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2009-09-21perf_counter, powerpc, sparc: Fix compilation after perf_counter_overflow() ↵Paul Mackerras
change Commit 5622f295 ("x86, perf_counter, bts: Optimize BTS overflow handling") removed the regs field from struct perf_sample_data and added a regs parameter to perf_counter_overflow(). This breaks the build on powerpc (and Sparc) as reported by Sachin Sant: arch/powerpc/kernel/perf_counter.c: In function 'record_and_restart': arch/powerpc/kernel/perf_counter.c:1165: error: unknown field 'regs' specified in initializer This adjusts arch/powerpc/kernel/perf_counter.c to correspond with the new struct perf_sample_data and perf_counter_overflow(). [ v2: also fix Sparc, Markus Metzger <markus.t.metzger@intel.com> ] Reported-by: Sachin Sant <sachinp@in.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org> Cc: Markus Metzger <markus.t.metzger@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: benh@kernel.crashing.org Cc: linuxppc-dev@ozlabs.org Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <19127.8400.376239.586120@drongo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-21Use macros for .data.page_aligned section.Tim Abbott
This patch changes the remaining direct references to .data.page_aligned in C and assembly code to use the macros in include/linux/linkage.h. Signed-off-by: Tim Abbott <tabbott@ksplice.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-21Use macros for .bss.page_aligned section.Tim Abbott
This patch changes the remaining direct references to .bss.page_aligned in C and assembly code to use the macros in include/linux/linkage.h. Signed-off-by: Tim Abbott <tabbott@ksplice.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-21Use new __init_task_data macro in arch init_task.c files.Joe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Tim Abbott <tabbott@ksplice.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/jaswinder/linux-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jaswinder/linux-2.6: includecheck fix: x86, cpu/common.c includecheck fix: kernel/trace, ring_buffer.c includecheck fix: include/linux, ftrace.h includecheck fix: include/linux, page_cgroup.h includecheck fix: include/linux, aio.h includecheck fix: include/drm, drm_memory.h includecheck fix: include/acpi, acpi_bus.h includecheck fix: drivers/xen, evtchn.c includecheck fix: drivers/video, vgacon.c includecheck fix: drivers/scsi, ibmvscsi.c includecheck fix: drivers/scsi, libfcoe.c includecheck fix: x86, shadow.c includecheck fix: x86, traps.c includecheck fix: um, helper.c includecheck fix: s390, sys_s390.c
2009-09-20loongson: fix cut-and-paste mis-mergeLinus Torvalds
Ingo points out that I screwed up when merging the 'timers-for-linus' branch in commit a03fdb7612874834d6847107198712d18b5242c7. A bit too much copy-and-pasting caused the end result to have an extraneous 'return' in the middle of an expression. That was obviously bogus. Blush. Reported-by-with-patch: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: Driver-Core: extend devnode callbacks to provide permissions
2009-09-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (79 commits) USB serial: update the console driver usb-serial: straighten out serial_open usb-serial: add missing tests and debug lines usb-serial: rename subroutines usb-serial: fix termios initialization logic usb-serial: acquire references when a new tty is installed usb-serial: change logic of serial lookups usb-serial: put subroutines in logical order usb-serial: change referencing of port and serial structures tty: Char: mxser, use THRE for ASPP_OQUEUE ioctl tty: Char: mxser, add support for CP112UL uartlite: support shared interrupt lines tty: USB: serial/mct_u232, fix tty refcnt tty: riscom8, fix tty refcnt tty: riscom8, fix shutdown declaration TTY: fix typos tty: Power: fix suspend vt regression tty: vt: use printk_once tty: handle VT specific compat ioctls in vt driver n_tty: move echoctl check and clean up logic ...
2009-09-20Merge branch 'perfcounters-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perfcounters-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (58 commits) perf_counter: Fix perf_copy_attr() pointer arithmetic perf utils: Use a define for the maximum length of a trace event perf: Add timechart help text and add timechart to "perf help" tracing, x86, cpuidle: Move the end point of a C state in the power tracer perf utils: Be consistent about minimum text size in the svghelper perf timechart: Add "perf timechart record" perf: Add the timechart tool perf: Add a SVG helper library file tracing, perf: Convert the power tracer into an event tracer perf: Add a sample_event type to the event_union perf: Allow perf utilities to have "callback" options without arguments perf: Store trace event name/id pairs in perf.data perf: Add a timestamp to fork events sched_clock: Make it NMI safe perf_counter: Fix up swcounter throttling x86, perf_counter, bts: Optimize BTS overflow handling perf sched: Add --input=file option to builtin-sched.c perf trace: Sample timestamp and cpu when using record flag perf tools: Increase MAX_EVENT_LENGTH perf tools: Fix memory leak in read_ftrace_printk() ...
