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* [MIPS] vpe: handle halting TCs in an errata safe way.Nigel Stephens2007-11-161-4/+10
| | | | | | | Adds a JR.HB after halting a TC, to ensure that the TC has really halted. only modifies the TCSTATUS register when the TC is safely halted. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: Stop timers before programming next even.Ralf Baechle2007-11-162-0/+2
| | | | | | | | | | | | We have no guarantee by the generic time code that the timer is stopped when the ->next_event method is called. Modifying the Timer Initial Count register while the timer is enabled has UNPREDICTABLE effect according to the BCM1250/BCM1125/BCM1125H User Manual. So stop the timer before reprogramming. This is a paranoia fix; no ill effects have been observed previously. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: Increase minimum oneshot timer interval to two ticks.Ralf Baechle2007-11-162-2/+2
| | | | | | | | | | | | | | | | | For the old minimum of a single tick a value of zero would be programmed into the init value register which in the BCM1250/BCM1125/BCM1125H User Manual in the Timer Special Cases section is documented to have UNPREDICTABLE effect. Observable sympthoms of this bug were hangs of several seconds on the console during bootup and later if both dyntick and highres timer options were activated. In theory contiguous mode of the timers is also affected but in an act of hopeless lack of realism I'll assume nobody will ever configure a KERNEL for HZ > 500kHz but if so I leave that to evolution to sort out. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Lasat: Fix overlap of interrupt number ranges.Yoichi Yuasa2007-11-162-23/+31
| | | | | | | The range of MIPS_CPU IRQ and the range of LASAT IRQ overlap. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SNI PCIT CPLUS: workaround for b0rked irq wiring of onboard PCI bus 1Thomas Bogendoerfer2007-11-161-1/+22
| | | | | Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix shadow register support.Ralf Baechle2007-11-164-74/+10
| | | | | | | | | | | | | Shadow register support would not possibly have worked on multicore systems. The support code for it was also depending not on MIPS R2 but VSMP or SMTC kernels even though it makes perfect sense with UP kernels. SR sets are a scarce resource and the expected usage pattern is that users actually hardcode the register set numbers in their code. So fix the allocator by ditching it. Move the remaining CPU probe bits into the generic CPU probe. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix typo in R3000 TRACE_IRQFLAGS codeAtsushi Nemoto2007-11-161-1/+1
| | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: Replace use of removed IO_SPACE_BASE with IOADDR.Ralf Baechle2007-11-162-6/+6
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] iounmap if in vr41xx_pciu_init() pci clock is over 33MHzRoel Kluin2007-11-161-0/+1
| | | | | | | | | iounmap if pci clock is over 33MHz. Cosmetic because the iomap() in this case is just a bit of address magic. Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] BCM1480: Remove duplicate acknowledge of timer interrupt.Ralf Baechle2007-11-161-13/+2
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: pin timer interrupt to their cores.Ralf Baechle2007-11-162-0/+6
| | | | | | Or strange things will happen. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Qemu: Add early printk, your friend in a cold night.Ralf Baechle2007-11-165-5/+35
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Convert reference to mem_map to pfn_to_page().Ralf Baechle2007-11-161-1/+1
| | | | | | This was crashing the combination of highmem and sparsemem. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: resurrect old cache hack.Ralf Baechle2007-11-161-1/+6
| | | | | | | | | | | | | | | | | | | The recent switch of the Sibyte SOCs from the processor specific cache managment code in c-sb1.c to c-r4k.c lost this old hack [MIPS] Hack for SB1 cache issues Removing flush_icache_page a while ago broke SB1 which was using an empty flush_data_cache_page function. This glues things well enough so a more efficient but also more intrusive solution can be found later. Signed-Off-By: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> in the hope it was no longer needed. As it turns it still is so resurrect it until there is a better solution. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86Linus Torvalds2007-11-1513-1171/+578
