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2006-08-04Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] make uncached allocator more node aware
2006-08-04[IA64] make uncached allocator more node awareDean Nelson
The uncached allocator has a function, uncached_get_new_chunk(), that needs to be serialized on a per node basis. It also has a global variable, allocated_granules, which should be defined on a per node basis and protected by that serialization. Additionally, all error returns from functions called (like ia64_pal_mc_drain()) should be handled appropriately. Signed-off-by: Dean Nelson <dcn@sgi.com> Acked-by: Jes Sorenson <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-08-04Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Propagate acpi_processor_preregister_performance return value. [CPUFREQ] [2/2] demand load governor modules. [CPUFREQ] [1/2] add __find_governor helper and clean up some error handling. [CPUFREQ] Longhaul - Rename & fix multipliers table [CPUFREQ] Longhaul - Fix power state test to do something more useful [CPUFREQ] Longhaul - Readd accidentally dropped line [CPUFREQ] Make longhaul_walk_callback() static [CPUFREQ] X86_GX_SUSPMOD must depend on PCI [CPUFREQ] Longhaul - Initialise later. [CPUFREQ] Longhaul - Workaround issues with APIC. [CPUFREQ] Longhaul - Hook into ACPI C states. [CPUFREQ] return error when failing to set minfreq
2006-08-03Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] fix show_mem for VIRTUAL_MEM_MAP+FLATMEM [IA64] align high endpoint of VIRTUAL_MEM_MAP [PATCH] Fix RAID5 + IA64 compile [IA64] Don't alloc empty frame in ia64_switch_mode_phys [IA64] Do not assume output registers be reservered. [IA64] add platform check to snsc driver init [IA64] sparse cleanups [IA64] Fix breakage in simscsi.c [IA64] Format /proc/pal/*/version_info correctly
2006-08-03[IA64] fix show_mem for VIRTUAL_MEM_MAP+FLATMEMBob Picco
contig.c (FLATMEM) requires the same optimization as in discontig.c for show_mem when VIRTUAL_MEM_MAP is in use. Otherwise FLATMEM has softlockup timeouts. This was boot tested for memory configuration: SPARSEMEM, DISCONTIG+VIRTUAL_MEM_MAP, FLATMEM, FLATMEM+VIRTUAL_MEM_MAP and FLATMEM+VIRTUAL_MEM_MAP with largest memory gap less than LARGE_GAP by using boot parameter "mem=". This was boot tested and "echo m >/proc/sysrq-trigger" output evaluated for : FLATMEM, FLATMEM+VIRTUAL_MEM_MAP, DISCONTIGMEM+VIRTUAL_MEM_MAP and SPARSEMEM. Signed-off-by: Bob Picco <bob.picco@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-08-03[IA64] align high endpoint of VIRTUAL_MEM_MAPBob Picco
Assure that vmem_map's high endpoint is MAX_ORDER aligned. Not doing so violates the buddy allocator algorithm. Also anyone using mem=XXX on boot line and not aligned to MAX_ORDER requires this patch in order to satisfy buddy allocator. vmem_map always starts at pfn 0. The potentially large MAX_ORDER on ia64 (due to hugetlbfs) requires that the end of vmem_map be aligned to MAX_ORDER_NR_PAGES. This was boot tested for: FLATMEM, FLATMEM+VIRTUAL_MEM_MAP, DISCONTIGMEM+VIRTUAL_MEM_MAP and SPARSEMEM. Signed-off-by: Bob Picco <bob.picco@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-08-03[PATCH] Fix RAID5 + IA64 compilePrarit Bhargava
CONFIG_MD_RAID5 became CONFIG_MD_RAID456 in drivers/md/Kconfig. Make the same change in arch/ia64 Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Aron Griffis <aron@hp.com> Acked-by: Jes Sorenson <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-08-02Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3743/1: ARM: OMAP: Fix compile for OMAP [ARM] 3739/1: genirq updates: irq_chip, add and use irq_chip.name
2006-08-02[PATCH] x86_64: Fix CONFIG_IOMMU_DEBUGMuli Ben-Yehuda
If CONFIG_IOMMU_DEBUG is set force_iommu defaults to 1. In the case where no HW IOMMU is present in the machine and we end up using nommu, leaving force_iommu set to 1 causes dma_alloc_coherent to do the wrong thing. Therefore, if we end up using nommu, make sure force_iommu is 0. Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-08-02[PATCH] x86_64: Fix backtracing for interrupt stacksAndi Kleen
Re-add backlink for old style unwinder to stack switching. Add proper stack frame and CFI annotations to call_softirq This prevents a oops when backtracing with fallback through the interrupt stack top. Suggested by Jan Beulich and Herbert Xu wanted it in 2.6.18. Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-08-02[IA64] Don't alloc empty frame in ia64_switch_mode_physZou Nan hai
I think ia64_switch_mode_phys and ia64_switch_mode_virt does not need to alloc an empty frame. An empty frame is required by loadrs but flushrs does not need that. Signed-off-by: Zou Nan hai <nanhai.zou@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-08-02[IA64] Do not assume output registers be reservered.Zou Nan hai
