On Mon, Nov 10, 2014 at 8:49 PM, Hans Verkuil hverk...@xs4all.nl wrote:
From: Hans Verkuil hans.verk...@cisco.com
By default dma_map_sg syncs the mapped buffer to the device. But
buf_prepare expects a buffer syncs for the cpu and the buffer
will be synced to the device in the prepare memop.
On 11/18/14 10:55, Pawel Osciak wrote:
On Mon, Nov 10, 2014 at 8:49 PM, Hans Verkuil hverk...@xs4all.nl wrote:
From: Hans Verkuil hans.verk...@cisco.com
By default dma_map_sg syncs the mapped buffer to the device. But
buf_prepare expects a buffer syncs for the cpu and the buffer
will be
From: Hans Verkuil hans.verk...@cisco.com
By default dma_map_sg syncs the mapped buffer to the device. But
buf_prepare expects a buffer syncs for the cpu and the buffer
will be synced to the device in the prepare memop.
The reverse is true for dma_unmap_sg, buf_finish and the finish
memop.
To