2009-09-20x86: Print the hypervisor returned tsc_khz during bootAlok Kataria
On an AMD-64 system the processor frequency that is printed during system boot, may be different than the tsc frequency that was returned by the hypervisor, due to the value returned from calibrate_cpu. For debugging timekeeping or other related issues it might be better to get the tsc_khz value returned by the hypervisor. The patch below now prints the tsc frequency that the VMware hypervisor returned. Signed-off-by: Alok N Kataria <akataria@vmware.com> LKML-Reference: <1252095219.12518.13.camel@ank32.eng.vmware.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20Merge branch 'linus' into x86/urgentIngo Molnar
Merge reason: Bring in changes that the next patch will depend on. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20x86: Correct segment permission flags in 64-bit linker scriptJan Beulich
While these don't get actively used (afaict), it still doesn't hurt for them to properly reflect what how respective segments will get mapped/ accessed. Signed-off-by: Jan Beulich <jbeulich@novell.com> LKML-Reference: <4AA0E95F0200007800013707@vpn.id2.novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20x86: cpuinit-annotate SMP boot trampolines properlyJan Beulich
Add missing annotations, and make use of include/linux/init.h's macros. Signed-off-by: Jan Beulich <jbeulich@novell.com> LKML-Reference: <4AA0E8F60200007800013703@vpn.id2.novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20x86: Increase timeout for EHCI debug port reset completion in early printkJan Beulich
On one of my systems, several thousand iterations are needed before CMD_RESET can be observed clear after setting it. Using a much higher value here obviously cannot hurt. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> LKML-Reference: <4AA0E85D02000078000136F9@vpn.id2.novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20x86: Fix uaccess_32.h typoSergey Senozhatsky
Trivial: correct "that the we don't" typo. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> LKML-Reference: <20090917125401.GU3717@localdomain.by> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20x86: Trivial whitespace cleanupsFelipe Contreras
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Cc: Vegard Nossum <vegardno@ifi.uio.no> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alok N Kataria <akataria@vmware.com> Cc: "Tan Wei Chong" <wei.chong.tan@intel.com> Cc: Len Brown <len.brown@intel.com> Cc: Lin Ming <ming.m.lin@intel.com> Cc: Bob Moore <robert.moore@intel.com> LKML-Reference: <1253137123-18047-2-git-send-email-felipe.contreras@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20x86, apic: Fix missed handling of discrete apicsCyrill Gorcunov
In case of discrete (pretty old) apics we may have cpu_has_apic bit not set but have to check if smp_found_config (MP spec) is there and apic was not disabled. Also don't forget to print apic/io-apic for such case as well. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <20090915071230.GA10604@lenovo> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20x86/i386: Remove duplicated #includeHuang Weiyi
Remove duplicated #include in: arch/x86/kernel/cpu/common.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20x86, mtrr: Convert loop to a while based construct, avoid naked semicolonJoe Perches
Perhaps this is a more readable/standard form. Signed-off-by: Joe Perches <joe@perches.com> LKML-Reference: <1252945687.3937.14.camel@Joe-Laptop.home> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20perf_counter: x86: Fix PMU resource leakPeter Zijlstra
Dave noticed that we leak the PMU resource reservations when we fail the hardware counter init. Reported-by: David Miller <davem@davemloft.net> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: David Miller <davem@davemloft.net> LKML-Reference: <1252483487.7746.164.camel@twins> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-20ARM: Add support for checking access permissions on prefetch abortsRussell King
ARMv6 introduces non-executable mappings, which can cause prefetch aborts when an attempt is made to execute from such a mapping. Currently, this causes us to loop in the page fault handler since we don't correctly check for proper permissions. Fix this by checking that VMAs have VM_EXEC set for prefetch aborts. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-20ARM: Separate out access error checkingRussell King
Since we get notified separately about prefetch aborts, which may be permission faults, we need to check for appropriate access permissions when handling a fault. This patch prepares us for doing this by separating out the access error checking. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-20mtd: OneNand support for Nomadik 8815 SoC (on NHK8815 board)Alessandro Rubini
Signed-off-by: Alessandro Rubini <rubini@unipv.it> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-20mtd: nand: driver for Nomadik 8815 SoC (on NHK8815 board)Alessandro Rubini
Signed-off-by: Alessandro Rubini <rubini@unipv.it> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-20Merge branch 'master' of ↵David Woodhouse
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/mtd/mtdcore.c Merged in order that I can apply the Nomadik nand/onenand support patches.