We found an issue in pal.S. According to the software runtime SPEC, The caller's output registers do not need to be preserved for caller. The callee may reuse input registers for any other purpose within the procedure. in ia64_pal_call_phys_stacked, input registers are copied to output registers before call into ia64_switch_mode_phys, then used to call into PAL. This assumes output registers are preserved in ia64_switch_mode_phys, which may not be true. In this particular case, ia64_switch_mode_phys alloc a null frame , and mask off psr.i. If an interrupt comes at this small window, or an MCA comes inside the procedure, output registers maybe changed, then the pal call may got some staled input registers. This patch moves the copies from input to output after ia64_switch_mode_phys to follow the software runtime convention. It also removed some unused labels in ia64_pal_call_phys_stacked. Signed-off-by: Zou Nan hai <nanhai.zou@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-08-02[IA64] sparse cleanupsKeith Owens
Fix some sparse warnings on ia64. Large constants that should be long instead of int. Use NULL instead of 0. Add some missing __iomem casts. Replace a non-C99 structure assignment. Signed-off-by: Keith Owens <kaos@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-08-01[ARM] 3739/1: genirq updates: irq_chip, add and use irq_chip.nameDavid Brownell
Patch from David Brownell ARM genirq cleanups/updates: - Start switching platforms to newer APIs * use "irq_chip" name, not "irqchip" * providing irq_chip.name - Show irq_chip.name in /proc/interrupts, like on x86. This update a bit more than half of the ARM code. The irq_chip.name values were chosen to match docs (if I have them) or be otherwise obvious ("FPGA", "CPLD", or matching the code). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-07-31[CPUFREQ] Propagate acpi_processor_preregister_performance return value.bert hubert
Note how any error from acpi_processor_preregister_performance is ignored. From: bert hubert <bert.hubert@netherlabs.nl> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31[CPUFREQ] Longhaul - Rename & fix multipliers tableRafa³ Bilski
This table is only used by Ezra-T CPUs currently, and has values for some other CPU. Fix them to match the values used by that CPU, and for now make it clearer by renaming the variable. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31[CPUFREQ] Longhaul - Fix power state test to do something more usefulRafa³ Bilski
This is changing "always true" test to something usefull. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31[CPUFREQ] Longhaul - Readd accidentally dropped lineRafa³ Bilski
I lost very important line in do_powersaver Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31[CPUFREQ] Make longhaul_walk_callback() staticAdrian Bunk
This patch makes the needlessly global longhaul_walk_callback() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31[CPUFREQ] X86_GX_SUSPMOD must depend on PCIAdrian Bunk
It seems commit 32ee8c3e470d86588b51dc42ed01e85c5fa0f180 accidentially reverted cdc9cc1d740ffc3d8d8207fbf5df9bf05fcc9955, IOW, it reintroduced the following compile error with CONFIG_PCI=n: <-- snip --> ... CC arch/i386/kernel/cpu/cpufreq/gx-suspmod.o arch/i386/kernel/cpu/cpufreq/gx-suspmod.c: In function ‘gx_detect_chipset’: arch/i386/kernel/cpu/cpufreq/gx-suspmod.c:193: error: implicit declaration of function ‘pci_match_id’ arch/i386/kernel/cpu/cpufreq/gx-suspmod.c:193: warning: comparison between pointer and integer make[3]: *** [arch/i386/kernel/cpu/cpufreq/gx-suspmod.o] Error 1 <-- snip --> This patch therefore re-adds the dependency of X86_GX_SUSPMOD on PCI. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31[CPUFREQ] Longhaul - Initialise later.Rafa³ Bilski
Without this longhaul will always fail when compiled into kernel, as it needs to initialise after the ACPI processor module. I lost this when I was splitting patches. Sorry. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31[CPUFREQ] Longhaul - Workaround issues with APIC.Rafa³ Bilski
There is no need to worry about local APIC. There is need to worry about I/O APIC, because I/O APIC is replacing good old 8259. According to Nehemiah datasheet VIA is using 3-wire bus to connect local APIC to I/O APIC. "[...] When IA32_APIC_BASE[11] is set to 0, processor APICs based on the 3-wire APIC bus cannot be generally re-enabled until a system hardware reset. The 3-wire bus looses track of arbitration that would be necessary for complete re-enabling. Certain (local) APIC functionality can be enabled. [...]" So we must set disable bit for each interrupt in I/O APIC registers. Same situation as for PIC - we must poke registers direcly. How to do this? I don't know. So at the moment it is better to fail. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31[CPUFREQ] Longhaul - Hook into ACPI C states.Rafa³ Bilski
