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2009-04-15Merge 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: pseries/dtl.c should include asm/firmware.h powerpc: Fix data-corrupting bug in __futex_atomic_op powerpc/pseries: Set error_state to pci_channel_io_normal in eeh_report_reset() powerpc: Allow 256kB pages with SHMEM powerpc: Document new FSL I2C bindings and cleanup powerpc/mm: Fix compile warning powerpc/85xx: TQM8548: update defconfig powerpc/85xx: TQM8548: use proper phy-handles for enet2 and enet3 powerpc/85xx: TQM85xx: correct address of LM75 I2C device nodes powerpc: Add support for early tlbilx opcode powerpc: Fix tlbilx opcode
2009-04-15acpi-cpufreq: fix 'smp_call_function_many()' confusionLinus Torvalds
It turns out that 'smp_call_function_many()' doesn't work at all like 'smp_call_function_single()', and my change to Andrew's patch to use it rather than a loop over all CPU's acpi-cpufreq doesn't work. My bad. 'smp_call_function_many()' has two "features" (aka "documented bugs"): (a) it needs to be called with preemption disabled, because it uses smp_processor_id() without guarding the CPU lookup with 'get_cpu()' and 'put_cpu()' like the 'single' variant does. (b) even if the current CPU is part of the CPU mask, it won't do the call on that CPU. Still, we're better off trying to use 'smp_call_function_many()' than looping over CPU's, since it at least in theory allows us to use a broadcast IPI and do it all in parallel. So let's just work around the silly semantic bugs in that function. Reported-and-tested-by: Ali Gholami Rudi <ali@rudi.ir> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org>, Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-15powerpc: pseries/dtl.c should include asm/firmware.hSachin Sant
A randconfig build on powerpc failed with: dtl.c: In function 'dtl_init': dtl.c:238: error: implicit declaration of function 'firmware_has_feature' dtl.c:238: error: 'FW_FEATURE_SPLPAR' undeclared (first use in this function) - We need firmware.h for these definitions. Signed-off-by: Sachin Sant <sachinp@in.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-15powerpc: Fix data-corrupting bug in __futex_atomic_opPaul Mackerras
Richard Henderson pointed out that the powerpc __futex_atomic_op has a bug: it will write the wrong value if the stwcx. fails and it has to retry the lwarx/stwcx. loop, since 'oparg' will have been overwritten by the result from the first time around the loop. This happens because it uses the same register for 'oparg' (an input) as it uses for the result. This fixes it by using separate registers for 'oparg' and 'ret'. Cc: stable@kernel.org Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-15powerpc/pseries: Set error_state to pci_channel_io_normal in eeh_report_reset()Mike Mason
While adding native EEH support to Emulex and Qlogic drivers, it was discovered that dev->error_state was set to pci_io_channel_normal too late in the recovery process. These drivers rely on error_state to determine if they can access the device in their slot_reset callback, thus error_state needs to be set to pci_io_channel_normal in eeh_report_reset(). Below is a detailed explanation (courtesy of Richard Lary) as to why this is necessary. Background: PCI MMIO or DMA accesses to a frozen slot generate additional EEH errors. If the number of additional EEH errors exceeds EEH_MAX_FAILS the adapter will be shutdown. To avoid triggering excessive EEH errors and an undesirable adapter shutdown, some drivers use the pci_channel_offline(dev) wrapper function to return a Boolean value based on the value of pci_dev->error_state to determine if PCI MMIO or DMA accesses are safe. If the wrapper returns TRUE, drivers must not make PCI MMIO or DMA access to their hardware. The pci_dev structure member error_state reflects one of three values, 1) pci_channel_io_normal, 2) pci_channel_io_frozen, 3) pci_channel_io_perm_failure. Function pci_channel_offline(dev) returns TRUE if error_state is pci_channel_io_frozen or pci_channel_io_perm_failure. The EEH driver sets pci_dev->error_state to pci_channel_io_frozen at the point where the PCI slot is frozen. Currently, the EEH driver restores dev->error_state to pci_channel_io_normal in eeh_report_resume() before calling the driver's resume callback. However, when