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* defconfig reductionSam Ravnborg2010-08-14197-207237/+1181
| | | | | | | Use the defconfig files generated by "make savedefconfig" for remaining defconfig files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* archs: replace unifdef-y with header-ySam Ravnborg2010-08-1411-73/+65
| | | | | | unifdef-y and header-y have same semantic, so drop unifdef-y Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* Merge branch 'for-linus/samsung-2635' of git://git.fluff.org/bjdooks/linuxLinus Torvalds2010-08-1411-65/+213
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus/samsung-2635' of git://git.fluff.org/bjdooks/linux: DMAENGINE: correct PL080 register header file ARM: SAMSUNG: Fix on build warning about dependency in Kconfig ARM: SMDK6410: Make virtual screen twice depth of real ARM: S3C64XX: Update consistent DMA size to 8MiB ARM: S3C64XX: Add audio support to SmartQ ARM: S3C64XX: Framebuffer fix for SmartQ5 ARM: S3C64XX: Set wifi and iNAND as permanently connected SD devices on SmartQ boards ARM: S3C64XX: Move SmartQ LCD control platform definition to shared file ARM: mach-real6410: add sdhc device support ARM: mach-real6410: add dm9000 ethernet support for mach-real6410 ARM: S3C64XX: Support for Real6410 Fix up trivial conflicts in arch/arm/mach-s3c64xx/mach-smartq5.c ("remove pixclock" vs "Framebuffer fix for SmartQ5")
| * Merge branch 'for-2636/s3c64xx' into for-linus/samsung-2635Ben Dooks2010-08-148-62/+208
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| | * ARM: SMDK6410: Make virtual screen twice depth of realBen Dooks2010-08-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | For situations where double buffering is needed (such as the current Android) make the screen virtual y size twice the LCD size so that there is space for a second screen that can be switched to. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * ARM: S3C64XX: Update consistent DMA size to 8MiBBen Dooks2010-08-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Change the area available for consitent DMA allocations from the default to 8MiB to allow drivers such as the framebuffer to get more memory (for situations where larger virtual screen resolutions are needed). Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * ARM: S3C64XX: Add audio support to SmartQMaurus Cuelenaere2010-08-141-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | This adds the I²C board information for the WM8987 used in the SmartQ as audio codec and adds the I²C/I²S platform drivers. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * ARM: S3C64XX: Framebuffer fix for SmartQ5Patrick Georgi2010-08-141-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following change makes the framebuffer work on SmartQ5. There are still some problems with ADC, so this patch alone won't make the device run (or even give a working fb), but it's one issue less to think about. Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * ARM: S3C64XX: Set wifi and iNAND as permanently connected SD devices on ↵Maurus Cuelenaere2010-08-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SmartQ boards This patch changes the platform data definitions of the wifi and iNAND chip on the SmartQ 5 and 7 to indicate that they don't have a CD line available and are thus hard-wired to the SDHCI data lines. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * ARM: S3C64XX: Move SmartQ LCD control platform definition to shared fileMaurus Cuelenaere2010-08-143-58/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | This shares the common LCD control platform definition used in the SmartQ 5 and 7. This also corrects it as a GPIO bitbanged SPI device instead of an I²C one, which was wrong. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * ARM: mach-real6410: add sdhc device supportDarius Augulis2010-08-142-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | Register SHDCI devices Signed-off-by: Darius Augulis <augulis.darius@gmail.com> [ben-linux@fluff.org: rewrite header[ Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * ARM: mach-real6410: add dm9000 ethernet support for mach-real6410Darius Augulis2010-08-141-0/+63
| | | | | | | | | | | | | | | | | | | | | This patch is based on "[PATCH v2] Support for Real6410" Signed-off-by: Darius Augulis <augulis.darius@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * ARM: S3C64XX: Support for Real6410Darius Augulis2010-08-143-0/+93
