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>
3 files changed