From 2607b0a26094b2d2d174c3e27b2ecc9c49d86f40 Mon Sep 17 00:00:00 2001 From: Stepan Moskovchenko Date: Mon, 15 Nov 2010 17:46:10 -0800 Subject: 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 Signed-off-by: Daniel Walker --- arch/arm/mach-msm/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig index dbbcfeb..1c6f76b 100644 --- a/arch/arm/mach-msm/Kconfig +++ b/arch/arm/mach-msm/Kconfig @@ -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 -- cgit v1.1