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Lars-Peter Clausen [Tue, 4 Aug 2009 00:03:52 +0000 (02:03 +0200)]
Regulator: Implement list_voltage for pcf50633 regulator driver.
This patch implements list_voltage for the pcf50644 regulator driver.
As the voltages are linearly scaled the code to convert register values to
voltages can be reused and most of the code can be shared with get_voltage.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Mon, 3 Aug 2009 17:49:57 +0000 (18:49 +0100)]
regulator: regulator_enable() permission checking
The regulator_enable() code wasn't actually checking that the
machine constraints had given permission to enable the regulator.
Add code to do that, but only if the regulator is not already on
due to something like always_on or being left on at startup since
in those cases there's no physical change being introduced and the
constraint wouldn't make any sense.
Also add matching code for disable(). We need to do less there since
either regulator_enable() should have succeeded first or the board
setup makes no sense.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Mon, 3 Aug 2009 17:49:56 +0000 (18:49 +0100)]
regulator: Push locking for regulator_is_enabled() out
Allows use by more of the internal regulator API code.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Mon, 3 Aug 2009 17:49:55 +0000 (18:49 +0100)]
regulator: Check for constraints in regulator_init_complete()
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Mon, 3 Aug 2009 17:49:54 +0000 (18:49 +0100)]
regulator: Check for constraints before using them for name
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Mon, 3 Aug 2009 17:49:53 +0000 (18:49 +0100)]
regulator: More explict error reporting for fixed regulator
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mike Rapoport [Sun, 26 Jul 2009 10:33:04 +0000 (13:33 +0300)]
regulator: da903x: consolidate DA903[045]_DVC macros
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Tue, 21 Jul 2009 15:00:27 +0000 (16:00 +0100)]
regulator: Improve virtual consumer probe error handling
Report errors to the user and try harder to clean up if we're not
able to probe.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Tue, 21 Jul 2009 15:00:26 +0000 (16:00 +0100)]
regulator: Fix support for deviceless supply mappings
The patch to add support for looking up consumers by device name
had the side effect of causing us to require a device which is
at best premature since at least cpufreq still operates outside
the device model. Remove that requirement.
Reported-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Tue, 21 Jul 2009 15:00:25 +0000 (16:00 +0100)]
regulator: Warn when unregistering an in-use regulator
We're probably going to start oopsing fairly soon after this happens.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Tue, 21 Jul 2009 15:00:24 +0000 (16:00 +0100)]
regulator: Add regulator voltage range check API
Simplify checking of support for voltage ranges by providing an API which
wraps the existing count and list operations.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Tue, 21 Jul 2009 15:00:23 +0000 (16:00 +0100)]
regulator: Add regulator_get_exclusive() API
Some consumers require complete control of the regulator and can't
tolerate sharing it with other consumers, most commonly because they need
to have the regulator actually disabled so can't have other consumers
forcing it on. This new regulator_get_exclusive() API call allows these
consumers to explicitly request this, documenting the assumptions that
they are making.
In order to simplify coding of such consumers the use count for regulators
they request is forced to match the enabled state of the regulator when
it is requested. This is not possible for consumers which can share
regulators due to the need to keep track of the ownership of use counts.
A new API call is used rather than an additional argument to the existing
regulator_get() in order to avoid merge headaches with driver code in
other trees.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Haojian Zhuang [Fri, 10 Jul 2009 08:03:36 +0000 (16:03 +0800)]
regulator: support list voltage in da903x
Make da903x driver to list voltage and count voltage.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
roald [Mon, 13 Jul 2009 09:25:21 +0000 (17:25 +0800)]
regulator: add initialization macro of regulator supply
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Haojian Zhuang [Thu, 9 Jul 2009 09:52:30 +0000 (17:52 +0800)]
regulator: replace ADTV1 register by ADTV2 in da903x
In PXA3xx SoC family, V_CORE power doamin is supplied by BUCK1 that is
controller by ADTV1 or ADTV2 register.
By default, v1 and v2 has the same copy. If v1 or v2 is updated, the last
value that is written to either register takes effect. It means that v1
and v2 has different copy. And the actual voltage output is determinated
by last update on either register.
DA9034/35 is binded with PXA3xx SoC family. While SoC is scaling OP or
entering/exiting lower power mode, SoC needs to change voltage of V_CORE
power doamin. In order to be efficient, POWER I2C (hardcode) mode could
be enabled in SoC. In this mode, SoC will control v2 register directly.
