This patch series carries changes to reduce RPC call overhead by skippikng DMA API allocation calls for all type of buffer allocation requests. Cached buffer support enables caching of allocated buffers instead of freeing which can be reused for any new request. Persistent header buffer changes allocated a number for header buffers during CDSP process initialization which is then used for remote calls by the process. When any process make a remote call, the metadata buffer is first tried to be used from allocated persistent header buffers. If due to any reason, persistent header buffers are not available, the allocation request falls back to cached buffers and allocations using DMA API. Ekansh Gupta (2): misc: fastrpc: Add cached buffer support misc: fastrpc: Add persistent header buffer support drivers/misc/fastrpc.c | 348 ++++++++++++++++++++++++++++++++++++-------- include/uapi/misc/fastrpc.h | 8 + 2 files changed, 295 insertions(+), 61 deletions(-) -- 2.7.4