Minimal change necessary for hardware support. Changes in longhaul.c: - most important - now C3 state is causing transition, - code responsible for clearing "bus master" bit removed, - protect bcr2 transition in the same way as longhaul. Signed-off-by: Rafa³ Bilski <rafalbilski@interia.pl> Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31Merge 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] Minor comment fix for misc_64.S [POWERPC] Use H_CEDE on non-SMT [POWERPC] force 64bit mode in fwnmi handlers to workaround firmware bugs [POWERPC] PMAC_APM_EMU should depend on ADB_PMU [POWERPC] Fix new interrupt code (MPIC detection) [POWERPC] Fix new interrupt code (MPIC endianness) [POWERPC] Add cpufreq support for Xserve G5 [POWERPC] Xserve G5 thermal control fixes [POWERPC] Fix mem= handling when the memory limit is > RMO size [POWERPC] More offb/bootx fixes [POWERPC] Fix legacy_serial.c error handling on 32 bits [POWERPC] Fix default clock for udbg_16550 [POWERPC] Fix non-MPIC CHRPs with CONFIG_SMP set [POWERPC] Fix 32 bits warning in prom_init.c [POWERPC] Workaround Pegasos incorrect ISA "ranges" [POWERPC] fix up front-LED Kconfig
2006-07-31[PATCH] powermac: More powermac backlight fixesMichael Hanselmann
This patch fixes several problems: - The legacy backlight value might be set at interrupt time. Introduced a worker to prevent it from directly calling the backlight code. - via-pmu allows the backlight to be grabbed, in which case we need to prevent other kernel code from changing the brightness. - Don't send PMU requests in via-pmu-backlight when the machine is about to sleep or waking up. - More Kconfig fixes. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] Fix trivial unwind info bugMarkus Armbruster
CFA needs to be adjusted upwards for push, and downwards for pop. arch/i386/kernel/entry.S gets it wrong in one place. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Jan Beulich <jbeulich@novell.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] vDSO hash-style fixRoland McGrath
The latest toolchains can produce a new ELF section in DSOs and dynamically-linked executables. The new section ".gnu.hash" replaces ".hash", and allows for more efficient runtime symbol lookups by the dynamic linker. The new ld option --hash-style={sysv|gnu|both} controls whether to produce the old ".hash", the new ".gnu.hash", or both. In some new systems such as Fedora Core 6, gcc by default passes --hash-style=gnu to the linker, so that a standard invocation of "gcc -shared" results in producing a DSO with only ".gnu.hash". The new ".gnu.hash" sections need to be dealt with the same way as ".hash" sections in all respects; only the dynamic linker cares about their contents. To work with older dynamic linkers (i.e. preexisting releases of glibc), a binary must have the old ".hash" section. The --hash-style=both option produces binaries that a new dynamic linker can use more efficiently, but an old dynamic linker can still handle. The new section runs afoul of the custom linker scripts used to build vDSO images for the kernel. On ia64, the failure mode for this is a boot-time panic because the vDSO's PT_IA_64_UNWIND segment winds up ill-formed. This patch addresses the problem in two ways. First, it mentions ".gnu.hash" in all the linker scripts alongside ".hash". This produces correct vDSO images with --hash-style=sysv (or old tools), with --hash-style=gnu, or with --hash-style=both. Second, it passes the --hash-style=sysv option when building the vDSO images, so that ".gnu.hash" is not actually produced. This is the most conservative choice for compatibility with any old userland. There is some concern that some ancient glibc builds (though not any known old production system) might choke on --hash-style=both binaries. The optimizations provided by the new style of hash section do not really matter for a DSO with a tiny number of symbols, as the vDSO has. If someone wants to use =gnu or =both for their vDSO builds and worry less about that compatibility, just change the option and the linker script changes will make any choice work fine. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Andi Kleen <ak@muc.de> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] sgiioc4: Always share IRQBrent Casavant
The SGI IOC4 IDE device always shares an interrupt with other devices which are part of IOC4. As such, IDEPCI_SHARE_IRQ should always be enabled when BLK_DEV_SGIIOC4 is enabled. Signed-off-by: Brent Casavant <bcasavan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] cpu hotplug: use hotplug version of registration in late initsChandra Seetharaman