In original DA903x driver, software will only read regulator data from v1
register. But SoC controls v2 register directly. It results that v1 and v2
isn't synchronized. Wrong data will be read from v1 register. So access v2
register in da903x driver instead.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Haojian Zhuang [Wed, 8 Jul 2009 09:57:24 +0000 (17:57 +0800)]
regulator: support da9030 BUCK in da903x driver
Support the operation of DA9030 BUCK2 in da903x driver.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Haojian Zhuang [Fri, 26 Jun 2009 11:20:59 +0000 (19:20 +0800)]
regulator: add buck3 in da903x driver
BUCK3 is the new component in DA9035. So there're three BUCKs in DA9035.
And there're two BUCKs in DA9034.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Thu, 9 Jul 2009 14:44:31 +0000 (15:44 +0100)]
regulator: Define full constraints function with REGULATOR disabled
This allows machine drivers to build without ifdefs if they have
full constraints. Suggested by machine drivers contributed by
Haojian Zhuang <haojian.zhuang@gmail.com>.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Joe Perches [Sun, 28 Jun 2009 16:26:42 +0000 (09:26 -0700)]
drivers/regulator/pcf50633-regulator.c: Remove unnecessary semicolons
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Wed, 17 Jun 2009 16:56:39 +0000 (17:56 +0100)]
regulator: Allow consumer supplies to be set up with dev_name()
Follow the approach suggested by Russell King and implemented by him in
the clkdev API and allow consumer device supply mapings to be set up
using the dev_name() for the consumer instead of the struct device.
In order to avoid making existing machines instabuggy and creating merge
issues the use of struct device is still supported for the time being.
This resolves problems working with buses such as I2C which make the
struct device available late providing that the final device name is
known, which is the case for most embedded systems with fixed setups.
Consumers must still use the struct device when calling regulator_get().
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Wed, 17 Jun 2009 14:45:07 +0000 (15:45 +0100)]
regulator: Make virtual consumer a bit more chatty
This makes it easier to read the logs when doing testing.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Wed, 17 Jun 2009 14:45:06 +0000 (15:45 +0100)]
regulator: Make virtual consumer use dev_printk
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Mon, 15 Jun 2009 19:01:01 +0000 (20:01 +0100)]
regulator: Report regulator_get() failure in virtual consumer
The core will no longer complain so we should log an error here.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Roel Kluin [Mon, 15 Jun 2009 20:30:39 +0000 (22:30 +0200)]
regulator: add check index of wm8350->pmic.pdev[]
Ensure that reg is within the bounds of array wm8350->pmic.pdev[].
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Linus Torvalds [Mon, 21 Sep 2009 16:15:07 +0000 (09:15 -0700)]
Merge branch 'perfcounters-rename-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-rename-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf: Tidy up after the big rename
perf: Do the big rename: Performance Counters -> Performance Events
perf_counter: Rename 'event' to event_id/hw_event
perf_counter: Rename list_entry -> group_entry, counter_list -> group_list
Manually resolved some fairly trivial conflicts with the tracing tree in
include/trace/ftrace.h and kernel/trace/trace_syscalls.c.
Linus Torvalds [Mon, 21 Sep 2009 16:06:52 +0000 (09:06 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./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:
rcu: Fix whitespace inconsistencies
rcu: Fix thinko, actually initialize full tree
rcu: Apply results of code inspection of kernel/rcutree_plugin.h
rcu: Add WARN_ON_ONCE() consistency checks covering state transitions
rcu: Fix synchronize_rcu() for TREE_PREEMPT_RCU
rcu: Simplify rcu_read_unlock_special() quiescent-state accounting
rcu: Add debug checks to TREE_PREEMPT_RCU for premature grace periods
rcu: Kconfig help needs to say that TREE_PREEMPT_RCU scales down
rcutorture: Occasionally delay readers enough to make RCU force_quiescent_state
rcu: Initialize multi-level RCU grace periods holding locks
rcu: Need to update rnp->gpnum if preemptable RCU is to be reliable
Linus Torvalds [Mon, 21 Sep 2009 16:06:31 +0000 (09:06 -0700)]
Merge branch 'perfcounters-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf_counter, powerpc, sparc: Fix compilation after perf_counter_overflow() change
perf_counter: x86: Fix PMU resource leak
perf util: SVG performance improvements
perf util: Make the timechart SVG width dynamic
perf timechart: Show the duration of scheduler delays in the SVG
perf timechart: Show the name of the waker/wakee in timechart
Linus Torvalds [Mon, 21 Sep 2009 16:06:17 +0000 (09:06 -0700)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Simplify sys_sched_rr_get_interval() system call
