Lines Matching +full:dma +full:- +full:requests

11 pre-fetch makes the cache overhead relatively significant. If the DMA
13 transfer, the DMA preparation overhead would not affect the MMC performance.
15 The intention of non-blocking (asynchronous) MMC requests is to minimize the
19 dma_unmap_sg are processing. Using non-blocking MMC requests makes it
26 The mmc_blk_issue_rw_rq() in the MMC block driver is made non-blocking.
33 platform. In power save mode, when clocks run on a lower frequency, the DMA
40 https://wiki.linaro.org/WorkingGroups/Kernel/Specs/StoragePerfMMC-async-req
48 truly non-blocking. If there is an ongoing async request it waits
56 There are two optional members in the mmc_host_ops -- pre_req() and
57 post_req() -- that the host driver may implement in order to move work
60 In the DMA case pre_req() may do dma_map_sg() and prepare the DMA
66 The first request in a series of requests can't be prepared in parallel
77   if (is_first_req && req->size > threshold)
82       * Begin to prepare DMA while cmd is being processed by MMC.
90       dma_issue_pending(req->dma_desc);
98       dma_issue_pending(req->dma_desc);