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* Disintegrate asm/system.h for PowerPCDavid Howells2012-03-281-1/+0
| | | | | | | | Disintegrate asm/system.h for PowerPC. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> cc: linuxppc-dev@lists.ozlabs.org
* powerpc/powermac: Add missing of_node_putJulia Lawall2011-11-251-2/+6
| | | | | | | | | | | | | | | | | | | | | | | np is initialized to the result of calling a function that calls of_node_get, so of_node_put should be called before the pointer is dropped. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e,e1,e2; @@ * e = \(of_find_node_by_type\|of_find_node_by_name\)(...) ... when != of_node_put(e) when != true e == NULL when != e2 = e e = e1 // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: add export.h to files making use of EXPORT_SYMBOLPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* powerpc: Move free_initmem to common codeDave Carroll2011-06-301-3/+0
| | | | | | | | | | | | | | | | | | The free_initmem function is basically duplicated in mm/init_32, and init_64, and is moved to the common 32/64-bit mm/mem.c. All other sections except init were removed in v2.6.15 by 6c45ab992e4299c869fb26427944a8f8ea177024 (powerpc: Remove section free() and linker script bits), and therefore the bulk of the executed code is identical. This patch also removes updating ppc_md.progress to NULL in the powermac late_initcall. Suggested-by: Milton Miller <miltonm@bga.com> Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Carroll <dcarroll@astekcorp.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pmac/smp: Consolidate 32-bit and 64-bit PowerMac cpu_die in one fileBenjamin Herrenschmidt2011-04-011-56/+0
| | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/powermac: Make auto-loading of therm_pm72 possibleMarc Zyngier2010-12-091-0/+9
| | | | | | | | | | | | | | | | | | | | | The therm_pm72 driver, used on the PowerMac G5 range, cannot be auto-loaded, since the driver itself creates both the device node and the driver instance. Moving the device node creation to the platform setup code and adding the necessary MODULE_DEVICE_TABLE() information allows the driver to be automatically loaded by udev on any semi-modern distribution. It "fixes" a major source of problem on G5 machines where the driver wasn't explicitely loaded by default, and the system would automatically shutdown under load. Tested on an Xserve G5. Signed-off-by: Marc Zyngier <maz@misterjones.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* lmb: rename to memblockYinghai Lu2010-07-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | via following scripts FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/lmb/memblock/g' \ -e 's/LMB/MEMBLOCK/g' \ $FILES for N in $(find . -name lmb.[ch]); do M=$(echo $N | sed 's/lmb/memblock/g') mv $N $M done and remove some wrong change like lmbench and dlmb etc. also move memblock.c from lib/ to mm/ Suggested-by: Ingo Molnar <mingo@elte.hu> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Use common cpu_die (fixes SMP+SUSPEND build)Milton Miller2010-05-211-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | Configuring a powerpc 32 bit kernel for both SMP and SUSPEND turns on CPU_HOTPLUG to enable disable_nonboot_cpus to be called by the common suspend code. Previously the definition of cpu_die for ppc32 was in the powermac platform code, causing it to be undefined if that platform as not selected. arch/powerpc/kernel/built-in.o: In function 'cpu_idle': arch/powerpc/kernel/idle.c:98: undefined reference to 'cpu_die' Move the code from setup_64 to smp.c and rename the power mac versions to their specific names. Note that this does not setup the cpu_die pointers in either smp_ops (request a given cpu die) or ppc_md (make this cpu die), for other platforms but there are generic versions in smp.c. Reported-by: Matt Sealey <matt@genesi-usa.com> Reported-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/cpumask: Update some commentsAnton Blanchard2010-05-061-1/+1
| | | | | | | | Since the *_map cpumask variants are deprecated, change the comments to instead refer to *_mask. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* powerpc/pmac: Fix issues with PowerMac "PowerSurge" SMPBenjamin Herrenschmidt2009-06-261-33/+8
