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2006-09-21[POWERPC] PPC: Fix xmon stack frame address in backtraceJosh Boyer1-1/+1
The stack frame address was being printed incorrectly in the backtrace option of XMON on PPC. This patch fixes it to print the actual stack address instead of the address of the local variable that contains it. Signed-off-by: Josh Boyer <jdub@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-21[POWERPC] Add AT_PLATFORM value for Xilinx Virtex-4 FXPeter Bergner1-0/+1
Jakub noticed the cputable.c entry for Xilinx Virtex-4 FX was missing a .platform value, so the AT_PLATFORM value wouldn't be set correctly. This adds it. Signed-off-by: Peter Bergner <bergner@vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-20[POWERPC] Start arch/powerpc/boot code reorganizationMark A. Greer9-178/+441
This abstracts the operations used in the bootwrapper, and defines the operations needed for the bootwrapper to run on an OF platform. The operations have been divided up into platform ops (platform_ops), firmware ops (fw_ops), device tree ops (dt_ops), and console ops (console_ops). The proper operations will be hooked up at runtime to provide the functionality that you need. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-20[POWERPC] Define of_read_ulong helperPaul Mackerras3-25/+11
There are various places where we want to extract an unsigned long value from a device-tree property that can be 1 or 2 cells in length. This replaces some open-coded calculations, and one place where we assumed without checking that properties were the length we wanted, with a little of_read_ulong() helper. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-20[POWERPC] convert string i/o operations to CStephen Rothwell4-103/+118
This produces essentially the same code and will make the iSeries i/o consolidation easier. The count parameter is changed to long since that will produce the same (better) code on 32 and 64 bit builds. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-20[POWERPC] clean up ide io accessorsStephen Rothwell4-28/+0
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-20[POWERPC] remove unused asm routinesStephen Rothwell4-144/+0
_insw, _outsw, _insl amd _outsl are all unused, so remove them. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-20[POWERPC] remove unused io accessorsStephen Rothwell1-16/+0
The io accessors insw_ns, outsw_ns, insl_ns and outsl_ns are unused (except for one unnecessary use in drivers/net/3c509.c that is addressed in a previous patch) and are only defined in powerpc/ppc, so remove them. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-20[POWERPC] silence a warningStephen Rothwell1-1/+1
Left over from the constifying of get_property. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-20[POWERPC] make spinlocks work in a combined kernelStephen Rothwell1-14/+13
If we build a pSeries/iSeries combined kernel, we will need this. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-14[POWERPC] Fix MPC8349EMDS dts PCI interrupt-map values for IDSEL 0x18Kim Phillips1-8/+8
Fix MPC8349EMDS dts PCI interrupt-map values for IDSEL 0x18 per Tanya's catch. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Tanya Jiang <tanya.jiang@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-14[POWERPC] Fix non-smp buildOlof Johansson1-0/+1
This fixes a compile error that only surfaces on CONFIG_SMP=n builds; <asm/hvcall.h> seems to get pulled in through another header file for SMP builds. This problem was introduced by the hvcall stats patch. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-14Merge branch 'linux-2.6'Paul Mackerras84-890/+1887
2006-09-13Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds19-498/+1014
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix G5 DART (IOMMU) race causing occasional data corruption [POWERPC] Fix MMIO ops to provide expected barrier behaviour [POWERPC] Fix interrupt clearing in kdump shutdown sequence [POWERPC] update prep_defconfig [POWERPC] kdump: Support kernels having 64k page size. [POWERPC] Implement PowerPC futex_atomic_cmpxchg_inatomic(). [POWERPC] Add new, missing argument to of_irq_map_raw() for 86xx. [POWERPC] Update defconfigs
2006-09-13[POWERPC] Fix G5 DART (IOMMU) race causing occasional data corruptionBenjamin Herrenschmidt1-1/+6