the EEH driver calls the driver's slot_reset callback() from eeh_report_reset(), it incorrectly indicates the error state is still pci_channel_io_frozen. Waiting until eeh_report_resume() to restore dev->error_state to pci_channel_io_normal is too late for Emulex and QLogic FC drivers and any other drivers which are designed to use common code paths in these two cases: i) those called after the driver's slot_reset callback() and ii) those called after the PCI slot is frozen but before the driver's slot_reset callback is called. Case i) all driver paths executed to reinitialize the hardware after a reset and case ii) all code paths executed by driver kernel threads that run asynchronous to the main driver thread, such as interrupt handlers and worker threads to process driver work queues. Emulex and QLogic FC drivers are designed with common code paths which require that pci_channel_offline(dev) reflect the true state of the hardware. The state transitions that the hardware takes from Normal Operations to Slot Frozen to Reset to Normal Operations are documented in the Power Architecture™ Platform Requirements+ (PAPR+) in Table 75. PE State Control. PAPR defines the following 3 states: 0 -- Not reset, Not EEH stopped, MMIO load/store allowed, DMA allowed (Normal Operations) 1 -- Reset, Not EEH stopped, MMIO load/store disabled, DMA disabled 2 -- Not reset, EEH stopped, MMIO load/store disabled, DMA disabled (Slot Frozen) An EEH error places the slot in state 2 (Frozen) and the adapter driver is notified that an EEH error was detected. If the adapter driver returns PCI_ERS_RESULT_NEED_RESET, the EEH driver calls eeh_reset_device() to place the slot into state 1 (Reset) and eeh_reset_device completes by placing the slot into State 0 (Normal Operations). Upon return from eeh_reset_device(), the EEH driver calls eeh_report_reset, which then calls the adapter's slot_reset callback. At the time the adapter's slot_reset callback is called, the true state of the hardware is Normal Operations and should be accurately reflected by setting dev->error_state to pci_channel_io_normal. The current implementation of EEH driver does not do so and requires this change to correct this deficiency. Signed-off-by: Mike Mason <mmlnx@us.ibm.com> Acked-by: Linas Vepstas <linasvepstas@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-15powerpc: Allow 256kB pages with SHMEMHugh Dickins
Now that shmem's divisions by zero and SHMEM_MAX_BYTES are fixed, let powerpc 256kB pages coexist with CONFIG_SHMEM again. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-14x86 microcode: revert some work_on_cpuHugh Dickins
Revert part of af5c820a3169e81af869c113e18ec7588836cd50 ("x86: cpumask: use work_on_cpu in arch/x86/kernel/microcode_core.c") That change is causing only one Intel CPU's microcode to be updated e.g. microcode: CPU3 updated from revision 0x9 to 0x17, date = 2005-04-22 where before it announced that also for CPU0 and CPU1 and CPU2. We cannot use work_on_cpu() in the CONFIG_MICROCODE_OLD_INTERFACE code, because Intel's request_microcode_user() involves a copy_from_user() from /sbin/microcode_ctl, which therefore needs to be on that CPU at the time. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-14Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds
* 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Add missing FILE tag to MAINTAINERS microblaze: remove duplicated #include's microblaze: struct device - replace bus_id with dev_name() microblaze: Simplify copy_thread() microblaze: Add TIMESTAMPING constants to socket.h microblaze: Add missing empty ftrace.h file microblaze: Fix problem with removing zero length files
2009-04-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Add in PCI bus for DMA API debugging. sh: Pre-allocate a reasonable number of DMA debug entries. sh: sh7786: modify usb setup timeout judgment bug. MAINTAINERS: Update sh architecture file patterns. sh: ap325: use edge control for ov772x camera sh: Plug in support for ARCH=sh64 using sh SRCARCH. sh: urquell: Fix up address mapping in board comments. sh: Add support for DMA API debugging. sh: Provide cpumask_of_pcibus() to fix NUMA build. sh: urquell: Add board comment sh: wire up sys_preadv/sys_pwritev() syscalls. sh: sh7785lcr: fix PCI address map for 32-bit mode sh: intc: Added resume from hibernation support to the intc