2009-09-20ARM: Ensure correct might_sleep() check in pagefault pathRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-20ARM: Update page fault handling for new OOM techniquesRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-20ARM: Provide definitions and helpers for decoding the FSR registerRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-20ARM: 5712/1: SA1100: initialise spinlock in DMA codeDmitry Artamonow
Declare it using DEFINE_SPINLOCK() Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-20includecheck fix: x86, cpu/common.cJaswinder Singh Rajput
fix the following 'make includecheck' warning: arch/x86/kernel/cpu/common.c: linux/smp.h is included more than once. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <1252087783.6385.10.camel@ht.satnam>
2009-09-20includecheck fix: x86, shadow.cJaswinder Singh Rajput
fix the following 'make includecheck' warning: arch/x86/mm/kmemcheck/shadow.c: linux/module.h is included more than once. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Sam Ravnborg <sam@ravnborg.org> LKML-Reference: <1247065179.4382.51.camel@ht.satnam>
2009-09-20includecheck fix: x86, traps.cJaswinder Singh Rajput
fix the following 'make includecheck' warning: arch/x86/kernel/traps.c: asm/traps.h is included more than once. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Sam Ravnborg <sam@ravnborg.org> LKML-Reference: <1247065094.4382.49.camel@ht.satnam>
2009-09-20includecheck fix: um, helper.cJaswinder Singh Rajput
fix the following 'make includecheck' warning: arch/um/os-Linux/helper.c: linux/limits.h is included more than once. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: jdike@addtoit.com Cc: Sam Ravnborg <sam@ravnborg.org> LKML-Reference: <1247064950.4382.45.camel@ht.satnam> Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
2009-09-20arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0Sam Ravnborg
Albin Tonnerre <albin.tonnerre@free-electrons.com> reported: Bash 4 filters out variables which contain a dot in them. This happends to be the case of CPPFLAGS_vmlinux.lds. This is rather unfortunate, as it now causes build failures when using SHELL=/bin/bash to compile, or when bash happens to be used by make (eg when it's /bin/sh) Remove the common definition of CPPFLAGS_vmlinux.lds by pushing relevant stuff to either Makefile.build or the arch specific kernel/Makefile where we build the linker script. This is also nice cleanup as we move the information out where it is used. Notes for the different architectures touched: arm - we use an already exported symbol cris - we use a config symbol aleady available [Not build tested] mips - the jiffies complexity has moved to vmlinux.lds.S where we need it. Added a few variables to CPPFLAGS - they are only used by the linker script. [Not build tested] powerpc - removed assignment that is not needed [not build tested] sparc - simplified it using $(BITS) um - introduced a few new exported variables to deal with this xtensa - added options to CPP invocation [not build tested] Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kbuild: rename ld-option to cc-ldoptionSam Ravnborg
ld-option is misnamed as it test options to gcc, not to ld. Renamed it to reflect this. Cc: Andi Kleen <andi@firstfloor.org> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kbuild: use INSTALLKERNEL to select customized installkernel scriptSam Ravnborg
Replace the use of CROSS_COMPILE to select a customized installkernel script with the possibility to set INSTALLKERNEL to select a custom installkernel script when running make: make INSTALLKERNEL=arm-installkernel install With this patch we are now more consistent across different architectures - they did not all support use of CROSS_COMPILE. The use of CROSS_COMPILE was a hack as this really belongs to gcc/binutils and the installkernel script does not change just because we change toolchain. The use of CROSS_COMPILE caused troubles with an upcoming patch that saves CROSS_COMPILE when a kernel is built - it would no longer be installable. [Thanks to Peter Z. for this hint] This patch undos what Ian did in commit: 0f8e2d62fa04441cd12c08ce521e84e5bd3f8a46 ("use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh") The patch has been lightly tested on x86 only - but all changes looks obvious. Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin] Acked-by: Russell King <linux@arm.linux.org.uk> [arm] Acked-by: Paul Mundt <lethal@linux-sh.org> [sh] Acked-by: "H. Peter Anvin" <hpa@zytor.com> [x86] Cc: Ian Campbell <icampbell@arcom.com> Cc: Tony Luck <tony.luck@intel.com> [ia64] Cc: Fenghua Yu <fenghua.yu@intel.com> [ia64] Cc: Hirokazu Takata <takata@linux-m32r.org> [m32r] Cc: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Cc: Kyle McMartin <kyle@mcmartin.ca> [parisc] Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> [powerpc] Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390] Cc: Thomas Gleixner <tglx@linutronix.de> [x86] Cc: Ingo Molnar <mingo@redhat.com> [x86] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20includecheck fix: s390, sys_s390.cJaswinder Singh Rajput
fix the following 'make includecheck' warning: arch/s390/kernel/sys_s390.c: linux/syscalls.h is included more than once. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: schwidefsky@de.ibm.com Cc: heiko.carstens@de.ibm.com Cc: Sam Ravnborg <sam@ravnborg.org> LKML-Reference: <1247068809.4382.111.camel@ht.satnam>