It seems that the occasional data corruption observed with the tg3 driver wasn't due to missing barriers after all, but rather seems to be due to the DART (= IOMMU) in the U4 northbridge reading stale IOMMU table entries from memory due to a race. This fixes it by making the CPU read the entry back from memory before using it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] Fix MMIO ops to provide expected barrier behaviourPaul Mackerras1-24/+25
This changes the writeX family of functions to have a sync instruction before the MMIO store rather than after, because the generally expected behaviour is that the device receiving the MMIO store can be guaranteed to see the effects of any preceding writes to normal memory. To preserve ordering between writeX and readX, and to preserve ordering between preceding stores and the readX, the readX family of functions have had an sync added before the load. Although writeX followed by spin_unlock is not officially guaranteed to keep the writeX inside the spin-locked region unless an mmiowb() is used, there are currently drivers that depend on the previous behaviour on powerpc, which was that the mmiowb wasn't actually required. Therefore we have a per-cpu flag that is set by writeX, cleared by __raw_spin_lock and mmiowb, and tested by __raw_spin_unlock. If it is set, __raw_spin_unlock does a sync and clears it. This changes both 32-bit and 64-bit readX/writeX. 32-bit already has a sync in __raw_spin_unlock (since lwsync doesn't exist on 32-bit), and thus doesn't need the per-cpu flag. Tested on G5 (PPC970) and POWER5. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] Export copy_4K_page()David Howells1-0/+3
Export copy_4K_page() for use by modules via copy_page() (such as CacheFiles). Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] print backtrace when entering xmonOlaf Hering3-0/+16
xmon does not print a backtrace per default. This is bad on systems with USB keyboard, the most needed info about the crash is lost. print a backtrace during the very first xmon entry. Booting with xmon=nobt disables the autobacktrace functionality. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] PPC: Fix Kconfig whitespace warningsJosh Boyer1-3/+3
Fix the following whitespace warnings when compiling with ARCH=ppc arch/ppc/Kconfig:1207:warning: leading whitespace ignored arch/ppc/Kconfig:1226:warning: leading whitespace ignored arch/ppc/Kconfig:1231:warning: leading whitespace ignored Also fix a typo ("Supprt"). Signed-off-by: Josh Boyer <jdub@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] powerpc: Instrument Hypervisor CallsMike Kravetz5-0/+223
Add instrumentation for hypervisor calls on pseries. Call statistics include number of calls, wall time and cpu cycles (if available) and are made available via debugfs. Instrumentation code is behind the HCALL_STATS config option and has no impact if not enabled. Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] powerpc: PA Semi PWRficient platform supportOlof Johansson7-0/+436
Base patch for PA6T and PA6T-1682M. This introduces the arch/powerpc/platform/pasemi directory, together with basic implementations for various setup. Much of this was based on other platform code, i.e. Maple, etc. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] powerpc: PA6T cputable entry, PVR valueOlof Johansson1-0/+14
Introduce PWRficient PA6T cputable entries and feature bits. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] powerpc: Reduce default cacheline size to 64 bytesOlof Johansson2-5/+5
Reduce default cacheline size on 64-bit powerpc from 128 bytes to 64. This is the architected minimum. In most cases we'll still end up using cache line information from the device tree, but defaults are used during early boot and doing a few dcbst/icbi's too many there won't do any harm. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] PPC 4xx: Enable XMON on PPC 4xx boardsJosh Boyer2-16/+38
The following patch allows XMON to run on the 4xx platform. Tested on Walnut, Ebony, and Nova (440GX based) eval boards. 440EP, 440SP, and 440SPE boards should work as well. Patch is against 2.6.18-rc6. Signed-off-by: Josh Boyer <jdub@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] Make function of pm_power_off consistent with x86Corey Minyard1-5/+12