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86: x86: enable "make ARCH=x86" x86: do not use $(ARCH) when not needed kconfig: use $K64BIT to set 64BIT with all*config targets kconfig: add helper to set config symbol from environment variable kconfig: factor out code in confdata.c x86: move the rest of the menu's to Kconfig x86: move all simple arch settings to Kconfig x86: copy x86_64 specific Kconfig symbols to Kconfig.i386 x86: add X86_64 dependency to x86_64 specific symbols in Kconfig.x86_64 x86: add X86_32 dependency to i386 specific symbols in Kconfig.i386 x86: arch/x86/Kconfig.cpu unification x86: start unification of arch/x86/Kconfig.* x86: unification of cfufreq/Kconfig
| * x86: enable "make ARCH=x86"Sam Ravnborg2007-11-123-41/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After unification of the Kconfig files and introducing K64BIT support in kconfig it required only trivial changes to enable "make ARCH=x86". With this patch you can build for x86_64 in several ways: 1) make ARCH=x86_64 2) make ARCH=x86 K64BIT=y 3) make ARCH=x86 menuconfig => select 64-bit Likewise for i386 with the addition that i386 is default is you say ARCH=x86. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: do not use $(ARCH) when not neededSam Ravnborg2007-11-127-16/+23
| | | | | | | | | | | | | | | | | | | | | | For x86 ARCH may say i386 or x86_64 and soon x86. Rely on CONFIG_X64_32 to select between 32/64 or just hardcode the value as appropriate. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: move the rest of the menu's to KconfigSam Ravnborg2007-11-123-1543/+1052
| | | | | | | | | | | | | | | | | | | | With this patch we have all the Kconfig file shared between i386 and x86_64. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: move all simple arch settings to KconfigSam Ravnborg2007-11-123-234/+136
| | | | | | | | | | | | | | | | | | | | Most of the arch settings were equal so combine them in the first part of Kconfig. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: copy x86_64 specific Kconfig symbols to Kconfig.i386Sam Ravnborg2007-11-122-23/+198
| | | | | | | | | | | | | | | | | | | | No functional changes. A prepatory step towards full unification. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: add X86_64 dependency to x86_64 specific symbols in Kconfig.x86_64Sam Ravnborg2007-11-121-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | To ease unification of Kconfig.i386 and Kconfig.x86_64 add X86_64 dependencies to all x86_64 specific symbols. This patch introduce no functional changes but is one step towards unification. This smaller step is used to ease review of the patch set. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: add X86_32 dependency to i386 specific symbols in Kconfig.i386Sam Ravnborg2007-11-121-37/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | To ease unification of Kconfig.i386 and Kconfig.x86_64 add X86_32 dependencies to all i386 specific symbols. This patch introduce no functional changes but is one step towards unification. This smaller step is used to ease review of the patch set. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: arch/x86/Kconfig.cpu unificationSam Ravnborg2007-11-124-134/+95
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move all CPU definitions to Kconfig.cpu Always define X86_MINIMUM_CPU_FAMILY and do the obvious code cleanup in boot/cpucheck.c Comments from: Adrian Bunk <bunk@kernel.org> incorporated. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Adrian Bunk <bunk@kernel.org> Cc: Brian Gerst <bgerst@didntduck.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: start unification of arch/x86/Kconfig.*Sam Ravnborg2007-11-123-458/+404
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This step introduces the file arch/x86/Kconfig which contains all the menu's from "Power Management" and below. The main part of the new Kconfig file is shared and the remaining i386/x86_64 specific symbols are covered by dependencies. A x86_64 allmodconfig build did not show any differences. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
| * x86: unification of cfufreq/KconfigSam Ravnborg2007-11-124-132/+49
| | | | | | | | | | | | | | | | | | | | | | Merge the two Kconfig files to a single file. Checked using make allmodconfig for x86_64. No changes in build. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Adrian Bunk <bunk@kernel.org> Cc: Dave Jones <davej@codemonkey.org.uk>
