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linux_dsm_epyc7002/arch/arm
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Peter Zijlstra a8b0ca17b8 perf: Remove the nmi parameter from the swevent and overflow interface 
The nmi parameter indicated if we could do wakeups from the current
context, if not, we would set some state and self-IPI and let the
resulting interrupt do the wakeup.

For the various event classes:

  - hardware: nmi=0; PMI is in fact an NMI or we run irq_work_run from
    the PMI-tail (ARM etc.)
  - tracepoint: nmi=0; since tracepoint could be from NMI context.
  - software: nmi=[0,1]; some, like the schedule thing cannot
    perform wakeups, and hence need 0.

As one can see, there is very little nmi=1 usage, and the down-side of
not using it is that on some platforms some software events can have a
jiffy delay in wakeup (when arch_irq_work_raise isn't implemented).

The up-side however is that we can remove the nmi parameter and save a
bunch of conditionals in fast paths.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Michael Cree <mcree@orcon.net.nz>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Eric B Munson <emunson@mgebm.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Don Zickus <dzickus@redhat.com>
Link: http://lkml.kernel.org/n/tip-agjev8eu666tvknpb3iaj0fg@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-07-01 11:06:35 +02:00
..
boot ARM: 6961/1: zImage: Add build-time check for correctly-sized proc_type entries 2011-06-21 11:33:20 +01:00
common Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable 2011-05-25 21:47:48 +01:00
configs rtc: fix build warnings in defconfigs 2011-06-15 20:04:02 -07:00
include/asm ARM: 6959/1: SMP build fix for entry-macro-multi.S 2011-06-17 11:25:03 +01:00
kernel perf: Remove the nmi parameter from the swevent and overflow interface 2011-07-01 11:06:35 +02:00
lib ARM: 6945/1: Add unwinding support for division functions 2011-05-27 22:56:53 +01:00
mach-at91 at91: drop at572d940hf support 2011-05-25 23:04:35 +08:00
mach-bcmring ARM: bcmring: convert to use sp804 clockevents 2011-05-23 18:04:54 +01:00
mach-clps711x arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-cns3xxx ARM: P2V: separate PHYS_OFFSET from platform definitions 2011-02-17 23:26:55 +00:00
mach-davinci davinci: make PCM platform devices static 2011-06-08 14:41:37 +05:30
mach-dove ARM: dove: Consolidate mpp code with platform mpp. 2011-05-16 15:49:31 -04:00
mach-ebsa110 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-ep93xx ep93xx: set DMA masks for the ep93xx_eth 2011-06-11 16:25:15 -07:00
mach-exynos4 ARM: EXYNOS4: Remove compiler warning on exynos4_pwm4_resume 2011-06-03 16:22:01 -07:00
mach-footbridge ARM: footbridge: fix clock event support 2011-06-11 00:46:17 +01:00
mach-gemini Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-h720x ARM: 6962/1: mach-h720x: fix build error 2011-06-17 11:25:03 +01:00
mach-imx ARM: imx: move mx3 support to mach-imx 2011-05-19 13:11:38 +02:00
mach-integrator Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-iop13xx Fix common misspellings 2011-03-31 11:26:23 -03:00
mach-iop32x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-iop33x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-ixp4xx Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-ixp23xx arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-ixp2000 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-kirkwood ARM: orion: Refactor the MPP code common in the orion platform 2011-05-16 15:25:54 -04:00
mach-ks8695 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-l7200/include/mach
mach-loki ARM: orion: Consolidate ethernet platform data 2011-05-16 15:06:01 -04:00
mach-lpc32xx clocksource: convert ARM 32-bit up counting clocksources 2011-05-23 18:04:51 +01:00
mach-mmp Merge branch 'zImage_fixes' of git://git.linaro.org/people/nico/linux into devel-stable 2011-05-07 08:34:02 +01:00
mach-msm msm: timer: Fix DGT rate on 8960 and 8660 2011-06-20 16:30:07 -07:00
mach-mv78xx0 ARM: orion: Refactor the MPP code common in the orion platform 2011-05-16 15:25:54 -04:00
mach-mx5 ARM: mxc: don't allow to compile together i.MX51 and i.MX53 2011-05-19 13:11:30 +02:00
mach-mxs arm: mxs: include asm/processor.h for cpu_relax() 2011-06-06 09:50:04 +02:00
mach-netx ARM: 6827/1: mach-netx: delete hardcoded periphid 2011-05-26 10:33:34 +01:00
mach-nomadik gpio: move Nomadik GPIO driver to drivers/gpio 2011-05-26 17:30:03 -06:00
