2020rdb_camp_core1.dts +++ /dev/null @@ -1,125 +0,0 @@ -/* - * P2020 RDB Core1 Device Tree Source in CAMP mode. - * - * In CAMP mode, each core needs to have its own dts. Only mpic and L2 cache - * can be shared, all the other devices must be assigned to one core only. - * This dts allows core1 to have l2, dma2, eth0, pci1, msi. - * - * Please note to add "-b 1" for core1's dts compiling. - * - * Copyright 2009-2011 Freescale Semiconductor Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -/include/ "p2020rdb.dts" - -/ { - model = "fsl,P2020RDB"; - compatible = "fsl,P2020RDB", "fsl,MPC85XXRDB-CAMP"; - - cpus { - PowerPC,P2020@0 { - status = "disabled"; - }; - }; - - localbus@ffe05000 { - status = "disabled"; - }; - - soc@ffe00000 { - ecm-law@0 { - status = "disabled"; - }; - - ecm@1000 { - status = "disabled"; - }; - - memory-controller@2000 { - status = "disabled"; - }; - - i2c@3000 { - status = "disabled"; - }; - - i2c@3100 { - status = "disabled"; - }; - - serial0: serial@4500 { - status = "disabled"; - }; - - spi@7000 { - status = "disabled"; - }; - - gpio: gpio-controller@f000 { - status = "disabled"; - }; - - dma@21300 { - status = "disabled"; - }; - - usb@22000 { - status = "disabled"; - }; - - mdio@24520 { - status = "disabled"; - }; - - mdio@25520 { - status = "disabled"; - }; - - mdio@26520 { - status = "disabled"; - }; - - enet1: ethernet@25000 { - status = "disabled"; - }; - - enet2: ethernet@26000 { - status = "disabled"; - }; - - sdhci@2e000 { - status = "disabled"; - }; - - crypto@30000 { - status = "disabled"; - }; - - mpic: pic@40000 { - protected-sources = < - 17 18 43 42 59 47 /*ecm, mem, i2c, serial0, spi,gpio */ - 16 20 21 22 23 28 /* L2, dma1, USB */ - 03 35 36 40 31 32 33 /* mdio, enet1, enet2 */ - 72 45 58 25 /* sdhci, crypto , pci */ - >; - }; - - global-utilities@e0000 { //global utilities block - status = "disabled"; - }; - - }; - - pci0: pcie@ffe08000 { - status = "disabled"; - }; - - pci1: pcie@ffe09000 { - status = "disabled"; - }; -}; diff --git a/arch/powerpc/boot/dts/p2041rdb.dts b/arch/powerpc/boot/dts/p2041rdb.dts index baab034..d97ad74 100644 --- a/arch/powerpc/boot/dts/p2041rdb.dts +++ b/arch/powerpc/boot/dts/p2041rdb.dts @@ -94,6 +94,10 @@ compatible = "pericom,pt7c4338"; reg = <0x68>; }; + adt7461@4c { + compatible = "adi,adt7461"; + reg = <0x4c>; + }; }; i2c@118100 { diff --git a/arch/powerpc/boot/dts/p3041ds.dts b/arch/powerpc/boot/dts/p3041ds.dts index 6cdcadc..2fed3bc 100644 --- a/arch/powerpc/boot/dts/p3041ds.dts +++ b/arch/powerpc/boot/dts/p3041ds.dts @@ -98,6 +98,10 @@ reg = <0x68>; interrupts = <0x1 0x1 0 0>; }; + adt7461@4c { + compatible = "adi,adt7461"; + reg = <0x4c>; + }; }; }; diff --git a/arch/powerpc/boot/dts/p4080ds.dts b/arch/powerpc/boot/dts/p4080ds.dts index 3e20460..1cf6148 100644 --- a/arch/powerpc/boot/dts/p4080ds.dts +++ b/arch/powerpc/boot/dts/p4080ds.dts @@ -96,6 +96,10 @@ reg = <0x68>; interrupts = <0x1 0x1 0 0>; }; + adt7461@4c { + compatible = "adi,adt7461"; + reg = <0x4c>; + }; }; usb0: usb@210000 { diff --git a/arch/powerpc/boot/dts/p5020ds.dts b/arch/powerpc/boot/dts/p5020ds.dts index 27c07ed..2869fea 100644 --- a/arch/powerpc/boot/dts/p5020ds.dts +++ b/arch/powerpc/boot/dts/p5020ds.dts @@ -98,6 +98,10 @@ reg = <0x68>; interrupts = <0x1 0x1 0 0>; }; + adt7461@4c { + compatible = "adi,adt7461"; + reg = <0x4c>; + }; }; }; diff --git a/arch/powerpc/boot/dts/p5040ds.dts b/arch/powerpc/boot/dts/p5040ds.dts new file mode 100644 index 0000000..860b5cc --- /dev/null +++ b/arch/powerpc/boot/dts/p5040ds.dts @@ -0,0 +1,207 @@ +/* + * P5040DS Device Tree Source + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * This software is provided by Freescale Semiconductor "as is" and any + * express or implied warranties, including, but not limited to, the implied + * warranties of merchantability and fitness for a particular purpose are + * disclaimed. In no event shall Freescale Semiconductor be liable for any + * direct, indirect, incidental, special, exemplary, or consequential damages + * (including, but not limited to, procurement of substitute goods or services; + * loss of use, data, or profits; or business interruption) however caused and + * on any theory of liability, whether in contract, strict liability, or tort + * (including negligence or otherwise) arising in any way out of the use of this + * software, even if advised of the possibility of such damage. + */ + +/include/ "fsl/p5040si-pre.dtsi" + +/ { + model = "fsl,P5040DS"; + compatible = "fsl,P5040DS"; + #address-cells = <2>; + #size-cells = <2>; + interrupt-parent = <&mpic>; + + memory { + device_type = "memory"; + }; + + dcsr: dcsr@f00000000 { + ranges = <0x00000000 0xf 0x00000000 0x01008000>; + }; + + soc: soc@ffe000000 { + ranges = <0x00000000 0xf 0xfe000000 0x1000000>; + reg = <0xf 0xfe000000 0 0x00001000>; + spi@110000 { + flash@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "spansion,s25sl12801"; + reg = <0>; + spi-max-frequency = <40000000>; /* input clock */ + partition@u-boot { + label = "u-boot"; + reg = <0x00000000 0x00100000>; + }; + partition@kernel { + label = "kernel"; + reg = <0x00100000 0x00500000>; + }; + partition@dtb { + label = "dtb"; + reg = <0x00600000 0x00100000>; + }; + partition@fs { + label = "file system"; + reg = <0x00700000 0x00900000>; + }; + }; + }; + + i2c@118100 { + eeprom@51 { + compatible = "at24,24c256"; + reg = <0x51>; + }; + eeprom@52 { + compatible = "at24,24c256"; + reg = <0x52>; + }; + }; + + i2c@119100 { + rtc@68 { + compatible = "dallas,ds3232"; + reg = <0x68>; + interrupts = <0x1 0x1 0 0>; + }; + adt7461@4c { + compatible = "adi,adt7461"; + reg = <0x4c>; + }; + }; + }; + + lbc: localbus@ffe124000 { + reg = <0xf 0xfe124000 0 0x1000>; + ranges = <0 0 0xf 0xe8000000 0x08000000 + 2 0 0xf 0xffa00000 0x00040000 + 3 0 0xf 0xffdf0000 0x00008000>; + + flash@0,0 { + compatible = "cfi-flash"; + reg = <0 0 0x08000000>; + bank-width = <2>; + device-width = <2>; + }; + + nand@2,0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,elbc-fcm-nand"; + reg = <0x2 0x0 0x40000>; + + partition@0 { + label = "NAND U-Boot Image"; + reg = <0x0 0x02000000>; + }; + + partition@2000000 { + label = "NAND Root File System"; + reg = <0x02000000 0x10000000>; + }; + + partition@12000000 { + label = "NAND Compressed RFS Image"; + reg = <0x12000000 0x08000000>; + }; + + partition@1a000000 { + label = "NAND Linux Kernel Image"; + reg = <0x1a000000 0x04000000>; + }; + + partition@1e000000 { + label = "NAND DTB Image"; + reg = <0x1e000000 0x01000000>; + }; + + partition@1f000000 { + label = "NAND Writable User area"; + reg = <0x1f000000 0x01000000>; + }; + }; + + board-control@3,0 { + compatible = "fsl,p5040ds-fpga", "fsl,fpga-ngpixis"; + reg = <3 0 0x40>; + }; + }; + + pci0: pcie@ffe200000 { + reg = <0xf 0xfe200000 0 0x1000>; + ranges = <0x02000000 0 0xe0000000 0xc 0x00000000 0x0 0x20000000 + 0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000>; + pcie@0 { + ranges = <0x02000000 0 0xe0000000 + 0x02000000 0 0xe0000000 + 0 0x20000000 + + 0x01000000 0 0x00000000 + 0x01000000 0 0x00000000 + 0 0x00010000>; + }; + }; + + pci1: pcie@ffe201000 { + reg = <0xf 0xfe201000 0 0x1000>; + ranges = <0x02000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000 + 0x01000000 0x0 0x00000000 0xf 0xf8010000 0x0 0x00010000>; + pcie@0 { + ranges = <0x02000000 0 0xe0000000 + 0x02000000 0 0xe0000000 + 0 0x20000000 + + 0x01000000 0 0x00000000 + 0x01000000 0 0x00000000 + 0 0x00010000>; + }; + }; + + pci2: pcie@ffe202000 { + reg = <0xf 0xfe202000 0 0x1000>; + ranges = <0x02000000 0 0xe0000000 0xc 0x40000000 0 0x20000000 + 0x01000000 0 0x00000000 0xf 0xf8020000 0 0x00010000>; + pcie@0 { + ranges = <0x02000000 0 0xe0000000 + 0x02000000 0 0xe0000000 + 0 0x20000000 + + 0x01000000 0 0x00000000 + 0x01000000 0 0x00000000 + 0 0x00010000>; + }; + }; +}; + +/include/ "fsl/p5040si-post.dtsi" diff --git a/arch/powerpc/configs/85xx/p1023rds_defconfig b/arch/powerpc/configs/85xx/p1023rds_defconfig index 26e541c..b80bcc6 100644 --- a/arch/powerpc/configs/85xx/p1023rds_defconfig +++ b/arch/powerpc/configs/85xx/p1023rds_defconfig @@ -112,6 +112,12 @@ CONFIG_SND=y CONFIG_SND_MIXER_OSS=y CONFIG_SND_PCM_OSS=y # CONFIG_SND_SUPPORT_OLD_API is not set +CONFIG_USB=y +CONFIG_USB_DEVICEFS=y +CONFIG_USB_MON=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_FSL=y +CONFIG_USB_STORAGE=y CONFIG_EDAC=y CONFIG_EDAC_MM_EDAC=y CONFIG_RTC_CLASS=y diff --git a/arch/powerpc/configs/corenet32_smp_defconfig b/arch/powerpc/configs/corenet32_smp_defconfig index 8b3d57c..1c0f243 100644 --- a/arch/powerpc/configs/corenet32_smp_defconfig +++ b/arch/powerpc/configs/corenet32_smp_defconfig @@ -27,6 +27,7 @@ CONFIG_P2041_RDB=y CONFIG_P3041_DS=y CONFIG_P4080_DS=y CONFIG_P5020_DS=y +CONFIG_P5040_DS=y CONFIG_HIGHMEM=y # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set CONFIG_BINFMT_MISC=m diff --git a/arch/powerpc/configs/corenet64_smp_defconfig b/arch/powerpc/configs/corenet64_smp_defconfig index 0516e22..88fa5c4 100644 --- a/arch/powerpc/configs/corenet64_smp_defconfig +++ b/arch/powerpc/configs/corenet64_smp_defconfig @@ -23,6 +23,7 @@ CONFIG_MODVERSIONS=y CONFIG_PARTITION_ADVANCED=y CONFIG_MAC_PARTITION=y CONFIG_P5020_DS=y +CONFIG_P5040_DS=y # CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set CONFIG_BINFMT_MISC=m CONFIG_IRQ_ALL_CPUS=y diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig index 8b5bda2..cf815e8 100644 --- a/arch/powerpc/configs/mpc85xx_defconfig +++ b/arch/powerpc/configs/mpc85xx_defconfig @@ -30,6 +30,7 @@ CONFIG_MPC85xx_DS=y CONFIG_MPC85xx_RDB=y CONFIG_P1010_RDB=y CONFIG_P1022_DS=y +CONFIG_P1022_RDK=y CONFIG_P1023_RDS=y CONFIG_SOCRATES=y CONFIG_KSI8560=y diff --git a/arch/powerpc/configs/mpc85xx_smp_defconfig b/arch/powerpc/configs/mpc85xx_smp_defconfig index b0974e7..502cd9e 100644 --- a/arch/powerpc/configs/mpc85xx_smp_defconfig +++ b/arch/powerpc/configs/mpc85xx_smp_defconfig @@ -32,6 +32,7 @@ CONFIG_MPC85xx_DS=y CONFIG_MPC85xx_RDB=y CONFIG_P1010_RDB=y CONFIG_P1022_DS=y +CONFIG_P1022_RDK=y CONFIG_P1023_RDS=y CONFIG_SOCRATES=y CONFIG_KSI8560=y diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index de7c4c5..6d03530b 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -51,6 +51,7 @@ CONFIG_KEXEC=y CONFIG_IRQ_ALL_CPUS=y CONFIG_MEMORY_HOTREMOVE=y CONFIG_SCHED_SMT=y +CONFIG_PPC_DENORMALISATION=y CONFIG_PCCARD=y CONFIG_ELECTRA_CF=y CONFIG_HOTPLUG_PCI=m diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig index 9f4a936..1f710a3 100644 --- a/arch/powerpc/configs/pseries_defconfig +++ b/arch/powerpc/configs/pseries_defconfig @@ -48,6 +48,7 @@ CONFIG_MEMORY_HOTREMOVE=y CONFIG_PPC_64K_PAGES=y CONFIG_PPC_SUBPAGE_PROT=y CONFIG_SCHED_SMT=y +CONFIG_PPC_DENORMALISATION=y CONFIG_HOTPLUG_PCI=m CONFIG_HOTPLUG_PCI_RPA=m CONFIG_HOTPLUG_PCI_RPA_DLPAR=m diff --git a/arch/powerpc/include/asm/abs_addr.h b/arch/powerpc/include/asm/abs_addr.h deleted file mode 100644 index 9d92ba0..0000000 --- a/arch/powerpc/include/asm/abs_addr.h +++ /dev/null @@ -1,56 +0,0 @@ -#ifndef _ASM_POWERPC_ABS_ADDR_H -#define _ASM_POWERPC_ABS_ADDR_H -#ifdef __KERNEL__ - - -/* - * c 2001 PPC 64 Team, IBM Corp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/memblock.h> - -#include <asm/types.h> -#include <asm/page.h> -#include <asm/prom.h> - -struct mschunks_map { - unsigned long num_chunks; - unsigned long chunk_size; - unsigned long chunk_shift; - unsigned long chunk_mask; - u32 *mapping; -}; - -extern struct mschunks_map mschunks_map; - -/* Chunks are 256 KB */ -#define MSCHUNKS_CHUNK_SHIFT (18) -#define MSCHUNKS_CHUNK_SIZE (1UL << MSCHUNKS_CHUNK_SHIFT) -#define MSCHUNKS_OFFSET_MASK (MSCHUNKS_CHUNK_SIZE - 1) - -static inline unsigned long chunk_to_addr(unsigned long chunk) -{ - return chunk << MSCHUNKS_CHUNK_SHIFT; -} - -static inline unsigned long addr_to_chunk(unsigned long addr) -{ - return addr >> MSCHUNKS_CHUNK_SHIFT; -} - -static inline unsigned long phys_to_abs(unsigned long pa) -{ - return pa; -} - -/* Convenience macros */ -#define virt_to_abs(va) phys_to_abs(__pa(va)) -#define abs_to_virt(aa) __va(aa) - -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_ABS_ADDR_H */ diff --git a/arch/powerpc/include/asm/cacheflush.h b/arch/powerpc/include/asm/cacheflush.h index ab9e402..b843e35 100644 --- a/arch/powerpc/include/asm/cacheflush.h +++ b/arch/powerpc/include/asm/cacheflush.h @@ -30,6 +30,8 @@ extern void flush_dcache_page(struct page *page); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) +extern void __flush_disable_L1(void); + extern void __flush_icache_range(unsigned long, unsigned long); static inline void flush_icache_range(unsigned long start, unsigned long stop) { diff --git a/arch/powerpc/include/asm/debug.h b/arch/powerpc/include/asm/debug.h index 716d2f0..32de257 100644 --- a/arch/powerpc/include/asm/debug.h +++ b/arch/powerpc/include/asm/debug.h @@ -44,7 +44,7 @@ static inline int debugger_dabr_match(struct pt_regs *regs) { return 0; } static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } #endif -extern int set_dabr(unsigned long dabr); +extern int set_dabr(unsigned long dabr, unsigned long dabrx); #ifdef CONFIG_PPC_ADV_DEBUG_REGS extern void do_send_trap(struct pt_regs *regs, unsigned long address, unsigned long error_code, int signal_code, int brkpt); diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index d60f998..b0ef738 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -32,27 +32,62 @@ struct device_node; #ifdef CONFIG_EEH /* + * The struct is used to trace PE related EEH functionality. + * In theory, there will have one instance of the struct to + * be created against particular PE. In nature, PEs corelate + * to each other. the struct has to reflect that hierarchy in + * order to easily pick up those affected PEs when one particular + * PE has EEH errors. + * + * Also, one particular PE might be composed of PCI device, PCI + * bus and its subordinate components. The struct also need ship + * the information. Further more, one particular PE is only meaingful + * in the corresponding PHB. Therefore, the root PEs should be created + * against existing PHBs in on-to-one fashion. + */ +#define EEH_PE_INVALID (1 << 0) /* Invalid */ +#define EEH_PE_PHB (1 << 1) /* PHB PE */ +#define EEH_PE_DEVICE (1 << 2) /* Device PE */ +#define EEH_PE_BUS (1 << 3) /* Bus PE */ + +#define EEH_PE_ISOLATED (1 << 0) /* Isolated PE */ +#define EEH_PE_RECOVERING (1 << 1) /* Recovering PE */ + +struct eeh_pe { + int type; /* PE type: PHB/Bus/Device */ + int state; /* PE EEH dependent mode */ + int config_addr; /* Traditional PCI address */ + int addr; /* PE configuration address */ + struct pci_controller *phb; /* Associated PHB */ + int check_count; /* Times of ignored error */ + int freeze_count; /* Times of froze up */ + int false_positives; /* Times of reported #ff's */ + struct eeh_pe *parent; /* Parent PE */ + struct list_head child_list; /* Link PE to the child list */ + struct list_head edevs; /* Link list of EEH devices */ + struct list_head child; /* Child PEs */ +}; + +#define eeh_pe_for_each_dev(pe, edev) \ + list_for_each_entry(edev, &pe->edevs, list) + +/* * The struct is used to trace EEH state for the associated * PCI device node or PCI device. In future, it might * represent PE as well so that the EEH device to form * another tree except the currently existing tree of PCI * buses and PCI devices */ -#define EEH_MODE_SUPPORTED (1<<0) /* EEH supported on the device */ -#define EEH_MODE_NOCHECK (1<<1) /* EEH check should be skipped */ -#define EEH_MODE_ISOLATED (1<<2) /* The device has been isolated */ -#define EEH_MODE_RECOVERING (1<<3) /* Recovering the device */ -#define EEH_MODE_IRQ_DISABLED (1<<4) /* Interrupt disabled */ +#define EEH_DEV_IRQ_DISABLED (1<<0) /* Interrupt disabled */ struct eeh_dev { int mode; /* EEH mode */ int class_code; /* Class code of the device */ int config_addr; /* Config address */ int pe_config_addr; /* PE config address */ - int check_count; /* Times of ignored error */ - int freeze_count; /* Times of froze up */ - int false_positives; /* Times of reported #ff's */ u32 config_space[16]; /* Saved PCI config space */ + struct eeh_pe *pe; /* Associated PE */ + struct list_head list; /* Form link list in the PE */ struct pci_controller *phb; /* Associated PHB */ struct device_node *dn; /* Associated device node */ struct pci_dev *pdev; /* Associated PCI device */ @@ -95,19 +130,51 @@ static inline struct pci_dev *eeh_dev_to_pci_dev(struct eeh_dev *edev) struct eeh_ops { char *name; int (*init)(void); - int (*set_option)(struct device_node *dn, int option); - int (*get_pe_addr)(struct device_node *dn); - int (*get_state)(struct device_node *dn, int *state); - int (*reset)(struct device_node *dn, int option); - int (*wait_state)(struct device_node *dn, int max_wait); - int (*get_log)(struct device_node *dn, int severity, char *drv_log, unsigned long len); - int (*configure_bridge)(struct device_node *dn); + void* (*of_probe)(struct device_node *dn, void *flag); + void* (*dev_probe)(struct pci_dev *dev, void *flag); + int (*set_option)(struct eeh_pe *pe, int option); + int (*get_pe_addr)(struct eeh_pe *pe); + int (*get_state)(struct eeh_pe *pe, int *state); + int (*reset)(struct eeh_pe *pe, int option); + int (*wait_state)(struct eeh_pe *pe, int max_wait); + int (*get_log)(struct eeh_pe *pe, int severity, char *drv_log, unsigned long len); + int (*configure_bridge)(struct eeh_pe *pe); int (*read_config)(struct device_node *dn, int where, int size, u32 *val); int (*write_config)(struct device_node *dn, int where, int size, u32 val); }; extern struct eeh_ops *eeh_ops; extern int eeh_subsystem_enabled; +extern struct mutex eeh_mutex; +extern int eeh_probe_mode; + +#define EEH_PROBE_MODE_DEV (1<<0) /* From PCI device */ +#define EEH_PROBE_MODE_DEVTREE (1<<1) /* From device tree */ + +static inline void eeh_probe_mode_set(int flag) +{ + eeh_probe_mode = flag; +} + +static inline int eeh_probe_mode_devtree(void) +{ + return (eeh_probe_mode == EEH_PROBE_MODE_DEVTREE); +} + +static inline int eeh_probe_mode_dev(void) +{ + return (eeh_probe_mode == EEH_PROBE_MODE_DEV); +} + +static inline void eeh_lock(void) +{ + mutex_lock(&eeh_mutex); +} + +static inline void eeh_unlock(void) +{ + mutex_unlock(&eeh_mutex); +} /* * Max number of EEH freezes allowed before we consider the device @@ -115,22 +182,26 @@ extern int eeh_subsystem_enabled; */ #define EEH_MAX_ALLOWED_FREEZES 5 +typedef void *(*eeh_traverse_func)(void *data, void *flag); +int __devinit eeh_phb_pe_create(struct pci_controller *phb); +int eeh_add_to_parent_pe(struct eeh_dev *edev); +int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe); +void *eeh_pe_dev_traverse(struct eeh_pe *root, + eeh_traverse_func fn, void *flag); +void eeh_pe_restore_bars(struct eeh_pe *pe); +struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe); + void * __devinit eeh_dev_init(struct device_node *dn, void *data); void __devinit eeh_dev_phb_init_dynamic(struct pci_controller *phb); -void __init eeh_dev_phb_init(void); -void __init eeh_init(void); -#ifdef CONFIG_PPC_PSERIES -int __init eeh_pseries_init(void); -#endif int __init eeh_ops_register(struct eeh_ops *ops); int __exit eeh_ops_unregister(const char *name); unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val); -int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev); -void __init pci_addr_cache_build(void); +int eeh_dev_check_failure(struct eeh_dev *edev); +void __init eeh_addr_cache_build(void); void eeh_add_device_tree_early(struct device_node *); void eeh_add_device_tree_late(struct pci_bus *); -void eeh_remove_bus_device(struct pci_dev *); +void eeh_remove_bus_device(struct pci_dev *, int); /** * EEH_POSSIBLE_ERROR() -- test for possible MMIO failure. @@ -156,34 +227,24 @@ static inline void *eeh_dev_init(struct device_node *dn, void *data) static inline void eeh_dev_phb_init_dynamic(struct pci_controller *phb) { } -static inline void eeh_dev_phb_init(void) { } - -static inline void eeh_init(void) { } - -#ifdef CONFIG_PPC_PSERIES -static inline int eeh_pseries_init(void) -{ - return 0; -} -#endif /* CONFIG_PPC_PSERIES */ - static inline unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val) { return val; } -static inline int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) -{ - return 0; -} +#define eeh_dev_check_failure(x) (0) -static inline void pci_addr_cache_build(void) { } +static inline void eeh_addr_cache_build(void) { } static inline void eeh_add_device_tree_early(struct device_node *dn) { } static inline void eeh_add_device_tree_late(struct pci_bus *bus) { } -static inline void eeh_remove_bus_device(struct pci_dev *dev) { } +static inline void eeh_remove_bus_device(struct pci_dev *dev, int purge_pe) { } + +static inline void eeh_lock(void) { } +static inline void eeh_unlock(void) { } + #define EEH_POSSIBLE_ERROR(val, type) (0) #define EEH_IO_ERROR_VALUE(size) (-1UL) #endif /* CONFIG_EEH */ diff --git a/arch/powerpc/include/asm/eeh_event.h b/arch/powerpc/include/asm/eeh_event.h index c68b012..de67d83 100644 --- a/arch/powerpc/include/asm/eeh_event.h +++ b/arch/powerpc/include/asm/eeh_event.h @@ -28,11 +28,11 @@ */ struct eeh_event { struct list_head list; /* to form event queue */ - struct eeh_dev *edev; /* EEH device */ + struct eeh_pe *pe; /* EEH PE */ }; -int eeh_send_failure_event(struct eeh_dev *edev); -struct eeh_dev *handle_eeh_events(struct eeh_event *); +int eeh_send_failure_event(struct eeh_pe *pe); +void eeh_handle_event(struct eeh_pe *pe); #endif /* __KERNEL__ */ #endif /* ASM_POWERPC_EEH_EVENT_H */ diff --git a/arch/powerpc/include/asm/exception-64e.h b/arch/powerpc/include/asm/exception-64e.h index ac13add..51fa43e 100644 --- a/arch/powerpc/include/asm/exception-64e.h +++ b/arch/powerpc/include/asm/exception-64e.h @@ -37,6 +37,7 @@ * critical data */ +#define PACA_EXGDBELL PACA_EXGEN /* We are out of SPRGs so we save some things in the PACA. The normal * exception frame is smaller than the CRIT or MC one though @@ -45,8 +46,9 @@ #define EX_CR (1 * 8) #define EX_R10 (2 * 8) #define EX_R11 (3 * 8) -#define EX_R14 (4 * 8) -#define EX_R15 (5 * 8) +#define EX_R13 (4 * 8) +#define EX_R14 (5 * 8) +#define EX_R15 (6 * 8) /* * The TLB miss exception uses different slots. diff --git a/arch/powerpc/include/asm/fsl_guts.h b/arch/powerpc/include/asm/fsl_guts.h index aa4c488..dd5ba2c 100644 --- a/arch/powerpc/include/asm/fsl_guts.h +++ b/arch/powerpc/include/asm/fsl_guts.h @@ -48,6 +48,8 @@ struct ccsr_guts { __be32 dmuxcr; /* 0x.0068 - DMA Mux Control Register */ u8 res06c[0x70 - 0x6c]; __be32 devdisr; /* 0x.0070 - Device Disable Control */ +#define CCSR_GUTS_DEVDISR_TB1 0x00001000 +#define CCSR_GUTS_DEVDISR_TB0 0x00004000 __be32 devdisr2; /* 0x.0074 - Device Disable Control 2 */ u8 res078[0x7c - 0x78]; __be32 pmjcr; /* 0x.007c - 4 Power Management Jog Control Register */ diff --git a/arch/powerpc/include/asm/fsl_ifc.h b/arch/powerpc/include/asm/fsl_ifc.h index b955012..b8a4b9b 100644 --- a/arch/powerpc/include/asm/fsl_ifc.h +++ b/arch/powerpc/include/asm/fsl_ifc.h @@ -768,22 +768,24 @@ struct fsl_ifc_gpcm { */ struct fsl_ifc_regs { __be32 ifc_rev; - u32 res1[0x3]; + u32 res1[0x2]; struct { + __be32 cspr_ext; __be32 cspr; - u32 res2[0x2]; + u32 res2; } cspr_cs[FSL_IFC_BANK_COUNT]; - u32 res3[0x18]; + u32 res3[0x19]; struct { __be32 amask; u32 res4[0x2]; } amask_cs[FSL_IFC_BANK_COUNT]; - u32 res5[0x18]; + u32 res5[0x17]; struct { + __be32 csor_ext; __be32 csor; - u32 res6[0x2]; + u32 res6; } csor_cs[FSL_IFC_BANK_COUNT]; - u32 res7[0x18]; + u32 res7[0x19]; struct { __be32 ftim[4]; u32 res8[0x8]; diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index 423cf9e..7a86706 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -152,11 +152,6 @@ #define H_VASI_RESUMED 5 #define H_VASI_COMPLETED 6 -/* DABRX flags */ -#define H_DABRX_HYPERVISOR (1UL<<(63-61)) -#define H_DABRX_KERNEL (1UL<<(63-62)) -#define H_DABRX_USER (1UL<<(63-63)) - /* Each control block has to be on a 4K boundary */ #define H_CB_ALIGNMENT 4096 diff --git a/arch/powerpc/include/asm/hw_breakpoint.h b/arch/powerpc/include/asm/hw_breakpoint.h index be04330..4234245 100644 --- a/arch/powerpc/include/asm/hw_breakpoint.h +++ b/arch/powerpc/include/asm/hw_breakpoint.h @@ -27,10 +27,11 @@ #ifdef CONFIG_HAVE_HW_BREAKPOINT struct arch_hw_breakpoint { - bool extraneous_interrupt; - u8 len; /* length of the target data symbol */ - int type; unsigned long address; + unsigned long dabrx; + int type; + u8 len; /* length of the target data symbol */ + bool extraneous_interrupt; }; #include <linux/kdebug.h> @@ -61,7 +62,7 @@ extern void ptrace_triggered(struct perf_event *bp, struct perf_sample_data *data, struct pt_regs *regs); static inline void hw_breakpoint_disable(void) { - set_dabr(0); + set_dabr(0, 0); } extern void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs); diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h index be0171a..7b6feab 100644 --- a/arch/powerpc/include/asm/kprobes.h +++ b/arch/powerpc/include/asm/kprobes.h @@ -29,21 +29,16 @@ #include <linux/types.h> #include <linux/ptrace.h> #include <linux/percpu.h> +#include <asm/probes.h> #define __ARCH_WANT_KPROBES_INSN_SLOT struct pt_regs; struct kprobe; -typedef unsigned int kprobe_opcode_t; -#define BREAKPOINT_INSTRUCTION 0x7fe00008 /* trap */ +typedef ppc_opcode_t kprobe_opcode_t; #define MAX_INSN_SIZE 1 -#define IS_TW(instr) (((instr) & 0xfc0007fe) == 0x7c000008) -#define IS_TD(instr) (((instr) & 0xfc0007fe) == 0x7c000088) -#define IS_TDI(instr) (((instr) & 0xfc000000) == 0x08000000) -#define IS_TWI(instr) (((instr) & 0xfc000000) == 0x0c000000) - #ifdef CONFIG_PPC64 /* * 64bit powerpc uses function descriptors. @@ -72,12 +67,6 @@ typedef unsigned int kprobe_opcode_t; addr = (kprobe_opcode_t *)kallsyms_lookup_name(dot_name); \ } \ } - -#define is_trap(instr) (IS_TW(instr) || IS_TD(instr) || \ - IS_TWI(instr) || IS_TDI(instr)) -#else -/* Use stock kprobe_lookup_name since ppc32 doesn't use function descriptors */ -#define is_trap(instr) (IS_TW(instr) || IS_TWI(instr)) #endif #define flush_insn_slot(p) do { } while (0) diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index f0e0c6a..7aefdb3 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -59,7 +59,7 @@ struct hpte_cache { struct hlist_node list_vpte; struct hlist_node list_vpte_long; struct rcu_head rcu_head; - u64 host_va; + u64 host_vpn; u64 pfn; ulong slot; struct kvmppc_pte pte; diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h index bfcd00c..88609b2 100644 --- a/arch/powerpc/include/asm/kvm_book3s_asm.h +++ b/arch/powerpc/include/asm/kvm_book3s_asm.h @@ -74,7 +74,6 @@ struct kvmppc_host_state { ulong vmhandler; ulong scratch0; ulong scratch1; - ulong sprg3; u8 in_guest; u8 restore_hid5; u8 napping; diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index f7706d7..c423197 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -34,19 +34,19 @@ struct machdep_calls { char *name; #ifdef CONFIG_PPC64 void (*hpte_invalidate)(unsigned long slot, - unsigned long va, + unsigned long vpn, int psize, int ssize, int local); long (*hpte_updatepp)(unsigned long slot, unsigned long newpp, - unsigned long va, + unsigned long vpn, int psize, int ssize, int local); void (*hpte_updateboltedpp)(unsigned long newpp, unsigned long ea, int psize, int ssize); long (*hpte_insert)(unsigned long hpte_group, - unsigned long va, + unsigned long vpn, unsigned long prpn, unsigned long rflags, unsigned long vflags, @@ -180,7 +180,8 @@ struct machdep_calls { void (*enable_pmcs)(void); /* Set DABR for this platform, leave empty for default implemenation */ - int (*set_dabr)(unsigned long dabr); + int (*set_dabr)(unsigned long dabr, + unsigned long dabrx); #ifdef CONFIG_PPC32 /* XXX for now */ /* A general init function, called by ppc_init in init/main.c. diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h index 1c65a59..9673f73 100644 --- a/arch/powerpc/include/asm/mmu-hash64.h +++ b/arch/powerpc/include/asm/mmu-hash64.h @@ -16,6 +16,13 @@ #include <asm/page.h> /* + * This is necessary to get the definition of PGTABLE_RANGE which we + * need for various slices related matters. Note that this isn't the + * complete pgtable.h but only a portion of it. + */ +#include <asm/pgtable-ppc64.h> + +/* * Segment table */ @@ -154,9 +161,25 @@ struct mmu_psize_def #define MMU_SEGSIZE_256M 0 #define MMU_SEGSIZE_1T 1 +/* + * encode page number shift. + * in order to fit the 78 bit va in a 64 bit variable we shift the va by + * 12 bits. This enable us to address upto 76 bit va. + * For hpt hash from a va we can ignore the page size bits of va and for + * hpte encoding we ignore up to 23 bits of va. So ignoring lower 12 bits ensure + * we work in all cases including 4k page size. + */ +#define VPN_SHIFT 12 #ifndef __ASSEMBLY__ +static inline int segment_shift(int ssize) +{ + if (ssize == MMU_SEGSIZE_256M) + return SID_SHIFT; + return SID_SHIFT_1T; +} + /* * The current system page and segment sizes */ @@ -180,18 +203,39 @@ extern unsigned long tce_alloc_start, tce_alloc_end; extern int mmu_ci_restrictions; /* + * This computes the AVPN and B fields of the first dword of a HPTE, + * for use when we want to match an existing PTE. The bottom 7 bits + * of the returned value are zero. + */ +static inline unsigned long hpte_encode_avpn(unsigned long vpn, int psize, + int ssize) +{ + unsigned long v; + /* + * The AVA field omits the low-order 23 bits of the 78 bits VA. + * These bits are not needed in the PTE, because the + * low-order b of these bits are part of the byte offset + * into the virtual page and, if b < 23, the high-order + * 23-b of these bits are always used in selecting the + * PTEGs to be searched + */ + v = (vpn >> (23 - VPN_SHIFT)) & ~(mmu_psize_defs[psize].avpnm); + v <<= HPTE_V_AVPN_SHIFT; + v |= ((unsigned long) ssize) << HPTE_V_SSIZE_SHIFT; + return v; +} + +/* * This function sets the AVPN and L fields of the HPTE appropriately * for the page size */ -static inline unsigned long hpte_encode_v(unsigned long va, int psize, - int ssize) +static inline unsigned long hpte_encode_v(unsigned long vpn, + int psize, int ssize) { unsigned long v; - v = (va >> 23) & ~(mmu_psize_defs[psize].avpnm); - v <<= HPTE_V_AVPN_SHIFT; + v = hpte_encode_avpn(vpn, psize, ssize); if (psize != MMU_PAGE_4K) v |= HPTE_V_LARGE; - v |= ((unsigned long) ssize) << HPTE_V_SSIZE_SHIFT; return v; } @@ -216,30 +260,37 @@ static inline unsigned long hpte_encode_r(unsigned long pa, int psize) } /* - * Build a VA given VSID, EA and segment size + * Build a VPN_SHIFT bit shifted va given VSID, EA and segment size. */ -static inline unsigned long hpt_va(unsigned long ea, unsigned long vsid, - int ssize) +static inline unsigned long hpt_vpn(unsigned long ea, + unsigned long vsid, int ssize) { - if (ssize == MMU_SEGSIZE_256M) - return (vsid << 28) | (ea & 0xfffffffUL); - return (vsid << 40) | (ea & 0xffffffffffUL); + unsigned long mask; + int s_shift = segment_shift(ssize); + + mask = (1ul << (s_shift - VPN_SHIFT)) - 1; + return (vsid << (s_shift - VPN_SHIFT)) | ((ea >> VPN_SHIFT) & mask); } /* * This hashes a virtual address */ - -static inline unsigned long hpt_hash(unsigned long va, unsigned int shift, - int ssize) +static inline unsigned long hpt_hash(unsigned long vpn, + unsigned int shift, int ssize) { + int mask; unsigned long hash, vsid; + /* VPN_SHIFT can be atmost 12 */ if (ssize == MMU_SEGSIZE_256M) { - hash = (va >> 28) ^ ((va & 0x0fffffffUL) >> shift); + mask = (1ul << (SID_SHIFT - VPN_SHIFT)) - 1; + hash = (vpn >> (SID_SHIFT - VPN_SHIFT)) ^ + ((vpn & mask) >> (shift - VPN_SHIFT)); } else { - vsid = va >> 40; - hash = vsid ^ (vsid << 25) ^ ((va & 0xffffffffffUL) >> shift); + mask = (1ul << (SID_SHIFT_1T - VPN_SHIFT)) - 1; + vsid = vpn >> (SID_SHIFT_1T - VPN_SHIFT); + hash = vsid ^ (vsid << 25) ^ + ((vpn & mask) >> (shift - VPN_SHIFT)) ; } return hash & 0x7fffffffffUL; } @@ -280,63 +331,61 @@ extern void slb_set_size(u16 size); #endif /* __ASSEMBLY__ */ /* - * VSID allocation + * VSID allocation (256MB segment) + * + * We first generate a 38-bit "proto-VSID". For kernel addresses this + * is equal to the ESID | 1 << 37, for user addresses it is: + * (context << USER_ESID_BITS) | (esid & ((1U << USER_ESID_BITS) - 1) * - * We first generate a 36-bit "proto-VSID". For kernel addresses this - * is equal to the ESID, for user addresses it is: - * (context << 15) | (esid & 0x7fff) + * This splits the proto-VSID into the below range + * 0 - (2^(CONTEXT_BITS + USER_ESID_BITS) - 1) : User proto-VSID range + * 2^(CONTEXT_BITS + USER_ESID_BITS) - 2^(VSID_BITS) : Kernel proto-VSID range * - * The two forms are distinguishable because the top bit is 0 for user - * addresses, whereas the top two bits are 1 for kernel addresses. - * Proto-VSIDs with the top two bits equal to 0b10 are reserved for - * now. + * We also have CONTEXT_BITS + USER_ESID_BITS = VSID_BITS - 1 + * That is, we assign half of the space to user processes and half + * to the kernel. * * The proto-VSIDs are then scrambled into real VSIDs with the * multiplicative hash: * * VSID = (proto-VSID * VSID_MULTIPLIER) % VSID_MODULUS - * where VSID_MULTIPLIER = 268435399 = 0xFFFFFC7 - * VSID_MODULUS = 2^36-1 = 0xFFFFFFFFF * - * This scramble is only well defined for proto-VSIDs below - * 0xFFFFFFFFF, so both proto-VSID and actual VSID 0xFFFFFFFFF are - * reserved. VSID_MULTIPLIER is prime, so in particular it is + * VSID_MULTIPLIER is prime, so in particular it is * co-prime to VSID_MODULUS, making this a 1:1 scrambling function. * Because the modulus is 2^n-1 we can compute it efficiently without * a divide or extra multiply (see below). * * This scheme has several advantages over older methods: * - * - We have VSIDs allocated for every kernel address + * - We have VSIDs allocated for every kernel address * (i.e. everything above 0xC000000000000000), except the very top * segment, which simplifies several things. * - * - We allow for 16 significant bits of ESID and 19 bits of - * context for user addresses. i.e. 16T (44 bits) of address space for - * up to half a million contexts. + * - We allow for USER_ESID_BITS significant bits of ESID and + * CONTEXT_BITS bits of context for user addresses. + * i.e. 64T (46 bits) of address space for up to half a million contexts. * - * - The scramble function gives robust scattering in the hash + * - The scramble function gives robust scattering in the hash * table (at least based on some initial results). The previous * method was more susceptible to pathological cases giving excessive * hash collisions. */ + /* - * WARNING - If you change these you must make sure the asm - * implementations in slb_allocate (slb_low.S), do_stab_bolted - * (head.S) and ASM_VSID_SCRAMBLE (below) are changed accordingly. + * This should be computed such that protovosid * vsid_mulitplier + * doesn't overflow 64 bits. It should also be co-prime to vsid_modulus */ - -#define VSID_MULTIPLIER_256M ASM_CONST(200730139) /* 28-bit prime */ -#define VSID_BITS_256M 36 +#define VSID_MULTIPLIER_256M ASM_CONST(12538073) /* 24-bit prime */ +#define VSID_BITS_256M 38 #define VSID_MODULUS_256M ((1UL<<VSID_BITS_256M)-1) #define VSID_MULTIPLIER_1T ASM_CONST(12538073) /* 24-bit prime */ -#define VSID_BITS_1T 24 +#define VSID_BITS_1T 26 #define VSID_MODULUS_1T ((1UL<<VSID_BITS_1T)-1) #define CONTEXT_BITS 19 -#define USER_ESID_BITS 16 -#define USER_ESID_BITS_1T 4 +#define USER_ESID_BITS 18 +#define USER_ESID_BITS_1T 6 #define USER_VSID_RANGE (1UL << (USER_ESID_BITS + SID_SHIFT)) @@ -372,6 +421,8 @@ extern void slb_set_size(u16 size); srdi rx,rx,VSID_BITS_##size; /* extract 2^VSID_BITS bit */ \ add rt,rt,rx +/* 4 bits per slice and we have one slice per 1TB */ +#define SLICE_ARRAY_SIZE (PGTABLE_RANGE >> 41) #ifndef __ASSEMBLY__ @@ -416,7 +467,7 @@ typedef struct { #ifdef CONFIG_PPC_MM_SLICES u64 low_slices_psize; /* SLB page size encodings */ - u64 high_slices_psize; /* 4 bits per slice for now */ + unsigned char high_slices_psize[SLICE_ARRAY_SIZE]; #else u16 sllp; /* SLB page size encoding */ #endif @@ -452,12 +503,32 @@ typedef struct { }) #endif /* 1 */ -/* This is only valid for addresses >= PAGE_OFFSET */ +/* + * This is only valid for addresses >= PAGE_OFFSET + * The proto-VSID space is divided into two class + * User: 0 to 2^(CONTEXT_BITS + USER_ESID_BITS) -1 + * kernel: 2^(CONTEXT_BITS + USER_ESID_BITS) to 2^(VSID_BITS) - 1 + * + * With KERNEL_START at 0xc000000000000000, the proto vsid for + * the kernel ends up with 0xc00000000 (36 bits). With 64TB + * support we need to have kernel proto-VSID in the + * [2^37 to 2^38 - 1] range due to the increased USER_ESID_BITS. + */ static inline unsigned long get_kernel_vsid(unsigned long ea, int ssize) { - if (ssize == MMU_SEGSIZE_256M) - return vsid_scramble(ea >> SID_SHIFT, 256M); - return vsid_scramble(ea >> SID_SHIFT_1T, 1T); + unsigned long proto_vsid; + /* + * We need to make sure proto_vsid for the kernel is + * >= 2^(CONTEXT_BITS + USER_ESID_BITS[_1T]) + */ + if (ssize == MMU_SEGSIZE_256M) { + proto_vsid = ea >> SID_SHIFT; + proto_vsid |= (1UL << (CONTEXT_BITS + USER_ESID_BITS)); + return vsid_scramble(proto_vsid, 256M); + } + proto_vsid = ea >> SID_SHIFT_1T; + proto_vsid |= (1UL << (CONTEXT_BITS + USER_ESID_BITS_1T)); + return vsid_scramble(proto_vsid, 1T); } /* Returns the segment size indicator for a user address */ diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index e8a26db2..5e38eed 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -146,6 +146,15 @@ extern void setup_initial_memory_limit(phys_addr_t first_memblock_base, extern u64 ppc64_rma_size; #endif /* CONFIG_PPC64 */ +struct mm_struct; +#ifdef CONFIG_DEBUG_VM +extern void assert_pte_locked(struct mm_struct *mm, unsigned long addr); +#else /* CONFIG_DEBUG_VM */ +static inline void assert_pte_locked(struct mm_struct *mm, unsigned long addr) +{ +} +#endif /* !CONFIG_DEBUG_VM */ + #endif /* !__ASSEMBLY__ */ /* The kernel use the constants below to index in the page sizes array. diff --git a/arch/powerpc/include/asm/mpc52xx.h b/arch/powerpc/include/asm/mpc52xx.h index 1f41382..0acc7c7c 100644 --- a/arch/powerpc/include/asm/mpc52xx.h +++ b/arch/powerpc/include/asm/mpc52xx.h @@ -307,6 +307,7 @@ struct mpc52xx_lpbfifo_request { size_t size; size_t pos; /* current position of transfer */ int flags; + int defer_xfer_start; /* What to do when finished */ void (*callback)(struct mpc52xx_lpbfifo_request *); @@ -323,6 +324,7 @@ struct mpc52xx_lpbfifo_request { extern int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req); extern void mpc52xx_lpbfifo_abort(struct mpc52xx_lpbfifo_request *req); extern void mpc52xx_lpbfifo_poll(void); +extern int mpc52xx_lpbfifo_start_xfer(struct mpc52xx_lpbfifo_request *req); /* mpc52xx_pic.c */ extern void mpc52xx_init_irq(void); diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h index c9f698a..c0f9ef9 100644 --- a/arch/powerpc/include/asm/mpic.h +++ b/arch/powerpc/include/asm/mpic.h @@ -63,6 +63,7 @@ */ #define MPIC_TIMER_BASE 0x01100 #define MPIC_TIMER_STRIDE 0x40 +#define MPIC_TIMER_GROUP_STRIDE 0x1000 #define MPIC_TIMER_CURRENT_CNT 0x00000 #define MPIC_TIMER_BASE_CNT 0x00010 @@ -110,10 +111,16 @@ #define MPIC_VECPRI_SENSE_MASK 0x00400000 #define MPIC_IRQ_DESTINATION 0x00010 +#define MPIC_FSL_BRR1 0x00000 +#define MPIC_FSL_BRR1_VER 0x0000ffff + #define MPIC_MAX_IRQ_SOURCES 2048 #define MPIC_MAX_CPUS 32 #define MPIC_MAX_ISU 32 +#define MPIC_MAX_ERR 32 +#define MPIC_FSL_ERR_INT 16 + /* * Tsi108 implementation of MPIC has many differences from the original one */ @@ -266,6 +273,7 @@ struct mpic struct irq_chip hc_ipi; #endif struct irq_chip hc_tm; + struct irq_chip hc_err; const char *name; /* Flags */ unsigned int flags; @@ -279,6 +287,8 @@ struct mpic /* vector numbers used for internal sources (ipi/timers) */ unsigned int ipi_vecs[4]; unsigned int timer_vecs[8]; + /* vector numbers used for FSL MPIC error interrupts */ + unsigned int err_int_vecs[MPIC_MAX_ERR]; /* Spurious vector to program into unused sources */ unsigned int spurious_vec; @@ -296,11 +306,15 @@ struct mpic phys_addr_t paddr; /* The various ioremap'ed bases */ + struct mpic_reg_bank thiscpuregs; struct mpic_reg_bank gregs; struct mpic_reg_bank tmregs; struct mpic_reg_bank cpuregs[MPIC_MAX_CPUS]; struct mpic_reg_bank isus[MPIC_MAX_ISU]; + /* ioremap'ed base for error interrupt registers */ + u32 __iomem *err_regs; + /* Protected sources */ unsigned long *protected; @@ -365,6 +379,11 @@ struct mpic #define MPIC_NO_RESET 0x00004000 /* Freescale MPIC (compatible includes "fsl,mpic") */ #define MPIC_FSL 0x00008000 +/* Freescale MPIC supports EIMR (error interrupt mask register). + * This flag is set for MPIC version >= 4.1 (version determined + * from the BRR1 register). +*/ +#define MPIC_FSL_HAS_EIMR 0x00010000 /* MPIC HW modification ID */ #define MPIC_REGSET_MASK 0xf0000000 diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index daf813f..e9e7a69 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -100,7 +100,7 @@ struct paca_struct { /* SLB related definitions */ u16 vmalloc_sllp; u16 slb_cache_ptr; - u16 slb_cache[SLB_CACHE_ENTRIES]; + u32 slb_cache[SLB_CACHE_ENTRIES]; #endif /* CONFIG_PPC_STD_MMU_64 */ #ifdef CONFIG_PPC_BOOK3E @@ -136,6 +136,7 @@ struct paca_struct { u8 io_sync; /* writel() needs spin_unlock sync */ u8 irq_work_pending; /* IRQ_WORK interrupt while soft-disable */ u8 nap_state_lost; /* NV GPR values lost in power7_idle */ + u64 sprg3; /* Saved user-visible sprg */ #ifdef CONFIG_PPC_POWERNV /* Pointer to OPAL machine check event structure set by the diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h index fed85e6..cd915d6 100644 --- a/arch/powerpc/include/asm/page_64.h +++ b/arch/powerpc/include/asm/page_64.h @@ -78,11 +78,19 @@ extern u64 ppc64_pft_size; #define GET_LOW_SLICE_INDEX(addr) ((addr) >> SLICE_LOW_SHIFT) #define GET_HIGH_SLICE_INDEX(addr) ((addr) >> SLICE_HIGH_SHIFT) +/* + * 1 bit per slice and we have one slice per 1TB + * Right now we support only 64TB. + * IF we change this we will have to change the type + * of high_slices + */ +#define SLICE_MASK_SIZE 8 + #ifndef __ASSEMBLY__ struct slice_mask { u16 low_slices; - u16 high_slices; + u64 high_slices; }; struct mm_struct; diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 8cccbee..025a130 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -182,14 +182,25 @@ static inline int pci_device_from_OF_node(struct device_node *np, #if defined(CONFIG_EEH) static inline struct eeh_dev *of_node_to_eeh_dev(struct device_node *dn) { + /* + * For those OF nodes whose parent isn't PCI bridge, they + * don't have PCI_DN actually. So we have to skip them for + * any EEH operations. + */ + if (!dn || !PCI_DN(dn)) + return NULL; + return PCI_DN(dn)->edev; } +#else +#define of_node_to_eeh_dev(x) (NULL) #endif /** Find the bus corresponding to the indicated device node */ extern struct pci_bus *pcibios_find_pci_bus(struct device_node *dn); /** Remove all of the PCI devices under this bus */ +extern void __pcibios_remove_pci_devices(struct pci_bus *bus, int purge_pe); extern void pcibios_remove_pci_devices(struct pci_bus *bus); /** Discover new pci devices under this bus, and add them */ diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h index 078019b..9710be3 100644 --- a/arch/powerpc/include/asm/perf_event_server.h +++ b/arch/powerpc/include/asm/perf_event_server.h @@ -49,6 +49,7 @@ struct power_pmu { #define PPMU_ALT_SIPR 2 /* uses alternate posn for SIPR/HV */ #define PPMU_NO_SIPR 4 /* no SIPR/HV in MMCRA at all */ #define PPMU_NO_CONT_SAMPLING 8 /* no continuous sampling */ +#define PPMU_SIAR_VALID 16 /* Processor has SIAR Valid bit */ /* * Values for flags to get_alternatives() diff --git a/arch/powerpc/include/asm/pgtable-ppc64-4k.h b/arch/powerpc/include/asm/pgtable-ppc64-4k.h index 6eefdcf..12798c9 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64-4k.h +++ b/arch/powerpc/include/asm/pgtable-ppc64-4k.h @@ -7,7 +7,7 @@ */ #define PTE_INDEX_SIZE 9 #define PMD_INDEX_SIZE 7 -#define PUD_INDEX_SIZE 7 +#define PUD_INDEX_SIZE 9 #define PGD_INDEX_SIZE 9 #ifndef __ASSEMBLY__ @@ -19,7 +19,7 @@ #define PTRS_PER_PTE (1 << PTE_INDEX_SIZE) #define PTRS_PER_PMD (1 << PMD_INDEX_SIZE) -#define PTRS_PER_PUD (1 << PMD_INDEX_SIZE) +#define PTRS_PER_PUD (1 << PUD_INDEX_SIZE) #define PTRS_PER_PGD (1 << PGD_INDEX_SIZE) /* PMD_SHIFT determines what a second-level page table entry can map */ diff --git a/arch/powerpc/include/asm/pgtable-ppc64-64k.h b/arch/powerpc/include/asm/pgtable-ppc64-64k.h index 90533dd..be4e287 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64-64k.h +++ b/arch/powerpc/include/asm/pgtable-ppc64-64k.h @@ -7,7 +7,7 @@ #define PTE_INDEX_SIZE 12 #define PMD_INDEX_SIZE 12 #define PUD_INDEX_SIZE 0 -#define PGD_INDEX_SIZE 4 +#define PGD_INDEX_SIZE 6 #ifndef __ASSEMBLY__ #define PTE_TABLE_SIZE (sizeof(real_pte_t) << PTE_INDEX_SIZE) diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h index c420561..0182c20 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64.h +++ b/arch/powerpc/include/asm/pgtable-ppc64.h @@ -21,17 +21,6 @@ #define PGTABLE_RANGE (ASM_CONST(1) << PGTABLE_EADDR_SIZE) -/* Some sanity checking */ -#if TASK_SIZE_USER64 > PGTABLE_RANGE -#error TASK_SIZE_USER64 exceeds pagetable range -#endif - -#ifdef CONFIG_PPC_STD_MMU_64 -#if TASK_SIZE_USER64 > (1UL << (USER_ESID_BITS + SID_SHIFT)) -#error TASK_SIZE_USER64 exceeds user VSID range -#endif -#endif - /* * Define the address range of the kernel non-linear virtual area */ @@ -41,7 +30,7 @@ #else #define KERN_VIRT_START ASM_CONST(0xD000000000000000) #endif -#define KERN_VIRT_SIZE PGTABLE_RANGE +#define KERN_VIRT_SIZE ASM_CONST(0x0000100000000000) /* * The vmalloc space starts at the beginning of that region, and @@ -117,9 +106,6 @@ #ifndef __ASSEMBLY__ -#include <linux/stddef.h> -#include <asm/tlbflush.h> - /* * This is the default implementation of various PTE accessors, it's * used in all cases except Book3S with 64K pages where we have a @@ -198,7 +184,8 @@ /* to find an entry in a kernel page-table-directory */ /* This now only contains the vmalloc pages */ #define pgd_offset_k(address) pgd_offset(&init_mm, address) - +extern void hpte_need_flush(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, unsigned long pte, int huge); /* Atomic PTE updates */ static inline unsigned long pte_update(struct mm_struct *mm, diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index 2e0e411..a9cbd3b 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -9,14 +9,6 @@ struct mm_struct; -#ifdef CONFIG_DEBUG_VM -extern void assert_pte_locked(struct mm_struct *mm, unsigned long addr); -#else /* CONFIG_DEBUG_VM */ -static inline void assert_pte_locked(struct mm_struct *mm, unsigned long addr) -{ -} -#endif /* !CONFIG_DEBUG_VM */ - #endif /* !__ASSEMBLY__ */ #if defined(CONFIG_PPC64) @@ -27,6 +19,8 @@ static inline void assert_pte_locked(struct mm_struct *mm, unsigned long addr) #ifndef __ASSEMBLY__ +#include <asm/tlbflush.h> + /* Generic accessors to PTE bits */ static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; } static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index 4c25319..5f73ce6 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -126,6 +126,7 @@ #define PPC_INST_TLBIVAX 0x7c000624 #define PPC_INST_TLBSRX_DOT 0x7c0006a5 #define PPC_INST_XXLOR 0xf0000510 +#define PPC_INST_XVCPSGNDP 0xf0000780 #define PPC_INST_NAP 0x4c000364 #define PPC_INST_SLEEP 0x4c0003a4 @@ -277,6 +278,8 @@ VSX_XX1((s), a, b)) #define XXLOR(t, a, b) stringify_in_c(.long PPC_INST_XXLOR | \ VSX_XX3((t), a, b)) +#define XVCPSGNDP(t, a, b) stringify_in_c(.long (PPC_INST_XVCPSGNDP | \ + VSX_XX3((t), (a), (b)))) #define PPC_NAP stringify_in_c(.long PPC_INST_NAP) #define PPC_SLEEP stringify_in_c(.long PPC_INST_SLEEP) diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h index 80fa704..ed57fa7 100644 --- a/arch/powerpc/include/asm/ppc-pci.h +++ b/arch/powerpc/include/asm/ppc-pci.h @@ -47,19 +47,17 @@ extern int rtas_setup_phb(struct pci_controller *phb); #ifdef CONFIG_EEH -void pci_addr_cache_build(void); -void pci_addr_cache_insert_device(struct pci_dev *dev); -void pci_addr_cache_remove_device(struct pci_dev *dev); -struct pci_dev *pci_addr_cache_get_device(unsigned long addr); -void eeh_slot_error_detail(struct eeh_dev *edev, int severity); -int eeh_pci_enable(struct eeh_dev *edev, int function); -int eeh_reset_pe(struct eeh_dev *); -void eeh_restore_bars(struct eeh_dev *); +void eeh_addr_cache_insert_dev(struct pci_dev *dev); +void eeh_addr_cache_rmv_dev(struct pci_dev *dev); +struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr); +void eeh_slot_error_detail(struct eeh_pe *pe, int severity); +int eeh_pci_enable(struct eeh_pe *pe, int function); +int eeh_reset_pe(struct eeh_pe *); +void eeh_save_bars(struct eeh_dev *edev); int rtas_write_config(struct pci_dn *, int where, int size, u32 val); int rtas_read_config(struct pci_dn *, int where, int size, u32 *val); -void eeh_mark_slot(struct device_node *dn, int mode_flag); -void eeh_clear_slot(struct device_node *dn, int mode_flag); -struct device_node *eeh_find_device_pe(struct device_node *dn); +void eeh_pe_state_mark(struct eeh_pe *pe, int state); +void eeh_pe_state_clear(struct eeh_pe *pe, int state); void eeh_sysfs_add_device(struct pci_dev *pdev); void eeh_sysfs_remove_device(struct pci_dev *pdev); diff --git a/arch/powerpc/include/asm/probes.h b/arch/powerpc/include/asm/probes.h new file mode 100644 index 0000000..5f1e15b --- /dev/null +++ b/arch/powerpc/include/asm/probes.h @@ -0,0 +1,42 @@ +#ifndef _ASM_POWERPC_PROBES_H +#define _ASM_POWERPC_PROBES_H +#ifdef __KERNEL__ +/* + * Definitions common to probes files + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright IBM Corporation, 2012 + */ +#include <linux/types.h> + +typedef u32 ppc_opcode_t; +#define BREAKPOINT_INSTRUCTION 0x7fe00008 /* trap */ + +/* Trap definitions per ISA */ +#define IS_TW(instr) (((instr) & 0xfc0007fe) == 0x7c000008) +#define IS_TD(instr) (((instr) & 0xfc0007fe) == 0x7c000088) +#define IS_TDI(instr) (((instr) & 0xfc000000) == 0x08000000) +#define IS_TWI(instr) (((instr) & 0xfc000000) == 0x0c000000) + +#ifdef CONFIG_PPC64 +#define is_trap(instr) (IS_TW(instr) || IS_TD(instr) || \ + IS_TWI(instr) || IS_TDI(instr)) +#else +#define is_trap(instr) (IS_TW(instr) || IS_TWI(instr)) +#endif /* CONFIG_PPC64 */ + +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_PROBES_H */ diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 54b73a2..9dc5cd1 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -97,8 +97,8 @@ extern struct task_struct *last_task_used_spe; #endif #ifdef CONFIG_PPC64 -/* 64-bit user address space is 44-bits (16TB user VM) */ -#define TASK_SIZE_USER64 (0x0000100000000000UL) +/* 64-bit user address space is 46-bits (64TB user VM) */ +#define TASK_SIZE_USER64 (0x0000400000000000UL) /* * 32-bit user address space is 4GB - 1 page @@ -219,6 +219,8 @@ struct thread_struct { #endif /* CONFIG_HAVE_HW_BREAKPOINT */ #endif unsigned long dabr; /* Data address breakpoint register */ + unsigned long dabrx; /* ... extension */ + unsigned long trap_nr; /* last trap # on this thread */ #ifdef CONFIG_ALTIVEC /* Complete AltiVec register set */ vector128 vr[32] __attribute__((aligned(16))); diff --git a/arch/powerpc/include/asm/pte-hash64-64k.h b/arch/powerpc/include/asm/pte-hash64-64k.h index 59247e8..eedf427c9 100644 --- a/arch/powerpc/include/asm/pte-hash64-64k.h +++ b/arch/powerpc/include/asm/pte-hash64-64k.h @@ -58,14 +58,16 @@ /* Trick: we set __end to va + 64k, which happens works for * a 16M page as well as we want only one iteration */ -#define pte_iterate_hashed_subpages(rpte, psize, va, index, shift) \ - do { \ - unsigned long __end = va + PAGE_SIZE; \ - unsigned __split = (psize == MMU_PAGE_4K || \ - psize == MMU_PAGE_64K_AP); \ - shift = mmu_psize_defs[psize].shift; \ - for (index = 0; va < __end; index++, va += (1L << shift)) { \ - if (!