Commit 3bc28c8e authored Jan 18, 2011 by Russell King

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>

parent fbb4ddac

arch/arm/mm/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -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