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Yong Zhang 879e33f32e ARM: cmpxchg: define __HAVE_ARCH_CMPXCHG for armv6 and later 
Both pi_stress and sigwaittest in rt-test show performance gain with
__HAVE_ARCH_CMPXCHG. Testing result on coretile_express_a9x4:

pi_stress -p 99 --duration=300 (on linux-3.4-rc5; bigger is better)
  vanilla:     Total inversion performed: 5493381
  patched:     Total inversion performed: 5621746

sigwaittest -p 99 -l 100000 (on linux-3.4-rc5-rt6; less is better)
  3.4-rc5-rt6: Min   24, Cur   27, Avg   30, Max   98
  patched:     Min   19, Cur   21, Avg   23, Max   96

Signed-off-by: Yong Zhang <yong.zhang0 at gmail.com>
Cc: Russell King <rmk+kernel at arm.linux.org.uk>
Cc: Nicolas Pitre <nico at linaro.org>
Cc: Will Deacon <will.deacon at arm.com>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: linux-arm-kernel at lists.infradead.org
Cc: stable-rt@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
 		2020-10-14 00:59:24 +03:00
..
boot ARM: dts: imx27: only map 4 Kbyte for fec registers 2015-06-06 08:19:37 -07:00
common ARM: common: edma: Fix xbar mapping 2014-06-07 10:28:17 -07:00
configs Add USB_EHCI_EXYNOS to multi_v7_defconfig 2015-01-16 06:59:32 -08:00
crypto crypto: arm/aes update NEON AES module to latest OpenSSL version 2015-03-26 15:06:57 +01:00
firmware ARM: add basic support for Trusted Foundations 2013-12-13 12:50:30 -07:00
include ARM: cmpxchg: define __HAVE_ARCH_CMPXCHG for armv6 and later 2020-10-14 00:59:24 +03:00
kernel arm-preempt-lazy-support.patch 2020-10-14 00:59:22 +03:00
kvm KVM: ARM/arm64: avoid returning negative error code as bool 2015-06-29 12:25:38 -07:00
lib ARM: 7877/1: use built-in byte swap function 2013-12-29 12:32:45 +00:00
mach-at91 ARM: AT91: PIT: Remove irq handler when clock event is unused 2020-10-14 00:59:09 +03:00
mach-bcm ARM: pinctrl: Add Broadcom Capri pinctrl driver 2014-01-16 14:25:38 +01:00
mach-bcm2835 ARM: bcm2835: Fix grammar in help message 2014-01-02 12:07:52 -08:00
mach-berlin ARM: add initial support for Marvell Berlin SoCs 2013-12-13 16:31:07 +01:00
mach-clps711x ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-cns3xxx
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mach-davinci ARM: driver updates for 3.14 2014-01-23 18:49:36 -08:00
mach-dove ARM: Dove: Fix compiler warnings with C=1 builds 2013-11-24 02:36:55 +00:00
mach-ebsa110
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mach-efm32 ARM: new platform for Energy Micro's EFM32 Cortex-M3 SoCs 2013-12-16 17:51:33 +01:00
mach-ep93xx ARM: ep93xx: use soc bus 2013-11-25 14:24:28 -08:00
mach-exynos preempt-rt: Convert arm boot_lock to raw 2020-10-14 00:59:08 +03:00
mach-footbridge Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-01-24 17:17:30 -08:00
mach-gemini GPIO bulk changes for the v3.13 development cycle 2013-11-12 15:50:46 +09:00
mach-highbank Merge branches 'amba', 'fixes', 'kees', 'misc' and 'unstable/sa11x0' into for-next 2014-01-21 21:26:33 +00:00
mach-hisi ARM: hisi: fix kconfig warning on HAVE_ARM_TWD 2014-02-02 19:52:42 -08:00
mach-imx ARM: clk-imx6q: fix video divider for rev T0 1.0 2015-01-27 08:18:58 -08:00
mach-integrator ARM: integrator: restore static map on the CP 2014-01-31 14:58:52 -08:00
mach-iop13xx dmaengine: remove DMA unmap from drivers 2013-11-14 11:04:38 -08:00
mach-iop32x ARM: iop32x: fix power off handling for the EM7210 board 2014-01-31 14:58:53 -08:00
mach-iop33x
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mach-ixp4xx ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-keystone ARM: keystone: config: fix build warning when CONFIG_DMADEVICES is not set 2014-01-31 15:03:53 -08:00
mach-kirkwood mvebu fixes for v3.13 (incremental #2) 2014-01-31 14:59:28 -08:00
mach-ks8695 ARM: ks8695: delete local <mach/gpio.h> header 2013-12-03 11:26:05 +01:00
mach-lpc32xx ARM: lpc32xx: move custom GPIO header 2013-12-03 11:26:06 +01:00
mach-mmp ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-moxart ARM: moxart: move DMA_OF selection to driver 2014-02-02 19:52:45 -08:00
mach-msm preempt-rt: Convert arm boot_lock to raw 2020-10-14 00:59:08 +03:00