| | | | | | | | | | | | | | | The old PowerSurge SMP (ie, dual or quad 604 machines) code has numerous issues in modern world. One is cpu_possible_map is set too late (the device-tree is bogus) so we fail to allocate the interrupt stacks and crash. Another problem is the fact the timebase is frozen by the bringup of the second CPU so the delays in the generic code will hang, we need to move some of the calling procedure to inside the powermac code. This makes it boot again for me Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by powermac platformsKumar Gala2009-05-211-1/+1
| | | | | | | | We shouldn't directly access sysdata to get the device node but call pci_bus_to_OF_node() for this purpose. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/powermac: Hotplug /sys entries are missingGiuliano Pochini2009-02-231-0/+3
| | | | | | | | | | | On Wed, 18 Feb 2009 22:18:21 +0100 Giuliano Pochini <pochini@shiny.it> wrote: Since 2.6.28, /sys/devices/system/cpu/cpu*/online don't exist anymore on 32-bit PowerMacs due to change in the generic powerpc code. Signed-off-by: Giuliano Pochini <pochini@shiny.it> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Remove default kexec/crash_kernel ops assignmentsAnton Vorontsov2008-12-231-6/+0
| | | | | | | Default ops are implicit now. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc/pmac: Use of_find_node_with_property() in pmac_setup_arch()Michael Ellerman2008-11-191-3/+1
| | | | | | Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Remove asm/a.out.h files for all architectures without a.out support.Adrian Bunk2008-09-061-1/+0
| | | | | | | | | | This patch also includes the required removal of (unused) inclusion of <asm/a.out.h> <linux/a.out.h>'s in the arch/ code for these architectures. [dwmw2: updated for 2.6.27-rc] Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* powerpc/powermac: Fixup default serial port device for pmac_zilogBenjamin Herrenschmidt2008-07-281-0/+72
| | | | | | | | This removes the non-working code in legacy_serial that tried to handle the powermac SCC ports, and instead add a (now working) function to the powermac platform code to find the default serial console if any. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* kgdb, powerpc: arch specific powerpc kgdb supportJason Wessel2008-07-231-6/+0
| | | | | | | | | | | | | | | | | This patch removes the old kgdb reminants from ARCH=powerpc and implements the new style arch specific stub for the common kgdb core interface. It is possible to have xmon and kgdb in the same kernel, but you cannot use both at the same time because there is only one set of debug hooks. The arch specific kgdb implementation saves the previous state of the debug hooks and restores them if you unconfigure the kgdb I/O driver. Kgdb should have no impact on a kernel that has no kgdb I/O driver configured. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
* [POWERPC] Fix building of pmac32 when CONFIG_NVRAM=mTony Breeds2008-04-291-1/+2
| | | | | | | | | | | | | | | | | Kamalesh Babulal (kamalesh@linux.vnet.ibm.com) reports that CONFIG_NVRAM=m is valid in terms of Kconfig but fails to build with: Building modules, stage 2. MODPOST 1401 modules ERROR: "pmac_newworld" [arch/powerpc/platforms/powermac/nvram.ko] undefined! ERROR: "__alloc_bootmem" [arch/powerpc/platforms/powermac/nvram.ko] undefined! make[1]: *** [__modpost] Error The arch/powerpc/platforms/powermac/nvram.c code really needs to be builtin, but as its compilation is dependent on a generic Kconfig symbol we force nvram.c to be builtin if CONFIG_NVRAM is 'y' or 'm'. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'master' of ↵Linus Torvalds2008-04-211-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits) [POWERPC] Fix compile breakage for 64-bit UP configs [POWERPC] Define copy_siginfo_from_user32 [POWERPC] Add compat handler for PTRACE_GETSIGINFO [POWERPC] i2c: Fix build breakage introduced by OF helpers [POWERPC] Optimize fls64() on 64-bit processors [POWERPC] irqtrace support for 64-bit powerpc [POWERPC] Stacktrace support for lockdep [POWERPC] Move stackframe definitions to common header [POWERPC] Fix device-tree locking vs. interrupts [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const [POWERPC] Remove unused __max_memory variable [POWERPC] Simplify xics direct/lpar irq_host setup [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ() [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade() [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c [POWERPC] Use asm-generic/bitops/find.h in bitops.h [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup [POWERPC] 85xx: Fix the size of qe muram for MPC8568E [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier. [POWERPC] 86xx: mark functions static, other minor cleanups ...
