lkml.org 
[lkml]   [2010]   [Nov]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 09/14 v2] msm: iommu: Kconfig item for cacheable page tables
Date
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>
---
arch/arm/mach-msm/Kconfig | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)

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
--
1.7.0.2
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.



\
 
 \ /
  Last update: 2010-11-16 02:51    [W:0.089 / U:0.464 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site