Allow the pm_power_off function variable in PPC to work as an override. This makes the function consistent with the other architectures and it allows generic poweroff operations (like those provided in IPMI systems) to work properly on PPC. Signed-off-by: Corey Minyard <minyard@acm.org> Cc: Joseph Barnett <jbarnett@motorola.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] Emulate power5 popcntb instructionWill Schmidt1-0/+25
In an attempt to make it easier for a power5 optimized app to run on a power4 or a 970 or random earlier machine, this provides emulation of the popcntb instruction. Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] Split out vpa unregister logic from pseries_kexec_cpu_down_xics()Michael Ellerman1-6/+12
As part of the new irq code pseries_kexec_cpu_down() was split into a xics and mpic version. The vpa unregister logic is now only done in the xics routine, and although that's ok in practice (we don't have SPLPAR machines with mpic), I'd rather have the two concepts stay separate. So move the vpa unregister into pseries_kexec_cpu_down(), which gets called by both the xics and mpic routines. This also gives us an obvious place to put any new kexec-down logic needed in future. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] Fix interrupt clearing in kdump shutdown sequenceMohan Kumar M1-1/+1
Call chip->eoi(irq) to clear any pending interrupt in case of kdump shutdown sequence. chip->end(irq) does not serve this purpose. Signed-off-by: Mohan Kumar M <mohan@in.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] update prep_defconfigOlaf Hering1-266/+319
Update PReP defconfig, disable some drivers for hardware that is not used on those systems; enable SL82C105 IDE driver for Powerstack. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-13[POWERPC] Add new, missing argument to of_irq_map_raw() for 86xx.Jon Loeliger1-1/+1
Ben speaks; we follow. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-12Merge branch 'audit.b29' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-currentLinus Torvalds9-1/+75
* 'audit.b29' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: [PATCH] sparc64 audit syscall classes hookup [PATCH] syscall class hookup for all normal targets
2006-09-12[PATCH] sparc64 audit syscall classes hookupAl Viro4-0/+110
... that should do it for all targets; the only remaining issues are mips (currently treated as non-biarch) and handling of other OS emulations (OSF/SunOS/Solaris/???). The latter would need to be assigned new AUDIT_ARCH_... ABI numbers anyway... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-09-12[PATCH] syscall class hookup for all normal targetsAl Viro6-52/+16
Take default arch/*/kernel/audit.c to lib/, have those with special needs (== biarch) define AUDIT_ARCH in their Kconfig. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-09-12sh64: Add a sane pm_power_off implementation.Paul Mundt1-0/+3
sh64 wasn't providing a sensible pm_power_off(), add one, and just wrap it to machine_power_off, which already does the right thing. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-12sh64: Trivial build fixes.Paul Mundt2-3/+7
While we've been sorting out the toolchain fiasco, some of the code has suffered a bit of bitrot. Building with GCC4 also brings up some more build warnings. Trivial fixes for both issues. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-12sh64: Drop deprecated ISA tuning for legacy toolchains.Paul Mundt1-1/+0
The original sh64 toolchains required that we tune the ISA level accordingly to not have head.S/entry.S blow up. With current toolchains, this is no longer the case, and the syntax magically changed as well, causing all current toolchains to die a horrible death. Incidentally, code generation in other parts of the kernel is now significantly complex enough that none of the older toolchains make it very far these days, so there's not even any point in preserving legacy compatability via as-option. This fixes a long-standing issue, as noted here: http://lkml.org/lkml/2005/1/5/223 Though at the time the current toolchains were too broken to make adjusting the tuning worthwhile. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-11[PATCH] audit: AUDIT_PERM supportAl Viro9-0/+160
add support for AUDIT_PERM predicate Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-09-11[PATCH] audit: more syscall classes addedAl Viro9-0/+116
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-09-11[PATCH] syscall classes hookup for ppc and s390Al Viro6-1/+87
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-09-11Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds19-119/+164
