From: Stepan Moskovchenko <stepanm@codeaurora.org>
To: dwalker@codeaurora.org
Cc: davidb@codeaurora.org, bryanh@codeaurora.org,
linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stepan Moskovchenko <stepanm@codeaurora.org>
Subject: [PATCH 09/14 v2] msm: iommu: Kconfig item for cacheable page tables
Date: Mon, 15 Nov 2010 17:46:10 -0800 [thread overview]
Message-ID: <1289871970-18393-1-git-send-email-stepanm@codeaurora.org> (raw)
In-Reply-To: <1289619000-13167-10-git-send-email-stepanm@codeaurora.org>
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.
next prev parent reply other threads:[~2010-11-16 1:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-13 3:29 [PATCH 00/14] Improvements to the MSM IOMMU driver Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 01/14] msm: iommu: Increase maximum MID size to 5 bits Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 02/14] msm: iomap: Addresses and IRQs for 2nd GFX core IOMMU Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 03/14] msm: iommu: Use more consistent naming in platform data Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 04/14] msm: iommu: Revise GFX3D IOMMU contexts and M2V mappings Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 05/14] msm: iommu: Revise GFX2D0 " Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 06/14] msm: iommu: Support for the 2nd GFX core's IOMMU Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 07/14] msm: iommu: Mark functions with the right section names Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 08/14] msm: iommu: Don't flush page tables if no devices attached Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 09/14] msm: iommu: Kconfig option for cacheable page tables Stepan Moskovchenko
2010-11-14 20:17 ` Daniel Walker
2010-11-15 2:56 ` Stepan Moskovchenko
2010-11-15 18:20 ` Daniel Walker
2010-11-16 1:47 ` Stepan Moskovchenko
2010-11-16 1:46 ` Stepan Moskovchenko [this message]
2010-11-13 3:29 ` [PATCH 10/14] msm: iommu: Check if device is already attached Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 11/14] msm: iommu: Kconfig dependency for the IOMMU API Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 12/14] msm: iommu: Definitions for extended memory attributes Stepan Moskovchenko
2010-11-16 2:19 ` [PATCH 12/14 v2] " Stepan Moskovchenko
2010-11-13 3:29 ` [PATCH 13/14] msm: iommu: Support cache-coherent memory access Stepan Moskovchenko
2010-11-16 2:20 ` [PATCH 13/14 v2] " Stepan Moskovchenko
2010-11-13 3:30 ` [PATCH 14/14] msm: iommu: Miscellaneous code cleanup Stepan Moskovchenko
2010-11-16 0:25 ` Daniel Walker
2010-11-16 1:16 ` Stepan Moskovchenko
2010-11-16 20:45 ` Daniel Walker
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