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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-18 13:30:33 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-02-02 21:23:32 +0000 |
| commit | 3bc28c8edc4f5f78d9ec23fb0f20df29b7b3a072 (patch) | |
| tree | bb252f487da02437c014023d258048a580d7c730 /arch | |
| parent | fbb4ddacb6b70b3178fcb7e3debc5180e6b6cd2f (diff) | |
| download | kernel_samsung_aries-3bc28c8edc4f5f78d9ec23fb0f20df29b7b3a072.zip kernel_samsung_aries-3bc28c8edc4f5f78d9ec23fb0f20df29b7b3a072.tar.gz kernel_samsung_aries-3bc28c8edc4f5f78d9ec23fb0f20df29b7b3a072.tar.bz2 | |
ARM: v6k: DMA_CACHE_RWFO isn't appropriate for non-v6k CPUs
Limit DMA_CACHE_RWFO to only v6k SMP CPUs - V6 CPUs aren't SMP capable,
so the read/write for ownership work-around doesn't apply to them.
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 843bc8c..808b832 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -775,7 +775,7 @@ config NEEDS_SYSCALL_FOR_CMPXCHG config DMA_CACHE_RWFO bool "Enable read/write for ownership DMA cache maintenance" - depends on (CPU_V6 || CPU_V6K) && SMP + depends on CPU_V6K && SMP default y help The Snoop Control Unit on ARM11MPCore does not detect the |