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3778/1: S3C24XX: remove changelogs from include/asm-arm/arch-s3c2410 [simtec] [ARM] 3783/1: S3C2412: fix IRQ_EINT0 to IRQ_EINT3 handling [ARM] 3779/1: S3C24XX: remove changelogs from include/asm-arm/arch-s3c2410 [left] [ARM] 3777/1: S3C24XX: remove changelogs from include/asm-arm/arch-s3c2410 [regs-*.h] [ARM] 3776/1: S3C24XX: remove changelogs from include/asm-arm/arch-s3c2410 [ARM] 3775/1: S3C24XX: do not add same sysdev_driver to two classes [ARM] 3774/1: S3C24XX: SMDK2413 has two machine IDs [ARM] 3773/1: Add the HWCAP_VFP bit for the ARM926 CPUs [ARM] 3772/1: Fix compilation error in mach-ixp4xx/nslu2* [ARM] 3767/1: S3C24XX: remove changelog comments from arch/arm/mach-s3c2410 [ARM] 3766/1: Fix typo in ARM _raw_read_trylock
2006-09-10[POWERPC] Update defconfigsPaul Mackerras14-205/+662
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-09[ARM] 3783/1: S3C2412: fix IRQ_EINT0 to IRQ_EINT3 handlingBen Dooks4-2/+138
Patch from Ben Dooks The IRQ_EINT0 through IRQ_EINT3 handling has changed on the S3C2412 from the previous SoCs in the range, and thus we need to add code to handle this. The changes come about due to these IRQs being displayed in two different registers, and needing to be acked and masked in both. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-09[ARM] 3775/1: S3C24XX: do not add same sysdev_driver to two classesBen Dooks1-3/+6
Patch from Ben Dooks The s3c244x-irq.c code makes the mistake of adding the same drive to two different sys-classes. This causes the class lists to become corrupted and the suspend code to OOPS. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-08[IA64] SN fix for cpu hotplug/kexecJack Steiner1-1/+1
The sn_cpu_init() is required for cpu initialization on SN platforms. Change __init to __cpuinit so that the function is not freed with init code/data. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-09-08[IA64] Save register stack contents on cpu startJack Steiner1-0/+5
The SN PROM uses the register stack in the slave loop. The contents must be preserved for the OS to return to the slave loop via offlining a cpu or for kexec. A 'flushrs" is needed to force the stack to be written to memory prior to changing bspstore. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-09-08[IA64] Unwire set/get_robust_listAndreas Schwab1-2/+2
The syscalls set/get_robust_list must not be wired up until futex_atomic_cmpxchg_inatomic is implemented. Otherwise the kernel will hang in handle_futex_death. Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-09-08[IA64] correct file descriptor reference counting in perfmonStephane Eranian1-1/+3
Fix a bug in sys_perfmonctl() whereby it was not correctly decrementing the file descriptor reference count. Signed-off-by: stephane eranian <eranian@hpl.hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-09-08[PATCH] IA64,sparc: local DoS with corrupted ELFsKirill Korotaev3-40/+51
This prevents cross-region mappings on IA64 and SPARC which could lead to system crash. They were correctly trapped for normal mmap() calls, but not for the kernel internal calls generated by executable loading. This code just moves the architecture-specific cross-region checks into an arch-specific "arch_mmap_check()" macro, and defines that for the architectures that needed it (ia64, sparc and sparc64). Architectures that don't have any special requirements can just ignore the new cross-region check, since the mmap() code will just notice on its own when the macro isn't defined. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Signed-off-by: Kirill Korotaev <dev@openvz.org> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> [ Cleaned up to not affect architectures that don't need it ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-06[ARM] 3774/1: S3C24XX: SMDK2413 has two machine IDsBen Dooks1-1/+14
Patch from Ben Dooks It turns out we have both SMDK2413 and S3C2413 for the same board. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-06[ARM] 3773/1: Add the HWCAP_VFP bit for the ARM926 CPUsCatalin Marinas1-1/+1
Patch from Catalin Marinas The ARM926EJ-S CPU has the VFP coprocessor and therefore it should be shown in the /proc/cpuinfo if CONFIG_VFP is enabled. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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