Use hotplug version of register_cpu_notifier in late init functions. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] cpu hotplug: replace __devinit* with __cpuinit* for cpu notificationsChandra Seetharaman
Few of the callback functions and notifier blocks that are associated with cpu notifications incorrectly have __devinit and __devinitdata. They should be __cpuinit and __cpuinitdata instead. It makes no functional difference but wastes text area when CONFIG_HOTPLUG is enabled and CONFIG_HOTPLUG_CPU is not. This patch fixes all those instances. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] panic_on_oops: remove ssleep()Horms
This patch is part of an effort to unify the panic_on_oops behaviour across all architectures that implement it. It was pointed out to me by Andi Kleen that if an oops has occured in interrupt context, then calling sleep() in the oops path will only cause a panic, and that it would be really better for it not to be in the path at all. This patch removes the ssleep() call and reworks the console message accordinly. I have a slght concern that the resulting console message is too long, feedback welcome. For powerpc it also unifies the 32bit and 64bit behaviour. Fror x86_64, this patch only updates the console message, as ssleep() is already not present. Signed-off-by: Horms <horms@verge.net.au> Acked-by: Paul Mackerras <paulus@samba.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] IDE: Touch NMI watchdog during resume from STRMichal Schmidt
When resuming from suspend-to-RAM, the NMI watchdog detects a lockup in ide_wait_not_busy. Here's a screenshot of the trace taken by a digital camera: http://www.uamt.feec.vutbr.cz/rizeni/pom/DSC03510-2.JPG Let's touch the NMI watchdog in ide_wait_not_busy. The system then resumes correctly from STR. [akpm@osdl.org: modular build fix] Signed-off-by: Michal Schmidt <xschmi00@stud.feec.vutbr.cz> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] v850: call init_page_count() instead of set_page_count()Miles Bader
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] v850: Remove symbol exports which duplicate global onesMiles Bader
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] IA64: kprobe invalidate icache of jump bufferbibo, mao
Kprobe inserts breakpoint instruction in probepoint and then jumps to instruction slot when breakpoint is hit, the instruction slot icache must be consistent with dcache. Here is the patch which invalidates instruction slot icache area. Without this patch, in some machines there will be fault when executing instruction slot where icache content is inconsistent with dcache. Signed-off-by: bibo,mao <bibo.mao@intel.com> Acked-by: "Luck, Tony" <tony.luck@intel.com> Acked-by: Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] arch/alpha: Use ARRAY_SIZE macroTobias Klauser
Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove a duplicate of the macro. Also remove some trailing whitespaces and needless braces. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] i386: fix CONFIG_EFI helpArthur Othieno
It is described as being experimental, but doesn't actually depend on EXPERIMENTAL. Change the text. Signed-off-by: Arthur Othieno <apgo@patchbomb.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] kprobe-booster: disable in preemptible kernelMasami Hiramatsu
The kprobe-booster's safety check against preemption does not work well now, because the preemption count has been modified by read_rcu_lock() in atomic_notifier_call_chain() before we check it. So, I'd like to prevent boosting kprobe temporarily if the kernel is preemptable. Now we are searching for the good solution. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] machine_kexec.c: Fix the description of segment handlingEric W. Biederman
One of my original comments in machine_kexec was unclear and this should fix it. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Andi Kleen <ak@muc.de> Acked-by: Horms <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] synchronize_tsc() fixesAndrew Morton
- Move the tsc synchronisation variables into a struct, mark it __initdata - local `realdelta' wants to be 64-bit - Print the skew for negative skews, as well as for positive ones - remove dead code Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[PATCH] mce section fixAndrew Morton
mce_disabled cannot be __initdata - we access it during APM resume. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-31[IA64] Fix breakage in simscsi.cTony Luck