| * [LIB]: Make PowerPC LMB code generic so sparc64 can use it too.David S. Miller2008-02-131-1/+1
| | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | ppc/pmac: remove ppc_ide_md hooksBartlomiej Zolnierkiewicz2008-04-181-8/+0
|/ | | | | | | | | | | | | | * Add pmac_ide_init_ports() helper and use it instead of pmac_ide_init_hwif_ports(). * Remove ppc_ide_md hooks - no need for them (IDE pmac host driver takes care of all this setup). * Then remove no longer needed <linux/ide.h> include from arch/powerpc/platforms/powermac/pmac.h. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* [POWERPC] powermac: Use machine_*_initcall() hooks in platform codeGrant Likely2008-01-171-10/+2
| | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] arch/powerpc: Remove duplicate includesLucas Woods2007-12-201-1/+0
| | | | | | | Signed-off-by: Lucas Woods <woodzy@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Enable self-view of the HT host bridge on PowerMac G5Benjamin Herrenschmidt2007-12-201-1/+3
| | | | | | | | This enables the PCI code to see the device that represents the HT host bridge on the PowerMac G5. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Clean out asm/of_{platform, device}.hJon Loeliger2007-12-061-2/+2
| | | | | | | | Convert #include of asm/of_{platform, device}.h into linux/of_{platform,device}.h for a few scattered platforms. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove unused old code from powermac setup codePaul Mackerras2007-10-091-66/+2
| | | | | | | | | | | | | | Since bootdevice never gets initialized, it's always NULL, and hence a whole pile of code in arch/powerpc/platforms/setup.c never gets used. (This was the code that originally was there so that the automatic root partition selection mechanism would prefer a rootish-looking partition on the device that OF loaded the kernel from over a similar partition on other devices.) This removes the unused code. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* [POWERPC] Remove some more section mismatch warningsStephen Rothwell2007-10-091-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WARNING: vmlinux.o(.text+0x2ff5c): Section mismatch: reference to .init.text:.pmac_find_ide_boot (between '.note_bootable_part' and '.note_scsi_host') >From holly_defconfig: WARNING: vmlinux.o(.text+0x164fe): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') WARNING: vmlinux.o(.text+0x16506): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') >From linkstation_defconfig: WARNING: vmlinux.o(.text+0x158fe): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') WARNING: vmlinux.o(.text+0x15906): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') >From mpc7448_hpc2_defconfig: WARNING: vmlinux.o(.text+0x1583e): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') WARNING: vmlinux.o(.text+0x15846): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') >From pmac32_defconfig: WARNING: vmlinux.o(.text+0x154ca): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'note_scsi_host') WARNING: vmlinux.o(.text+0x154d2): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'note_scsi_host') WARNING: vmlinux.o(.text+0x1553c): Section mismatch: reference to .init.text:pmac_find_ide_boot (between 'note_bootable_part' and 'note_scsi_host') >From ppc64_defconfig: WARNING: vmlinux.o(.text+0x3acdc): Section mismatch: reference to .init.text:.pmac_find_ide_boot (between '.note_bootable_part' and '.note_scsi_host') >From prpmc2800_defconfig: WARNING: vmlinux.o(.text+0x1611e): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') WARNING: vmlinux.o(.text+0x16126): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix powermac late initcall to only run on powermacTony Breeds2007-06-201-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Current ppc64_defconfig kernel fails to boot on iSeries, dying with: Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xc00000000071b258 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=32 iSeries <snip> NIP [c00000000071b258] .iSeries_src_init+0x34/0x64 LR [c000000000701bb4] .kernel_init+0x1fc/0x3bc Call Trace: [c000000007d0be30] [0000000000008000] 0x8000 (unreliable) [c000000007d0bea0] [c000000000701bb4] .kernel_init+0x1fc/0x3bc [c000000007d0bf90] [c0000000000262d4] .kernel_thread+0x4c/0x68 Instruction dump: e922cba8 3880ffff 78840420 f8010010 f821ff91 60000000 e8090000 78095fe3 4182002c e922cb58 e862cbb0 e9290140 <e8090000> f8410028 7c0903a6 e9690010 Kernel panic - not syncing: Attempted to kill init! This happens because some powermac code unconditionally sets ppc_md.progress to NULL. This patch makes sure the powermac late initcall is only run on powermac machines. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix per-cpu allocation on oldworld SMP powermacsPaul Mackerras2007-06-141-1/+12
| | | | | | | | | | | | The per-cpu area(a) for the secondary CPU(s) isn't getting allocated on old SMP powermacs that don't have the secondary CPU(s) listed in the device tree, as per-cpu areas are now only allocated for CPUs in the cpu_possible_map, and we aren't setting the bits for the secondary CPU(s) until smp_prepare_cpus(), which is after per-cpu allocation. Therefore this sets the bits for CPUs 1..3 in cpu_possible_map in pmac_setup_arch, so they get per-cpu data allocated. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix Section mismatch warningsLi Yang2007-05-231-1/+1