__split || __rpte_sub_valid(rpte, index)) do { \ +#define pte_iterate_hashed_subpages(rpte, psize, vpn, index, shift) \ + do { \ + unsigned long __end = vpn + (1UL << (PAGE_SHIFT - VPN_SHIFT)); \ + unsigned __split = (psize == MMU_PAGE_4K || \ + psize == MMU_PAGE_64K_AP); \ + shift = mmu_psize_defs[psize].shift; \ + for (index = 0; vpn < __end; index++, \ + vpn += (1L << (shift - VPN_SHIFT))) { \ + if (!__split || __rpte_sub_valid(rpte, index)) \ + do { #define pte_iterate_hashed_end() } while(0); } } while(0) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 6386086..d24c141 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -208,6 +208,9 @@ #define SPRN_DABRX 0x3F7 /* Data Address Breakpoint Register Extension */ #define DABRX_USER (1UL << 0) #define DABRX_KERNEL (1UL << 1) +#define DABRX_HYP (1UL << 2) +#define DABRX_BTI (1UL << 3) +#define DABRX_ALL (DABRX_BTI | DABRX_HYP | DABRX_KERNEL | DABRX_USER) #define SPRN_DAR 0x013 /* Data Address Register */ #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ @@ -521,6 +524,7 @@ #define SPRN_HSRR0 0x13A /* Save/Restore Register 0 */ #define SPRN_HSRR1 0x13B /* Save/Restore Register 1 */ +#define HSRR1_DENORM 0x00100000 /* Denorm exception */ #define SPRN_TBCTL 0x35f /* PA6T Timebase control register */ #define TBCTL_FREEZE 0x0000000000000000ull /* Freeze all tbs */ @@ -602,6 +606,10 @@ #define POWER6_MMCRA_SIPR 0x0000020000000000ULL #define POWER6_MMCRA_THRM 0x00000020UL #define POWER6_MMCRA_OTHER 0x0000000EUL + +#define POWER7P_MMCRA_SIAR_VALID 0x10000000 /* P7+ SIAR contents valid */ +#define POWER7P_MMCRA_SDAR_VALID 0x08000000 /* P7+ SDAR contents valid */ + #define SPRN_PMC1 787 #define SPRN_PMC2 788 #define SPRN_PMC3 789 @@ -761,7 +769,8 @@ * 64-bit embedded * - SPRG0 generic exception scratch * - SPRG2 TLB exception stack - * - SPRG3 CPU and NUMA node for VDSO getcpu (user visible) + * - SPRG3 critical exception scratch and + * CPU and NUMA node for VDSO getcpu (user visible) * - SPRG4 unused (user visible) * - SPRG6 TLB miss scratch (user visible, sorry !) * - SPRG7 critical exception scratch @@ -858,11 +867,12 @@ #ifdef CONFIG_PPC_BOOK3E_64 #define SPRN_SPRG_MC_SCRATCH SPRN_SPRG8 -#define SPRN_SPRG_CRIT_SCRATCH SPRN_SPRG7 +#define SPRN_SPRG_CRIT_SCRATCH SPRN_SPRG3 #define SPRN_SPRG_DBG_SCRATCH SPRN_SPRG9 #define SPRN_SPRG_TLB_EXFRAME SPRN_SPRG2 #define SPRN_SPRG_TLB_SCRATCH SPRN_SPRG6 #define SPRN_SPRG_GEN_SCRATCH SPRN_SPRG0 +#define SPRN_SPRG_GDBELL_SCRATCH SPRN_SPRG_GEN_SCRATCH #define SET_PACA(rX) mtspr SPRN_SPRG_PACA,rX #define GET_PACA(rX) mfspr rX,SPRN_SPRG_PACA @@ -937,7 +947,7 @@ #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ #define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ -#define __is_processor(pv) (PVR_VER(mfspr(SPRN_PVR)) == (pv)) +#define pvr_version_is(pvr) (PVR_VER(mfspr(SPRN_PVR)) == (pvr)) /* * IBM has further subdivided the standard PowerPC 16-bit version and @@ -1002,25 +1012,25 @@ #define PVR_476_ISS 0x00052000 /* 64-bit processors */ -/* XXX the prefix should be PVR_, we'll do a global sweep to fix it one day */ -#define PV_NORTHSTAR 0x0033 -#define PV_PULSAR 0x0034 -#define PV_POWER4 0x0035 -#define PV_ICESTAR 0x0036 -#define PV_SSTAR 0x0037 -#define PV_POWER4p 0x0038 -#define PV_970 0x0039 -#define PV_POWER5 0x003A -#define PV_POWER5p 0x003B -#define PV_970FX 0x003C -#define PV_POWER6 0x003E -#define PV_POWER7 0x003F -#define PV_630 0x0040 -#define PV_630p 0x0041 -#define PV_970MP 0x0044 -#define PV_970GX 0x0045 -#define PV_BE 0x0070 -#define PV_PA6T 0x0090 +#define PVR_NORTHSTAR 0x0033 +#define PVR_PULSAR 0x0034 +#define PVR_POWER4 0x0035 +#define PVR_ICESTAR 0x0036 +#define PVR_SSTAR 0x0037 +#define PVR_POWER4p 0x0038 +#define PVR_970 0x0039 +#define PVR_POWER5 0x003A +#define PVR_POWER5p 0x003B +#define PVR_970FX 0x003C +#define PVR_POWER6 0x003E +#define PVR_POWER7 0x003F +#define PVR_630 0x0040 +#define PVR_630p 0x0041 +#define PVR_970MP 0x0044 +#define PVR_970GX 0x0045 +#define PVR_POWER7p 0x004A +#define PVR_BE 0x0070 +#define PVR_PA6T 0x0090 /* Macros for setting and retrieving special purpose registers */ #ifndef __ASSEMBLY__ diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h index d084ce1..8b9a306 100644 --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -9,7 +9,7 @@ extern void ppc_printk_progress(char *s, unsigned short hex); extern unsigned int rtas_data; extern int mem_init_done; /* set on boot once kmalloc can be called */ extern int init_bootmem_done; /* set once bootmem is available */ -extern phys_addr_t memory_limit; +extern unsigned long long memory_limit; extern unsigned long klimit; extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask); diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index ebc24dc..e807e9d 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -65,6 +65,7 @@ int generic_cpu_disable(void); void generic_cpu_die(unsigned int cpu); void generic_mach_cpu_die(void); void generic_set_cpu_dead(unsigned int cpu); +void generic_set_cpu_up(unsigned int cpu); int generic_check_cpu_restart(unsigned int cpu); #endif @@ -190,6 +191,7 @@ extern unsigned long __secondary_hold_spinloop; extern unsigned long __secondary_hold_acknowledge; extern char __secondary_hold; +extern void __early_start(void); #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ diff --git a/arch/powerpc/include/asm/sparsemem.h b/arch/powerpc/include/asm/sparsemem.h index 0c5fa31..f6fc0ee 100644 --- a/arch/powerpc/include/asm/sparsemem.h +++ b/arch/powerpc/include/asm/sparsemem.h @@ -10,8 +10,8 @@ */ #define SECTION_SIZE_BITS 24 -#define MAX_PHYSADDR_BITS 44 -#define MAX_PHYSMEM_BITS 44 +#define MAX_PHYSADDR_BITS 46 +#define MAX_PHYSMEM_BITS 46 #endif /* CONFIG_SPARSEMEM */ diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h index 8979d4c..de99d6e 100644 --- a/arch/powerpc/include/asm/swiotlb.h +++ b/arch/powerpc/include/asm/swiotlb.h @@ -22,4 +22,10 @@ int __init swiotlb_setup_bus_notifier(void); extern void pci_dma_dev_setup_swiotlb(struct pci_dev *pdev); +#ifdef CONFIG_SWIOTLB +void swiotlb_detect_4g(void); +#else +static inline void swiotlb_detect_4g(void) {} +#endif + #endif /* __ASM_SWIOTLB_H */ diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index faf9352..8ceea14 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -102,7 +102,10 @@ static inline struct thread_info *current_thread_info(void) #define TIF_RESTOREALL 11 /* Restore all regs (implies NOERROR) */ #define TIF_NOERROR 12 /* Force successful syscall return */ #define TIF_NOTIFY_RESUME 13 /* callback before returning to user */ +#define TIF_UPROBE 14 /* breakpointed or single-stepping */ #define TIF_SYSCALL_TRACEPOINT 15 /* syscall tracepoint instrumentation */ +#define TIF_EMULATE_STACK_STORE 16 /* Is an instruction emulation + for stack store? */ /* as above, but as bit values */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) @@ -118,12 +121,14 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_RESTOREALL (1<<TIF_RESTOREALL) #define _TIF_NOERROR (1<<TIF_NOERROR) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) +#define _TIF_UPROBE (1<<TIF_UPROBE) #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) +#define _TIF_EMULATE_STACK_STORE (1<<TIF_EMULATE_STACK_STORE) #define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ - _TIF_NOTIFY_RESUME) + _TIF_NOTIFY_RESUME | _TIF_UPROBE) #define _TIF_PERSYSCALL_MASK (_TIF_RESTOREALL|_TIF_NOERROR) /* Bits in local_flags */ diff --git a/arch/powerpc/include/asm/tlbflush.h b/arch/powerpc/include/asm/tlbflush.h index 81143fc..61a5927 100644 --- a/arch/powerpc/include/asm/tlbflush.h +++ b/arch/powerpc/include/asm/tlbflush.h @@ -95,7 +95,7 @@ struct ppc64_tlb_batch { unsigned long index; struct mm_struct *mm; real_pte_t pte[PPC64_TLB_BATCH_NR]; - unsigned long vaddr[PPC64_TLB_BATCH_NR]; + unsigned long vpn[PPC64_TLB_BATCH_NR]; unsigned int psize; int ssize; }; @@ -103,9 +103,6 @@ DECLARE_PER_CPU(struct ppc64_tlb_batch, ppc64_tlb_batch); extern void __flush_tlb_pending(struct ppc64_tlb_batch *batch); -extern void hpte_need_flush(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, unsigned long pte, int huge); - #define __HAVE_ARCH_ENTER_LAZY_MMU_MODE static inline void arch_enter_lazy_mmu_mode(void) @@ -127,7 +124,7 @@ static inline void arch_leave_lazy_mmu_mode(void) #define arch_flush_lazy_mmu_mode() do {} while (0) -extern void flush_hash_page(unsigned long va, real_pte_t pte, int psize, +extern void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize, int ssize, int local); extern void flush_hash_range(unsigned long number, int local); diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index 17bb40c..4db49590 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -98,11 +98,6 @@ struct exception_table_entry { * PowerPC, we can just do these as direct assignments. (Of course, the * exception handling means that it's no longer "just"...) * - * The "user64" versions of the user access functions are versions that - * allow access of 64-bit data. The "get_user" functions do not - * properly handle 64-bit data because the value gets down cast to a long. - * The "put_user" functions already handle 64-bit data properly but we add - * "user64" versions for completeness */ #define get_user(x, ptr) \ __get_user_check((x), (ptr), sizeof(*(ptr))) @@ -114,12 +109,6 @@ struct exception_table_entry { #define __put_user(x, ptr) \ __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) -#ifndef __powerpc64__ -#define __get_user64(x, ptr) \ - __get_user64_nocheck((x), (ptr), sizeof(*(ptr))) -#define __put_user64(x, ptr) __put_user(x, ptr) -#endif - #define __get_user_inatomic(x, ptr) \ __get_user_nosleep((x), (ptr), sizeof(*(ptr))) #define __put_user_inatomic(x, ptr) \ diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h new file mode 100644 index 0000000..b532060 --- /dev/null +++ b/arch/powerpc/include/asm/uprobes.h @@ -0,0 +1,54 @@ +#ifndef _ASM_UPROBES_H +#define _ASM_UPROBES_H +/* + * User-space Probes (UProbes) for powerpc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright IBM Corporation, 2007-2012 + * + * Adapted from the x86 port by Ananth N Mavinakayanahalli <ananth@in.ibm.com> + */ + +#include <linux/notifier.h> +#include <asm/probes.h> + +typedef ppc_opcode_t uprobe_opcode_t; + +#define MAX_UINSN_BYTES 4 +#define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES) + +/* The following alias is needed for reference from arch-agnostic code */ +#define UPROBE_SWBP_INSN BREAKPOINT_INSTRUCTION +#define UPROBE_SWBP_INSN_SIZE 4 /* swbp insn size in bytes */ + +struct arch_uprobe { + union { + u8 insn[MAX_UINSN_BYTES]; + u32 ainsn; + }; +}; + +struct arch_uprobe_task { + unsigned long saved_trap_nr; +}; + +extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); +extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); +extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); +extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); +extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); +extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); +#endif /* _ASM_UPROBES_H */ diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index bb282dd..cde12f8 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -96,6 +96,7 @@ obj-$(CONFIG_MODULES) += ppc_ksyms.o obj-$(CONFIG_BOOTX_TEXT) += btext.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_KPROBES) += kprobes.o +obj-$(CONFIG_UPROBES) += uprobes.o obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_SWIOTLB) += dma-swiotlb.o diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index e899572..7523539 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -206,6 +206,7 @@ int main(void) DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time)); DEFINE(PACA_TRAP_SAVE, offsetof(struct paca_struct, trap_save)); DEFINE(PACA_NAPSTATELOST, offsetof(struct paca_struct, nap_state_lost)); + DEFINE(PACA_SPRG3, offsetof(struct paca_struct, sprg3)); #endif /* CONFIG_PPC64 */ /* RTAS */ @@ -534,7 +535,6 @@ int main(void) HSTATE_FIELD(HSTATE_VMHANDLER, vmhandler); HSTATE_FIELD(HSTATE_SCRATCH0, scratch0); HSTATE_FIELD(HSTATE_SCRATCH1, scratch1); - HSTATE_FIELD(HSTATE_SPRG3, sprg3); HSTATE_FIELD(HSTATE_IN_GUEST, in_guest); HSTATE_FIELD(HSTATE_RESTORE_HID5, restore_hid5); HSTATE_FIELD(HSTATE_NAPPING, napping); diff --git a/arch/powerpc/kernel/cpu_setup_fsl_booke.S b/arch/powerpc/kernel/cpu_setup_fsl_booke.S index 69fdd23..dcd8819 100644 --- a/arch/powerpc/kernel/cpu_setup_fsl_booke.S +++ b/arch/powerpc/kernel/cpu_setup_fsl_booke.S @@ -16,6 +16,8 @@ #include <asm/processor.h> #include <asm/cputable.h> #include <asm/ppc_asm.h> +#include <asm/mmu-book3e.h> +#include <asm/asm-offsets.h> _GLOBAL(__e500_icache_setup) mfspr r0, SPRN_L1CSR1 @@ -73,27 +75,81 @@ _GLOBAL(__setup_cpu_e500v2) mtlr r4 blr _GLOBAL(__setup_cpu_e500mc) - mr r5, r4 - mflr r4 +_GLOBAL(__setup_cpu_e5500) + mflr r5 bl __e500_icache_setup bl __e500_dcache_setup bl __setup_e500mc_ivors - mtlr r4 + /* + * We only want to touch IVOR38-41 if we're running on hardware + * that supports category E.HV. The architectural way to determine + * this is MMUCFG[LPIDSIZE]. + */ + mfspr r3, SPRN_MMUCFG + rlwinm. r3, r3, 0, MMUCFG_LPIDSIZE + beq 1f + bl __setup_ehv_ivors + b 2f +1: + lwz r3, CPU_SPEC_FEATURES(r4) + /* We need this check as cpu_setup is also called for + * the secondary cores. So, if we have already cleared + * the feature on the primary core, avoid doing it on the + * secondary core. + */ + andis. r6, r3, CPU_FTR_EMB_HV@h + beq 2f + rlwinm r3, r3, 0, ~CPU_FTR_EMB_HV + stw r3, CPU_SPEC_FEATURES(r4) +2: + mtlr r5 blr #endif -/* Right now, restore and setup are the same thing */ + +#ifdef CONFIG_PPC_BOOK3E_64 _GLOBAL(__restore_cpu_e5500) -_GLOBAL(__setup_cpu_e5500) mflr r4 bl __e500_icache_setup bl __e500_dcache_setup -#ifdef CONFIG_PPC_BOOK3E_64 bl .__setup_base_ivors bl .setup_perfmon_ivor bl .setup_doorbell_ivors + /* + * We only want to touch IVOR38-41 if we're running on hardware + * that supports category E.HV. The architectural way to determine + * this is MMUCFG[LPIDSIZE]. + */ + mfspr r10,SPRN_MMUCFG + rlwinm. r10,r10,0,MMUCFG_LPIDSIZE + beq 1f bl .setup_ehv_ivors -#else - bl __setup_e500mc_ivors -#endif +1: mtlr r4 blr + +_GLOBAL(__setup_cpu_e5500) + mflr r5 + bl __e500_icache_setup + bl __e500_dcache_setup + bl .__setup_base_ivors + bl .setup_perfmon_ivor + bl .setup_doorbell_ivors + /* + * We only want to touch IVOR38-41 if we're running on hardware + * that supports category E.HV. The architectural way to determine + * this is MMUCFG[LPIDSIZE]. + */ + mfspr r10,SPRN_MMUCFG + rlwinm. r10,r10,0,MMUCFG_LPIDSIZE + beq 1f + bl .setup_ehv_ivors + b 2f +1: + ld r10,CPU_SPEC_FEATURES(r4) + LOAD_REG_IMMEDIATE(r9,CPU_FTR_EMB_HV) + andc r10,r10,r9 + std r10,CPU_SPEC_FEATURES(r4) +2: + mtlr r5 + blr +#endif diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 455faa3..0514c21 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -2016,7 +2016,9 @@ static struct cpu_spec __initdata cpu_specs[] = { .oprofile_cpu_type = "ppc/e500mc", .oprofile_type = PPC_OPROFILE_FSL_EMB, .cpu_setup = __setup_cpu_e5500, +#ifndef CONFIG_PPC32 .cpu_restore = __restore_cpu_e5500, +#endif .machine_check = machine_check_e500mc, .platform = "ppce5500", }, @@ -2034,7 +2036,9 @@ static struct cpu_spec __initdata cpu_specs[] = { .oprofile_cpu_type = "ppc/e6500", .oprofile_type = PPC_OPROFILE_FSL_EMB, .cpu_setup = __setup_cpu_e5500, +#ifndef CONFIG_PPC32 .cpu_restore = __restore_cpu_e5500, +#endif .machine_check = machine_check_e500mc, .platform = "ppce6500", }, diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c index 4694365..bd1a2ab 100644 --- a/arch/powerpc/kernel/dma-swiotlb.c +++ b/arch/powerpc/kernel/dma-swiotlb.c @@ -12,6 +12,7 @@ */ #include <linux/dma-mapping.h> +#include <linux/memblock.h> #include <linux/pfn.h> #include <linux/of_platform.h> #include <linux/platform_device.h> @@ -20,7 +21,6 @@ #include <asm/machdep.h> #include <asm/swiotlb.h> #include <asm/dma.h> -#include <asm/abs_addr.h> unsigned int ppc_swiotlb_enable; @@ -105,3 +105,23 @@ int __init swiotlb_setup_bus_notifier(void) &ppc_swiotlb_plat_bus_notifier); return 0; } + +void swiotlb_detect_4g(void) +{ + if ((memblock_end_of_DRAM() - 1) > 0xffffffff) + ppc_swiotlb_enable = 1; +} + +static int __init swiotlb_late_init(void) +{ + if (ppc_swiotlb_enable) { + swiotlb_print_info(); + set_pci_dma_ops(&swiotlb_dma_ops); + ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; + } else { + swiotlb_free(); + } + + return 0; +} +subsys_initcall(swiotlb_late_init); diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index 355b9d8..8032b97 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -14,7 +14,6 @@ #include <linux/pci.h> #include <asm/vio.h> #include <asm/bug.h> -#include <asm/abs_addr.h> #include <asm/machdep.h> /* @@ -50,7 +49,7 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size, return NULL; ret = page_address(page); memset(ret, 0, size); - *dma_handle = virt_to_abs(ret) + get_dma_offset(dev); + *dma_handle = __pa(ret) + get_dma_offset(dev); return ret; #endif diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index ead5016..af37528 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -831,19 +831,56 @@ restore_user: bnel- load_dbcr0 #endif -#ifdef CONFIG_PREEMPT b restore /* N.B. the only way to get here is from the beq following ret_from_except. */ resume_kernel: - /* check current_thread_info->preempt_count */ + /* check current_thread_info, _TIF_EMULATE_STACK_STORE */ CURRENT_THREAD_INFO(r9, r1) + lwz r8,TI_FLAGS(r9) + andis. r8,r8,_TIF_EMULATE_STACK_STORE@h + beq+ 1f + + addi r8,r1,INT_FRAME_SIZE /* Get the kprobed function entry */ + + lwz r3,GPR1(r1) + subi r3,r3,INT_FRAME_SIZE /* dst: Allocate a trampoline exception frame */ + mr r4,r1 /* src: current exception frame */ + mr r1,r3 /* Reroute the trampoline frame to r1 */ + + /* Copy from the original to the trampoline. */ + li r5,INT_FRAME_SIZE/4 /* size: INT_FRAME_SIZE */ + li r6,0 /* start offset: 0 */ + mtctr r5 +2: lwzx r0,r6,r4 + stwx r0,r6,r3 + addi r6,r6,4 + bdnz 2b + + /* Do real store operation to complete stwu */ + lwz r5,GPR1(r1) + stw r8,0(r5) + + /* Clear _TIF_EMULATE_STACK_STORE flag */ + lis r11,_TIF_EMULATE_STACK_STORE@h + addi r5,r9,TI_FLAGS +0: lwarx r8,0,r5 + andc r8,r8,r11 +#ifdef CONFIG_IBM405_ERR77 + dcbt 0,r5 +#endif + stwcx. r8,0,r5 + bne- 0b +1: + +#ifdef CONFIG_PREEMPT + /* check current_thread_info->preempt_count */ lwz r0,TI_PREEMPT(r9) cmpwi 0,r0,0 /* if non-zero, just restore regs and return */ bne restore - lwz r0,TI_FLAGS(r9) - andi. r0,r0,_TIF_NEED_RESCHED + andi. r8,r8,_TIF_NEED_RESCHED beq+ restore + lwz r3,_MSR(r1) andi. r0,r3,MSR_EE /* interrupts off? */ beq restore /* don't schedule if so */ #ifdef CONFIG_TRACE_IRQFLAGS @@ -864,8 +901,6 @@ resume_kernel: */ bl trace_hardirqs_on #endif -#else -resume_kernel: #endif /* CONFIG_PREEMPT */ /* interrupts are hard-disabled at this point */ diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index b40e0b4..0e931aa 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -593,6 +593,41 @@ _GLOBAL(ret_from_except_lite) b .ret_from_except resume_kernel: + /* check current_thread_info, _TIF_EMULATE_STACK_STORE */ + CURRENT_THREAD_INFO(r9, r1) + ld r8,TI_FLAGS(r9) + andis. r8,r8,_TIF_EMULATE_STACK_STORE@h + beq+ 1f + + addi r8,r1,INT_FRAME_SIZE /* Get the kprobed function entry */ + + lwz r3,GPR1(r1) + subi r3,r3,INT_FRAME_SIZE /* dst: Allocate a trampoline exception frame */ + mr r4,r1 /* src: current exception frame */ + mr r1,r3 /* Reroute the trampoline frame to r1 */ + + /* Copy from the original to the trampoline. */ + li r5,INT_FRAME_SIZE/8 /* size: INT_FRAME_SIZE */ + li r6,0 /* start offset: 0 */ + mtctr r5 +2: ldx r0,r6,r4 + stdx r0,r6,r3 + addi r6,r6,8 + bdnz 2b + + /* Do real store operation to complete stwu */ + lwz r5,GPR1(r1) + std r8,0(r5) + + /* Clear _TIF_EMULATE_STACK_STORE flag */ + lis r11,_TIF_EMULATE_STACK_STORE@h + addi r5,r9,TI_FLAGS + ldarx r4,0,r5 + andc r4,r4,r11 + stdcx. r4,0,r5 + bne- 0b +1: + #ifdef CONFIG_PREEMPT /* Check if we need to preempt */ andi. r0,r4,_TIF_NEED_RESCHED diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 98be7f0..4684e33 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -25,6 +25,8 @@ #include <asm/ppc-opcode.h> #include <asm/mmu.h> #include <asm/hw_irq.h> +#include <asm/kvm_asm.h> +#include <asm/kvm_booke_hv_asm.h> /* XXX This will ultimately add space for a special exception save * structure used to save things like SRR0/SRR1, SPRGs, MAS, etc... @@ -35,16 +37,18 @@ #define SPECIAL_EXC_FRAME_SIZE INT_FRAME_SIZE /* Exception prolog code for all exceptions */ -#define EXCEPTION_PROLOG(n, type, addition) \ +#define EXCEPTION_PROLOG(n, intnum, type, addition) \ mtspr SPRN_SPRG_##type##_SCRATCH,r13; /* get spare registers */ \ mfspr r13,SPRN_SPRG_PACA; /* get PACA */ \ std r10,PACA_EX##type+EX_R10(r13); \ std r11,PACA_EX##type+EX_R11(r13); \ + PROLOG_STORE_RESTORE_SCRATCH_##type; \ mfcr r10; /* save CR */ \ + mfspr r11,SPRN_##type##_SRR1;/* what are we coming from */ \ + DO_KVM intnum,SPRN_##type##_SRR1; /* KVM hook */ \ + stw r10,PACA_EX##type+EX_CR(r13); /* save old CR in the PACA */ \ addition; /* additional code for that exc. */ \ std r1,PACA_EX##type+EX_R1(r13); /* save old r1 in the PACA */ \ - stw r10,PACA_EX##type+EX_CR(r13); /* save old CR in the PACA */ \ - mfspr r11,SPRN_##type##_SRR1;/* what are we coming from */ \ type##_SET_KSTACK; /* get special stack if necessary */\ andi. r10,r11,MSR_PR; /* save stack pointer */ \ beq 1f; /* branch around if supervisor */ \ @@ -59,6 +63,10 @@ #define SPRN_GEN_SRR0 SPRN_SRR0 #define SPRN_GEN_SRR1 SPRN_SRR1 +#define GDBELL_SET_KSTACK GEN_SET_KSTACK +#define SPRN_GDBELL_SRR0 SPRN_GSRR0 +#define SPRN_GDBELL_SRR1 SPRN_GSRR1 + #define CRIT_SET_KSTACK \ ld r1,PACA_CRIT_STACK(r13); \ subi r1,r1,SPECIAL_EXC_FRAME_SIZE; @@ -77,29 +85,46 @@ #define SPRN_MC_SRR0 SPRN_MCSRR0 #define SPRN_MC_SRR1 SPRN_MCSRR1 -#define NORMAL_EXCEPTION_PROLOG(n, addition) \ - EXCEPTION_PROLOG(n, GEN, addition##_GEN(n)) +#define NORMAL_EXCEPTION_PROLOG(n, intnum, addition) \ + EXCEPTION_PROLOG(n, intnum, GEN, addition##_GEN(n)) + +#define CRIT_EXCEPTION_PROLOG(n, intnum, addition) \ + EXCEPTION_PROLOG(n, intnum, CRIT, addition##_CRIT(n)) -#define CRIT_EXCEPTION_PROLOG(n, addition) \ - EXCEPTION_PROLOG(n, CRIT, addition##_CRIT(n)) +#define DBG_EXCEPTION_PROLOG(n, intnum, addition) \ + EXCEPTION_PROLOG(n, intnum, DBG, addition##_DBG(n)) -#define DBG_EXCEPTION_PROLOG(n, addition) \ - EXCEPTION_PROLOG(n, DBG, addition##_DBG(n)) +#define MC_EXCEPTION_PROLOG(n, intnum, addition) \ + EXCEPTION_PROLOG(n, intnum, MC, addition##_MC(n)) -#define MC_EXCEPTION_PROLOG(n, addition) \ - EXCEPTION_PROLOG(n, MC, addition##_MC(n)) +#define GDBELL_EXCEPTION_PROLOG(n, intnum, addition) \ + EXCEPTION_PROLOG(n, intnum, GDBELL, addition##_GDBELL(n)) +/* + * Store user-visible scratch in PACA exception slots and restore proper value + */ +#define PROLOG_STORE_RESTORE_SCRATCH_GEN +#define PROLOG_STORE_RESTORE_SCRATCH_GDBELL +#define PROLOG_STORE_RESTORE_SCRATCH_DBG +#define PROLOG_STORE_RESTORE_SCRATCH_MC + +#define PROLOG_STORE_RESTORE_SCRATCH_CRIT \ + mfspr r10,SPRN_SPRG_CRIT_SCRATCH; /* get r13 */ \ + std r10,PACA_EXCRIT+EX_R13(r13); \ + ld r11,PACA_SPRG3(r13); \ + mtspr SPRN_SPRG_CRIT_SCRATCH,r11; /* Variants of the "addition" argument for the prolog */ #define PROLOG_ADDITION_NONE_GEN(n) +#define PROLOG_ADDITION_NONE_GDBELL(n) #define PROLOG_ADDITION_NONE_CRIT(n) #define PROLOG_ADDITION_NONE_DBG(n) #define PROLOG_ADDITION_NONE_MC(n) #define PROLOG_ADDITION_MASKABLE_GEN(n) \ - lbz r11,PACASOFTIRQEN(r13); /* are irqs soft-disabled ? */ \ - cmpwi cr0,r11,0; /* yes -> go out of line */ \ + lbz r10,PACASOFTIRQEN(r13); /* are irqs soft-disabled ? */ \ + cmpwi cr0,r10,0; /* yes -> go out of line */ \ beq masked_interrupt_book3e_##n #define PROLOG_ADDITION_2REGS_GEN(n) \ @@ -233,9 +258,9 @@ exc_##n##_bad_stack: \ 1: -#define MASKABLE_EXCEPTION(trapnum, label, hdlr, ack) \ +#define MASKABLE_EXCEPTION(trapnum, intnum, label, hdlr, ack) \ START_EXCEPTION(label); \ - NORMAL_EXCEPTION_PROLOG(trapnum, PROLOG_ADDITION_MASKABLE) \ + NORMAL_EXCEPTION_PROLOG(trapnum, intnum, PROLOG_ADDITION_MASKABLE)\ EXCEPTION_COMMON(trapnum, PACA_EXGEN, INTS_DISABLE) \ ack(r8); \ CHECK_NAPPING(); \ @@ -286,7 +311,8 @@ interrupt_end_book3e: /* Critical Input Interrupt */ START_EXCEPTION(critical_input); - CRIT_EXCEPTION_PROLOG(0x100, PROLOG_ADDITION_NONE) + CRIT_EXCEPTION_PROLOG(0x100, BOOKE_INTERRUPT_CRITICAL, + PROLOG_ADDITION_NONE) // EXCEPTION_COMMON(0x100, PACA_EXCRIT, INTS_DISABLE) // bl special_reg_save_crit // CHECK_NAPPING(); @@ -297,7 +323,8 @@ interrupt_end_book3e: /* Machine Check Interrupt */ START_EXCEPTION(machine_check); - CRIT_EXCEPTION_PROLOG(0x200, PROLOG_ADDITION_NONE) + MC_EXCEPTION_PROLOG(0x200, BOOKE_INTERRUPT_MACHINE_CHECK, + PROLOG_ADDITION_NONE) // EXCEPTION_COMMON(0x200, PACA_EXMC, INTS_DISABLE) // bl special_reg_save_mc // addi r3,r1,STACK_FRAME_OVERHEAD @@ -308,7 +335,8 @@ interrupt_end_book3e: /* Data Storage Interrupt */ START_EXCEPTION(data_storage) - NORMAL_EXCEPTION_PROLOG(0x300, PROLOG_ADDITION_2REGS) + NORMAL_EXCEPTION_PROLOG(0x300, BOOKE_INTERRUPT_DATA_STORAGE, + PROLOG_ADDITION_2REGS) mfspr r14,SPRN_DEAR mfspr r15,SPRN_ESR EXCEPTION_COMMON(0x300, PACA_EXGEN, INTS_DISABLE) @@ -316,18 +344,21 @@ interrupt_end_book3e: /* Instruction Storage Interrupt */ START_EXCEPTION(instruction_storage); - NORMAL_EXCEPTION_PROLOG(0x400, PROLOG_ADDITION_2REGS) + NORMAL_EXCEPTION_PROLOG(0x400, BOOKE_INTERRUPT_INST_STORAGE, + PROLOG_ADDITION_2REGS) li r15,0 mr r14,r10 EXCEPTION_COMMON(0x400, PACA_EXGEN, INTS_DISABLE) b storage_fault_common /* External Input Interrupt */ - MASKABLE_EXCEPTION(0x500, external_input, .do_IRQ, ACK_NONE) + MASKABLE_EXCEPTION(0x500, BOOKE_INTERRUPT_EXTERNAL, + external_input, .do_IRQ, ACK_NONE) /* Alignment */ START_EXCEPTION(alignment); - NORMAL_EXCEPTION_PROLOG(0x600, PROLOG_ADDITION_2REGS) + NORMAL_EXCEPTION_PROLOG(0x600, BOOKE_INTERRUPT_ALIGNMENT, + PROLOG_ADDITION_2REGS) mfspr r14,SPRN_DEAR mfspr r15,SPRN_ESR EXCEPTION_COMMON(0x600, PACA_EXGEN, INTS_KEEP) @@ -335,7 +366,8 @@ interrupt_end_book3e: /* Program Interrupt */ START_EXCEPTION(program); - NORMAL_EXCEPTION_PROLOG(0x700, PROLOG_ADDITION_1REG) + NORMAL_EXCEPTION_PROLOG(0x700, BOOKE_INTERRUPT_PROGRAM, + PROLOG_ADDITION_1REG) mfspr r14,SPRN_ESR EXCEPTION_COMMON(0x700, PACA_EXGEN, INTS_DISABLE) std r14,_DSISR(r1) @@ -347,7 +379,8 @@ interrupt_end_book3e: /* Floating Point Unavailable Interrupt */ START_EXCEPTION(fp_unavailable); - NORMAL_EXCEPTION_PROLOG(0x800, PROLOG_ADDITION_NONE) + NORMAL_EXCEPTION_PROLOG(0x800, BOOKE_INTERRUPT_FP_UNAVAIL, + PROLOG_ADDITION_NONE) /* we can probably do a shorter exception entry for that one... */ EXCEPTION_COMMON(0x800, PACA_EXGEN, INTS_KEEP) ld r12,_MSR(r1) @@ -362,14 +395,17 @@ interrupt_end_book3e: b .ret_from_except /* Decrementer Interrupt */ - MASKABLE_EXCEPTION(0x900, decrementer, .timer_interrupt, ACK_DEC) + MASKABLE_EXCEPTION(0x900, BOOKE_INTERRUPT_DECREMENTER, + decrementer, .timer_interrupt, ACK_DEC) /* Fixed Interval Timer Interrupt */ - MASKABLE_EXCEPTION(0x980, fixed_interval, .unknown_exception, ACK_FIT) + MASKABLE_EXCEPTION(0x980, BOOKE_INTERRUPT_FIT, + fixed_interval, .unknown_exception, ACK_FIT) /* Watchdog Timer Interrupt */ START_EXCEPTION(watchdog); - CRIT_EXCEPTION_PROLOG(0x9f0, PROLOG_ADDITION_NONE) + CRIT_EXCEPTION_PROLOG(0x9f0, BOOKE_INTERRUPT_WATCHDOG, + PROLOG_ADDITION_NONE) // EXCEPTION_COMMON(0x9f0, PACA_EXCRIT, INTS_DISABLE) // bl special_reg_save_crit // CHECK_NAPPING(); @@ -388,7 +424,8 @@ interrupt_end_book3e: /* Auxiliary Processor Unavailable Interrupt */ START_EXCEPTION(ap_unavailable); - NORMAL_EXCEPTION_PROLOG(0xf20, PROLOG_ADDITION_NONE) + NORMAL_EXCEPTION_PROLOG(0xf20, BOOKE_INTERRUPT_AP_UNAVAIL, + PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0xf20, PACA_EXGEN, INTS_DISABLE) bl .save_nvgprs addi r3,r1,STACK_FRAME_OVERHEAD @@ -397,7 +434,8 @@ interrupt_end_book3e: /* Debug exception as a critical interrupt*/ START_EXCEPTION(debug_crit); - CRIT_EXCEPTION_PROLOG(0xd00, PROLOG_ADDITION_2REGS) + CRIT_EXCEPTION_PROLOG(0xd00, BOOKE_INTERRUPT_DEBUG, + PROLOG_ADDITION_2REGS) /* * If there is a single step or branch-taken exception in an @@ -431,7 +469,7 @@ interrupt_end_book3e: mtcr r10 ld r10,PACA_EXCRIT+EX_R10(r13) /* restore registers */ ld r11,PACA_EXCRIT+EX_R11(r13) - mfspr r13,SPRN_SPRG_CRIT_SCRATCH + ld r13,PACA_EXCRIT+EX_R13(r13) rfci /* Normal debug exception */ @@ -444,7 +482,7 @@ interrupt_end_book3e: /* Now we mash up things to make it look like we are coming on a * normal exception */ - mfspr r15,SPRN_SPRG_CRIT_SCRATCH + ld r15,PACA_EXCRIT+EX_R13(r13) mtspr SPRN_SPRG_GEN_SCRATCH,r15 mfspr r14,SPRN_DBSR EXCEPTION_COMMON(0xd00, PACA_EXCRIT, INTS_DISABLE) @@ -462,7 +500,8 @@ kernel_dbg_exc: /* Debug exception as a debug interrupt*/ START_EXCEPTION(debug_debug); - DBG_EXCEPTION_PROLOG(0xd08, PROLOG_ADDITION_2REGS) + DBG_EXCEPTION_PROLOG(0xd00, BOOKE_INTERRUPT_DEBUG, + PROLOG_ADDITION_2REGS) /* * If there is a single step or branch-taken exception in an @@ -523,18 +562,21 @@ kernel_dbg_exc: b .ret_from_except START_EXCEPTION(perfmon); - NORMAL_EXCEPTION_PROLOG(0x260, PROLOG_ADDITION_NONE) + NORMAL_EXCEPTION_PROLOG(0x260, BOOKE_INTERRUPT_PERFORMANCE_MONITOR, + PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x260, PACA_EXGEN, INTS_DISABLE) addi r3,r1,STACK_FRAME_OVERHEAD bl .performance_monitor_exception b .ret_from_except_lite /* Doorbell interrupt */ - MASKABLE_EXCEPTION(0x280, doorbell, .doorbell_exception, ACK_NONE) + MASKABLE_EXCEPTION(0x280, BOOKE_INTERRUPT_DOORBELL, + doorbell, .doorbell_exception, ACK_NONE) /* Doorbell critical Interrupt */ START_EXCEPTION(doorbell_crit); - CRIT_EXCEPTION_PROLOG(0x2a0, PROLOG_ADDITION_NONE) + CRIT_EXCEPTION_PROLOG(0x2a0, BOOKE_INTERRUPT_DOORBELL_CRITICAL, + PROLOG_ADDITION_NONE) // EXCEPTION_COMMON(0x2a0, PACA_EXCRIT, INTS_DISABLE) // bl special_reg_save_crit // CHECK_NAPPING(); @@ -543,12 +585,24 @@ kernel_dbg_exc: // b ret_from_crit_except b . -/* Guest Doorbell */ - MASKABLE_EXCEPTION(0x2c0, guest_doorbell, .unknown_exception, ACK_NONE) +/* + * Guest doorbell interrupt + * This general exception use GSRRx save/restore registers + */ + START_EXCEPTION(guest_doorbell); + GDBELL_EXCEPTION_PROLOG(0x2c0, BOOKE_INTERRUPT_GUEST_DBELL, + PROLOG_ADDITION_NONE) + EXCEPTION_COMMON(0x2c0, PACA_EXGEN, INTS_KEEP) + addi r3,r1,STACK_FRAME_OVERHEAD + bl .save_nvgprs + INTS_RESTORE_HARD + bl .unknown_exception + b .ret_from_except /* Guest Doorbell critical Interrupt */ START_EXCEPTION(guest_doorbell_crit); - CRIT_EXCEPTION_PROLOG(0x2e0, PROLOG_ADDITION_NONE) + CRIT_EXCEPTION_PROLOG(0x2e0, BOOKE_INTERRUPT_GUEST_DBELL_CRIT, + PROLOG_ADDITION_NONE) // EXCEPTION_COMMON(0x2e0, PACA_EXCRIT, INTS_DISABLE) // bl special_reg_save_crit // CHECK_NAPPING(); @@ -559,7 +613,8 @@ kernel_dbg_exc: /* Hypervisor call */ START_EXCEPTION(hypercall); - NORMAL_EXCEPTION_PROLOG(0x310, PROLOG_ADDITION_NONE) + NORMAL_EXCEPTION_PROLOG(0x310, BOOKE_INTERRUPT_HV_SYSCALL, + PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x310, PACA_EXGEN, INTS_KEEP) addi r3,r1,STACK_FRAME_OVERHEAD bl .save_nvgprs @@ -569,7 +624,8 @@ kernel_dbg_exc: /* Embedded Hypervisor priviledged */ START_EXCEPTION(ehpriv); - NORMAL_EXCEPTION_PROLOG(0x320, PROLOG_ADDITION_NONE) + NORMAL_EXCEPTION_PROLOG(0x320, BOOKE_INTERRUPT_HV_PRIV, + PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x320, PACA_EXGEN, INTS_KEEP) addi r3,r1,STACK_FRAME_OVERHEAD bl .save_nvgprs @@ -582,44 +638,42 @@ kernel_dbg_exc: * accordingly and if the interrupt is level sensitive, we hard disable */ +.macro masked_interrupt_book3e paca_irq full_mask + lbz r10,PACAIRQHAPPENED(r13) + ori r10,r10,\paca_irq + stb r10,PACAIRQHAPPENED(r13) + + .if \full_mask == 1 + rldicl r10,r11,48,1 /* clear MSR_EE */ + rotldi r11,r10,16 + mtspr SPRN_SRR1,r11 + .endif + + lwz r11,PACA_EXGEN+EX_CR(r13) + mtcr r11 + ld r10,PACA_EXGEN+EX_R10(r13) + ld r11,PACA_EXGEN+EX_R11(r13) + mfspr r13,SPRN_SPRG_GEN_SCRATCH + rfi + b . +.endm + masked_interrupt_book3e_0x500: - /* XXX When adding support for EPR, use PACA_IRQ_EE_EDGE */ - li r11,PACA_IRQ_EE - b masked_interrupt_book3e_full_mask + // XXX When adding support for EPR, use PACA_IRQ_EE_EDGE + masked_interrupt_book3e PACA_IRQ_EE 1 masked_interrupt_book3e_0x900: - ACK_DEC(r11); - li r11,PACA_IRQ_DEC - b masked_interrupt_book3e_no_mask + ACK_DEC(r10); + masked_interrupt_book3e PACA_IRQ_DEC 0 + masked_interrupt_book3e_0x980: - ACK_FIT(r11); - li r11,PACA_IRQ_DEC - b masked_interrupt_book3e_no_mask + ACK_FIT(r10); + masked_interrupt_book3e PACA_IRQ_DEC 0 + masked_interrupt_book3e_0x280: masked_interrupt_book3e_0x2c0: - li r11,PACA_IRQ_DBELL - b masked_interrupt_book3e_no_mask + masked_interrupt_book3e PACA_IRQ_DBELL 0 -masked_interrupt_book3e_no_mask: - mtcr r10 - lbz r10,PACAIRQHAPPENED(r13) - or r10,r10,r11 - stb r10,PACAIRQHAPPENED(r13) - b 1f -masked_interrupt_book3e_full_mask: - mtcr r10 - lbz r10,PACAIRQHAPPENED(r13) - or r10,r10,r11 - stb r10,PACAIRQHAPPENED(r13) - mfspr r10,SPRN_SRR1 - rldicl r11,r10,48,1 /* clear MSR_EE */ - rotldi r10,r11,16 - mtspr SPRN_SRR1,r10 -1: ld r10,PACA_EXGEN+EX_R10(r13); - ld r11,PACA_EXGEN+EX_R11(r13); - mfspr r13,SPRN_SPRG_GEN_SCRATCH; - rfi - b . /* * Called from arch_local_irq_enable when an interrupt needs * to be resent. r3 contains either 0x500,0x900,0x260 or 0x280 @@ -1302,25 +1356,11 @@ _GLOBAL(setup_perfmon_ivor) _GLOBAL(setup_doorbell_ivors) SET_IVOR(36, 0x280) /* Processor Doorbell */ SET_IVOR(37, 0x2a0) /* Processor Doorbell Crit */ - - /* Check MMUCFG[LPIDSIZE] to determine if we have category E.HV */ - mfspr r10,SPRN_MMUCFG - rlwinm. r10,r10,0,MMUCFG_LPIDSIZE - beqlr - - SET_IVOR(38, 0x2c0) /* Guest Processor Doorbell */ - SET_IVOR(39, 0x2e0) /* Guest Processor Doorbell Crit/MC */ blr _GLOBAL(setup_ehv_ivors) - /* - * We may be running as a guest and lack E.HV even on a chip - * that normally has it. - */ - mfspr r10,SPRN_MMUCFG - rlwinm. r10,r10,0,MMUCFG_LPIDSIZE - beqlr - SET_IVOR(40, 0x300) /* Embedded Hypervisor System Call */ SET_IVOR(41, 0x320) /* Embedded Hypervisor Privilege */ + SET_IVOR(38, 0x2c0) /* Guest Processor Doorbell */ + SET_IVOR(39, 0x2e0) /* Guest Processor Doorbell Crit/MC */ blr diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 39aa97d..10b658a 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -275,6 +275,31 @@ vsx_unavailable_pSeries_1: STD_EXCEPTION_PSERIES(0x1300, 0x1300, instruction_breakpoint) KVM_HANDLER_PR_SKIP(PACA_EXGEN, EXC_STD, 0x1300) + . = 0x1500 + .global denorm_Hypervisor +denorm_exception_hv: + HMT_MEDIUM + mtspr SPRN_SPRG_HSCRATCH0,r13 + mfspr r13,SPRN_SPRG_HPACA + std r9,PACA_EXGEN+EX_R9(r13) + std r10,PACA_EXGEN+EX_R10(r13) + std r11,PACA_EXGEN+EX_R11(r13) + std r12,PACA_EXGEN+EX_R12(r13) + mfspr r9,SPRN_SPRG_HSCRATCH0 + std r9,PACA_EXGEN+EX_R13(r13) + mfcr r9 + +#ifdef CONFIG_PPC_DENORMALISATION + mfspr r10,SPRN_HSRR1 + mfspr r11,SPRN_HSRR0 /* save HSRR0 */ + andis. r10,r10,(HSRR1_DENORM)@h /* denorm? */ + addi r11,r11,-4 /* HSRR0 is next instruction */ + bne+ denorm_assist +#endif + + EXCEPTION_PROLOG_PSERIES_1(denorm_common, EXC_HV) + KVM_HANDLER_SKIP(PACA_EXGEN, EXC_STD, 0x1500) + #ifdef CONFIG_CBE_RAS STD_EXCEPTION_HV(0x1600, 0x1602, cbe_maintenance) KVM_HANDLER_SKIP(PACA_EXGEN, EXC_HV, 0x1602) @@ -336,6 +361,103 @@ do_stab_bolted_pSeries: KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0x900) KVM_HANDLER(PACA_EXGEN, EXC_HV, 0x982) +#ifdef CONFIG_PPC_DENORMALISATION +denorm_assist: +BEGIN_FTR_SECTION +/* + * To denormalise we need to move a copy of the register to itself. + * For POWER6 do that here for all FP regs. + */ + mfmsr r10 + ori r10,r10,(MSR_FP|MSR_FE0|MSR_FE1) + xori r10,r10,(MSR_FE0|MSR_FE1) + mtmsrd r10 + sync + fmr 0,0 + fmr 1,1 + fmr 2,2 + fmr 3,3 + fmr 4,4 + fmr 5,5 + fmr 6,6 + fmr 7,7 + fmr 8,8 + fmr 9,9 + fmr 10,10 + fmr 11,11 + fmr 12,12 + fmr 13,13 + fmr 14,14 + fmr 15,15 + fmr 16,16 + fmr 17,17 + fmr 18,18 + fmr 19,19 + fmr 20,20 + fmr 21,21 + fmr 22,22 + fmr 23,23 + fmr 24,24 + fmr 25,25 + fmr 26,26 + fmr 27,27 + fmr 28,28 + fmr 29,29 + fmr 30,30 + fmr 31,31 +FTR_SECTION_ELSE +/* + * To denormalise we need to move a copy of the register to itself. + * For POWER7 do that here for the first 32 VSX registers only. + */ + mfmsr r10 + oris r10,r10,MSR_VSX@h + mtmsrd r10 + sync + XVCPSGNDP(0,0,0) + XVCPSGNDP(1,1,1) + XVCPSGNDP(2,2,2) + XVCPSGNDP(3,3,3) + XVCPSGNDP(4,4,4) + XVCPSGNDP(5,5,5) + XVCPSGNDP(6,6,6) + XVCPSGNDP(7,7,7) + XVCPSGNDP(8,8,8) + XVCPSGNDP(9,9,9) + XVCPSGNDP(10,10,10) + XVCPSGNDP(11,11,11) + XVCPSGNDP(12,12,12) + XVCPSGNDP(13,13,13) + XVCPSGNDP(14,14,14) + XVCPSGNDP(15,15,15) + XVCPSGNDP(16,16,16) + XVCPSGNDP(17,17,17) + XVCPSGNDP(18,18,18) + XVCPSGNDP(19,19,19) + XVCPSGNDP(20,20,20) + XVCPSGNDP(21,21,21) + XVCPSGNDP(22,22,22) + XVCPSGNDP(23,23,23) + XVCPSGNDP(24,24,24) + XVCPSGNDP(25,25,25) + XVCPSGNDP(26,26,26) + XVCPSGNDP(27,27,27) + XVCPSGNDP(28,28,28) + XVCPSGNDP(29,29,29) + XVCPSGNDP(30,30,30) + XVCPSGNDP(31,31,31) +ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_206) + mtspr SPRN_HSRR0,r11 + mtcrf 0x80,r9 + ld r9,PACA_EXGEN+EX_R9(r13) + ld r10,PACA_EXGEN+EX_R10(r13) + ld r11,PACA_EXGEN+EX_R11(r13) + ld r12,PACA_EXGEN+EX_R12(r13) + ld r13,PACA_EXGEN+EX_R13(r13) + HRFID + b . +#endif + .align 7 /* moved from 0xe00 */ STD_EXCEPTION_HV(., 0xe02, h_data_storage) @@ -495,6 +617,7 @@ machine_check_common: STD_EXCEPTION_COMMON(0xe60, hmi_exception, .unknown_exception) STD_EXCEPTION_COMMON_ASYNC(0xf00, performance_monitor, .performance_monitor_exception) STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, .instruction_breakpoint_exception) + STD_EXCEPTION_COMMON(0x1502, denorm, .unknown_exception) #ifdef CONFIG_ALTIVEC STD_EXCEPTION_COMMON(0x1700, altivec_assist, .altivec_assist_exception) #else @@ -960,7 +1083,9 @@ _GLOBAL(do_stab_bolted) rldimi r10,r11,7,52 /* r10 = first ste of the group */ /* Calculate VSID */ - /* This is a kernel address, so protovsid = ESID */ + /* This is a kernel address, so protovsid = ESID | 1 << 37 */ + li r9,0x1 + rldimi r11,r9,(CONTEXT_BITS + USER_ESID_BITS),0 ASM_VSID_SCRAMBLE(r11, r9, 256M) rldic r9,r11,12,16 /* r9 = vsid << 12 */ diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 18bdf74..06c8202 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -289,8 +289,7 @@ int __init fadump_reserve_mem(void) else memory_limit = memblock_end_of_DRAM(); printk(KERN_INFO "Adjusted memory_limit for firmware-assisted" - " dump, now %#016llx\n", - (unsigned long long)memory_limit); + " dump, now %#016llx\n", memory_limit); } if (memory_limit) memory_boundary = memory_limit; diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 0f59863..6f62a73 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -895,15 +895,11 @@ _GLOBAL(__setup_e500mc_ivors) mtspr SPRN_IVOR36,r3 li r3,CriticalDoorbell@l mtspr SPRN_IVOR37,r3 + sync + blr - /* - * We only want to touch IVOR38-41 if we're running on hardware - * that supports category E.HV. The architectural way to determine - * this is MMUCFG[LPIDSIZE]. - */ - mfspr r3, SPRN_MMUCFG - andis. r3, r3, MMUCFG_LPIDSIZE@h - beq no_hv +/* setup ehv ivors for */ +_GLOBAL(__setup_ehv_ivors) li r3,GuestDoorbell@l mtspr SPRN_IVOR38,r3 li r3,CriticalGuestDoorbell@l @@ -912,14 +908,8 @@ _GLOBAL(__setup_e500mc_ivors) mtspr SPRN_IVOR40,r3 li r3,Ehvpriv@l mtspr SPRN_IVOR41,r3 -skip_hv_ivors: sync blr -no_hv: - lwz r3, CPU_SPEC_FEATURES(r5) - rlwinm r3, r3, 0, ~CPU_FTR_EMB_HV - stw r3, CPU_SPEC_FEATURES(r5) - b skip_hv_ivors #ifdef CONFIG_SPE /* @@ -1043,6 +1033,34 @@ _GLOBAL(flush_dcache_L1) blr +/* Flush L1 d-cache, invalidate and disable d-cache and i-cache */ +_GLOBAL(__flush_disable_L1) + mflr r10 + bl flush_dcache_L1 /* Flush L1 d-cache */ + mtlr r10 + + mfspr r4, SPRN_L1CSR0 /* Invalidate and disable d-cache */ + li r5, 2 + rlwimi r4, r5, 0, 3 + + msync + isync + mtspr SPRN_L1CSR0, r4 + isync + +1: mfspr r4, SPRN_L1CSR0 /* Wait for the invalidate to finish */ + andi. r4, r4, 2 + bne 1b + + mfspr r4, SPRN_L1CSR1 /* Invalidate and disable i-cache */ + li r5, 2 + rlwimi r4, r5, 0, 3 + + mtspr SPRN_L1CSR1, r4 + isync + + blr + #ifdef CONFIG_SMP /* When we get here, r24 needs to hold the CPU # */ .globl __secondary_start diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c index 956a4c4..a89cae4 100644 --- a/arch/powerpc/kernel/hw_breakpoint.c +++ b/arch/powerpc/kernel/hw_breakpoint.c @@ -73,7 +73,7 @@ int arch_install_hw_breakpoint(struct perf_event *bp) * If so, DABR will be populated in single_step_dabr_instruction(). */ if (current->thread.last_hit_ubp != bp) - set_dabr(info->address | info->type | DABR_TRANSLATION); + set_dabr(info->address | info->type | DABR_TRANSLATION, info->dabrx); return 0; } @@ -97,7 +97,7 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp) } *slot = NULL; - set_dabr(0); + set_dabr(0, 0); } /* @@ -170,6 +170,13 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp) info->address = bp->attr.bp_addr; info->len = bp->attr.bp_len; + info->dabrx = DABRX_ALL; + if (bp->attr.exclude_user) + info->dabrx &= ~DABRX_USER; + if (bp->attr.exclude_kernel) + info->dabrx &= ~DABRX_KERNEL; + if (bp->attr.exclude_hv) + info->dabrx &= ~DABRX_HYP; /* * Since breakpoint length can be a maximum of HW_BREAKPOINT_LEN(8) @@ -197,7 +204,7 @@ void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs) info = counter_arch_bp(tsk->thread.last_hit_ubp); regs->msr &= ~MSR_SE; - set_dabr(info->address | info->type | DABR_TRANSLATION); + set_dabr(info->address | info->type | DABR_TRANSLATION, info->dabrx); tsk->thread.last_hit_ubp = NULL; } @@ -215,7 +222,7 @@ int __kprobes hw_breakpoint_handler(struct die_args *args) unsigned long dar = regs->dar; /* Disable breakpoints during exception handling */ - set_dabr(0); + set_dabr(0, 0); /* * The counter may be concurrently released but that can only @@ -281,7 +288,7 @@ int __kprobes hw_breakpoint_handler(struct die_args *args) if (!info->extraneous_interrupt) perf_bp_event(bp, regs); - set_dabr(info->address | info->type | DABR_TRANSLATION); + set_dabr(info->address | info->type | DABR_TRANSLATION, info->dabrx); out: rcu_read_unlock(); return rc; @@ -294,7 +301,7 @@ int __kprobes single_step_dabr_instruction(struct die_args *args) { struct pt_regs *regs = args->regs; struct perf_event *bp = NULL; - struct arch_hw_breakpoint *bp_info; + struct arch_hw_breakpoint *info; bp = current->thread.last_hit_ubp; /* @@ -304,16 +311,16 @@ int __kprobes single_step_dabr_instruction(struct die_args *args) if (!bp) return NOTIFY_DONE; - bp_info = counter_arch_bp(bp); + info = counter_arch_bp(bp); /* * We shall invoke the user-defined callback function in the single * stepping handler to confirm to 'trigger-after-execute' semantics */ - if (!bp_info->extraneous_interrupt) + if (!info->extraneous_interrupt) perf_bp_event(bp, regs); - set_dabr(bp_info->address | bp_info->type | DABR_TRANSLATION); + set_dabr(info->address | info->type | DABR_TRANSLATION, info->dabrx); current->thread.last_hit_ubp = NULL; /* diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index b01d14e..8220baa 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -47,7 +47,6 @@ #include <linux/stat.h> #include <linux/of_platform.h> #include <asm/ibmebus.h> -#include <asm/abs_addr.h> static struct device ibmebus_bus_device = { /* fake "parent" device */ .init_name = "ibmebus", diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index ff5a6ce..8226c6c 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -215,7 +215,8 @@ static unsigned long iommu_range_alloc(struct device *dev, spin_lock_irqsave(&(pool->lock), flags); again: - if ((pass == 0) && handle && *handle) + if ((pass == 0) && handle && *handle && + (*handle >= pool->start) && (*handle < pool->end)) start = *handle; else start = pool->hint; @@ -236,7 +237,9 @@ again: * but on second pass, start at 0 in pool 0. */ if ((start & mask) >= limit || pass > 0) { + spin_unlock(&(pool->lock)); pool = &(tbl->pools[0]); + spin_lock(&(pool->lock)); start = pool->start; } else { start &= mask; diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 1f017bb..71413f4 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -489,10 +489,10 @@ void do_IRQ(struct pt_regs *regs) struct pt_regs *old_regs = set_irq_regs(regs); unsigned int irq; - trace_irq_entry(regs); - irq_enter(); + trace_irq_entry(regs); + check_stack_overflow(); /* @@ -511,10 +511,10 @@ void do_IRQ(struct pt_regs *regs) else __get_cpu_var(irq_stat).spurious_irqs++; + trace_irq_exit(regs); + irq_exit(); set_irq_regs(old_regs); - - trace_irq_exit(regs); } void __init init_IRQ(void) diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index 5df7777..fa9f6c7 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -165,7 +165,7 @@ void __init reserve_crashkernel(void) if (memory_limit && memory_limit <= crashk_res.end) { memory_limit = crashk_res.end + 1; printk("Adjusted memory limit for crashkernel, now 0x%llx\n", - (unsigned long long)memory_limit); + memory_limit); } printk(KERN_INFO "Reserving %ldMB of memory at %ldMB " @@ -204,6 +204,12 @@ static struct property crashk_size_prop = { .value = &crashk_size, }; +static struct property memory_limit_prop = { + .name = "linux,memory-limit", + .length = sizeof(unsigned long long), + .value = &memory_limit, +}; + static void __init export_crashk_values(struct device_node *node) { struct property *prop; @@ -223,6 +229,12 @@ static void __init export_crashk_values(struct device_node *node) crashk_size = resource_size(&crashk_res); prom_add_property(node, &crashk_size_prop); } + + /* + * memory_limit is required by the kexec-tools to limit the + * crash regions to the actual memory used. + */ + prom_update_property(node, &memory_limit_prop); } static int __init kexec_setup(void) diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index fbe1a12..cd6da85 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -142,6 +142,7 @@ void __init initialise_paca(struct paca_struct *new_paca, int cpu) new_paca->hw_cpu_id = 0xffff; new_paca->kexec_state = KEXEC_STATE_NONE; new_paca->__current = &init_task; + new_paca->data_offset = 0xfeeeeeeeeeeeeeeeULL; #ifdef CONFIG_PPC_STD_MMU_64 new_paca->slb_shadow_ptr = &slb_shadow[cpu]; #endif /* CONFIG_PPC_STD_MMU_64 */ diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 43fea54..7f94f76 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -980,13 +980,14 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus) if (i >= 3 && bus->self->transparent) continue; - /* If we are going to re-assign everything, mark the resource - * as unset and move it down to 0 + /* If we're going to reassign everything, we can + * shrink the P2P resource to have size as being + * of 0 in order to save space. */ if (pci_has_flag(PCI_REASSIGN_ALL_RSRC)) { res->flags |= IORESOURCE_UNSET; - res->end -= res->start; res->start = 0; + res->end = -1; continue; } @@ -1248,7 +1249,14 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus) pr_warning("PCI: Cannot allocate resource region " "%d of PCI bridge %d, will remap\n", i, bus->number); clear_resource: - res->start = res->end = 0; + /* The resource might be figured out when doing + * reassignment based on the resources required + * by the downstream PCI devices. Here we set + * the size of the resource to be 0 in order to + * save more space. + */ + res->start = 0; + res->end = -1; res->flags = 0; } diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index e9cb51f..d5ad666 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -258,6 +258,7 @@ void do_send_trap(struct pt_regs *regs, unsigned long address, { siginfo_t info; + current->thread.trap_nr = signal_code; if (notify_die(DIE_DABR_MATCH, "dabr_match", regs, error_code, 11, SIGSEGV) == NOTIFY_STOP) return; @@ -275,6 +276,7 @@ void do_dabr(struct pt_regs *regs, unsigned long address, { siginfo_t info; + current->thread.trap_nr = TRAP_HWBKPT; if (notify_die(DIE_DABR_MATCH, "dabr_match", regs, error_code, 11, SIGSEGV) == NOTIFY_STOP) return; @@ -283,7 +285,7 @@ void do_dabr(struct pt_regs *regs, unsigned long address, return; /* Clear the DABR */ - set_dabr(0); + set_dabr(0, 0); /* Deliver the signal to userspace */ info.si_signo = SIGTRAP; @@ -364,18 +366,19 @@ static void set_debug_reg_defaults(struct thread_struct *thread) { if (thread->dabr) { thread->dabr = 0; - set_dabr(0); + thread->dabrx = 0; + set_dabr(0, 0); } } #endif /* !CONFIG_HAVE_HW_BREAKPOINT */ #endif /* CONFIG_PPC_ADV_DEBUG_REGS */ -int set_dabr(unsigned long dabr) +int set_dabr(unsigned long dabr, unsigned long dabrx) { __get_cpu_var(current_dabr) = dabr; if (ppc_md.set_dabr) - return ppc_md.set_dabr(dabr); + return ppc_md.set_dabr(dabr, dabrx); /* XXX should we have a CPU_FTR_HAS_DABR ? */ #ifdef CONFIG_PPC_ADV_DEBUG_REGS @@ -385,9 +388,8 @@ int set_dabr(unsigned long dabr) #endif #elif defined(CONFIG_PPC_BOOK3S) mtspr(SPRN_DABR, dabr); + mtspr(SPRN_DABRX, dabrx); #endif - - return 0; } @@ -480,7 +482,7 @@ struct task_struct *__switch_to(struct task_struct *prev, */ #ifndef CONFIG_HAVE_HW_BREAKPOINT if (unlikely(__get_cpu_var(current_dabr) != new->thread.dabr)) - set_dabr(new->thread.dabr); + set_dabr(new->thread.dabr, new->thread.dabrx); #endif /* CONFIG_HAVE_HW_BREAKPOINT */ #endif diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index f191bf0..37725e8 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -78,7 +78,7 @@ static int __init early_parse_mem(char *p) return 1; memory_limit = PAGE_ALIGN(memparse(p, &p)); - DBG("memory limit = 0x%llx\n", (unsigned long long)memory_limit); + DBG("memory limit = 0x%llx\n", memory_limit); return 0; } @@ -661,7 +661,7 @@ void __init early_init_devtree(void *params) /* make sure we've parsed cmdline for mem= before this */ if (memory_limit) - first_memblock_size = min(first_memblock_size, memory_limit); + first_memblock_size = min_t(u64, first_memblock_size, memory_limit); setup_initial_memory_limit(memstart_addr, first_memblock_size); /* Reserve MEMBLOCK regions used by kernel, initrd, dt, etc... */ memblock_reserve(PHYSICAL_START, __pa(klimit) - PHYSICAL_START); diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 47834a3f..cb6c123 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -1748,7 +1748,7 @@ static void __init prom_initialize_tce_table(void) * else will impact performance, so we always allocate 8MB. * Anton */ - if (__is_processor(PV_POWER4) || __is_processor(PV_POWER4p)) + if (pvr_version_is(PVR_POWER4) || pvr_version_is(PVR_POWER4p)) minsize = 8UL << 20; else minsize = 4UL << 20; diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index c10fc28..79d8e56 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -960,6 +960,7 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, thread->ptrace_bps[0] = bp; ptrace_put_breakpoints(task); thread->dabr = data; + thread->dabrx = DABRX_ALL; return 0; } @@ -983,6 +984,7 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, /* Move contents to the DABR register */ task->thread.dabr = data; + task->thread.dabrx = DABRX_ALL; #else /* CONFIG_PPC_ADV_DEBUG_REGS */ /* As described above, it was assumed 3 bits were passed with the data * address, but we will assume only the mode bits will be passed @@ -1397,6 +1399,7 @@ static long ppc_set_hwdebug(struct task_struct *child, dabr |= DABR_DATA_WRITE; child->thread.dabr = dabr; + child->thread.dabrx = DABRX_ALL; return 1; #endif /* !CONFIG_PPC_ADV_DEBUG_DVCS */ diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c index 2c0ee64..20b0120 100644 --- a/arch/powerpc/kernel/rtas_flash.c +++ b/arch/powerpc/kernel/rtas_flash.c @@ -21,7 +21,6 @@ #include <asm/delay.h> #include <asm/uaccess.h> #include <asm/rtas.h> -#include <asm/abs_addr.h> #define MODULE_VERS "1.0" #define MODULE_NAME "rtas_flash" @@ -582,7 +581,7 @@ static void rtas_flash_firmware(int reboot_type) flist = (struct flash_block_list *)&rtas_data_buf[0]; flist->num_blocks = 0; flist->next = rtas_firmware_flash_list; - rtas_block_list = virt_to_abs(flist); + rtas_block_list = __pa(flist); if (rtas_block_list >= 4UL*1024*1024*1024) { printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n"); spin_unlock(&rtas_data_buf_lock); @@ -596,13 +595,13 @@ static void rtas_flash_firmware(int reboot_type) for (f = flist; f; f = next) { /* Translate data addrs to absolute */ for (i = 0; i < f->num_blocks; i++) { - f->blocks[i].data = (char *)virt_to_abs(f->blocks[i].data); + f->blocks[i].data = (char *)__pa(f->blocks[i].data); image_size += f->blocks[i].length; } next = f->next; /* Don't translate NULL pointer for last entry */ if (f->next) - f->next = (struct flash_block_list *)virt_to_abs(f->next); + f->next = (struct flash_block_list *)__pa(f->next); else f->next = NULL; /* make num_blocks into the version/length field */ diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index 179af90..6de63e3 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -81,7 +81,7 @@ int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val) return PCIBIOS_DEVICE_NOT_FOUND; if (returnval == EEH_IO_ERROR_VALUE(size) && - eeh_dn_check_failure (pdn->node, NULL)) + eeh_dev_check_failure(of_node_to_eeh_dev(pdn->node))) return PCIBIOS_DEVICE_NOT_FOUND; return PCIBIOS_SUCCESSFUL; @@ -275,9 +275,6 @@ void __init find_and_init_phbs(void) of_node_put(root); pci_devs_phb_init(); - /* Create EEH devices for all PHBs */ - eeh_dev_phb_init(); - /* * PCI_PROBE_ONLY and PCI_REASSIGN_ALL_BUS can be set via properties * in chosen. diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 389bd4f..efb6a41 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -208,6 +208,8 @@ void __init early_setup(unsigned long dt_ptr) /* Fix up paca fields required for the boot cpu */ get_paca()->cpu_start = 1; + /* Allow percpu accesses to "work" until we setup percpu data */ + get_paca()->data_offset = 0; /* Probe the machine type */ probe_machine(); diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c index 5c023c9..a2dc757 100644 --- a/arch/powerpc/kernel/signal.c +++ b/arch/powerpc/kernel/signal.c @@ -11,6 +11,7 @@ #include <linux/tracehook.h> #include <linux/signal.h> +#include <linux/uprobes.h> #include <linux/key.h> #include <asm/hw_breakpoint.h> #include <asm/uaccess.h> @@ -130,7 +131,7 @@ static int do_signal(struct pt_regs *regs) * triggered inside the kernel. */ if (current->thread.dabr) - set_dabr(current->thread.dabr); + set_dabr(current->thread.dabr, current->thread.dabrx); #endif /* Re-enable the breakpoints for the signal stack */ thread_change_pc(current, regs); @@ -157,6 +158,11 @@ static int do_signal(struct pt_regs *regs) void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags) { + if (thread_info_flags & _TIF_UPROBE) { + clear_thread_flag(TIF_UPROBE); + uprobe_notify_resume(regs); + } + if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs); diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 8d4214a..2b952b5 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -102,7 +102,7 @@ int __devinit smp_generic_kick_cpu(int nr) * Ok it's not there, so it might be soft-unplugged, let's * try to bring it back */ - per_cpu(cpu_state, nr) = CPU_UP_PREPARE; + generic_set_cpu_up(nr); smp_wmb(); smp_send_reschedule(nr); #endif /* CONFIG_HOTPLUG_CPU */ @@ -171,7 +171,7 @@ int smp_request_message_ipi(int virq, int msg) } #endif err = request_irq(virq, smp_ipi_action[msg], - IRQF_PERCPU | IRQF_NO_THREAD, + IRQF_PERCPU | IRQF_NO_THREAD | IRQF_NO_SUSPEND, smp_ipi_name[msg], 0); WARN(err < 0, "unable to request_irq %d for %s (rc %d)\n", virq, smp_ipi_name[msg], err); @@ -413,6 +413,16 @@ void generic_set_cpu_dead(unsigned int cpu) per_cpu(cpu_state, cpu) = CPU_DEAD; } +/* + * The cpu_state should be set to CPU_UP_PREPARE in kick_cpu(), otherwise + * the cpu_state is always CPU_DEAD after calling generic_set_cpu_dead(), + * which makes the delay in generic_cpu_die() not happen. + */ +void generic_set_cpu_up(unsigned int cpu) +{ + per_cpu(cpu_state, cpu) = CPU_UP_PREPARE; +} + int generic_check_cpu_restart(unsigned int cpu) { return per_cpu(cpu_state, cpu) == CPU_UP_PREPARE; diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index eaa9d0e..c9986fd 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -508,8 +508,6 @@ void timer_interrupt(struct pt_regs * regs) */ may_hard_irq_enable(); - trace_timer_interrupt_entry(regs); - __get_cpu_var(irq_stat).timer_irqs++; #if defined(CONFIG_PPC32) && defined(CONFIG_PMAC) @@ -520,6 +518,8 @@ void timer_interrupt(struct pt_regs * regs) old_regs = set_irq_regs(regs); irq_enter(); + trace_timer_interrupt_entry(regs); + if (test_irq_work_pending()) { clear_irq_work_pending(); irq_work_run(); @@ -544,10 +544,10 @@ void timer_interrupt(struct pt_regs * regs) } #endif + trace_timer_interrupt_exit(regs); + irq_exit(); set_irq_regs(old_regs); - - trace_timer_interrupt_exit(regs); } /* diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index ae0843f..3251840 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -251,6 +251,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr) if (arch_irqs_disabled() && !arch_irq_disabled_regs(regs)) local_irq_enable(); + current->thread.trap_nr = code; memset(&info, 0, sizeof(info)); info.si_signo = signr; info.si_code = code; diff --git a/arch/powerpc/kernel/uprobes.c b/arch/powerpc/kernel/uprobes.c new file mode 100644 index 0000000..d2d46d1 --- /dev/null +++ b/arch/powerpc/kernel/uprobes.c @@ -0,0 +1,184 @@ +/* + * User-space Probes (UProbes) for powerpc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright IBM Corporation, 2007-2012 + * + * Adapted from the x86 port by Ananth N Mavinakayanahalli <ananth@in.ibm.com> + */ +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/ptrace.h> +#include <linux/uprobes.h> +#include <linux/uaccess.h> +#include <linux/kdebug.h> + +#include <asm/sstep.h> + +#define UPROBE_TRAP_NR UINT_MAX + +/** + * arch_uprobe_analyze_insn + * @mm: the probed address space. + * @arch_uprobe: the probepoint information. + * @addr: vaddr to probe. + * Return 0 on success or a -ve number on error. + */ +int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, + struct mm_struct *mm, unsigned long addr) +{ + if (addr & 0x03) + return -EINVAL; + + /* + * We currently don't support a uprobe on an already + * existing breakpoint instruction underneath + */ + if (is_trap(auprobe->ainsn)) + return -ENOTSUPP; + return 0; +} + +/* + * arch_uprobe_pre_xol - prepare to execute out of line. + * @auprobe: the probepoint information. + * @regs: reflects the saved user state of current task. + */ +int arch_uprobe_pre_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) +{ + struct arch_uprobe_task *autask = ¤t->utask->autask; + + autask->saved_trap_nr = current->thread.trap_nr; + current->thread.trap_nr = UPROBE_TRAP_NR; + regs->nip = current->utask->xol_vaddr; + return 0; +} + +/** + * uprobe_get_swbp_addr - compute address of swbp given post-swbp regs + * @regs: Reflects the saved state of the task after it has hit a breakpoint + * instruction. + * Return the address of the breakpoint instruction. + */ +unsigned long uprobe_get_swbp_addr(struct pt_regs *regs) +{ + return instruction_pointer(regs); +} + +/* + * If xol insn itself traps and generates a signal (SIGILL/SIGSEGV/etc), + * then detect the case where a singlestepped instruction jumps back to its + * own address. It is assumed that anything like do_page_fault/do_trap/etc + * sets thread.trap_nr != UINT_MAX. + * + * arch_uprobe_pre_xol/arch_uprobe_post_xol save/restore thread.trap_nr, + * arch_uprobe_xol_was_trapped() simply checks that ->trap_nr is not equal to + * UPROBE_TRAP_NR == UINT_MAX set by arch_uprobe_pre_xol(). + */ +bool arch_uprobe_xol_was_trapped(struct task_struct *t) +{ + if (t->thread.trap_nr != UPROBE_TRAP_NR) + return true; + + return false; +} + +/* + * Called after single-stepping. To avoid the SMP problems that can + * occur when we temporarily put back the original opcode to + * single-step, we single-stepped a copy of the instruction. + * + * This function prepares to resume execution after the single-step. + */ +int arch_uprobe_post_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) +{ + struct uprobe_task *utask = current->utask; + + WARN_ON_ONCE(current->thread.trap_nr != UPROBE_TRAP_NR); + + current->thread.trap_nr = utask->autask.saved_trap_nr; + + /* + * On powerpc, except for loads and stores, most instructions + * including ones that alter code flow (branches, calls, returns) + * are emulated in the kernel. We get here only if the emulation + * support doesn't exist and have to fix-up the next instruction + * to be executed. + */ + regs->nip = utask->vaddr + MAX_UINSN_BYTES; + return 0; +} + +/* callback routine for handling exceptions. */ +int arch_uprobe_exception_notify(struct notifier_block *self, + unsigned long val, void *data) +{ + struct die_args *args = data; + struct pt_regs *regs = args->regs; + + /* regs == NULL is a kernel bug */ + if (WARN_ON(!regs)) + return NOTIFY_DONE; + + /* We are only interested in userspace traps */ + if (!user_mode(regs)) + return NOTIFY_DONE; + + switch (val) { + case DIE_BPT: + if (uprobe_pre_sstep_notifier(regs)) + return NOTIFY_STOP; + break; + case DIE_SSTEP: + if (uprobe_post_sstep_notifier(regs)) + return NOTIFY_STOP; + default: + break; + } + return NOTIFY_DONE; +} + +/* + * This function gets called when XOL instruction either gets trapped or + * the thread has a fatal signal, so reset the instruction pointer to its + * probed address. + */ +void arch_uprobe_abort_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) +{ + struct uprobe_task *utask = current->utask; + + current->thread.trap_nr = utask->autask.saved_trap_nr; + instruction_pointer_set(regs, utask->vaddr); +} + +/* + * See if the instruction can be emulated. + * Returns true if instruction was emulated, false otherwise. + */ +bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs) +{ + int ret; + + /* + * emulate_step() returns 1 if the insn was successfully emulated. + * For all other cases, we need to single-step in hardware. + */ + ret = emulate_step(regs, auprobe->ainsn); + if (ret > 0) + return true; + + return false; +} diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index b67db22..1b2076f 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -723,9 +723,7 @@ int __cpuinit vdso_getcpu_init(void) val = (cpu & 0xfff) | ((node & 0xffff) << 16); mtspr(SPRN_SPRG3, val); -#ifdef CONFIG_KVM_BOOK3S_HANDLER - get_paca()->kvm_hstate.sprg3 = val; -#endif + get_paca()->sprg3 = val; put_cpu(); diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 02b3221..201ba59 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -33,7 +33,6 @@ #include <asm/prom.h> #include <asm/firmware.h> #include <asm/tce.h> -#include <asm/abs_addr.h> #include <asm/page.h> #include <asm/hvcall.h> diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c index 837f13e..00aa612 100644 --- a/arch/powerpc/kvm/book3s_32_mmu_host.c +++ b/arch/powerpc/kvm/book3s_32_mmu_host.c @@ -141,7 +141,7 @@ extern char etext[]; int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) { pfn_t hpaddr; - u64 va; + u64 vpn; u64 vsid; struct kvmppc_sid_map *map; volatile u32 *pteg; @@ -173,7 +173,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) BUG_ON(!map); vsid = map->host_vsid; - va = (vsid << SID_SHIFT) | (eaddr & ~ESID_MASK); + vpn = (vsid << (SID_SHIFT - VPN_SHIFT)) | ((eaddr & ~ESID_MASK) >> VPN_SHIFT) next_pteg: if (rr == 16) { @@ -244,11 +244,11 @@ next_pteg: dprintk_mmu("KVM: %c%c Map 0x%llx: [%lx] 0x%llx (0x%llx) -> %lx\n", orig_pte->may_write ? 'w' : '-', orig_pte->may_execute ? 'x' : '-', - orig_pte->eaddr, (ulong)pteg, va, + orig_pte->eaddr, (ulong)pteg, vpn, orig_pte->vpage, hpaddr); pte->slot = (ulong)&pteg[rr]; - pte->host_va = va; + pte->host_vpn = vpn; pte->pte = *orig_pte; pte->pfn = hpaddr >> PAGE_SHIFT; diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c index 0688b6b..4d72f9e 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_host.c +++ b/arch/powerpc/kvm/book3s_64_mmu_host.c @@ -33,7 +33,7 @@ void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte) { - ppc_md.hpte_invalidate(pte->slot, pte->host_va, + ppc_md.hpte_invalidate(pte->slot, pte->host_vpn, MMU_PAGE_4K, MMU_SEGSIZE_256M, false); } @@ -80,8 +80,9 @@ static struct kvmppc_sid_map *find_sid_vsid(struct kvm_vcpu *vcpu, u64 gvsid) int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) { + unsigned long vpn; pfn_t hpaddr; - ulong hash, hpteg, va; + ulong hash, hpteg; u64 vsid; int ret; int rflags = 0x192; @@ -117,7 +118,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) } vsid = map->host_vsid; - va = hpt_va(orig_pte->eaddr, vsid, MMU_SEGSIZE_256M); + vpn = hpt_vpn(orig_pte->eaddr, vsid, MMU_SEGSIZE_256M); if (!orig_pte->may_write) rflags |= HPTE_R_PP; @@ -129,7 +130,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) else kvmppc_mmu_flush_icache(hpaddr >> PAGE_SHIFT); - hash = hpt_hash(va, PTE_SIZE, MMU_SEGSIZE_256M); + hash = hpt_hash(vpn, PTE_SIZE, MMU_SEGSIZE_256M); map_again: hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP); @@ -141,7 +142,8 @@ map_again: goto out; } - ret = ppc_md.hpte_insert(hpteg, va, hpaddr, rflags, vflags, MMU_PAGE_4K, MMU_SEGSIZE_256M); + ret = ppc_md.hpte_insert(hpteg, vpn, hpaddr, rflags, vflags, + MMU_PAGE_4K, MMU_SEGSIZE_256M); if (ret < 0) { /* If we couldn't map a primary PTE, try a secondary */ @@ -152,7 +154,8 @@ map_again: } else { struct hpte_cache *pte = kvmppc_mmu_hpte_cache_next(vcpu); - trace_kvm_book3s_64_mmu_map(rflags, hpteg, va, hpaddr, orig_pte); + trace_kvm_book3s_64_mmu_map(rflags, hpteg, + vpn, hpaddr, orig_pte); /* The ppc_md code may give us a secondary entry even though we asked for a primary. Fix up. */ @@ -162,7 +165,7 @@ map_again: } pte->slot = hpteg + (ret & 7); - pte->host_va = va; + pte->host_vpn = vpn; pte->pte = *orig_pte; pte->pfn = hpaddr >> PAGE_SHIFT; diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 44b72fe..74a24bb 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -1065,7 +1065,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206) mtspr SPRN_DABRX,r6 /* Restore SPRG3 */ - ld r3,HSTATE_SPRG3(r13) + ld r3,PACA_SPRG3(r13) mtspr SPRN_SPRG3,r3 /* diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h index 877186b..ddb6a21 100644 --- a/arch/powerpc/kvm/trace.h +++ b/arch/powerpc/kvm/trace.h @@ -189,7 +189,7 @@ TRACE_EVENT(kvm_book3s_mmu_map, TP_ARGS(pte), TP_STRUCT__entry( - __field( u64, host_va ) + __field( u64, host_vpn ) __field( u64, pfn ) __field( ulong, eaddr ) __field( u64, vpage ) @@ -198,7 +198,7 @@ TRACE_EVENT(kvm_book3s_mmu_map, ), TP_fast_assign( - __entry->host_va = pte->host_va; + __entry->host_vpn = pte->host_vpn; __entry->pfn = pte->pfn; __entry->eaddr = pte->pte.eaddr; __entry->vpage = pte->pte.vpage; @@ -208,8 +208,8 @@ TRACE_EVENT(kvm_book3s_mmu_map, (pte->pte.may_execute ? 0x1 : 0); ), - TP_printk("Map: hva=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]", - __entry->host_va, __entry->pfn, __entry->eaddr, + TP_printk("Map: hvpn=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]", + __entry->host_vpn, __entry->pfn, __entry->eaddr, __entry->vpage, __entry->raddr, __entry->flags) ); @@ -218,7 +218,7 @@ TRACE_EVENT(kvm_book3s_mmu_invalidate, TP_ARGS(pte), TP_STRUCT__entry( - __field( u64, host_va ) + __field( u64, host_vpn ) __field( u64, pfn ) __field( ulong, eaddr ) __field( u64, vpage ) @@ -227,7 +227,7 @@ TRACE_EVENT(kvm_book3s_mmu_invalidate, ), TP_fast_assign( - __entry->host_va = pte->host_va; + __entry->host_vpn = pte->host_vpn; __entry->pfn = pte->pfn; __entry->eaddr = pte->pte.eaddr; __entry->vpage = pte->pte.vpage; @@ -238,7 +238,7 @@ TRACE_EVENT(kvm_book3s_mmu_invalidate, ), TP_printk("Flush: hva=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]", - __entry->host_va, __entry->pfn, __entry->eaddr, + __entry->host_vpn, __entry->pfn, __entry->eaddr, __entry->vpage, __entry->raddr, __entry->flags) ); diff --git a/arch/powerpc/lib/memcpy_power7.S b/arch/powerpc/lib/memcpy_power7.S index 7ba6c96..0663630 100644 --- a/arch/powerpc/lib/memcpy_power7.S +++ b/arch/powerpc/lib/memcpy_power7.S @@ -239,8 +239,8 @@ _GLOBAL(memcpy_power7) ori r9,r9,1 /* stream=1 */ srdi r7,r5,7 /* length in cachelines, capped at 0x3FF */ - cmpldi cr1,r7,0x3FF - ble cr1,1f + cmpldi r7,0x3FF + ble 1f li r7,0x3FF 1: lis r0,0x0E00 /* depth=7 */ sldi r7,r7,7 diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index 9a52349..e15c521 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -566,7 +566,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) unsigned long int ea; unsigned int cr, mb, me, sh; int err; - unsigned long old_ra; + unsigned long old_ra, val3; long ival; opcode = instr >> 26; @@ -1486,11 +1486,43 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr) goto ldst_done; case 36: /* stw */ - case 37: /* stwu */ val = regs->gpr[rd]; err = write_mem(val, dform_ea(instr, regs), 4, regs); goto ldst_done; + case 37: /* stwu */ + val = regs->gpr[rd]; + val3 = dform_ea(instr, regs); + /* + * For PPC32 we always use stwu to change stack point with r1. So + * this emulated store may corrupt the exception frame, now we + * have to provide the exception frame trampoline, which is pushed + * below the kprobed function stack. So we only update gpr[1] but + * don't emulate the real store operation. We will do real store + * operation safely in exception return code by checking this flag. + */ + if ((ra == 1) && !(regs->msr & MSR_PR) \ + && (val3 >= (regs->gpr[1] - STACK_INT_FRAME_SIZE))) { + /* + * Check if we will touch kernel sack overflow + */ + if (val3 - STACK_INT_FRAME_SIZE <= current->thread.ksp_limit) { + printk(KERN_CRIT "Can't kprobe this since Kernel stack overflow.\n"); + err = -EINVAL; + break; + } + + /* + * Check if we already set since that means we'll + * lose the previous value. + */ + WARN_ON(test_thread_flag(TIF_EMULATE_STACK_STORE)); + set_thread_flag(TIF_EMULATE_STACK_STORE); + err = 0; + } else + err = write_mem(val, val3, 4, regs); + goto ldst_done; + case 38: /* stb */ case 39: /* stbu */ val = regs->gpr[rd]; diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index e5f028b..5495ebe9 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -133,6 +133,7 @@ static int do_sigbus(struct pt_regs *regs, unsigned long address) up_read(¤t->mm->mmap_sem); if (user_mode(regs)) { + current->thread.trap_nr = BUS_ADRERR; info.si_signo = SIGBUS; info.si_errno = 0; info.si_code = BUS_ADRERR; diff --git a/arch/powerpc/mm/hash_low_64.S b/arch/powerpc/mm/hash_low_64.S index 602aeb0..5658508 100644 --- a/arch/powerpc/mm/hash_low_64.S +++ b/arch/powerpc/mm/hash_low_64.S @@ -63,7 +63,7 @@ _GLOBAL(__hash_page_4K) /* Save non-volatile registers. * r31 will hold "old PTE" * r30 is "new PTE" - * r29 is "va" + * r29 is vpn * r28 is a hash value * r27 is hashtab mask (maybe dynamic patched instead ?) */ @@ -111,10 +111,10 @@ BEGIN_FTR_SECTION cmpdi r9,0 /* check segment size */ bne 3f END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT) - /* Calc va and put it in r29 */ - rldicr r29,r5,28,63-28 - rldicl r3,r3,0,36 - or r29,r3,r29 + /* Calc vpn and put it in r29 */ + sldi r29,r5,SID_SHIFT - VPN_SHIFT + rldicl r28,r3,64 - VPN_SHIFT,64 - (SID_SHIFT - VPN_SHIFT) + or r29,r28,r29 /* Calculate hash value for primary slot and store it in r28 */ rldicl r5,r5,0,25 /* vsid & 0x0000007fffffffff */ @@ -122,14 +122,19 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT) xor r28,r5,r0 b 4f -3: /* Calc VA and hash in r29 and r28 for 1T segment */ - sldi r29,r5,40 /* vsid << 40 */ - clrldi r3,r3,24 /* ea & 0xffffffffff */ +3: /* Calc vpn and put it in r29 */ + sldi r29,r5,SID_SHIFT_1T - VPN_SHIFT + rldicl r28,r3,64 - VPN_SHIFT,64 - (SID_SHIFT_1T - VPN_SHIFT) + or r29,r28,r29 + + /* + * calculate hash value for primary slot and + * store it in r28 for 1T segment + */ rldic r28,r5,25,25 /* (vsid << 25) & 0x7fffffffff */ clrldi r5,r5,40 /* vsid & 0xffffff */ rldicl r0,r3,64-12,36 /* (ea >> 12) & 0xfffffff */ xor r28,r28,r5 - or r29,r3,r29 /* VA */ xor r28,r28,r0 /* hash */ /* Convert linux PTE bits into HW equivalents */ @@ -185,7 +190,7 @@ htab_insert_pte: /* Call ppc_md.hpte_insert */ ld r6,STK_PARAM(R4)(r1) /* Retrieve new pp bits */ - mr r4,r29 /* Retrieve va */ + mr r4,r29 /* Retrieve vpn */ li r7,0 /* !bolted, !secondary */ li r8,MMU_PAGE_4K /* page size */ ld r9,STK_PARAM(R9)(r1) /* segment size */ @@ -208,7 +213,7 @@ _GLOBAL(htab_call_hpte_insert1) /* Call ppc_md.hpte_insert */ ld r6,STK_PARAM(R4)(r1) /* Retrieve new pp bits */ - mr r4,r29 /* Retrieve va */ + mr r4,r29 /* Retrieve vpn */ li r7,HPTE_V_SECONDARY /* !bolted, secondary */ li r8,MMU_PAGE_4K /* page size */ ld r9,STK_PARAM(R9)(r1) /* segment size */ @@ -278,7 +283,7 @@ htab_modify_pte: add r3,r0,r3 /* add slot idx */ /* Call ppc_md.hpte_updatepp */ - mr r5,r29 /* va */ + mr r5,r29 /* vpn */ li r6,MMU_PAGE_4K /* page size */ ld r7,STK_PARAM(R9)(r1) /* segment size */ ld r8,STK_PARAM(R8)(r1) /* get "local" param */ @@ -339,7 +344,7 @@ _GLOBAL(__hash_page_4K) /* Save non-volatile registers. * r31 will hold "old PTE" * r30 is "new PTE" - * r29 is "va" + * r29 is vpn * r28 is a hash value * r27 is hashtab mask (maybe dynamic patched instead ?) * r26 is the hidx mask @@ -394,10 +399,14 @@ BEGIN_FTR_SECTION cmpdi r9,0 /* check segment size */ bne 3f END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT) - /* Calc va and put it in r29 */ - rldicr r29,r5,28,63-28 /* r29 = (vsid << 28) */ - rldicl r3,r3,0,36 /* r3 = (ea & 0x0fffffff) */ - or r29,r3,r29 /* r29 = va */ + /* Calc vpn and put it in r29 */ + sldi r29,r5,SID_SHIFT - VPN_SHIFT + /* + * clrldi r3,r3,64 - SID_SHIFT --> ea & 0xfffffff + * srdi r28,r3,VPN_SHIFT + */ + rldicl r28,r3,64 - VPN_SHIFT,64 - (SID_SHIFT - VPN_SHIFT) + or r29,r28,r29 /* Calculate hash value for primary slot and store it in r28 */ rldicl r5,r5,0,25 /* vsid & 0x0000007fffffffff */ @@ -405,14 +414,23 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT) xor r28,r5,r0 b 4f -3: /* Calc VA and hash in r29 and r28 for 1T segment */ - sldi r29,r5,40 /* vsid << 40 */ - clrldi r3,r3,24 /* ea & 0xffffffffff */ +3: /* Calc vpn and put it in r29 */ + sldi r29,r5,SID_SHIFT_1T - VPN_SHIFT + /* + * clrldi r3,r3,64 - SID_SHIFT_1T --> ea & 0xffffffffff + * srdi r28,r3,VPN_SHIFT + */ + rldicl r28,r3,64 - VPN_SHIFT,64 - (SID_SHIFT_1T - VPN_SHIFT) + or r29,r28,r29 + + /* + * Calculate hash value for primary slot and + * store it in r28 for 1T segment + */ rldic r28,r5,25,25 /* (vsid << 25) & 0x7fffffffff */ clrldi r5,r5,40 /* vsid & 0xffffff */ rldicl r0,r3,64-12,36 /* (ea >> 12) & 0xfffffff */ xor r28,r28,r5 - or r29,r3,r29 /* VA */ xor r28,r28,r0 /* hash */ /* Convert linux PTE bits into HW equivalents */ @@ -488,7 +506,7 @@ htab_special_pfn: /* Call ppc_md.hpte_insert */ ld r6,STK_PARAM(R4)(r1) /* Retrieve new pp bits */ - mr r4,r29 /* Retrieve va */ + mr r4,r29 /* Retrieve vpn */ li r7,0 /* !bolted, !secondary */ li r8,MMU_PAGE_4K /* page size */ ld r9,STK_PARAM(R9)(r1) /* segment size */ @@ -515,7 +533,7 @@ _GLOBAL(htab_call_hpte_insert1) /* Call ppc_md.hpte_insert */ ld r6,STK_PARAM(R4)(r1) /* Retrieve new pp bits */ - mr r4,r29 /* Retrieve va */ + mr r4,r29 /* Retrieve vpn */ li r7,HPTE_V_SECONDARY /* !bolted, secondary */ li r8,MMU_PAGE_4K /* page size */ ld r9,STK_PARAM(R9)(r1) /* segment size */ @@ -547,7 +565,7 @@ _GLOBAL(htab_call_hpte_remove) * useless now that the segment has been switched to 4k pages. */ htab_inval_old_hpte: - mr r3,r29 /* virtual addr */ + mr r3,r29 /* vpn */ mr r4,r31 /* PTE.pte */ li r5,0 /* PTE.hidx */ li r6,MMU_PAGE_64K /* psize */ @@ -620,7 +638,7 @@ htab_modify_pte: add r3,r0,r3 /* add slot idx */ /* Call ppc_md.hpte_updatepp */ - mr r5,r29 /* va */ + mr r5,r29 /* vpn */ li r6,MMU_PAGE_4K /* page size */ ld r7,STK_PARAM(R9)(r1) /* segment size */ ld r8,STK_PARAM(R8)(r1) /* get "local" param */ @@ -676,7 +694,7 @@ _GLOBAL(__hash_page_64K) /* Save non-volatile registers. * r31 will hold "old PTE" * r30 is "new PTE" - * r29 is "va" + * r29 is vpn * r28 is a hash value * r27 is hashtab mask (maybe dynamic patched instead ?) */ @@ -729,10 +747,10 @@ BEGIN_FTR_SECTION cmpdi r9,0 /* check segment size */ bne 3f END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT) - /* Calc va and put it in r29 */ - rldicr r29,r5,28,63-28 - rldicl r3,r3,0,36 - or r29,r3,r29 + /* Calc vpn and put it in r29 */ + sldi r29,r5,SID_SHIFT - VPN_SHIFT + rldicl r28,r3,64 - VPN_SHIFT,64 - (SID_SHIFT - VPN_SHIFT) + or r29,r28,r29 /* Calculate hash value for primary slot and store it in r28 */ rldicl r5,r5,0,25 /* vsid & 0x0000007fffffffff */ @@ -740,14 +758,19 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT) xor r28,r5,r0 b 4f -3: /* Calc VA and hash in r29 and r28 for 1T segment */ - sldi r29,r5,40 /* vsid << 40 */ - clrldi r3,r3,24 /* ea & 0xffffffffff */ +3: /* Calc vpn and put it in r29 */ + sldi r29,r5,SID_SHIFT_1T - VPN_SHIFT + rldicl r28,r3,64 - VPN_SHIFT,64 - (SID_SHIFT_1T - VPN_SHIFT) + or r29,r28,r29 + + /* + * calculate hash value for primary slot and + * store it in r28 for 1T segment + */ rldic r28,r5,25,25 /* (vsid << 25) & 0x7fffffffff */ clrldi r5,r5,40 /* vsid & 0xffffff */ rldicl r0,r3,64-16,40 /* (ea >> 16) & 0xffffff */ xor r28,r28,r5 - or r29,r3,r29 /* VA */ xor r28,r28,r0 /* hash */ /* Convert linux PTE bits into HW equivalents */ @@ -806,7 +829,7 @@ ht64_insert_pte: /* Call ppc_md.hpte_insert */ ld r6,STK_PARAM(R4)(r1) /* Retrieve new pp bits */ - mr r4,r29 /* Retrieve va */ + mr r4,r29 /* Retrieve vpn */ li r7,0 /* !bolted, !secondary */ li r8,MMU_PAGE_64K ld r9,STK_PARAM(R9)(r1) /* segment size */ @@ -829,7 +852,7 @@ _GLOBAL(ht64_call_hpte_insert1) /* Call ppc_md.hpte_insert */ ld r6,STK_PARAM(R4)(r1) /* Retrieve new pp bits */ - mr r4,r29 /* Retrieve va */ + mr r4,r29 /* Retrieve vpn */ li r7,HPTE_V_SECONDARY /* !bolted, secondary */ li r8,MMU_PAGE_64K ld r9,STK_PARAM(R9)(r1) /* segment size */ @@ -899,7 +922,7 @@ ht64_modify_pte: add r3,r0,r3 /* add slot idx */ /* Call ppc_md.hpte_updatepp */ - mr r5,r29 /* va */ + mr r5,r29 /* vpn */ li r6,MMU_PAGE_64K ld r7,STK_PARAM(R9)(r1) /* segment size */ ld r8,STK_PARAM(R8)(r1) /* get "local" param */ diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 90039bc..ffc1e00f7 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -14,10 +14,10 @@ #include <linux/spinlock.h> #include <linux/bitops.h> +#include <linux/of.h> #include <linux/threads.h> #include <linux/smp.h> -#include <asm/abs_addr.h> #include <asm/machdep.h> #include <asm/mmu.h> #include <asm/mmu_context.h> @@ -39,22 +39,35 @@ DEFINE_RAW_SPINLOCK(native_tlbie_lock); -static inline void __tlbie(unsigned long va, int psize, int ssize) +static inline void __tlbie(unsigned long vpn, int psize, int ssize) { + unsigned long va; unsigned int penc; - /* clear top 16 bits, non SLS segment */ + /* + * We need 14 to 65 bits of va for a tlibe of 4K page + * With vpn we ignore the lower VPN_SHIFT bits already. + * And top two bits are already ignored because we can + * only accomadate 76 bits in a 64 bit vpn with a VPN_SHIFT + * of 12. + */ + va = vpn << VPN_SHIFT; + /* + * clear top 16 bits of 64bit va, non SLS segment + * Older versions of the architecture (2.02 and earler) require the + * masking of the top 16 bits. + */ va &= ~(0xffffULL << 48); switch (psize) { case MMU_PAGE_4K: - va &= ~0xffful; va |= ssize << 8; asm volatile(ASM_FTR_IFCLR("tlbie %0,0", PPC_TLBIE(%1,%0), %2) : : "r" (va), "r"(0), "i" (CPU_FTR_ARCH_206) : "memory"); break; default: + /* We need 14 to 14 + i bits of va */ penc = mmu_psize_defs[psize].penc; va &= ~((1ul << mmu_psize_defs[psize].shift) - 1); va |= penc << 12; @@ -67,21 +80,28 @@ static inline void __tlbie(unsigned long va, int psize, int ssize) } } -static inline void __tlbiel(unsigned long va, int psize, int ssize) +static inline void __tlbiel(unsigned long vpn, int psize, int ssize) { + unsigned long va; unsigned int penc; - /* clear top 16 bits, non SLS segment */ + /* VPN_SHIFT can be atmost 12 */ + va = vpn << VPN_SHIFT; + /* + * clear top 16 bits of 64 bit va, non SLS segment + * Older versions of the architecture (2.02 and earler) require the + * masking of the top 16 bits. + */ va &= ~(0xffffULL << 48); switch (psize) { case MMU_PAGE_4K: - va &= ~0xffful; va |= ssize << 8; asm volatile(".long 0x7c000224 | (%0 << 11) | (0 << 21)" : : "r"(va) : "memory"); break; default: + /* We need 14 to 14 + i bits of va */ penc = mmu_psize_defs[psize].penc; va &= ~((1ul << mmu_psize_defs[psize].shift) - 1); va |= penc << 12; @@ -94,7 +114,7 @@ static inline void __tlbiel(unsigned long va, int psize, int ssize) } -static inline void tlbie(unsigned long va, int psize, int ssize, int local) +static inline void tlbie(unsigned long vpn, int psize, int ssize, int local) { unsigned int use_local = local && mmu_has_feature(MMU_FTR_TLBIEL); int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE); @@ -105,10 +125,10 @@ static inline void tlbie(unsigned long va, int psize, int ssize, int local) raw_spin_lock(&native_tlbie_lock); asm volatile("ptesync": : :"memory"); if (use_local) { - __tlbiel(va, psize, ssize); + __tlbiel(vpn, psize, ssize); asm volatile("ptesync": : :"memory"); } else { - __tlbie(va, psize, ssize); + __tlbie(vpn, psize, ssize); asm volatile("eieio; tlbsync; ptesync": : :"memory"); } if (lock_tlbie && !use_local) @@ -134,7 +154,7 @@ static inline void native_unlock_hpte(struct hash_pte *hptep) clear_bit_unlock(HPTE_LOCK_BIT, word); } -static long native_hpte_insert(unsigned long hpte_group, unsigned long va, +static long native_hpte_insert(unsigned long hpte_group, unsigned long vpn, unsigned long pa, unsigned long rflags, unsigned long vflags, int psize, int ssize) { @@ -143,9 +163,9 @@ static long native_hpte_insert(unsigned long hpte_group, unsigned long va, int i; if (!(vflags & HPTE_V_BOLTED)) { - DBG_LOW(" insert(group=%lx, va=%016lx, pa=%016lx," + DBG_LOW(" insert(group=%lx, vpn=%016lx, pa=%016lx," " rflags=%lx, vflags=%lx, psize=%d)\n", - hpte_group, va, pa, rflags, vflags, psize); + hpte_group, vpn, pa, rflags, vflags, psize); } for (i = 0; i < HPTES_PER_GROUP; i++) { @@ -163,7 +183,7 @@ static long native_hpte_insert(unsigned long hpte_group, unsigned long va, if (i == HPTES_PER_GROUP) return -1; - hpte_v = hpte_encode_v(va, psize, ssize) | vflags | HPTE_V_VALID; + hpte_v = hpte_encode_v(vpn, psize, ssize) | vflags | HPTE_V_VALID; hpte_r = hpte_encode_r(pa, psize) | rflags; if (!(vflags & HPTE_V_BOLTED)) { @@ -225,17 +245,17 @@ static long native_hpte_remove(unsigned long hpte_group) } static long native_hpte_updatepp(unsigned long slot, unsigned long newpp, - unsigned long va, int psize, int ssize, + unsigned long vpn, int psize, int ssize, int local) { struct hash_pte *hptep = htab_address + slot; unsigned long hpte_v, want_v; int ret = 0; - want_v = hpte_encode_v(va, psize, ssize); + want_v = hpte_encode_v(vpn, psize, ssize); - DBG_LOW(" update(va=%016lx, avpnv=%016lx, hash=%016lx, newpp=%x)", - va, want_v & HPTE_V_AVPN, slot, newpp); + DBG_LOW(" update(vpn=%016lx, avpnv=%016lx, group=%lx, newpp=%lx)", + vpn, want_v & HPTE_V_AVPN, slot, newpp); native_lock_hpte(hptep); @@ -254,12 +274,12 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp, native_unlock_hpte(hptep); /* Ensure it is out of the tlb too. */ - tlbie(va, psize, ssize, local); + tlbie(vpn, psize, ssize, local); return ret; } -static long native_hpte_find(unsigned long va, int psize, int ssize) +static long native_hpte_find(unsigned long vpn, int psize, int ssize) { struct hash_pte *hptep; unsigned long hash; @@ -267,8 +287,8 @@ static long native_hpte_find(unsigned long va, int psize, int ssize) long slot; unsigned long want_v, hpte_v; - hash = hpt_hash(va, mmu_psize_defs[psize].shift, ssize); - want_v = hpte_encode_v(va, psize, ssize); + hash = hpt_hash(vpn, mmu_psize_defs[psize].shift, ssize); + want_v = hpte_encode_v(vpn, psize, ssize); /* Bolted mappings are only ever in the primary group */ slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; @@ -295,14 +315,15 @@ static long native_hpte_find(unsigned long va, int psize, int ssize) static void native_hpte_updateboltedpp(unsigned long newpp, unsigned long ea, int psize, int ssize) { - unsigned long vsid, va; + unsigned long vpn; + unsigned long vsid; long slot; struct hash_pte *hptep; vsid = get_kernel_vsid(ea, ssize); - va = hpt_va(ea, vsid, ssize); + vpn = hpt_vpn(ea, vsid, ssize); - slot = native_hpte_find(va, psize, ssize); + slot = native_hpte_find(vpn, psize, ssize); if (slot == -1) panic("could not find page to bolt\n"); hptep = htab_address + slot; @@ -312,10 +333,10 @@ static void native_hpte_updateboltedpp(unsigned long newpp, unsigned long ea, (newpp & (HPTE_R_PP | HPTE_R_N)); /* Ensure it is out of the tlb too. */ - tlbie(va, psize, ssize, 0); + tlbie(vpn, psize, ssize, 0); } -static void native_hpte_invalidate(unsigned long slot, unsigned long va, +static void native_hpte_invalidate(unsigned long slot, unsigned long vpn, int psize, int ssize, int local) { struct hash_pte *hptep = htab_address + slot; @@ -325,9 +346,9 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long va, local_irq_save(flags); - DBG_LOW(" invalidate(va=%016lx, hash: %x)\n", va, slot); + DBG_LOW(" invalidate(vpn=%016lx, hash: %lx)\n", vpn, slot); - want_v = hpte_encode_v(va, psize, ssize); + want_v = hpte_encode_v(vpn, psize, ssize); native_lock_hpte(hptep); hpte_v = hptep->v; @@ -339,7 +360,7 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long va, hptep->v = 0; /* Invalidate the TLB */ - tlbie(va, psize, ssize, local); + tlbie(vpn, psize, ssize, local); local_irq_restore(flags); } @@ -349,11 +370,12 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long va, #define LP_MASK(i) ((0xFF >> (i)) << LP_SHIFT) static void hpte_decode(struct hash_pte *hpte, unsigned long slot, - int *psize, int *ssize, unsigned long *va) + int *psize, int *ssize, unsigned long *vpn) { + unsigned long avpn, pteg, vpi; unsigned long hpte_r = hpte->r; unsigned long hpte_v = hpte->v; - unsigned long avpn; + unsigned long vsid, seg_off; int i, size, shift, penc; if (!(hpte_v & HPTE_V_LARGE)) @@ -380,32 +402,38 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot, } /* This works for all page sizes, and for 256M and 1T segments */ + *ssize = hpte_v >> HPTE_V_SSIZE_SHIFT; shift = mmu_psize_defs[size].shift; - avpn = (HPTE_V_AVPN_VAL(hpte_v) & ~mmu_psize_defs[size].avpnm) << 23; - - if (shift < 23) { - unsigned long vpi, vsid, pteg; - pteg = slot / HPTES_PER_GROUP; - if (hpte_v & HPTE_V_SECONDARY) - pteg = ~pteg; - switch (hpte_v >> HPTE_V_SSIZE_SHIFT) { - case MMU_SEGSIZE_256M: - vpi = ((avpn >> 28) ^ pteg) & htab_hash_mask; - break; - case MMU_SEGSIZE_1T: - vsid = avpn >> 40; + avpn = (HPTE_V_AVPN_VAL(hpte_v) & ~mmu_psize_defs[size].avpnm); + pteg = slot / HPTES_PER_GROUP; + if (hpte_v & HPTE_V_SECONDARY) + pteg = ~pteg; + + switch (*ssize) { + case MMU_SEGSIZE_256M: + /* We only have 28 - 23 bits of seg_off in avpn */ + seg_off = (avpn & 0x1f) << 23; + vsid = avpn >> 5; + /* We can find more bits from the pteg value */ + if (shift < 23) { + vpi = (vsid ^ pteg) & htab_hash_mask; + seg_off |= vpi << shift; + } + *vpn = vsid << (SID_SHIFT - VPN_SHIFT) | seg_off >> VPN_SHIFT; + case MMU_SEGSIZE_1T: + /* We only have 40 - 23 bits of seg_off in avpn */ + seg_off = (avpn & 0x1ffff) << 23; + vsid = avpn >> 17; + if (shift < 23) { vpi = (vsid ^ (vsid << 25) ^ pteg) & htab_hash_mask; - break; - default: - avpn = vpi = size = 0; + seg_off |= vpi << shift; } - avpn |= (vpi << mmu_psize_defs[size].shift); + *vpn = vsid << (SID_SHIFT_1T - VPN_SHIFT) | seg_off >> VPN_SHIFT; + default: + *vpn = size = 0; } - - *va = avpn; *psize = size; - *ssize = hpte_v >> HPTE_V_SSIZE_SHIFT; } /* @@ -418,9 +446,10 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot, */ static void native_hpte_clear(void) { + unsigned long vpn = 0; unsigned long slot, slots, flags; struct hash_pte *hptep = htab_address; - unsigned long hpte_v, va; + unsigned long hpte_v; unsigned long pteg_count; int psize, ssize; @@ -448,9 +477,9 @@ static void native_hpte_clear(void) * already hold the native_tlbie_lock. */ if (hpte_v & HPTE_V_VALID) { - hpte_decode(hptep, slot, &psize, &ssize, &va); + hpte_decode(hptep, slot, &psize, &ssize, &vpn); hptep->v = 0; - __tlbie(va, psize, ssize); + __tlbie(vpn, psize, ssize); } } @@ -465,7 +494,8 @@ static void native_hpte_clear(void) */ static void native_flush_hash_range(unsigned long number, int local) { - unsigned long va, hash, index, hidx, shift, slot; + unsigned long vpn; + unsigned long hash, index, hidx, shift, slot; struct hash_pte *hptep; unsigned long hpte_v; unsigned long want_v; @@ -479,18 +509,18 @@ static void native_flush_hash_range(unsigned long number, int local) local_irq_save(flags); for (i = 0; i < number; i++) { - va = batch->vaddr[i]; + vpn = batch->vpn[i]; pte = batch->pte[i]; - pte_iterate_hashed_subpages(pte, psize, va, index, shift) { - hash = hpt_hash(va, shift, ssize); + pte_iterate_hashed_subpages(pte, psize, vpn, index, shift) { + hash = hpt_hash(vpn, shift, ssize); hidx = __rpte_to_hidx(pte, index); if (hidx & _PTEIDX_SECONDARY) hash = ~hash; slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; hptep = htab_address + slot; - want_v = hpte_encode_v(va, psize, ssize); + want_v = hpte_encode_v(vpn, psize, ssize); native_lock_hpte(hptep); hpte_v = hptep->v; if (!HPTE_V_COMPARE(hpte_v, want_v) || @@ -505,12 +535,12 @@ static void native_flush_hash_range(unsigned long number, int local) mmu_psize_defs[psize].tlbiel && local) { asm volatile("ptesync":::"memory"); for (i = 0; i < number; i++) { - va = batch->vaddr[i]; + vpn = batch->vpn[i]; pte = batch->pte[i]; - pte_iterate_hashed_subpages(pte, psize, va, index, - shift) { - __tlbiel(va, psize, ssize); + pte_iterate_hashed_subpages(pte, psize, + vpn, index, shift) { + __tlbiel(vpn, psize, ssize); } pte_iterate_hashed_end(); } asm volatile("ptesync":::"memory"); @@ -522,12 +552,12 @@ static void native_flush_hash_range(unsigned long number, int local) asm volatile("ptesync":::"memory"); for (i = 0; i < number; i++) { - va = batch->vaddr[i]; + vpn = batch->vpn[i]; pte = batch->pte[i]; - pte_iterate_hashed_subpages(pte, psize, va, index, - shift) { - __tlbie(va, psize, ssize); + pte_iterate_hashed_subpages(pte, psize, + vpn, index, shift) { + __tlbie(vpn, psize, ssize); } pte_iterate_hashed_end(); } asm volatile("eieio; tlbsync; ptesync":::"memory"); @@ -539,29 +569,6 @@ static void native_flush_hash_range(unsigned long number, int local) local_irq_restore(flags); } -#ifdef CONFIG_PPC_PSERIES -/* Disable TLB batching on nighthawk */ -static inline int tlb_batching_enabled(void) -{ - struct device_node *root = of_find_node_by_path("/"); - int enabled = 1; - - if (root) { - const char *model = of_get_property(root, "model", NULL); - if (model && !strcmp(model, "IBM,9076-N81")) - enabled = 0; - of_node_put(root); - } - - return enabled; -} -#else -static inline int tlb_batching_enabled(void) -{ - return 1; -} -#endif - void __init hpte_init_native(void) { ppc_md.hpte_invalidate = native_hpte_invalidate; @@ -570,6 +577,5 @@ void __init hpte_init_native(void) ppc_md.hpte_insert = native_hpte_insert; ppc_md.hpte_remove = native_hpte_remove; ppc_md.hpte_clear_all = native_hpte_clear; - if (tlb_batching_enabled()) - ppc_md.flush_hash_range = native_flush_hash_range; + ppc_md.flush_hash_range = native_flush_hash_range; } diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 377e5cb..3a292be 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -43,7 +43,6 @@ #include <asm/uaccess.h> #include <asm/machdep.h> #include <asm/prom.h> -#include <asm/abs_addr.h> #include <asm/tlbflush.h> #include <asm/io.h> #include <asm/eeh.h> @@ -192,18 +191,18 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend, vaddr += step, paddr += step) { unsigned long hash, hpteg; unsigned long vsid = get_kernel_vsid(vaddr, ssize); - unsigned long va = hpt_va(vaddr, vsid, ssize); + unsigned long vpn = hpt_vpn(vaddr, vsid, ssize); unsigned long tprot = prot; /* Make kernel text executable */ if (overlaps_kernel_text(vaddr, vaddr + step)) tprot &= ~HPTE_R_N; - hash = hpt_hash(va, shift, ssize); + hash = hpt_hash(vpn, shift, ssize); hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP); BUG_ON(!ppc_md.hpte_insert); - ret = ppc_md.hpte_insert(hpteg, va, paddr, tprot, + ret = ppc_md.hpte_insert(hpteg, vpn, paddr, tprot, HPTE_V_BOLTED, psize, ssize); if (ret < 0) @@ -651,7 +650,7 @@ static void __init htab_initialize(void) DBG("Hash table allocated at %lx, size: %lx\n", table, htab_size_bytes); - htab_address = abs_to_virt(table); + htab_address = __va(table); /* htab absolute addr + encoded htabsize */ _SDR1 = table + __ilog2(pteg_count) - 11; @@ -804,16 +803,19 @@ unsigned int hash_page_do_lazy_icache(unsigned int pp, pte_t pte, int trap) #ifdef CONFIG_PPC_MM_SLICES unsigned int get_paca_psize(unsigned long addr) { - unsigned long index, slices; + u64 lpsizes; + unsigned char *hpsizes; + unsigned long index, mask_index; if (addr < SLICE_LOW_TOP) { - slices = get_paca()->context.low_slices_psize; + lpsizes = get_paca()->context.low_slices_psize; index = GET_LOW_SLICE_INDEX(addr); - } else { - slices = get_paca()->context.high_slices_psize; - index = GET_HIGH_SLICE_INDEX(addr); + return (lpsizes >> (index * 4)) & 0xF; } - return (slices >> (index * 4)) & 0xF; + hpsizes = get_paca()->context.high_slices_psize; + index = GET_HIGH_SLICE_INDEX(addr); + mask_index = index & 0x1; + return (hpsizes[index >> 1] >> (mask_index * 4)) & 0xF; } #else @@ -1153,21 +1155,21 @@ void hash_preload(struct mm_struct *mm, unsigned long ea, /* WARNING: This is called from hash_low_64.S, if you change this prototype, * do not forget to update the assembly call site ! */ -void flush_hash_page(unsigned long va, real_pte_t pte, int psize, int ssize, +void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize, int ssize, int local) { unsigned long hash, index, shift, hidx, slot; - DBG_LOW("flush_hash_page(va=%016lx)\n", va); - pte_iterate_hashed_subpages(pte, psize, va, index, shift) { - hash = hpt_hash(va, shift, ssize); + DBG_LOW("flush_hash_page(vpn=%016lx)\n", vpn); + pte_iterate_hashed_subpages(pte, psize, vpn, index, shift) { + hash = hpt_hash(vpn, shift, ssize); hidx = __rpte_to_hidx(pte, index); if (hidx & _PTEIDX_SECONDARY) hash = ~hash; slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; DBG_LOW(" sub %ld: hash=%lx, hidx=%lx\n", index, slot, hidx); - ppc_md.hpte_invalidate(slot, va, psize, ssize, local); + ppc_md.hpte_invalidate(slot, vpn, psize, ssize, local); } pte_iterate_hashed_end(); } @@ -1181,7 +1183,7 @@ void flush_hash_range(unsigned long number, int local) &__get_cpu_var(ppc64_tlb_batch); for (i = 0; i < number; i++) - flush_hash_page(batch->vaddr[i], batch->pte[i], + flush_hash_page(batch->vpn[i], batch->pte[i], batch->psize, batch->ssize, local); } } @@ -1208,14 +1210,14 @@ static void kernel_map_linear_page(unsigned long vaddr, unsigned long lmi) { unsigned long hash, hpteg; unsigned long vsid = get_kernel_vsid(vaddr, mmu_kernel_ssize); - unsigned long va = hpt_va(vaddr, vsid, mmu_kernel_ssize); + unsigned long vpn = hpt_vpn(vaddr, vsid, mmu_kernel_ssize); unsigned long mode = htab_convert_pte_flags(PAGE_KERNEL); int ret; - hash = hpt_hash(va, PAGE_SHIFT, mmu_kernel_ssize); + hash = hpt_hash(vpn, PAGE_SHIFT, mmu_kernel_ssize); hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP); - ret = ppc_md.hpte_insert(hpteg, va, __pa(vaddr), + ret = ppc_md.hpte_insert(hpteg, vpn, __pa(vaddr), mode, HPTE_V_BOLTED, mmu_linear_psize, mmu_kernel_ssize); BUG_ON (ret < 0); @@ -1229,9 +1231,9 @@ static void kernel_unmap_linear_page(unsigned long vaddr, unsigned long lmi) { unsigned long hash, hidx, slot; unsigned long vsid = get_kernel_vsid(vaddr, mmu_kernel_ssize); - unsigned long va = hpt_va(vaddr, vsid, mmu_kernel_ssize); + unsigned long vpn = hpt_vpn(vaddr, vsid, mmu_kernel_ssize); - hash = hpt_hash(va, PAGE_SHIFT, mmu_kernel_ssize); + hash = hpt_hash(vpn, PAGE_SHIFT, mmu_kernel_ssize); spin_lock(&linear_map_hash_lock); BUG_ON(!(linear_map_hash_slots[lmi] & 0x80)); hidx = linear_map_hash_slots[lmi] & 0x7f; @@ -1241,7 +1243,7 @@ static void kernel_unmap_linear_page(unsigned long vaddr, unsigned long lmi) hash = ~hash; slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; - ppc_md.hpte_invalidate(slot, va, mmu_linear_psize, mmu_kernel_ssize, 0); + ppc_md.hpte_invalidate(slot, vpn, mmu_linear_psize, mmu_kernel_ssize, 0); } void kernel_map_pages(struct page *page, int numpages, int enable) diff --git a/arch/powerpc/mm/hugetlbpage-hash64.c b/arch/powerpc/mm/hugetlbpage-hash64.c index cc5c273..cecad34 100644 --- a/arch/powerpc/mm/hugetlbpage-hash64.c +++ b/arch/powerpc/mm/hugetlbpage-hash64.c @@ -18,14 +18,15 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid, pte_t *ptep, unsigned long trap, int local, int ssize, unsigned int shift, unsigned int mmu_psize) { + unsigned long vpn; unsigned long old_pte, new_pte; - unsigned long va, rflags, pa, sz; + unsigned long rflags, pa, sz; long slot; BUG_ON(shift != mmu_psize_defs[mmu_psize].shift); /* Search the Linux page table for a match with va */ - va = hpt_va(ea, vsid, ssize); + vpn = hpt_vpn(ea, vsid, ssize); /* At this point, we have a pte (old_pte) which can be used to build * or update an HPTE. There are 2 cases: @@ -69,19 +70,19 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid, /* There MIGHT be an HPTE for this pte */ unsigned long hash, slot; - hash = hpt_hash(va, shift, ssize); + hash = hpt_hash(vpn, shift, ssize); if (old_pte & _PAGE_F_SECOND) hash = ~hash; slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += (old_pte & _PAGE_F_GIX) >> 12; - if (ppc_md.hpte_updatepp(slot, rflags, va, mmu_psize, + if (ppc_md.hpte_updatepp(slot, rflags, vpn, mmu_psize, ssize, local) == -1) old_pte &= ~_PAGE_HPTEFLAGS; } if (likely(!