* | CRISv10 fasttimer: Scrap INLINE and name timeval_cmp betterJesper Nilsson2007-11-151-9/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Scrap the local __INLINE__ macro, and rename timeval_cmp to fasttime_cmp. Inline macro was completely unnecessary since the macro was defined locally to be inline. timeval_cmp was inaccurately named since it does comparison on struct fasttimer_t and not on struct timeval. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | CRISv10 memset library add lineendings to asmJesper Nilsson2007-11-151-41/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add \n\ at end of lines inside asm statement to avoid warning. No change except adding \n\ to end of line and correcting whitespace has been done. Removes warning about multi-line string literals when compiling arch/cris/arch-v10/lib/memset.c Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | CRISv10 string library add lineendings to asmJesper Nilsson2007-11-151-27/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add \n\ at end of lines inside asm statement to avoid warning. No change except adding \n\ to end of line and correcting whitespace has been done. Removes warning about multi-line string literals when compiling arch/cris/arch-v10/lib/string.c Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | CRISv10 usercopy library add lineendings to asmJesper Nilsson2007-11-151-157/+157
| | | | | | | | | | | | | | | | | | | | | | | | Removes warning when compiling arch/cris/arch-v10/lib/usercopy.c No change except adding \n\ on the end of the lines has been done. Removes warning about multi-line string literals. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | CRISv32: add cache flush operationsJesper Nilsson2007-11-152-0/+127
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are needed due to a cache bug, and can be used to make sure that the DMA descriptors are flushed to memory and can be safely handled by DMA. flush_dma_descr - Flush one DMA descriptor. flush_dma_list - Flush a complete list of DMA descriptors. cris_flush_cache - Flush the complete cache. cris_flush_cache_range - Flush only the specified range Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | CRISv10 improve and bugfix fasttimerJesper Nilsson2007-11-151-201/+114
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve and bugfix CRIS v10 fast timers. - irq_handler_t now only takes two arguments. - Keep interrupts disabled as long as we have a reference to the fasttimer list and only enable them while doing the callback. del_fast_timer may be called from other interrupt context. - Fix bug where debug code could return without calling local_irq_restore. - Use jiffies instead of usec (change from struct timeval to fasttime_t). - Don't initialize static variables to zero. - Remove obsolete #ifndef DECLARE_WAITQUEUE code. - fast_timer_init should be __initcall. - Change status/debug variables to unsigned. - Remove CVS log and CVS id. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | CRISv10: fix timer interrupt parametersJesper Nilsson2007-11-151-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix timer interrupt parameters for CRIS v10. - irq_handler_t only takes two arguments, use get_irq_regs to get regs for profiling. - Call update_process_times. - Remove CVS tag. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | CRIS: remove MTD_AMSTD and MTD_OBSOLETE_CHIPS take twoJesper Nilsson2007-11-156-17/+8
| | | | | | | | | | | | | | | | | | | | | | Remove MTD_AMDSTD and MTD_OBSOLETE_CHIPS from defconfig, Kconfig and code, instead we'll use MTD_CFI or MTD_JEDECPROBE. [akpm@linux-foundation.org: codingl-style cleanups] Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris: ARRAY_SIZE() cleanupAlex Unleashed2007-11-155-9/+7
| | | | | | | | | | | | | | | | | | | | I'm converting most array size calculations under arch/ to use ARRAY_SIZE(). This is the patch for CRIS. Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org> Cc: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris build fixes: defconfig updatesJesper Nilsson2007-11-151-43/+33
| | | | | | | | | | | | | | | | | | | | Remove some unused config lines, and add some others that needs to be off for a succesful compile. This is the minimal set of changes for 2.6.23. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris build fixes: fix crisksyms.cJesper Nilsson2007-11-151-14/+3
| | | | | | | | | | | | | | | | | | | | - Add __negdi2 to exported symbols. - Remove string functions from exported symbols. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris build fixes: setup.c needs param.hJesper Nilsson2007-11-151-0/+1