mach-mv78xx0 ARM: mv78xx0: delete local <mach/gpio.h> header 2013-12-03 11:26:06 +01:00
mach-mvebu ARM: mvebu: disable I/O coherency on non-SMP situations on Armada 370/375/38x/XP 2015-01-16 06:59:34 -08:00
mach-mxs ARM: SoC DT updates for 3.13 2013-11-11 17:34:56 +09:00
mach-netx
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mach-nomadik ARM: nomadik: get rid of explicit ethernet GPIO management 2013-11-28 21:08:42 +01:00
mach-nspire
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mach-omap1 ARM: OMAP: replace checks for CONFIG_USB_GADGET_OMAP 2014-06-30 20:11:53 -07:00
mach-omap2 preempt-rt: Convert arm boot_lock to raw 2020-10-14 00:59:08 +03:00
mach-orion5x ARM: orion5x: fix target ID for crypto SRAM window 2014-06-07 10:28:17 -07:00
mach-picoxcell
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mach-prima2 preempt-rt: Convert arm boot_lock to raw 2020-10-14 00:59:08 +03:00
mach-pxa hx4700: regulator: declare full constraints 2015-03-06 14:43:31 -08:00
mach-realview
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mach-rockchip ARM: SoC board updates for 3.13 2013-11-11 16:57:16 +09:00
mach-rpc
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mach-s3c24xx ARM: SoC cleanups for 3.14 2014-01-23 18:36:55 -08:00
mach-s3c64xx ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore 2015-05-06 21:59:11 +02:00
mach-s5p64x0
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mach-s5pc100
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mach-s5pv210 pwm: Changes for v3.13-rc1 2013-11-16 12:21:40 -08:00
mach-sa1100 ARM: 8284/1: sa1100: clear RCSR_SMR on resume 2015-03-06 14:43:28 -08:00
mach-shmobile ARM: shmobile: sh73a0 legacy: Set .control_parent for all irqpin instances 2015-01-27 08:18:58 -08:00
mach-socfpga arm: socfpga: Enable ARM_TWD for socfpga 2013-12-03 14:19:48 -08:00
mach-spear preempt-rt: Convert arm boot_lock to raw 2020-10-14 00:59:08 +03:00
mach-sti preempt-rt: Convert arm boot_lock to raw 2020-10-14 00:59:08 +03:00
mach-sunxi ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-tegra ARM: tegra: Re-add removed SoC id macro to tegra_resume() 2015-01-08 10:00:49 -08:00
mach-u300 ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
mach-ux500 preempt-rt: Convert arm boot_lock to raw 2020-10-14 00:59:08 +03:00
mach-versatile ARM: versatile: move GPIO2 and GPIO3 to core 2013-12-20 18:22:47 +01:00
mach-vexpress ARM: vexpress/TC2: Implement MCPM power_down_finish() 2013-11-25 14:12:14 -08:00
mach-virt
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mach-vt8500
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mach-w90x900
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mach-zynq ARM: zynq: Reserve not DMAable space in front of the kernel 2014-02-10 10:45:42 -08:00
mm ARM: enable irq in translation/section permission fault handlers 2020-10-14 00:59:24 +03:00
net ARM: net fix emit_udiv() for BPF_ALU | BPF_DIV | BPF_K intruction. 2015-05-17 09:53:50 -07:00
nwfpe
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oprofile
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plat-iop Merge branch 'soc/sched_clock' into next/soc 2013-12-06 08:05:55 -08:00
plat-omap Merge branch 'efm32/soc' into next/soc 2013-12-20 08:59:30 -08:00
plat-orion mvebu fixes for v3.13 (incremental #2) 2014-01-31 14:59:28 -08:00
plat-pxa ARM: pxa: remove IRQF_DISABLED 2013-12-11 17:32:41 -08:00
plat-samsung MTD updates for 3.14: 2014-01-28 18:56:37 -08:00
plat-versatile preempt-rt: Convert arm boot_lock to raw 2020-10-14 00:59:08 +03:00
tools
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vfp ARM: 7873/1: vfp: clear vfp_current_hw_state for dying cpu 2013-10-30 22:10:10 +00:00
xen xen/gnttab: Use phys_addr_t to describe the grant frame base address 2014-01-30 12:56:34 +00:00
Kconfig arm-preempt-lazy-support.patch 2020-10-14 00:59:22 +03:00
Kconfig-nommu
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Kconfig.debug ARM: SoC platform changes for 3.14 2014-01-23 18:40:49 -08:00
Makefile Merge branches 'fixes' and 'misc' into for-linus 2014-01-28 21:38:48 +00:00