(old_pte & _PAGE_HASHPTE))) { - unsigned long hash = hpt_hash(va, shift, ssize); + unsigned long hash = hpt_hash(vpn, shift, ssize); unsigned long hpte_group; pa = pte_pfn(__pte(old_pte)) << PAGE_SHIFT; @@ -101,14 +102,14 @@ repeat: _PAGE_COHERENT | _PAGE_GUARDED)); /* Insert into the hash table, primary slot */ - slot = ppc_md.hpte_insert(hpte_group, va, pa, rflags, 0, + slot = ppc_md.hpte_insert(hpte_group, vpn, pa, rflags, 0, mmu_psize, ssize); /* Primary is full, try the secondary */ if (unlikely(slot == -1)) { hpte_group = ((~hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - slot = ppc_md.hpte_insert(hpte_group, va, pa, rflags, + slot = ppc_md.hpte_insert(hpte_group, vpn, pa, rflags, HPTE_V_SECONDARY, mmu_psize, ssize); if (slot == -1) { diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 620b7ac..95a4529 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -62,7 +62,6 @@ #include <asm/cputable.h> #include <asm/sections.h> #include <asm/iommu.h> -#include <asm/abs_addr.h> #include <asm/vdso.h> #include "mmu_decl.h" diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index fbdad0e..0dba506 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -62,7 +62,7 @@ int init_bootmem_done; int mem_init_done; -phys_addr_t memory_limit; +unsigned long long memory_limit; #ifdef CONFIG_HIGHMEM pte_t *kmap_pte; @@ -300,8 +300,7 @@ void __init mem_init(void) unsigned long reservedpages = 0, codesize, initsize, datasize, bsssize; #ifdef CONFIG_SWIOTLB - if (ppc_swiotlb_enable) - swiotlb_init(1); + swiotlb_init(0); #endif num_physpages = memblock_phys_mem_size() >> PAGE_SHIFT; diff --git a/arch/powerpc/mm/mmu_context_hash64.c b/arch/powerpc/mm/mmu_context_hash64.c index 40677aa..40bc5b0 100644 --- a/arch/powerpc/mm/mmu_context_hash64.c +++ b/arch/powerpc/mm/mmu_context_hash64.c @@ -30,11 +30,13 @@ static DEFINE_SPINLOCK(mmu_context_lock); static DEFINE_IDA(mmu_context_ida); /* - * The proto-VSID space has 2^35 - 1 segments available for user mappings. - * Each segment contains 2^28 bytes. Each context maps 2^44 bytes, - * so we can support 2^19-1 contexts (19 == 35 + 28 - 44). + * 256MB segment + * The proto-VSID space has 2^(CONTEX_BITS + USER_ESID_BITS) - 1 segments + * available for user mappings. Each segment contains 2^28 bytes. Each + * context maps 2^46 bytes (64TB) so we can support 2^19-1 contexts + * (19 == 37 + 28 - 46). */ -#define MAX_CONTEXT ((1UL << 19) - 1) +#define MAX_CONTEXT ((1UL << CONTEXT_BITS) - 1) int __init_new_context(void) { diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index 249a063..e212a27 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -51,13 +51,22 @@ #include <asm/processor.h> #include <asm/cputable.h> #include <asm/sections.h> -#include <asm/abs_addr.h> #include <asm/firmware.h> #include "mmu_decl.h" -unsigned long ioremap_bot = IOREMAP_BASE; +/* Some sanity checking */ +#if TASK_SIZE_USER64 > PGTABLE_RANGE +#error TASK_SIZE_USER64 exceeds pagetable range +#endif + +#ifdef CONFIG_PPC_STD_MMU_64 +#if TASK_SIZE_USER64 > (1UL << (USER_ESID_BITS + SID_SHIFT)) +#error TASK_SIZE_USER64 exceeds user VSID range +#endif +#endif +unsigned long ioremap_bot = IOREMAP_BASE; #ifdef CONFIG_PPC_MMU_NOHASH static void *early_alloc_pgtable(unsigned long size) diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S index b9ee79ce..1a16ca2 100644 --- a/arch/powerpc/mm/slb_low.S +++ b/arch/powerpc/mm/slb_low.S @@ -56,6 +56,12 @@ _GLOBAL(slb_allocate_realmode) */ _GLOBAL(slb_miss_kernel_load_linear) li r11,0 + li r9,0x1 + /* + * for 1T we shift 12 bits more. slb_finish_load_1T will do + * the necessary adjustment + */ + rldimi r10,r9,(CONTEXT_BITS + USER_ESID_BITS),0 BEGIN_FTR_SECTION b slb_finish_load END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT) @@ -85,6 +91,12 @@ _GLOBAL(slb_miss_kernel_load_vmemmap) _GLOBAL(slb_miss_kernel_load_io) li r11,0 6: + li r9,0x1 + /* + * for 1T we shift 12 bits more. slb_finish_load_1T will do + * the necessary adjustment + */ + rldimi r10,r9,(CONTEXT_BITS + USER_ESID_BITS),0 BEGIN_FTR_SECTION b slb_finish_load END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT) @@ -108,17 +120,31 @@ END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT) * between 4k and 64k standard page size */ #ifdef CONFIG_PPC_MM_SLICES + /* r10 have esid */ cmpldi r10,16 - - /* Get the slice index * 4 in r11 and matching slice size mask in r9 */ - ld r9,PACALOWSLICESPSIZE(r13) - sldi r11,r10,2 + /* below SLICE_LOW_TOP */ blt 5f - ld r9,PACAHIGHSLICEPSIZE(r13) - srdi r11,r10,(SLICE_HIGH_SHIFT - SLICE_LOW_SHIFT - 2) - andi. r11,r11,0x3c + /* + * Handle hpsizes, + * r9 is get_paca()->context.high_slices_psize[index], r11 is mask_index + */ + srdi r11,r10,(SLICE_HIGH_SHIFT - SLICE_LOW_SHIFT + 1) /* index */ + addi r9,r11,PACAHIGHSLICEPSIZE + lbzx r9,r13,r9 /* r9 is hpsizes[r11] */ + /* r11 = (r10 >> (SLICE_HIGH_SHIFT - SLICE_LOW_SHIFT)) & 0x1 */ + rldicl r11,r10,(64 - (SLICE_HIGH_SHIFT - SLICE_LOW_SHIFT)),63 + b 6f -5: /* Extract the psize and multiply to get an array offset */ +5: + /* + * Handle lpsizes + * r9 is get_paca()->context.low_slices_psize, r11 is index + */ + ld r9,PACALOWSLICESPSIZE(r13) + mr r11,r10 +6: + sldi r11,r11,2 /* index * 4 */ + /* Extract the psize and multiply to get an array offset */ srd r9,r9,r11 andi. r9,r9,0xf mulli r9,r9,MMUPSIZEDEFSIZE @@ -209,7 +235,11 @@ _GLOBAL(slb_allocate_user) */ slb_finish_load: ASM_VSID_SCRAMBLE(r10,r9,256M) - rldimi r11,r10,SLB_VSID_SHIFT,16 /* combine VSID and flags */ + /* + * bits above VSID_BITS_256M need to be ignored from r10 + * also combine VSID and flags + */ + rldimi r11,r10,SLB_VSID_SHIFT,(64 - (SLB_VSID_SHIFT + VSID_BITS_256M)) /* r3 = EA, r11 = VSID data */ /* @@ -252,10 +282,10 @@ _GLOBAL(slb_compare_rr_to_size) bge 1f /* still room in the slb cache */ - sldi r11,r3,1 /* r11 = offset * sizeof(u16) */ - rldicl r10,r10,36,28 /* get low 16 bits of the ESID */ - add r11,r11,r13 /* r11 = (u16 *)paca + offset */ - sth r10,PACASLBCACHE(r11) /* paca->slb_cache[offset] = esid */ + sldi r11,r3,2 /* r11 = offset * sizeof(u32) */ + srdi r10,r10,28 /* get the 36 bits of the ESID */ + add r11,r11,r13 /* r11 = (u32 *)paca + offset */ + stw r10,PACASLBCACHE(r11) /* paca->slb_cache[offset] = esid */ addi r3,r3,1 /* offset++ */ b 2f 1: /* offset >= SLB_CACHE_ENTRIES */ @@ -273,7 +303,11 @@ _GLOBAL(slb_compare_rr_to_size) slb_finish_load_1T: srdi r10,r10,40-28 /* get 1T ESID */ ASM_VSID_SCRAMBLE(r10,r9,1T) - rldimi r11,r10,SLB_VSID_SHIFT_1T,16 /* combine VSID and flags */ + /* + * bits above VSID_BITS_1T need to be ignored from r10 + * also combine VSID and flags + */ + rldimi r11,r10,SLB_VSID_SHIFT_1T,(64 - (SLB_VSID_SHIFT_1T + VSID_BITS_1T)) li r10,MMU_SEGSIZE_1T rldimi r11,r10,SLB_VSID_SSIZE_SHIFT,0 /* insert segment size */ diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c index 73709f7..5829d2a 100644 --- a/arch/powerpc/mm/slice.c +++ b/arch/powerpc/mm/slice.c @@ -34,6 +34,11 @@ #include <asm/mmu.h> #include <asm/spu.h> +/* some sanity checks */ +#if (PGTABLE_RANGE >> 43) > SLICE_MASK_SIZE +#error PGTABLE_RANGE exceeds slice_mask high_slices size +#endif + static DEFINE_SPINLOCK(slice_convert_lock); @@ -42,7 +47,7 @@ int _slice_debug = 1; static void slice_print_mask(const char *label, struct slice_mask mask) { - char *p, buf[16 + 3 + 16 + 1]; + char *p, buf[16 + 3 + 64 + 1]; int i; if (!_slice_debug) @@ -54,7 +59,7 @@ static void slice_print_mask(const char *label, struct slice_mask mask) *(p++) = '-'; *(p++) = ' '; for (i = 0; i < SLICE_NUM_HIGH; i++) - *(p++) = (mask.high_slices & (1 << i)) ? '1' : '0'; + *(p++) = (mask.high_slices & (1ul << i)) ? '1' : '0'; *(p++) = 0; printk(KERN_DEBUG "%s:%s\n", label, buf); @@ -84,8 +89,8 @@ static struct slice_mask slice_range_to_mask(unsigned long start, } if ((start + len) > SLICE_LOW_TOP) - ret.high_slices = (1u << (GET_HIGH_SLICE_INDEX(end) + 1)) - - (1u << GET_HIGH_SLICE_INDEX(start)); + ret.high_slices = (1ul << (GET_HIGH_SLICE_INDEX(end) + 1)) + - (1ul << GET_HIGH_SLICE_INDEX(start)); return ret; } @@ -135,26 +140,31 @@ static struct slice_mask slice_mask_for_free(struct mm_struct *mm) for (i = 0; i < SLICE_NUM_HIGH; i++) if (!slice_high_has_vma(mm, i)) - ret.high_slices |= 1u << i; + ret.high_slices |= 1ul << i; return ret; } static struct slice_mask slice_mask_for_size(struct mm_struct *mm, int psize) { + unsigned char *hpsizes; + int index, mask_index; struct slice_mask ret = { 0, 0 }; unsigned long i; - u64 psizes; + u64 lpsizes; - psizes = mm->context.low_slices_psize; + lpsizes = mm->context.low_slices_psize; for (i = 0; i < SLICE_NUM_LOW; i++) - if (((psizes >> (i * 4)) & 0xf) == psize) + if (((lpsizes >> (i * 4)) & 0xf) == psize) ret.low_slices |= 1u << i; - psizes = mm->context.high_slices_psize; - for (i = 0; i < SLICE_NUM_HIGH; i++) - if (((psizes >> (i * 4)) & 0xf) == psize) - ret.high_slices |= 1u << i; + hpsizes = mm->context.high_slices_psize; + for (i = 0; i < SLICE_NUM_HIGH; i++) { + mask_index = i & 0x1; + index = i >> 1; + if (((hpsizes[index] >> (mask_index * 4)) & 0xf) == psize) + ret.high_slices |= 1ul << i; + } return ret; } @@ -183,8 +193,10 @@ static void slice_flush_segments(void *parm) static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psize) { + int index, mask_index; /* Write the new slice psize bits */ - u64 lpsizes, hpsizes; + unsigned char *hpsizes; + u64 lpsizes; unsigned long i, flags; slice_dbg("slice_convert(mm=%p, psize=%d)\n", mm, psize); @@ -201,14 +213,18 @@ static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psiz lpsizes = (lpsizes & ~(0xful << (i * 4))) | (((unsigned long)psize) << (i * 4)); - hpsizes = mm->context.high_slices_psize; - for (i = 0; i < SLICE_NUM_HIGH; i++) - if (mask.high_slices & (1u << i)) - hpsizes = (hpsizes & ~(0xful << (i * 4))) | - (((unsigned long)psize) << (i * 4)); - + /* Assign the value back */ mm->context.low_slices_psize = lpsizes; - mm->context.high_slices_psize = hpsizes; + + hpsizes = mm->context.high_slices_psize; + for (i = 0; i < SLICE_NUM_HIGH; i++) { + mask_index = i & 0x1; + index = i >> 1; + if (mask.high_slices & (1ul << i)) + hpsizes[index] = (hpsizes[index] & + ~(0xf << (mask_index * 4))) | + (((unsigned long)psize) << (mask_index * 4)); + } slice_dbg(" lsps=%lx, hsps=%lx\n", mm->context.low_slices_psize, @@ -587,18 +603,19 @@ unsigned long arch_get_unmapped_area_topdown(struct file *filp, unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr) { - u64 psizes; - int index; + unsigned char *hpsizes; + int index, mask_index; if (addr < SLICE_LOW_TOP) { - psizes = mm->context.low_slices_psize; + u64 lpsizes; + lpsizes = mm->context.low_slices_psize; index = GET_LOW_SLICE_INDEX(addr); - } else { - psizes = mm->context.high_slices_psize; - index = GET_HIGH_SLICE_INDEX(addr); + return (lpsizes >> (index * 4)) & 0xf; } - - return (psizes >> (index * 4)) & 0xf; + hpsizes = mm->context.high_slices_psize; + index = GET_HIGH_SLICE_INDEX(addr); + mask_index = index & 0x1; + return (hpsizes[index >> 1] >> (mask_index * 4)) & 0xf; } EXPORT_SYMBOL_GPL(get_slice_psize); @@ -618,7 +635,9 @@ EXPORT_SYMBOL_GPL(get_slice_psize); */ void slice_set_user_psize(struct mm_struct *mm, unsigned int psize) { - unsigned long flags, lpsizes, hpsizes; + int index, mask_index; + unsigned char *hpsizes; + unsigned long flags, lpsizes; unsigned int old_psize; int i; @@ -639,15 +658,21 @@ void slice_set_user_psize(struct mm_struct *mm, unsigned int psize) if (((lpsizes >> (i * 4)) & 0xf) == old_psize) lpsizes = (lpsizes & ~(0xful << (i * 4))) | (((unsigned long)psize) << (i * 4)); + /* Assign the value back */ + mm->context.low_slices_psize = lpsizes; hpsizes = mm->context.high_slices_psize; - for (i = 0; i < SLICE_NUM_HIGH; i++) - if (((hpsizes >> (i * 4)) & 0xf) == old_psize) - hpsizes = (hpsizes & ~(0xful << (i * 4))) | - (((unsigned long)psize) << (i * 4)); + for (i = 0; i < SLICE_NUM_HIGH; i++) { + mask_index = i & 0x1; + index = i >> 1; + if (((hpsizes[index] >> (mask_index * 4)) & 0xf) == old_psize) + hpsizes[index] = (hpsizes[index] & + ~(0xf << (mask_index * 4))) | + (((unsigned long)psize) << (mask_index * 4)); + } + + - mm->context.low_slices_psize = lpsizes; - mm->context.high_slices_psize = hpsizes; slice_dbg(" lsps=%lx, hsps=%lx\n", mm->context.low_slices_psize, @@ -660,18 +685,27 @@ void slice_set_user_psize(struct mm_struct *mm, unsigned int psize) void slice_set_psize(struct mm_struct *mm, unsigned long address, unsigned int psize) { + unsigned char *hpsizes; unsigned long i, flags; - u64 *p; + u64 *lpsizes; spin_lock_irqsave(&slice_convert_lock, flags); if (address < SLICE_LOW_TOP) { i = GET_LOW_SLICE_INDEX(address); - p = &mm->context.low_slices_psize; + lpsizes = &mm->context.low_slices_psize; + *lpsizes = (*lpsizes & ~(0xful << (i * 4))) | + ((unsigned long) psize << (i * 4)); } else { + int index, mask_index; i = GET_HIGH_SLICE_INDEX(address); - p = &mm->context.high_slices_psize; + hpsizes = mm->context.high_slices_psize; + mask_index = i & 0x1; + index = i >> 1; + hpsizes[index] = (hpsizes[index] & + ~(0xf << (mask_index * 4))) | + (((unsigned long)psize) << (mask_index * 4)); } - *p = (*p & ~(0xful << (i * 4))) | ((unsigned long) psize << (i * 4)); + spin_unlock_irqrestore(&slice_convert_lock, flags); #ifdef CONFIG_SPU_BASE diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c index 9106ebb..3f8efa6 100644 --- a/arch/powerpc/mm/stab.c +++ b/arch/powerpc/mm/stab.c @@ -20,7 +20,6 @@ #include <asm/paca.h> #include <asm/cputable.h> #include <asm/prom.h> -#include <asm/abs_addr.h> struct stab_entry { unsigned long esid_data; @@ -257,7 +256,7 @@ void __init stabs_alloc(void) memset((void *)newstab, 0, HW_PAGE_SIZE); paca[cpu].stab_addr = newstab; - paca[cpu].stab_real = virt_to_abs(newstab); + paca[cpu].stab_real = __pa(newstab); printk(KERN_INFO "Segment table for CPU %d at 0x%llx " "virtual, 0x%llx absolute\n", cpu, paca[cpu].stab_addr, paca[cpu].stab_real); diff --git a/arch/powerpc/mm/subpage-prot.c b/arch/powerpc/mm/subpage-prot.c index e4f8f1f..7c415dd 100644 --- a/arch/powerpc/mm/subpage-prot.c +++ b/arch/powerpc/mm/subpage-prot.c @@ -95,7 +95,8 @@ static void subpage_prot_clear(unsigned long addr, unsigned long len) struct mm_struct *mm = current->mm; struct subpage_prot_table *spt = &mm->context.spt; u32 **spm, *spp; - int i, nw; + unsigned long i; + size_t nw; unsigned long next, limit; down_write(&mm->mmap_sem); @@ -144,7 +145,8 @@ long sys_subpage_prot(unsigned long addr, unsigned long len, u32 __user *map) struct mm_struct *mm = current->mm; struct subpage_prot_table *spt = &mm->context.spt; u32 **spm, *spp; - int i, nw; + unsigned long i; + size_t nw; unsigned long next, limit; int err; diff --git a/arch/powerpc/mm/tlb_hash64.c b/arch/powerpc/mm/tlb_hash64.c index 31f1820..ae758b3 100644 --- a/arch/powerpc/mm/tlb_hash64.c +++ b/arch/powerpc/mm/tlb_hash64.c @@ -42,8 +42,9 @@ DEFINE_PER_CPU(struct ppc64_tlb_batch, ppc64_tlb_batch); void hpte_need_flush(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned long pte, int huge) { + unsigned long vpn; struct ppc64_tlb_batch *batch = &get_cpu_var(ppc64_tlb_batch); - unsigned long vsid, vaddr; + unsigned long vsid; unsigned int psize; int ssize; real_pte_t rpte; @@ -86,7 +87,7 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr, vsid = get_kernel_vsid(addr, mmu_kernel_ssize); ssize = mmu_kernel_ssize; } - vaddr = hpt_va(addr, vsid, ssize); + vpn = hpt_vpn(addr, vsid, ssize); rpte = __real_pte(__pte(pte), ptep); /* @@ -96,7 +97,7 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr, * and decide to use local invalidates instead... */ if (!batch->active) { - flush_hash_page(vaddr, rpte, psize, ssize, 0); + flush_hash_page(vpn, rpte, psize, ssize, 0); put_cpu_var(ppc64_tlb_batch); return; } @@ -122,7 +123,7 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr, batch->ssize = ssize; } batch->pte[i] = rpte; - batch->vaddr[i] = vaddr; + batch->vpn[i] = vpn; batch->index = ++i; if (i >= PPC64_TLB_BATCH_NR) __flush_tlb_pending(batch); @@ -146,7 +147,7 @@ void __flush_tlb_pending(struct ppc64_tlb_batch *batch) if (cpumask_equal(mm_cpumask(batch->mm), tmp)) local = 1; if (i == 1) - flush_hash_page(batch->vaddr[0], batch->pte[0], + flush_hash_page(batch->vpn[0], batch->pte[0], batch->psize, batch->ssize, local); else flush_hash_range(i, local); diff --git a/arch/powerpc/mm/tlb_low_64e.S b/arch/powerpc/mm/tlb_low_64e.S index f09d48e..b4113bf8 100644 --- a/arch/powerpc/mm/tlb_low_64e.S +++ b/arch/powerpc/mm/tlb_low_64e.S @@ -20,6 +20,8 @@ #include <asm/pgtable.h> #include <asm/exception-64e.h> #include <asm/ppc-opcode.h> +#include <asm/kvm_asm.h> +#include <asm/kvm_booke_hv_asm.h> #ifdef CONFIG_PPC_64K_PAGES #define VPTE_PMD_SHIFT (PTE_INDEX_SIZE+1) @@ -37,12 +39,18 @@ * * **********************************************************************/ -.macro tlb_prolog_bolted addr - mtspr SPRN_SPRG_TLB_SCRATCH,r13 +.macro tlb_prolog_bolted intnum addr + mtspr SPRN_SPRG_GEN_SCRATCH,r13 mfspr r13,SPRN_SPRG_PACA std r10,PACA_EXTLB+EX_TLB_R10(r13) mfcr r10 std r11,PACA_EXTLB+EX_TLB_R11(r13) +#ifdef CONFIG_KVM_BOOKE_HV +BEGIN_FTR_SECTION + mfspr r11, SPRN_SRR1 +END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV) +#endif + DO_KVM \intnum, SPRN_SRR1 std r16,PACA_EXTLB+EX_TLB_R16(r13) mfspr r16,\addr /* get faulting address */ std r14,PACA_EXTLB+EX_TLB_R14(r13) @@ -61,12 +69,12 @@ ld r15,PACA_EXTLB+EX_TLB_R15(r13) TLB_MISS_RESTORE_STATS_BOLTED ld r16,PACA_EXTLB+EX_TLB_R16(r13) - mfspr r13,SPRN_SPRG_TLB_SCRATCH + mfspr r13,SPRN_SPRG_GEN_SCRATCH .endm /* Data TLB miss */ START_EXCEPTION(data_tlb_miss_bolted) - tlb_prolog_bolted SPRN_DEAR + tlb_prolog_bolted BOOKE_INTERRUPT_DTLB_MISS SPRN_DEAR /* We need _PAGE_PRESENT and _PAGE_ACCESSED set */ @@ -214,7 +222,7 @@ itlb_miss_fault_bolted: /* Instruction TLB miss */ START_EXCEPTION(instruction_tlb_miss_bolted) - tlb_prolog_bolted SPRN_SRR0 + tlb_prolog_bolted BOOKE_INTERRUPT_ITLB_MISS SPRN_SRR0 rldicl. r10,r16,64-PGTABLE_EADDR_SIZE,PGTABLE_EADDR_SIZE+4 srdi r15,r16,60 /* get region */ diff --git a/arch/powerpc/oprofile/op_model_power4.c b/arch/powerpc/oprofile/op_model_power4.c index 95ae77d..315f949 100644 --- a/arch/powerpc/oprofile/op_model_power4.c +++ b/arch/powerpc/oprofile/op_model_power4.c @@ -21,6 +21,13 @@ #include <asm/reg.h> #define dbg(args...) +#define OPROFILE_PM_PMCSEL_MSK 0xffULL +#define OPROFILE_PM_UNIT_SHIFT 60 +#define OPROFILE_PM_UNIT_MSK 0xfULL +#define OPROFILE_MAX_PMC_NUM 3 +#define OPROFILE_PMSEL_FIELD_WIDTH 8 +#define OPROFILE_UNIT_FIELD_WIDTH 4 +#define MMCRA_SIAR_VALID_MASK 0x10000000ULL static unsigned long reset_value[OP_MAX_COUNTER]; @@ -31,6 +38,61 @@ static int use_slot_nums; static u32 mmcr0_val; static u64 mmcr1_val; static u64 mmcra_val; +static u32 cntr_marked_events; + +static int power7_marked_instr_event(u64 mmcr1) +{ + u64 psel, unit; + int pmc, cntr_marked_events = 0; + + /* Given the MMCR1 value, look at the field for each counter to + * determine if it is a marked event. Code based on the function + * power7_marked_instr_event() in file arch/powerpc/perf/power7-pmu.c. + */ + for (pmc = 0; pmc < 4; pmc++) { + psel = mmcr1 & (OPROFILE_PM_PMCSEL_MSK + << (OPROFILE_MAX_PMC_NUM - pmc) + * OPROFILE_MAX_PMC_NUM); + psel = (psel >> ((OPROFILE_MAX_PMC_NUM - pmc) + * OPROFILE_PMSEL_FIELD_WIDTH)) & ~1ULL; + unit = mmcr1 & (OPROFILE_PM_UNIT_MSK + << (OPROFILE_PM_UNIT_SHIFT + - (pmc * OPROFILE_PMSEL_FIELD_WIDTH ))); + unit = unit >> (OPROFILE_PM_UNIT_SHIFT + - (pmc * OPROFILE_PMSEL_FIELD_WIDTH)); + + switch (psel >> 4) { + case 2: + cntr_marked_events |= (pmc == 1 || pmc == 3) << pmc; + break; + case 3: + if (psel == 0x3c) { + cntr_marked_events |= (pmc == 0) << pmc; + break; + } + + if (psel == 0x3e) { + cntr_marked_events |= (pmc != 1) << pmc; + break; + } + + cntr_marked_events |= 1 << pmc; + break; + case 4: + case 5: + cntr_marked_events |= (unit == 0xd) << pmc; + break; + case 6: + if (psel == 0x64) + cntr_marked_events |= (pmc >= 2) << pmc; + break; + case 8: + cntr_marked_events |= (unit == 0xd) << pmc; + break; + } + } + return cntr_marked_events; +} static int power4_reg_setup(struct op_counter_config *ctr, struct op_system_config *sys, @@ -47,6 +109,23 @@ static int power4_reg_setup(struct op_counter_config *ctr, mmcr1_val = sys->mmcr1; mmcra_val = sys->mmcra; + /* Power 7+ and newer architectures: + * Determine which counter events in the group (the group of events is + * specified by the bit settings in the MMCR1 register) are marked + * events for use in the interrupt handler. Do the calculation once + * before OProfile starts. Information is used in the interrupt + * handler. Starting with Power 7+ we only record the sample for + * marked events if the SIAR valid bit is set. For non marked events + * the sample is always recorded. + */ + if (pvr_version_is(PVR_POWER7p)) + cntr_marked_events = power7_marked_instr_event(mmcr1_val); + else + cntr_marked_events = 0; /* For older processors, set the bit map + * to zero so the sample will always be + * be recorded. + */ + for (i = 0; i < cur_cpu_spec->num_pmcs; ++i) reset_value[i] = 0x80000000UL - ctr[i].count; @@ -61,10 +140,10 @@ static int power4_reg_setup(struct op_counter_config *ctr, else mmcr0_val |= MMCR0_PROBLEM_DISABLE; - if (__is_processor(PV_POWER4) || __is_processor(PV_POWER4p) || - __is_processor(PV_970) || __is_processor(PV_970FX) || - __is_processor(PV_970MP) || __is_processor(PV_970GX) || - __is_processor(PV_POWER5) || __is_processor(PV_POWER5p)) + if (pvr_version_is(PVR_POWER4) || pvr_version_is(PVR_POWER4p) || + pvr_version_is(PVR_970) || pvr_version_is(PVR_970FX) || + pvr_version_is(PVR_970MP) || pvr_version_is(PVR_970GX) || + pvr_version_is(PVR_POWER5) || pvr_version_is(PVR_POWER5p)) use_slot_nums = 1; return 0; @@ -84,9 +163,9 @@ extern void ppc_enable_pmcs(void); */ static inline int mmcra_must_set_sample(void) { - if (__is_processor(PV_POWER4) || __is_processor(PV_POWER4p) || - __is_processor(PV_970) || __is_processor(PV_970FX) || - __is_processor(PV_970MP) || __is_processor(PV_970GX)) + if (pvr_version_is(PVR_POWER4) || pvr_version_is(PVR_POWER4p) || + pvr_version_is(PVR_970) || pvr_version_is(PVR_970FX) || + pvr_version_is(PVR_970MP) || pvr_version_is(PVR_970GX)) return 1; return 0; @@ -276,7 +355,7 @@ static bool pmc_overflow(unsigned long val) * PMCs because a user might set a period of less than 256 and we * don't want to mistakenly reset them. */ - if (__is_processor(PV_POWER7) && ((0x80000000 - val) <= 256)) + if (pvr_version_is(PVR_POWER7) && ((0x80000000 - val) <= 256)) return true; return false; @@ -291,6 +370,7 @@ static void power4_handle_interrupt(struct pt_regs *regs, int i; unsigned int mmcr0; unsigned long mmcra; + bool siar_valid = false; mmcra = mfspr(SPRN_MMCRA); @@ -300,11 +380,29 @@ static void power4_handle_interrupt(struct pt_regs *regs, /* set the PMM bit (see comment below) */ mtmsrd(mfmsr() | MSR_PMM); + /* Check that the SIAR valid bit in MMCRA is set to 1. */ + if ((mmcra & MMCRA_SIAR_VALID_MASK) == MMCRA_SIAR_VALID_MASK) + siar_valid = true; + for (i = 0; i < cur_cpu_spec->num_pmcs; ++i) { val = classic_ctr_read(i); if (pmc_overflow(val)) { if (oprofile_running && ctr[i].enabled) { - oprofile_add_ext_sample(pc, regs, i, is_kernel); + /* Power 7+ and newer architectures: + * If the event is a marked event, then only + * save the sample if the SIAR valid bit is + * set. If the event is not marked, then + * always save the sample. + * Note, the Sample enable bit in the MMCRA + * register must be set to 1 if the group + * contains a marked event. + */ + if ((siar_valid && + (cntr_marked_events & (1 << i))) + || !(cntr_marked_events & (1 << i))) + oprofile_add_ext_sample(pc, regs, i, + is_kernel); + classic_ctr_write(i, reset_value[i]); } else { classic_ctr_write(i, 0); diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 7cd2dbd..0db88f5 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -82,6 +82,11 @@ static inline int perf_intr_is_nmi(struct pt_regs *regs) return 0; } +static inline int siar_valid(struct pt_regs *regs) +{ + return 1; +} + #endif /* CONFIG_PPC32 */ /* @@ -106,14 +111,20 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs) * If we're not doing instruction sampling, give them the SDAR * (sampled data address). If we are doing instruction sampling, then * only give them the SDAR if it corresponds to the instruction - * pointed to by SIAR; this is indicated by the [POWER6_]MMCRA_SDSYNC - * bit in MMCRA. + * pointed to by SIAR; this is indicated by the [POWER6_]MMCRA_SDSYNC or + * the [POWER7P_]MMCRA_SDAR_VALID bit in MMCRA. */ static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp) { unsigned long mmcra = regs->dsisr; - unsigned long sdsync = (ppmu->flags & PPMU_ALT_SIPR) ? - POWER6_MMCRA_SDSYNC : MMCRA_SDSYNC; + unsigned long sdsync; + + if (ppmu->flags & PPMU_SIAR_VALID) + sdsync = POWER7P_MMCRA_SDAR_VALID; + else if (ppmu->flags & PPMU_ALT_SIPR) + sdsync = POWER6_MMCRA_SDSYNC; + else + sdsync = MMCRA_SDSYNC; if (!(mmcra & MMCRA_SAMPLE_ENABLE) || (mmcra & sdsync)) *addrp = mfspr(SPRN_SDAR); @@ -230,6 +241,24 @@ static inline int perf_intr_is_nmi(struct pt_regs *regs) return !regs->softe; } +/* + * On processors like P7+ that have the SIAR-Valid bit, marked instructions + * must be sampled only if the SIAR-valid bit is set. + * + * For unmarked instructions and for processors that don't have the SIAR-Valid + * bit, assume that SIAR is valid. + */ +static inline int siar_valid(struct pt_regs *regs) +{ + unsigned long mmcra = regs->dsisr; + int marked = mmcra & MMCRA_SAMPLE_ENABLE; + + if ((ppmu->flags & PPMU_SIAR_VALID) && marked) + return mmcra & POWER7P_MMCRA_SIAR_VALID; + + return 1; +} + #endif /* CONFIG_PPC64 */ static void perf_event_interrupt(struct pt_regs *regs); @@ -1291,6 +1320,7 @@ struct pmu power_pmu = { .event_idx = power_pmu_event_idx, }; + /* * A counter has overflowed; update its count and record * things if requested. Note that interrupts are hard-disabled @@ -1324,7 +1354,7 @@ static void record_and_restart(struct perf_event *event, unsigned long val, left += period; if (left <= 0) left = period; - record = 1; + record = siar_valid(regs); event->hw.last_period = event->hw.sample_period; } if (left < 0x80000000LL) @@ -1374,8 +1404,10 @@ unsigned long perf_instruction_pointer(struct pt_regs *regs) { unsigned long use_siar = regs->result; - if (use_siar) + if (use_siar && siar_valid(regs)) return mfspr(SPRN_SIAR) + perf_ip_adjust(regs); + else if (use_siar) + return 0; // no valid instruction pointer else return regs->nip; } @@ -1396,7 +1428,7 @@ static bool pmc_overflow(unsigned long val) * PMCs because a user might set a period of less than 256 and we * don't want to mistakenly reset them. */ - if (__is_processor(PV_POWER7) && ((0x80000000 - val) <= 256)) + if (pvr_version_is(PVR_POWER7) && ((0x80000000 - val) <= 256)) return true; return false; diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c index 1251e4d..441af08 100644 --- a/arch/powerpc/perf/power7-pmu.c +++ b/arch/powerpc/perf/power7-pmu.c @@ -373,6 +373,9 @@ static int __init init_power7_pmu(void) strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power7")) return -ENODEV; + if (pvr_version_is(PVR_POWER7p)) + power7_pmu.flags |= PPMU_SIAR_VALID; + return register_power_pmu(&power7_pmu); } diff --git a/arch/powerpc/platforms/44x/currituck.c b/arch/powerpc/platforms/44x/currituck.c index 9f6c33d6..6bd89a0 100644 --- a/arch/powerpc/platforms/44x/currituck.c +++ b/arch/powerpc/platforms/44x/currituck.c @@ -21,7 +21,6 @@ */ #include <linux/init.h> -#include <linux/memblock.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/rtc.h> @@ -159,13 +158,8 @@ static void __init ppc47x_setup_arch(void) /* No need to check the DMA config as we /know/ our windows are all of * RAM. Lets hope that doesn't change */ -#ifdef CONFIG_SWIOTLB - if ((memblock_end_of_DRAM() - 1) > 0xffffffff) { - ppc_swiotlb_enable = 1; - set_pci_dma_ops(&swiotlb_dma_ops); - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; - } -#endif + swiotlb_detect_4g(); + ppc47x_smp_init(); } diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig index c169998..b62508b 100644 --- a/arch/powerpc/platforms/512x/Kconfig +++ b/arch/powerpc/platforms/512x/Kconfig @@ -2,6 +2,7 @@ config PPC_MPC512x bool "512x-based boards" depends on 6xx select FSL_SOC + select FB_FSL_DIU select IPIC select PPC_CLOCK select PPC_PCI_CHOICE diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c index 1d8700f..9f771e0 100644 --- a/arch/powerpc/platforms/512x/clock.c +++ b/arch/powerpc/platforms/512x/clock.c @@ -54,14 +54,16 @@ static DEFINE_MUTEX(clocks_mutex); static struct clk *mpc5121_clk_get(struct device *dev, const char *id) { struct clk *p, *clk = ERR_PTR(-ENOENT); - int dev_match = 0; - int id_match = 0; + int dev_match; + int id_match; if (dev == NULL || id == NULL) return clk; mutex_lock(&clocks_mutex); list_for_each_entry(p, &clocks, node) { + dev_match = id_match = 0; + if (dev == p->dev) dev_match++; if (strcmp(id, p->name) == 0) diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c index cfe958e..1650e09 100644 --- a/arch/powerpc/platforms/512x/mpc512x_shared.c +++ b/arch/powerpc/platforms/512x/mpc512x_shared.c @@ -191,8 +191,6 @@ mpc512x_valid_monitor_port(enum fsl_diu_monitor_port port) static struct fsl_diu_shared_fb __attribute__ ((__aligned__(8))) diu_shared_fb; -#if defined(CONFIG_FB_FSL_DIU) || \ - defined(CONFIG_FB_FSL_DIU_MODULE) static inline void mpc512x_free_bootmem(struct page *page) { __ClearPageReserved(page); @@ -220,7 +218,6 @@ void mpc512x_release_bootmem(void) } diu_ops.release_bootmem = NULL; } -#endif /* * Check if DIU was pre-initialized. If so, perform steps @@ -323,15 +320,12 @@ void __init mpc512x_setup_diu(void) } } -#if defined(CONFIG_FB_FSL_DIU) || \ - defined(CONFIG_FB_FSL_DIU_MODULE) diu_ops.get_pixel_format = mpc512x_get_pixel_format; diu_ops.set_gamma_table = mpc512x_set_gamma_table; diu_ops.set_monitor_port = mpc512x_set_monitor_port; diu_ops.set_pixel_clock = mpc512x_set_pixel_clock; diu_ops.valid_monitor_port = mpc512x_valid_monitor_port; diu_ops.release_bootmem = mpc512x_release_bootmem; -#endif } void __init mpc512x_init_IRQ(void) diff --git a/arch/powerpc/platforms/52xx/mpc5200_simple.c b/arch/powerpc/platforms/52xx/mpc5200_simple.c index c0aa040..9cf3602 100644 --- a/arch/powerpc/platforms/52xx/mpc5200_simple.c +++ b/arch/powerpc/platforms/52xx/mpc5200_simple.c @@ -52,6 +52,7 @@ static void __init mpc5200_simple_setup_arch(void) static const char *board[] __initdata = { "anonymous,a4m072", "anon,charon", + "ifm,o2d", "intercontrol,digsy-mtc", "manroland,mucmc52", "manroland,uc101", diff --git a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c index d61fb1c..2351f9e 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c @@ -170,7 +170,8 @@ static void mpc52xx_lpbfifo_kick(struct mpc52xx_lpbfifo_request *req) out_be32(lpbfifo.regs + LPBFIFO_REG_CONTROL, bit_fields); /* Kick it off */ - out_8(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, 0x01); + if (!lpbfifo.req->defer_xfer_start) + out_8(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, 0x01); if (dma) bcom_enable(lpbfifo.bcom_cur_task); } @@ -421,6 +422,38 @@ int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req) } EXPORT_SYMBOL(mpc52xx_lpbfifo_submit); +int mpc52xx_lpbfifo_start_xfer(struct mpc52xx_lpbfifo_request *req) +{ + unsigned long flags; + + if (!lpbfifo.regs) + return -ENODEV; + + spin_lock_irqsave(&lpbfifo.lock, flags); + + /* + * If the req pointer is already set and a transfer was + * started on submit, then this transfer is in progress + */ + if (lpbfifo.req && !lpbfifo.req->defer_xfer_start) { + spin_unlock_irqrestore(&lpbfifo.lock, flags); + return -EBUSY; + } + + /* + * If the req was previously submitted but not + * started, start it now + */ + if (lpbfifo.req && lpbfifo.req == req && + lpbfifo.req->defer_xfer_start) { + out_8(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, 0x01); + } + + spin_unlock_irqrestore(&lpbfifo.lock, flags); + return 0; +} +EXPORT_SYMBOL(mpc52xx_lpbfifo_start_xfer); + void mpc52xx_lpbfifo_abort(struct mpc52xx_lpbfifo_request *req) { unsigned long flags; diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 159c01e..02d02a0 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -104,6 +104,13 @@ config P1022_DS help This option enables support for the Freescale P1022DS reference board. +config P1022_RDK + bool "Freescale / iVeia P1022 RDK" + select DEFAULT_UIMAGE + help + This option enables support for the Freescale / iVeia P1022RDK + reference board. + config P1023_RDS bool "Freescale P1023 RDS" select DEFAULT_UIMAGE @@ -254,6 +261,20 @@ config P5020_DS help This option enables support for the P5020 DS board +config P5040_DS + bool "Freescale P5040 DS" + select DEFAULT_UIMAGE + select E500 + select PPC_E500MC + select PHYS_64BIT + select SWIOTLB + select ARCH_REQUIRE_GPIOLIB + select GPIO_MPC8XXX + select HAS_RAPIDIO + select PPC_EPAPR_HV_PIC + help + This option enables support for the P5040 DS board + config PPC_QEMU_E500 bool "QEMU generic e500 platform" depends on EXPERIMENTAL diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index 3dfe811..76f679c 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -15,11 +15,13 @@ obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o obj-$(CONFIG_MPC85xx_RDB) += mpc85xx_rdb.o obj-$(CONFIG_P1010_RDB) += p1010rdb.o obj-$(CONFIG_P1022_DS) += p1022_ds.o +obj-$(CONFIG_P1022_RDK) += p1022_rdk.o obj-$(CONFIG_P1023_RDS) += p1023_rds.o obj-$(CONFIG_P2041_RDB) += p2041_rdb.o corenet_ds.o obj-$(CONFIG_P3041_DS) += p3041_ds.o corenet_ds.o obj-$(CONFIG_P4080_DS) += p4080_ds.o corenet_ds.o obj-$(CONFIG_P5020_DS) += p5020_ds.o corenet_ds.o +obj-$(CONFIG_P5040_DS) += p5040_ds.o corenet_ds.o obj-$(CONFIG_STX_GP3) += stx_gp3.o obj-$(CONFIG_TQM85xx) += tqm85xx.o obj-$(CONFIG_SBC8548) += sbc8548.o diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c index 67dac22..d0861a0 100644 --- a/arch/powerpc/platforms/85xx/common.c +++ b/arch/powerpc/platforms/85xx/common.c @@ -27,6 +27,16 @@ static struct of_device_id __initdata mpc85xx_common_ids[] = { { .compatible = "fsl,mpc8548-guts", }, /* Probably unnecessary? */ { .compatible = "gpio-leds", }, + /* For all PCI controllers */ + { .compatible = "fsl,mpc8540-pci", }, + { .compatible = "fsl,mpc8548-pcie", }, + { .compatible = "fsl,p1022-pcie", }, + { .compatible = "fsl,p1010-pcie", }, + { .compatible = "fsl,p1023-pcie", }, + { .compatible = "fsl,p4080-pcie", }, + { .compatible = "fsl,qoriq-pcie-v2.4", }, + { .compatible = "fsl,qoriq-pcie-v2.3", }, + { .compatible = "fsl,qoriq-pcie-v2.2", }, {}, }; diff --git a/arch/powerpc/platforms/85xx/corenet_ds.c b/arch/powerpc/platforms/85xx/corenet_ds.c index 925b028..ed69c92 100644 --- a/arch/powerpc/platforms/85xx/corenet_ds.c +++ b/arch/powerpc/platforms/85xx/corenet_ds.c @@ -16,7 +16,6 @@ #include <linux/kdev_t.h> #include <linux/delay.h> #include <linux/interrupt.h> -#include <linux/memblock.h> #include <asm/time.h> #include <asm/machdep.h> @@ -52,37 +51,16 @@ void __init corenet_ds_pic_init(void) */ void __init corenet_ds_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; - struct pci_controller *hose; -#endif - dma_addr_t max = 0xffffffff; - mpc85xx_smp_init(); -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,p4080-pcie") || - of_device_is_compatible(np, "fsl,qoriq-pcie-v2.2")) { - fsl_add_bridge(np, 0); - hose = pci_find_hose_for_OF_device(np); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); - } - } - -#ifdef CONFIG_PPC64 +#if defined(CONFIG_PCI) && defined(CONFIG_PPC64) pci_devs_phb_init(); #endif -#endif -#ifdef CONFIG_SWIOTLB - if ((memblock_end_of_DRAM() - 1) > max) { - ppc_swiotlb_enable = 1; - set_pci_dma_ops(&swiotlb_dma_ops); - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; - } -#endif + fsl_pci_assign_primary(); + + swiotlb_detect_4g(); + pr_info("%s board from Freescale Semiconductor\n", ppc_md.name); } @@ -99,6 +77,12 @@ static const struct of_device_id of_device_ids[] __devinitconst = { { .compatible = "fsl,qoriq-pcie-v2.2", }, + { + .compatible = "fsl,qoriq-pcie-v2.3", + }, + { + .compatible = "fsl,qoriq-pcie-v2.4", + }, /* The following two are for the Freescale hypervisor */ { .name = "hypervisor", diff --git a/arch/powerpc/platforms/85xx/ge_imp3a.c b/arch/powerpc/platforms/85xx/ge_imp3a.c index b6a728b..e6285ae 100644 --- a/arch/powerpc/platforms/85xx/ge_imp3a.c +++ b/arch/powerpc/platforms/85xx/ge_imp3a.c @@ -22,7 +22,6 @@ #include <linux/seq_file.h> #include <linux/interrupt.h> #include <linux/of_platform.h> -#include <linux/memblock.h> #include <asm/time.h> #include <asm/machdep.h> @@ -84,53 +83,39 @@ void __init ge_imp3a_pic_init(void) of_node_put(cascade_node); } -#ifdef CONFIG_PCI -static int primary_phb_addr; -#endif /* CONFIG_PCI */ - -/* - * Setup the architecture - */ -static void __init ge_imp3a_setup_arch(void) +static void ge_imp3a_pci_assign_primary(void) { - struct device_node *regs; #ifdef CONFIG_PCI struct device_node *np; - struct pci_controller *hose; -#endif - dma_addr_t max = 0xffffffff; + struct resource rsrc; - if (ppc_md.progress) - ppc_md.progress("ge_imp3a_setup_arch()", 0); - -#ifdef CONFIG_PCI for_each_node_by_type(np, "pci") { if (of_device_is_compatible(np, "fsl,mpc8540-pci") || of_device_is_compatible(np, "fsl,mpc8548-pcie") || of_device_is_compatible(np, "fsl,p2020-pcie")) { - struct resource rsrc; of_address_to_resource(np, 0, &rsrc); - if ((rsrc.start & 0xfffff) == primary_phb_addr) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - - hose = pci_find_hose_for_OF_device(np); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); + if ((rsrc.start & 0xfffff) == 0x9000) + fsl_pci_primary = np; } } #endif +} + +/* + * Setup the architecture + */ +static void __init ge_imp3a_setup_arch(void) +{ + struct device_node *regs; + + if (ppc_md.progress) + ppc_md.progress("ge_imp3a_setup_arch()", 0); mpc85xx_smp_init(); -#ifdef CONFIG_SWIOTLB - if ((memblock_end_of_DRAM() - 1) > max) { - ppc_swiotlb_enable = 1; - set_pci_dma_ops(&swiotlb_dma_ops); - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; - } -#endif + ge_imp3a_pci_assign_primary(); + + swiotlb_detect_4g(); /* Remap basic board registers */ regs = of_find_compatible_node(NULL, NULL, "ge,imp3a-fpga-regs"); @@ -215,17 +200,10 @@ static int __init ge_imp3a_probe(void) { unsigned long root = of_get_flat_dt_root(); - if (of_flat_dt_is_compatible(root, "ge,IMP3A")) { -#ifdef CONFIG_PCI - primary_phb_addr = 0x9000; -#endif - return 1; - } - - return 0; + return of_flat_dt_is_compatible(root, "ge,IMP3A"); } -machine_device_initcall(ge_imp3a, mpc85xx_common_publish_devices); +machine_arch_initcall(ge_imp3a, mpc85xx_common_publish_devices); machine_arch_initcall(ge_imp3a, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/85xx/mpc8536_ds.c b/arch/powerpc/platforms/85xx/mpc8536_ds.c index 767c7cf..15ce4b5 100644 --- a/arch/powerpc/platforms/85xx/mpc8536_ds.c +++ b/arch/powerpc/platforms/85xx/mpc8536_ds.c @@ -17,7 +17,6 @@ #include <linux/seq_file.h> #include <linux/interrupt.h> #include <linux/of_platform.h> -#include <linux/memblock.h> #include <asm/time.h> #include <asm/machdep.h> @@ -46,46 +45,17 @@ void __init mpc8536_ds_pic_init(void) */ static void __init mpc8536_ds_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; - struct pci_controller *hose; -#endif - dma_addr_t max = 0xffffffff; - if (ppc_md.progress) ppc_md.progress("mpc8536_ds_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,mpc8540-pci") || - of_device_is_compatible(np, "fsl,mpc8548-pcie")) { - struct resource rsrc; - of_address_to_resource(np, 0, &rsrc); - if ((rsrc.start & 0xfffff) == 0x8000) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - - hose = pci_find_hose_for_OF_device(np); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); - } - } - -#endif + fsl_pci_assign_primary(); -#ifdef CONFIG_SWIOTLB - if ((memblock_end_of_DRAM() - 1) > max) { - ppc_swiotlb_enable = 1; - set_pci_dma_ops(&swiotlb_dma_ops); - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; - } -#endif + swiotlb_detect_4g(); printk("MPC8536 DS board from Freescale Semiconductor\n"); } -machine_device_initcall(mpc8536_ds, mpc85xx_common_publish_devices); +machine_arch_initcall(mpc8536_ds, mpc85xx_common_publish_devices); machine_arch_initcall(mpc8536_ds, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index 29ee8fc..7d12a19 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -137,10 +137,6 @@ static void __init init_ioports(void) static void __init mpc85xx_ads_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif - if (ppc_md.progress) ppc_md.progress("mpc85xx_ads_setup_arch()", 0); @@ -150,11 +146,10 @@ static void __init mpc85xx_ads_setup_arch(void) #endif #ifdef CONFIG_PCI - for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") - fsl_add_bridge(np, 1); - ppc_md.pci_exclude_device = mpc85xx_exclude_device; #endif + + fsl_pci_assign_primary(); } static void mpc85xx_ads_show_cpuinfo(struct seq_file *m) @@ -173,7 +168,7 @@ static void mpc85xx_ads_show_cpuinfo(struct seq_file *m) seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); } -machine_device_initcall(mpc85xx_ads, mpc85xx_common_publish_devices); +machine_arch_initcall(mpc85xx_ads, mpc85xx_common_publish_devices); /* * Called very early, device-tree isn't unflattened diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c index 11156fb..c474505 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c @@ -276,6 +276,33 @@ machine_device_initcall(mpc85xx_cds, mpc85xx_cds_8259_attach); #endif /* CONFIG_PPC_I8259 */ +static void mpc85xx_cds_pci_assign_primary(void) +{ +#ifdef CONFIG_PCI + struct device_node *np; + + if (fsl_pci_primary) + return; + + /* + * MPC85xx_CDS has ISA bridge but unfortunately there is no + * isa node in device tree. We now looking for i8259 node as + * a workaround for such a broken device tree. This routine + * is for complying to all device trees. + */ + np = of_find_node_by_name(NULL, "i8259"); + while ((fsl_pci_primary = of_get_parent(np))) { + of_node_put(np); + np = fsl_pci_primary; + + if ((of_device_is_compatible(np, "fsl,mpc8540-pci") || + of_device_is_compatible(np, "fsl,mpc8548-pcie")) && + of_device_is_available(np)) + return; + } +#endif +} + /* * Setup the architecture */ @@ -309,21 +336,12 @@ static void __init mpc85xx_cds_setup_arch(void) } #ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,mpc8540-pci") || - of_device_is_compatible(np, "fsl,mpc8548-pcie")) { - struct resource rsrc; - of_address_to_resource(np, 0, &rsrc); - if ((rsrc.start & 0xfffff) == 0x8000) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - } - } - ppc_md.pci_irq_fixup = mpc85xx_cds_pci_irq_fixup; ppc_md.pci_exclude_device = mpc85xx_exclude_device; #endif + + mpc85xx_cds_pci_assign_primary(); + fsl_pci_assign_primary(); } static void mpc85xx_cds_show_cpuinfo(struct seq_file *m) @@ -355,7 +373,7 @@ static int __init mpc85xx_cds_probe(void) return of_flat_dt_is_compatible(root, "MPC85xxCDS"); } -machine_device_initcall(mpc85xx_cds, mpc85xx_common_publish_devices); +machine_arch_initcall(mpc85xx_cds, mpc85xx_common_publish_devices); define_machine(mpc85xx_cds) { .name = "MPC85xx CDS", diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c index 6d3265f..9ebb91e 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c @@ -20,7 +20,6 @@ #include <linux/seq_file.h> #include <linux/interrupt.h> #include <linux/of_platform.h> -#include <linux/memblock.h> #include <asm/time.h> #include <asm/machdep.h> @@ -129,13 +128,11 @@ static int mpc85xx_exclude_device(struct pci_controller *hose, } #endif /* CONFIG_PCI */ -static void __init mpc85xx_ds_pci_init(void) +static void __init mpc85xx_ds_uli_init(void) { #ifdef CONFIG_PCI struct device_node *node; - fsl_pci_init(); - /* See if we have a ULI under the primary */ node = of_find_node_by_name(NULL, "uli1575"); @@ -159,7 +156,9 @@ static void __init mpc85xx_ds_setup_arch(void) if (ppc_md.progress) ppc_md.progress("mpc85xx_ds_setup_arch()", 0); - mpc85xx_ds_pci_init(); + swiotlb_detect_4g(); + fsl_pci_assign_primary(); + mpc85xx_ds_uli_init(); mpc85xx_smp_init(); printk("MPC85xx DS board from Freescale Semiconductor\n"); @@ -175,9 +174,9 @@ static int __init mpc8544_ds_probe(void) return !!of_flat_dt_is_compatible(root, "MPC8544DS"); } -machine_device_initcall(mpc8544_ds, mpc85xx_common_publish_devices); -machine_device_initcall(mpc8572_ds, mpc85xx_common_publish_devices); -machine_device_initcall(p2020_ds, mpc85xx_common_publish_devices); +machine_arch_initcall(mpc8544_ds, mpc85xx_common_publish_devices); +machine_arch_initcall(mpc8572_ds, mpc85xx_common_publish_devices); +machine_arch_initcall(p2020_ds, mpc85xx_common_publish_devices); machine_arch_initcall(mpc8544_ds, swiotlb_setup_bus_notifier); machine_arch_initcall(mpc8572_ds, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index 8e4b094..8498f73 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -327,44 +327,16 @@ static void __init mpc85xx_mds_qeic_init(void) { } static void __init mpc85xx_mds_setup_arch(void) { -#ifdef CONFIG_PCI - struct pci_controller *hose; - struct device_node *np; -#endif - dma_addr_t max = 0xffffffff; - if (ppc_md.progress) ppc_md.progress("mpc85xx_mds_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,mpc8540-pci") || - of_device_is_compatible(np, "fsl,mpc8548-pcie")) { - struct resource rsrc; - of_address_to_resource(np, 0, &rsrc); - if ((rsrc.start & 0xfffff) == 0x8000) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - - hose = pci_find_hose_for_OF_device(np); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); - } - } -#endif - mpc85xx_smp_init(); mpc85xx_mds_qe_init(); -#ifdef CONFIG_SWIOTLB - if ((memblock_end_of_DRAM() - 1) > max) { - ppc_swiotlb_enable = 1; - set_pci_dma_ops(&swiotlb_dma_ops); - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; - } -#endif + fsl_pci_assign_primary(); + + swiotlb_detect_4g(); } @@ -409,9 +381,9 @@ static int __init mpc85xx_publish_devices(void) return mpc85xx_common_publish_devices(); } -machine_device_initcall(mpc8568_mds, mpc85xx_publish_devices); -machine_device_initcall(mpc8569_mds, mpc85xx_publish_devices); -machine_device_initcall(p1021_mds, mpc85xx_common_publish_devices); +machine_arch_initcall(mpc8568_mds, mpc85xx_publish_devices); +machine_arch_initcall(mpc8569_mds, mpc85xx_publish_devices); +machine_arch_initcall(p1021_mds, mpc85xx_common_publish_devices); machine_arch_initcall(mpc8568_mds, swiotlb_setup_bus_notifier); machine_arch_initcall(mpc8569_mds, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c index 1910fdc..ede8771 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c @@ -86,23 +86,17 @@ void __init mpc85xx_rdb_pic_init(void) */ static void __init mpc85xx_rdb_setup_arch(void) { -#if defined(CONFIG_PCI) || defined(CONFIG_QUICC_ENGINE) +#ifdef CONFIG_QUICC_ENGINE struct device_node *np; #endif if (ppc_md.progress) ppc_md.progress("mpc85xx_rdb_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,mpc8548-pcie")) - fsl_add_bridge(np, 0); - } - -#endif - mpc85xx_smp_init(); + fsl_pci_assign_primary(); + #ifdef CONFIG_QUICC_ENGINE np = of_find_compatible_node(NULL, NULL, "fsl,qe"); if (!np) { @@ -161,15 +155,15 @@ qe_fail: printk(KERN_INFO "MPC85xx RDB board from Freescale Semiconductor\n"); } -machine_device_initcall(p2020_rdb, mpc85xx_common_publish_devices); -machine_device_initcall(p2020_rdb_pc, mpc85xx_common_publish_devices); -machine_device_initcall(p1020_mbg_pc, mpc85xx_common_publish_devices); -machine_device_initcall(p1020_rdb, mpc85xx_common_publish_devices); -machine_device_initcall(p1020_rdb_pc, mpc85xx_common_publish_devices); -machine_device_initcall(p1020_utm_pc, mpc85xx_common_publish_devices); -machine_device_initcall(p1021_rdb_pc, mpc85xx_common_publish_devices); -machine_device_initcall(p1025_rdb, mpc85xx_common_publish_devices); -machine_device_initcall(p1024_rdb, mpc85xx_common_publish_devices); +machine_arch_initcall(p2020_rdb, mpc85xx_common_publish_devices); +machine_arch_initcall(p2020_rdb_pc, mpc85xx_common_publish_devices); +machine_arch_initcall(p1020_mbg_pc, mpc85xx_common_publish_devices); +machine_arch_initcall(p1020_rdb, mpc85xx_common_publish_devices); +machine_arch_initcall(p1020_rdb_pc, mpc85xx_common_publish_devices); +machine_arch_initcall(p1020_utm_pc, mpc85xx_common_publish_devices); +machine_arch_initcall(p1021_rdb_pc, mpc85xx_common_publish_devices); +machine_arch_initcall(p1025_rdb, mpc85xx_common_publish_devices); +machine_arch_initcall(p1024_rdb, mpc85xx_common_publish_devices); /* * Called very early, device-tree isn't unflattened diff --git a/arch/powerpc/platforms/85xx/p1010rdb.c b/arch/powerpc/platforms/85xx/p1010rdb.c index dbaf443..0252961 100644 --- a/arch/powerpc/platforms/85xx/p1010rdb.c +++ b/arch/powerpc/platforms/85xx/p1010rdb.c @@ -46,25 +46,15 @@ void __init p1010_rdb_pic_init(void) */ static void __init p1010_rdb_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif - if (ppc_md.progress) ppc_md.progress("p1010_rdb_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,p1010-pcie")) - fsl_add_bridge(np, 0); - } - -#endif + fsl_pci_assign_primary(); printk(KERN_INFO "P1010 RDB board from Freescale Semiconductor\n"); } -machine_device_initcall(p1010_rdb, mpc85xx_common_publish_devices); +machine_arch_initcall(p1010_rdb, mpc85xx_common_publish_devices); machine_arch_initcall(p1010_rdb, swiotlb_setup_bus_notifier); /* diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c index 3c732ac..848a3e9 100644 --- a/arch/powerpc/platforms/85xx/p1022_ds.c +++ b/arch/powerpc/platforms/85xx/p1022_ds.c @@ -18,7 +18,6 @@ #include <linux/pci.h> #include <linux/of_platform.h> -#include <linux/memblock.h> #include <asm/div64.h> #include <asm/mpic.h> #include <asm/swiotlb.h> @@ -507,32 +506,9 @@ early_param("video", early_video_setup); */ static void __init p1022_ds_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif - dma_addr_t max = 0xffffffff; - if (ppc_md.progress) ppc_md.progress("p1022_ds_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_compatible_node(np, "pci", "fsl,p1022-pcie") { - struct resource rsrc; - struct pci_controller *hose; - - of_address_to_resource(np, 0, &rsrc); - - if ((rsrc.start & 0xfffff) == 0x8000) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - - hose = pci_find_hose_for_OF_device(np); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); - } -#endif - #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) diu_ops.get_pixel_format = p1022ds_get_pixel_format; diu_ops.set_gamma_table = p1022ds_set_gamma_table; @@ -601,18 +577,14 @@ static void __init p1022_ds_setup_arch(void) mpc85xx_smp_init(); -#ifdef CONFIG_SWIOTLB - if ((memblock_end_of_DRAM() - 1) > max) { - ppc_swiotlb_enable = 1; - set_pci_dma_ops(&swiotlb_dma_ops); - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; - } -#endif + fsl_pci_assign_primary(); + + swiotlb_detect_4g(); pr_info("Freescale P1022 DS reference board\n"); } -machine_device_initcall(p1022_ds, mpc85xx_common_publish_devices); +machine_arch_initcall(p1022_ds, mpc85xx_common_publish_devices); machine_arch_initcall(p1022_ds, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/85xx/p1022_rdk.c b/arch/powerpc/platforms/85xx/p1022_rdk.c new file mode 100644 index 0000000..55ffa1c --- /dev/null +++ b/arch/powerpc/platforms/85xx/p1022_rdk.c @@ -0,0 +1,167 @@ +/* + * P1022 RDK board specific routines + * + * Copyright 2012 Freescale Semiconductor, Inc. + * + * Author: Timur Tabi <timur@freescale.com> + * + * Based on p1022_ds.c + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/pci.h> +#include <linux/of_platform.h> +#include <asm/div64.h> +#include <asm/mpic.h> +#include <asm/swiotlb.h> + +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> +#include <asm/udbg.h> +#include <asm/fsl_guts.h> +#include "smp.h" + +#include "mpc85xx.h" + +#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) + +/* DIU Pixel Clock bits of the CLKDVDR Global Utilities register */ +#define CLKDVDR_PXCKEN 0x80000000 +#define CLKDVDR_PXCKINV 0x10000000 +#define CLKDVDR_PXCKDLY 0x06000000 +#define CLKDVDR_PXCLK_MASK 0x00FF0000 + +/** + * p1022rdk_set_monitor_port: switch the output to a different monitor port + */ +static void p1022rdk_set_monitor_port(enum fsl_diu_monitor_port port) +{ + if (port != FSL_DIU_PORT_DVI) { + pr_err("p1022rdk: unsupported monitor port %i\n", port); + return; + } +} + +/** + * p1022rdk_set_pixel_clock: program the DIU's clock + * + * @pixclock: the wavelength, in picoseconds, of the clock + */ +void p1022rdk_set_pixel_clock(unsigned int pixclock) +{ + struct device_node *guts_np = NULL; + struct ccsr_guts __iomem *guts; + unsigned long freq; + u64 temp; + u32 pxclk; + + /* Map the global utilities registers. */ + guts_np = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts"); + if (!guts_np) { + pr_err("p1022rdk: missing global utilties device node\n"); + return; + } + + guts = of_iomap(guts_np, 0); + of_node_put(guts_np); + if (!guts) { + pr_err("p1022rdk: could not map global utilties device\n"); + return; + } + + /* Convert pixclock from a wavelength to a frequency */ + temp = 1000000000000ULL; + do_div(temp, pixclock); + freq = temp; + + /* + * 'pxclk' is the ratio of the platform clock to the pixel clock. + * This number is programmed into the CLKDVDR register, and the valid + * range of values is 2-255. + */ + pxclk = DIV_ROUND_CLOSEST(fsl_get_sys_freq(), freq); + pxclk = clamp_t(u32, pxclk, 2, 255); + + /* Disable the pixel clock, and set it to non-inverted and no delay */ + clrbits32(&guts->clkdvdr, + CLKDVDR_PXCKEN | CLKDVDR_PXCKDLY | CLKDVDR_PXCLK_MASK); + + /* Enable the clock and set the pxclk */ + setbits32(&guts->clkdvdr, CLKDVDR_PXCKEN | (pxclk << 16)); + + iounmap(guts); +} + +/** + * p1022rdk_valid_monitor_port: set the monitor port for sysfs + */ +enum fsl_diu_monitor_port +p1022rdk_valid_monitor_port(enum fsl_diu_monitor_port port) +{ + return FSL_DIU_PORT_DVI; +} + +#endif + +void __init p1022_rdk_pic_init(void) +{ + struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN | + MPIC_SINGLE_DEST_CPU, + 0, 256, " OpenPIC "); + BUG_ON(mpic == NULL); + mpic_init(mpic); +} + +/* + * Setup the architecture + */ +static void __init p1022_rdk_setup_arch(void) +{ + if (ppc_md.progress) + ppc_md.progress("p1022_rdk_setup_arch()", 0); + +#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) + diu_ops.set_monitor_port = p1022rdk_set_monitor_port; + diu_ops.set_pixel_clock = p1022rdk_set_pixel_clock; + diu_ops.valid_monitor_port = p1022rdk_valid_monitor_port; +#endif + + mpc85xx_smp_init(); + + fsl_pci_assign_primary(); + + swiotlb_detect_4g(); + + pr_info("Freescale / iVeia P1022 RDK reference board\n"); +} + +machine_arch_initcall(p1022_rdk, mpc85xx_common_publish_devices); + +machine_arch_initcall(p1022_rdk, swiotlb_setup_bus_notifier); + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init p1022_rdk_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "fsl,p1022rdk"); +} + +define_machine(p1022_rdk) { + .name = "P1022 RDK", + .probe = p1022_rdk_probe, + .setup_arch = p1022_rdk_setup_arch, + .init_IRQ = p1022_rdk_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; diff --git a/arch/powerpc/platforms/85xx/p1023_rds.c b/arch/powerpc/platforms/85xx/p1023_rds.c index 2990e8b..9cc60a7 100644 --- a/arch/powerpc/platforms/85xx/p1023_rds.c +++ b/arch/powerpc/platforms/85xx/p1023_rds.c @@ -80,15 +80,12 @@ static void __init mpc85xx_rds_setup_arch(void) } } -#ifdef CONFIG_PCI - for_each_compatible_node(np, "pci", "fsl,p1023-pcie") - fsl_add_bridge(np, 0); -#endif - mpc85xx_smp_init(); + + fsl_pci_assign_primary(); } -machine_device_initcall(p1023_rds, mpc85xx_common_publish_devices); +machine_arch_initcall(p1023_rds, mpc85xx_common_publish_devices); static void __init mpc85xx_rds_pic_init(void) { diff --git a/arch/powerpc/platforms/85xx/p2041_rdb.c b/arch/powerpc/platforms/85xx/p2041_rdb.c index 6541fa2..000c089 100644 --- a/arch/powerpc/platforms/85xx/p2041_rdb.c +++ b/arch/powerpc/platforms/85xx/p2041_rdb.c @@ -80,7 +80,7 @@ define_machine(p2041_rdb) { .power_save = e500_idle, }; -machine_device_initcall(p2041_rdb, corenet_ds_publish_devices); +machine_arch_initcall(p2041_rdb, corenet_ds_publish_devices); #ifdef CONFIG_SWIOTLB machine_arch_initcall(p2041_rdb, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/85xx/p3041_ds.c b/arch/powerpc/platforms/85xx/p3041_ds.c index f238efa..b3edc20 100644 --- a/arch/powerpc/platforms/85xx/p3041_ds.c +++ b/arch/powerpc/platforms/85xx/p3041_ds.c @@ -82,7 +82,7 @@ define_machine(p3041_ds) { .power_save = e500_idle, }; -machine_device_initcall(p3041_ds, corenet_ds_publish_devices); +machine_arch_initcall(p3041_ds, corenet_ds_publish_devices); #ifdef CONFIG_SWIOTLB machine_arch_initcall(p3041_ds, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/85xx/p4080_ds.c b/arch/powerpc/platforms/85xx/p4080_ds.c index c92417d..54df106 100644 --- a/arch/powerpc/platforms/85xx/p4080_ds.c +++ b/arch/powerpc/platforms/85xx/p4080_ds.c @@ -81,7 +81,7 @@ define_machine(p4080_ds) { .power_save = e500_idle, }; -machine_device_initcall(p4080_ds, corenet_ds_publish_devices); +machine_arch_initcall(p4080_ds, corenet_ds_publish_devices); #ifdef CONFIG_SWIOTLB machine_arch_initcall(p4080_ds, swiotlb_setup_bus_notifier); #endif diff --git a/arch/powerpc/platforms/85xx/p5020_ds.c b/arch/powerpc/platforms/85xx/p5020_ds.c index 17bef15..753a42c 100644 --- a/arch/powerpc/platforms/85xx/p5020_ds.c +++ b/arch/powerpc/platforms/85xx/p5020_ds.c @@ -91,7 +91,7 @@ define_machine(p5020_ds) { #endif }; -machine_device_initcall(p5020_ds, corenet_ds_publish_devices); +machine_arch_initcall(p5020_ds, corenet_ds_publish_devices); #ifdef CONFIG_SWIOTLB machine_arch_initcall(p5020_ds, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/85xx/p5040_ds.c b/arch/powerpc/platforms/85xx/p5040_ds.c new file mode 100644 index 0000000..1138185 --- /dev/null +++ b/arch/powerpc/platforms/85xx/p5040_ds.c @@ -0,0 +1,89 @@ +/* + * P5040 DS Setup + * + * Copyright 2009-2010 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/pci.h> + +#include <asm/machdep.h> +#include <asm/udbg.h> +#include <asm/mpic.h> + +#include <linux/of_fdt.h> + +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> +#include <asm/ehv_pic.h> + +#include "corenet_ds.h" + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init p5040_ds_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); +#ifdef CONFIG_SMP + extern struct smp_ops_t smp_85xx_ops; +#endif + + if (of_flat_dt_is_compatible(root, "fsl,P5040DS")) + return 1; + + /* Check if we're running under the Freescale hypervisor */ + if (of_flat_dt_is_compatible(root, "fsl,P5040DS-hv")) { + ppc_md.init_IRQ = ehv_pic_init; + ppc_md.get_irq = ehv_pic_get_irq; + ppc_md.restart = fsl_hv_restart; + ppc_md.power_off = fsl_hv_halt; + ppc_md.halt = fsl_hv_halt; +#ifdef CONFIG_SMP + /* + * Disable the timebase sync operations because we can't write + * to the timebase registers under the hypervisor. + */ + smp_85xx_ops.give_timebase = NULL; + smp_85xx_ops.take_timebase = NULL; +#endif + return 1; + } + + return 0; +} + +define_machine(p5040_ds) { + .name = "P5040 DS", + .probe = p5040_ds_probe, + .setup_arch = corenet_ds_setup_arch, + .init_IRQ = corenet_ds_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif +/* coreint doesn't play nice with lazy EE, use legacy mpic for now */ +#ifdef CONFIG_PPC64 + .get_irq = mpic_get_irq, +#else + .get_irq = mpic_get_coreint_irq, +#endif + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +#ifdef CONFIG_PPC64 + .power_save = book3e_idle, +#else + .power_save = e500_idle, +#endif +}; + +machine_arch_initcall(p5040_ds, corenet_ds_publish_devices); + +#ifdef CONFIG_SWIOTLB +machine_arch_initcall(p5040_ds, swiotlb_setup_bus_notifier); +#endif diff --git a/arch/powerpc/platforms/85xx/qemu_e500.c b/arch/powerpc/platforms/85xx/qemu_e500.c index 95a2e53..f6ea561 100644 --- a/arch/powerpc/platforms/85xx/qemu_e500.c +++ b/arch/powerpc/platforms/85xx/qemu_e500.c @@ -41,7 +41,8 @@ static void __init qemu_e500_setup_arch(void) { ppc_md.progress("qemu_e500_setup_arch()", 0); - fsl_pci_init(); + fsl_pci_assign_primary(); + swiotlb_detect_4g(); mpc85xx_smp_init(); } @@ -55,7 +56,7 @@ static int __init qemu_e500_probe(void) return !!of_flat_dt_is_compatible(root, "fsl,qemu-e500"); } -machine_device_initcall(qemu_e500, mpc85xx_common_publish_devices); +machine_arch_initcall(qemu_e500, mpc85xx_common_publish_devices); define_machine(qemu_e500) { .name = "QEMU e500", diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c index cd3a66b..f621218 100644 --- a/arch/powerpc/platforms/85xx/sbc8548.c +++ b/arch/powerpc/platforms/85xx/sbc8548.c @@ -88,26 +88,11 @@ static int __init sbc8548_hw_rev(void) */ static void __init sbc8548_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif - if (ppc_md.progress) ppc_md.progress("sbc8548_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,mpc8540-pci") || - of_device_is_compatible(np, "fsl,mpc8548-pcie")) { - struct resource rsrc; - of_address_to_resource(np, 0, &rsrc); - if ((rsrc.start & 0xfffff) == 0x8000) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - } - } -#endif + fsl_pci_assign_primary(); + sbc_rev = sbc8548_hw_rev(); } @@ -128,7 +113,7 @@ static void sbc8548_show_cpuinfo(struct seq_file *m) seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); } -machine_device_initcall(sbc8548, mpc85xx_common_publish_devices); +machine_arch_initcall(sbc8548, mpc85xx_common_publish_devices); /* * Called very early, device-tree isn't unflattened diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index ff42490..6fcfa12 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -2,7 +2,7 @@ * Author: Andy Fleming <afleming@freescale.com> * Kumar Gala <galak@kernel.crashing.org> * - * Copyright 2006-2008, 2011 Freescale Semiconductor Inc. + * Copyright 2006-2008, 2011-2012 Freescale Semiconductor Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -17,6 +17,7 @@ #include <linux/of.h> #include <linux/kexec.h> #include <linux/highmem.h> +#include <linux/cpu.h> #include <asm/machdep.h> #include <asm/pgtable.h> @@ -24,33 +25,118 @@ #include <asm/mpic.h> #include <asm/cacheflush.h> #include <asm/dbell.h> +#include <asm/fsl_guts.h> #include <sysdev/fsl_soc.h> #include <sysdev/mpic.h> #include "smp.h" -extern void __early_start(void); - -#define BOOT_ENTRY_ADDR_UPPER 0 -#define BOOT_ENTRY_ADDR_LOWER 1 -#define BOOT_ENTRY_R3_UPPER 2 -#define BOOT_ENTRY_R3_LOWER 3 -#define BOOT_ENTRY_RESV 4 -#define BOOT_ENTRY_PIR 5 -#define BOOT_ENTRY_R6_UPPER 6 -#define BOOT_ENTRY_R6_LOWER 7 -#define NUM_BOOT_ENTRY 8 -#define SIZE_BOOT_ENTRY (NUM_BOOT_ENTRY * sizeof(u32)) - -static int __init -smp_85xx_kick_cpu(int nr) +struct epapr_spin_table { + u32 addr_h; + u32 addr_l; + u32 r3_h; + u32 r3_l; + u32 reserved; + u32 pir; +}; + +static struct ccsr_guts __iomem *guts; +static u64 timebase; +static int tb_req; +static int tb_valid; + +static void mpc85xx_timebase_freeze(int freeze) +{ + uint32_t mask; + + mask = CCSR_GUTS_DEVDISR_TB0 | CCSR_GUTS_DEVDISR_TB1; + if (freeze) + setbits32(&guts->devdisr, mask); + else + clrbits32(&guts->devdisr, mask); + + in_be32(&guts->devdisr); +} + +static void mpc85xx_give_timebase(void) +{ + unsigned long flags; + + local_irq_save(flags); + + while (!tb_req) + barrier(); + tb_req = 0; + + mpc85xx_timebase_freeze(1); + timebase = get_tb(); + mb(); + tb_valid = 1; + + while (tb_valid) + barrier(); + + mpc85xx_timebase_freeze(0); + + local_irq_restore(flags); +} + +static void mpc85xx_take_timebase(void) +{ + unsigned long flags; + + local_irq_save(flags); + + tb_req = 1; + while (!tb_valid) + barrier(); + + set_tb(timebase >> 32, timebase & 0xffffffff); + isync(); + tb_valid = 0; + + local_irq_restore(flags); +} + +#ifdef CONFIG_HOTPLUG_CPU +static void __cpuinit smp_85xx_mach_cpu_die(void) +{ + unsigned int cpu = smp_processor_id(); + u32 tmp; + + local_irq_disable(); + idle_task_exit(); + generic_set_cpu_dead(cpu); + mb(); + + mtspr(SPRN_TCR, 0); + + __flush_disable_L1(); + tmp = (mfspr(SPRN_HID0) & ~(HID0_DOZE|HID0_SLEEP)) | HID0_NAP; + mtspr(SPRN_HID0, tmp); + isync(); + + /* Enter NAP mode. */ + tmp = mfmsr(); + tmp |= MSR_WE; + mb(); + mtmsr(tmp); + isync(); + + while (1) + ; +} +#endif + +static int __cpuinit smp_85xx_kick_cpu(int nr) { unsigned long flags; const u64 *cpu_rel_addr; - __iomem u32 *bptr_vaddr; + __iomem struct epapr_spin_table *spin_table; struct device_node *np; - int n = 0, hw_cpu = get_hard_smp_processor_id(nr); + int hw_cpu = get_hard_smp_processor_id(nr); int ioremappable; + int ret = 0; WARN_ON(nr < 0 || nr >= NR_CPUS); WARN_ON(hw_cpu < 0 || hw_cpu >= NR_CPUS); @@ -75,46 +161,81 @@ smp_85xx_kick_cpu(int nr) /* Map the spin table */ if (ioremappable) - bptr_vaddr = ioremap(*cpu_rel_addr, SIZE_BOOT_ENTRY); + spin_table = ioremap(*cpu_rel_addr, + sizeof(struct epapr_spin_table)); else - bptr_vaddr = phys_to_virt(*cpu_rel_addr); + spin_table = phys_to_virt(*cpu_rel_addr); local_irq_save(flags); - - out_be32(bptr_vaddr + BOOT_ENTRY_PIR, hw_cpu); #ifdef CONFIG_PPC32 - out_be32(bptr_vaddr + BOOT_ENTRY_ADDR_LOWER, __pa(__early_start)); +#ifdef CONFIG_HOTPLUG_CPU + /* Corresponding to generic_set_cpu_dead() */ + generic_set_cpu_up(nr); + + if (system_state == SYSTEM_RUNNING) { + out_be32(&spin_table->addr_l, 0); + + /* + * We don't set the BPTR register here since it already points + * to the boot page properly. + */ + mpic_reset_core(hw_cpu); + + /* wait until core is ready... */ + if (!spin_event_timeout(in_be32(&spin_table->addr_l) == 1, + 10000, 100)) { + pr_err("%s: timeout waiting for core %d to reset\n", + __func__, hw_cpu); + ret = -ENOENT; + goto out; + } + + /* clear the acknowledge status */ + __secondary_hold_acknowledge = -1; + } +#endif + out_be32(&spin_table->pir, hw_cpu); + out_be32(&spin_table->addr_l, __pa(__early_start)); if (!ioremappable) - flush_dcache_range((ulong)bptr_vaddr, - (ulong)(bptr_vaddr + SIZE_BOOT_ENTRY)); + flush_dcache_range((ulong)spin_table, + (ulong)spin_table + sizeof(struct epapr_spin_table)); /* Wait a bit for the CPU to ack. */ - while ((__secondary_hold_acknowledge != hw_cpu) && (++n < 1000)) - mdelay(1); + if (!spin_event_timeout(__secondary_hold_acknowledge == hw_cpu, + 10000, 100)) { + pr_err("%s: timeout waiting for core %d to ack\n", + __func__, hw_cpu); + ret = -ENOENT; + goto out; + } +out: #else smp_generic_kick_cpu(nr); - out_be64((u64 *)(bptr_vaddr + BOOT_ENTRY_ADDR_UPPER), - __pa((u64)*((unsigned long long *) generic_secondary_smp_init))); + out_be32(&spin_table->pir, hw_cpu); + out_be64((u64 *)(&spin_table->addr_h), + __pa((u64)*((unsigned long long *)generic_secondary_smp_init))); if (!ioremappable) - flush_dcache_range((ulong)bptr_vaddr, - (ulong)(bptr_vaddr + SIZE_BOOT_ENTRY)); + flush_dcache_range((ulong)spin_table, + (ulong)spin_table + sizeof(struct epapr_spin_table)); #endif local_irq_restore(flags); if (ioremappable) - iounmap(bptr_vaddr); - - pr_debug("waited %d msecs for CPU #%d.\n", n, nr); + iounmap(spin_table); - return 0; + return ret; } struct smp_ops_t smp_85xx_ops = { .kick_cpu = smp_85xx_kick_cpu, +#ifdef CONFIG_HOTPLUG_CPU + .cpu_disable = generic_cpu_disable, + .cpu_die = generic_cpu_die, +#endif #ifdef CONFIG_KEXEC .give_timebase = smp_generic_give_timebase, .take_timebase = smp_generic_take_timebase, @@ -218,8 +339,7 @@ static void mpc85xx_smp_machine_kexec(struct kimage *image) } #endif /* CONFIG_KEXEC */ -static void __init -smp_85xx_setup_cpu(int cpu_nr) +static void __cpuinit smp_85xx_setup_cpu(int cpu_nr) { if (smp_85xx_ops.probe == smp_mpic_probe) mpic_setup_this_cpu(); @@ -228,6 +348,16 @@ smp_85xx_setup_cpu(int cpu_nr) doorbell_setup_this_cpu(); } +static const struct of_device_id mpc85xx_smp_guts_ids[] = { + { .compatible = "fsl,mpc8572-guts", }, + { .compatible = "fsl,p1020-guts", }, + { .compatible = "fsl,p1021-guts", }, + { .compatible = "fsl,p1022-guts", }, + { .compatible = "fsl,p1023-guts", }, + { .compatible = "fsl,p2020-guts", }, + {}, +}; + void __init mpc85xx_smp_init(void) { struct device_node *np; @@ -249,6 +379,22 @@ void __init mpc85xx_smp_init(void) smp_85xx_ops.cause_ipi = doorbell_cause_ipi; } + np = of_find_matching_node(NULL, mpc85xx_smp_guts_ids); + if (np) { + guts = of_iomap(np, 0); + of_node_put(np); + if (!guts) { + pr_err("%s: Could not map guts node address\n", + __func__); + return; + } + smp_85xx_ops.give_timebase = mpc85xx_give_timebase; + smp_85xx_ops.take_timebase = mpc85xx_take_timebase; +#ifdef CONFIG_HOTPLUG_CPU + ppc_md.cpu_die = smp_85xx_mach_cpu_die; +#endif + } + smp_ops = &smp_85xx_ops; #ifdef CONFIG_KEXEC diff --git a/arch/powerpc/platforms/85xx/socrates.c b/arch/powerpc/platforms/85xx/socrates.c index b9c6daa..ae368e0 100644 --- a/arch/powerpc/platforms/85xx/socrates.c +++ b/arch/powerpc/platforms/85xx/socrates.c @@ -66,20 +66,13 @@ static void __init socrates_pic_init(void) */ static void __init socrates_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif - if (ppc_md.progress) ppc_md.progress("socrates_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") - fsl_add_bridge(np, 1); -#endif + fsl_pci_assign_primary(); } -machine_device_initcall(socrates, mpc85xx_common_publish_devices); +machine_arch_initcall(socrates, mpc85xx_common_publish_devices); /* * Called very early, device-tree isn't unflattened diff --git a/arch/powerpc/platforms/85xx/stx_gp3.c b/arch/powerpc/platforms/85xx/stx_gp3.c index e050800..6f4939b 100644 --- a/arch/powerpc/platforms/85xx/stx_gp3.c +++ b/arch/powerpc/platforms/85xx/stx_gp3.c @@ -60,21 +60,14 @@ static void __init stx_gp3_pic_init(void) */ static void __init stx_gp3_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif - if (ppc_md.progress) ppc_md.progress("stx_gp3_setup_arch()", 0); + fsl_pci_assign_primary(); + #ifdef CONFIG_CPM2 cpm2_reset(); #endif - -#ifdef CONFIG_PCI - for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") - fsl_add_bridge(np, 1); -#endif } static void stx_gp3_show_cpuinfo(struct seq_file *m) @@ -93,7 +86,7 @@ static void stx_gp3_show_cpuinfo(struct seq_file *m) seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); } -machine_device_initcall(stx_gp3, mpc85xx_common_publish_devices); +machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices); /* * Called very early, device-tree isn't unflattened diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c index b62fa87..b4e58cd 100644 --- a/arch/powerpc/platforms/85xx/tqm85xx.c +++ b/arch/powerpc/platforms/85xx/tqm85xx.c @@ -59,10 +59,6 @@ static void __init tqm85xx_pic_init(void) */ static void __init tqm85xx_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif - if (ppc_md.progress) ppc_md.progress("tqm85xx_setup_arch()", 0); @@ -70,20 +66,7 @@ static void __init tqm85xx_setup_arch(void) cpm2_reset(); #endif -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,mpc8540-pci") || - of_device_is_compatible(np, "fsl,mpc8548-pcie")) { - struct resource rsrc; - if (!of_address_to_resource(np, 0, &rsrc)) { - if ((rsrc.start & 0xfffff) == 0x8000) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - } - } - } -#endif + fsl_pci_assign_primary(); } static void tqm85xx_show_cpuinfo(struct seq_file *m) @@ -123,7 +106,7 @@ static void __devinit tqm85xx_ti1520_fixup(struct pci_dev *pdev) DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, tqm85xx_ti1520_fixup); -machine_device_initcall(tqm85xx, mpc85xx_common_publish_devices); +machine_arch_initcall(tqm85xx, mpc85xx_common_publish_devices); static const char * const board[] __initconst = { "tqc,tqm8540", diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c index 41c6875..dcbf7e4 100644 --- a/arch/powerpc/platforms/85xx/xes_mpc85xx.c +++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c @@ -111,18 +111,11 @@ static void xes_mpc85xx_fixups(void) } } -#ifdef CONFIG_PCI -static int primary_phb_addr; -#endif - /* * Setup the architecture */ static void __init xes_mpc85xx_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif struct device_node *root; const char *model = "Unknown"; @@ -137,26 +130,14 @@ static void __init xes_mpc85xx_setup_arch(void) xes_mpc85xx_fixups(); -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,mpc8540-pci") || - of_device_is_compatible(np, "fsl,mpc8548-pcie")) { - struct resource rsrc; - of_address_to_resource(np, 0, &rsrc); - if ((rsrc.start & 0xfffff) == primary_phb_addr) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - } - } -#endif - mpc85xx_smp_init(); + + fsl_pci_assign_primary(); } -machine_device_initcall(xes_mpc8572, mpc85xx_common_publish_devices); -machine_device_initcall(xes_mpc8548, mpc85xx_common_publish_devices); -machine_device_initcall(xes_mpc8540, mpc85xx_common_publish_devices); +machine_arch_initcall(xes_mpc8572, mpc85xx_common_publish_devices); +machine_arch_initcall(xes_mpc8548, mpc85xx_common_publish_devices); +machine_arch_initcall(xes_mpc8540, mpc85xx_common_publish_devices); /* * Called very early, device-tree isn't unflattened @@ -165,42 +146,21 @@ static int __init xes_mpc8572_probe(void) { unsigned long root = of_get_flat_dt_root(); - if (of_flat_dt_is_compatible(root, "xes,MPC8572")) { -#ifdef CONFIG_PCI - primary_phb_addr = 0x8000; -#endif - return 1; - } else { - return 0; - } + return of_flat_dt_is_compatible(root, "xes,MPC8572"); } static int __init xes_mpc8548_probe(void) { unsigned long root = of_get_flat_dt_root(); - if (of_flat_dt_is_compatible(root, "xes,MPC8548")) { -#ifdef CONFIG_PCI - primary_phb_addr = 0xb000; -#endif - return 1; - } else { - return 0; - } + return of_flat_dt_is_compatible(root, "xes,MPC8548"); } static int __init xes_mpc8540_probe(void) { unsigned long root = of_get_flat_dt_root(); - if (of_flat_dt_is_compatible(root, "xes,MPC8540")) { -#ifdef CONFIG_PCI - primary_phb_addr = 0xb000; -#endif - return 1; - } else { - return 0; - } + return of_flat_dt_is_compatible(root, "xes,MPC8540"); } define_machine(xes_mpc8572) { diff --git a/arch/powerpc/platforms/86xx/gef_ppc9a.c b/arch/powerpc/platforms/86xx/gef_ppc9a.c index 563aafa8..bf53387 100644 --- a/arch/powerpc/platforms/86xx/gef_ppc9a.c +++ b/arch/powerpc/platforms/86xx/gef_ppc9a.c @@ -73,13 +73,6 @@ static void __init gef_ppc9a_init_irq(void) static void __init gef_ppc9a_setup_arch(void) { struct device_node *regs; -#ifdef CONFIG_PCI - struct device_node *np; - - for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") { - fsl_add_bridge(np, 1); - } -#endif printk(KERN_INFO "GE Intelligent Platforms PPC9A 6U VME SBC\n"); @@ -87,6 +80,8 @@ static void __init gef_ppc9a_setup_arch(void) mpc86xx_smp_init(); #endif + fsl_pci_assign_primary(); + /* Remap basic board registers */ regs = of_find_compatible_node(NULL, NULL, "gef,ppc9a-fpga-regs"); if (regs) { @@ -221,6 +216,7 @@ static long __init mpc86xx_time_init(void) static __initdata struct of_device_id of_bus_ids[] = { { .compatible = "simple-bus", }, { .compatible = "gianfar", }, + { .compatible = "fsl,mpc8641-pcie", }, {}, }; @@ -231,7 +227,7 @@ static int __init declare_of_platform_devices(void) return 0; } -machine_device_initcall(gef_ppc9a, declare_of_platform_devices); +machine_arch_initcall(gef_ppc9a, declare_of_platform_devices); define_machine(gef_ppc9a) { .name = "GE PPC9A", diff --git a/arch/powerpc/platforms/86xx/gef_sbc310.c b/arch/powerpc/platforms/86xx/gef_sbc310.c index cc6a91a..0b78513 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc310.c +++ b/arch/powerpc/platforms/86xx/gef_sbc310.c @@ -73,20 +73,14 @@ static void __init gef_sbc310_init_irq(void) static void __init gef_sbc310_setup_arch(void) { struct device_node *regs; -#ifdef CONFIG_PCI - struct device_node *np; - - for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") { - fsl_add_bridge(np, 1); - } -#endif - printk(KERN_INFO "GE Intelligent Platforms SBC310 6U VPX SBC\n"); #ifdef CONFIG_SMP mpc86xx_smp_init(); #endif + fsl_pci_assign_primary(); + /* Remap basic board registers */ regs = of_find_compatible_node(NULL, NULL, "gef,fpga-regs"); if (regs) { @@ -209,6 +203,7 @@ static long __init mpc86xx_time_init(void) static __initdata struct of_device_id of_bus_ids[] = { { .compatible = "simple-bus", }, { .compatible = "gianfar", }, + { .compatible = "fsl,mpc8641-pcie", }, {}, }; @@ -219,7 +214,7 @@ static int __init declare_of_platform_devices(void) return 0; } -machine_device_initcall(gef_sbc310, declare_of_platform_devices); +machine_arch_initcall(gef_sbc310, declare_of_platform_devices); define_machine(gef_sbc310) { .name = "GE SBC310", diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c index aead6b3..b9eb174 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc610.c +++ b/arch/powerpc/platforms/86xx/gef_sbc610.c @@ -73,13 +73,6 @@ static void __init gef_sbc610_init_irq(void) static void __init gef_sbc610_setup_arch(void) { struct device_node *regs; -#ifdef CONFIG_PCI - struct device_node *np; - - for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") { - fsl_add_bridge(np, 1); - } -#endif printk(KERN_INFO "GE Intelligent Platforms SBC610 6U VPX SBC\n"); @@ -87,6 +80,8 @@ static void __init gef_sbc610_setup_arch(void) mpc86xx_smp_init(); #endif + fsl_pci_assign_primary(); + /* Remap basic board registers */ regs = of_find_compatible_node(NULL, NULL, "gef,fpga-regs"); if (regs) { @@ -198,6 +193,7 @@ static long __init mpc86xx_time_init(void) static __initdata struct of_device_id of_bus_ids[] = { { .compatible = "simple-bus", }, { .compatible = "gianfar", }, + { .compatible = "fsl,mpc8641-pcie", }, {}, }; @@ -208,7 +204,7 @@ static int __init declare_of_platform_devices(void) return 0; } -machine_device_initcall(gef_sbc610, declare_of_platform_devices); +machine_arch_initcall(gef_sbc610, declare_of_platform_devices); define_machine(gef_sbc610) { .name = "GE SBC610", diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c index 62cd3c5..a817398 100644 --- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c +++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c @@ -91,6 +91,9 @@ static struct of_device_id __initdata mpc8610_ids[] = { { .compatible = "simple-bus", }, /* So that the DMA channel nodes can be probed individually: */ { .compatible = "fsl,eloplus-dma", }, + /* PCI controllers */ + { .compatible = "fsl,mpc8610-pci", }, + { .compatible = "fsl,mpc8641-pcie", }, {} }; @@ -107,7 +110,7 @@ static int __init mpc8610_declare_of_platform_devices(void) return 0; } -machine_device_initcall(mpc86xx_hpcd, mpc8610_declare_of_platform_devices); +machine_arch_initcall(mpc86xx_hpcd, mpc8610_declare_of_platform_devices); #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) @@ -278,25 +281,13 @@ mpc8610hpcd_valid_monitor_port(enum fsl_diu_monitor_port port) static void __init mpc86xx_hpcd_setup_arch(void) { struct resource r; - struct device_node *np; unsigned char *pixis; if (ppc_md.progress) ppc_md.progress("mpc86xx_hpcd_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_node_by_type(np, "pci") { - if (of_device_is_compatible(np, "fsl,mpc8610-pci") - || of_device_is_compatible(np, "fsl,mpc8641-pcie")) { - struct resource rsrc; - of_address_to_resource(np, 0, &rsrc); - if ((rsrc.start & 0xfffff) == 0xa000) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - } - } -#endif + fsl_pci_assign_primary(); + #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) diu_ops.get_pixel_format = mpc8610hpcd_get_pixel_format; diu_ops.set_gamma_table = mpc8610hpcd_set_gamma_table; diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index 817245b..e8bf3fa 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -19,7 +19,6 @@ #include <linux/delay.h> #include <linux/seq_file.h> #include <linux/of_platform.h> -#include <linux/memblock.h> #include <asm/time.h> #include <asm/machdep.h> @@ -51,15 +50,8 @@ extern int uli_exclude_device(struct pci_controller *hose, static int mpc86xx_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn) { - struct device_node* node; - struct resource rsrc; - - node = hose->dn; - of_address_to_resource(node, 0, &rsrc); - - if ((rsrc.start & 0xfffff) == 0x8000) { + if (hose->dn == fsl_pci_primary) return uli_exclude_device(hose, bus, devfn); - } return PCIBIOS_SUCCESSFUL; } @@ -69,30 +61,11 @@ static int mpc86xx_exclude_device(struct pci_controller *hose, static void __init mpc86xx_hpcn_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; - struct pci_controller *hose; -#endif - dma_addr_t max = 0xffffffff; - if (ppc_md.progress) ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0); #ifdef CONFIG_PCI - for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") { - struct resource rsrc; - of_address_to_resource(np, 0, &rsrc); - if ((rsrc.start & 0xfffff) == 0x8000) - fsl_add_bridge(np, 1); - else - fsl_add_bridge(np, 0); - hose = pci_find_hose_for_OF_device(np); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); - } - ppc_md.pci_exclude_device = mpc86xx_exclude_device; - #endif printk("MPC86xx HPCN board from Freescale Semiconductor\n"); @@ -101,13 +74,9 @@ mpc86xx_hpcn_setup_arch(void) mpc86xx_smp_init(); #endif -#ifdef CONFIG_SWIOTLB - if ((memblock_end_of_DRAM() - 1) > max) { - ppc_swiotlb_enable = 1; - set_pci_dma_ops(&swiotlb_dma_ops); - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; - } -#endif + fsl_pci_assign_primary(); + + swiotlb_detect_4g(); } @@ -162,6 +131,7 @@ static __initdata struct of_device_id of_bus_ids[] = { { .compatible = "simple-bus", }, { .compatible = "fsl,srio", }, { .compatible = "gianfar", }, + { .compatible = "fsl,mpc8641-pcie", }, {}, }; @@ -171,7 +141,7 @@ static int __init declare_of_platform_devices(void) return 0; } -machine_device_initcall(mpc86xx_hpcn, declare_of_platform_devices); +machine_arch_initcall(mpc86xx_hpcn, declare_of_platform_devices); machine_arch_initcall(mpc86xx_hpcn, swiotlb_setup_bus_notifier); define_machine(mpc86xx_hpcn) { diff --git a/arch/powerpc/platforms/86xx/sbc8641d.c b/arch/powerpc/platforms/86xx/sbc8641d.c index e7007d0..b47a8fd 100644 --- a/arch/powerpc/platforms/86xx/sbc8641d.c +++ b/arch/powerpc/platforms/86xx/sbc8641d.c @@ -38,23 +38,16 @@ static void __init sbc8641_setup_arch(void) { -#ifdef CONFIG_PCI - struct device_node *np; -#endif - if (ppc_md.progress) ppc_md.progress("sbc8641_setup_arch()", 0); -#ifdef CONFIG_PCI - for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") - fsl_add_bridge(np, 0); -#endif - printk("SBC8641 board from Wind River\n"); #ifdef CONFIG_SMP mpc86xx_smp_init(); #endif + + fsl_pci_assign_primary(); } @@ -102,6 +95,7 @@ mpc86xx_time_init(void) static __initdata struct of_device_id of_bus_ids[] = { { .compatible = "simple-bus", }, { .compatible = "gianfar", }, + { .compatible = "fsl,mpc8641-pcie", }, {}, }; @@ -111,7 +105,7 @@ static int __init declare_of_platform_devices(void) return 0; } -machine_device_initcall(sbc8641, declare_of_platform_devices); +machine_arch_initcall(sbc8641, declare_of_platform_devices); define_machine(sbc8641) { .name = "SBC8641D", diff --git a/arch/powerpc/platforms/cell/beat.c b/arch/powerpc/platforms/cell/beat.c index 852592b..affcf56 100644 --- a/arch/powerpc/platforms/cell/beat.c +++ b/arch/powerpc/platforms/cell/beat.c @@ -136,9 +136,9 @@ ssize_t beat_nvram_get_size(void) return BEAT_NVRAM_SIZE; } -int beat_set_xdabr(unsigned long dabr) +int beat_set_xdabr(unsigned long dabr, unsigned long dabrx) { - if (beat_set_dabr(dabr, DABRX_KERNEL | DABRX_USER)) + if (beat_set_dabr(dabr, dabrx)) return -1; return 0; } diff --git a/arch/powerpc/platforms/cell/beat.h b/arch/powerpc/platforms/cell/beat.h index 32c8efc..bfcb8e3 100644 --- a/arch/powerpc/platforms/cell/beat.h +++ b/arch/powerpc/platforms/cell/beat.h @@ -32,7 +32,7 @@ void beat_get_rtc_time(struct rtc_time *); ssize_t beat_nvram_get_size(void); ssize_t beat_nvram_read(char *, size_t, loff_t *); ssize_t beat_nvram_write(char *, size_t, loff_t *); -int beat_set_xdabr(unsigned long); +int beat_set_xdabr(unsigned long, unsigned long); void beat_power_save(void); void beat_kexec_cpu_down(int, int); diff --git a/arch/powerpc/platforms/cell/beat_htab.c b/arch/powerpc/platforms/cell/beat_htab.c index 943c9d3..0f6f839 100644 --- a/arch/powerpc/platforms/cell/beat_htab.c +++ b/arch/powerpc/platforms/cell/beat_htab.c @@ -88,7 +88,7 @@ static inline unsigned int beat_read_mask(unsigned hpte_group) } static long beat_lpar_hpte_insert(unsigned long hpte_group, - unsigned long va, unsigned long pa, + unsigned long vpn, unsigned long pa, unsigned long rflags, unsigned long vflags, int psize, int ssize) { @@ -103,7 +103,7 @@ static long beat_lpar_hpte_insert(unsigned long hpte_group, "rflags=%lx, vflags=%lx, psize=%d)\n", hpte_group, va, pa, rflags, vflags, psize); - hpte_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M) | + hpte_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M) | vflags | HPTE_V_VALID; hpte_r = hpte_encode_r(pa, psize) | rflags; @@ -184,14 +184,14 @@ static void beat_lpar_hptab_clear(void) */ static long beat_lpar_hpte_updatepp(unsigned long slot, unsigned long newpp, - unsigned long va, + unsigned long vpn, int psize, int ssize, int local) { unsigned long lpar_rc; u64 dummy0, dummy1; unsigned long want_v; - want_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M); + want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); DBG_LOW(" update: " "avpnv=%016lx, slot=%016lx, psize: %d, newpp %016lx ... ", @@ -220,15 +220,15 @@ static long beat_lpar_hpte_updatepp(unsigned long slot, return 0; } -static long beat_lpar_hpte_find(unsigned long va, int psize) +static long beat_lpar_hpte_find(unsigned long vpn, int psize) { unsigned long hash; unsigned long i, j; long slot; unsigned long want_v, hpte_v; - hash = hpt_hash(va, mmu_psize_defs[psize].shift, MMU_SEGSIZE_256M); - want_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M); + hash = hpt_hash(vpn, mmu_psize_defs[psize].shift, MMU_SEGSIZE_256M); + want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); for (j = 0; j < 2; j++) { slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; @@ -255,14 +255,15 @@ static void beat_lpar_hpte_updateboltedpp(unsigned long newpp, unsigned long ea, int psize, int ssize) { - unsigned long lpar_rc, slot, vsid, va; + unsigned long vpn; + unsigned long lpar_rc, slot, vsid; u64 dummy0, dummy1; vsid = get_kernel_vsid(ea, MMU_SEGSIZE_256M); - va = (vsid << 28) | (ea & 0x0fffffff); + vpn = hpt_vpn(ea, vsid, MMU_SEGSIZE_256M); raw_spin_lock(&beat_htab_lock); - slot = beat_lpar_hpte_find(va, psize); + slot = beat_lpar_hpte_find(vpn, psize); BUG_ON(slot == -1); lpar_rc = beat_write_htab_entry(0, slot, 0, newpp, 0, 7, @@ -272,7 +273,7 @@ static void beat_lpar_hpte_updateboltedpp(unsigned long newpp, BUG_ON(lpar_rc != 0); } -static void beat_lpar_hpte_invalidate(unsigned long slot, unsigned long va, +static void beat_lpar_hpte_invalidate(unsigned long slot, unsigned long vpn, int psize, int ssize, int local) { unsigned long want_v; @@ -282,7 +283,7 @@ static void beat_lpar_hpte_invalidate(unsigned long slot, unsigned long va, DBG_LOW(" inval : slot=%lx, va=%016lx, psize: %d, local: %d\n", slot, va, psize, local); - want_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M); + want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); raw_spin_lock_irqsave(&beat_htab_lock, flags); dummy1 = beat_lpar_hpte_getword0(slot); @@ -311,7 +312,7 @@ void __init hpte_init_beat(void) } static long beat_lpar_hpte_insert_v3(unsigned long hpte_group, - unsigned long va, unsigned long pa, + unsigned long vpn, unsigned long pa, unsigned long rflags, unsigned long vflags, int psize, int ssize) { @@ -322,11 +323,11 @@ static long beat_lpar_hpte_insert_v3(unsigned long hpte_group, return -1; if (!(vflags & HPTE_V_BOLTED)) - DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, " + DBG_LOW("hpte_insert(group=%lx, vpn=%016lx, pa=%016lx, " "rflags=%lx, vflags=%lx, psize=%d)\n", - hpte_group, va, pa, rflags, vflags, psize); + hpte_group, vpn, pa, rflags, vflags, psize); - hpte_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M) | + hpte_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M) | vflags | HPTE_V_VALID; hpte_r = hpte_encode_r(pa, psize) | rflags; @@ -364,14 +365,14 @@ static long beat_lpar_hpte_insert_v3(unsigned long hpte_group, */ static long beat_lpar_hpte_updatepp_v3(unsigned long slot, unsigned long newpp, - unsigned long va, + unsigned long vpn, int psize, int ssize, int local) { unsigned long lpar_rc; unsigned long want_v; unsigned long pss; - want_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M); + want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); pss = (psize == MMU_PAGE_4K) ? -1UL : mmu_psize_defs[psize].penc; DBG_LOW(" update: " @@ -392,16 +393,16 @@ static long beat_lpar_hpte_updatepp_v3(unsigned long slot, return 0; } -static void beat_lpar_hpte_invalidate_v3(unsigned long slot, unsigned long va, +static void beat_lpar_hpte_invalidate_v3(unsigned long slot, unsigned long vpn, int psize, int ssize, int local) { unsigned long want_v; unsigned long lpar_rc; unsigned long pss; - DBG_LOW(" inval : slot=%lx, va=%016lx, psize: %d, local: %d\n", - slot, va, psize, local); - want_v = hpte_encode_v(va, psize, MMU_SEGSIZE_256M); + DBG_LOW(" inval : slot=%lx, vpn=%016lx, psize: %d, local: %d\n", + slot, vpn, psize, local); + want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M); pss = (psize == MMU_PAGE_4K) ? -1UL : mmu_psize_defs[psize].penc; lpar_rc = beat_invalidate_htab_entry3(0, slot, want_v, pss); diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c index 14943ef..7d2d036 100644 --- a/arch/powerpc/platforms/pasemi/iommu.c +++ b/arch/powerpc/platforms/pasemi/iommu.c @@ -19,12 +19,12 @@ #undef DEBUG +#include <linux/memblock.h> #include <linux/types.h> #include <linux/spinlock.h> #include <linux/pci.h> #include <asm/iommu.h> #include <asm/machdep.h> -#include <asm/abs_addr.h> #include <asm/firmware.h> #define IOBMAP_PAGE_SHIFT 12 @@ -99,7 +99,7 @@ static int iobmap_build(struct iommu_table *tbl, long index, ip = ((u32 *)tbl->it_base) + index; while (npages--) { - rpn = virt_to_abs(uaddr) >> IOBMAP_PAGE_SHIFT; + rpn = __pa(uaddr) >> IOBMAP_PAGE_SHIFT; *(ip++) = IOBMAP_L2E_V | rpn; /* invalidate tlb, can be optimized more */ @@ -258,7 +258,7 @@ void __init alloc_iobmap_l2(void) return; #endif /* For 2G space, 8x64 pages (2^21 bytes) is max total l2 size */ - iob_l2_base = (u32 *)abs_to_virt(memblock_alloc_base(1UL<<21, 1UL<<21, 0x80000000)); + iob_l2_base = (u32 *)__va(memblock_alloc_base(1UL<<21, 1UL<<21, 0x80000000)); printk(KERN_INFO "IOBMAP L2 allocated at: %p\n", iob_l2_base); } diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 0e7eccc..471aa3c 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -30,19 +30,10 @@ #include <asm/opal.h> #include <asm/iommu.h> #include <asm/tce.h> -#include <asm/abs_addr.h> #include "powernv.h" #include "pci.h" -struct resource_wrap { - struct list_head link; - resource_size_t size; - resource_size_t align; - struct pci_dev *dev; /* Set if it's a device */ - struct pci_bus *bus; /* Set if it's a bridge */ -}; - static int __pe_printk(const char *level, const struct pnv_ioda_pe *pe, struct va_format *vaf) { @@ -78,273 +69,6 @@ define_pe_printk_level(pe_err, KERN_ERR); define_pe_printk_level(pe_warn, KERN_WARNING); define_pe_printk_level(pe_info, KERN_INFO); - -/* Calculate resource usage & alignment requirement of a single - * device. This will also assign all resources within the device - * for a given type starting at 0 for the biggest one and then - * assigning in decreasing order of size. - */ -static void __devinit pnv_ioda_calc_dev(struct pci_dev *dev, unsigned int flags, - resource_size_t *size, - resource_size_t *align) -{ - resource_size_t start; - struct resource *r; - int i; - - pr_devel(" -> CDR %s\n", pci_name(dev)); - - *size = *align = 0; - - /* Clear the resources out and mark them all unset */ - for (i = 0; i <= PCI_ROM_RESOURCE; i++) { - r = &dev->resource[i]; - if (!(r->flags & flags)) - continue; - if (r->start) { - r->end -= r->start; - r->start = 0; - } - r->flags |= IORESOURCE_UNSET; - } - - /* We currently keep all memory resources together, we - * will handle prefetch & 64-bit separately in the future - * but for now we stick everybody in M32 - */ - start = 0; - for (;;) { - resource_size_t max_size = 0; - int max_no = -1; - - /* Find next biggest resource */ - for (i = 0; i <= PCI_ROM_RESOURCE; i++) { - r = &dev->resource[i]; - if (!(r->flags & IORESOURCE_UNSET) || - !(r->flags & flags)) - continue; - if (resource_size(r) > max_size) { - max_size = resource_size(r); - max_no = i; - } - } - if (max_no < 0) - break; - r = &dev->resource[max_no]; - if (max_size > *align) - *align = max_size; - *size += max_size; - r->start = start; - start += max_size; - r->end = r->start + max_size - 1; - r->flags &= ~IORESOURCE_UNSET; - pr_devel(" -> R%d %016llx..%016llx\n", - max_no, r->start, r->end); - } - pr_devel(" <- CDR %s size=%llx align=%llx\n", - pci_name(dev), *size, *align); -} - -/* Allocate a resource "wrap" for a given device or bridge and - * insert it at the right position in the sorted list - */ -static void __devinit pnv_ioda_add_wrap(struct list_head *list, - struct pci_bus *bus, - struct pci_dev *dev, - resource_size_t size, - resource_size_t align) -{ - struct resource_wrap *w1, *w = kzalloc(sizeof(*w), GFP_KERNEL); - - w->size = size; - w->align = align; - w->dev = dev; - w->bus = bus; - - list_for_each_entry(w1, list, link) { - if (w1->align < align) { - list_add_tail(&w->link, &w1->link); - return; - } - } - list_add_tail(&w->link, list); -} - -/* Offset device resources of a given type */ -static void __devinit pnv_ioda_offset_dev(struct pci_dev *dev, - unsigned int flags, - resource_size_t offset) -{ - struct resource *r; - int i; - - pr_devel(" -> ODR %s [%x] +%016llx\n", pci_name(dev), flags, offset); - - for (i = 0; i <= PCI_ROM_RESOURCE; i++) { - r = &dev->resource[i]; - if (r->flags & flags) { - dev->resource[i].start += offset; - dev->resource[i].end += offset; - } - } - - pr_devel(" <- ODR %s [%x] +%016llx\n", pci_name(dev), flags, offset); -} - -/* Offset bus resources (& all children) of a given type */ -static void __devinit pnv_ioda_offset_bus(struct pci_bus *bus, - unsigned int flags, - resource_size_t offset) -{ - struct resource *r; - struct pci_dev *dev; - struct pci_bus *cbus; - int i; - - pr_devel(" -> OBR %s [%x] +%016llx\n", - bus->self ? pci_name(bus->self) : "root", flags, offset); - - pci_bus_for_each_resource(bus, r, i) { - if (r && (r->flags & flags)) { - r->start += offset; - r->end += offset; - } - } - list_for_each_entry(dev, &bus->devices, bus_list) - pnv_ioda_offset_dev(dev, flags, offset); - list_for_each_entry(cbus, &bus->children, node) - pnv_ioda_offset_bus(cbus, flags, offset); - - pr_devel(" <- OBR %s [%x]\n", - bus->self ? pci_name(bus->self) : "root", flags); -} - -/* This is the guts of our IODA resource allocation. This is called - * recursively for each bus in the system. It calculates all the - * necessary size and requirements for children and assign them - * resources such that: - * - * - Each function fits in it's own contiguous set of IO/M32 - * segment - * - * - All segments behind a P2P bridge are contiguous and obey - * alignment constraints of those bridges - */ -static void __devinit pnv_ioda_calc_bus(struct pci_bus *bus, unsigned int flags, - resource_size_t *size, - resource_size_t *align) -{ - struct pci_controller *hose = pci_bus_to_host(bus); - struct pnv_phb *phb = hose->private_data; - resource_size_t dev_size, dev_align, start; - resource_size_t min_align, min_balign; - struct pci_dev *cdev; - struct pci_bus *cbus; - struct list_head head; - struct resource_wrap *w; - unsigned int bres; - - *size = *align = 0; - - pr_devel("-> CBR %s [%x]\n", - bus->self ? pci_name(bus->self) : "root", flags); - - /* Calculate alignment requirements based on the type - * of resource we are working on - */ - if (flags & IORESOURCE_IO) { - bres = 0; - min_align = phb->ioda.io_segsize; - min_balign = 0x1000; - } else { - bres = 1; - min_align = phb->ioda.m32_segsize; - min_balign = 0x100000; - } - - /* Gather all our children resources ordered by alignment */ - INIT_LIST_HEAD(&head); - - /* - Busses */ - list_for_each_entry(cbus, &bus->children, node) { - pnv_ioda_calc_bus(cbus, flags, &dev_size, &dev_align); - pnv_ioda_add_wrap(&head, cbus, NULL, dev_size, dev_align); - } - - /* - Devices */ - list_for_each_entry(cdev, &bus->devices, bus_list) { - pnv_ioda_calc_dev(cdev, flags, &dev_size, &dev_align); - /* Align them to segment size */ - if (dev_align < min_align) - dev_align = min_align; - pnv_ioda_add_wrap(&head, NULL, cdev, dev_size, dev_align); - } - if (list_empty(&head)) - goto empty; - - /* Now we can do two things: assign offsets to them within that - * level and get our total alignment & size requirements. The - * assignment algorithm is going to be uber-trivial for now, we - * can try to be smarter later at filling out holes. - */ - if (bus->self) { - /* No offset for downstream bridges */ - start = 0; - } else { - /* Offset from the root */ - if (flags & IORESOURCE_IO) - /* Don't hand out IO 0 */ - start = hose->io_resource.start + 0x1000; - else - start = hose->mem_resources[0].start; - } - while(!list_empty(&head)) { - w = list_first_entry(&head, struct resource_wrap, link); - list_del(&w->link); - if (w->size) { - if (start) { - start = ALIGN(start, w->align); - if (w->dev) - pnv_ioda_offset_dev(w->dev,flags,start); - else if (w->bus) - pnv_ioda_offset_bus(w->bus,flags,start); - } - if (w->align > *align) - *align = w->align; - } - start += w->size; - kfree(w); - } - *size = start; - - /* Align and setup bridge resources */ - *align = max_t(resource_size_t, *align, - max_t(resource_size_t, min_align, min_balign)); - *size = ALIGN(*size, - max_t(resource_size_t, min_align, min_balign)); - empty: - /* Only setup P2P's, not the PHB itself */ - if (bus->self) { - struct resource *res = bus->resource[bres]; - - if (WARN_ON(res == NULL)) - return; - - /* - * FIXME: We should probably export and call - * pci_bridge_check_ranges() to properly re-initialize - * the PCI portion of the flags here, and to detect - * what the bridge actually supports. - */ - res->start = 0; - res->flags = (*size) ? flags : 0; - res->end = (*size) ? (*size - 1) : 0; - } - - pr_devel("<- CBR %s [%x] *size=%016llx *align=%016llx\n", - bus->self ? pci_name(bus->self) : "root", flags,*size,*align); -} - static struct pci_dn *pnv_ioda_get_pdn(struct pci_dev *dev) { struct device_node *np; @@ -355,172 +79,6 @@ static struct pci_dn *pnv_ioda_get_pdn(struct pci_dev *dev) return PCI_DN(np); } -static void __devinit pnv_ioda_setup_pe_segments(struct pci_dev *dev) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - struct pci_dn *pdn = pnv_ioda_get_pdn(dev); - unsigned int pe, i; - resource_size_t pos; - struct resource io_res; - struct resource m32_res; - struct pci_bus_region region; - int rc; - - /* Anything not referenced in the device-tree gets PE#0 */ - pe = pdn ? pdn->pe_number : 0; - - /* Calculate the device min/max */ - io_res.start = m32_res.start = (resource_size_t)-1; - io_res.end = m32_res.end = 0; - io_res.flags = IORESOURCE_IO; - m32_res.flags = IORESOURCE_MEM; - - for (i = 0; i <= PCI_ROM_RESOURCE; i++) { - struct resource *r = NULL; - if (dev->resource[i].flags & IORESOURCE_IO) - r = &io_res; - if (dev->resource[i].flags & IORESOURCE_MEM) - r = &m32_res; - if (!r) - continue; - if (dev->resource[i].start < r->start) - r->start = dev->resource[i].start; - if (dev->resource[i].end > r->end) - r->end = dev->resource[i].end; - } - - /* Setup IO segments */ - if (io_res.start < io_res.end) { - pcibios_resource_to_bus(dev, ®ion, &io_res); - pos = region.start; - i = pos / phb->ioda.io_segsize; - while(i < phb->ioda.total_pe && pos <= region.end) { - if (phb->ioda.io_segmap[i]) { - pr_err("%s: Trying to use IO seg #%d which is" - " already used by PE# %d\n", - pci_name(dev), i, - phb->ioda.io_segmap[i]); - /* XXX DO SOMETHING TO DISABLE DEVICE ? */ - break; - } - phb->ioda.io_segmap[i] = pe; - rc = opal_pci_map_pe_mmio_window(phb->opal_id, pe, - OPAL_IO_WINDOW_TYPE, - 0, i); - if (rc != OPAL_SUCCESS) { - pr_err("%s: OPAL error %d setting up mapping" - " for IO seg# %d\n", - pci_name(dev), rc, i); - /* XXX DO SOMETHING TO DISABLE DEVICE ? */ - break; - } - pos += phb->ioda.io_segsize; - i++; - }; - } - - /* Setup M32 segments */ - if (m32_res.start < m32_res.end) { - pcibios_resource_to_bus(dev, ®ion, &m32_res); - pos = region.start; - i = pos / phb->ioda.m32_segsize; - while(i < phb->ioda.total_pe && pos <= region.end) { - if (phb->ioda.m32_segmap[i]) { - pr_err("%s: Trying to use M32 seg #%d which is" - " already used by PE# %d\n", - pci_name(dev), i, - phb->ioda.m32_segmap[i]); - /* XXX DO SOMETHING TO DISABLE DEVICE ? */ - break; - } - phb->ioda.m32_segmap[i] = pe; - rc = opal_pci_map_pe_mmio_window(phb->opal_id, pe, - OPAL_M32_WINDOW_TYPE, - 0, i); - if (rc != OPAL_SUCCESS) { - pr_err("%s: OPAL error %d setting up mapping" - " for M32 seg# %d\n", - pci_name(dev), rc, i); - /* XXX DO SOMETHING TO DISABLE DEVICE ? */ - break; - } - pos += phb->ioda.m32_segsize; - i++; - } - } -} - -/* Check if a resource still fits in the total IO or M32 range - * for a given PHB - */ -static int __devinit pnv_ioda_resource_fit(struct pci_controller *hose, - struct resource *r) -{ - struct resource *bounds; - - if (r->flags & IORESOURCE_IO) - bounds = &hose->io_resource; - else if (r->flags & IORESOURCE_MEM) - bounds = &hose->mem_resources[0]; - else - return 1; - - if (r->start >= bounds->start && r->end <= bounds->end) - return 1; - r->flags = 0; - return 0; -} - -static void __devinit pnv_ioda_update_resources(struct pci_bus *bus) -{ - struct pci_controller *hose = pci_bus_to_host(bus); - struct pci_bus *cbus; - struct pci_dev *cdev; - unsigned int i; - - /* We used to clear all device enables here. However it looks like - * clearing MEM enable causes Obsidian (IPR SCS) to go bonkers, - * and shoot fatal errors to the PHB which in turns fences itself - * and we can't recover from that ... yet. So for now, let's leave - * the enables as-is and hope for the best. - */ - - /* Check if bus resources fit in our IO or M32 range */ - for (i = 0; bus->self && (i < 2); i++) { - struct resource *r = bus->resource[i]; - if (r && !pnv_ioda_resource_fit(hose, r)) - pr_err("%s: Bus %d resource %d disabled, no room\n", - pci_name(bus->self), bus->number, i); - } - - /* Update self if it's not a PHB */ - if (bus->self) - pci_setup_bridge(bus); - - /* Update child devices */ - list_for_each_entry(cdev, &bus->devices, bus_list) { - /* Check if resource fits, if not, disabled it */ - for (i = 0; i <= PCI_ROM_RESOURCE; i++) { - struct resource *r = &cdev->resource[i]; - if (!pnv_ioda_resource_fit(hose, r)) - pr_err("%s: Resource %d disabled, no room\n", - pci_name(cdev), i); - } - - /* Assign segments */ - pnv_ioda_setup_pe_segments(cdev); - - /* Update HW BARs */ - for (i = 0; i <= PCI_ROM_RESOURCE; i++) - pci_update_resource(cdev, i); - } - - /* Update child busses */ - list_for_each_entry(cbus, &bus->children, node) - pnv_ioda_update_resources(cbus); -} - static int __devinit pnv_ioda_alloc_pe(struct pnv_phb *phb) { unsigned long pe; @@ -548,7 +106,7 @@ static void __devinit pnv_ioda_free_pe(struct pnv_phb *phb, int pe) * but in the meantime, we need to protect them to avoid warnings */ #ifdef CONFIG_PCI_MSI -static struct pnv_ioda_pe * __devinit __pnv_ioda_get_one_pe(struct pci_dev *dev) +static struct pnv_ioda_pe * __devinit pnv_ioda_get_pe(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); struct pnv_phb *phb = hose->private_data; @@ -560,19 +118,6 @@ static struct pnv_ioda_pe * __devinit __pnv_ioda_get_one_pe(struct pci_dev *dev) return NULL; return &phb->ioda.pe_array[pdn->pe_number]; } - -static struct pnv_ioda_pe * __devinit pnv_ioda_get_pe(struct pci_dev *dev) -{ - struct pnv_ioda_pe *pe = __pnv_ioda_get_one_pe(dev); - - while (!pe && dev->bus->self) { - dev = dev->bus->self; - pe = __pnv_ioda_get_one_pe(dev); - if (pe) - pe = pe->bus_pe; - } - return pe; -} #endif /* CONFIG_PCI_MSI */ static int __devinit pnv_ioda_configure_pe(struct pnv_phb *phb, @@ -589,7 +134,11 @@ static int __devinit pnv_ioda_configure_pe(struct pnv_phb *phb, dcomp = OPAL_IGNORE_RID_DEVICE_NUMBER; fcomp = OPAL_IGNORE_RID_FUNCTION_NUMBER; parent = pe->pbus->self; - count = pe->pbus->busn_res.end - pe->pbus->busn_res.start + 1; + if (pe->flags & PNV_IODA_PE_BUS_ALL) + count = pe->pbus->busn_res.end - pe->pbus->busn_res.start + 1; + else + count = 1; + switch(count) { case 1: bcomp = OpalPciBusAll; break; case 2: bcomp = OpalPciBus7Bits; break; @@ -666,13 +215,13 @@ static void __devinit pnv_ioda_link_pe_by_weight(struct pnv_phb *phb, { struct pnv_ioda_pe *lpe; - list_for_each_entry(lpe, &phb->ioda.pe_list, link) { + list_for_each_entry(lpe, &phb->ioda.pe_dma_list, dma_link) { if (lpe->dma_weight < pe->dma_weight) { - list_add_tail(&pe->link, &lpe->link); + list_add_tail(&pe->dma_link, &lpe->dma_link); return; } } - list_add_tail(&pe->link, &phb->ioda.pe_list); + list_add_tail(&pe->dma_link, &phb->ioda.pe_dma_list); } static unsigned int pnv_ioda_dma_weight(struct pci_dev *dev) @@ -699,6 +248,7 @@ static unsigned int pnv_ioda_dma_weight(struct pci_dev *dev) return 10; } +#if 0 static struct pnv_ioda_pe * __devinit pnv_ioda_setup_dev_PE(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); @@ -767,6 +317,7 @@ static struct pnv_ioda_pe * __devinit pnv_ioda_setup_dev_PE(struct pci_dev *dev) return pe; } +#endif /* Useful for SRIOV case */ static void pnv_ioda_setup_same_PE(struct pci_bus *bus, struct pnv_ioda_pe *pe) { @@ -784,34 +335,33 @@ static void pnv_ioda_setup_same_PE(struct pci_bus *bus, struct pnv_ioda_pe *pe) pdn->pcidev = dev; pdn->pe_number = pe->pe_number; pe->dma_weight += pnv_ioda_dma_weight(dev); - if (dev->subordinate) + if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate) pnv_ioda_setup_same_PE(dev->subordinate, pe); } } -static void __devinit pnv_ioda_setup_bus_PE(struct pci_dev *dev, - struct pnv_ioda_pe *ppe) +/* + * There're 2 types of PCI bus sensitive PEs: One that is compromised of + * single PCI bus. Another one that contains the primary PCI bus and its + * subordinate PCI devices and buses. The second type of PE is normally + * orgiriated by PCIe-to-PCI bridge or PLX switch downstream ports. + */ +static void __devinit pnv_ioda_setup_bus_PE(struct pci_bus *bus, int all) { - struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pci_controller *hose = pci_bus_to_host(bus); struct pnv_phb *phb = hose->private_data; - struct pci_bus *bus = dev->subordinate; struct pnv_ioda_pe *pe; int pe_num; - if (!bus) { - pr_warning("%s: Bridge without a subordinate bus !