sched: Fix potential NULL derference of doms_cur
sched: Fix raciness in runqueue_is_locked()
sched: Re-add lost cpu_allowed check to sched_fair.c::select_task_rq_fair()
sched: Remove unneeded indentation in sched_fair.c::place_entity()
Linus Torvalds [Mon, 21 Sep 2009 16:05:47 +0000 (09:05 -0700)]
Merge branch 'tracing-fixes-for-linus' of git://git./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:
kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file
tracing: Export trace_profile_buf symbols
tracing/events: use list_for_entry_continue
tracing: remove max_tracer_type_len
function-graph: use ftrace_graph_funcs directly
tracing: Remove markers
tracing: Allocate the ftrace event profile buffer dynamically
tracing: Factorize the events profile accounting
Linus Torvalds [Mon, 21 Sep 2009 16:05:19 +0000 (09:05 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./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: Print the hypervisor returned tsc_khz during boot
x86: Correct segment permission flags in 64-bit linker script
x86: cpuinit-annotate SMP boot trampolines properly
x86: Increase timeout for EHCI debug port reset completion in early printk
x86: Fix uaccess_32.h typo
x86: Trivial whitespace cleanups
x86, apic: Fix missed handling of discrete apics
x86/i386: Remove duplicated #include
x86, mtrr: Convert loop to a while based construct, avoid naked semicolon
Revert 'x86: Fix system crash when loading with "reservetop" parameter'
x86, mce: Fix compile warning in case of CONFIG_SMP=n
x86, apic: Use logical flat on intel with <= 8 logical cpus
x86: SGI UV: Map MMIO-High memory range
x86: SGI UV: Add volatile semantics to macros that access chipset registers
x86: SGI UV: Fix IPI macros
x86: apic: Convert BUG() to BUG_ON()
x86: Remove final bits of CONFIG_X86_OLD_MCE
Linus Torvalds [Mon, 21 Sep 2009 16:04:30 +0000 (09:04 -0700)]
Merge branch 'writeback' of git://git.kernel.dk/linux-2.6-block
* 'writeback' of git://git.kernel.dk/linux-2.6-block:
nfs: initialize the backing_dev_info when creating the server
writeback: make balance_dirty_pages() gradually back more off
writeback: don't use schedule_timeout() without setting runstate
nfs: nfs_kill_super() should call bdi_unregister() after killing super
Linus Torvalds [Mon, 21 Sep 2009 16:03:10 +0000 (09:03 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (222 commits)
V4L/DVB (13033): pt1: Don't use a deprecated DMA_BIT_MASK macro
V4L/DVB (13029): radio-si4713: remove #include <linux/version.h>
V4L/DVB (13027): go7007: convert printks to v4l2_info
V4L/DVB (13026): s2250-board: Implement brightness and contrast controls
V4L/DVB (13025): s2250-board: Fix memory leaks
V4L/DVB (13024): go7007: Implement vidioc_g_std and vidioc_querystd
V4L/DVB (13023): go7007: Merge struct gofh and go declarations
V4L/DVB (13022): go7007: Fix mpeg controls
V4L/DVB (13021): go7007: Fix whitespace and line lengths
V4L/DVB (13020): go7007: Updates to Kconfig and Makefile
V4L/DVB (13019): video: initial support for ADV7180
V4L/DVB (13018): kzalloc failure ignored in au8522_probe()
V4L/DVB (13017): gspca: kmalloc failure ignored in sd_start()
V4L/DVB (13016): kmalloc failure ignored in lgdt3304_attach() and s921_attach()
V4L/DVB (13015): kmalloc failure ignored in m920x_firmware_download()
V4L/DVB (13014): Add support for Compro VideoMate E800 (DVB-T part only)
V4L/DVB (13013): FM TX: si4713: Kconfig: Fixed two typos.
V4L/DVB (13012): uvc: introduce missing kfree
V4L/DVB (13011): Change tuner type of BeholdTV cards
V4L/DVB (13009): gspca - stv06xx-hdcs: Reduce exposure range
...
Linus Torvalds [Mon, 21 Sep 2009 15:15:18 +0000 (08:15 -0700)]
Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6
* 'linux-next' of git://git.infradead.org/ubifs-2.6:
UBIFS: fix debugging dump
UBIFS: improve lprops dump
UBIFS: various minor commentary fixes
UBIFS: improve journal head debugging prints
UBIFS: define journal head numbers in ubifs-media.h
UBIFS: amend commentaries
UBIFS: check ubifs_scan error codes better
UBIFS: do not print scary error messages needlessly
UBIFS: add inode size debugging check
UBIFS: constify file and inode operations
UBIFS: remove unneeded call from ubifs_sync_fs
UBIFS: kill BKL
UBIFS: remove unused functions
UBIFS: suppress compilation warning
Linus Torvalds [Mon, 21 Sep 2009 15:13:55 +0000 (08:13 -0700)]
Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6
* 'linux-next' of git://git.infradead.org/ubi-2.6:
UBI: improve NOR flash erasure quirk
UBI: introduce flash dump helper
UBI: eliminate possible undefined behaviour
UBI: print a warning if too many PEBs are corrupted
UBI: amend NOR flash pre-erase quirk
UBI: print a message if ECH is corrupted and VIDH is ok
Linus Torvalds [Mon, 21 Sep 2009 15:10:09 +0000 (08:10 -0700)]
Merge branch 'drm-linus' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (133 commits)
drm/vgaarb: add VGA arbitration support to the drm and kms.