2009-04-14parport_pc: Fix build failure drivers/parport/parport_pc.c for powerpcTony Breeds
In commit 51dcdfec6a274afc1c6fce180d582add9ff512c0 ("parport: Use the PCI IRQ if offered") parport_pc_probe_port() gained an irqflags arg. This isn't being supplied on powerpc. This patch make powerpc fallback to the old behaviour, that is using "0" for irqflags. Fixes build failure: In file included from drivers/parport/parport_pc.c:68: arch/powerpc/include/asm/parport.h: In function 'parport_pc_find_nonpci_ports': arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' make[3]: *** [drivers/parport/parport_pc.o] Error 1 Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-14parport: Fix various uses of parport_pcAlan Cox
These got overlooked first time around. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-14microblaze: remove duplicated #include'sHuang Weiyi
Remove duplicated #include's in arch/microblaze/include/asm/io.h arch/microblaze/kernel/prom.c arch/microblaze/kernel/ptrace.c arch/microblaze/kernel/signal.c arch/microblaze/kernel/sys_microblaze.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-14microblaze: struct device - replace bus_id with dev_name()Michal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-14microblaze: Simplify copy_thread()Michal Simek
Removing nr parameter from copy_tread function commit 6f2c55b843836d26528c56a0968689accaedbc67 Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-14microblaze: Add TIMESTAMPING constants to socket.hMichal Simek
This changes was introduce with commit: cb9eff097831007afb30d64373f29d99825d0068 net: new user space API for time stamping of incoming and outgoing packets Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-14microblaze: Add missing empty ftrace.h fileMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-14microblaze: Fix problem with removing zero length filesMichal Simek
Adding one new line was recommended solution. Test with make distclean Tested-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-04-14sh: Add in PCI bus for DMA API debugging.Paul Mundt
This adds in the pci_bus_type for DMA API debug. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-14sh: Pre-allocate a reasonable number of DMA debug entries.Paul Mundt
This prevents the DMA API debugging from running out of entries right away on boot. Defines 4096 entries by default, which while a bit on the heavy side, ought to leave enough breathing room for some time. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-13Fix quilt merge error in acpi-cpufreq.cLinus Torvalds
We ended up incorrectly using '&cur' instead of '&readin' in the work_on_cpu() -> smp_call_function_single() transformation in commit 01599fca6758d2cd133e78f87426fc851c9ea725 ("cpufreq: use smp_call_function_[single|many]() in acpi-cpufreq.c"). Andrew explains: "OK, the acpi tree went and had conflicting changes merged into it after I'd written the patch and it appears that I incorrectly reverted part of 18b2646fe3babeb40b34a0c1751e0bf5adfdc64c while fixing the resulting rejects. Switching it to `readin' looks correct." Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-13Merge branch 'for-rc1/xen/core' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen * 'for-rc1/xen/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: add FIX_TEXT_POKE to fixmap xen: honour VCPU availability on boot xen: clean up gate trap/interrupt constants xen: set _PAGE_NX in __supported_pte_mask before pagetable construction xen: resume interrupts before system devices. xen/mmu: weaken flush_tlb_other test xen/mmu: some early pagetable cleanups Xen: Add virt_to_pfn helper function x86-64: remove PGE from must-have feature list xen: mask XSAVE from cpuid NULL noise: arch/x86/xen/smp.c xen: remove xen_load_gdt debug xen: make xen_load_gdt simpler xen: clean up xen_load_gdt xen: split construction of p2m mfn tables from registration xen: separate p2m allocation from setting xen: disable preempt for leave_lazy_mmu
2009-04-14sh: sh7786: modify usb setup timeout judgment bug.Kuninori Morimoto