\n", - pci_name(dev)); - return; - } pe_num = pnv_ioda_alloc_pe(phb); if (pe_num == IODA_INVALID_PE) { - pr_warning("%s: Not enough PE# available, disabling bus\n", - pci_name(dev)); + pr_warning("%s: Not enough PE# available for PCI bus %04x:%02x\n", + __func__, pci_domain_nr(bus), bus->number); return; } pe = &phb->ioda.pe_array[pe_num]; - ppe->bus_pe = pe; + pe->flags = (all ? PNV_IODA_PE_BUS_ALL : PNV_IODA_PE_BUS); pe->pbus = bus; pe->pdev = NULL; pe->tce32_seg = -1; @@ -819,8 +369,12 @@ static void __devinit pnv_ioda_setup_bus_PE(struct pci_dev *dev, pe->rid = bus->busn_res.start << 8; pe->dma_weight = 0; - pe_info(pe, "Secondary busses %pR associated with PE\n", - &bus->busn_res); + if (all) + pe_info(pe, "Secondary bus %d..%d associated with PE#%d\n", + bus->busn_res.start, bus->busn_res.end, pe_num); + else + pe_info(pe, "Secondary bus %d associated with PE#%d\n", + bus->busn_res.start, pe_num); if (pnv_ioda_configure_pe(phb, pe)) { /* XXX What do we do here ? */ @@ -833,6 +387,9 @@ static void __devinit pnv_ioda_setup_bus_PE(struct pci_dev *dev, /* Associate it with all child devices */ pnv_ioda_setup_same_PE(bus, pe); + /* Put PE to the list */ + list_add_tail(&pe->list, &phb->ioda.pe_list); + /* Account for one DMA PE if at least one DMA capable device exist * below the bridge */ @@ -848,17 +405,33 @@ static void __devinit pnv_ioda_setup_bus_PE(struct pci_dev *dev, static void __devinit pnv_ioda_setup_PEs(struct pci_bus *bus) { struct pci_dev *dev; - struct pnv_ioda_pe *pe; + + pnv_ioda_setup_bus_PE(bus, 0); list_for_each_entry(dev, &bus->devices, bus_list) { - pe = pnv_ioda_setup_dev_PE(dev); - if (pe == NULL) - continue; - /* Leaving the PCIe domain ... single PE# */ - if (pci_pcie_type(dev) == PCI_EXP_TYPE_PCI_BRIDGE) - pnv_ioda_setup_bus_PE(dev, pe); - else if (dev->subordinate) - pnv_ioda_setup_PEs(dev->subordinate); + if (dev->subordinate) { + if (pci_pcie_type(dev) == PCI_EXP_TYPE_PCI_BRIDGE) + pnv_ioda_setup_bus_PE(dev->subordinate, 1); + else + pnv_ioda_setup_PEs(dev->subordinate); + } + } +} + +/* + * Configure PEs so that the downstream PCI buses and devices + * could have their associated PE#. Unfortunately, we didn't + * figure out the way to identify the PLX bridge yet. So we + * simply put the PCI bus and the subordinate behind the root + * port to PE# here. The game rule here is expected to be changed + * as soon as we can detected PLX bridge correctly. + */ +static void __devinit pnv_pci_ioda_setup_PEs(void) +{ + struct pci_controller *hose, *tmp; + + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + pnv_ioda_setup_PEs(hose->bus); } } @@ -1000,7 +573,7 @@ static void __devinit pnv_ioda_setup_dma(struct pnv_phb *phb) remaining = phb->ioda.tce32_count; tw = phb->ioda.dma_weight; base = 0; - list_for_each_entry(pe, &phb->ioda.pe_list, link) { + list_for_each_entry(pe, &phb->ioda.pe_dma_list, dma_link) { if (!pe->dma_weight) continue; if (!remaining) { @@ -1109,36 +682,115 @@ static void pnv_pci_init_ioda_msis(struct pnv_phb *phb) static void pnv_pci_init_ioda_msis(struct pnv_phb *phb) { } #endif /* CONFIG_PCI_MSI */ -/* This is the starting point of our IODA specific resource - * allocation process +/* + * This function is supposed to be called on basis of PE from top + * to bottom style. So the the I/O or MMIO segment assigned to + * parent PE could be overrided by its child PEs if necessary. */ -static void __devinit pnv_pci_ioda_fixup_phb(struct pci_controller *hose) +static void __devinit pnv_ioda_setup_pe_seg(struct pci_controller *hose, + struct pnv_ioda_pe *pe) { - resource_size_t size, align; - struct pci_bus *child; + struct pnv_phb *phb = hose->private_data; + struct pci_bus_region region; + struct resource *res; + int i, index; + int rc; - /* Associate PEs per functions */ - pnv_ioda_setup_PEs(hose->bus); + /* + * NOTE: We only care PCI bus based PE for now. For PCI + * device based PE, for example SRIOV sensitive VF should + * be figured out later. + */ + BUG_ON(!(pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL))); - /* Calculate all resources */ - pnv_ioda_calc_bus(hose->bus, IORESOURCE_IO, &size, &align); - pnv_ioda_calc_bus(hose->bus, IORESOURCE_MEM, &size, &align); + pci_bus_for_each_resource(pe->pbus, res, i) { + if (!res || !res->flags || + res->start > res->end) + continue; - /* Apply then to HW */ - pnv_ioda_update_resources(hose->bus); + if (res->flags & IORESOURCE_IO) { + region.start = res->start - phb->ioda.io_pci_base; + region.end = res->end - phb->ioda.io_pci_base; + index = region.start / phb->ioda.io_segsize; + + while (index < phb->ioda.total_pe && + region.start <= region.end) { + phb->ioda.io_segmap[index] = pe->pe_number; + rc = opal_pci_map_pe_mmio_window(phb->opal_id, + pe->pe_number, OPAL_IO_WINDOW_TYPE, 0, index); + if (rc != OPAL_SUCCESS) { + pr_err("%s: OPAL error %d when mapping IO " + "segment #%d to PE#%d\n", + __func__, rc, index, pe->pe_number); + break; + } + + region.start += phb->ioda.io_segsize; + index++; + } + } else if (res->flags & IORESOURCE_MEM) { + region.start = res->start - + hose->pci_mem_offset - + phb->ioda.m32_pci_base; + region.end = res->end - + hose->pci_mem_offset - + phb->ioda.m32_pci_base; + index = region.start / phb->ioda.m32_segsize; + + while (index < phb->ioda.total_pe && + region.start <= region.end) { + phb->ioda.m32_segmap[index] = pe->pe_number; + rc = opal_pci_map_pe_mmio_window(phb->opal_id, + pe->pe_number, OPAL_M32_WINDOW_TYPE, 0, index); + if (rc != OPAL_SUCCESS) { + pr_err("%s: OPAL error %d when mapping M32 " + "segment#%d to PE#%d", + __func__, rc, index, pe->pe_number); + break; + } + + region.start += phb->ioda.m32_segsize; + index++; + } + } + } +} - /* Setup DMA */ - pnv_ioda_setup_dma(hose->private_data); +static void __devinit pnv_pci_ioda_setup_seg(void) +{ + struct pci_controller *tmp, *hose; + struct pnv_phb *phb; + struct pnv_ioda_pe *pe; - /* Configure PCI Express settings */ - list_for_each_entry(child, &hose->bus->children, node) { - struct pci_dev *self = child->self; - if (!self) - continue; - pcie_bus_configure_settings(child, self->pcie_mpss); + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + phb = hose->private_data; + list_for_each_entry(pe, &phb->ioda.pe_list, list) { + pnv_ioda_setup_pe_seg(hose, pe); + } + } +} + +static void __devinit pnv_pci_ioda_setup_DMA(void) +{ + struct pci_controller *hose, *tmp; + struct pnv_phb *phb; + + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + pnv_ioda_setup_dma(hose->private_data); + + /* Mark the PHB initialization done */ + phb = hose->private_data; + phb->initialized = 1; } } +static void __devinit pnv_pci_ioda_fixup(void) +{ + pnv_pci_ioda_setup_PEs(); + pnv_pci_ioda_setup_seg(); + pnv_pci_ioda_setup_DMA(); +} + /* * Returns the alignment for I/O or memory windows for P2P * bridges. That actually depends on how PEs are segmented. @@ -1182,10 +834,22 @@ static resource_size_t pnv_pci_window_alignment(struct pci_bus *bus, */ static int __devinit pnv_pci_enable_device_hook(struct pci_dev *dev) { - struct pci_dn *pdn = pnv_ioda_get_pdn(dev); + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + struct pci_dn *pdn; + /* The function is probably called while the PEs have + * not be created yet. For example, resource reassignment + * during PCI probe period. We just skip the check if + * PEs isn't ready. + */ + if (!phb->initialized) + return 0; + + pdn = pnv_ioda_get_pdn(dev); if (!pdn || pdn->pe_number == IODA_INVALID_PE) return -EINVAL; + return 0; } @@ -1276,9 +940,9 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np) /* Allocate aux data & arrays */ size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long)); m32map_off = size; - size += phb->ioda.total_pe; + size += phb->ioda.total_pe * sizeof(phb->ioda.m32_segmap[0]); iomap_off = size; - size += phb->ioda.total_pe; + size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]); pemap_off = size; size += phb->ioda.total_pe * sizeof(struct pnv_ioda_pe); aux = alloc_bootmem(size); @@ -1289,6 +953,7 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np) phb->ioda.pe_array = aux + pemap_off; set_bit(0, phb->ioda.pe_alloc); + INIT_LIST_HEAD(&phb->ioda.pe_dma_list); INIT_LIST_HEAD(&phb->ioda.pe_list); /* Calculate how many 32-bit TCE segments we have */ @@ -1337,15 +1002,17 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np) /* Setup MSI support */ pnv_pci_init_ioda_msis(phb); - /* We set both PCI_PROBE_ONLY and PCI_REASSIGN_ALL_RSRC. This is an - * odd combination which essentially means that we skip all resource - * fixups and assignments in the generic code, and do it all - * ourselves here + /* + * We pass the PCI probe flag PCI_REASSIGN_ALL_RSRC here + * to let the PCI core do resource assignment. It's supposed + * that the PCI core will do correct I/O and MMIO alignment + * for the P2P bridge bars so that each PCI bus (excluding + * the child P2P bridges) can form individual PE. */ - ppc_md.pcibios_fixup_phb = pnv_pci_ioda_fixup_phb; + ppc_md.pcibios_fixup = pnv_pci_ioda_fixup; ppc_md.pcibios_enable_device_hook = pnv_pci_enable_device_hook; ppc_md.pcibios_window_alignment = pnv_pci_window_alignment; - pci_add_flags(PCI_PROBE_ONLY | PCI_REASSIGN_ALL_RSRC); + pci_add_flags(PCI_REASSIGN_ALL_RSRC); /* Reset IODA tables to a clean state */ rc = opal_pci_reset(phb_id, OPAL_PCI_IODA_TABLE_RESET, OPAL_ASSERT_RESET); diff --git a/arch/powerpc/platforms/powernv/pci-p5ioc2.c b/arch/powerpc/platforms/powernv/pci-p5ioc2.c index 2649677..6b4bef4 100644 --- a/arch/powerpc/platforms/powernv/pci-p5ioc2.c +++ b/arch/powerpc/platforms/powernv/pci-p5ioc2.c @@ -30,7 +30,6 @@ #include <asm/opal.h> #include <asm/iommu.h> #include <asm/tce.h> -#include <asm/abs_addr.h> #include "powernv.h" #include "pci.h" diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index be3cfc5c..c01688a 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -30,7 +30,6 @@ #include <asm/opal.h> #include <asm/iommu.h> #include <asm/tce.h> -#include <asm/abs_addr.h> #include <asm/firmware.h> #include "powernv.h" @@ -447,6 +446,11 @@ static void pnv_tce_free(struct iommu_table *tbl, long index, long npages) pnv_tce_invalidate(tbl, tces, tcep - 1); } +static unsigned long pnv_tce_get(struct iommu_table *tbl, long index) +{ + return ((u64 *)tbl->it_base)[index - tbl->it_offset]; +} + void pnv_pci_setup_iommu_table(struct iommu_table *tbl, void *tce_mem, u64 tce_size, u64 dma_offset) @@ -597,6 +601,7 @@ void __init pnv_pci_init(void) ppc_md.pci_dma_dev_setup = pnv_pci_dma_dev_setup; ppc_md.tce_build = pnv_tce_build; ppc_md.tce_free = pnv_tce_free; + ppc_md.tce_get = pnv_tce_get; ppc_md.pci_probe_mode = pnv_pci_probe_mode; set_pci_dma_ops(&dma_iommu_ops); diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 8bc4796..7cfb7c8 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -17,9 +17,14 @@ enum pnv_phb_model { }; #define PNV_PCI_DIAG_BUF_SIZE 4096 +#define PNV_IODA_PE_DEV (1 << 0) /* PE has single PCI device */ +#define PNV_IODA_PE_BUS (1 << 1) /* PE has primary PCI bus */ +#define PNV_IODA_PE_BUS_ALL (1 << 2) /* PE has subordinate buses */ /* Data associated with a PE, including IOMMU tracking etc.. */ struct pnv_ioda_pe { + unsigned long flags; + /* A PE can be associated with a single device or an * entire bus (& children). In the former case, pdev * is populated, in the later case, pbus is. @@ -40,11 +45,6 @@ struct pnv_ioda_pe { */ unsigned int dma_weight; - /* This is a PCI-E -> PCI-X bridge, this points to the - * corresponding bus PE - */ - struct pnv_ioda_pe *bus_pe; - /* "Base" iommu table, ie, 4K TCEs, 32-bit DMA */ int tce32_seg; int tce32_segcount; @@ -59,7 +59,8 @@ struct pnv_ioda_pe { int mve_number; /* Link in list of PE#s */ - struct list_head link; + struct list_head dma_link; + struct list_head list; }; struct pnv_phb { @@ -68,6 +69,7 @@ struct pnv_phb { enum pnv_phb_model model; u64 opal_id; void __iomem *regs; + int initialized; spinlock_t lock; #ifdef CONFIG_PCI_MSI @@ -107,6 +109,11 @@ struct pnv_phb { unsigned int *io_segmap; struct pnv_ioda_pe *pe_array; + /* Sorted list of used PE's based + * on the sequence of creation + */ + struct list_head pe_list; + /* Reverse map of PEs, will have to extend if * we are to support more than 256 PEs, indexed * bus { bus, devfn } @@ -125,7 +132,7 @@ struct pnv_phb { /* Sorted list of used PE's, sorted at * boot for resource allocation purposes */ - struct list_head pe_list; + struct list_head pe_dma_list; } ioda; }; diff --git a/arch/powerpc/platforms/ps3/htab.c b/arch/powerpc/platforms/ps3/htab.c index 3124cf7..d00d7b0 100644 --- a/arch/powerpc/platforms/ps3/htab.c +++ b/arch/powerpc/platforms/ps3/htab.c @@ -43,7 +43,7 @@ enum ps3_lpar_vas_id { static DEFINE_SPINLOCK(ps3_htab_lock); -static long ps3_hpte_insert(unsigned long hpte_group, unsigned long va, +static long ps3_hpte_insert(unsigned long hpte_group, unsigned long vpn, unsigned long pa, unsigned long rflags, unsigned long vflags, int psize, int ssize) { @@ -61,7 +61,7 @@ static long ps3_hpte_insert(unsigned long hpte_group, unsigned long va, */ vflags &= ~HPTE_V_SECONDARY; - hpte_v = hpte_encode_v(va, psize, ssize) | vflags | HPTE_V_VALID; + hpte_v = hpte_encode_v(vpn, psize, ssize) | vflags | HPTE_V_VALID; hpte_r = hpte_encode_r(ps3_mm_phys_to_lpar(pa), psize) | rflags; spin_lock_irqsave(&ps3_htab_lock, flags); @@ -75,8 +75,8 @@ static long ps3_hpte_insert(unsigned long hpte_group, unsigned long va, if (result) { /* all entries bolted !*/ - pr_info("%s:result=%d va=%lx pa=%lx ix=%lx v=%llx r=%llx\n", - __func__, result, va, pa, hpte_group, hpte_v, hpte_r); + pr_info("%s:result=%d vpn=%lx pa=%lx ix=%lx v=%llx r=%llx\n", + __func__, result, vpn, pa, hpte_group, hpte_v, hpte_r); BUG(); } @@ -107,7 +107,7 @@ static long ps3_hpte_remove(unsigned long hpte_group) } static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp, - unsigned long va, int psize, int ssize, int local) + unsigned long vpn, int psize, int ssize, int local) { int result; u64 hpte_v, want_v, hpte_rs; @@ -115,7 +115,7 @@ static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp, unsigned long flags; long ret; - want_v = hpte_encode_v(va, psize, ssize); + want_v = hpte_encode_v(vpn, psize, ssize); spin_lock_irqsave(&ps3_htab_lock, flags); @@ -125,8 +125,8 @@ static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp, &hpte_rs); if (result) { - pr_info("%s: res=%d read va=%lx slot=%lx psize=%d\n", - __func__, result, va, slot, psize); + pr_info("%s: res=%d read vpn=%lx slot=%lx psize=%d\n", + __func__, result, vpn, slot, psize); BUG(); } @@ -159,7 +159,7 @@ static void ps3_hpte_updateboltedpp(unsigned long newpp, unsigned long ea, panic("ps3_hpte_updateboltedpp() not implemented"); } -static void ps3_hpte_invalidate(unsigned long slot, unsigned long va, +static void ps3_hpte_invalidate(unsigned long slot, unsigned long vpn, int psize, int ssize, int local) { unsigned long flags; @@ -170,8 +170,8 @@ static void ps3_hpte_invalidate(unsigned long slot, unsigned long va, result = lv1_write_htab_entry(PS3_LPAR_VAS_ID_CURRENT, slot, 0, 0); if (result) { - pr_info("%s: res=%d va=%lx slot=%lx psize=%d\n", - __func__, result, va, slot, psize); + pr_info("%s: res=%d vpn=%lx slot=%lx psize=%d\n", + __func__, result, vpn, slot, psize); BUG(); } diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c index 2d664c5..3f509f8 100644 --- a/arch/powerpc/platforms/ps3/setup.c +++ b/arch/powerpc/platforms/ps3/setup.c @@ -184,11 +184,15 @@ early_param("ps3flash", early_parse_ps3flash); #define prealloc_ps3flash_bounce_buffer() do { } while (0) #endif -static int ps3_set_dabr(unsigned long dabr) +static int ps3_set_dabr(unsigned long dabr, unsigned long dabrx) { - enum {DABR_USER = 1, DABR_KERNEL = 2,}; + /* Have to set at least one bit in the DABRX */ + if (dabrx == 0 && dabr == 0) + dabrx = DABRX_USER; + /* hypervisor only allows us to set BTI, Kernel and user */ + dabrx &= DABRX_BTI | DABRX_KERNEL | DABRX_USER; - return lv1_set_dabr(dabr, DABR_KERNEL | DABR_USER) ? -1 : 0; + return lv1_set_dabr(dabr, dabrx) ? -1 : 0; } static void __init ps3_setup_arch(void) diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile index c222189..890622b 100644 --- a/arch/powerpc/platforms/pseries/Makefile +++ b/arch/powerpc/platforms/pseries/Makefile @@ -6,8 +6,9 @@ obj-y := lpar.o hvCall.o nvram.o reconfig.o \ firmware.o power.o dlpar.o mobility.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_SCANLOG) += scanlog.o -obj-$(CONFIG_EEH) += eeh.o eeh_dev.o eeh_cache.o eeh_driver.o \ - eeh_event.o eeh_sysfs.o eeh_pseries.o +obj-$(CONFIG_EEH) += eeh.o eeh_pe.o eeh_dev.o eeh_cache.o \ + eeh_driver.o eeh_event.o eeh_sysfs.o \ + eeh_pseries.o obj-$(CONFIG_KEXEC) += kexec.o obj-$(CONFIG_PCI) += pci.o pci_dlpar.o obj-$(CONFIG_PSERIES_MSI) += msi.o diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index ecd394c..9a04322 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -92,6 +92,20 @@ struct eeh_ops *eeh_ops = NULL; int eeh_subsystem_enabled; EXPORT_SYMBOL(eeh_subsystem_enabled); +/* + * EEH probe mode support. The intention is to support multiple + * platforms for EEH. Some platforms like pSeries do PCI emunation + * based on device tree. However, other platforms like powernv probe + * PCI devices from hardware. The flag is used to distinguish that. + * In addition, struct eeh_ops::probe would be invoked for particular + * OF node or PCI device so that the corresponding PE would be created + * there. + */ +int eeh_probe_mode; + +/* Global EEH mutex */ +DEFINE_MUTEX(eeh_mutex); + /* Lock to avoid races due to multiple reports of an error */ static DEFINE_RAW_SPINLOCK(confirm_error_lock); @@ -204,22 +218,12 @@ static size_t eeh_gather_pci_data(struct eeh_dev *edev, char * buf, size_t len) } } - /* Gather status on devices under the bridge */ - if (dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) { - struct device_node *child; - - for_each_child_of_node(dn, child) { - if (of_node_to_eeh_dev(child)) - n += eeh_gather_pci_data(of_node_to_eeh_dev(child), buf+n, len-n); - } - } - return n; } /** * eeh_slot_error_detail - Generate combined log including driver log and error log - * @edev: device to report error log for + * @pe: EEH PE * @severity: temporary or permanent error log * * This routine should be called to generate the combined log, which @@ -227,17 +231,22 @@ static size_t eeh_gather_pci_data(struct eeh_dev *edev, char * buf, size_t len) * out from the config space of the corresponding PCI device, while * the error log is fetched through platform dependent function call. */ -void eeh_slot_error_detail(struct eeh_dev *edev, int severity) +void eeh_slot_error_detail(struct eeh_pe *pe, int severity) { size_t loglen = 0; - pci_regs_buf[0] = 0; + struct eeh_dev *edev; - eeh_pci_enable(edev, EEH_OPT_THAW_MMIO); - eeh_ops->configure_bridge(eeh_dev_to_of_node(edev)); - eeh_restore_bars(edev); - loglen = eeh_gather_pci_data(edev, pci_regs_buf, EEH_PCI_REGS_LOG_LEN); + eeh_pci_enable(pe, EEH_OPT_THAW_MMIO); + eeh_ops->configure_bridge(pe); + eeh_pe_restore_bars(pe); - eeh_ops->get_log(eeh_dev_to_of_node(edev), severity, pci_regs_buf, loglen); + pci_regs_buf[0] = 0; + eeh_pe_for_each_dev(pe, edev) { + loglen += eeh_gather_pci_data(edev, pci_regs_buf, + EEH_PCI_REGS_LOG_LEN); + } + + eeh_ops->get_log(pe, severity, pci_regs_buf, loglen); } /** @@ -261,126 +270,8 @@ static inline unsigned long eeh_token_to_phys(unsigned long token) } /** - * eeh_find_device_pe - Retrieve the PE for the given device - * @dn: device node - * - * Return the PE under which this device lies - */ -struct device_node *eeh_find_device_pe(struct device_node *dn) -{ - while (dn->parent && of_node_to_eeh_dev(dn->parent) && - (of_node_to_eeh_dev(dn->parent)->mode & EEH_MODE_SUPPORTED)) { - dn = dn->parent; - } - return dn; -} - -/** - * __eeh_mark_slot - Mark all child devices as failed - * @parent: parent device - * @mode_flag: failure flag - * - * Mark all devices that are children of this device as failed. - * Mark the device driver too, so that it can see the failure - * immediately; this is critical, since some drivers poll - * status registers in interrupts ... If a driver is polling, - * and the slot is frozen, then the driver can deadlock in - * an interrupt context, which is bad. - */ -static void __eeh_mark_slot(struct device_node *parent, int mode_flag) -{ - struct device_node *dn; - - for_each_child_of_node(parent, dn) { - if (of_node_to_eeh_dev(dn)) { - /* Mark the pci device driver too */ - struct pci_dev *dev = of_node_to_eeh_dev(dn)->pdev; - - of_node_to_eeh_dev(dn)->mode |= mode_flag; - - if (dev && dev->driver) - dev->error_state = pci_channel_io_frozen; - - __eeh_mark_slot(dn, mode_flag); - } - } -} - -/** - * eeh_mark_slot - Mark the indicated device and its children as failed - * @dn: parent device - * @mode_flag: failure flag - * - * Mark the indicated device and its child devices as failed. - * The device drivers are marked as failed as well. - */ -void eeh_mark_slot(struct device_node *dn, int mode_flag) -{ - struct pci_dev *dev; - dn = eeh_find_device_pe(dn); - - /* Back up one, since config addrs might be shared */ - if (!pcibios_find_pci_bus(dn) && of_node_to_eeh_dev(dn->parent)) - dn = dn->parent; - - of_node_to_eeh_dev(dn)->mode |= mode_flag; - - /* Mark the pci device too */ - dev = of_node_to_eeh_dev(dn)->pdev; - if (dev) - dev->error_state = pci_channel_io_frozen; - - __eeh_mark_slot(dn, mode_flag); -} - -/** - * __eeh_clear_slot - Clear failure flag for the child devices - * @parent: parent device - * @mode_flag: flag to be cleared - * - * Clear failure flag for the child devices. - */ -static void __eeh_clear_slot(struct device_node *parent, int mode_flag) -{ - struct device_node *dn; - - for_each_child_of_node(parent, dn) { - if (of_node_to_eeh_dev(dn)) { - of_node_to_eeh_dev(dn)->mode &= ~mode_flag; - of_node_to_eeh_dev(dn)->check_count = 0; - __eeh_clear_slot(dn, mode_flag); - } - } -} - -/** - * eeh_clear_slot - Clear failure flag for the indicated device and its children - * @dn: parent device - * @mode_flag: flag to be cleared - * - * Clear failure flag for the indicated device and its children. - */ -void eeh_clear_slot(struct device_node *dn, int mode_flag) -{ - unsigned long flags; - raw_spin_lock_irqsave(&confirm_error_lock, flags); - - dn = eeh_find_device_pe(dn); - - /* Back up one, since config addrs might be shared */ - if (!pcibios_find_pci_bus(dn) && of_node_to_eeh_dev(dn->parent)) - dn = dn->parent; - - of_node_to_eeh_dev(dn)->mode &= ~mode_flag; - of_node_to_eeh_dev(dn)->check_count = 0; - __eeh_clear_slot(dn, mode_flag); - raw_spin_unlock_irqrestore(&confirm_error_lock, flags); -} - -/** - * eeh_dn_check_failure - Check if all 1's data is due to EEH slot freeze - * @dn: device node - * @dev: pci device, if known + * eeh_dev_check_failure - Check if all 1's data is due to EEH slot freeze + * @edev: eeh device * * Check for an EEH failure for the given device node. Call this * routine if the result of a read was all 0xff's and you want to @@ -392,11 +283,13 @@ void eeh_clear_slot(struct device_node *dn, int mode_flag) * * It is safe to call this routine in an interrupt context. */ -int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) +int eeh_dev_check_failure(struct eeh_dev *edev) { int ret; unsigned long flags; - struct eeh_dev *edev; + struct device_node *dn; + struct pci_dev *dev; + struct eeh_pe *pe; int rc = 0; const char *location; @@ -405,23 +298,23 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) if (!eeh_subsystem_enabled) return 0; - if (!dn) { + if (!edev) { eeh_stats.no_dn++; return 0; } - dn = eeh_find_device_pe(dn); - edev = of_node_to_eeh_dev(dn); + dn = eeh_dev_to_of_node(edev); + dev = eeh_dev_to_pci_dev(edev); + pe = edev->pe; /* Access to IO BARs might get this far and still not want checking. */ - if (!(edev->mode & EEH_MODE_SUPPORTED) || - edev->mode & EEH_MODE_NOCHECK) { + if (!pe) { eeh_stats.ignored_check++; - pr_debug("EEH: Ignored check (%x) for %s %s\n", - edev->mode, eeh_pci_name(dev), dn->full_name); + pr_debug("EEH: Ignored check for %s %s\n", + eeh_pci_name(dev), dn->full_name); return 0; } - if (!edev->config_addr && !edev->pe_config_addr) { + if (!pe->addr && !pe->config_addr) { eeh_stats.no_cfg_addr++; return 0; } @@ -434,13 +327,13 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) */ raw_spin_lock_irqsave(&confirm_error_lock, flags); rc = 1; - if (edev->mode & EEH_MODE_ISOLATED) { - edev->check_count++; - if (edev->check_count % EEH_MAX_FAILS == 0) { + if (pe->state & EEH_PE_ISOLATED) { + pe->check_count++; + if (pe->check_count % EEH_MAX_FAILS == 0) { location = of_get_property(dn, "ibm,loc-code", NULL); printk(KERN_ERR "EEH: %d reads ignored for recovering device at " "location=%s driver=%s pci addr=%s\n", - edev->check_count, location, + pe->check_count, location, eeh_driver_name(dev), eeh_pci_name(dev)); printk(KERN_ERR "EEH: Might be infinite loop in %s driver\n", eeh_driver_name(dev)); @@ -456,7 +349,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) * function zero of a multi-function device. * In any case they must share a common PHB. */ - ret = eeh_ops->get_state(dn, NULL); + ret = eeh_ops->get_state(pe, NULL); /* Note that config-io to empty slots may fail; * they are empty when they don't have children. @@ -469,7 +362,7 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) (ret & (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE)) == (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE)) { eeh_stats.false_positives++; - edev->false_positives ++; + pe->false_positives++; rc = 0; goto dn_unlock; } @@ -480,10 +373,10 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) * with other functions on this device, and functions under * bridges. */ - eeh_mark_slot(dn, EEH_MODE_ISOLATED); + eeh_pe_state_mark(pe, EEH_PE_ISOLATED); raw_spin_unlock_irqrestore(&confirm_error_lock, flags); - eeh_send_failure_event(edev); + eeh_send_failure_event(pe); /* Most EEH events are due to device driver bugs. Having * a stack trace will help the device-driver authors figure @@ -497,7 +390,7 @@ dn_unlock: return rc; } -EXPORT_SYMBOL_GPL(eeh_dn_check_failure); +EXPORT_SYMBOL_GPL(eeh_dev_check_failure); /** * eeh_check_failure - Check if all 1's data is due to EEH slot freeze @@ -514,21 +407,19 @@ EXPORT_SYMBOL_GPL(eeh_dn_check_failure); unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val) { unsigned long addr; - struct pci_dev *dev; - struct device_node *dn; + struct eeh_dev *edev; /* Finding the phys addr + pci device; this is pretty quick. */ addr = eeh_token_to_phys((unsigned long __force) token); - dev = pci_addr_cache_get_device(addr); - if (!dev) { + edev = eeh_addr_cache_get_dev(addr); + if (!edev) { eeh_stats.no_device++; return val; } - dn = pci_device_to_OF_node(dev); - eeh_dn_check_failure(dn, dev); + eeh_dev_check_failure(edev); - pci_dev_put(dev); + pci_dev_put(eeh_dev_to_pci_dev(edev)); return val; } @@ -537,23 +428,22 @@ EXPORT_SYMBOL(eeh_check_failure); /** * eeh_pci_enable - Enable MMIO or DMA transfers for this slot - * @edev: pci device node + * @pe: EEH PE * * This routine should be called to reenable frozen MMIO or DMA * so that it would work correctly again. It's useful while doing * recovery or log collection on the indicated device. */ -int eeh_pci_enable(struct eeh_dev *edev, int function) +int eeh_pci_enable(struct eeh_pe *pe, int function) { int rc; - struct device_node *dn = eeh_dev_to_of_node(edev); - rc = eeh_ops->set_option(dn, function); + rc = eeh_ops->set_option(pe, function); if (rc) - printk(KERN_WARNING "EEH: Unexpected state change %d, err=%d dn=%s\n", - function, rc, dn->full_name); + pr_warning("%s: Unexpected state change %d on PHB#%d-PE#%x, err=%d\n", + __func__, function, pe->phb->global_number, pe->addr, rc); - rc = eeh_ops->wait_state(dn, PCI_BUS_RESET_WAIT_MSEC); + rc = eeh_ops->wait_state(pe, PCI_BUS_RESET_WAIT_MSEC); if (rc > 0 && (rc & EEH_STATE_MMIO_ENABLED) && (function == EEH_OPT_THAW_MMIO)) return 0; @@ -571,17 +461,24 @@ int eeh_pci_enable(struct eeh_dev *edev, int function) */ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state) { - struct device_node *dn = pci_device_to_OF_node(dev); + struct eeh_dev *edev = pci_dev_to_eeh_dev(dev); + struct eeh_pe *pe = edev->pe; + + if (!pe) { + pr_err("%s: No PE found on PCI device %s\n", + __func__, pci_name(dev)); + return -EINVAL; + } switch (state) { case pcie_deassert_reset: - eeh_ops->reset(dn, EEH_RESET_DEACTIVATE); + eeh_ops->reset(pe, EEH_RESET_DEACTIVATE); break; case pcie_hot_reset: - eeh_ops->reset(dn, EEH_RESET_HOT); + eeh_ops->reset(pe, EEH_RESET_HOT); break; case pcie_warm_reset: - eeh_ops->reset(dn, EEH_RESET_FUNDAMENTAL); + eeh_ops->reset(pe, EEH_RESET_FUNDAMENTAL); break; default: return -EINVAL; @@ -591,66 +488,37 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state stat } /** - * __eeh_set_pe_freset - Check the required reset for child devices - * @parent: parent device - * @freset: return value - * - * Each device might have its preferred reset type: fundamental or - * hot reset. The routine is used to collect the information from - * the child devices so that they could be reset accordingly. - */ -void __eeh_set_pe_freset(struct device_node *parent, unsigned int *freset) -{ - struct device_node *dn; - - for_each_child_of_node(parent, dn) { - if (of_node_to_eeh_dev(dn)) { - struct pci_dev *dev = of_node_to_eeh_dev(dn)->pdev; - - if (dev && dev->driver) - *freset |= dev->needs_freset; - - __eeh_set_pe_freset(dn, freset); - } - } -} - -/** - * eeh_set_pe_freset - Check the required reset for the indicated device and its children - * @dn: parent device - * @freset: return value + * eeh_set_pe_freset - Check the required reset for the indicated device + * @data: EEH device + * @flag: return value * * Each device might have its preferred reset type: fundamental or * hot reset. The routine is used to collected the information for * the indicated device and its children so that the bunch of the * devices could be reset properly. */ -void eeh_set_pe_freset(struct device_node *dn, unsigned int *freset) +static void *eeh_set_dev_freset(void *data, void *flag) { struct pci_dev *dev; - dn = eeh_find_device_pe(dn); - - /* Back up one, since config addrs might be shared */ - if (!pcibios_find_pci_bus(dn) && of_node_to_eeh_dev(dn->parent)) - dn = dn->parent; + unsigned int *freset = (unsigned int *)flag; + struct eeh_dev *edev = (struct eeh_dev *)data; - dev = of_node_to_eeh_dev(dn)->pdev; + dev = eeh_dev_to_pci_dev(edev); if (dev) *freset |= dev->needs_freset; - __eeh_set_pe_freset(dn, freset); + return NULL; } /** * eeh_reset_pe_once - Assert the pci #RST line for 1/4 second - * @edev: pci device node to be reset. + * @pe: EEH PE * * Assert the PCI #RST line for 1/4 second. */ -static void eeh_reset_pe_once(struct eeh_dev *edev) +static void eeh_reset_pe_once(struct eeh_pe *pe) { unsigned int freset = 0; - struct device_node *dn = eeh_dev_to_of_node(edev); /* Determine type of EEH reset required for * Partitionable Endpoint, a hot-reset (1) @@ -658,12 +526,12 @@ static void eeh_reset_pe_once(struct eeh_dev *edev) * A fundamental reset required by any device under * Partitionable Endpoint trumps hot-reset. */ - eeh_set_pe_freset(dn, &freset); + eeh_pe_dev_traverse(pe, eeh_set_dev_freset, &freset); if (freset) - eeh_ops->reset(dn, EEH_RESET_FUNDAMENTAL); + eeh_ops->reset(pe, EEH_RESET_FUNDAMENTAL); else - eeh_ops->reset(dn, EEH_RESET_HOT); + eeh_ops->reset(pe, EEH_RESET_HOT); /* The PCI bus requires that the reset be held high for at least * a 100 milliseconds. We wait a bit longer 'just in case'. @@ -675,9 +543,9 @@ static void eeh_reset_pe_once(struct eeh_dev *edev) * pci slot reset line is dropped. Make sure we don't miss * these, and clear the flag now. */ - eeh_clear_slot(dn, EEH_MODE_ISOLATED); + eeh_pe_state_clear(pe, EEH_PE_ISOLATED); - eeh_ops->reset(dn, EEH_RESET_DEACTIVATE); + eeh_ops->reset(pe, EEH_RESET_DEACTIVATE); /* After a PCI slot has been reset, the PCI Express spec requires * a 1.5 second idle time for the bus to stabilize, before starting @@ -689,116 +557,36 @@ static void eeh_reset_pe_once(struct eeh_dev *edev) /** * eeh_reset_pe - Reset the indicated PE - * @edev: PCI device associated EEH device + * @pe: EEH PE * * This routine should be called to reset indicated device, including * PE. A PE might include multiple PCI devices and sometimes PCI bridges * might be involved as well. */ -int eeh_reset_pe(struct eeh_dev *edev) +int eeh_reset_pe(struct eeh_pe *pe) { int i, rc; - struct device_node *dn = eeh_dev_to_of_node(edev); /* Take three shots at resetting the bus */ for (i=0; i<3; i++) { - eeh_reset_pe_once(edev); + eeh_reset_pe_once(pe); - rc = eeh_ops->wait_state(dn, PCI_BUS_RESET_WAIT_MSEC); + rc = eeh_ops->wait_state(pe, PCI_BUS_RESET_WAIT_MSEC); if (rc == (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE)) return 0; if (rc < 0) { - printk(KERN_ERR "EEH: unrecoverable slot failure %s\n", - dn->full_name); + pr_err("%s: Unrecoverable slot failure on PHB#%d-PE#%x", + __func__, pe->phb->global_number, pe->addr); return -1; } - printk(KERN_ERR "EEH: bus reset %d failed on slot %s, rc=%d\n", - i+1, dn->full_name, rc); + pr_err("EEH: bus reset %d failed on PHB#%d-PE#%x, rc=%d\n", + i+1, pe->phb->global_number, pe->addr, rc); } return -1; } -/** Save and restore of PCI BARs - * - * Although firmware will set up BARs during boot, it doesn't - * set up device BAR's after a device reset, although it will, - * if requested, set up bridge configuration. Thus, we need to - * configure the PCI devices ourselves. - */ - -/** - * eeh_restore_one_device_bars - Restore the Base Address Registers for one device - * @edev: PCI device associated EEH device - * - * Loads the PCI configuration space base address registers, - * the expansion ROM base address, the latency timer, and etc. - * from the saved values in the device node. - */ -static inline void eeh_restore_one_device_bars(struct eeh_dev *edev) -{ - int i; - u32 cmd; - struct device_node *dn = eeh_dev_to_of_node(edev); - - if (!edev->phb) - return; - - for (i=4; i<10; i++) { - eeh_ops->write_config(dn, i*4, 4, edev->config_space[i]); - } - - /* 12 == Expansion ROM Address */ - eeh_ops->write_config(dn, 12*4, 4, edev->config_space[12]); - -#define BYTE_SWAP(OFF) (8*((OFF)/4)+3-(OFF)) -#define SAVED_BYTE(OFF) (((u8 *)(edev->config_space))[BYTE_SWAP(OFF)]) - - eeh_ops->write_config(dn, PCI_CACHE_LINE_SIZE, 1, - SAVED_BYTE(PCI_CACHE_LINE_SIZE)); - - eeh_ops->write_config(dn, PCI_LATENCY_TIMER, 1, - SAVED_BYTE(PCI_LATENCY_TIMER)); - - /* max latency, min grant, interrupt pin and line */ - eeh_ops->write_config(dn, 15*4, 4, edev->config_space[15]); - - /* Restore PERR & SERR bits, some devices require it, - * don't touch the other command bits - */ - eeh_ops->read_config(dn, PCI_COMMAND, 4, &cmd); - if (edev->config_space[1] & PCI_COMMAND_PARITY) - cmd |= PCI_COMMAND_PARITY; - else - cmd &= ~PCI_COMMAND_PARITY; - if (edev->config_space[1] & PCI_COMMAND_SERR) - cmd |= PCI_COMMAND_SERR; - else - cmd &= ~PCI_COMMAND_SERR; - eeh_ops->write_config(dn, PCI_COMMAND, 4, cmd); -} - -/** - * eeh_restore_bars - Restore the PCI config space info - * @edev: EEH device - * - * This routine performs a recursive walk to the children - * of this device as well. - */ -void eeh_restore_bars(struct eeh_dev *edev) -{ - struct device_node *dn; - if (!edev) - return; - - if ((edev->mode & EEH_MODE_SUPPORTED) && !IS_BRIDGE(edev->class_code)) - eeh_restore_one_device_bars(edev); - - for_each_child_of_node(eeh_dev_to_of_node(edev), dn) - eeh_restore_bars(of_node_to_eeh_dev(dn)); -} - /** * eeh_save_bars - Save device bars * @edev: PCI device associated EEH device @@ -808,7 +596,7 @@ void eeh_restore_bars(struct eeh_dev *edev) * PCI devices are added individually; but, for the restore, * an entire slot is reset at a time. */ -static void eeh_save_bars(struct eeh_dev *edev) +void eeh_save_bars(struct eeh_dev *edev) { int i; struct device_node *dn; @@ -822,102 +610,6 @@ static void eeh_save_bars(struct eeh_dev *edev) } /** - * eeh_early_enable - Early enable EEH on the indicated device - * @dn: device node - * @data: BUID - * - * Enable EEH functionality on the specified PCI device. The function - * is expected to be called before real PCI probing is done. However, - * the PHBs have been initialized at this point. - */ -static void *eeh_early_enable(struct device_node *dn, void *data) -{ - int ret; - const u32 *class_code = of_get_property(dn, "class-code", NULL); - const u32 *vendor_id = of_get_property(dn, "vendor-id", NULL); - const u32 *device_id = of_get_property(dn, "device-id", NULL); - const u32 *regs; - int enable; - struct eeh_dev *edev = of_node_to_eeh_dev(dn); - - edev->class_code = 0; - edev->mode = 0; - edev->check_count = 0; - edev->freeze_count = 0; - edev->false_positives = 0; - - if (!of_device_is_available(dn)) - return NULL; - - /* Ignore bad nodes. */ - if (!class_code || !vendor_id || !device_id) - return NULL; - - /* There is nothing to check on PCI to ISA bridges */ - if (dn->type && !strcmp(dn->type, "isa")) { - edev->mode |= EEH_MODE_NOCHECK; - return NULL; - } - edev->class_code = *class_code; - - /* Ok... see if this device supports EEH. Some do, some don't, - * and the only way to find out is to check each and every one. - */ - regs = of_get_property(dn, "reg", NULL); - if (regs) { - /* First register entry is addr (00BBSS00) */ - /* Try to enable eeh */ - ret = eeh_ops->set_option(dn, EEH_OPT_ENABLE); - - enable = 0; - if (ret == 0) { - edev->config_addr = regs[0]; - - /* If the newer, better, ibm,get-config-addr-info is supported, - * then use that instead. - */ - edev->pe_config_addr = eeh_ops->get_pe_addr(dn); - - /* Some older systems (Power4) allow the - * ibm,set-eeh-option call to succeed even on nodes - * where EEH is not supported. Verify support - * explicitly. - */ - ret = eeh_ops->get_state(dn, NULL); - if (ret > 0 && ret != EEH_STATE_NOT_SUPPORT) - enable = 1; - } - - if (enable) { - eeh_subsystem_enabled = 1; - edev->mode |= EEH_MODE_SUPPORTED; - - pr_debug("EEH: %s: eeh enabled, config=%x pe_config=%x\n", - dn->full_name, edev->config_addr, - edev->pe_config_addr); - } else { - - /* This device doesn't support EEH, but it may have an - * EEH parent, in which case we mark it as supported. - */ - if (dn->parent && of_node_to_eeh_dev(dn->parent) && - (of_node_to_eeh_dev(dn->parent)->mode & EEH_MODE_SUPPORTED)) { - /* Parent supports EEH. */ - edev->mode |= EEH_MODE_SUPPORTED; - edev->config_addr = of_node_to_eeh_dev(dn->parent)->config_addr; - return NULL; - } - } - } else { - printk(KERN_WARNING "EEH: %s: unable to get reg property.\n", - dn->full_name); - } - - eeh_save_bars(edev); - return NULL; -} - -/** * eeh_ops_register - Register platform dependent EEH operations * @ops: platform dependent EEH operations * @@ -982,7 +674,7 @@ int __exit eeh_ops_unregister(const char *name) * Even if force-off is set, the EEH hardware is still enabled, so that * newer systems can boot. */ -void __init eeh_init(void) +static int __init eeh_init(void) { struct pci_controller *hose, *tmp; struct device_node *phb; @@ -992,27 +684,34 @@ void __init eeh_init(void) if (!eeh_ops) { pr_warning("%s: Platform EEH operation not found\n", __func__); - return; + return -EEXIST; } else if ((ret = eeh_ops->init())) { pr_warning("%s: Failed to call platform init function (%d)\n", __func__, ret); - return; + return ret; } raw_spin_lock_init(&confirm_error_lock); /* Enable EEH for all adapters */ - list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { - phb = hose->dn; - traverse_pci_devices(phb, eeh_early_enable, NULL); + if (eeh_probe_mode_devtree()) { + list_for_each_entry_safe(hose, tmp, + &hose_list, list_node) { + phb = hose->dn; + traverse_pci_devices(phb, eeh_ops->of_probe, NULL); + } } if (eeh_subsystem_enabled) - printk(KERN_INFO "EEH: PCI Enhanced I/O Error Handling Enabled\n"); + pr_info("EEH: PCI Enhanced I/O Error Handling Enabled\n"); else - printk(KERN_WARNING "EEH: No capable adapters found\n"); + pr_warning("EEH: No capable adapters found\n"); + + return ret; } +core_initcall_sync(eeh_init); + /** * eeh_add_device_early - Enable EEH for the indicated device_node * @dn: device node for which to set up EEH @@ -1029,7 +728,7 @@ static void eeh_add_device_early(struct device_node *dn) { struct pci_controller *phb; - if (!dn || !of_node_to_eeh_dev(dn)) + if (!of_node_to_eeh_dev(dn)) return; phb = of_node_to_eeh_dev(dn)->phb; @@ -1037,7 +736,8 @@ static void eeh_add_device_early(struct device_node *dn) if (NULL == phb || 0 == phb->buid) return; - eeh_early_enable(dn, NULL); + /* FIXME: hotplug support on POWERNV */ + eeh_ops->of_probe(dn, NULL); } /** @@ -1087,7 +787,7 @@ static void eeh_add_device_late(struct pci_dev *dev) edev->pdev = dev; dev->dev.archdata.edev = edev; - pci_addr_cache_insert_device(dev); + eeh_addr_cache_insert_dev(dev); eeh_sysfs_add_device(dev); } @@ -1117,6 +817,7 @@ EXPORT_SYMBOL_GPL(eeh_add_device_tree_late); /** * eeh_remove_device - Undo EEH setup for the indicated pci device * @dev: pci device to be removed + * @purge_pe: remove the PE or not * * This routine should be called when a device is removed from * a running system (e.g. by hotplug or dlpar). It unregisters @@ -1124,7 +825,7 @@ EXPORT_SYMBOL_GPL(eeh_add_device_tree_late); * this device will no longer be detected after this call; thus, * i/o errors affecting this slot may leave this device unusable. */ -static void eeh_remove_device(struct pci_dev *dev) +static void eeh_remove_device(struct pci_dev *dev, int purge_pe) { struct eeh_dev *edev; @@ -1143,28 +844,30 @@ static void eeh_remove_device(struct pci_dev *dev) dev->dev.archdata.edev = NULL; pci_dev_put(dev); - pci_addr_cache_remove_device(dev); + eeh_rmv_from_parent_pe(edev, purge_pe); + eeh_addr_cache_rmv_dev(dev); eeh_sysfs_remove_device(dev); } /** * eeh_remove_bus_device - Undo EEH setup for the indicated PCI device * @dev: PCI device + * @purge_pe: remove the corresponding PE or not * * This routine must be called when a device is removed from the * running system through hotplug or dlpar. The corresponding * PCI address cache will be removed. */ -void eeh_remove_bus_device(struct pci_dev *dev) +void eeh_remove_bus_device(struct pci_dev *dev, int purge_pe) { struct pci_bus *bus = dev->subordinate; struct pci_dev *child, *tmp; - eeh_remove_device(dev); + eeh_remove_device(dev, purge_pe); if (bus && dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { list_for_each_entry_safe(child, tmp, &bus->devices, bus_list) - eeh_remove_bus_device(child); + eeh_remove_bus_device(child, purge_pe); } } EXPORT_SYMBOL_GPL(eeh_remove_bus_device); diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c index e5ae1c6..5a4c879 100644 --- a/arch/powerpc/platforms/pseries/eeh_cache.c +++ b/arch/powerpc/platforms/pseries/eeh_cache.c @@ -50,6 +50,7 @@ struct pci_io_addr_range { struct rb_node rb_node; unsigned long addr_lo; unsigned long addr_hi; + struct eeh_dev *edev; struct pci_dev *pcidev; unsigned int flags; }; @@ -59,7 +60,7 @@ static struct pci_io_addr_cache { spinlock_t piar_lock; } pci_io_addr_cache_root; -static inline struct pci_dev *__pci_addr_cache_get_device(unsigned long addr) +static inline struct eeh_dev *__eeh_addr_cache_get_device(unsigned long addr) { struct rb_node *n = pci_io_addr_cache_root.rb_root.rb_node; @@ -74,7 +75,7 @@ static inline struct pci_dev *__pci_addr_cache_get_device(unsigned long addr) n = n->rb_right; } else { pci_dev_get(piar->pcidev); - return piar->pcidev; + return piar->edev; } } } @@ -83,7 +84,7 @@ static inline struct pci_dev *__pci_addr_cache_get_device(unsigned long addr) } /** - * pci_addr_cache_get_device - Get device, given only address + * eeh_addr_cache_get_dev - Get device, given only address * @addr: mmio (PIO) phys address or i/o port number * * Given an mmio phys address, or a port number, find a pci device @@ -92,15 +93,15 @@ static inline struct pci_dev *__pci_addr_cache_get_device(unsigned long addr) * from zero (that is, they do *not* have pci_io_addr added in). * It is safe to call this function within an interrupt. */ -struct pci_dev *pci_addr_cache_get_device(unsigned long addr) +struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr) { - struct pci_dev *dev; + struct eeh_dev *edev; unsigned long flags; spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags); - dev = __pci_addr_cache_get_device(addr); + edev = __eeh_addr_cache_get_device(addr); spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags); - return dev; + return edev; } #ifdef DEBUG @@ -108,7 +109,7 @@ struct pci_dev *pci_addr_cache_get_device(unsigned long addr) * Handy-dandy debug print routine, does nothing more * than print out the contents of our addr cache. */ -static void pci_addr_cache_print(struct pci_io_addr_cache *cache) +static void eeh_addr_cache_print(struct pci_io_addr_cache *cache) { struct rb_node *n; int cnt = 0; @@ -117,7 +118,7 @@ static void pci_addr_cache_print(struct pci_io_addr_cache *cache) while (n) { struct pci_io_addr_range *piar; piar = rb_entry(n, struct pci_io_addr_range, rb_node); - printk(KERN_DEBUG "PCI: %s addr range %d [%lx-%lx]: %s\n", + pr_debug("PCI: %s addr range %d [%lx-%lx]: %s\n", (piar->flags & IORESOURCE_IO) ? "i/o" : "mem", cnt, piar->addr_lo, piar->addr_hi, pci_name(piar->pcidev)); cnt++; @@ -128,7 +129,7 @@ static void pci_addr_cache_print(struct pci_io_addr_cache *cache) /* Insert address range into the rb tree. */ static struct pci_io_addr_range * -pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo, +eeh_addr_cache_insert(struct pci_dev *dev, unsigned long alo, unsigned long ahi, unsigned int flags) { struct rb_node **p = &pci_io_addr_cache_root.rb_root.rb_node; @@ -146,23 +147,24 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo, } else { if (dev != piar->pcidev || alo != piar->addr_lo || ahi != piar->addr_hi) { - printk(KERN_WARNING "PIAR: overlapping address range\n"); + pr_warning("PIAR: overlapping address range\n"); } return piar; } } - piar = kmalloc(sizeof(struct pci_io_addr_range), GFP_ATOMIC); + piar = kzalloc(sizeof(struct pci_io_addr_range), GFP_ATOMIC); if (!piar) return NULL; pci_dev_get(dev); piar->addr_lo = alo; piar->addr_hi = ahi; + piar->edev = pci_dev_to_eeh_dev(dev); piar->pcidev = dev; piar->flags = flags; #ifdef DEBUG - printk(KERN_DEBUG "PIAR: insert range=[%lx:%lx] dev=%s\n", + pr_debug("PIAR: insert range=[%lx:%lx] dev=%s\n", alo, ahi, pci_name(dev)); #endif @@ -172,7 +174,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo, return piar; } -static void __pci_addr_cache_insert_device(struct pci_dev *dev) +static void __eeh_addr_cache_insert_dev(struct pci_dev *dev) { struct device_node *dn; struct eeh_dev *edev; @@ -180,7 +182,7 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev) dn = pci_device_to_OF_node(dev); if (!dn) { - printk(KERN_WARNING "PCI: no pci dn found for dev=%s\n", pci_name(dev)); + pr_warning("PCI: no pci dn found for dev=%s\n", pci_name(dev)); return; } @@ -192,8 +194,7 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev) } /* Skip any devices for which EEH is not enabled. */ - if (!