Commit 2607b0a2 authored Nov 15, 2010 by Stepan Moskovchenko Committed by Daniel Walker Nov 30, 2010

msm: iommu: Kconfig item for cacheable page tables



Add a Kconfig item to allow the IOMMU page tables to be
coherent in the L2 cache. This generally reduces IOTLB miss
latencies and has been shown to improve multimedia
performance.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

parent f6f41eb9

arch/arm/mach-msm/Kconfig

+4 −0

Original line number	Diff line number	Diff line
		@@ -122,6 +122,10 @@ config MACH_MSM8X60_FFA

		endmenu

		config IOMMU_PGTABLES_L2
		def_bool y
		depends on ARCH_MSM8X60 && MMU && SMP && CPU_DCACHE_DISABLE=n

		config MSM_DEBUG_UART
		int
		default 1 if MSM_DEBUG_UART1