This corrects a race with the PHY RST bit not being set properly if the PLL status changes right before timeout. This resulted in it potentially failing even if the device came up in time. Special thanks to Mr. Juha Leppanen and Iwamatsu-san for reporting this out and reviewing it. Reported-by: Juha Leppanen <juha_motorsportcom@luukku.com> Reviewed-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Tested-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-13Replace all DMA_nBIT_MASK macro with DMA_BIT_MASK(n)Yang Hongyang
This is the second go through of the old DMA_nBIT_MASK macro,and there're not so many of them left,so I put them into one patch.I hope this is the last round. After this the definition of the old DMA_nBIT_MASK macro could be removed. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Greg KH <greg@kroah.com> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-14Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
2009-04-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (22 commits) Input: i8042 - add HP DV9700 to the noloop list Input: arrange drivers/input/misc/Makefile in alphabetical order Input: add AD7879 Touchscreen driver Input: add AD7877 touchscreen driver Input: bf54x-keys - fix typo in warning Input: add driver for S1 button of rb532 Input: generic driver for rotary encoders on GPIOs Input: hilkbd - fix crash when removing hilkbd module Input: atkbd - add quirk for Fujitsu Siemens Amilo PA 1510 Input: atkbd - consolidate force release quirk setup Input: add accelerated touchscreen support for Marvell Zylonite Input: ucb1400_ts, mainstone-wm97xx - add BTN_TOUCH events Input: wm97xx - use disable_irq_nosync() for Mainstone Input: wm97xx - add BTN_TOUCH event to wm97xx to use it with Android Input: fix polling of /proc/bus/input/devices Input: psmouse - add newline to OLPC HGPK touchpad debugging Input: ati_remote2 - check module params Input: ati_remote2 - add per device attrs Input: ati_remote2 - complete suspend support Input: stop autorepeat timer on key release ...
2009-04-13Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: add linux kernel support for YMM state x86: fix wrong section of pat_disable & make it static x86: Fix section mismatches in mpparse x86: fix set_fixmap to use phys_addr_t x86: Document get_user_pages_fast() x86, intr-remap: fix eoi for interrupt remapping without x2apic
2009-04-13cpufreq: use smp_call_function_[single|many]() in acpi-cpufreq.cAndrew Morton
Atttempting to rid us of the problematic work_on_cpu(). Just use smp_call_fuction_single() here. This repairs a 10% sysbench(oltp)+mysql regression which Mike reported, due to commit 6b44003e5ca66a3fffeb5bc90f40ada2c4340896 Author: Andrew Morton <akpm@linux-foundation.org> Date: Thu Apr 9 09:50:37 2009 -0600 work_on_cpu(): rewrite it to create a kernel thread on demand It seems that the kernel calls these acpi-cpufreq functions at a quite high frequency. Valdis Kletnieks also reports that this causes 70-90 forks per second on his hardware. Cc: Valdis.Kletnieks@vt.edu Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Len Brown <len.brown@intel.com> Cc: Zhao Yakui <yakui.zhao@intel.com> Acked-by: Dave Jones <davej@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Tested-by: Mike Galbraith <efault@gmx.de> Cc: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Ingo Molnar <mingo@elte.hu> [ Made it use smp_call_function_many() instead of looping over cpu's with smp_call_function_single() - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-13Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: percpu: unbreak alpha percpu mutex: have non-spinning mutexes on s390 by default
2009-04-13Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (60 commits) microblaze_v8: Add MAINTAINERS fragment microblaze_v8: Uartlite for Microblaze microblaze_v8: Makefiles for Microblaze cpu microblaze_v8: Kconfig patches microblaze_v8: Interrupt handling and timer support microblaze_v8: syscalls.h microblaze_v8: pci headers microblaze_v8: Kbuild file microblaze_v8: string.h thread_info.h microblaze_v8: unistd.h microblaze_v8: fcntl.h sockios.h ucontext.h microblaze_v8: pool.h socket.h microblaze_v8: device.h param.h topology.h microblaze_v8: headers files entry.h current.h mman.h registers.h sembuf.h microblaze_v8: namei.h microblaze_v8: gpio.h, serial.h microblaze_v8: headers simple files - empty or redirect to asm-generic microblaze_v8: sigcontext.h siginfo.h microblaze_v8: termbits.h termios.h microblaze_v8: stats headers ...