| | | | | | | | | | | | | | | | | | Include linux/param.h for HZ. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris build fixes: fixes in arch/cris/kernel/time.cJesper Nilsson2007-11-151-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | - Remove debug print. - Change #if to #ifdef to avoid compile time warning if CONFIG_PROFILING isn't set. - Number of parameters to profile_tick has changed, drop the regs parameter. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris build fixes: corrected and improved NMI and IRQ handlingJesper Nilsson2007-11-156-27/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Corrects compile errors and the following: - Remove oldset parameter from do_signal and do_notify_resume. - Modified to fit new consolidated IRQ handling code. - Reverse check order between external nmi and watchdog nmi to avoid false watchdog oops in case of a glitch on the nmi pin. - Return from an pin-generated NMI the same way as for other interrupts. - Moved blocking of ethernet rx/tx irq from ethernet interrupt handler to low-level asm interrupt handlers. Fixed in the multiple interrupt handler also. - Add space for thread local storage in thread_info struct. - Add NO_DMA to Kconfig, and include arch specific Kconfig using arch independent path. Include subsystem Kconfigs for pcmcia, usb, i2c, rtc and pci. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris build fixes: sys_cris.c needs fs.hJesper Nilsson2007-11-151-0/+1
| | | | | | | | | | | | | | | | | | Include linux/fs.h, needed for do_pipe. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris build fixes: irq fixesJesper Nilsson2007-11-152-2/+8
| | | | | | | | | | | | | | | | | | | | | | - New file include/asm-cris/irq_regs.h. - Change handling of registers for do_IRQ. - Add GENERIC_HARDIRQS to Kconfig. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris build fixes: Add missing syscallsJesper Nilsson2007-11-151-0/+36
| | | | | | | | | | | | | | | | | | Add missing syscalls to cris architecture. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | x86: don't call mce_create_device on CPU_UP_PREPAREAndreas Herrmann2007-11-151-7/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix regression introduced with d435d862baca3e25e5eec236762a43251b1e7ffc ("cpu hotplug: mce: fix cpu hotplug error handling"). A CPU which was not brought up during boot (using maxcpus and additional_cpus parameters) couldn't be onlined anymore. For such a CPU it seemed that MCE was not supported during CPU_UP_PREPARE-time which caused mce_cpu_callback to return NOTIFY_BAD to notifier_call_chain. To fix this we: - call mce_create_device for CPU_ONLINE event (instead of CPU_UP_PREPARE), - avoid mce_remove_device() for the CPU that is not correctly initialized by mce_create_device() failure, - make mce_cpu_callback always return NOTIFY_OK for CPU_ONLINE event. Because CPU_ONLINE callback return value is always ignored. [akinobu.mita@gmail.com: avoid mce_remove_device() for not initialized device] [akinobu.mita@gmail.com: make mce_cpu_callback always return NOTIFY_OK] Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | x86: disable preemption in delay_tsc()Andrew Morton2007-11-152-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Marin Mitov points out that delay_tsc() can misbehave if it is preempted and rescheduled on a different CPU which has a skewed TSC. Fix it by disabling preemption. (I assume that the worst-case behaviour here is a stall of 2^32 cycles) Cc: Andi Kleen <ak@suse.de> Cc: Marin Mitov <mitov@issp.bas.bg> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | uml: fix build for !CONFIG_PRINTKJeff Dike2007-11-151-1/+12
| | | | | | | | | | | | | | | | | | | | Handle the case of CONFIG_PRINTK being disabled. This requires a do-nothing stub to be present in arch/um/include/user.h so that we don't get references to printk from libc code. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | uml: fix build for !CONFIG_TCPJeff Dike2007-11-151-2/+12
| | | | | | | | | | | | | | | | | | Make UML build in the absence of CONFIG_INET by making the inetaddr_notifier registration depend on it. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | uml: remove last include of libc asm/page.hJeff Dike2007-11-151-1/+0
| | | | | | | | | | | | | | | | asm/page.h is disappearing from the libc headers and we don't need it anyway. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | uml: fix spurious IRQ testingJeff Dike2007-11-151-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | The spurious IRQ testing in request_irq is mishandled in um_request_irq, which sets the incoming file descriptors non-blocking only after request_irq succeeds. This results in the spurious irq calling read on a blocking descriptor, and a hang. Fixed by reversing the O_NONBLOCK setting and the request_irq call. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | mips: undo locking on error path returnsRoel Kluin2007-11-152-0/+3
| | | | | | | | | | | | | | | | [akpm@linux-foundation.org: coding-style cleanups] Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | cris gpio: undo locks before returningRoel Kluin2007-11-151-4/+11
| | | | | | | | | | | | | | Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Cc: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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