| | | | | | | | | | | | | | | | | | | | | Add support for CoreWind Real6410 board, based on Samsung s3c6410 processor. Signed-off-by: Darius Augulis <augulis.darius@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | DMAENGINE: correct PL080 register header fileLinus Walleij2010-08-142-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This PL008 among all other variables named PL080 doesn't seem right. Fix it. Also add some missing defined that I use in the new PL08x driver. Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | ARM: SAMSUNG: Fix on build warning about dependency in KconfigKukjin Kim2010-08-141-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes on following build warning. warning: (PLAT_S5P && (ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_S5PV310) || ARCH_S3C64XX && <choice>) selects PLAT_SAMSUNG which has unmet direct dependencies (ARCH_S3C2410 || ARCH_S3C24A0 || ARCH_S3C64XX) Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | Merge branch 'for-linus/i2c-2636' of git://git.fluff.org/bjdooks/linuxLinus Torvalds2010-08-141-0/+9
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus/i2c-2636' of git://git.fluff.org/bjdooks/linux: i2c/nuc900: add i2c driver support for nuc900 i2c: Enable NXP LPC support in Kconfig i2c-pxa: fix compiler warning, due to missing const i2c: davinci: bus recovery procedure to clear the bus i2c: davinci: Add cpufreq support i2c: davinci: Add suspend/resume support i2c: davinci: Add helper functions for power management i2c: davinci: misc. cleanups: remove MOD_REG_BIT and IO_ADDRESS usage i2c: davinci: Fix smbus Oops with AIC33 usage
| * | i2c/nuc900: add i2c driver support for nuc900Wan ZongShun2010-08-111-0/+9
| |/ | | | | | | | | | | | | | | | | This patch is to add i2c driver support for nuc900. Signed-off-by: Wan ZongShun <mcuos.com@gmail.org> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Reviewed-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | Merge branch 'release' of ↵Linus Torvalds2010-08-133-5/+11
|\ \ | | | | | | | | | | | | | | | | | | | | | 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] Add latest crop of syscalls [IA64] Fix 64-bit atomic routines to return "long"
| * | [IA64] Add latest crop of syscallsTony Luck2010-08-132-1/+7
| | | | | | | | | | | | | | | | | | | | | Three new syscalls for 2.6.36: prlimit64, fanotify_init and fanotify_mark. Wire up the ia64 syscall table for them. Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | [IA64] Fix 64-bit atomic routines to return "long"Tony Luck2010-08-131-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These have been broken (returning "int") since the dawn of time. But there were no users that needed the whole value until commit 424acaaeb3a3932d64a9b4bd59df6cf72c22d8f3 rwsem: wake queued readers when writer blocks on active read lock made this change: - (rwsem_atomic_update(0, sem) & RWSEM_ACTIVE_MASK)) - /* Someone grabbed the sem already */ + rwsem_atomic_update(0, sem) < RWSEM_WAITING_BIAS) + /* Someone grabbed the sem for write already */ RWSEM_ACTIVE_MASK is 0xffffffffL, so the old code only looked at the low order 32-bits. The new code needs to see all 64 bits. Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Merge branch 'x86-uv-for-linus' of ↵Linus Torvalds2010-08-134-12/+27
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, UV: Make kdump avoid stack dumps - fix !CONFIG_KEXEC breakage x86, UV: Initialize BAU hub map x86, UV: Make kdump avoid stack dumps
| * | | x86, UV: Make kdump avoid stack dumps - fix !CONFIG_KEXEC breakageCliff Wickman2010-08-121-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This replaces Version 1 of this patch, which broke the build when CONFIG_KEXEC and CONFIG_CRASH_DUMP were configured off. In that case the storage for the 'in_crash_kexec' flag was never built. This version defines that flag as 0 if CONFIG_KEXEC is not set. The patch is tested with all combinations of those two options. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <E1OiZcw-0001Hb-2g@eag09.americas.sgi.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | | x86, UV: Initialize BAU hub mapCliff Wickman2010-08-011-12/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix uninitialized uvhub_mask: - An unitialized bit map variable was causing initialization of non-existant hubs (this one causes boot panics). - And the bit map was too small for large machines. This patch makes it dynamic in size. - Fix the case where socket 0 has no enabled cpu's. Don't assume every hub has a socket 0. - uv_init_per_cpu() should be __init. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: <stable@kernel.org> # for .35.x LKML-Reference: <E1Oeuyt-0004XS-0y@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86, UV: Make kdump avoid stack dumpsCliff Wickman2010-07-213-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UV NMI callback's should not write stack dumps when a kdump is to be written. When invoking the crash kernel to write a dump, kdump_nmi_shootdown_cpus() uses NMI's to get all the cpu's to save their register context and halt. But the NMI interrupt handler runs a callback list. This patch sets a flag to prevent any of those callbacks from interfering with the halt of the cpu. For UV, which currently has the only callback to which this is relevant, the uv_handle_nmi() callback should not do dumping of stacks. The 'in_crash_kexec' flag is defined as an extern in kdebug.h firstly because x2apic_uv_x.c includes it. Secondly because some future callback might need the flag to know that it should not enter the debugger. (Such a scenario was in fact present in the 2.6.32 kernel, SuSE distribution, where a call to kdb needed to be avoided.) Signed-off-by: Cliff Wickman <cpw@sgi.com> LKML-Reference: <E1ObLvt-0005UZ-Va@eag09.americas.sgi.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | | Merge branch 'fixes' of ↵Linus Torvalds2010-08-131-1/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] acpi-cpufreq: add missing __percpu markup
| * | | | [CPUFREQ] acpi-cpufreq: add missing __percpu markupNamhyung Kim2010-08-131-1/+1
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | acpi_perf_data is a percpu pointer but was missing __percpu markup. Add it. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Dave Jones <davej@redhat.com>
* | | | Mark arguments to certain syscalls as being constDavid Howells2010-08-1337-68/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark arguments to certain system calls as being const where they should be but aren't. The list includes: (*) The filename arguments of various stat syscalls, execve(), various utimes syscalls and some mount syscalls. (*) The filename arguments of some syscall helpers relating to the above. (*) The buffer argument of various write syscalls. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds2010-08-136-6/+37
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] partitions: fix build error in ibm partition detection code [S390] appldata: fix dev_get_stats 64 bit conversion [S390] wire up prlimit64 and fanotify* syscalls [S390] zcrypt: fix Kconfig dependencies [S390] sys_personality: follow u_long to unsigned int conversion [S390] dasd: fix format string types
| * | | | [S390] appldata: fix dev_get_stats 64 bit conversionHeiko Carstens2010-08-131-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix this warning: arch/s390/appldata/appldata_net_sum.c: In function 'appldata_get_net_sum_data': arch/s390/appldata/appldata_net_sum.c:89: warning: initialization from incompatible pointer type which was introduced with be1f3c2c027cc5ad735df6a45a542ed1db7ec48b "net: Enable 64-bit net device statistics on 32-bit architectures" Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | [S390] wire up prlimit64 and fanotify* syscallsHeiko Carstens2010-08-133-1/+31
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| * | | | [S390] sys_personality: follow u_long to unsigned int conversionHeiko Carstens2010-08-133-4/+4
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 485d527686850d68a0e9006dd9904f19f122485e "sys_personality: change sys_personality() to accept "unsigned int" instead of u_long" changed the syscall interface for sys_personality. Just follow the common code change in our arch code to avoid confusion. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2010-08-132-3/+7
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits) perf: Add back list_head data types perf ui hist browser: Fixup key bindings perf ui browser: Add ui_browser__show counterpart: __hide perf annotate: Cycle thru sorted lines with samples perf ui: Make SPACE work as PGDN in all browsers perf annotate: Sort by hottest lines in the TUI perf ui: Complete the breakdown of util/newt.c perf ui: Move hists browser to util/ui/browsers/ perf symbols: Ignore mapping symbols on ARM perf ui: Move map browser to util/ui/browsers/ perf ui: Move annotate browser to util/ui/browsers/ perf ui: Move ui_progress routines to separate file in util/ui/ perf ui: Move ui_helpline routines to separate file in util/ui/ perf ui: Shorten ui_browser member names perf, x86: P4 PMU -- update nmi irq statistics and unmask lvt entry properly perf ui: Start breaking down newt.c into multiple files perf tui: Introduce list_head based generic ui_browser refresh routine perf probe: Fix memory leaks in add_perf_probe_events perf probe: Fix to copy the type for raw parameters perf report: Speed up exit path ...