2009-04-13sh: ap325: use edge control for ov772x cameraKuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-12x86: add linux kernel support for YMM stateSuresh Siddha
Impact: save/restore Intel-AVX state properly between tasks Intel Advanced Vector Extensions (AVX) introduce 256-bit vector processing capability. More about AVX at http://software.intel.com/sites/avx Add OS support for YMM state management using xsave/xrstor infrastructure to support AVX. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1239402084.27006.8057.camel@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-12x86: fix wrong section of pat_disable & make it staticMarcin Slusarz
pat_disable cannot be __cpuinit anymore because it's called from pat_init and the callchain looks like this: pat_disable [cpuinit] <- pat_init <- generic_set_all <- ipi_handler <- set_mtrr <- (other non init/cpuinit functions) WARNING: arch/x86/mm/built-in.o(.text+0x449e): Section mismatch in reference from the function pat_init() to the function .cpuinit.text:pat_disable() The function pat_init() references the function __cpuinit pat_disable(). This is often because pat_init lacks a __cpuinit annotation or the annotation of pat_disable is wrong. Non CONFIG_X86_PAT version of pat_disable is static inline, so this version can be static too (and there are no callers outside of this file). Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> LKML-Reference: <49DFB055.6070405@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-12x86: Fix section mismatches in mpparseRakib Mullick
Impact: fix section mismatch In arch/x86/kernel/mpparse.c, smp_reserve_bootmem() has been called and also refers to a function which is in .init section. Thus causes the first warning. And check_irq_src() also requires an __init, because it refers to an .init section. Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <b9df5fa10904102004g51265d9axc8d07278bfdb6ba0@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-11sh: Plug in support for ARCH=sh64 using sh SRCARCH.Paul Mundt
This adds in support for building with ARCH=sh64 using the sh SRCARCH. This tidies up the randconfig generation somewhat to make sure that we don't end up with impossible configurations, and without having to rely on things like KCONFIG_ALLCONFIG to detect the proper CPU support subset. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-10sh: urquell: Fix up address mapping in board comments.Kuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-10x86: fix set_fixmap to use phys_addr_tMasami Hiramatsu
Impact: fix kprobes crash on 32-bit with RAM above 4G Use phys_addr_t for receiving a physical address argument instead of unsigned long. This allows fixmap to handle pages higher than 4GB on x86-32. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: systemtap-ml <systemtap@sources.redhat.com> Cc: Gary Hade <garyhade@us.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <49DE3695.6040800@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-mn10300: Separate out the proc- and unit-specific header directories from the general Move arch headers from include/asm-mn10300/ to arch/mn10300/include/asm/.
