On 08/12/2013 04:22 AM, Felix Fietkau wrote:
Several DMA ops are no-op on many platforms, and the indirection through the mips_dma_map_ops function table is causing the compiler to emit unnecessary code. Inlining visibly improves network performance in my tests (on a 24Kc based system), and also slightly reduces code size of a few drivers. Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx> --- arch/mips/Kconfig | 4 + arch/mips/include/asm/dma-mapping.h | 360 +++++++++++++++++++++++++++++++++++- arch/mips/mm/dma-default.c | 161 ++-------------- 3 files changed, 372 insertions(+), 153 deletions(-)
That is not a very pleasing diffstat. David
