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* powerpc: convert to use __HEAD and HEAD_TEXT macros.Tim Abbott2009-04-266-6/+11
| | | | | | | | | | | This has the consequence of changing the section name use for head code from ".text.head" to ".head.text". Since this commit changes all users in the architecture, this change should be harmless. Signed-off-by: Tim Abbott <tabbott@mit.edu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'merge' of ↵Linus Torvalds2009-04-2419-5360/+795
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc: Fix modular build of ide-pmac when mediabay is built in powerpc/pasemi: Fix build error on UP powerpc: Make macintosh/mediabay driver depend on CONFIG_BLOCK maintainers: Fix PS3 patterns powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warning powerpc/32: Don't clobber personality flags on exec powerpc: Fix crash on CPU hotplug powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig cover powerpc/85xx: Added SMP defconfig powerpc/85xx: Enabled a bunch of FSL specific drivers/options powerpc/85xx: Updated generic mpc85xx_defconfig powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCD fsl_rio: Pass the proper device to dma mapping routines powerpc: Fix of_node_put() exit path in of_irq_map_one() powerpc/5200: defconfig updates powerpc/5200: Add FLASH nodes to lite5200 device tree powerpc/device-tree: Document MTD nodes with multiple "reg" tuples powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-of powerpc/5200: Bring the legacy fsl_spi_platform_data hooks back
| * powerpc/pasemi: Fix build error on UPGeoff Levand2009-04-221-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A non-SMP version of smp_send_stop() is now included in smp.h. Remove the unneeded definition in the pasemi setup.c. Fixes build errors like these when CONFIG_SMP=n: arch/powerpc/platforms/pasemi/setup.c:48: error: redefinition of ‘smp_send_stop’ include/linux/smp.h:125: error: previous definition of 'smp_send_stop' was here Reported-by: subrata@linux.vnet.ibm.com Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warningGeoff Levand2009-04-221-1/+1
| | | | | | | | | | | | | | | | | | Fix build warnings like these when CONFIG_PS3_FLASH=n: arch/powerpc/platforms/ps3/os-area.c: warning: 'update_flash_db' defined but not used Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/32: Don't clobber personality flags on execAndreas Schwab2009-04-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | Now that ppc32 implements address randomization it also wants to inherit personality flags like ADDR_NO_RANDOMIZE across exec, for things like `setarch ppc -R' to work. But the ppc32 version of SET_PERSONALITY forcefully sets PER_LINUX, clearing all personality flags. So be careful about preserving the flags. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Fix crash on CPU hotplugMichael Ellerman2009-04-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | early_init_mmu_secondary() is called at CPU hotplug time, so it must be marked as __cpuinit, not __init. Caused by 757c74d2 ("powerpc/mm: Introduce early_init_mmu() on 64-bit"). Tested-by: Sachin Sant <sachinp@in.ibm.com> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 into mergePaul Mackerras2009-04-2218-147/+494
| |\
| | * powerpc: Fix of_node_put() exit path in of_irq_map_one()Ilpo Järvinen2009-04-201-6/+5
| | | | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| | * powerpc/5200: defconfig updatesGrant Likely2009-04-206-125/+428
| | | | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| | * powerpc/5200: Add FLASH nodes to lite5200 device treeGrant Likely2009-04-161-0/+39
| | | | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig coverKumar Gala2009-04-214-6707/+0
| | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/85xx: Added SMP defconfigKumar Gala2009-04-211-0/+1829
| | | | | | | | | | | | | | | | | | | | | | | | | | | Since the vast majority of 85xx platforms are UP we introduce a new SMP config for the few platforms that have more than one core. Beyond CONFIG_SMP=y and its dependencies this should be identical to mpc85xx_defconfig. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/85xx: Enabled a bunch of FSL specific drivers/optionsKumar Gala2009-04-211-16/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add new 85xx boards * Added QE/FSL gpio * Enabled PHY drivers that exist on various boards * Enabled FS_ENET & UCC ethernet drivers (CPM2 & QE) * FSL HW Crypto Engine * CPM I2C * QE Serial Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/85xx: Updated generic mpc85xx_defconfigKumar Gala2009-04-211-125/+88
| | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCDTimur Tabi2009-04-211-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ULI 1575 PCI quirk function for the Freescale MPC8610 HPCD was disabling the SATA INTx interrupt, even when SATA support was enabled. This was safe, because the SATA driver re-enabled it. But with commit a5bfc471 ("ahci: drop intx manipulation on msi enable"), the driver no longer does this, and so SATA support on the 8610 HPCD is broken. The original quirk function disabled INTx because it caused some other interrupt problem during early development on this board, but no one remembers any more what that problem was, and it doesn't seem to occur any more. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | fsl_rio: Pass the proper device to dma mapping routinesAnton Vorontsov2009-04-211-11/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver should pass a device that specifies internal DMA ops, but currently NULL pointer is passed, therefore following bug appears during boot up: ------------[ cut here ]------------ Kernel BUG at c0018a7c [verbose debug info unavailable] Oops: Exception in kernel mode, sig: 5 [#1] [...] NIP [c0018a7c] fsl_rio_doorbell_init+0x34/0x60 LR [c0018a70] fsl_rio_doorbell_init+0x28/0x60 Call Trace: [ef82bda0] [c0018a70] fsl_rio_doorbell_init+0x28/0x60 (unreliable) [ef82bdc0] [c0019160] fsl_rio_setup+0x6b8/0x84c [ef82be20] [c02d28ac] fsl_of_rio_rpn_probe+0x30/0x50 [ef82be40] [c0234f20] of_platform_device_probe+0x5c/0x84 [...] ---[ end trace 561bb236c800851f ]--- This patch fixes the issue. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | clocksource: pass clocksource to read() callbackMagnus Damm2009-04-211-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'merge' of ↵Linus Torvalds2009-04-1516-144/+105
|\ \ \ | |/ / | | / | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc: pseries/dtl.c should include asm/firmware.h powerpc: Fix data-corrupting bug in __futex_atomic_op powerpc/pseries: Set error_state to pci_channel_io_normal in eeh_report_reset() powerpc: Allow 256kB pages with SHMEM powerpc: Document new FSL I2C bindings and cleanup powerpc/mm: Fix compile warning powerpc/85xx: TQM8548: update defconfig powerpc/85xx: TQM8548: use proper phy-handles for enet2 and enet3 powerpc/85xx: TQM85xx: correct address of LM75 I2C device nodes powerpc: Add support for early tlbilx opcode powerpc: Fix tlbilx opcode
| * powerpc: pseries/dtl.c should include asm/firmware.hSachin Sant2009-04-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | A randconfig build on powerpc failed with: dtl.c: In function 'dtl_init': dtl.c:238: error: implicit declaration of function 'firmware_has_feature' dtl.c:238: error: 'FW_FEATURE_SPLPAR' undeclared (first use in this function) - We need firmware.h for these definitions. Signed-off-by: Sachin Sant <sachinp@in.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Fix data-corrupting bug in __futex_atomic_opPaul Mackerras2009-04-151-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Richard Henderson pointed out that the powerpc __futex_atomic_op has a bug: it will write the wrong value if the stwcx. fails and it has to retry the lwarx/stwcx. loop, since 'oparg' will have been overwritten by the result from the first time around the loop. This happens because it uses the same register for 'oparg' (an input) as it uses for the result. This fixes it by using separate registers for 'oparg' and 'ret'. Cc: stable@kernel.org Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/pseries: Set error_state to pci_channel_io_normal in eeh_report_reset()Mike Mason2009-04-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While adding native EEH support to Emulex and Qlogic drivers, it was discovered that dev->error_state was set to pci_io_channel_normal too late in the recovery process. These drivers rely on error_state to determine if they can access the device in their slot_reset callback, thus error_state needs to be set to pci_io_channel_normal in eeh_report_reset(). Below