(edev->mode & EEH_MODE_SUPPORTED) || - edev->mode & EEH_MODE_NOCHECK) { + if (!edev->pe) { #ifdef DEBUG pr_info("PCI: skip building address cache for=%s - %s\n", pci_name(dev), dn->full_name); @@ -212,19 +213,19 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev) continue; if (start == 0 || ~start == 0 || end == 0 || ~end == 0) continue; - pci_addr_cache_insert(dev, start, end, flags); + eeh_addr_cache_insert(dev, start, end, flags); } } /** - * pci_addr_cache_insert_device - Add a device to the address cache + * eeh_addr_cache_insert_dev - Add a device to the address cache * @dev: PCI device whose I/O addresses we are interested in. * * In order to support the fast lookup of devices based on addresses, * we maintain a cache of devices that can be quickly searched. * This routine adds a device to that cache. */ -void pci_addr_cache_insert_device(struct pci_dev *dev) +void eeh_addr_cache_insert_dev(struct pci_dev *dev) { unsigned long flags; @@ -233,11 +234,11 @@ void pci_addr_cache_insert_device(struct pci_dev *dev) return; spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags); - __pci_addr_cache_insert_device(dev); + __eeh_addr_cache_insert_dev(dev); spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags); } -static inline void __pci_addr_cache_remove_device(struct pci_dev *dev) +static inline void __eeh_addr_cache_rmv_dev(struct pci_dev *dev) { struct rb_node *n; @@ -258,7 +259,7 @@ restart: } /** - * pci_addr_cache_remove_device - remove pci device from addr cache + * eeh_addr_cache_rmv_dev - remove pci device from addr cache * @dev: device to remove * * Remove a device from the addr-cache tree. @@ -266,17 +267,17 @@ restart: * the tree multiple times (once per resource). * But so what; device removal doesn't need to be that fast. */ -void pci_addr_cache_remove_device(struct pci_dev *dev) +void eeh_addr_cache_rmv_dev(struct pci_dev *dev) { unsigned long flags; spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags); - __pci_addr_cache_remove_device(dev); + __eeh_addr_cache_rmv_dev(dev); spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags); } /** - * pci_addr_cache_build - Build a cache of I/O addresses + * eeh_addr_cache_build - Build a cache of I/O addresses * * Build a cache of pci i/o addresses. This cache will be used to * find the pci device that corresponds to a given address. @@ -284,7 +285,7 @@ void pci_addr_cache_remove_device(struct pci_dev *dev) * Must be run late in boot process, after the pci controllers * have been scanned for devices (after all device resources are known). */ -void __init pci_addr_cache_build(void) +void __init eeh_addr_cache_build(void) { struct device_node *dn; struct eeh_dev *edev; @@ -293,7 +294,7 @@ void __init pci_addr_cache_build(void) spin_lock_init(&pci_io_addr_cache_root.piar_lock); for_each_pci_dev(dev) { - pci_addr_cache_insert_device(dev); + eeh_addr_cache_insert_dev(dev); dn = pci_device_to_OF_node(dev); if (!dn) @@ -312,7 +313,7 @@ void __init pci_addr_cache_build(void) #ifdef DEBUG /* Verify tree built up above, echo back the list of addrs. */ - pci_addr_cache_print(&pci_io_addr_cache_root); + eeh_addr_cache_print(&pci_io_addr_cache_root); #endif } diff --git a/arch/powerpc/platforms/pseries/eeh_dev.c b/arch/powerpc/platforms/pseries/eeh_dev.c index c4507d0..6644234 100644 --- a/arch/powerpc/platforms/pseries/eeh_dev.c +++ b/arch/powerpc/platforms/pseries/eeh_dev.c @@ -55,7 +55,7 @@ void * __devinit eeh_dev_init(struct device_node *dn, void *data) struct eeh_dev *edev; /* Allocate EEH device */ - edev = zalloc_maybe_bootmem(sizeof(*edev), GFP_KERNEL); + edev = kzalloc(sizeof(*edev), GFP_KERNEL); if (!edev) { pr_warning("%s: out of memory\n", __func__); return NULL; @@ -65,6 +65,7 @@ void * __devinit eeh_dev_init(struct device_node *dn, void *data) PCI_DN(dn)->edev = edev; edev->dn = dn; edev->phb = phb; + INIT_LIST_HEAD(&edev->list); return NULL; } @@ -80,6 +81,9 @@ void __devinit eeh_dev_phb_init_dynamic(struct pci_controller *phb) { struct device_node *dn = phb->dn; + /* EEH PE for PHB */ + eeh_phb_pe_create(phb); + /* EEH device for PHB */ eeh_dev_init(dn, phb); @@ -93,10 +97,16 @@ void __devinit eeh_dev_phb_init_dynamic(struct pci_controller *phb) * Scan all the existing PHBs and create EEH devices for their OF * nodes and their children OF nodes */ -void __init eeh_dev_phb_init(void) +static int __init eeh_dev_phb_init(void) { struct pci_controller *phb, *tmp; list_for_each_entry_safe(phb, tmp, &hose_list, list_node) eeh_dev_phb_init_dynamic(phb); + + pr_info("EEH: devices created\n"); + + return 0; } + +core_initcall(eeh_dev_phb_init); diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c index baf92cd..a3fefb6 100644 --- a/arch/powerpc/platforms/pseries/eeh_driver.c +++ b/arch/powerpc/platforms/pseries/eeh_driver.c @@ -25,6 +25,7 @@ #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/module.h> #include <linux/pci.h> #include <asm/eeh.h> #include <asm/eeh_event.h> @@ -47,6 +48,41 @@ static inline const char *eeh_pcid_name(struct pci_dev *pdev) return ""; } +/** + * eeh_pcid_get - Get the PCI device driver + * @pdev: PCI device + * + * The function is used to retrieve the PCI device driver for + * the indicated PCI device. Besides, we will increase the reference + * of the PCI device driver to prevent that being unloaded on + * the fly. Otherwise, kernel crash would be seen. + */ +static inline struct pci_driver *eeh_pcid_get(struct pci_dev *pdev) +{ + if (!pdev || !pdev->driver) + return NULL; + + if (!try_module_get(pdev->driver->driver.owner)) + return NULL; + + return pdev->driver; +} + +/** + * eeh_pcid_put - Dereference on the PCI device driver + * @pdev: PCI device + * + * The function is called to do dereference on the PCI device + * driver of the indicated PCI device. + */ +static inline void eeh_pcid_put(struct pci_dev *pdev) +{ + if (!pdev || !pdev->driver) + return; + + module_put(pdev->driver->driver.owner); +} + #if 0 static void print_device_node_tree(struct pci_dn *pdn, int dent) { @@ -93,7 +129,7 @@ static void eeh_disable_irq(struct pci_dev *dev) if (!irq_has_action(dev->irq)) return; - edev->mode |= EEH_MODE_IRQ_DISABLED; + edev->mode |= EEH_DEV_IRQ_DISABLED; disable_irq_nosync(dev->irq); } @@ -108,36 +144,44 @@ static void eeh_enable_irq(struct pci_dev *dev) { struct eeh_dev *edev = pci_dev_to_eeh_dev(dev); - if ((edev->mode) & EEH_MODE_IRQ_DISABLED) { - edev->mode &= ~EEH_MODE_IRQ_DISABLED; + if ((edev->mode) & EEH_DEV_IRQ_DISABLED) { + edev->mode &= ~EEH_DEV_IRQ_DISABLED; enable_irq(dev->irq); } } /** * eeh_report_error - Report pci error to each device driver - * @dev: PCI device + * @data: eeh device * @userdata: return value * * Report an EEH error to each device driver, collect up and * merge the device driver responses. Cumulative response * passed back in "userdata". */ -static int eeh_report_error(struct pci_dev *dev, void *userdata) +static void *eeh_report_error(void *data, void *userdata) { + struct eeh_dev *edev = (struct eeh_dev *)data; + struct pci_dev *dev = eeh_dev_to_pci_dev(edev); enum pci_ers_result rc, *res = userdata; - struct pci_driver *driver = dev->driver; + struct pci_driver *driver; + /* We might not have the associated PCI device, + * then we should continue for next one. + */ + if (!dev) return NULL; dev->error_state = pci_channel_io_frozen; - if (!driver) - return 0; + driver = eeh_pcid_get(dev); + if (!driver) return NULL; eeh_disable_irq(dev); if (!driver->err_handler || - !driver->err_handler->error_detected) - return 0; + !driver->err_handler->error_detected) { + eeh_pcid_put(dev); + return NULL; + } rc = driver->err_handler->error_detected(dev, pci_channel_io_frozen); @@ -145,27 +189,34 @@ static int eeh_report_error(struct pci_dev *dev, void *userdata) if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc; if (*res == PCI_ERS_RESULT_NONE) *res = rc; - return 0; + eeh_pcid_put(dev); + return NULL; } /** * eeh_report_mmio_enabled - Tell drivers that MMIO has been enabled - * @dev: PCI device + * @data: eeh device * @userdata: return value * * Tells each device driver that IO ports, MMIO and config space I/O * are now enabled. Collects up and merges the device driver responses. * Cumulative response passed back in "userdata". */ -static int eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata) +static void *eeh_report_mmio_enabled(void *data, void *userdata) { + struct eeh_dev *edev = (struct eeh_dev *)data; + struct pci_dev *dev = eeh_dev_to_pci_dev(edev); enum pci_ers_result rc, *res = userdata; - struct pci_driver *driver = dev->driver; + struct pci_driver *driver; - if (!driver || - !driver->err_handler || - !driver->err_handler->mmio_enabled) - return 0; + driver = eeh_pcid_get(dev); + if (!driver) return NULL; + + if (!driver->err_handler || + !driver->err_handler->mmio_enabled) { + eeh_pcid_put(dev); + return NULL; + } rc = driver->err_handler->mmio_enabled(dev); @@ -173,12 +224,13 @@ static int eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata) if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc; if (*res == PCI_ERS_RESULT_NONE) *res = rc; - return 0; + eeh_pcid_put(dev); + return NULL; } /** * eeh_report_reset - Tell device that slot has been reset - * @dev: PCI device + * @data: eeh device * @userdata: return value * * This routine must be called while EEH tries to reset particular @@ -186,21 +238,26 @@ static int eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata) * some actions, usually to save data the driver needs so that the * driver can work again while the device is recovered. */ -static int eeh_report_reset(struct pci_dev *dev, void *userdata) +static void *eeh_report_reset(void *data, void *userdata) { + struct eeh_dev *edev = (struct eeh_dev *)data; + struct pci_dev *dev = eeh_dev_to_pci_dev(edev); enum pci_ers_result rc, *res = userdata; - struct pci_driver *driver = dev->driver; - - if (!driver) - return 0; + struct pci_driver *driver; + if (!dev) return NULL; dev->error_state = pci_channel_io_normal; + driver = eeh_pcid_get(dev); + if (!driver) return NULL; + eeh_enable_irq(dev); if (!driver->err_handler || - !driver->err_handler->slot_reset) - return 0; + !driver->err_handler->slot_reset) { + eeh_pcid_put(dev); + return NULL; + } rc = driver->err_handler->slot_reset(dev); if ((*res == PCI_ERS_RESULT_NONE) || @@ -208,109 +265,115 @@ static int eeh_report_reset(struct pci_dev *dev, void *userdata) if (*res == PCI_ERS_RESULT_DISCONNECT && rc == PCI_ERS_RESULT_NEED_RESET) *res = rc; - return 0; + eeh_pcid_put(dev); + return NULL; } /** * eeh_report_resume - Tell device to resume normal operations - * @dev: PCI device + * @data: eeh device * @userdata: return value * * This routine must be called to notify the device driver that it * could resume so that the device driver can do some initialization * to make the recovered device work again. */ -static int eeh_report_resume(struct pci_dev *dev, void *userdata) +static void *eeh_report_resume(void *data, void *userdata) { - struct pci_driver *driver = dev->driver; + struct eeh_dev *edev = (struct eeh_dev *)data; + struct pci_dev *dev = eeh_dev_to_pci_dev(edev); + struct pci_driver *driver; + if (!dev) return NULL; dev->error_state = pci_channel_io_normal; - if (!driver) - return 0; + driver = eeh_pcid_get(dev); + if (!driver) return NULL; eeh_enable_irq(dev); if (!driver->err_handler || - !driver->err_handler->resume) - return 0; + !driver->err_handler->resume) { + eeh_pcid_put(dev); + return NULL; + } driver->err_handler->resume(dev); - return 0; + eeh_pcid_put(dev); + return NULL; } /** * eeh_report_failure - Tell device driver that device is dead. - * @dev: PCI device + * @data: eeh device * @userdata: return value * * This informs the device driver that the device is permanently * dead, and that no further recovery attempts will be made on it. */ -static int eeh_report_failure(struct pci_dev *dev, void *userdata) +static void *eeh_report_failure(void *data, void *userdata) { - struct pci_driver *driver = dev->driver; + struct eeh_dev *edev = (struct eeh_dev *)data; + struct pci_dev *dev = eeh_dev_to_pci_dev(edev); + struct pci_driver *driver; + if (!dev) return NULL; dev->error_state = pci_channel_io_perm_failure; - if (!driver) - return 0; + driver = eeh_pcid_get(dev); + if (!driver) return NULL; eeh_disable_irq(dev); if (!driver->err_handler || - !driver->err_handler->error_detected) - return 0; + !driver->err_handler->error_detected) { + eeh_pcid_put(dev); + return NULL; + } driver->err_handler->error_detected(dev, pci_channel_io_perm_failure); - return 0; + eeh_pcid_put(dev); + return NULL; } /** * eeh_reset_device - Perform actual reset of a pci slot - * @edev: PE associated EEH device + * @pe: EEH PE * @bus: PCI bus corresponding to the isolcated slot * * This routine must be called to do reset on the indicated PE. * During the reset, udev might be invoked because those affected * PCI devices will be removed and then added. */ -static int eeh_reset_device(struct eeh_dev *edev, struct pci_bus *bus) +static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus) { - struct device_node *dn; int cnt, rc; /* pcibios will clear the counter; save the value */ - cnt = edev->freeze_count; + cnt = pe->freeze_count; + /* + * We don't remove the corresponding PE instances because + * we need the information afterwords. The attached EEH + * devices are expected to be attached soon when calling + * into pcibios_add_pci_devices(). + */ if (bus) - pcibios_remove_pci_devices(bus); + __pcibios_remove_pci_devices(bus, 0); /* Reset the pci controller. (Asserts RST#; resets config space). * Reconfigure bridges and devices. Don't try to bring the system * up if the reset failed for some reason. */ - rc = eeh_reset_pe(edev); + rc = eeh_reset_pe(pe); if (rc) return rc; - /* Walk over all functions on this device. */ - dn = eeh_dev_to_of_node(edev); - if (!pcibios_find_pci_bus(dn) && of_node_to_eeh_dev(dn->parent)) - dn = dn->parent->child; - - while (dn) { - struct eeh_dev *pedev = of_node_to_eeh_dev(dn); - - /* On Power4, always true because eeh_pe_config_addr=0 */ - if (edev->pe_config_addr == pedev->pe_config_addr) { - eeh_ops->configure_bridge(dn); - eeh_restore_bars(pedev); - } - dn = dn->sibling; - } + /* Restore PE */ + eeh_ops->configure_bridge(pe); + eeh_pe_restore_bars(pe); /* Give the system 5 seconds to finish running the user-space * hotplug shutdown scripts, e.g. ifdown for ethernet. Yes, @@ -322,7 +385,7 @@ static int eeh_reset_device(struct eeh_dev *edev, struct pci_bus *bus) ssleep(5); pcibios_add_pci_devices(bus); } - edev->freeze_count = cnt; + pe->freeze_count = cnt; return 0; } @@ -334,7 +397,7 @@ static int eeh_reset_device(struct eeh_dev *edev, struct pci_bus *bus) /** * eeh_handle_event - Reset a PCI device after hard lockup. - * @event: EEH event + * @pe: EEH PE * * While PHB detects address or data parity errors on particular PCI * slot, the associated PE will be frozen. Besides, DMA's occurring @@ -349,69 +412,24 @@ static int eeh_reset_device(struct eeh_dev *edev, struct pci_bus *bus) * drivers (which cause a second set of hotplug events to go out to * userspace). */ -struct eeh_dev *handle_eeh_events(struct eeh_event *event) +void eeh_handle_event(struct eeh_pe *pe) { - struct device_node *frozen_dn; - struct eeh_dev *frozen_edev; struct pci_bus *frozen_bus; int rc = 0; enum pci_ers_result result = PCI_ERS_RESULT_NONE; - const char *location, *pci_str, *drv_str, *bus_pci_str, *bus_drv_str; - - frozen_dn = eeh_find_device_pe(eeh_dev_to_of_node(event->edev)); - if (!frozen_dn) { - location = of_get_property(eeh_dev_to_of_node(event->edev), "ibm,loc-code", NULL); - location = location ? location : "unknown"; - printk(KERN_ERR "EEH: Error: Cannot find partition endpoint " - "for location=%s pci addr=%s\n", - location, eeh_pci_name(eeh_dev_to_pci_dev(event->edev))); - return NULL; - } - - frozen_bus = pcibios_find_pci_bus(frozen_dn); - location = of_get_property(frozen_dn, "ibm,loc-code", NULL); - location = location ? location : "unknown"; - - /* There are two different styles for coming up with the PE. - * In the old style, it was the highest EEH-capable device - * which was always an EADS pci bridge. In the new style, - * there might not be any EADS bridges, and even when there are, - * the firmware marks them as "EEH incapable". So another - * two-step is needed to find the pci bus.. - */ - if (!frozen_bus) - frozen_bus = pcibios_find_pci_bus(frozen_dn->parent); + frozen_bus = eeh_pe_bus_get(pe); if (!frozen_bus) { - printk(KERN_ERR "EEH: Cannot find PCI bus " - "for location=%s dn=%s\n", - location, frozen_dn->full_name); - return NULL; + pr_err("%s: Cannot find PCI bus for PHB#%d-PE#%x\n", + __func__, pe->phb->global_number, pe->addr); + return; } - frozen_edev = of_node_to_eeh_dev(frozen_dn); - frozen_edev->freeze_count++; - pci_str = eeh_pci_name(eeh_dev_to_pci_dev(event->edev)); - drv_str = eeh_pcid_name(eeh_dev_to_pci_dev(event->edev)); - - if (frozen_edev->freeze_count > EEH_MAX_ALLOWED_FREEZES) + pe->freeze_count++; + if (pe->freeze_count > EEH_MAX_ALLOWED_FREEZES) goto excess_failures; - - printk(KERN_WARNING - "EEH: This PCI device has failed %d times in the last hour:\n", - frozen_edev->freeze_count); - - if (frozen_edev->pdev) { - bus_pci_str = pci_name(frozen_edev->pdev); - bus_drv_str = eeh_pcid_name(frozen_edev->pdev); - printk(KERN_WARNING - "EEH: Bus location=%s driver=%s pci addr=%s\n", - location, bus_drv_str, bus_pci_str); - } - - printk(KERN_WARNING - "EEH: Device location=%s driver=%s pci addr=%s\n", - location, drv_str, pci_str); + pr_warning("EEH: This PCI device has failed %d times in the last hour\n", + pe->freeze_count); /* Walk the various device drivers attached to this slot through * a reset sequence, giving each an opportunity to do what it needs @@ -419,12 +437,12 @@ struct eeh_dev *handle_eeh_events(struct eeh_event *event) * status ... if any child can't handle the reset, then the entire * slot is dlpar removed and added. */ - pci_walk_bus(frozen_bus, eeh_report_error, &result); + eeh_pe_dev_traverse(pe, eeh_report_error, &result); /* Get the current PCI slot state. This can take a long time, * sometimes over 3 seconds for certain systems. */ - rc = eeh_ops->wait_state(eeh_dev_to_of_node(frozen_edev), MAX_WAIT_FOR_RECOVERY*1000); + rc = eeh_ops->wait_state(pe, MAX_WAIT_FOR_RECOVERY*1000); if (rc < 0 || rc == EEH_STATE_NOT_SUPPORT) { printk(KERN_WARNING "EEH: Permanent failure\n"); goto hard_fail; @@ -434,14 +452,14 @@ struct eeh_dev *handle_eeh_events(struct eeh_event *event) * don't post the error log until after all dev drivers * have been informed. */ - eeh_slot_error_detail(frozen_edev, EEH_LOG_TEMP); + eeh_slot_error_detail(pe, EEH_LOG_TEMP); /* If all device drivers were EEH-unaware, then shut * down all of the device drivers, and hope they * go down willingly, without panicing the system. */ if (result == PCI_ERS_RESULT_NONE) { - rc = eeh_reset_device(frozen_edev, frozen_bus); + rc = eeh_reset_device(pe, frozen_bus); if (rc) { printk(KERN_WARNING "EEH: Unable to reset, rc=%d\n", rc); goto hard_fail; @@ -450,7 +468,7 @@ struct eeh_dev *handle_eeh_events(struct eeh_event *event) /* If all devices reported they can proceed, then re-enable MMIO */ if (result == PCI_ERS_RESULT_CAN_RECOVER) { - rc = eeh_pci_enable(frozen_edev, EEH_OPT_THAW_MMIO); + rc = eeh_pci_enable(pe, EEH_OPT_THAW_MMIO); if (rc < 0) goto hard_fail; @@ -458,13 +476,13 @@ struct eeh_dev *handle_eeh_events(struct eeh_event *event) result = PCI_ERS_RESULT_NEED_RESET; } else { result = PCI_ERS_RESULT_NONE; - pci_walk_bus(frozen_bus, eeh_report_mmio_enabled, &result); + eeh_pe_dev_traverse(pe, eeh_report_mmio_enabled, &result); } } /* If all devices reported they can proceed, then re-enable DMA */ if (result == PCI_ERS_RESULT_CAN_RECOVER) { - rc = eeh_pci_enable(frozen_edev, EEH_OPT_THAW_DMA); + rc = eeh_pci_enable(pe, EEH_OPT_THAW_DMA); if (rc < 0) goto hard_fail; @@ -482,13 +500,13 @@ struct eeh_dev *handle_eeh_events(struct eeh_event *event) /* If any device called out for a reset, then reset the slot */ if (result == PCI_ERS_RESULT_NEED_RESET) { - rc = eeh_reset_device(frozen_edev, NULL); + rc = eeh_reset_device(pe, NULL); if (rc) { printk(KERN_WARNING "EEH: Cannot reset, rc=%d\n", rc); goto hard_fail; } result = PCI_ERS_RESULT_NONE; - pci_walk_bus(frozen_bus, eeh_report_reset, &result); + eeh_pe_dev_traverse(pe, eeh_report_reset, &result); } /* All devices should claim they have recovered by now. */ @@ -499,9 +517,9 @@ struct eeh_dev *handle_eeh_events(struct eeh_event *event) } /* Tell all device drivers that they can resume operations */ - pci_walk_bus(frozen_bus, eeh_report_resume, NULL); + eeh_pe_dev_traverse(pe, eeh_report_resume, NULL); - return frozen_edev; + return; excess_failures: /* @@ -509,30 +527,26 @@ excess_failures: * are due to poorly seated PCI cards. Only 10% or so are * due to actual, failed cards. */ - printk(KERN_ERR - "EEH: PCI device at location=%s driver=%s pci addr=%s\n" - "has failed %d times in the last hour " - "and has been permanently disabled.\n" - "Please try reseating this device or replacing it.\n", - location, drv_str, pci_str, frozen_edev->freeze_count); + pr_err("EEH: PHB#%d-PE#%x has failed %d times in the\n" + "last hour and has been permanently disabled.\n" + "Please try reseating or replacing it.\n", + pe->phb->global_number, pe->addr, + pe->freeze_count); goto perm_error; hard_fail: - printk(KERN_ERR - "EEH: Unable to recover from failure of PCI device " - "at location=%s driver=%s pci addr=%s\n" - "Please try reseating this device or replacing it.\n", - location, drv_str, pci_str); + pr_err("EEH: Unable to recover from failure from PHB#%d-PE#%x.\n" + "Please try reseating or replacing it\n", + pe->phb->global_number, pe->addr); perm_error: - eeh_slot_error_detail(frozen_edev, EEH_LOG_PERM); + eeh_slot_error_detail(pe, EEH_LOG_PERM); /* Notify all devices that they're about to go down. */ - pci_walk_bus(frozen_bus, eeh_report_failure, NULL); + eeh_pe_dev_traverse(pe, eeh_report_failure, NULL); /* Shut down the device drivers for good. */ - pcibios_remove_pci_devices(frozen_bus); - - return NULL; + if (frozen_bus) + pcibios_remove_pci_devices(frozen_bus); } diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c index fb50631..51faaac 100644 --- a/arch/powerpc/platforms/pseries/eeh_event.c +++ b/arch/powerpc/platforms/pseries/eeh_event.c @@ -57,7 +57,7 @@ static int eeh_event_handler(void * dummy) { unsigned long flags; struct eeh_event *event; - struct eeh_dev *edev; + struct eeh_pe *pe; set_task_comm(current, "eehd"); @@ -76,28 +76,23 @@ static int eeh_event_handler(void * dummy) /* Serialize processing of EEH events */ mutex_lock(&eeh_event_mutex); - edev = event->edev; - eeh_mark_slot(eeh_dev_to_of_node(edev), EEH_MODE_RECOVERING); - - printk(KERN_INFO "EEH: Detected PCI bus error on device %s\n", - eeh_pci_name(edev->pdev)); + pe = event->pe; + eeh_pe_state_mark(pe, EEH_PE_RECOVERING); + pr_info("EEH: Detected PCI bus error on PHB#%d-PE#%x\n", + pe->phb->global_number, pe->addr); set_current_state(TASK_INTERRUPTIBLE); /* Don't add to load average */ - edev = handle_eeh_events(event); - - if (edev) { - eeh_clear_slot(eeh_dev_to_of_node(edev), EEH_MODE_RECOVERING); - pci_dev_put(edev->pdev); - } + eeh_handle_event(pe); + eeh_pe_state_clear(pe, EEH_PE_RECOVERING); kfree(event); mutex_unlock(&eeh_event_mutex); /* If there are no new errors after an hour, clear the counter. */ - if (edev && edev->freeze_count>0) { + if (pe && pe->freeze_count > 0) { msleep_interruptible(3600*1000); - if (edev->freeze_count>0) - edev->freeze_count--; + if (pe->freeze_count > 0) + pe->freeze_count--; } @@ -119,36 +114,23 @@ static void eeh_thread_launcher(struct work_struct *dummy) /** * eeh_send_failure_event - Generate a PCI error event - * @edev: EEH device + * @pe: EEH PE * * This routine can be called within an interrupt context; * the actual event will be delivered in a normal context * (from a workqueue). */ -int eeh_send_failure_event(struct eeh_dev *edev) +int eeh_send_failure_event(struct eeh_pe *pe) { unsigned long flags; struct eeh_event *event; - struct device_node *dn = eeh_dev_to_of_node(edev); - const char *location; - - if (!mem_init_done) { - printk(KERN_ERR "EEH: event during early boot not handled\n"); - location = of_get_property(dn, "ibm,loc-code", NULL); - printk(KERN_ERR "EEH: device node = %s\n", dn->full_name); - printk(KERN_ERR "EEH: PCI location = %s\n", location); - return 1; - } - event = kmalloc(sizeof(*event), GFP_ATOMIC); - if (event == NULL) { - printk(KERN_ERR "EEH: out of memory, event not handled\n"); - return 1; - } - - if (edev->pdev) - pci_dev_get(edev->pdev); - event->edev = edev; + event = kzalloc(sizeof(*event), GFP_ATOMIC); + if (!event) { + pr_err("EEH: out of memory, event not handled\n"); + return -ENOMEM; + } + event->pe = pe; /* We may or may not be called in an interrupt context */ spin_lock_irqsave(&eeh_eventlist_lock, flags); diff --git a/arch/powerpc/platforms/pseries/eeh_pe.c b/arch/powerpc/platforms/pseries/eeh_pe.c new file mode 100644 index 0000000..797cd18 --- /dev/null +++ b/arch/powerpc/platforms/pseries/eeh_pe.c @@ -0,0 +1,652 @@ +/* + * The file intends to implement PE based on the information from + * platforms. Basically, there have 3 types of PEs: PHB/Bus/Device. + * All the PEs should be organized as hierarchy tree. The first level + * of the tree will be associated to existing PHBs since the particular + * PE is only meaningful in one PHB domain. + * + * Copyright Benjamin Herrenschmidt & Gavin Shan, IBM Corporation 2012. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/export.h> +#include <linux/gfp.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/string.h> + +#include <asm/pci-bridge.h> +#include <asm/ppc-pci.h> + +static LIST_HEAD(eeh_phb_pe); + +/** + * eeh_pe_alloc - Allocate PE + * @phb: PCI controller + * @type: PE type + * + * Allocate PE instance dynamically. + */ +static struct eeh_pe *eeh_pe_alloc(struct pci_controller *phb, int type) +{ + struct eeh_pe *pe; + + /* Allocate PHB PE */ + pe = kzalloc(sizeof(struct eeh_pe), GFP_KERNEL); + if (!pe) return NULL; + + /* Initialize PHB PE */ + pe->type = type; + pe->phb = phb; + INIT_LIST_HEAD(&pe->child_list); + INIT_LIST_HEAD(&pe->child); + INIT_LIST_HEAD(&pe->edevs); + + return pe; +} + +/** + * eeh_phb_pe_create - Create PHB PE + * @phb: PCI controller + * + * The function should be called while the PHB is detected during + * system boot or PCI hotplug in order to create PHB PE. + */ +int __devinit eeh_phb_pe_create(struct pci_controller *phb) +{ + struct eeh_pe *pe; + + /* Allocate PHB PE */ + pe = eeh_pe_alloc(phb, EEH_PE_PHB); + if (!pe) { + pr_err("%s: out of memory!\n", __func__); + return -ENOMEM; + } + + /* Put it into the list */ + eeh_lock(); + list_add_tail(&pe->child, &eeh_phb_pe); + eeh_unlock(); + + pr_debug("EEH: Add PE for PHB#%d\n", phb->global_number); + + return 0; +} + +/** + * eeh_phb_pe_get - Retrieve PHB PE based on the given PHB + * @phb: PCI controller + * + * The overall PEs form hierarchy tree. The first layer of the + * hierarchy tree is composed of PHB PEs. The function is used + * to retrieve the corresponding PHB PE according to the given PHB. + */ +static struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb) +{ + struct eeh_pe *pe; + + list_for_each_entry(pe, &eeh_phb_pe, child) { + /* + * Actually, we needn't check the type since + * the PE for PHB has been determined when that + * was created. + */ + if ((pe->type & EEH_PE_PHB) && pe->phb == phb) + return pe; + } + + return NULL; +} + +/** + * eeh_pe_next - Retrieve the next PE in the tree + * @pe: current PE + * @root: root PE + * + * The function is used to retrieve the next PE in the + * hierarchy PE tree. + */ +static struct eeh_pe *eeh_pe_next(struct eeh_pe *pe, + struct eeh_pe *root) +{ + struct list_head *next = pe->child_list.next; + + if (next == &pe->child_list) { + while (1) { + if (pe == root) + return NULL; + next = pe->child.next; + if (next != &pe->parent->child_list) + break; + pe = pe->parent; + } + } + + return list_entry(next, struct eeh_pe, child); +} + +/** + * eeh_pe_traverse - Traverse PEs in the specified PHB + * @root: root PE + * @fn: callback + * @flag: extra parameter to callback + * + * The function is used to traverse the specified PE and its + * child PEs. The traversing is to be terminated once the + * callback returns something other than NULL, or no more PEs + * to be traversed. + */ +static void *eeh_pe_traverse(struct eeh_pe *root, + eeh_traverse_func fn, void *flag) +{ + struct eeh_pe *pe; + void *ret; + + for (pe = root; pe; pe = eeh_pe_next(pe, root)) { + ret = fn(pe, flag); + if (ret) return ret; + } + + return NULL; +} + +/** + * eeh_pe_dev_traverse - Traverse the devices from the PE + * @root: EEH PE + * @fn: function callback + * @flag: extra parameter to callback + * + * The function is used to traverse the devices of the specified + * PE and its child PEs. + */ +void *eeh_pe_dev_traverse(struct eeh_pe *root, + eeh_traverse_func fn, void *flag) +{ + struct eeh_pe *pe; + struct eeh_dev *edev; + void *ret; + + if (!root) { + pr_warning("%s: Invalid PE %p\n", __func__, root); + return NULL; + } + + eeh_lock(); + + /* Traverse root PE */ + for (pe = root; pe; pe = eeh_pe_next(pe, root)) { + eeh_pe_for_each_dev(pe, edev) { + ret = fn(edev, flag); + if (ret) { + eeh_unlock(); + return ret; + } + } + } + + eeh_unlock(); + + return NULL; +} + +/** + * __eeh_pe_get - Check the PE address + * @data: EEH PE + * @flag: EEH device + * + * For one particular PE, it can be identified by PE address + * or tranditional BDF address. BDF address is composed of + * Bus/Device/Function number. The extra data referred by flag + * indicates which type of address should be used. + */ +static void *__eeh_pe_get(void *data, void *flag) +{ + struct eeh_pe *pe = (struct eeh_pe *)data; + struct eeh_dev *edev = (struct eeh_dev *)flag; + + /* Unexpected PHB PE */ + if (pe->type & EEH_PE_PHB) + return NULL; + + /* We prefer PE address */ + if (edev->pe_config_addr && + (edev->pe_config_addr == pe->addr)) + return pe; + + /* Try BDF address */ + if (edev->pe_config_addr && + (edev->config_addr == pe->config_addr)) + return pe; + + return NULL; +} + +/** + * eeh_pe_get - Search PE based on the given address + * @edev: EEH device + * + * Search the corresponding PE based on the specified address which + * is included in the eeh device. The function is used to check if + * the associated PE has been created against the PE address. It's + * notable that the PE address has 2 format: traditional PE address + * which is composed of PCI bus/device/function number, or unified + * PE address. + */ +static struct eeh_pe *eeh_pe_get(struct eeh_dev *edev) +{ + struct eeh_pe *root = eeh_phb_pe_get(edev->phb); + struct eeh_pe *pe; + + pe = eeh_pe_traverse(root, __eeh_pe_get, edev); + + return pe; +} + +/** + * eeh_pe_get_parent - Retrieve the parent PE + * @edev: EEH device + * + * The whole PEs existing in the system are organized as hierarchy + * tree. The function is used to retrieve the parent PE according + * to the parent EEH device. + */ +static struct eeh_pe *eeh_pe_get_parent(struct eeh_dev *edev) +{ + struct device_node *dn; + struct eeh_dev *parent; + + /* + * It might have the case for the indirect parent + * EEH device already having associated PE, but + * the direct parent EEH device doesn't have yet. + */ + dn = edev->dn->parent; + while (dn) { + /* We're poking out of PCI territory */ + if (!PCI_DN(dn)) return NULL; + + parent = of_node_to_eeh_dev(dn); + /* We're poking out of PCI territory */ + if (!parent) return NULL; + + if (parent->pe) + return parent->pe; + + dn = dn->parent; + } + + return NULL; +} + +/** + * eeh_add_to_parent_pe - Add EEH device to parent PE + * @edev: EEH device + * + * Add EEH device to the parent PE. If the parent PE already + * exists, the PE type will be changed to EEH_PE_BUS. Otherwise, + * we have to create new PE to hold the EEH device and the new + * PE will be linked to its parent PE as well. + */ +int eeh_add_to_parent_pe(struct eeh_dev *edev) +{ + struct eeh_pe *pe, *parent; + + eeh_lock(); + + /* + * Search the PE has been existing or not according + * to the PE address. If that has been existing, the + * PE should be composed of PCI bus and its subordinate + * components. + */ + pe = eeh_pe_get(edev); + if (pe && !(pe->type & EEH_PE_INVALID)) { + if (!edev->pe_config_addr) { + eeh_unlock(); + pr_err("%s: PE with addr 0x%x already exists\n", + __func__, edev->config_addr); + return -EEXIST; + } + + /* Mark the PE as type of PCI bus */ + pe->type = EEH_PE_BUS; + edev->pe = pe; + + /* Put the edev to PE */ + list_add_tail(&edev->list, &pe->edevs); + eeh_unlock(); + pr_debug("EEH: Add %s to Bus PE#%x\n", + edev->dn->full_name, pe->addr); + + return 0; + } else if (pe && (pe->type & EEH_PE_INVALID)) { + list_add_tail(&edev->list, &pe->edevs); + edev->pe = pe; + /* + * We're running to here because of PCI hotplug caused by + * EEH recovery. We need clear EEH_PE_INVALID until the top. + */ + parent = pe; + while (parent) { + if (!(parent->type & EEH_PE_INVALID)) + break; + parent->type &= ~EEH_PE_INVALID; + parent = parent->parent; + } + eeh_unlock(); + pr_debug("EEH: Add %s to Device PE#%x, Parent PE#%x\n", + edev->dn->full_name, pe->addr, pe->parent->addr); + + return 0; + } + + /* Create a new EEH PE */ + pe = eeh_pe_alloc(edev->phb, EEH_PE_DEVICE); + if (!pe) { + eeh_unlock(); + pr_err("%s: out of memory!\n", __func__); + return -ENOMEM; + } + pe->addr = edev->pe_config_addr; + pe->config_addr = edev->config_addr; + + /* + * Put the new EEH PE into hierarchy tree. If the parent + * can't be found, the newly created PE will be attached + * to PHB directly. Otherwise, we have to associate the + * PE with its parent. + */ + parent = eeh_pe_get_parent(edev); + if (!parent) { + parent = eeh_phb_pe_get(edev->phb); + if (!parent) { + eeh_unlock(); + pr_err("%s: No PHB PE is found (PHB Domain=%d)\n", + __func__, edev->phb->global_number); + edev->pe = NULL; + kfree(pe); + return -EEXIST; + } + } + pe->parent = parent; + + /* + * Put the newly created PE into the child list and + * link the EEH device accordingly. + */ + list_add_tail(&pe->child, &parent->child_list); + list_add_tail(&edev->list, &pe->edevs); + edev->pe = pe; + eeh_unlock(); + pr_debug("EEH: Add %s to Device PE#%x, Parent PE#%x\n", + edev->dn->full_name, pe->addr, pe->parent->addr); + + return 0; +} + +/** + * eeh_rmv_from_parent_pe - Remove one EEH device from the associated PE + * @edev: EEH device + * @purge_pe: remove PE or not + * + * The PE hierarchy tree might be changed when doing PCI hotplug. + * Also, the PCI devices or buses could be removed from the system + * during EEH recovery. So we have to call the function remove the + * corresponding PE accordingly if necessary. + */ +int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe) +{ + struct eeh_pe *pe, *parent, *child; + int cnt; + + if (!edev->pe) { + pr_warning("%s: No PE found for EEH device %s\n", + __func__, edev->dn->full_name); + return -EEXIST; + } + + eeh_lock(); + + /* Remove the EEH device */ + pe = edev->pe; + edev->pe = NULL; + list_del(&edev->list); + + /* + * Check if the parent PE includes any EEH devices. + * If not, we should delete that. Also, we should + * delete the parent PE if it doesn't have associated + * child PEs and EEH devices. + */ + while (1) { + parent = pe->parent; + if (pe->type & EEH_PE_PHB) + break; + + if (purge_pe) { + if (list_empty(&pe->edevs) && + list_empty(&pe->child_list)) { + list_del(&pe->child); + kfree(pe); + } else { + break; + } + } else { + if (list_empty(&pe->edevs)) { + cnt = 0; + list_for_each_entry(child, &pe->child_list, child) { + if (!(pe->type & EEH_PE_INVALID)) { + cnt++; + break; + } + } + + if (!cnt) + pe->type |= EEH_PE_INVALID; + else + break; + } + } + + pe = parent; + } + + eeh_unlock(); + + return 0; +} + +/** + * __eeh_pe_state_mark - Mark the state for the PE + * @data: EEH PE + * @flag: state + * + * The function is used to mark the indicated state for the given + * PE. Also, the associated PCI devices will be put into IO frozen + * state as well. + */ +static void *__eeh_pe_state_mark(void *data, void *flag) +{ + struct eeh_pe *pe = (struct eeh_pe *)data; + int state = *((int *)flag); + struct eeh_dev *tmp; + struct pci_dev *pdev; + + /* + * Mark the PE with the indicated state. Also, + * the associated PCI device will be put into + * I/O frozen state to avoid I/O accesses from + * the PCI device driver. + */ + pe->state |= state; + eeh_pe_for_each_dev(pe, tmp) { + pdev = eeh_dev_to_pci_dev(tmp); + if (pdev) + pdev->error_state = pci_channel_io_frozen; + } + + return NULL; +} + +/** + * eeh_pe_state_mark - Mark specified state for PE and its associated device + * @pe: EEH PE + * + * EEH error affects the current PE and its child PEs. The function + * is used to mark appropriate state for the affected PEs and the + * associated devices. + */ +void eeh_pe_state_mark(struct eeh_pe *pe, int state) +{ + eeh_lock(); + eeh_pe_traverse(pe, __eeh_pe_state_mark, &state); + eeh_unlock(); +} + +/** + * __eeh_pe_state_clear - Clear state for the PE + * @data: EEH PE + * @flag: state + * + * The function is used to clear the indicated state from the + * given PE. Besides, we also clear the check count of the PE + * as well. + */ +static void *__eeh_pe_state_clear(void *data, void *flag) +{ + struct eeh_pe *pe = (struct eeh_pe *)data; + int state = *((int *)flag); + + pe->state &= ~state; + pe->check_count = 0; + + return NULL; +} + +/** + * eeh_pe_state_clear - Clear state for the PE and its children + * @pe: PE + * @state: state to be cleared + * + * When the PE and its children has been recovered from error, + * we need clear the error state for that. The function is used + * for the purpose. + */ +void eeh_pe_state_clear(struct eeh_pe *pe, int state) +{ + eeh_lock(); + eeh_pe_traverse(pe, __eeh_pe_state_clear, &state); + eeh_unlock(); +} + +/** + * eeh_restore_one_device_bars - Restore the Base Address Registers for one device + * @data: EEH device + * @flag: Unused + * + * Loads the PCI configuration space base address registers, + * the expansion ROM base address, the latency timer, and etc. + * from the saved values in the device node. + */ +static void *eeh_restore_one_device_bars(void *data, void *flag) +{ + int i; + u32 cmd; + struct eeh_dev *edev = (struct eeh_dev *)data; + struct device_node *dn = eeh_dev_to_of_node(edev); + + for (i = 4; i < 10; i++) + eeh_ops->write_config(dn, i*4, 4, edev->config_space[i]); + /* 12 == Expansion ROM Address */ + eeh_ops->write_config(dn, 12*4, 4, edev->config_space[12]); + +#define BYTE_SWAP(OFF) (8*((OFF)/4)+3-(OFF)) +#define SAVED_BYTE(OFF) (((u8 *)(edev->config_space))[BYTE_SWAP(OFF)]) + + eeh_ops->write_config(dn, PCI_CACHE_LINE_SIZE, 1, + SAVED_BYTE(PCI_CACHE_LINE_SIZE)); + eeh_ops->write_config(dn, PCI_LATENCY_TIMER, 1, + SAVED_BYTE(PCI_LATENCY_TIMER)); + + /* max latency, min grant, interrupt pin and line */ + eeh_ops->write_config(dn, 15*4, 4, edev->config_space[15]); + + /* + * Restore PERR & SERR bits, some devices require it, + * don't touch the other command bits + */ + eeh_ops->read_config(dn, PCI_COMMAND, 4, &cmd); + if (edev->config_space[1] & PCI_COMMAND_PARITY) + cmd |= PCI_COMMAND_PARITY; + else + cmd &= ~PCI_COMMAND_PARITY; + if (edev->config_space[1] & PCI_COMMAND_SERR) + cmd |= PCI_COMMAND_SERR; + else + cmd &= ~PCI_COMMAND_SERR; + eeh_ops->write_config(dn, PCI_COMMAND, 4, cmd); + + return NULL; +} + +/** + * eeh_pe_restore_bars - Restore the PCI config space info + * @pe: EEH PE + * + * This routine performs a recursive walk to the children + * of this device as well. + */ +void eeh_pe_restore_bars(struct eeh_pe *pe) +{ + /* + * We needn't take the EEH lock since eeh_pe_dev_traverse() + * will take that. + */ + eeh_pe_dev_traverse(pe, eeh_restore_one_device_bars, NULL); +} + +/** + * eeh_pe_bus_get - Retrieve PCI bus according to the given PE + * @pe: EEH PE + * + * Retrieve the PCI bus according to the given PE. Basically, + * there're 3 types of PEs: PHB/Bus/Device. For PHB PE, the + * primary PCI bus will be retrieved. The parent bus will be + * returned for BUS PE. However, we don't have associated PCI + * bus for DEVICE PE. + */ +struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe) +{ + struct pci_bus *bus = NULL; + struct eeh_dev *edev; + struct pci_dev *pdev; + + eeh_lock(); + + if (pe->type & EEH_PE_PHB) { + bus = pe->phb->bus; + } else if (pe->type & EEH_PE_BUS) { + edev = list_first_entry(&pe->edevs, struct eeh_dev, list); + pdev = eeh_dev_to_pci_dev(edev); + if (pdev) + bus = pdev->bus; + } + + eeh_unlock(); + + return bus; +} diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index c33360ec..19506f9 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -129,27 +129,117 @@ static int pseries_eeh_init(void) eeh_error_buf_size = RTAS_ERROR_LOG_MAX; } + /* Set EEH probe mode */ + eeh_probe_mode_set(EEH_PROBE_MODE_DEVTREE); + return 0; } /** + * pseries_eeh_of_probe - EEH probe on the given device + * @dn: OF node + * @flag: Unused + * + * When EEH module is installed during system boot, all PCI devices + * are checked one by one to see if it supports EEH. The function + * is introduced for the purpose. + */ +static void *pseries_eeh_of_probe(struct device_node *dn, void *flag) +{ + struct eeh_dev *edev; + struct eeh_pe pe; + const u32 *class_code, *vendor_id, *device_id; + const u32 *regs; + int enable = 0; + int ret; + + /* Retrieve OF node and eeh device */ + edev = of_node_to_eeh_dev(dn); + if (!of_device_is_available(dn)) + return NULL; + + /* Retrieve class/vendor/device IDs */ + class_code = of_get_property(dn, "class-code", NULL); + vendor_id = of_get_property(dn, "vendor-id", NULL); + device_id = of_get_property(dn, "device-id", NULL); + + /* Skip for bad OF node or PCI-ISA bridge */ + if (!class_code || !vendor_id || !device_id) + return NULL; + if (dn->type && !strcmp(dn->type, "isa")) + return NULL; + + /* Update class code and mode of eeh device */ + edev->class_code = *class_code; + edev->mode = 0; + + /* Retrieve the device address */ + regs = of_get_property(dn, "reg", NULL); + if (!regs) { + pr_warning("%s: OF node property %s::reg not found\n", + __func__, dn->full_name); + return NULL; + } + + /* Initialize the fake PE */ + memset(&pe, 0, sizeof(struct eeh_pe)); + pe.phb = edev->phb; + pe.config_addr = regs[0]; + + /* Enable EEH on the device */ + ret = eeh_ops->set_option(&pe, EEH_OPT_ENABLE); + if (!ret) { + edev->config_addr = regs[0]; + /* Retrieve PE address */ + edev->pe_config_addr = eeh_ops->get_pe_addr(&pe); + pe.addr = edev->pe_config_addr; + + /* Some older systems (Power4) allow the ibm,set-eeh-option + * call to succeed even on nodes where EEH is not supported. + * Verify support explicitly. + */ + ret = eeh_ops->get_state(&pe, NULL); + if (ret > 0 && ret != EEH_STATE_NOT_SUPPORT) + enable = 1; + + if (enable) { + eeh_subsystem_enabled = 1; + eeh_add_to_parent_pe(edev); + + pr_debug("%s: EEH enabled on %s PHB#%d-PE#%x, config addr#%x\n", + __func__, dn->full_name, pe.phb->global_number, + pe.addr, pe.config_addr); + } else if (dn->parent && of_node_to_eeh_dev(dn->parent) && + (of_node_to_eeh_dev(dn->parent))->pe) { + /* This device doesn't support EEH, but it may have an + * EEH parent, in which case we mark it as supported. + */ + edev->config_addr = of_node_to_eeh_dev(dn->parent)->config_addr; + edev->pe_config_addr = of_node_to_eeh_dev(dn->parent)->pe_config_addr; + eeh_add_to_parent_pe(edev); + } + } + + /* Save memory bars */ + eeh_save_bars(edev); + + return NULL; +} + +/** * pseries_eeh_set_option - Initialize EEH or MMIO/DMA reenable - * @dn: device node + * @pe: EEH PE * @option: operation to be issued * * The function is used to control the EEH functionality globally. * Currently, following options are support according to PAPR: * Enable EEH, Disable EEH, Enable MMIO and Enable DMA */ -static int pseries_eeh_set_option(struct device_node *dn, int option) +static int pseries_eeh_set_option(struct eeh_pe *pe, int option) { int ret = 0; - struct eeh_dev *edev; - const u32 *reg; int config_addr; - edev = of_node_to_eeh_dev(dn); - /* * When we're enabling or disabling EEH functioality on * the particular PE, the PE config address is possibly @@ -159,15 +249,11 @@ static int pseries_eeh_set_option(struct device_node *dn, int option) switch (option) { case EEH_OPT_DISABLE: case EEH_OPT_ENABLE: - reg = of_get_property(dn, "reg", NULL); - config_addr = reg[0]; - break; - case EEH_OPT_THAW_MMIO: case EEH_OPT_THAW_DMA: - config_addr = edev->config_addr; - if (edev->pe_config_addr) - config_addr = edev->pe_config_addr; + config_addr = pe->config_addr; + if (pe->addr) + config_addr = pe->addr; break; default: @@ -177,15 +263,15 @@ static int pseries_eeh_set_option(struct device_node *dn, int option) } ret = rtas_call(ibm_set_eeh_option, 4, 1, NULL, - config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid), option); + config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid), option); return ret; } /** * pseries_eeh_get_pe_addr - Retrieve PE address - * @dn: device node + * @pe: EEH PE * * Retrieve the assocated PE address. Actually, there're 2 RTAS * function calls dedicated for the purpose. We need implement @@ -196,14 +282,11 @@ static int pseries_eeh_set_option(struct device_node *dn, int option) * It's notable that zero'ed return value means invalid PE config * address. */ -static int pseries_eeh_get_pe_addr(struct device_node *dn) +static int pseries_eeh_get_pe_addr(struct eeh_pe *pe) { - struct eeh_dev *edev; int ret = 0; int rets[3]; - edev = of_node_to_eeh_dev(dn); - if (ibm_get_config_addr_info2 != RTAS_UNKNOWN_SERVICE) { /* * First of all, we need to make sure there has one PE @@ -211,18 +294,18 @@ static int pseries_eeh_get_pe_addr(struct device_node *dn) * meaningless. */ ret = rtas_call(ibm_get_config_addr_info2, 4, 2, rets, - edev->config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid), 1); + pe->config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid), 1); if (ret || (rets[0] == 0)) return 0; /* Retrieve the associated PE config address */ ret = rtas_call(ibm_get_config_addr_info2, 4, 2, rets, - edev->config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid), 0); + pe->config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid), 0); if (ret) { - pr_warning("%s: Failed to get PE address for %s\n", - __func__, dn->full_name); + pr_warning("%s: Failed to get address for PHB#%d-PE#%x\n", + __func__, pe->phb->global_number, pe->config_addr); return 0; } @@ -231,11 +314,11 @@ static int pseries_eeh_get_pe_addr(struct device_node *dn) if (ibm_get_config_addr_info != RTAS_UNKNOWN_SERVICE) { ret = rtas_call(ibm_get_config_addr_info, 4, 2, rets, - edev->config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid), 