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2006-09-20[S390] Linux API for writing z/VM APPLDATA Monitor records.Melissa Howland
This patch delivers a new Linux API in the form of a misc char device that is useable from user space and allows write access to the z/VM APPLDATA Monitor Records collected by the *MONITOR System Service of z/VM. Signed-off-by: Melissa Howland <melissah@us.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] Remove kexec experimental flag.Heiko Carstens
Follow other architectures and remove kexec experimental flag. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] cleanup appldata.Gerald Schaefer
Introduce asm header that contains the appldata data structures and the diag inline assembly. Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] Kernel stack overflow handling.Heiko Carstens
Substract the size of the initial stack frame from the correct register. Otherwise we will end up in a program check loop. Fix the offset into the save area as well. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] convert some assembler to C.Heiko Carstens
Convert GET_IPL_DEVICE assembler macro to C function. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] __exit cleanup.Heiko Carstens
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] Use simple_strtoul instead of own cmm_strtoul wrapper.Heiko Carstens
Fix compile warning with some configurations: arch/s390/mm/cmm.c:58: warning: 'cmm_strtoul' defined but not used Originally cmm_strtoul was introduced because simple_strtoul couldn't handle strings with hexadecimal numbers that contained a capital 'X'. Since this is no longer true cmm_strtoul can be removed. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] fix syscall restart handling.Heiko Carstens
If do_signal() gets called several times before returning to user space and no signal is pending (e.g. cancelled by a debugger) syscall restart handling could be done several times. This would change the user space PSW to an address prior to the syscall instruction. Fix this by making sure that syscall restart handling is only done once. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] ipl/dump on panic.Michael Holzheu
It is now possible to specify a ccw/fcp dump device which is used to automatically create a system dump in case of a kernel panic. The dump device can be configured under /sys/firmware/dump. In addition it is now possible to specify a ccw/fcp device which is used for the next reboot of Linux. The reipl device can be configured under /sys/firmware/reipl. Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] hypfs compiler warnings.Michael Holzheu
Add casts to avoid compiler warnings. Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] hypfs comment cleanup.Michael Holzheu
Correct some comments in the hypervisor filesystem. Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] initrd vs. bootmem bitmap.Heiko Carstens
Move initrd if the bitmap of the bootmem allocator would overwrite it. In addition this patch sets the default size and address of the initrd to 0. Therefore all boot loaders must set the initrd size and address correctly. This is especially relevant for ftp boot via HMC/SE, where this change requires a special patch file entry in the .ins file which sets these two values contained at address 0x10408 and 0x10410. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20[S390] add kprobes support.Michael Grundy
Signed-off-by: Michael Grundy <grundym@us.ibm.com> Signed-off-by: David Wilder <dwilder@us.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-19Revert mmiocfg heuristics and blacklist changesLinus Torvalds
This reverts commits 11012d419cfc0e0f78ca356aca03674217910124 and 40dd2d20f220eda1cd0da8ea3f0f9db8971ba237, which allowed us to use the MMIO accesses for PCI config cycles even without the area being marked reserved in the e820 memory tables. Those changes were needed for EFI-environment Intel macs, but broke some newer Intel 965 boards, so for now it's better to revert to our old 2.6.17 behaviour and at least avoid introducing any new breakage. Andi Kleen has a set of patches that work with both EFI and the broken Intel 965 boards, which will be applied once they get wider testing. Cc: Arjan van de Ven <arjan@infradead.org> Cc: Edgar Hucek <hostmaster@ed-soft.at> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-18x86: save/restore eflags in context switchLinus Torvalds
(And reset it on new thread creation) It turns out that eflags is important to save and restore not just because of iopl, but due to the magic bits like the NT bit, which we don't want leaking between different threads. Tested-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-18Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC]: Fix regression in sys_getdomainname() [OPENPROMIO]: Handle current_node being NULL correctly.
2006-09-18Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3815/1: headers_install support for ARM [ARM] 3794/1: S3C24XX: do not defined set_irq_wake when no CONFIG_PM [ARM] 3793/1: S3C2412: fix wrong serial info struct [ARM] 3780/1: Fix iop321 cpuid [ARM] 3786/1: pnx4008: update defconfig [ARM] 3785/1: S3C2412: Fix idle code as default uses wrong clocks [ARM] 3784/1: S3C2413: fix config for MACH_S3C2413/MACH_SMDK2413
2006-09-18[SPARC]: Fix regression in sys_getdomainname()Andy Walker
This patch corrects the buffer length checking in the sys_getdomainname() implementation for sparc/sparc64. Signed-off-by: Andy Walker <andy@puszczka.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-18[ARM] 3794/1: S3C24XX: do not defined set_irq_wake when no CONFIG_PMBen Dooks
Patch from Ben Dooks Do not define set_irq_wake as a real function if the CONFIG_PM option is not set. Fixes bug reported by Thomas Gleixner. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-16[PATCH] i386/x86-64: Add core 2 to oprofileBenjamin LaHaise
Add the CPU identification needed by oprofile for Intel (r) Core (tm) 2 CPUs. Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: "Arun Sharma" <aruns@google.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-14[ARM] 3780/1: Fix iop321 cpuidDan Williams
Patch from Dan Williams commit a6a38a66224c7c578cfed2f584b440c81af0c3ae changed the iop321 id to a value that does not work with all platforms. Change the mask to permit bit 11. Tested on an iq80321 600Mhz CRB. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-14[ARM] 3786/1: pnx4008: update defconfigVitaly Wool
Patch from Vitaly Wool This patch updates the default configuration file for PNX4008. arch/arm/configs/pnx4008_defconfig | 715 +++++++------------------------------ 1 file changed, 154 insertions(+), 561 deletions(-) Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-14[ARM] 3785/1: S3C2412: Fix idle code as default uses wrong clocksBen Dooks
Patch from Ben Dooks Fix the idle code on the s3c2412 as the default code is using bits in the CLKCON register that are no-longer there. Provide an override for the idle code, and ensure that the power configuration is set to allow idle instead of stop or sleep. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-14[ARM] 3784/1: S3C2413: fix config for MACH_S3C2413/MACH_SMDK2413Ben Dooks
Patch from Ben Dooks These two machines are identical, and supported by the SMDK2413 configuration. When MACH_SMDK2413 is selected, we must also select MACH_S3C2413 to allow machine_is_smdk2413() or machine_is_s3c2413() to work. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-13Merge branch 'merge' of ↵Linus Torvalds
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 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 Herrenschmidt
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 Mackerras
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] Fix interrupt clearing in kdump shutdown sequenceMohan Kumar M
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 Hering
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 Loeliger
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 ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current * '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 Viro
... 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 Viro
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 Mundt
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 Mundt
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 Mundt
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 Viro
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 Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-09-11[PATCH] syscall classes hookup for ppc and s390Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-09-11Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 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 Mackerras
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-09[ARM] 3783/1: S3C2412: fix IRQ_EINT0 to IRQ_EINT3 handlingBen Dooks
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 Dooks
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 Steiner
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 Steiner
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 Schwab
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 Eranian
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 Korotaev
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 Dooks
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 Marinas
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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