is a detailed explanation (courtesy of Richard Lary) as to why this is necessary. Background: PCI MMIO or DMA accesses to a frozen slot generate additional EEH errors. If the number of additional EEH errors exceeds EEH_MAX_FAILS the adapter will be shutdown. To avoid triggering excessive EEH errors and an undesirable adapter shutdown, some drivers use the pci_channel_offline(dev) wrapper function to return a Boolean value based on the value of pci_dev->error_state to determine if PCI MMIO or DMA accesses are safe. If the wrapper returns TRUE, drivers must not make PCI MMIO or DMA access to their hardware. The pci_dev structure member error_state reflects one of three values, 1) pci_channel_io_normal, 2) pci_channel_io_frozen, 3) pci_channel_io_perm_failure. Function pci_channel_offline(dev) returns TRUE if error_state is pci_channel_io_frozen or pci_channel_io_perm_failure. The EEH driver sets pci_dev->error_state to pci_channel_io_frozen at the point where the PCI slot is frozen. Currently, the EEH driver restores dev->error_state to pci_channel_io_normal in eeh_report_resume() before calling the driver's resume callback. However, when the EEH driver calls the driver's slot_reset callback() from eeh_report_reset(), it incorrectly indicates the error state is still pci_channel_io_frozen. Waiting until eeh_report_resume() to restore dev->error_state to pci_channel_io_normal is too late for Emulex and QLogic FC drivers and any other drivers which are designed to use common code paths in these two cases: i) those called after the driver's slot_reset callback() and ii) those called after the PCI slot is frozen but before the driver's slot_reset callback is called. Case i) all driver paths executed to reinitialize the hardware after a reset and case ii) all code paths executed by driver kernel threads that run asynchronous to the main driver thread, such as interrupt handlers and worker threads to process driver work queues. Emulex and QLogic FC drivers are designed with common code paths which require that pci_channel_offline(dev) reflect the true state of the hardware. The state transitions that the hardware takes from Normal Operations to Slot Frozen to Reset to Normal Operations are documented in the Power Architecture™ Platform Requirements+ (PAPR+) in Table 75. PE State Control. PAPR defines the following 3 states: 0 -- Not reset, Not EEH stopped, MMIO load/store allowed, DMA allowed (Normal Operations) 1 -- Reset, Not EEH stopped, MMIO load/store disabled, DMA disabled 2 -- Not reset, EEH stopped, MMIO load/store disabled, DMA disabled (Slot Frozen) An EEH error places the slot in state 2 (Frozen) and the adapter driver is notified that an EEH error was detected. If the adapter driver returns PCI_ERS_RESULT_NEED_RESET, the EEH driver calls eeh_reset_device() to place the slot into state 1 (Reset) and eeh_reset_device completes by placing the slot into State 0 (Normal Operations). Upon return from eeh_reset_device(), the EEH driver calls eeh_report_reset, which then calls the adapter's slot_reset callback. At the time the adapter's slot_reset callback is called, the true state of the hardware is Normal Operations and should be accurately reflected by setting dev->error_state to pci_channel_io_normal. The current implementation of EEH driver does not do so and requires this change to correct this deficiency. Signed-off-by: Mike Mason <mmlnx@us.ibm.com> Acked-by: Linas Vepstas <linasvepstas@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Allow 256kB pages with SHMEMHugh Dickins2009-04-151-1/+1
| | | | | | | | | | | | | | | | Now that shmem's divisions by zero and SHMEM_MAX_BYTES are fixed, let powerpc 256kB pages coexist with CONFIG_SHMEM again. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/mm: Fix compile warningKumar Gala2009-04-071-1/+0
| | | | | | | | | | | | | | arch/powerpc/mm/tlb_nohash.c: In function 'flush_tlb_mm': arch/powerpc/mm/tlb_nohash.c:128: warning: unused variable 'cpu_mask' Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/85xx: TQM8548: update defconfigWolfgang Grandegger2009-04-071-116/+48
| | | | | | | | | | | | | | | | | | Enable highmem support for the TQM8548-AG modules and NAND support for the TQM8548-BE modules. Furthermore disable USB, Wireless and IDE support because it's not available on the STK85xx starter kit. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/85xx: TQM8548: use proper phy-handles for enet2 and enet3Wolfgang Grandegger2009-04-072-4/+4
