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| author | Catalin Marinas <catalin.marinas@arm.com> | 2010-05-07 18:03:05 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-05-08 10:44:30 +0100 |
| commit | b8349b569aae661dea9d59d7d2ee587ccea3336c (patch) | |
| tree | 297ce3147521e0658321d61114a045bef4eca1d0 /arch/arm/include/asm/cacheflush.h | |
| parent | f4d6477f7f073b99220386d62f5bf54bec3482cc (diff) | |
| download | op-kernel-dev-b8349b569aae661dea9d59d7d2ee587ccea3336c.zip op-kernel-dev-b8349b569aae661dea9d59d7d2ee587ccea3336c.tar.gz | |
ARM: 6112/1: Use the Inner Shareable I-cache and BTB ops on ARMv7 SMP
The standard I-cache Invalidate All (ICIALLU) and Branch Predication
Invalidate All (BPIALL) operations are not automatically broadcast to
the other CPUs in an ARMv7 MP system. The patch adds the Inner Shareable
variants, ICIALLUIS and BPIALLIS, if ARMv7 and SMP.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/cacheflush.h')
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 0d08d41..4656a24 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -371,6 +371,10 @@ static inline void __flush_icache_all(void) #ifdef CONFIG_ARM_ERRATA_411920 extern void v6_icache_inval_all(void); v6_icache_inval_all(); +#elif defined(CONFIG_SMP) && __LINUX_ARM_ARCH__ >= 7 + asm("mcr p15, 0, %0, c7, c1, 0 @ invalidate I-cache inner shareable\n" + : + : "r" (0)); #else asm("mcr p15, 0, %0, c7, c5, 0 @ invalidate I-cache\n" : |