drm/radeon: some r420s have a CP race with the DMA engine.
drm/radeon/r600/kms: rv670 is not DCE3
drm/radeon/kms: r420 idle after programming GA_ENHANCE
drm/radeon/kms: more fixes to rv770 suspend/resume path.
drm/radeon/kms: more alignment for rv770.c with r600.c
drm/radeon/kms: rv770 blit init called too late.
drm/radeon/kms: move around new init path code to avoid posting at init
drm/radeon/r600: fix some issues with suspend/resume.
drm/radeon/kms: disable VGA rendering engine before taking over VRAM
drm/radeon/kms: Move radeon_get_clock_info() call out of radeon_clocks_init().
drm/radeon/kms: add initial connector properties
drm/radeon/kms: Use surfaces for scanout / cursor byte swapping on big endian.
drm/radeon/kms: don't fail if we fail to init GPU acceleration
drm/r600/kms: fixup number of loops per blit calculation.
drm/radeon/kms: reprogram format in set base.
drm/radeon: avivo chips have no separate int bit for display
drm/radeon/r600: don't do interrupts
drm: fix _DRM_GEM addmap error message
drm: update crtc x/y when only fb changes
...
Fixed up trivial conflicts in firmware/Makefile due to network driver
(cxgb3) and drm (mga/r128/radeon) firmware being listed next to each
other.
Ingo Molnar [Mon, 21 Sep 2009 06:56:58 +0000 (08:56 +0200)]
Driver-Core: fix devnode callbacks for dabusb and industrialio
The build of the dabusb driver broke:
drivers/media/video/dabusb.c:758: error: unknown field 'nodename' specified in initializer
drivers/media/video/dabusb.c:758: warning: initialization from incompatible pointer type
make[3]: *** wait: No child processes. Stop.
Due to this commit:
e454cea: Driver-Core: extend devnode callbacks to provide permissions
Missing the dabusb driver's dabusb_nodename() callback.
Similar issues with the iio/industrialio driver in staging, pointed out
and patched by Jean Delvare.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Industrialio-parts-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jens Axboe [Mon, 21 Sep 2009 07:59:39 +0000 (09:59 +0200)]
nfs: initialize the backing_dev_info when creating the server
NFS may free the server structure without ever having used the
bdi, so we either need to flag the bdi as being uninitialized or
initialize it up front. This does the latter.
This fixes a crash with mounting more than one NFS file system,
should people ever need that kind of obscure NFS functionality.
Tested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Thu, 17 Sep 2009 17:59:14 +0000 (19:59 +0200)]
writeback: make balance_dirty_pages() gradually back more off
Currently it just sleeps for a very short time, just 1 jiffy. If
we keep looping in there, continually delay for a little longer
of up to 100msec in total. That was the old limit for congestion
wait.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Thu, 17 Sep 2009 17:56:01 +0000 (19:56 +0200)]
writeback: don't use schedule_timeout() without setting runstate
Just use schedule_timeout_interruptible(), saves a call to
set_current_state().
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Jens Axboe [Thu, 17 Sep 2009 12:51:44 +0000 (14:51 +0200)]
nfs: nfs_kill_super() should call bdi_unregister() after killing super
Otherwise we could be attempting to flush data for a writeback
thread and bdi that have already disappeared.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Ingo Molnar [Mon, 21 Sep 2009 10:20:38 +0000 (12:20 +0200)]
perf: Tidy up after the big rename
- provide compatibility Kconfig entry for existing PERF_COUNTERS .config's
- provide courtesy copy of old perf_counter.h, for user-space projects
- small indentation fixups
- fix up MAINTAINERS
- fix small x86 printout fallout
- fix up small PowerPC comment fallout (use 'counter' as in register)
Reviewed-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 21 Sep 2009 10:02:48 +0000 (12:02 +0200)]
perf: Do the big rename: Performance Counters -> Performance Events
Bye-bye Performance Counters, welcome Performance Events!
In the past few months the perfcounters subsystem has grown out its
initial role of counting hardware events, and has become (and is
becoming) a much broader generic event enumeration, reporting, logging,
monitoring, analysis facility.
Naming its core object 'perf_counter' and naming the subsystem
'perfcounters' has become more and more of a misnomer. With pending
code like hw-breakpoints support the 'counter' name is less and
less appropriate.