| | | | | | | | | | | | | | | | For enet2 and enet3 the wrong phy-handles have been used in DTS files of the TQM8548 modules. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/85xx: TQM85xx: correct address of LM75 I2C device nodesWolfgang Grandegger2009-04-076-12/+12
| | | | | | | | | | | | | | | | | | Commit 0f73a449a649acfca91404a98a35353a618b9555 added I2C device nodes for the LM75 thermal sensor on the TQM85xx modules, unfortunately with the wrong I2C address. The LM75s are located at address 0x48. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc: Add support for early tlbilx opcodeKumar Gala2009-04-074-3/+30
| | | | | | | | | | | | | | | | During the ISA 2.06 development the opcode for tlbilx changed and some early implementations used to old opcode. Add support for a MMU_FTR fixup to deal with this. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc: Fix tlbilx opcodeKumar Gala2009-04-071-1/+1
| | | | | | | | | | | | | | | | The tlbilx opcode was not matching the Power ISA 2.06 arch spec. The old opcode was an early suggested opcode that changed during the 2.06 architecture process. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | parport_pc: Fix build failure drivers/parport/parport_pc.c for powerpcTony Breeds2009-04-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 51dcdfec6a274afc1c6fce180d582add9ff512c0 ("parport: Use the PCI IRQ if offered") parport_pc_probe_port() gained an irqflags arg. This isn't being supplied on powerpc. This patch make powerpc fallback to the old behaviour, that is using "0" for irqflags. Fixes build failure: In file included from drivers/parport/parport_pc.c:68: arch/powerpc/include/asm/parport.h: In function 'parport_pc_find_nonpci_ports': arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' make[3]: *** [drivers/parport/parport_pc.o] Error 1 Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linuxLinus Torvalds2009-04-071-4/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux: i2c: imx: Make disable_delay a per-device variable i2c: xtensa s6000 i2c driver powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates board i2c: i2c-mpc: make I2C bus speed configurable i2c: i2c-mpc: use dev based printout function i2c: i2c-mpc: various coding style fixes i2c: imx: Add missing request_mem_region in probe() i2c: i2c-s3c2410: Initialise Samsung I2C controller early i2c-s3c2410: Simplify bus frequency calculation i2c-s3c2410: sda_delay should be in ns, not clock ticks i2c: iMX/MXC support
| * | powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates boardWolfgang Grandegger2009-04-071-4/+4
| | | | | | | | | | | | | | | | | | | | | Preserve I2C clock settings for the Socrates MPC8544 board. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | | dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)Yang Hongyang2009-04-074-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)Yang Hongyang2009-04-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'merge' of ↵Linus Torvalds2009-04-0731-79/+181
|\ \ \ | |/ / |/| / | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (28 commits) powerpc: Fix oops when loading modules powerpc: Wire up preadv and pwritev powerpc/ftrace: Fix printf format warning powerpc/ftrace: Fix #if that should be #ifdef powerpc: Fix ptrace compat wrapper for FPU register access powerpc: Print information about mapping hw irqs to virtual irqs powerpc: Correct dependency of KEXEC powerpc: Disable VSX or current process in giveup_fpu/altivec powerpc/pseries: Enable relay in pseries_defconfig powerpc/pseries: Fix ibm,client-architecture comment powerpc/pseries: Scan for all events in rtasd powerpc/pseries: Add dispatch dispersion statistics powerpc: Clean up some prom printouts powerpc: Print progress of ibm,client-architecture method powerpc: Remove duplicated #include's powerpc/pmac: Fix internal modem IRQ on Wallstreet PowerBook powerpc/wdrtas: Update wdrtas_get_interval to use rtas_data_buf fsl-diu-fb: Pass the proper device for dma mapping routines powerpc/pq2fads: Update device tree for use with device-tree-aware u-boot. cpm_uart: Disable CPM udbg when re-initing CPM uart, even if not the console. ...
