Hi Doug, Thanks for your work. I will fix this mistake. Best regards, Jung **************************************** ??????????? (Rockchip) ?? (Jung Zhao) ????? (Algorithm Engineer) +86-591-83991906-8944 **************************************** -----????----- ???: dianders at google.com [mailto:dianders at google.com] ?? Doug Anderson ????: 2016?2?18? 0:12 ???: Jung Zhao ??: Tomasz Figa; Pawel Osciak; Mauro Carvalho Chehab; Hans Verkuil; Laurent Pinchart; Guennadi Liakhovetski; Philipp Zabel; open list:ARM/Rockchip SoC...; Linux Media Mailing List ??: Re: [PATCH v2 3/4] [NOT FOR REVIEW] videobuf2-dc: Let drivers specify DMA attrs Hi, On Wed, Feb 17, 2016 at 2:42 AM, Jung Zhao <jung.zhao at rock-chips.com> wrote: > From: Tomasz Figa <tfiga at chromium.org> > > DMA allocations might be subject to certain reqiurements specific to the > hardware using the buffers, such as availability of kernel mapping (for > contents fix-ups in the driver). The only entity that knows them is the > driver, so it must share this knowledge with vb2-dc. > > This patch extends the alloc_ctx initialization interface to let the > driver specify DMA attrs, which are then stored inside the allocation > context and will be used for all allocations with that context. > > As a side effect, all dma_*_coherent() calls are turned into > dma_*_attrs() calls, because the attributes need to be carried over > through all DMA operations. > > Signed-off-by: Tomasz Figa <tfiga at chromium.org> > Signed-off-by: Jung Zhao <jung.zhao at rock-chips.com> > --- > Changes in v2: None > > drivers/media/v4l2-core/videobuf2-dma-contig.c | 33 +++++++++++++++++--------- > include/media/videobuf2-dma-contig.h | 11 ++++++++- > 2 files changed, 32 insertions(+), 12 deletions(-) This patch is already present in linuxnext. I submitted it to Russell King's Patch Tracking System a bit ago and got notice that it landed. Checking linuxnext today I see: ccc66e738252 ARM: 8508/2: videobuf2-dc: Let drivers specify DMA attrs -Doug
