Messages in this thread | | | From | Maxime Ripard <> | Subject | [PATCH 0/2] dmaengine: Add scatter-gathered memset support | Date | Mon, 6 Jul 2015 12:19:22 +0200 |
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Hi Vinod,
Here is a patch serie that adds a new dmaengine operation for scatter-gathered memset.
Indeed, doing a memset over a discontiguous buffer is quite inefficient at the moment, since you have to create and submit each chunk separately, which might result in a huge list of transfers, while some controllers can handle that just fine.
Let me know what you think, Maxime
Maxime Ripard (2): dmaengine: Add scatter-gathered memset dmaengine: xdmac: Add scatter gathered memset support
drivers/dma/at_xdmac.c | 166 +++++++++++++++++++++++++++++++++++++++++++++- include/linux/dmaengine.h | 5 ++ 2 files changed, 170 insertions(+), 1 deletion(-)
-- 2.4.5
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