| | | | | | | | | | | This patch fix the following Section mismatch warnings in powerpc code. WARNING: arch/powerpc/platforms/built-in.o - Section mismatch: reference to .init.data:mv643xx_eth_pd_devs from .text between 'mv643xx_eth_add_pds' (at offset 0x9ed2) and 'gg2_read_config' WARNING: arch/powerpc/platforms/built-in.o - Section mismatch: reference to .init.data:mv643xx_eth_pd_devs from .text between 'mv643xx_eth_add_pds' (at offset 0x9ed6) and 'gg2_read_config' WARNING: arch/powerpc/platforms/built-in.o - Section mismatch: reference to .init.text:note_scsi_host from __ksymtab between '__ksymtab_note_scsi_host' (at offset 0x8) and '__ksymtab_sys_ctrler' Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Rename device_is_compatible to of_device_is_compatibleStephen Rothwell2007-05-071-2/+2
| | | | | | | | | | | for consistency with other Open Firmware interfaces (and Sparc). This is just a straight replacement. This leaves the compatibility define in place. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] powermac: Support G5 CPU hotplugJohannes Berg2007-05-071-2/+50
| | | | | | | | | | | | This allows "hotplugging" of CPUs on G5 machines. CPUs that are disabled are put into an idle loop with the decrementer frequency set to minimum. To wake them up again we kick them just like when bringing them up. To stop those CPUs from messing with any global state we stop them from entering the timer interrupt. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix suspend states againJohannes Berg2007-05-021-65/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 0fba3a1f39f8b0a50b56c8b068fa52131cbc84c2 (a very long time ago, May 2006), I fixed a bug that caused powermacs to crash when you tried entering standby/mem suspend states. As I'm now getting more familiar with the suspend code I notice a few more things: 1. we previously misunderstood what pm_ops is for, it isn't supposed to be for doing platform dependent suspend/resume stuff that needs to be done for suspend to disk (as we currently try to use it!), it is instead for entering platform dependent suspend states ("standby", "mem"). 2. due to the first point, we never properly save FPU and altivec states when suspending to disk. It probably hasn't hurt yet because the process that writes the "disk" to /sys/power/state uses neither and its context is used. This patch addresses these points as follows: 1. remove all pm_ops from powermac, powermac suspend to ram isn't currently usable via /sys/power/state but is done via the PMU instead. 2. move the code responsible for storing FPU/altivec state into save_processor_state and the set_context() call to restore_processor_state. 3. add a call to kernel_enable_spe() It may look like there is some code removal missing but that is actually because the new suspend.h file overrides the ppc/suspend.h one which was previously used. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Generic check_legacy_ioportOlaf Hering2007-04-271-10/+0
| | | | | | | | | | | check_legacy_ioport makes only sense on PREP, CHRP and pSeries. They may have an isa node with PS/2, parport, floppy and serial ports. Remove the check_legacy_ioport call from ppc_md, it's not needed anymore. Hardware capabilities come from the device-tree. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove old interface find_devicesStephen Rothwell2007-04-241-4/+21
| | | | | | | Replace uses with of_find_node_by_name and for_each_node_by_name. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove old interface find_type_devicesStephen Rothwell2007-04-241-2/+3
| | | | | | | Replaced by of_find_node_by_type. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Rename get_property to of_get_property: arch/powerpcStephen Rothwell2007-04-131-9/+11
| | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove unused inclusion of linux/ide.hOlaf Hering2007-04-131-1/+0
| | | | | | | | | | | | | Remove unneeded inclusion of linux/ide.h It does not compile with CONFIG_BLOCK=n. Remove asm/ide.h from ksyms file, it gets included earlier via linux/ide.h. Compile tested with all defconfig files. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] Dynamic kernel command-line: powerpcAlon Bar-Lev2007-02-121-2/+2
| | | | | | | | | | Rename saved_command_line into boot_command_line. Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [POWERPC] Merge 32 and 64 bits asm-powerpc/io.hBenjamin Herrenschmidt2006-12-041-2/+0
| | | | | | | | | | | | | powerpc: Merge 32 and 64 bits asm-powerpc/io.h The rework on io.h done for the new hookable accessors made it easier, so I just finished the work and merged 32 and 64 bits io.h for arch/powerpc. arch/ppc still uses the old version in asm-ppc, there is just too much gunk in there that I really can't be bothered trying to cleanup. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Souped-up of_platform_device supportBenjamin Herrenschmidt2006-12-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | This patch first splits of_device.c and of_platform.c, the later containing the bits relative to of_platform_device's. On the "breaks" side of things, drivers uisng of_platform_device(s) need to include asm/of_platform.h now and of_(un)register_driver is now of_(un)register_platform_driver. In addition to a few utility functions to locate of_platform_device(s), the main new addition is of_platform_bus_probe() which allows the platform code to trigger an automatic creation of of_platform_devices for a whole tree of devices. The function acts based on the type of the various "parent" devices encountered from a provided root, using either a default known list of bus types that can be "probed" or a passed-in list. It will only register devices on busses matching that list, which mean that typically, it will not register PCI devices, as expected (since they will be picked up by the PCI layer). This will be used by Cell platforms using 4xx-type IOs in the Axon bridge and can be used by any embedded-type device as well. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Make pci_read_irq_line the defaultBenjamin Herrenschmidt2006-12-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | This patch reworks the way IRQs are fixed up on PCI for arch powerpc. It makes pci_read_irq_line() called by default in the PCI code for devices that are probed, and add an optional per-device fixup in ppc_md for platforms that really need to correct what they obtain from pci_read_irq_line(). It also removes ppc_md.irq_bus_setup which was only used by pSeries and should not be needed anymore. I've also removed the pSeries s7a workaround as it can't work with the current interrupt code anyway. I'm trying to get one of these machines working so I can test a proper fix for that problem. I also haven't updated the old-style fixup code from 85xx_cds.c because it's actually buggy :) It assigns pci_dev->irq hard coded numbers which is no good with the new IRQ mapping code. It should at least use irq_create_mapping(NULL, hard_coded_number); and possibly also set_irq_type() to set them as level low. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] Clean up usage of boot_devs.hauer@pengutronix.de2006-11-131-1/+1
| | | | | | | | | | | dev_t boot_dev is declared in arch/powerpc/kernel/setup_32.c and in arch/powerpc/kernel/setup_64.c but not used in these files. It is only used in arch/powerpc/platforms/powermac/setup.c, so make it static in this file. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] powermac: Constify & voidify get_property()Jeremy Kerr2006-07-311-10/+8
| | | | | | | | | | | | | Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powermac platform & macintosh driver changes. Built for pmac32_defconfig, g5_defconfig Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add new interrupt mapping core and change platforms to use itBenjamin Herrenschmidt2006-07-031-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the new irq remapper core and removes the old one. Because there are some fundamental conflicts with the old code, like the value of NO_IRQ which I'm now setting to 0 (as per discussions with Linus), etc..., this commit also changes the relevant platform and driver code over to use the new remapper (so as not to cause difficulties later in bisecting). This patch removes the old pre-parsing of the open firmware interrupt tree along with all the bogus assumptions it made to try to renumber interrupts according to the platform. This is all to be handled by the new code now. For the pSeries XICS interrupt controller, a single remapper host is created for the whole machine regardless of how many interrupt presentation and source controllers are found, and it's set to match any device node that isn't a 8259. That works fine on pSeries and avoids having to deal with some of the complexities of split source controllers vs. presentation controllers in the pSeries device trees. The powerpc i8259 PIC driver now always requests the legacy interrupt range. It also has the feature of being able to match any device node (including NULL) if passed no device node as an input. That will help porting over platforms with broken device-trees like Pegasos who don't have a proper interrupt tree. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [POWERPC] powerpc: Initialise ppc_md htab pointers earlierMichael Ellerman2006-06-281-7/+2
| | | | | | | | | | Initialise the ppc_md htab callbacks earlier, in the probe routines. This allows us to call htab_finish_init() from htab_initialize(), and makes it private to hash_utils_64.c. Move htab_finish_init() and make_bl() above htab_initialize() to avoid forward declarations. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: add context.vdso_base for 32-bit tooPaul Mackerras2006-06-111-1/+1
| | | | | | | | This adds a vdso_base element to the mm_context_t for 32-bit compiles (both for ARCH=powerpc and ARCH=ppc). This fixes the compile errors that have been reported in arch/powerpc/kernel/signal_32.c. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] PowerMac: force only suspend-to-disk to be validJohannes Berg2006-05-261-0/+12
| | | | | | | | | | | | | | | | For a very long time, echoing 'standby' or 'mem' into /sys/power/state has killed the machine on powerpc. This patch fixes that. This patch adds the .valid callback to pm_ops on PowerMac so that only the suspend to disk state can be entered. Note that just returning 0 would suffice since the upper layers don't pass PM_SUSPEND_DISK down, but we handle it there regardless just in case that changes. Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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