mach-nuc93x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-omap1 OMAP1: PM: register notifiers with generic clock ops even when !PM_RUNTIME 2011-06-14 05:53:18 -07:00
mach-omap2 Merge branch 'fixes-v3.0-rc3' into devel-fixes 2011-06-14 05:53:42 -07:00
mach-orion5x ARM: orion5x: Refactor mpp code to use common orion platform mpp. 2011-05-16 15:42:59 -04:00
mach-pnx4008 arm: Cleanup the irq namespace 2011-03-29 14:47:57 +02:00
mach-pxa gpio: include linux/gpio.h where needed 2011-06-16 08:40:44 -06:00
mach-realview Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-rpc ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-s3c24a0/include/mach ARM: P2V: separate PHYS_OFFSET from platform definitions 2011-02-17 23:26:55 +00:00
mach-s3c64xx Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable 2011-05-25 21:47:48 +01:00
mach-s3c2400 ARM: P2V: separate PHYS_OFFSET from platform definitions 2011-02-17 23:26:55 +00:00
mach-s3c2410 ARM: S3C2410: remove the now empty mach-s3c2410/irq.c 2011-06-03 18:36:53 -07:00
mach-s3c2412 ARM / Samsung: Use struct syscore_ops for "core" power management 2011-04-24 19:16:10 +02:00
mach-s3c2416 Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2011-05-23 12:33:02 -07:00
mach-s3c2440 ARM / Samsung: Use struct syscore_ops for "core" power management 2011-04-24 19:16:10 +02:00
mach-s3c2443 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-s5p64x0 ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-s5pc100 gpio: Move the s5pc100 GPIO to drivers/gpio 2011-05-26 17:33:41 -06:00
mach-s5pv210 ARM: S5PV210: Fix possible null pointer dereference 2011-06-01 15:06:35 -07:00
mach-sa1100 Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-shark ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizes 2011-05-12 08:36:53 +01:00
mach-shmobile ARM: mach-shmobile: mackerel: tidyup usbhs driver settings 2011-06-15 16:03:17 +09:00
mach-spear3xx ARM: 6931/1: SPEAr3xx: Rework KConfig to allow all boards to be compiled in 2011-05-20 22:34:25 +01:00
mach-spear6xx ARM: 6934/1: SPEAr6xx: Rework Kconfig for single image solution 2011-05-20 22:34:25 +01:00
mach-tcc8k clocksource: convert ARM 32-bit up counting clocksources 2011-05-23 18:04:51 +01:00
mach-tegra ARM: Tegra: Harmony: Fix conflicting GPIO numbering 2011-06-04 15:51:52 -07:00
mach-u300 ARM: 6949/2: mach-u300: fix compilaton warning in IO accessors 2011-06-09 10:15:06 +01:00
mach-ux500 gpio/nomadik: fix sleepmode for elder Nomadik 2011-06-09 15:03:38 -06:00
mach-versatile Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-vexpress ARM: 6946/1: vexpress: move v2m clock init to init_early 2011-06-06 10:56:09 +01:00
mach-vt8500 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-w90x900 Merge branch 'devel-stable' into for-linus 2011-05-23 19:28:04 +01:00
mm perf: Remove the nmi parameter from the swevent and overflow interface 2011-07-01 11:06:35 +02:00
nwfpe
oprofile Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-02-15 10:18:48 -08:00
plat-iop ARM: 6969/1: plat-iop: fix build error 2011-06-21 11:33:21 +01:00
plat-mxc ARM: mx51/sdma: Check the chip revision in run-time 2011-06-06 09:50:04 +02:00
plat-nomadik gpio/nomadik: fix sleepmode for elder Nomadik 2011-06-09 15:03:38 -06:00
plat-omap Merge branch 'fixes-v3.0-rc3' into devel-fixes 2011-06-14 05:53:42 -07:00
plat-orion Merge branch 'devel-stable' into for-linus 2011-05-23 19:28:04 +01:00
plat-pxa ARM / PXA: Use struct syscore_ops for "core" power management 2011-04-24 19:16:09 +02:00
plat-s3c24xx ARM: S3C24XX: Move s3c24xx_irq_syscore_ops to plat-s3c24xx/irq.c 2011-06-03 18:36:52 -07:00
plat-s5p ARM: SAMSUNG: Remove unused onenand plat functions 2011-06-03 16:45:02 -07:00
plat-samsung ARM: SAMSUNG: Remove unused onenand plat functions 2011-06-03 16:45:02 -07:00
plat-spear Merge branches 'consolidate', 'ep93xx', 'fixes', 'misc', 'mmci', 'remove' and 'spear' into for-linus 2011-05-23 19:27:40 +01:00
plat-tcc ARM: P2V: separate PHYS_OFFSET from platform definitions 2011-02-17 23:26:55 +00:00
plat-versatile ARM: consolidate SMP cross call implementation 2011-05-23 16:53:17 +01:00
tools ARM: Update mach-types 2011-05-14 21:36:55 +01:00
vfp ARM: Use struct syscore_ops instead of sysdevs for PM in common code 2011-04-24 19:16:08 +02:00
Kconfig Merge branches 'devel', 'devel-stable' and 'fixes' into for-linus 2011-05-27 22:59:57 +01:00
Kconfig-nommu Fix common misspellings 2011-03-31 11:26:23 -03:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable 2011-05-25 21:47:48 +01:00