All in one, we've decided to rename the subsystem to 'performance
events' and to propagate this rename through all fields, variables
and API names. (in an ABI compatible fashion)
The word 'event' is also a bit shorter than 'counter' - which makes
it slightly more convenient to write/handle as well.
Thanks goes to Stephane Eranian who first observed this misnomer and
suggested a rename.
User-space tooling and ABI compatibility is not affected - this patch
should be function-invariant. (Also, defconfigs were not touched to
keep the size down.)
This patch has been generated via the following script:
FILES=$(find * -type f | grep -vE 'oprofile|[^K]config')
sed -i \
-e 's/PERF_EVENT_/PERF_RECORD_/g' \
-e 's/PERF_COUNTER/PERF_EVENT/g' \
-e 's/perf_counter/perf_event/g' \
-e 's/nb_counters/nb_events/g' \
-e 's/swcounter/swevent/g' \
-e 's/tpcounter_event/tp_event/g' \
$FILES
for N in $(find . -name perf_counter.[ch]); do
M=$(echo $N | sed 's/perf_counter/perf_event/g')
mv $N $M
done
FILES=$(find . -name perf_event.*)
sed -i \
-e 's/COUNTER_MASK/REG_MASK/g' \
-e 's/COUNTER/EVENT/g' \
-e 's/\<event\>/event_id/g' \
-e 's/counter/event/g' \
-e 's/Counter/Event/g' \
$FILES
... to keep it as correct as possible. This script can also be
used by anyone who has pending perfcounters patches - it converts
a Linux kernel tree over to the new naming. We tried to time this
change to the point in time where the amount of pending patches
is the smallest: the end of the merge window.
Namespace clashes were fixed up in a preparatory patch - and some
stylistic fallout will be fixed up in a subsequent patch.
( NOTE: 'counters' are still the proper terminology when we deal
with hardware registers - and these sed scripts are a bit
over-eager in renaming them. I've undone some of that, but
in case there's something left where 'counter' would be
better than 'event' we can undo that on an individual basis
instead of touching an otherwise nicely automated patch. )
Suggested-by: Stephane Eranian <eranian@google.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mackerras <paulus@samba.org>
Reviewed-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <linux-arch@vger.kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 21 Sep 2009 09:31:35 +0000 (11:31 +0200)]
perf_counter: Rename 'event' to event_id/hw_event
In preparation to the renames, to avoid a namespace clash.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 21 Sep 2009 08:18:27 +0000 (10:18 +0200)]
perf_counter: Rename list_entry -> group_entry, counter_list -> group_list
This is in preparation of the big rename, but also makes sense
in a standalone way: 'list_entry' is a bad name as we already
have a list_entry() in list.h.
Also, the 'counter list' is too vague, it doesnt tell us the
purpose of that list.
Clarify these names to show that it's all about the group
hiearchy.
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 21 Sep 2009 10:51:27 +0000 (12:51 +0200)]
Merge branch 'linus' into perfcounters/rename
Merge reason: pull in all the latest code before doing the rename.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Artem Bityutskiy [Mon, 21 Sep 2009 09:09:22 +0000 (12:09 +0300)]
Merge branch 'master' of git://git./linux/kernel/git/torvalds/linux-2.6 into linux-next
Conflicts:
fs/ubifs/super.c
Merge the upstream tree in order to resolve a conflict with the
per-bdi writeback changes from the linux-2.6-block tree.
Peter Williams [Mon, 21 Sep 2009 01:31:53 +0000 (01:31 +0000)]
sched: Simplify sys_sched_rr_get_interval() system call
By removing the need for it to know details of scheduling classes.
This allows PlugSched to define orthogonal scheduling classes.
Signed-off-by: Peter Williams <pwil3058@bigpond.net.au>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <
06d1b89ee15a0eef82d7.
1253496713@mudlark.pw.nest>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Paul Mackerras [Mon, 21 Sep 2009 06:44:32 +0000 (16:44 +1000)]
perf_counter, powerpc, sparc: Fix compilation after perf_counter_overflow() 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>
Dave Airlie [Mon, 21 Sep 2009 04:33:58 +0000 (14:33 +1000)]
drm/vgaarb: add VGA arbitration support to the drm and kms.
VGA arb requires DRM support for non-kms drivers, to turn on/off
irqs when disabling the mem/io regions.
VGA arb requires KMS support for GPUs where we can turn off VGA
decoding. Currently we know how to do this for intel and radeon
kms drivers, which allows them to be removed from the arbiter.
This patch comes from Fedora rawhide kernel.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Mon, 21 Sep 2009 04:48:45 +0000 (14:48 +1000)]
drm/radeon: some r420s have a CP race with the DMA engine.