| * powerpc: Fix oops when loading modulesPaul Mackerras2009-04-071-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a problem reported by Sean MacLennan where loading any module would cause an oops. We weren't marking the pages containing the module text as having hardware execute permission, due to a bug introduced in commit 8d1cf34e ("powerpc/mm: Tweak PTE bit combination definitions"), hence trying to execute the module text caused an exception on processors that support hardware execute permission. This adds _PAGE_HWEXEC to the definitions of PAGE_KERNEL_X and PAGE_KERNEL_ROX to fix this problem. Reported-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Wire up preadv and pwritevStephen Rothwell2009-04-072-1/+6
| | | | | | | | | | | | | | | | [paulus@samba.org: changed to use syscall numbers 320 and 321 since perf_counters is currently using 319.] Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/ftrace: Fix printf format warningMichael Ellerman2009-04-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | 'tramp' is an unsigned long, so print it with %lx. Fixes the following build warning: arch/powerpc/kernel/ftrace.c:291: error: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/ftrace: Fix #if that should be #ifdefMichael Ellerman2009-04-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Commit bb7253403f7a4670a128e4c080fd8ea1bd4d5029 ("powerpc64, ftrace: save toc only on modules for function graph"), added an #if CONFIG_PPC64. This changes it to #ifdef. Fixes the following warning on 32-bit builds: arch/powerpc/kernel/ftrace.c:562:5: error: "CONFIG_PPC64" is not defined Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Fix ptrace compat wrapper for FPU register accessMichael Neuling2009-04-071-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The ptrace compat wrapper mishandles access to the fpu registers. The PTRACE_PEEKUSR and PTRACE_POKEUSR requests miscalculate the index into the fpr array due to the broken FPINDEX macro. The PPC_PTRACE_PEEKUSR_3264 request needs to use the same formula that the native ptrace interface uses when operating on the register number (as opposed to the 4-byte offset). The PPC_PTRACE_POKEUSR_3264 request didn't take TS_FPRWIDTH into account. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Print information about mapping hw irqs to virtual irqsMichael Ellerman2009-04-071-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The irq remapping layer seems to cause some confusion when people see a different irq number in /proc/interrupts vs the one they request in their driver or DTS. So have the irq remapping layer print out a message when we map an irq. The message is only printed the first time the irq is mapped, and it's KERN_DEBUG so most people won't see it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Correct dependency of KEXECGeert Uytterhoeven2009-04-071-1/+1
| | | | | | | | | | | | | | | | | | commit 28794d34ecb6815a3fa0a4256027c9b081a17c5f ("powerpc/kconfig: Kill PPC_MULTIPLATFORM") broke KEXEC, by making it dependent on BOOK3S, while it should be PPC_BOOK3S. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Disable VSX or current process in giveup_fpu/altivecMichael Neuling2009-04-072-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we call giveup_fpu, we need to need to turn off VSX for the current process. If we don't, on return to userspace it may execute a VSX instruction before the next FP instruction, and not have its register state refreshed correctly from the thread_struct. Ditto for altivec. This caused a bug where an unaligned lfs or stfs results in fix_alignment calling giveup_fpu so it can use the FPRs (in order to do a single <-> double conversion), and then returning to userspace with FP off but VSX on. Then if a VSX instruction is executed, before another FP instruction, it will proceed without another exception and hence have the incorrect register state for VSX registers 0-31. lfs unaligned <- alignment exception turns FP off but leaves VSX on VSX instruction <- no exception since VSX on, hence we get the wrong VSX register values for VSX registers 0-31, which overlap the FPRs. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/pseries: Enable relay in pseries_defconfigAnton Blanchard2009-04-071-1/+1
| | | | | | | | | | | | | | | | Enable relay in pseries config, ppc64_defconfig had it enabled but pseries did not. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/pseries: Fix ibm,client-architecture commentAnton Blanchard2009-04-071-1/+1
| | | | | | | | | | | | | | We specify a 64MB RMO, but the comment says 128MB. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/pseries: Scan for all events in rtasdAnton Blanchard2009-04-071-1/+2
| | | | | | | | | | | | | | | | Instead of checking for known events, pass in all 1s so we handle future event types. We were currently missing the IO event type. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/pseries: Add dispatch dispersion statisticsAnton Blanchard2009-04-072-1/+17
| | | | | | | | | | | | | | | | PHYP tells us how often a shared processor dispatch changed physical cpus. This can highlight performance problems caused by the hypervisor. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Clean up some prom printoutsAnton Blanchard2009-04-071-4/+4
| | | | | | | | | | | | | | Make all messages consistent, some have spaces before the "...", some do not. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Print progress of ibm,client-architecture methodAnton Blanchard2009-04-071-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ibm,client-architecture method will often cause a reconfiguration reboot. When this happens the last thing we see is: Hypertas detected, assuming LPAR ! Which doesn't explain what just happened. Wrap the ibm,client-architecture so it's clear what is going on: Calling ibm,client-architecture... done In order to maintain the law of conservation of screen real estate, downgrade two other messages to debug. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Remove duplicated #include'sHuang Weiyi2009-04-072-2/+0
| | | | | | | | | | | | | | | | | | Remove duplicated #include's in - arch/powerpc/include/asm/ps3fb.h - arch/powerpc/kernel/setup-common.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch 'next' of ↵Paul Mackerras2009-04-0716-55/+111
| |\ | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into merge
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