0); + pe->config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid), 0); if (ret) { - pr_warning("%s: Failed to get PE address for %s\n", - __func__, dn->full_name); + pr_warning("%s: Failed to get address for PHB#%d-PE#%x\n", + __func__, pe->phb->global_number, pe->config_addr); return 0; } @@ -247,7 +330,7 @@ static int pseries_eeh_get_pe_addr(struct device_node *dn) /** * pseries_eeh_get_state - Retrieve PE state - * @dn: PE associated device node + * @pe: EEH PE * @state: return value * * Retrieve the state of the specified PE. On RTAS compliant @@ -258,30 +341,28 @@ static int pseries_eeh_get_pe_addr(struct device_node *dn) * RTAS calls for the purpose, we need to try the new one and back * to the old one if the new one couldn't work properly. */ -static int pseries_eeh_get_state(struct device_node *dn, int *state) +static int pseries_eeh_get_state(struct eeh_pe *pe, int *state) { - struct eeh_dev *edev; int config_addr; int ret; int rets[4]; int result; /* Figure out PE config address if possible */ - edev = of_node_to_eeh_dev(dn); - config_addr = edev->config_addr; - if (edev->pe_config_addr) - config_addr = edev->pe_config_addr; + config_addr = pe->config_addr; + if (pe->addr) + config_addr = pe->addr; if (ibm_read_slot_reset_state2 != RTAS_UNKNOWN_SERVICE) { ret = rtas_call(ibm_read_slot_reset_state2, 3, 4, rets, - config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid)); + config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid)); } else if (ibm_read_slot_reset_state != RTAS_UNKNOWN_SERVICE) { /* Fake PE unavailable info */ rets[2] = 0; ret = rtas_call(ibm_read_slot_reset_state, 3, 3, rets, - config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid)); + config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid)); } else { return EEH_STATE_NOT_SUPPORT; } @@ -333,34 +414,32 @@ static int pseries_eeh_get_state(struct device_node *dn, int *state) /** * pseries_eeh_reset - Reset the specified PE - * @dn: PE associated device node + * @pe: EEH PE * @option: reset option * * Reset the specified PE */ -static int pseries_eeh_reset(struct device_node *dn, int option) +static int pseries_eeh_reset(struct eeh_pe *pe, int option) { - struct eeh_dev *edev; int config_addr; int ret; /* Figure out PE address */ - edev = of_node_to_eeh_dev(dn); - config_addr = edev->config_addr; - if (edev->pe_config_addr) - config_addr = edev->pe_config_addr; + config_addr = pe->config_addr; + if (pe->addr) + config_addr = pe->addr; /* Reset PE through RTAS call */ ret = rtas_call(ibm_set_slot_reset, 4, 1, NULL, - config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid), option); + config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid), option); /* If fundamental-reset not supported, try hot-reset */ if (option == EEH_RESET_FUNDAMENTAL && ret == -8) { ret = rtas_call(ibm_set_slot_reset, 4, 1, NULL, - config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid), EEH_RESET_HOT); + config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid), EEH_RESET_HOT); } return ret; @@ -368,13 +447,13 @@ static int pseries_eeh_reset(struct device_node *dn, int option) /** * pseries_eeh_wait_state - Wait for PE state - * @dn: PE associated device node + * @pe: EEH PE * @max_wait: maximal period in microsecond * * Wait for the state of associated PE. It might take some time * to retrieve the PE's state. */ -static int pseries_eeh_wait_state(struct device_node *dn, int max_wait) +static int pseries_eeh_wait_state(struct eeh_pe *pe, int max_wait) { int ret; int mwait; @@ -391,7 +470,7 @@ static int pseries_eeh_wait_state(struct device_node *dn, int max_wait) #define EEH_STATE_MAX_WAIT_TIME (300 * 1000) while (1) { - ret = pseries_eeh_get_state(dn, &mwait); + ret = pseries_eeh_get_state(pe, &mwait); /* * If the PE's state is temporarily unavailable, @@ -426,7 +505,7 @@ static int pseries_eeh_wait_state(struct device_node *dn, int max_wait) /** * pseries_eeh_get_log - Retrieve error log - * @dn: device node + * @pe: EEH PE * @severity: temporary or permanent error log * @drv_log: driver log to be combined with retrieved error log * @len: length of driver log @@ -435,24 +514,22 @@ static int pseries_eeh_wait_state(struct device_node *dn, int max_wait) * Actually, the error will be retrieved through the dedicated * RTAS call. */ -static int pseries_eeh_get_log(struct device_node *dn, int severity, char *drv_log, unsigned long len) +static int pseries_eeh_get_log(struct eeh_pe *pe, int severity, char *drv_log, unsigned long len) { - struct eeh_dev *edev; int config_addr; unsigned long flags; int ret; - edev = of_node_to_eeh_dev(dn); spin_lock_irqsave(&slot_errbuf_lock, flags); memset(slot_errbuf, 0, eeh_error_buf_size); /* Figure out the PE address */ - config_addr = edev->config_addr; - if (edev->pe_config_addr) - config_addr = edev->pe_config_addr; + config_addr = pe->config_addr; + if (pe->addr) + config_addr = pe->addr; ret = rtas_call(ibm_slot_error_detail, 8, 1, NULL, config_addr, - BUID_HI(edev->phb->buid), BUID_LO(edev->phb->buid), + BUID_HI(pe->phb->buid), BUID_LO(pe->phb->buid), virt_to_phys(drv_log), len, virt_to_phys(slot_errbuf), eeh_error_buf_size, severity); @@ -465,40 +542,38 @@ static int pseries_eeh_get_log(struct device_node *dn, int severity, char *drv_l /** * pseries_eeh_configure_bridge - Configure PCI bridges in the indicated PE - * @dn: PE associated device node + * @pe: EEH PE * * The function will be called to reconfigure the bridges included * in the specified PE so that the mulfunctional PE would be recovered * again. */ -static int pseries_eeh_configure_bridge(struct device_node *dn) +static int pseries_eeh_configure_bridge(struct eeh_pe *pe) { - struct eeh_dev *edev; int config_addr; int ret; /* Figure out the PE address */ - edev = of_node_to_eeh_dev(dn); - config_addr = edev->config_addr; - if (edev->pe_config_addr) - config_addr = edev->pe_config_addr; + config_addr = pe->config_addr; + if (pe->addr) + config_addr = pe->addr; /* Use new configure-pe function, if supported */ if (ibm_configure_pe != RTAS_UNKNOWN_SERVICE) { ret = rtas_call(ibm_configure_pe, 3, 1, NULL, - config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid)); + config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid)); } else if (ibm_configure_bridge != RTAS_UNKNOWN_SERVICE) { ret = rtas_call(ibm_configure_bridge, 3, 1, NULL, - config_addr, BUID_HI(edev->phb->buid), - BUID_LO(edev->phb->buid)); + config_addr, BUID_HI(pe->phb->buid), + BUID_LO(pe->phb->buid)); } else { return -EFAULT; } if (ret) - pr_warning("%s: Unable to configure bridge %d for %s\n", - __func__, ret, dn->full_name); + pr_warning("%s: Unable to configure bridge PHB#%d-PE#%x (%d)\n", + __func__, pe->phb->global_number, pe->addr, ret); return ret; } @@ -542,6 +617,8 @@ static int pseries_eeh_write_config(struct device_node *dn, int where, int size, static struct eeh_ops pseries_eeh_ops = { .name = "pseries", .init = pseries_eeh_init, + .of_probe = pseries_eeh_of_probe, + .dev_probe = NULL, .set_option = pseries_eeh_set_option, .get_pe_addr = pseries_eeh_get_pe_addr, .get_state = pseries_eeh_get_state, @@ -559,7 +636,21 @@ static struct eeh_ops pseries_eeh_ops = { * EEH initialization on pseries platform. This function should be * called before any EEH related functions. */ -int __init eeh_pseries_init(void) +static int __init eeh_pseries_init(void) { - return eeh_ops_register(&pseries_eeh_ops); + int ret = -EINVAL; + + if (!machine_is(pseries)) + return ret; + + ret = eeh_ops_register(&pseries_eeh_ops); + if (!ret) + pr_info("EEH: pSeries platform initialized\n"); + else + pr_info("EEH: pSeries platform initialization failure (%d)\n", + ret); + + return ret; } + +early_initcall(eeh_pseries_init); diff --git a/arch/powerpc/platforms/pseries/eeh_sysfs.c b/arch/powerpc/platforms/pseries/eeh_sysfs.c index 243b351..d377083 100644 --- a/arch/powerpc/platforms/pseries/eeh_sysfs.c +++ b/arch/powerpc/platforms/pseries/eeh_sysfs.c @@ -53,9 +53,6 @@ static DEVICE_ATTR(_name, S_IRUGO, eeh_show_##_name, NULL); EEH_SHOW_ATTR(eeh_mode, mode, "0x%x"); EEH_SHOW_ATTR(eeh_config_addr, config_addr, "0x%x"); EEH_SHOW_ATTR(eeh_pe_config_addr, pe_config_addr, "0x%x"); -EEH_SHOW_ATTR(eeh_check_count, check_count, "%d" ); -EEH_SHOW_ATTR(eeh_freeze_count, freeze_count, "%d" ); -EEH_SHOW_ATTR(eeh_false_positives, false_positives, "%d" ); void eeh_sysfs_add_device(struct pci_dev *pdev) { @@ -64,9 +61,6 @@ void eeh_sysfs_add_device(struct pci_dev *pdev) rc += device_create_file(&pdev->dev, &dev_attr_eeh_mode); rc += device_create_file(&pdev->dev, &dev_attr_eeh_config_addr); rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_config_addr); - rc += device_create_file(&pdev->dev, &dev_attr_eeh_check_count); - rc += device_create_file(&pdev->dev, &dev_attr_eeh_false_positives); - rc += device_create_file(&pdev->dev, &dev_attr_eeh_freeze_count); if (rc) printk(KERN_WARNING "EEH: Unable to create sysfs entries\n"); @@ -77,8 +71,5 @@ void eeh_sysfs_remove_device(struct pci_dev *pdev) device_remove_file(&pdev->dev, &dev_attr_eeh_mode); device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr); device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr); - device_remove_file(&pdev->dev, &dev_attr_eeh_check_count); - device_remove_file(&pdev->dev, &dev_attr_eeh_false_positives); - device_remove_file(&pdev->dev, &dev_attr_eeh_freeze_count); } diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index bca220f..6153eea 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -28,6 +28,7 @@ #include <linux/types.h> #include <linux/slab.h> #include <linux/mm.h> +#include <linux/memblock.h> #include <linux/spinlock.h> #include <linux/sched.h> /* for show_stack */ #include <linux/string.h> @@ -41,7 +42,6 @@ #include <asm/iommu.h> #include <asm/pci-bridge.h> #include <asm/machdep.h> -#include <asm/abs_addr.h> #include <asm/pSeries_reconfig.h> #include <asm/firmware.h> #include <asm/tce.h> @@ -99,7 +99,7 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index, while (npages--) { /* can't move this out since we might cross MEMBLOCK boundary */ - rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT; + rpn = __pa(uaddr) >> TCE_SHIFT; *tcep = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT; uaddr += TCE_PAGE_SIZE; @@ -148,7 +148,7 @@ static int tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum, int ret = 0; long tcenum_start = tcenum, npages_start = npages; - rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT; + rpn = __pa(uaddr) >> TCE_SHIFT; proto_tce = TCE_PCI_READ; if (direction != DMA_TO_DEVICE) proto_tce |= TCE_PCI_WRITE; @@ -217,7 +217,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum, __get_cpu_var(tce_page) = tcep; } - rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT; + rpn = __pa(uaddr) >> TCE_SHIFT; proto_tce = TCE_PCI_READ; if (direction != DMA_TO_DEVICE) proto_tce |= TCE_PCI_WRITE; @@ -237,7 +237,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum, rc = plpar_tce_put_indirect((u64)tbl->it_index, (u64)tcenum << 12, - (u64)virt_to_abs(tcep), + (u64)__pa(tcep), limit); npages -= limit; @@ -441,7 +441,7 @@ static int tce_setrange_multi_pSeriesLP(unsigned long start_pfn, rc = plpar_tce_put_indirect(liobn, dma_offset, - (u64)virt_to_abs(tcep), + (u64)__pa(tcep), limit); num_tce -= limit; diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 5f3ef87..0da39fe 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -31,7 +31,6 @@ #include <asm/page.h> #include <asm/pgtable.h> #include <asm/machdep.h> -#include <asm/abs_addr.h> #include <asm/mmu_context.h> #include <asm/iommu.h> #include <asm/tlbflush.h> @@ -108,9 +107,9 @@ void vpa_init(int cpu) } static long pSeries_lpar_hpte_insert(unsigned long hpte_group, - unsigned long va, unsigned long pa, - unsigned long rflags, unsigned long vflags, - int psize, int ssize) + unsigned long vpn, unsigned long pa, + unsigned long rflags, unsigned long vflags, + int psize, int ssize) { unsigned long lpar_rc; unsigned long flags; @@ -118,11 +117,11 @@ static long pSeries_lpar_hpte_insert(unsigned long hpte_group, unsigned long hpte_v, hpte_r; if (!(vflags & HPTE_V_BOLTED)) - pr_devel("hpte_insert(group=%lx, va=%016lx, pa=%016lx, " - "rflags=%lx, vflags=%lx, psize=%d)\n", - hpte_group, va, pa, rflags, vflags, psize); + pr_devel("hpte_insert(group=%lx, vpn=%016lx, " + "pa=%016lx, rflags=%lx, vflags=%lx, psize=%d)\n", + hpte_group, vpn, pa, rflags, vflags, psize); - hpte_v = hpte_encode_v(va, psize, ssize) | vflags | HPTE_V_VALID; + hpte_v = hpte_encode_v(vpn, psize, ssize) | vflags | HPTE_V_VALID; hpte_r = hpte_encode_r(pa, psize) | rflags; if (!(vflags & HPTE_V_BOLTED)) @@ -227,22 +226,6 @@ static void pSeries_lpar_hptab_clear(void) } /* - * This computes the AVPN and B fields of the first dword of a HPTE, - * for use when we want to match an existing PTE. The bottom 7 bits - * of the returned value are zero. - */ -static inline unsigned long hpte_encode_avpn(unsigned long va, int psize, - int ssize) -{ - unsigned long v; - - v = (va >> 23) & ~(mmu_psize_defs[psize].avpnm); - v <<= HPTE_V_AVPN_SHIFT; - v |= ((unsigned long) ssize) << HPTE_V_SSIZE_SHIFT; - return v; -} - -/* * NOTE: for updatepp ops we are fortunate that the linux "newpp" bits and * the low 3 bits of flags happen to line up. So no transform is needed. * We can probably optimize here and assume the high bits of newpp are @@ -250,14 +233,14 @@ static inline unsigned long hpte_encode_avpn(unsigned long va, int psize, */ static long pSeries_lpar_hpte_updatepp(unsigned long slot, unsigned long newpp, - unsigned long va, + unsigned long vpn, int psize, int ssize, int local) { unsigned long lpar_rc; unsigned long flags = (newpp & 7) | H_AVPN; unsigned long want_v; - want_v = hpte_encode_avpn(va, psize, ssize); + want_v = hpte_encode_avpn(vpn, psize, ssize); pr_devel(" update: avpnv=%016lx, hash=%016lx, f=%lx, psize: %d ...", want_v, slot, flags, psize); @@ -295,15 +278,15 @@ static unsigned long pSeries_lpar_hpte_getword0(unsigned long slot) return dword0; } -static long pSeries_lpar_hpte_find(unsigned long va, int psize, int ssize) +static long pSeries_lpar_hpte_find(unsigned long vpn, int psize, int ssize) { unsigned long hash; unsigned long i; long slot; unsigned long want_v, hpte_v; - hash = hpt_hash(va, mmu_psize_defs[psize].shift, ssize); - want_v = hpte_encode_avpn(va, psize, ssize); + hash = hpt_hash(vpn, mmu_psize_defs[psize].shift, ssize); + want_v = hpte_encode_avpn(vpn, psize, ssize); /* Bolted entries are always in the primary group */ slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; @@ -323,12 +306,13 @@ static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp, unsigned long ea, int psize, int ssize) { - unsigned long lpar_rc, slot, vsid, va, flags; + unsigned long vpn; + unsigned long lpar_rc, slot, vsid, flags; vsid = get_kernel_vsid(ea, ssize); - va = hpt_va(ea, vsid, ssize); + vpn = hpt_vpn(ea, vsid, ssize); - slot = pSeries_lpar_hpte_find(va, psize, ssize); + slot = pSeries_lpar_hpte_find(vpn, psize, ssize); BUG_ON(slot == -1); flags = newpp & 7; @@ -337,17 +321,17 @@ static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp, BUG_ON(lpar_rc != H_SUCCESS); } -static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va, +static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long vpn, int psize, int ssize, int local) { unsigned long want_v; unsigned long lpar_rc; unsigned long dummy1, dummy2; - pr_devel(" inval : slot=%lx, va=%016lx, psize: %d, local: %d\n", - slot, va, psize, local); + pr_devel(" inval : slot=%lx, vpn=%016lx, psize: %d, local: %d\n", + slot, vpn, psize, local); - want_v = hpte_encode_avpn(va, psize, ssize); + want_v = hpte_encode_avpn(vpn, psize, ssize); lpar_rc = plpar_pte_remove(H_AVPN, slot, want_v, &dummy1, &dummy2); if (lpar_rc == H_NOT_FOUND) return; @@ -358,15 +342,16 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va, static void pSeries_lpar_hpte_removebolted(unsigned long ea, int psize, int ssize) { - unsigned long slot, vsid, va; + unsigned long vpn; + unsigned long slot, vsid; vsid = get_kernel_vsid(ea, ssize); - va = hpt_va(ea, vsid, ssize); + vpn = hpt_vpn(ea, vsid, ssize); - slot = pSeries_lpar_hpte_find(va, psize, ssize); + slot = pSeries_lpar_hpte_find(vpn, psize, ssize); BUG_ON(slot == -1); - pSeries_lpar_hpte_invalidate(slot, va, psize, ssize, 0); + pSeries_lpar_hpte_invalidate(slot, vpn, psize, ssize, 0); } /* Flag bits for H_BULK_REMOVE */ @@ -382,12 +367,12 @@ static void pSeries_lpar_hpte_removebolted(unsigned long ea, */ static void pSeries_lpar_flush_hash_range(unsigned long number, int local) { + unsigned long vpn; unsigned long i, pix, rc; unsigned long flags = 0; struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch); int lock_tlbie = !mmu_has_feature(MMU_FTR_LOCKLESS_TLBIE); unsigned long param[9]; - unsigned long va; unsigned long hash, index, shift, hidx, slot; real_pte_t pte; int psize, ssize; @@ -399,21 +384,21 @@ static void pSeries_lpar_flush_hash_range(unsigned long number, int local) ssize = batch->ssize; pix = 0; for (i = 0; i < number; i++) { - va = batch->vaddr[i]; + vpn = batch->vpn[i]; pte = batch->pte[i]; - pte_iterate_hashed_subpages(pte, psize, va, index, shift) { - hash = hpt_hash(va, shift, ssize); + pte_iterate_hashed_subpages(pte, psize, vpn, index, shift) { + hash = hpt_hash(vpn, shift, ssize); hidx = __rpte_to_hidx(pte, index); if (hidx & _PTEIDX_SECONDARY) hash = ~hash; slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; if (!firmware_has_feature(FW_FEATURE_BULK_REMOVE)) { - pSeries_lpar_hpte_invalidate(slot, va, psize, + pSeries_lpar_hpte_invalidate(slot, vpn, psize, ssize, local); } else { param[pix] = HBR_REQUEST | HBR_AVPN | slot; - param[pix+1] = hpte_encode_avpn(va, psize, + param[pix+1] = hpte_encode_avpn(vpn, psize, ssize); pix += 2; if (pix == 8) { diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c index 109fdb7..d19f497 100644 --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -210,6 +210,7 @@ static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total) static struct device_node *find_pe_dn(struct pci_dev *dev, int *total) { struct device_node *dn; + struct eeh_dev *edev; /* Found our PE and assume 8 at that point. */ @@ -217,7 +218,10 @@ static struct device_node *find_pe_dn(struct pci_dev *dev, int *total) if (!dn) return NULL; - dn = eeh_find_device_pe(dn); + /* Get the top level device in the PE */ + edev = of_node_to_eeh_dev(dn); + edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list); + dn = eeh_dev_to_of_node(edev); if (!dn) return NULL; @@ -387,12 +391,13 @@ static int check_msix_entries(struct pci_dev *pdev) return 0; } -static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) +static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type) { struct pci_dn *pdn; int hwirq, virq, i, rc; struct msi_desc *entry; struct msi_msg msg; + int nvec = nvec_in; pdn = get_pdn(pdev); if (!pdn) @@ -402,10 +407,23 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) return -EINVAL; /* + * Firmware currently refuse any non power of two allocation + * so we round up if the quota will allow it. + */ + if (type == PCI_CAP_ID_MSIX) { + int m = roundup_pow_of_two(nvec); + int quota = msi_quota_for_device(pdev, m); + + if (quota >= m) + nvec = m; + } + + /* * Try the new more explicit firmware interface, if that fails fall * back to the old interface. The old interface is known to never * return MSI-Xs. */ +again: if (type == PCI_CAP_ID_MSI) { rc = rtas_change_msi(pdn, RTAS_CHANGE_MSI_FN, nvec); @@ -417,6 +435,10 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) rc = rtas_change_msi(pdn, RTAS_CHANGE_MSIX_FN, nvec); if (rc != nvec) { + if (nvec != nvec_in) { + nvec = nvec_in; + goto again; + } pr_debug("rtas_msi: rtas_change_msi() failed\n"); return rc; } diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index 2c6ded2..56b864d 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -73,7 +73,7 @@ void __init pSeries_final_fixup(void) { pSeries_request_regions(); - pci_addr_cache_build(); + eeh_addr_cache_build(); } /* diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index 3ccebc8..261a577 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -65,27 +65,43 @@ pcibios_find_pci_bus(struct device_node *dn) EXPORT_SYMBOL_GPL(pcibios_find_pci_bus); /** - * pcibios_remove_pci_devices - remove all devices under this bus + * __pcibios_remove_pci_devices - remove all devices under this bus + * @bus: the indicated PCI bus + * @purge_pe: destroy the PE on removal of PCI devices * * Remove all of the PCI devices under this bus both from the * linux pci device tree, and from the powerpc EEH address cache. + * By default, the corresponding PE will be destroied during the + * normal PCI hotplug path. For PCI hotplug during EEH recovery, + * the corresponding PE won't be destroied and deallocated. */ -void pcibios_remove_pci_devices(struct pci_bus *bus) +void __pcibios_remove_pci_devices(struct pci_bus *bus, int purge_pe) { - struct pci_dev *dev, *tmp; + struct pci_dev *dev, *tmp; struct pci_bus *child_bus; /* First go down child busses */ list_for_each_entry(child_bus, &bus->children, node) - pcibios_remove_pci_devices(child_bus); + __pcibios_remove_pci_devices(child_bus, purge_pe); pr_debug("PCI: Removing devices on bus %04x:%02x\n", - pci_domain_nr(bus), bus->number); + pci_domain_nr(bus), bus->number); list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) { pr_debug(" * Removing %s...\n", pci_name(dev)); - eeh_remove_bus_device(dev); - pci_stop_and_remove_bus_device(dev); - } + eeh_remove_bus_device(dev, purge_pe); + pci_stop_and_remove_bus_device(dev); + } +} + +/** + * pcibios_remove_pci_devices - remove all devices under this bus + * + * Remove all of the PCI devices under this bus both from the + * linux pci device tree, and from the powerpc EEH address cache. + */ +void pcibios_remove_pci_devices(struct pci_bus *bus) +{ + __pcibios_remove_pci_devices(bus, 1); } EXPORT_SYMBOL_GPL(pcibios_remove_pci_devices); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 51ecac9..e3cb7ae 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -388,10 +388,8 @@ static void __init pSeries_setup_arch(void) /* Find and initialize PCI host bridges */ init_pci_config_tokens(); - eeh_pseries_init(); find_and_init_phbs(); pSeries_reconfig_notifier_register(&pci_dn_reconfig_nb); - eeh_init(); pSeries_nvram_init(); @@ -416,16 +414,20 @@ static int __init pSeries_init_panel(void) } machine_arch_initcall(pseries, pSeries_init_panel); -static int pseries_set_dabr(unsigned long dabr) +static int pseries_set_dabr(unsigned long dabr, unsigned long dabrx) { return plpar_hcall_norets(H_SET_DABR, dabr); } -static int pseries_set_xdabr(unsigned long dabr) +static int pseries_set_xdabr(unsigned long dabr, unsigned long dabrx) { - /* We want to catch accesses from kernel and userspace */ - return plpar_hcall_norets(H_SET_XDABR, dabr, - H_DABRX_KERNEL | H_DABRX_USER); + /* Have to set at least one bit in the DABRX according to PAPR */ + if (dabrx == 0 && dabr == 0) + dabrx = DABRX_USER; + /* PAPR says we can only set kernel and user bits */ + dabrx &= DABRX_KERNEL | DABRX_USER; + + return plpar_hcall_norets(H_SET_XDABR, dabr, dabrx); } #define CMO_CHARACTERISTICS_TOKEN 44 @@ -529,10 +531,10 @@ static void __init pSeries_init_early(void) if (firmware_has_feature(FW_FEATURE_LPAR)) hvc_vio_init_early(); #endif - if (firmware_has_feature(FW_FEATURE_DABR)) - ppc_md.set_dabr = pseries_set_dabr; - else if (firmware_has_feature(FW_FEATURE_XDABR)) + if (firmware_has_feature(FW_FEATURE_XDABR)) ppc_md.set_dabr = pseries_set_xdabr; + else if (firmware_has_feature(FW_FEATURE_DABR)) + ppc_md.set_dabr = pseries_set_dabr; pSeries_cmo_feature_init(); iommu_init_early_pSeries(); diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index 1bd7ecb..a57600b 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -15,7 +15,7 @@ obj-$(CONFIG_PPC_DCR_NATIVE) += dcr-low.o obj-$(CONFIG_PPC_PMI) += pmi.o obj-$(CONFIG_U3_DART) += dart_iommu.o obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o -obj-$(CONFIG_FSL_SOC) += fsl_soc.o +obj-$(CONFIG_FSL_SOC) += fsl_soc.o fsl_mpic_err.o obj-$(CONFIG_FSL_PCI) += fsl_pci.o $(fsl-msi-obj-y) obj-$(CONFIG_FSL_PMC) += fsl_pmc.o obj-$(CONFIG_FSL_LBC) += fsl_lbc.o diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index 4f2680f..bd968a4 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -43,7 +43,6 @@ #include <asm/iommu.h> #include <asm/pci-bridge.h> #include <asm/machdep.h> -#include <asm/abs_addr.h> #include <asm/cacheflush.h> #include <asm/ppc-pci.h> @@ -74,11 +73,16 @@ static int dart_is_u4; #define DBG(...) +static DEFINE_SPINLOCK(invalidate_lock); + static inline void dart_tlb_invalidate_all(void) { unsigned long l = 0; unsigned int reg, inv_bit; unsigned long limit; + unsigned long flags; + + spin_lock_irqsave(&invalidate_lock, flags); DBG("dart: flush\n"); @@ -111,12 +115,17 @@ retry: panic("DART: TLB did not flush after waiting a long " "time. Buggy U3 ?"); } + + spin_unlock_irqrestore(&invalidate_lock, flags); } static inline void dart_tlb_invalidate_one(unsigned long bus_rpn) { unsigned int reg; unsigned int l, limit; + unsigned long flags; + + spin_lock_irqsave(&invalidate_lock, flags); reg = DART_CNTL_U4_ENABLE | DART_CNTL_U4_IONE | (bus_rpn & DART_CNTL_U4_IONE_MASK); @@ -138,6 +147,8 @@ wait_more: panic("DART: TLB did not flush after waiting a long " "time. Buggy U4 ?"); } + + spin_unlock_irqrestore(&invalidate_lock, flags); } static void dart_flush(struct iommu_table *tbl) @@ -167,7 +178,7 @@ static int dart_build(struct iommu_table *tbl, long index, */ l = npages; while (l--) { - rpn = virt_to_abs(uaddr) >> DART_PAGE_SHIFT; + rpn = __pa(uaddr) >> DART_PAGE_SHIFT; *(dp++) = DARTMAP_VALID | (rpn & DARTMAP_RPNMASK); @@ -244,7 +255,7 @@ static int __init dart_init(struct device_node *dart_node) panic("DART: Cannot map registers!"); /* Map in DART table */ - dart_vbase = ioremap(virt_to_abs(dart_tablebase), dart_tablesize); + dart_vbase = ioremap(__pa(dart_tablebase), dart_tablesize); /* Fill initial table */ for (i = 0; i < dart_tablesize/4; i++) @@ -463,7 +474,7 @@ void __init alloc_dart_table(void) * will blow up an entire large page anyway in the kernel mapping */ dart_tablebase = (unsigned long) - abs_to_virt(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L)); + __va(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L)); printk(KERN_INFO "DART table allocated at: %lx\n", dart_tablebase); } diff --git a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c index 68ac3aa..d131c8a 100644 --- a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c +++ b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c @@ -193,6 +193,16 @@ static struct of_device_id mpc85xx_l2ctlr_of_match[] = { { .compatible = "fsl,mpc8548-l2-cache-controller", }, + { .compatible = "fsl,mpc8544-l2-cache-controller",}, + { .compatible = "fsl,mpc8572-l2-cache-controller",}, + { .compatible = "fsl,mpc8536-l2-cache-controller",}, + { .compatible = "fsl,p1021-l2-cache-controller",}, + { .compatible = "fsl,p1012-l2-cache-controller",}, + { .compatible = "fsl,p1025-l2-cache-controller",}, + { .compatible = "fsl,p1016-l2-cache-controller",}, + { .compatible = "fsl,p1024-l2-cache-controller",}, + { .compatible = "fsl,p1015-l2-cache-controller",}, + { .compatible = "fsl,p1010-l2-cache-controller",}, {}, }; diff --git a/arch/powerpc/sysdev/fsl_ifc.c b/arch/powerpc/sysdev/fsl_ifc.c index b31f19f..097cc9d2 100644 --- a/arch/powerpc/sysdev/fsl_ifc.c +++ b/arch/powerpc/sysdev/fsl_ifc.c @@ -244,12 +244,6 @@ static int __devinit fsl_ifc_ctrl_probe(struct platform_device *dev) /* get the nand machine irq */ fsl_ifc_ctrl_dev->nand_irq = irq_of_parse_and_map(dev->dev.of_node, 1); - if (fsl_ifc_ctrl_dev->nand_irq == NO_IRQ) { - dev_err(&dev->dev, "failed to get irq resource " - "for NAND Machine\n"); - ret = -ENODEV; - goto err; - } fsl_ifc_ctrl_dev->dev = &dev->dev; @@ -267,12 +261,14 @@ static int __devinit fsl_ifc_ctrl_probe(struct platform_device *dev) goto err_irq; } - ret = request_irq(fsl_ifc_ctrl_dev->nand_irq, fsl_ifc_nand_irq, 0, - "fsl-ifc-nand", fsl_ifc_ctrl_dev); - if (ret != 0) { - dev_err(&dev->dev, "failed to install irq (%d)\n", - fsl_ifc_ctrl_dev->nand_irq); - goto err_nandirq; + if (fsl_ifc_ctrl_dev->nand_irq) { + ret = request_irq(fsl_ifc_ctrl_dev->nand_irq, fsl_ifc_nand_irq, + 0, "fsl-ifc-nand", fsl_ifc_ctrl_dev); + if (ret != 0) { + dev_err(&dev->dev, "failed to install irq (%d)\n", + fsl_ifc_ctrl_dev->nand_irq); + goto err_nandirq; + } } return 0; diff --git a/arch/powerpc/sysdev/fsl_mpic_err.c b/arch/powerpc/sysdev/fsl_mpic_err.c new file mode 100644 index 0000000..b83f325 --- /dev/null +++ b/arch/powerpc/sysdev/fsl_mpic_err.c @@ -0,0 +1,149 @@ +/* + * Copyright (C) 2012 Freescale Semiconductor, Inc. + * + * Author: Varun Sethi <varun.sethi@freescale.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 of the + * License. + * + */ + +#include <linux/irq.h> +#include <linux/smp.h> +#include <linux/interrupt.h> + +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/mpic.h> + +#include "mpic.h" + +#define MPIC_ERR_INT_BASE 0x3900 +#define MPIC_ERR_INT_EISR 0x0000 +#define MPIC_ERR_INT_EIMR 0x0010 + +static inline u32 mpic_fsl_err_read(u32 __iomem *base, unsigned int err_reg) +{ + return in_be32(base + (err_reg >> 2)); +} + +static inline void mpic_fsl_err_write(u32 __iomem *base, u32 value) +{ + out_be32(base + (MPIC_ERR_INT_EIMR >> 2), value); +} + +static void fsl_mpic_mask_err(struct irq_data *d) +{ + u32 eimr; + struct mpic *mpic = irq_data_get_irq_chip_data(d); + unsigned int src = virq_to_hw(d->irq) - mpic->err_int_vecs[0]; + + eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR); + eimr |= (1 << (31 - src)); + mpic_fsl_err_write(mpic->err_regs, eimr); +} + +static void fsl_mpic_unmask_err(struct irq_data *d) +{ + u32 eimr; + struct mpic *mpic = irq_data_get_irq_chip_data(d); + unsigned int src = virq_to_hw(d->irq) - mpic->err_int_vecs[0]; + + eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR); + eimr &= ~(1 << (31 - src)); + mpic_fsl_err_write(mpic->err_regs, eimr); +} + +static struct irq_chip fsl_mpic_err_chip = { + .irq_disable = fsl_mpic_mask_err, + .irq_mask = fsl_mpic_mask_err, + .irq_unmask = fsl_mpic_unmask_err, +}; + +int mpic_setup_error_int(struct mpic *mpic, int intvec) +{ + int i; + + mpic->err_regs = ioremap(mpic->paddr + MPIC_ERR_INT_BASE, 0x1000); + if (!mpic->err_regs) { + pr_err("could not map mpic error registers\n"); + return -ENOMEM; + } + mpic->hc_err = fsl_mpic_err_chip; + mpic->hc_err.name = mpic->name; + mpic->flags |= MPIC_FSL_HAS_EIMR; + /* allocate interrupt vectors for error interrupts */ + for (i = MPIC_MAX_ERR - 1; i >= 0; i--) + mpic->err_int_vecs[i] = --intvec; + + return 0; +} + +int mpic_map_error_int(struct mpic *mpic, unsigned int virq, irq_hw_number_t hw) +{ + if ((mpic->flags & MPIC_FSL_HAS_EIMR) && + (hw >= mpic->err_int_vecs[0] && + hw <= mpic->err_int_vecs[MPIC_MAX_ERR - 1])) { + WARN_ON(mpic->flags & MPIC_SECONDARY); + + pr_debug("mpic: mapping as Error Interrupt\n"); + irq_set_chip_data(virq, mpic); + irq_set_chip_and_handler(virq, &mpic->hc_err, + handle_level_irq); + return 1; + } + + return 0; +} + +static irqreturn_t fsl_error_int_handler(int irq, void *data) +{ + struct mpic *mpic = (struct mpic *) data; + u32 eisr, eimr; + int errint; + unsigned int cascade_irq; + + eisr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EISR); + eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR); + + if (!(eisr & ~eimr)) + return IRQ_NONE; + + while (eisr) { + errint = __builtin_clz(eisr); + cascade_irq = irq_linear_revmap(mpic->irqhost, + mpic->err_int_vecs[errint]); + WARN_ON(cascade_irq == NO_IRQ); + if (cascade_irq != NO_IRQ) { + generic_handle_irq(cascade_irq); + } else { + eimr |= 1 << (31 - errint); + mpic_fsl_err_write(mpic->err_regs, eimr); + } + eisr &= ~(1 << (31 - errint)); + } + + return IRQ_HANDLED; +} + +void mpic_err_int_init(struct mpic *mpic, irq_hw_number_t irqnum) +{ + unsigned int virq; + int ret; + + virq = irq_create_mapping(mpic->irqhost, irqnum); + if (virq == NO_IRQ) { + pr_err("Error interrupt setup failed\n"); + return; + } + + /* Mask all error interrupts */ + mpic_fsl_err_write(mpic->err_regs, ~0); + + ret = request_irq(virq, fsl_error_int_handler, IRQF_NO_THREAD, + "mpic-error-int", mpic); + if (ret) + pr_err("Failed to register error interrupt handler\n"); +} diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index c37f461..ffb93ae 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -38,15 +38,15 @@ static int fsl_pcie_bus_fixup, is_mpc83xx_pci; static void __devinit quirk_fsl_pcie_header(struct pci_dev *dev) { - u8 progif; + u8 hdr_type; /* if we aren't a PCIe don't bother */ if (!pci_find_capability(dev, PCI_CAP_ID_EXP)) return; /* if we aren't in host mode don't bother */ - pci_read_config_byte(dev, PCI_CLASS_PROG, &progif); - if (progif & 0x1) + pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr_type); + if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE) return; dev->class = PCI_CLASS_BRIDGE_PCI << 8; @@ -143,18 +143,20 @@ static void __init setup_pci_atmu(struct pci_controller *hose, pr_debug("PCI memory map start 0x%016llx, size 0x%016llx\n", (u64)rsrc->start, (u64)resource_size(rsrc)); - if (of_device_is_compatible(hose->dn, "fsl,qoriq-pcie-v2.2")) { - win_idx = 2; - start_idx = 0; - end_idx = 3; - } - pci = ioremap(rsrc->start, resource_size(rsrc)); if (!pci) { dev_err(hose->parent, "Unable to map ATMU registers\n"); return; } + if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { + if (in_be32(&pci->block_rev1) >= PCIE_IP_REV_2_2) { + win_idx = 2; + start_idx = 0; + end_idx = 3; + } + } + /* Disable all windows (except powar0 since it's ignored) */ for(i = 1; i < 5; i++) out_be32(&pci->pow[i].powar, 0); @@ -425,7 +427,7 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary) struct pci_controller *hose; struct resource rsrc; const int *bus_range; - u8 progif; + u8 hdr_type, progif; if (!of_device_is_available(dev)) { pr_warning("%s: disabled\n", dev->full_name); @@ -457,15 +459,17 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary) setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4, PPC_INDIRECT_TYPE_BIG_ENDIAN); - early_read_config_byte(hose, 0, 0, PCI_CLASS_PROG, &progif); - if ((progif & 1) == 1) { - /* unmap cfg_data & cfg_addr separately if not on same page */ - if (((unsigned long)hose->cfg_data & PAGE_MASK) != - ((unsigned long)hose->cfg_addr & PAGE_MASK)) - iounmap(hose->cfg_data); - iounmap(hose->cfg_addr); - pcibios_free_controller(hose); - return -ENODEV; + if (early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) { + /* For PCIE read HEADER_TYPE to identify controler mode */ + early_read_config_byte(hose, 0, 0, PCI_HEADER_TYPE, &hdr_type); + if ((hdr_type & 0x7f) != PCI_HEADER_TYPE_BRIDGE) + goto no_bridge; + + } else { + /* For PCI read PROG to identify controller mode */ + early_read_config_byte(hose, 0, 0, PCI_CLASS_PROG, &progif); + if ((progif & 1) == 1) + goto no_bridge; } setup_pci_cmd(hose); @@ -494,6 +498,15 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary) setup_pci_atmu(hose, &rsrc); return 0; + +no_bridge: + /* unmap cfg_data & cfg_addr separately if not on same page */ + if (((unsigned long)hose->cfg_data & PAGE_MASK) != + ((unsigned long)hose->cfg_addr & PAGE_MASK)) + iounmap(hose->cfg_data); + iounmap(hose->cfg_addr); + pcibios_free_controller(hose); + return -ENODEV; } #endif /* CONFIG_FSL_SOC_BOOKE || CONFIG_PPC_86xx */ @@ -818,6 +831,7 @@ static const struct of_device_id pci_ids[] = { { .compatible = "fsl,p1010-pcie", }, { .compatible = "fsl,p1023-pcie", }, { .compatible = "fsl,p4080-pcie", }, + { .compatible = "fsl,qoriq-pcie-v2.4", }, { .compatible = "fsl,qoriq-pcie-v2.3", }, { .compatible = "fsl,qoriq-pcie-v2.2", }, {}, @@ -825,57 +839,80 @@ static const struct of_device_id pci_ids[] = { struct device_node *fsl_pci_primary; -void __devinit fsl_pci_init(void) +void fsl_pci_assign_primary(void) { - int ret; - struct device_node *node; - struct pci_controller *hose; - dma_addr_t max = 0xffffffff; + struct device_node *np; /* Callers can specify the primary bus using other means. */ - if (!fsl_pci_primary) { - /* If a PCI host bridge contains an ISA node, it's primary. */ - node = of_find_node_by_type(NULL, "isa"); - while ((fsl_pci_primary = of_get_parent(node))) { - of_node_put(node); - node = fsl_pci_primary; - - if (of_match_node(pci_ids, node)) - break; - } + if (fsl_pci_primary) + return; + + /* If a PCI host bridge contains an ISA node, it's primary. */ + np = of_find_node_by_type(NULL, "isa"); + while ((fsl_pci_primary = of_get_parent(np))) { + of_node_put(np); + np = fsl_pci_primary; + + if (of_match_node(pci_ids, np) && of_device_is_available(np)) + return; } - node = NULL; - for_each_node_by_type(node, "pci") { - if (of_match_node(pci_ids, node)) { - /* - * If there's no PCI host bridge with ISA, arbitrarily - * designate one as primary. This can go away once - * various bugs with primary-less systems are fixed. - */ - if (!fsl_pci_primary) - fsl_pci_primary = node; - - ret = fsl_add_bridge(node, fsl_pci_primary == node); - if (ret == 0) { - hose = pci_find_hose_for_OF_device(node); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); - } + /* + * If there's no PCI host bridge with ISA, arbitrarily + * designate one as primary. This can go away once + * various bugs with primary-less systems are fixed. + */ + for_each_matching_node(np, pci_ids) { + if (of_device_is_available(np)) { + fsl_pci_primary = np; + of_node_put(np); + return; } } +} +static int __devinit fsl_pci_probe(struct platform_device *pdev) +{ + int ret; + struct device_node *node; #ifdef CONFIG_SWIOTLB - /* - * if we couldn't map all of DRAM via the dma windows - * we need SWIOTLB to handle buffers located outside of - * dma capable memory region - */ - if (memblock_end_of_DRAM() - 1 > max) { - ppc_swiotlb_enable = 1; - set_pci_dma_ops(&swiotlb_dma_ops); - ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; + struct pci_controller *hose; +#endif + + node = pdev->dev.of_node; + ret = fsl_add_bridge(node, fsl_pci_primary == node); + +#ifdef CONFIG_SWIOTLB + if (ret == 0) { + hose = pci_find_hose_for_OF_device(pdev->dev.of_node); + + /* + * if we couldn't map all of DRAM via the dma windows + * we need SWIOTLB to handle buffers located outside of + * dma capable memory region + */ + if (memblock_end_of_DRAM() - 1 > hose->dma_window_base_cur + + hose->dma_window_size) + ppc_swiotlb_enable = 1; } #endif + + mpc85xx_pci_err_probe(pdev); + + return 0; +} + +static struct platform_driver fsl_pci_driver = { + .driver = { + .name = "fsl-pci", + .of_match_table = pci_ids, + }, + .probe = fsl_pci_probe, +}; + +static int __init fsl_pci_init(void) +{ + return platform_driver_register(&fsl_pci_driver); } +arch_initcall(fsl_pci_init); #endif diff --git a/arch/powerpc/sysdev/fsl_pci.h b/arch/powerpc/sysdev/fsl_pci.h index baa0fd1..d078537 100644 --- a/arch/powerpc/sysdev/fsl_pci.h +++ b/arch/powerpc/sysdev/fsl_pci.h @@ -16,6 +16,7 @@ #define PCIE_LTSSM 0x0404 /* PCIE Link Training and Status */ #define PCIE_LTSSM_L0 0x16 /* L0 state */ +#define PCIE_IP_REV_2_2 0x02080202 /* PCIE IP block version Rev2.2 */ #define PIWAR_EN 0x80000000 /* Enable */ #define PIWAR_PF 0x20000000 /* prefetch */ #define PIWAR_TGI_LOCAL 0x00f00000 /* target - local memory */ @@ -57,7 +58,9 @@ struct ccsr_pci { __be32 pex_pme_mes_disr; /* 0x.024 - PCIE PME and message disable register */ __be32 pex_pme_mes_ier; /* 0x.028 - PCIE PME and message interrupt enable register */ __be32 pex_pmcr; /* 0x.02c - PCIE power management command register */ - u8 res3[3024]; + u8 res3[3016]; + __be32 block_rev1; /* 0x.bf8 - PCIE Block Revision register 1 */ + __be32 block_rev2; /* 0x.bfc - PCIE Block Revision register 2 */ /* PCI/PCI Express outbound window 0-4 * Window 0 is the default window and is the only window enabled upon reset. @@ -95,10 +98,19 @@ u64 fsl_pci_immrbar_base(struct pci_controller *hose); extern struct device_node *fsl_pci_primary; -#ifdef CONFIG_FSL_PCI -void fsl_pci_init(void); +#ifdef CONFIG_PCI +void fsl_pci_assign_primary(void); #else -static inline void fsl_pci_init(void) {} +static inline void fsl_pci_assign_primary(void) {} +#endif + +#ifdef CONFIG_EDAC_MPC85XX +int mpc85xx_pci_err_probe(struct platform_device *op); +#else +static inline int mpc85xx_pci_err_probe(struct platform_device *op) +{ + return -ENOTSUPP; +} #endif #endif /* __POWERPC_FSL_PCI_H */ diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index bfc6211..9c6e535 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -6,7 +6,7 @@ * with various broken implementations of this HW. * * Copyright (C) 2004 Benjamin Herrenschmidt, IBM Corp. - * Copyright 2010-2011 Freescale Semiconductor, Inc. + * Copyright 2010-2012 Freescale Semiconductor, Inc. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive @@ -221,24 +221,24 @@ static inline void _mpic_ipi_write(struct mpic *mpic, unsigned int ipi, u32 valu _mpic_write(mpic->reg_type, &mpic->gregs, offset, value); } -static inline u32 _mpic_tm_read(struct mpic *mpic, unsigned int tm) +static inline unsigned int mpic_tm_offset(struct mpic *mpic, unsigned int tm) { - unsigned int offset = MPIC_INFO(TIMER_VECTOR_PRI) + - ((tm & 3) * MPIC_INFO(TIMER_STRIDE)); + return (tm >> 2) * MPIC_TIMER_GROUP_STRIDE + + (tm & 3) * MPIC_INFO(TIMER_STRIDE); +} - if (tm >= 4) - offset += 0x1000 / 4; +static inline u32 _mpic_tm_read(struct mpic *mpic, unsigned int tm) +{ + unsigned int offset = mpic_tm_offset(mpic, tm) + + MPIC_INFO(TIMER_VECTOR_PRI); return _mpic_read(mpic->reg_type, &mpic->tmregs, offset); } static inline void _mpic_tm_write(struct mpic *mpic, unsigned int tm, u32 value) { - unsigned int offset = MPIC_INFO(TIMER_VECTOR_PRI) + - ((tm & 3) * MPIC_INFO(TIMER_STRIDE)); - - if (tm >= 4) - offset += 0x1000 / 4; + unsigned int offset = mpic_tm_offset(mpic, tm) + + MPIC_INFO(TIMER_VECTOR_PRI); _mpic_write(mpic->reg_type, &mpic->tmregs, offset, value); } @@ -1026,6 +1026,9 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq, return 0; } + if (mpic_map_error_int(mpic, virq, hw)) + return 0; + if (hw >= mpic->num_sources) return -EINVAL; @@ -1085,7 +1088,16 @@ static int mpic_host_xlate(struct irq_domain *h, struct device_node *ct, */ switch (intspec[2]) { case 0: - case 1: /* no EISR/EIMR support for now, treat as shared IRQ */ + break; + case 1: + if (!(mpic->flags & MPIC_FSL_HAS_EIMR)) + break; + + if (intspec[3] >= ARRAY_SIZE(mpic->err_int_vecs)) + return -EINVAL; + + *out_hwirq = mpic->err_int_vecs[intspec[3]]; + break; case 2: if (intspec[0] >= ARRAY_SIZE(mpic->ipi_vecs)) @@ -1301,6 +1313,42 @@ struct mpic * __init mpic_alloc(struct device_node *node, mpic_map(mpic, mpic->paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000); mpic_map(mpic, mpic->paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000); + if (mpic->flags & MPIC_FSL) { + u32 brr1, version; + int ret; + + /* + * Yes, Freescale really did put global registers in the + * magic per-cpu area -- and they don't even show up in the + * non-magic per-cpu copies that this driver normally uses. + */ + mpic_map(mpic, mpic->paddr, &mpic->thiscpuregs, + MPIC_CPU_THISBASE, 0x1000); + + brr1 = _mpic_read(mpic->reg_type, &mpic->thiscpuregs, + MPIC_FSL_BRR1); + version = brr1 & MPIC_FSL_BRR1_VER; + + /* Error interrupt mask register (EIMR) is required for + * handling individual device error interrupts. EIMR + * was added in MPIC version 4.1. + * + * Over here we reserve vector number space for error + * interrupt vectors. This space is stolen from the + * global vector number space, as in case of ipis + * and timer interrupts. + * + * Available vector space = intvec_top - 12, where 12 + * is the number of vectors which have been consumed by + * ipis and timer interrupts. + */ + if (version >= 0x401) { + ret = mpic_setup_error_int(mpic, intvec_top - 12); + if (ret) + return NULL; + } + } + /* Reset */ /* When using a device-node, reset requests are only honored if the MPIC @@ -1440,6 +1488,7 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, void __init mpic_init(struct mpic *mpic) { int i, cpu; + int num_timers = 4; BUG_ON(mpic->num_sources == 0); @@ -1448,15 +1497,34 @@ void __init mpic_init(struct mpic *mpic) /* Set current processor priority to max */ mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), 0xf); + if (mpic->flags & MPIC_FSL) { + u32 brr1 = _mpic_read(mpic->reg_type, &mpic->thiscpuregs, + MPIC_FSL_BRR1); + u32 version = brr1 & MPIC_FSL_BRR1_VER; + + /* + * Timer group B is present at the latest in MPIC 3.1 (e.g. + * mpc8536). It is not present in MPIC 2.0 (e.g. mpc8544). + * I don't know about the status of intermediate versions (or + * whether they even exist). + */ + if (version >= 0x0301) + num_timers = 8; + } + + /* FSL mpic error interrupt intialization */ + if (mpic->flags & MPIC_FSL_HAS_EIMR) + mpic_err_int_init(mpic, MPIC_FSL_ERR_INT); + /* Initialize timers to our reserved vectors and mask them for now */ - for (i = 0; i < 4; i++) { + for (i = 0; i < num_timers; i++) { + unsigned int offset = mpic_tm_offset(mpic, i); + mpic_write(mpic->tmregs, - i * MPIC_INFO(TIMER_STRIDE) + - MPIC_INFO(TIMER_DESTINATION), + offset + MPIC_INFO(TIMER_DESTINATION), 1 << hard_smp_processor_id()); mpic_write(mpic->tmregs, - i * MPIC_INFO(TIMER_STRIDE) + - MPIC_INFO(TIMER_VECTOR_PRI), + offset + MPIC_INFO(TIMER_VECTOR_PRI), MPIC_VECPRI_MASK | (9 << MPIC_VECPRI_PRIORITY_SHIFT) | (mpic->timer_vecs[0] + i)); diff --git a/arch/powerpc/sysdev/mpic.h b/arch/powerpc/sysdev/mpic.h index 13f3e89..24bf07a 100644 --- a/arch/powerpc/sysdev/mpic.h +++ b/arch/powerpc/sysdev/mpic.h @@ -40,4 +40,26 @@ extern int mpic_set_affinity(struct irq_data *d, const struct cpumask *cpumask, bool force); extern void mpic_reset_core(int cpu); +#ifdef CONFIG_FSL_SOC +extern int mpic_map_error_int(struct mpic *mpic, unsigned int virq, irq_hw_number_t hw); +extern void mpic_err_int_init(struct mpic *mpic, irq_hw_number_t irqnum); +extern int mpic_setup_error_int(struct mpic *mpic, int intvec); +#else +static inline int mpic_map_error_int(struct mpic *mpic, unsigned int virq, irq_hw_number_t hw) +{ + return 0; +} + + +static inline void mpic_err_int_init(struct mpic *mpic, irq_hw_number_t irqnum) +{ + return; +} + +static inline int mpic_setup_error_int(struct mpic *mpic, int intvec) +{ + return -1; +} +#endif + #endif /* _POWERPC_SYSDEV_MPIC_H */ diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 9b49c65e..3a56a63 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -60,6 +60,8 @@ static cpumask_t cpus_in_xmon = CPU_MASK_NONE; static unsigned long xmon_taken = 1; static int xmon_owner; static int xmon_gate; +#else +#define xmon_owner 0 #endif /* CONFIG_SMP */ static unsigned long in_xmon __read_mostly = 0; @@ -202,7 +204,13 @@ Commands:\n\ di dump instructions\n\ df dump float values\n\ dd dump double values\n\ - dl dump the kernel log buffer\n\ + dl dump the kernel log buffer\n" +#ifdef CONFIG_PPC64 + "\ + dp[#] dump paca for current cpu, or cpu #\n\ + dpa dump paca for all possible cpus\n" +#endif + "\ dr dump stream of raw bytes\n\ e print exception information\n\ f flush cache\n\ @@ -740,7 +748,7 @@ static void insert_bpts(void) static void insert_cpu_bpts(void) { if (dabr.enabled) - set_dabr(dabr.address | (dabr.enabled & 7)); + set_dabr(dabr.address | (dabr.enabled & 7), DABRX_ALL); if (iabr && cpu_has_feature(CPU_FTR_IABR)) mtspr(SPRN_IABR, iabr->address | (iabr->enabled & (BP_IABR|BP_IABR_TE))); @@ -768,7 +776,7 @@ static void remove_bpts(void) static void remove_cpu_bpts(void) { - set_dabr(0); + set_dabr(0, 0); if (cpu_has_feature(CPU_FTR_IABR)) mtspr(SPRN_IABR, 0); } @@ -2009,6 +2017,95 @@ static void xmon_rawdump (unsigned long adrs, long ndump) printf("\n"); } +#ifdef CONFIG_PPC64 +static void dump_one_paca(int cpu) +{ + struct paca_struct *p; + + if (setjmp(bus_error_jmp) != 0) { + printf("*** Error dumping paca for cpu 0x%x!\n", cpu); + return; + } + + catch_memory_errors = 1; + sync(); + + p = &paca[cpu]; + + printf("paca for cpu 0x%x @ %p:\n", cpu, p); + + printf(" %-*s = %s\n", 16, "possible", cpu_possible(cpu) ? "yes" : "no"); + printf(" %-*s = %s\n", 16, "present", cpu_present(cpu) ? "yes" : "no"); + printf(" %-*s = %s\n", 16, "online", cpu_online(cpu) ? "yes" : "no"); + +#define DUMP(paca, name, format) \ + printf(" %-*s = %#-*"format"\t(0x%lx)\n", 16, #name, 18, paca->name, \ + offsetof(struct paca_struct, name)); + + DUMP(p, lock_token, "x"); + DUMP(p, paca_index, "x"); + DUMP(p, kernel_toc, "lx"); + DUMP(p, kernelbase, "lx"); + DUMP(p, kernel_msr, "lx"); +#ifdef CONFIG_PPC_STD_MMU_64 + DUMP(p, stab_real, "lx"); + DUMP(p, stab_addr, "lx"); +#endif + DUMP(p, emergency_sp, "p"); + DUMP(p, data_offset, "lx"); + DUMP(p, hw_cpu_id, "x"); + DUMP(p, cpu_start, "x"); + DUMP(p, kexec_state, "x"); + DUMP(p, __current, "p"); + DUMP(p, kstack, "lx"); + DUMP(p, stab_rr, "lx"); + DUMP(p, saved_r1, "lx"); + DUMP(p, trap_save, "x"); + DUMP(p, soft_enabled, "x"); + DUMP(p, irq_happened, "x"); + DUMP(p, io_sync, "x"); + DUMP(p, irq_work_pending, "x"); + DUMP(p, nap_state_lost, "x"); + +#undef DUMP + + catch_memory_errors = 0; + sync(); +} + +static void dump_all_pacas(void) +{ + int cpu; + + if (num_possible_cpus() == 0) { + printf("No possible cpus, use 'dp #' to dump individual cpus\n"); + return; + } + + for_each_possible_cpu(cpu) + dump_one_paca(cpu); +} + +static void dump_pacas(void) +{ + unsigned long num; + int c; + + c = inchar(); + if (c == 'a') { + dump_all_pacas(); + return; + } + + termch = c; /* Put c back, it wasn't 'a' */ + + if (scanhex(&num)) + dump_one_paca(num); + else + dump_one_paca(xmon_owner); +} +#endif + #define isxdigit(c) (('0' <= (c) && (c) <= '9') \ || ('a' <= (c) && (c) <= 'f') \ || ('A' <= (c) && (c) <= 'F')) @@ -2018,6 +2115,14 @@ dump(void) int c; c = inchar(); + +#ifdef CONFIG_PPC64 + if (c == 'p') { + dump_pacas(); + return; + } +#endif + if ((isxdigit(c) && c != 'f' && c != 'd') || c == '\n') termch = c; scanhex((void *)&adrs); |