This patch makes sure the CP doesn't DMA do VRAM while 2D
is active by inserting a CP resync token.
todo: port to kms.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Alex Deucher [Fri, 18 Sep 2009 15:30:30 +0000 (11:30 -0400)]
drm/radeon/r600/kms: rv670 is not DCE3
RV670 was using the wrong modesetting code.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Mon, 21 Sep 2009 04:15:10 +0000 (14:15 +1000)]
drm/radeon/kms: r420 idle after programming GA_ENHANCE
https://bugs.freedesktop.org/show_bug.cgi?id=24041
The idle allows rs690 to startup properly.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Mon, 21 Sep 2009 04:06:30 +0000 (14:06 +1000)]
drm/radeon/kms: more fixes to rv770 suspend/resume path.
This resumes my
RV730PRO (4650)
RV770 (4850)
fine.
Still researching the RV4550 (RV710), resumes without X fine.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Sun, 20 Sep 2009 23:02:06 +0000 (16:02 -0700)]
Merge git://git./linux/kernel/git/jaswinder/linux-2.6
* 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
Linus Torvalds [Sun, 20 Sep 2009 22:57:28 +0000 (15:57 -0700)]
loongson: fix cut-and-paste mis-merge
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>
Linus Torvalds [Sun, 20 Sep 2009 22:55:56 +0000 (15:55 -0700)]
Merge branch 'next-i2c' of git://aeryn.fluff.org.uk/bjdooks/linux
* 'next-i2c' of git://aeryn.fluff.org.uk/bjdooks/linux:
[PATCH] i2c-imx: make bus available early
i2c-mv64xxx: correct mv64xxx_i2c_intr() return type
Linus Torvalds [Sun, 20 Sep 2009 22:55:39 +0000 (15:55 -0700)]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
Driver-Core: extend devnode callbacks to provide permissions
Linus Torvalds [Sun, 20 Sep 2009 22:55:17 +0000 (15:55 -0700)]
Merge git://git./linux/kernel/git/gregkh/tty-2.6
* 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
...
Linus Torvalds [Sun, 20 Sep 2009 22:54:37 +0000 (15:54 -0700)]
Merge branch 'perfcounters-core-for-linus' of git://git./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()
...
Alok Kataria [Fri, 4 Sep 2009 20:13:39 +0000 (13:13 -0700)]
x86: Print the hypervisor returned tsc_khz during boot
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>
Ingo Molnar [Sun, 20 Sep 2009 18:24:58 +0000 (20:24 +0200)]
Merge branch 'linus' into x86/urgent
Merge reason: Bring in changes that the next patch will depend on.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jan Beulich [Fri, 4 Sep 2009 08:18:07 +0000 (09:18 +0100)]
x86: Correct segment permission flags in 64-bit linker script
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>
Jan Beulich [Fri, 4 Sep 2009 08:16:22 +0000 (09:16 +0100)]
x86: cpuinit-annotate SMP boot trampolines properly
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>
Jan Beulich [Fri, 4 Sep 2009 08:13:49 +0000 (09:13 +0100)]
x86: Increase timeout for EHCI debug port reset completion in early printk
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>
Yong Zhang [Mon, 14 Sep 2009 12:20:16 +0000 (20:20 +0800)]
sched: Fix potential NULL derference of doms_cur
If CONFIG_CPUMASK_OFFSTACK is enabled but doms_cur alloc failed in
arch_init_sched_domains(), doms_cur will move back to
fallback_doms. But this time, fallback_doms has not been
initialized yet.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: a.p.zijlstra@chello.nl
LKML-Reference: <
1252930816-7672-1-git-send-email-yong.zhang0@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Sergey Senozhatsky [Thu, 17 Sep 2009 12:54:01 +0000 (15:54 +0300)]
x86: Fix uaccess_32.h typo
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>
Felipe Contreras [Wed, 16 Sep 2009 21:38:38 +0000 (00:38 +0300)]
x86: Trivial whitespace cleanups
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>
Cyrill Gorcunov [Tue, 15 Sep 2009 07:12:30 +0000 (11:12 +0400)]
x86, apic: Fix missed handling of discrete apics
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>
Huang Weiyi [Thu, 17 Sep 2009 22:39:15 +0000 (06:39 +0800)]
x86/i386: Remove duplicated #include
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>
Alexey Dobriyan [Fri, 18 Sep 2009 19:57:09 +0000 (12:57 -0700)]
kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Joe Perches [Mon, 14 Sep 2009 16:28:07 +0000 (09:28 -0700)]
x86, mtrr: Convert loop to a while based construct, avoid naked semicolon
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>
Andrew Morton [Sat, 19 Sep 2009 18:55:44 +0000 (11:55 -0700)]
sched: Fix raciness in runqueue_is_locked()
runqueue_is_locked() is unavoidably racy due to a poor interface design.