arch/ia64/hp/sim/simscsi.c: In function `simscsi_sg_readwrite': arch/ia64/hp/sim/simscsi.c:154: error: structure has no member named `buffer' arch/ia64/hp/sim/simscsi.c: In function `simscsi_fillresult': arch/ia64/hp/sim/simscsi.c:247: error: structure has no member named `buffer' hch said: >Just change it to access the request_buffer member instead. buffer >and request_buffer have been synonymous 99% of the time, and a driver >never even wants to access buffer. Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-07-31[IA64] Format /proc/pal/*/version_info correctlyMatthew Wilcox
/proc/pal/*/version_info is a bit confusing. HP firmware, at least, reports 07.31 instead of 0.7.31. Also, the comment is out of place; it's an internal detail about the implementation of ia64_pal_version. Since the 2.2 revision of the SDM still states that PAL_VERSION can be called in virtual mode, correct the comment to be more accurate. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-07-31[POWERPC] Minor comment fix for misc_64.SGeoff Levand
A minor comment fix for misc_64.S from Takao Shinohara. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-31[POWERPC] Use H_CEDE on non-SMTJake Moilanen
On the JS21 systems, they have the SPLPAR hypertas set, but are not SMT capable. So, they are not making the H_CEDE call. This is causing the hypervisor to have to queue up work for the hdecr, taking an excessive amount of time in maintenance code, and causing jitter on the box. Making the H_CEDE call helps alleviate that problem. Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-29Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3734/1: Fix the unused variable warning in __iounmap() [ARM] 3737/1: Export ARM copy/clear_user_page symbols [ARM] 3736/1: xscale: don't mis-report 80219 as an iop32x [ARM] 3733/2: S3C24XX: Remove old IDE registers in Anubis [ARM] 3732/1: S3C24XX: tidy syntax in osiris and anubis machines [ARM] Fix SMP booting [ARM] 3731/1: Allow IRQ definitions of IQ80331 and IQ80332 to co-exist [ARM] 3730/1: ep93xx: enable usb ohci driver in the defconfig [ARM] Fix cats build
2006-07-29[PATCH] i386: Fix up backtrace fallback patchAndi Kleen
I didn't test all compilation combinations. Shame on me. And fix a missing option in the boot option following x86-64 (Jan Beulich) Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-29[PATCH] x86_64: Fix swiotlb=forceAndi Kleen
It was broken before. But having it is important as possible hardware bug workaround. And previously there was no way to force swiotlb if there is another IOMMU. Side effect is that iommu=force won't force swiotlb anymore even if there isn't another IOMMU. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-29[PATCH] x86_64: Revert k8-bus.c northbridge access changeAndi Kleen
As Travis Betak points out it accesses the wrong northbridge subfunction now. Switch back to the old code. Cc: "Travis Betak" <betak@mpdtxmail.amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-29[PATCH] x86_64: Calgary IOMMU - Multi-Node NULL pointer dereference fixJon Mason
Calgary hits a NULL pointer dereference when booting in a multi-chassis NUMA system. See Redhat bugzilla number 198498, found by Konrad Rzeszutek (konradr@redhat.com). There are many issues that had to be resolved to fix this problem. Firstly when I originally wrote the code to handle NUMA systems, I had a large misunderstanding that was not corrected until now. That was that I thought the "number of nodes online" referred to number of physical systems connected. So that if NUMA was disabled, there would only be 1 node and it would only show that node's PCI bus. In reality if NUMA is disabled, the system displays all of the connected chassis as one node but is only ignorant of the delays in accessing main memory. Therefore, references to num_online_nodes() and MAX_NUMNODES are incorrect and need to be set to the maximum number of nodes that can be accessed (which are 8). I created a variable, MAX_NUM_CHASSIS, and set it to 8 to fix this. Secondly, when walking the PCI in detect_calgary, the code only checked the first "slot" when looking to see if a device is present. This will work for most cases, but unfortunately it isn't always the case. In the NUMA MXE drawers, there are USB devices present on the 3rd slot (with slot 1 being empty). So, to work around this, all slots (up to 8) are scanned to see if there are any devices present. Lastly, the bus is being enumerated on large systems in a different way the we originally thought. This throws the ugly logic we had out the window. To more elegantly handle this, I reorganized the kva array to be sparse (which removed the need to have any bus number to kva slot logic in tce.c) and created a secondary space array to contain the bus number to phb mapping. With these changes Calgary boots on an x460 with 4 nodes with and without NUMA enabled. Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>