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0214f9221a
kernel-ark/arch/arm
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Russell King 0214f9221a [ARM] Fix FIQ issue with ARM926 
Jon Eibertzon writes:
> We have noticed that the I-cache is disabled while waiting for
> interrupt in cpu_arm926_do_idle in arch/arm/mm/proc-arm926.S
> and we are curious to know why, because this causes us a great
> performance hit when executing in FIQ-handlers. Is it assumed
> here that every individual FIQ-handler re-enables the I-cache?

The I-cache disable is an errata workaround, so the solution is to
disable FIQs across the section with the I-cache disabled.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-10-31 15:21:40 +00:00
..
boot Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00
common arm: build fix 2007-10-23 09:11:41 +02:00
configs Merge branch 'pxa' into devel 2007-10-15 18:56:02 +01:00
kernel Use helpers to obtain task pid in printks (arch code) 2007-10-19 11:53:43 -07:00
lib [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-aaec2000 Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-at91 Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
mach-clps711x Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-clps7500 [ARM] cleanup struct irqaction initializers 2007-10-12 23:43:20 +01:00
mach-davinci clockevents: fix resume logic 2007-07-21 17:49:15 -07:00
mach-ebsa110 [ARM] EBSA110: fix build errors caused by missing "const" 2007-05-11 17:20:02 +01:00
mach-ep93xx [ARM] 4572/1: ep93xx: add cirrus logic edb9307 support 2007-10-12 23:43:44 +01:00
mach-footbridge Remove magic macros for screen_info structure members 2007-10-16 22:57:17 -07:00
mach-h720x [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-imx Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq 2007-10-12 15:42:01 -07:00
mach-integrator [ARM] integrator: fix pci_v3 compile error with DEBUG_LL 2007-05-17 10:16:55 +01:00
mach-iop13xx some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
mach-iop32x [ARM] 4491/1: em7210 rtc clock 2007-07-20 17:29:35 +01:00
mach-iop33x iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver 2007-07-13 08:06:19 -07:00
mach-ixp4xx Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-07-22 11:22:59 -07:00
mach-ixp23xx [ARM] Fix some section mismatch warnings 2007-05-30 17:48:45 +01:00
mach-ixp2000 Kbuild/doc: fix links to Documentation files 2007-10-30 14:26:30 -07:00
mach-ks8695 [ARM] 4549/1: KS8695: Fix build errors 2007-08-14 17:23:55 +01:00
mach-l7200 [ARM] Remove compatibility layer for ARM irqs 2006-11-30 12:24:47 +00:00
mach-lh7a40x [ARM] spelling fixes 2007-05-20 20:10:32 +01:00
mach-mx3 [ARM] 4461/1: MXC platform and i.MX31ADS core support 2007-07-22 15:44:46 +01:00
mach-netx [ARM] Fix netx_defconfig regression 2007-10-31 15:21:37 +00:00
mach-ns9xxx [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32 2007-10-12 23:43:41 +01:00
mach-omap1 [ARM] Fix omap_h2_1610_defconfig regressions 2007-10-31 15:21:34 +00:00
mach-omap2 Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
mach-pnx4008 PM: Rename struct pm_ops and related things 2007-10-18 14:37:18 -07:00
mach-pxa [ARM] 4613/1: pxa300: MFP typo fix 2007-10-20 23:42:04 +01:00
mach-realview [ARM] realview: disable second GIC on RevB MPCore platforms 2007-09-13 15:10:25 +01:00
mach-rpc [ARM] rpc: convert an outb() to writeb() 2007-07-20 21:29:39 +01:00
mach-s3c2400 [ARM] 4157/2: S3C24XX: move arch/arch/mach-s3c2410 into cpu components 2007-02-11 17:36:09 +00:00
mach-s3c2410 Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
mach-s3c2412 Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
mach-s3c2440 s3c2410fb: removes lcdcon1 register value from s3c2410fb_display 2007-10-16 09:43:18 -07:00
mach-s3c2442 [ARM] 4546/1: s3c2410: fix architecture typo for s3c2442 2007-08-14 17:23:49 +01:00
mach-s3c2443 Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
mach-sa1100 PM: Rename struct pm_ops and related things 2007-10-18 14:37:18 -07:00
mach-shark Add IRQF_IRQPOLL flag on arm 2007-05-08 11:15:22 -07:00
mach-versatile [ARM] 4454/1: Use word accesses in Versatile PCI config reads 2007-07-02 13:39:35 +01:00
mm [ARM] Fix FIQ issue with ARM926 2007-10-31 15:21:40 +00:00
nwfpe Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
oprofile Combine instrumentation menus in kernel/Kconfig.instrumentation 2007-10-19 11:53:54 -07:00
plat-iop [ARM] 4495/1: iop: combined watchdog timer driver for iop3xx and iop13xx 2007-07-20 09:35:42 +01:00
plat-mxc [ARM] 4461/1: MXC platform and i.MX31ADS core support 2007-07-22 15:44:46 +01:00
plat-omap Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
plat-s3c [ARM] 4518/1: S3C: Rename watchdog configuration options 2007-07-22 16:44:38 +01:00
plat-s3c24xx PM: Rename struct pm_ops and related things 2007-10-18 14:37:18 -07:00
tools [ARM] Update mach-types 2007-05-11 19:54:39 +01:00
vfp [ARM] 4630/1: Fix the vector stride of the double vector instruction. 2007-10-20 23:42:22 +01:00
Kconfig typo fixes 2007-10-20 01:34:40 +02:00
Kconfig-nommu [ARM] 4532/1: allow configuration of processor ID 2007-10-12 23:43:02 +01:00
Kconfig.debug [ARM] 4514/1: S3C: Rename DEBUG_S3C2410_PORT and DEBUG_S3C_UART 2007-07-22 16:44:33 +01:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-10-16 11:23:06 -07:00