2009-04-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-frvLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-frv: FRV: Move to arch/frv/include/asm/ FRV: Fix indentation errors to keep git-am happy when moving arch header files
2009-04-10Separate out the proc- and unit-specific header directories from the generalDavid Howells
MN10300 arch headers and place them instead in the same directories as contain the .c files for the processor and unit implementations. This permits the symlinks include/asm/proc and include/asm/unit to be dispensed with. This does, however, require that #include <asm/proc/xxx.h> be converted to #include <proc/xxx.h> and similarly for asm/unit -> unit. Signed-off-by: David Howells <dhowells@redhat.com>
2009-04-10Move arch headers from include/asm-mn10300/ to arch/mn10300/include/asm/.David Howells
Signed-off-by: David Howells <dhowells@redhat.com>
2009-04-10x86: Document get_user_pages_fast()Andy Grover
While better than get_user_pages(), the usage of gupf(), especially the return values and the fact that it can potentially only partially pin the range, warranted some documentation. Signed-off-by: Andy Grover <andy.grover@oracle.com> Cc: npiggin@suse.de Cc: akpm@linux-foundation.org LKML-Reference: <1239320729-3262-1-git-send-email-andy.grover@oracle.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-10x86, intr-remap: fix eoi for interrupt remapping without x2apicWeidong Han
To simplify level irq migration in the presence of interrupt-remapping, Suresh used a virtual vector (io-apic pin number) to eliminate io-apic RTE modification. Level triggered interrupt will appear as an edge to the local apic cpu but still as level to the IO-APIC. So in addition to do the local apic EOI, it still needs to do IO-APIC directed EOI to clear the remote IRR bit in the IO-APIC RTE. Pls refer to Suresh's patch for more details (commit 0280f7c416c652a2fd95d166f52b199ae61122c0). Now interrupt remapping is decoupled from x2apic, it also needs to do the directed EOI for apic. Otherwise, apic interrupts won't work correctly. Signed-off-by: Weidong Han <weidong.han@intel.com> Cc: iommu@lists.linux-foundation.org Cc: Weidong Han <weidong.han@intel.com> Cc: suresh.b.siddha@intel.com Cc: dwmw2@infradead.org Cc: allen.m.kay@intel.com LKML-Reference: <1239355037-22856-1-git-send-email-weidong.han@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-10FRV: Move to arch/frv/include/asm/David Howells
Move arch headers from include/asm-frv/ to arch/frv/include/asm/. Signed-off-by: David Howells <dhowells@redhat.com>
2009-04-09x86: fix set_fixmap to use phys_addr_tMasami Hiramatsu
Use phys_addr_t for receiving a physical address argument instead of unsigned long. This allows fixmap to handle pages higher than 4GB on x86-32. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-09MN10300: Kill MN10300's own profiling KconfigDavid Howells
Kill MN10300's own profiling Kconfig as this is superfluous given that the profiling options have moved to init/Kconfig and arch/Kconfig. Not only is this now superfluous, but the dependencies are not correct. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-09Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: cpu_debug remove execute permission x86: smarten /proc/interrupts output for new counters x86: DMI match for the Dell DXP061 as it needs BIOS reboot x86: make 64 bit to use default_inquire_remote_apic x86, setup: un-resequence mode setting for VGA 80x34 and 80x60 modes x86, intel-iommu: fix X2APIC && !ACPI build failure
2009-04-09Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: consolidate documents blktrace: pass the right pointer to kfree() tracing/syscalls: use a dedicated file header tracing: append a comma to INIT_FTRACE_GRAPH
2009-04-09sh: Add support for DMA API debugging.Paul Mundt
This wires up support for the generic DMA API debugging. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-09MN10300: Convert obsolete no_irq_type to no_irq_chipThomas Gleixner
Convert the last remaining users to no_irq_chip. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-09mutex: have non-spinning mutexes on s390 by defaultHeiko Carstens
Impact: performance regression fix for s390 The adaptive spinning mutexes will not always do what one would expect on virtualized architectures like s390. Especially the cpu_relax() loop in mutex_spin_on_owner might hurt if the mutex holding cpu has been scheduled away by the hypervisor. We would end up in a cpu_relax() loop when there is no chance that the state of the mutex changes until the target cpu has been scheduled again by the hypervisor. For that reason we should change the default behaviour to no-spin on s390. We do have an instruction which allows to yield the current cpu in favour of a different target cpu. Also we have an instruction which allows us to figure out if the target cpu is physically backed. However we need to do some performance tests until we can come up with a solution that will do the right thing on s390. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> LKML-Reference: <20090409184834.7a0df7b2@osiris.boeblingen.de.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>