It does
cpu = get_cpu()
ret = some_perpcu_thing(cpu);
put_cpu(cpu);
return ret;
Its return value is unreliable.
Fix.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
200909191855.n8JItiko022148@imap1.linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Wed, 9 Sep 2009 08:04:47 +0000 (10:04 +0200)]
perf_counter: x86: Fix PMU resource leak
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>
Arjan van de Ven [Sun, 20 Sep 2009 16:14:38 +0000 (18:14 +0200)]
perf util: SVG performance improvements
Tweak the output SVG to increase performance in SVG viewers by
limiting the different types of font sizes and by smarter
transformations on the text.
At least with Inkscape this gives a notable performance improvement
during zoom and scrolling.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
20090920181438.
3a49cb93@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arjan van de Ven [Sun, 20 Sep 2009 16:14:16 +0000 (18:14 +0200)]
perf util: Make the timechart SVG width dynamic
This patch adds a command line option for timechart that allows the
user to specify the width of the SVG file.
This patch also makes sure that each second of recording has at
least 200 units (pixels at 96 DPI) of width. This impacts
recordings longer than 5 seconds; recordings shorter than 5 second
will scale up to have a width of 1000 units for the whole recording
(as before).
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
20090920181416.
69570c5d@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arjan van de Ven [Sun, 20 Sep 2009 16:13:53 +0000 (18:13 +0200)]
perf timechart: Show the duration of scheduler delays in the SVG
Given that scheduler latencies are the hot thing nowadays, show the
duration of said latencies in the SVG in text form.
In addition, if the latency is more than 10 msec, pick a brighter
yellow color as a way to point these long delays out.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
20090920181353.
796f4509@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arjan van de Ven [Sun, 20 Sep 2009 16:13:28 +0000 (18:13 +0200)]
perf timechart: Show the name of the waker/wakee in timechart
Timechart currently shows thin green lines for sending or receiving
wakeups. This patch also prints (in a very small font) the name of
the process that is being woken/wakes up this process.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
20090920181328.
68baa978@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Sun, 20 Sep 2009 10:34:38 +0000 (12:34 +0200)]
tracing: Export trace_profile_buf symbols
ERROR: "trace_profile_buf_nmi" [fs/jbd2/jbd2.ko] undefined!
ERROR: "trace_profile_buf" [fs/jbd2/jbd2.ko] undefined!
ERROR: "trace_profile_buf_nmi" [fs/ext4/ext4.ko] undefined!
ERROR: "trace_profile_buf" [fs/ext4/ext4.ko] undefined!
ERROR: "trace_profile_buf_nmi" [arch/x86/kvm/kvm.ko] undefined!
ERROR: "trace_profile_buf" [arch/x86/kvm/kvm.ko] undefined!
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <
1253442878.7542.3.camel@laptop>
[ fixed whitespace noise and checkpatch complaint ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 11:04:24 +0000 (16:34 +0530)]
includecheck fix: x86, cpu/common.c
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>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 11:01:16 +0000 (16:31 +0530)]
includecheck fix: kernel/trace, ring_buffer.c
fix the following 'make includecheck' warning:
kernel/trace/ring_buffer.c: trace.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247068617.4382.107.camel@ht.satnam>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 10:54:00 +0000 (16:24 +0530)]
includecheck fix: include/linux, ftrace.h
fix the following 'make includecheck' warning:
include/linux/ftrace.h: linux/sched.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247068321.4382.102.camel@ht.satnam>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 10:50:44 +0000 (16:20 +0530)]
includecheck fix: include/linux, page_cgroup.h
fix the following 'make includecheck' warning:
include/linux/page_cgroup.h: linux/swap.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 10:39:20 +0000 (16:09 +0530)]
includecheck fix: include/linux, aio.h
fix the following 'make includecheck' warning:
include/linux/aio.h: linux/aio_abi.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: bcrl@kvack.org
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247068254.4382.101.camel@ht.satnam>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 10:23:25 +0000 (15:53 +0530)]
includecheck fix: include/drm, drm_memory.h
fix the following 'make includecheck' warning:
include/drm/drm_memory.h: linux/vmalloc.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247068169.4382.99.camel@ht.satnam>
Acked-by: Dave Airlie <airlied@redhat.com>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 10:18:42 +0000 (15:48 +0530)]
includecheck fix: include/acpi, acpi_bus.h
fix the following 'make includecheck' warning:
include/acpi/acpi_bus.h: linux/device.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247068058.4382.96.camel@ht.satnam>
Acked-by: Len Brown <len.brown@intel.com>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 10:11:10 +0000 (15:41 +0530)]
includecheck fix: drivers/xen, evtchn.c
fix the following 'make includecheck' warning:
drivers/xen/evtchn.c: linux/errno.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: chrisw@sous-sol.org
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247067749.4382.90.camel@ht.satnam>
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 09:58:01 +0000 (15:28 +0530)]
includecheck fix: drivers/video, vgacon.c
fix the following 'make includecheck' warning:
drivers/video/console/vgacon.c: linux/slab.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Martin Mares <mj@ucw.cz>
Cc: mchehab@infradead.org
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247067624.4382.88.camel@ht.satnam>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 09:53:00 +0000 (15:23 +0530)]
includecheck fix: drivers/scsi, ibmvscsi.c
fix the following 'make includecheck' warning:
drivers/scsi/ibmvscsi/ibmvscsi.c: asm/firmware.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247067016.4382.78.camel@ht.satnam>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 09:50:55 +0000 (15:20 +0530)]
includecheck fix: drivers/scsi, libfcoe.c
fix the following 'make includecheck' warning:
drivers/scsi/fcoe/libfcoe.c: linux/netdevice.h is included more than once.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
LKML-Reference: <
1247066936.4382.76.camel@ht.satnam>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 09:43:18 +0000 (15:13 +0530)]
includecheck fix: x86, shadow.c
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>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 09:39:26 +0000 (15:09 +0530)]
includecheck fix: x86, traps.c
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>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 09:11:40 +0000 (14:41 +0530)]
includecheck fix: um, helper.c
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>
Jaswinder Singh Rajput [Sun, 20 Sep 2009 09:08:09 +0000 (14:38 +0530)]
includecheck fix: s390, sys_s390.c
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>
Wolfram Sang [Sat, 19 Sep 2009 07:09:50 +0000 (09:09 +0200)]
[PATCH] i2c-imx: make bus available early
As I2C is used by PMICs also, make the busses available early via
subsys_initcall().
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Mikael Pettersson [Mon, 7 Sep 2009 10:00:13 +0000 (12:00 +0200)]
i2c-mv64xxx: correct mv64xxx_i2c_intr() return type
The mv64xxx_i2c_intr() irq handler in drivers/i2c/busses/i2c-mv64xxx.c
is declared as returning 'int', resulting in this compile-time warning:
drivers/i2c/busses/i2c-mv64xxx.c: In function 'mv64xxx_i2c_probe':
drivers/i2c/busses/i2c-mv64xxx.c:540: warning: passing argument 2 of 'request_irq' from incompatible pointer type
Fix: correct the return type to 'irqreturn_t'.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Alan Stern [Fri, 4 Sep 2009 19:29:59 +0000 (15:29 -0400)]
USB serial: update the console driver
This patch (as1292) modifies the USB serial console driver, to make it
compatible with the recent changes to the USB serial core. The most
important change is that serial->disc_mutex now has to be unlocked
following a successful call to usb_serial_get_by_index().
Other less notable changes include:
Use the requested port number instead of port 0 always.
Prevent the serial device from being autosuspended.
Use the ASYNCB_INITIALIZED flag bit to indicate when the
port hardware has been initialized.
In spite of these changes, there's no question that the USB serial
console code is still a big hack.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 1 Sep 2009 15:39:59 +0000 (11:39 -0400)]
usb-serial: straighten out serial_open
This patch (as1291) removes a bunch of code from serial_open(), things
that were rendered unnecessary by earlier patches. A missing spinlock
is added to protect port->port.count, which needs to be incremented
even if the open fails but not if the tty has gotten a hangup. The
test for whether the hardware has been initialized, based on the use
count, is replaced by a more transparent test of the
ASYNCB_INITIALIZED bit in the port flags.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 1 Sep 2009 15:39:51 +0000 (11:39 -0400)]
usb-serial: add missing tests and debug lines
This patch (as1290) adds some missing tests. serial_down() isn't
supposed to do anything if the hardware hasn't been initialized, and
serial_close() isn't supposed to do anything if the tty has gotten a
hangup (because serial_hangup() takes care of shutting down the
hardware).
The patch also updates and adds a few debugging lines.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 1 Sep 2009 15:39:40 +0000 (11:39 -0400)]
usb-serial: rename subroutines
This patch (as1289) renames serial_do_down() to serial_down() and
serial_do_free() to serial_release(). It also adds a missing call to
tty_shutdown() in serial_release().
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 1 Sep 2009 15:39:22 +0000 (11:39 -0400)]
usb-serial: fix termios initialization logic
This patch (as1288) fixes the initialization logic in
serial_install(). A new tty always needs to have a termios
initialized no matter what, not just in the case where the lower
driver will override the termios settings.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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