| * \ \ \ Merge branch 'linus' into perf/urgentIngo Molnar2010-08-122319-174785/+116665
| |\ \ \ \ | | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge reason: Fix upstream breakage introduced by: de5d9bf: Move list types from <linux/list.h> to <linux/types.h>. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | perf, x86: P4 PMU -- update nmi irq statistics and unmask lvt entry properlyCyrill Gorcunov2010-08-081-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case if last active performance counter is not overflowed at moment of NMI being triggered by another counter, the irq statistics may miss an update stage. As a more serious consequence -- apic quirk may not be triggered so apic lvt entry stay masked. Tested-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Stephane Eranian <eranian@google.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20100805150917.GA6311@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | oprofile: add support for Intel processor model 30Josh Hunt2010-08-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newer Intel processors identifying themselves as model 30 are not recognized by oprofile. <cpuinfo snippet> model : 30 model name : Intel(R) Xeon(R) CPU X3470 @ 2.93GHz </cpuinfo snippet> Running oprofile on these machines gives the following: + opcontrol --init + opcontrol --list-events oprofile: available events for CPU type "Intel Architectural Perfmon" See Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3B (Document 253669) Chapter 18 for architectural perfmon events This is a limited set of fallback events because oprofile doesn't know your CPU CPU_CLK_UNHALTED: (counter: all) Clock cycles when not halted (min count: 6000) INST_RETIRED: (counter: all) number of instructions retired (min count: 6000) LLC_MISSES: (counter: all) Last level cache demand requests from this core that missed the LLC (min count: 6000) Unit masks (default 0x41) ---------- 0x41: No unit mask LLC_REFS: (counter: all) Last level cache demand requests from this core (min count: 6000) Unit masks (default 0x4f) ---------- 0x4f: No unit mask BR_MISS_PRED_RETIRED: (counter: all) number of mispredicted branches retired (precise) (min count: 500) + opcontrol --shutdown Tested using oprofile 0.9.6. Signed-off-by: Josh Hunt <johunt@akamai.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
* | | | | Merge branch 'x86-uv-for-linus' of ↵Linus Torvalds2010-08-132-299/+608
|\ \ \ \ \ | | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, UV: Initialize BAU MMRs only on hubs with cpus x86, UV: Modularize BAU send and wait x86, UV: BAU broadcast to the local hub x86, UV: Correct BAU regular message type x86, UV: Remove BAU check for stay-busy x86, UV: Correct BAU discovery of hubs and sockets x86, UV: Correct BAU software acknowledge x86, UV: BAU structure rearranging x86, UV: Shorten access to BAU statistics structure x86, UV: Disable BAU on network congestion x86, UV: BAU tunables into a debugfs file x86, UV: Calculate BAU destination timeout
| * | | | x86, UV: Initialize BAU MMRs only on hubs with cpusCliff Wickman2010-07-171-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the initialization of MMRs UVH_LB_BAU_SB_ACTIVATION_CONTROL and UVH_BAU_DATA_BROADCAST on UV hubs that have no active cpus. Such initialization on hubs with no active cpus would result in a kernel page fault. This is not of real high priority, because we don't have any such systems (with UV hubs that have no active cpus). But they will be coming. Signed-off-by: Cliff Wickman <cpw@sgi.com> LKML-Reference: <E1OZmZN-0006cW-RC@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: Modularize BAU send and waitCliff Wickman2010-06-082-39/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Streamline the large uv_flush_send_and_wait() function by use of a couple of helper functions. And remove some excess comments. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004ay-IH@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: BAU broadcast to the local hubCliff Wickman2010-06-082-85/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the Broadcast Assist Unit driver use the BAU for TLB shootdowns of cpu's on the local uvhub. It was previously thought that IPI might be faster to the cpu's on the local hub. But the IPI operation would have to follow the completion of the BAU broadcast anyway. So we broadcast to the local uvhub in all cases except when the current cpu was the only local cpu in the mask. This simplifies uv_flush_send_and_wait() in that it returns either all shootdowns complete, or none. Adjust the statistics to account for shootdowns on the local uvhub. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004aq-G7@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: Correct BAU regular message typeCliff Wickman2010-06-081-14/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Broadcast Assist Unit messages have a regular or retry message type. The regular type was not being set, but needs to be, because the lack of a message type is sometimes used to identify an unused entry in the message queue. Also removing some excess comments. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004ak-Dy@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: Remove BAU check for stay-busyCliff Wickman2010-06-082-24/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove a faulty assumption that a long running BAU request has encountered a hardware problem and will never finish. Numalink congestion can make a request appear to have encountered such a problem, but it is not safe to cancel the request. If such a cancel is done but a reply is later received we can miss a TLB shootdown. We depend upon the max_bau_concurrent 'throttle' to prevent the stay-busy case from happening. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004ad-BV@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: Correct BAU discovery of hubs and socketsCliff Wickman2010-06-081-18/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct the initialization-time assumption of contigous blade numbers and of sockets numbered from zero. There may be hubs present with no cpu's enabled. There may be disabled sockets such that the active socket is not number zero. And assign a 'socket master' by assuming that a socket is a node. (it is not safe to extract socket number from an apicid) Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004aW-9S@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: Correct BAU software acknowledgeCliff Wickman2010-06-081-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct the acknowledgment and the reset of a BAU software-acknowledged message. A retry message should be testing only for timed-out resources (mask << 8). (And we delete a log message that might cause unnecessary concern) The acknowledge MMR is |--timed-out--|---pending--|, each is 8 bits. The IPI-driven reset of software acknowledge resources frees both timed out and pending resources. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004aP-7O@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: BAU structure rearrangingCliff Wickman2010-06-082-51/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move some structure definitions from the C code to the BAU header file, and change the organization of that header file a little. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004aI-54@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: Shorten access to BAU statistics structureCliff Wickman2010-06-082-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use a pointer from the per-cpu BAU control structure to the per-cpu BAU statistics structure. We nearly always know the first before needing the second. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004aB-2k@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: Disable BAU on network congestionCliff Wickman2010-06-082-3/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The numalink network can become so congested that TLB shootdown using the Broadcast Assist Unit becomes slower than using IPI's. In that case, disable the use of the BAU for a period of time. The period is tunable. When the period expires the use of the BAU is re-enabled. A count of these actions is added to the statistics file. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNy-0004a4-0a@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: BAU tunables into a debugfs fileCliff Wickman2010-06-082-56/+278
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the Broadcast Assist Unit driver's nine tuning values variable by making them accessible through a read/write debugfs file. The file will normally be mounted as /sys/kernel/debug/sgi_uv/bau_tunables. The tunables are kept in each cpu's per-cpu BAU structure. The patch also does a little name improvement, and corrects the reset of two destination timeout counters. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNx-0004Zx-Uo@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86, UV: Calculate BAU destination timeoutCliff Wickman2010-06-082-4/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Calculate the Broadcast Assist Unit's destination timeout period from the values in the relevant MMR's. Store it in each cpu's per-cpu BAU structure so that a destination timeout can be differentiated from a 'plugged' situation in which all software ack resources are already allocated and a timeout is pending. That case returns an immediate destination error. Signed-off-by: Cliff Wickman <cpw@sgi.com> Cc: gregkh@suse.de LKML-Reference: <E1OJvNx-0004Zq-RK@eag09.americas.sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | Merge branch 'x86/urgent' of ↵Linus Torvalds2010-08-134-109/+154
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, asm: Use a lower case name for the end macro in atomic64_386_32.S x86, asm: Refactor atomic64_386_32.S to support old binutils and be cleaner x86: Document __phys_reloc_hide() usage in __pa_symbol() x86, apic: Map the local apic when parsing the MP table.
| * | | | | x86, asm: Use a lower case name for the end macro in atomic64_386_32.SLuca Barbieri2010-08-121-18/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use a lowercase name for the end macro, which somehow fixes a binutils 2.16 problem. Signed-off-by: Luca Barbieri <luca@luca-barbieri.com> LKML-Reference: <tip-30246557a06bb20618bed906a06d1e1e0faa8bb4@git.kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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