defconfig: msm: Disable CONFIG_MMC_BLOCK_BOUNCE
MMC_BLOCK_BOUNCE is useful only when the underlying
SDCC host controller cannot do scatter-gather operations.
Enabling this involves memcpy() of non-contiguous memory
to contiguous allocation by cpu which degrades overall
system performance.
As MSM SDCC controller can do scatter-gather operations,
disable this config option and allow data mover to handle
the payload.
Change-Id: I9000c8b99e44910a6cb7a821963aef0f99feb077
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
diff --git a/arch/arm/configs/msm8660-perf_defconfig b/arch/arm/configs/msm8660-perf_defconfig
index 51c64d3..de58931 100644
--- a/arch/arm/configs/msm8660-perf_defconfig
+++ b/arch/arm/configs/msm8660-perf_defconfig
@@ -367,6 +367,7 @@
CONFIG_MMC_EMBEDDED_SDIO=y
CONFIG_MMC_PARANOID_SD_INIT=y
CONFIG_MMC_BLOCK_MINORS=32
+# CONFIG_MMC_BLOCK_BOUNCE is not set
CONFIG_MMC_MSM=y
CONFIG_MMC_MSM_SDIO_SUPPORT=y
CONFIG_MMC_MSM_CARD_HW_DETECTION=y
diff --git a/arch/arm/configs/msm8660_defconfig b/arch/arm/configs/msm8660_defconfig
index e8708f3..6d99df7 100644
--- a/arch/arm/configs/msm8660_defconfig
+++ b/arch/arm/configs/msm8660_defconfig
@@ -354,6 +354,7 @@
CONFIG_MMC_EMBEDDED_SDIO=y
CONFIG_MMC_PARANOID_SD_INIT=y
CONFIG_MMC_BLOCK_MINORS=32
+# CONFIG_MMC_BLOCK_BOUNCE is not set
CONFIG_MMC_MSM=y
CONFIG_MMC_MSM_SDIO_SUPPORT=y
CONFIG_MMC_MSM_CARD_HW_DETECTION=y
diff --git a/arch/arm/configs/msm8960_defconfig b/arch/arm/configs/msm8960_defconfig
index ce15b0d..43af097 100755
--- a/arch/arm/configs/msm8960_defconfig
+++ b/arch/arm/configs/msm8960_defconfig
@@ -349,6 +349,7 @@
CONFIG_MMC_CLKGATE=y
CONFIG_MMC_PARANOID_SD_INIT=y
CONFIG_MMC_BLOCK_MINORS=32
+# CONFIG_MMC_BLOCK_BOUNCE is not set
CONFIG_MMC_MSM=y
CONFIG_MMC_MSM_CARD_HW_DETECTION=y
CONFIG_MMC_MSM_SDC1_8_BIT_SUPPORT=y