2009-09-19mtd: omap: add support for nand prefetch-read and post-writevimal singh
This patch adds prefetch support to access nand flash in mpu mode. This patch also adds 8-bit nand support (omap_read/write_buf8). Prefetch can be used for both 8- and 16-bit devices. Signed-off-by: Vimal Singh <vimalsingh@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19serial: kill off uart_infoAlan Cox
We moved this into uart_state, now move the fields out of the separate structure and kill it off. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-19Driver-Core: extend devnode callbacks to provide permissionsKay Sievers
This allows subsytems to provide devtmpfs with non-default permissions for the device node. Instead of the default mode of 0600, null, zero, random, urandom, full, tty, ptmx now have a mode of 0666, which allows non-privileged processes to access standard device nodes in case no other userspace process applies the expected permissions. This also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-19Revert 'x86: Fix system crash when loading with "reservetop" parameter'Yinghai Lu
After close looking, commit 8126dec3 will break: 1. some cpu feature in early stage too, like cpu_has_x2apic 2. will break built-in-command line 3. will break other memmap= and mem= 4. early_dbgp and early_console that will use early_ioremap to access mmio (?) So revert it. Reported-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>, Cc: Linus Torvalds <torvalds@linux-foundation.org>, Cc: Andrew Morton <akpm@linux-foundation.org>, LKML-Reference: <4AB51DFD.2000904@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-19mtd: onenand: make onenand/generic.c more genericMagnus Damm
Remove the ARM dependency from the generic "onenand" platform device driver. This change makes the driver useful for other architectures as well. Needed for the SuperH kfr2r09 board. Apart from the obvious Kconfig bits, the most important change is the move away from ARM specific includes and platform data. Together with this change the only in-tree board code gets an update, and the driver name is also changed gracefully break potential out of tree drivers. The driver is also updated to allow NULL as platform data together with a few changes to make use of resource_size() and dev_name(). Signed-off-by: Magnus Damm <damm@igel.co.jp> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Kyungmin Park <kmpark@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19x86, mce: Fix compile warning in case of CONFIG_SMP=nAndreas Herrmann
Fix following compile warning: arch/x86/kernel/cpu/mcheck/mce_amd.c: In function 'threshold_create_bank': arch/x86/kernel/cpu/mcheck/mce_amd.c:492: warning: unused variable 'c' which shows up when kernel is compiled with CONFIG_SMP=n. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20090915151727.GB21670@alberich.amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-19tracing, x86, cpuidle: Move the end point of a C state in the power tracerArjan van de Ven
The "end of a C state" trace point currently happens before the code runs that corrects the TSC for having stopped during idle. The result of this is that the timestamp of the end-of-C-state event is garbage on cpus where the TSC stops during idle. This patch moves the end point of the C state to after the timekeeping engine of the kernel has been corrected. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Len Brown <len.brown@intel.com> Cc: fweisbec@gmail.com Cc: peterz@infradead.org Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <20090919133533.139c2a46@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-19intel-iommu: Kill DMAR_BROKEN_GFX_WA option.David Woodhouse
Just make it depend on BROKEN for now, in case people scream really loud about it (and because we might want to keep some of this logic for an upcoming BIOS workaround, so I don't just want to rip it out entirely just yet). But for graphics devices, it really ought to be unnecessary. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-09-19Merge branch 'for-rmk' of git://linux-arm.org/linux-2.6Russell King
2009-09-19ARM: s3c: fix check of index into s3c_gpios[]Roel Kluin
The check of the s3c_gpios[] index had an off-by-one. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Ben Dooks <ben-linux@fluff.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-19ARM: spitz: fix touchscreen max presurePavel Machek
This fixes max_pressure for spitz's touchscreen, and is requirement for getting reasonable pressure numbers from touchscreen driver. Signed-off-by: Pavel Machek <pavel@ucw.cz> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-19ARM: STMP3xxx: deallocation with negative index of descriptors[]Roel Kluin
The last deallocation is invalid. In the last iteration, i is -1. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: dmitry pervushin <dpervushin@embeddedalley.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-09-19tracing, perf: Convert the power tracer into an event tracerArjan van de Ven
This patch converts the existing power tracer into an event tracer, so that power events (C states and frequency changes) can be tracked via "perf". This also removes the perl script that was used to demo the tracer; its functionality is being replaced entirely with timechart. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20090912130542.6d314860@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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