| Message ID | 1339681069-8483-11-git-send-email-t.stanislaws@samsung.com |
|---|---|
| State | New |
| Headers | show |
Hi Tomasz, Thanks for the patch. On Thursday 14 June 2012 15:37:44 Tomasz Stanislawski wrote: > From: Marek Szyprowski <m.szyprowski@samsung.com> > > Add prepare/finish callbacks to vb2-dma-contig allocator. > > Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > --- > drivers/media/video/videobuf2-dma-contig.c | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/drivers/media/video/videobuf2-dma-contig.c > b/drivers/media/video/videobuf2-dma-contig.c index 94f0874..f9286d7 100644 > --- a/drivers/media/video/videobuf2-dma-contig.c > +++ b/drivers/media/video/videobuf2-dma-contig.c > @@ -103,6 +103,28 @@ static unsigned int vb2_dc_num_users(void *buf_priv) > return atomic_read(&buf->refcount); > } > > +static void vb2_dc_prepare(void *buf_priv) > +{ > + struct vb2_dc_buf *buf = buf_priv; > + struct sg_table *sgt = buf->dma_sgt; > + > + if (!sgt) > + return; > + > + dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir); > +} > + > +static void vb2_dc_finish(void *buf_priv) > +{ > + struct vb2_dc_buf *buf = buf_priv; > + struct sg_table *sgt = buf->dma_sgt; > + > + if (!sgt) > + return; > + > + dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir); > +} > + > /*********************************************/ > /* callbacks for MMAP buffers */ > /*********************************************/ > @@ -369,6 +391,8 @@ const struct vb2_mem_ops vb2_dma_contig_memops = { > .mmap = vb2_dc_mmap, > .get_userptr = vb2_dc_get_userptr, > .put_userptr = vb2_dc_put_userptr, > + .prepare = vb2_dc_prepare, > + .finish = vb2_dc_finish, > .num_users = vb2_dc_num_users, > }; > EXPORT_SYMBOL_GPL(vb2_dma_contig_memops);
diff --git a/drivers/media/video/videobuf2-dma-contig.c b/drivers/media/video/videobuf2-dma-contig.c index 94f0874..f9286d7 100644 --- a/drivers/media/video/videobuf2-dma-contig.c +++ b/drivers/media/video/videobuf2-dma-contig.c @@ -103,6 +103,28 @@ static unsigned int vb2_dc_num_users(void *buf_priv) return atomic_read(&buf->refcount); } +static void vb2_dc_prepare(void *buf_priv) +{ + struct vb2_dc_buf *buf = buf_priv; + struct sg_table *sgt = buf->dma_sgt; + + if (!sgt) + return; + + dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir); +} + +static void vb2_dc_finish(void *buf_priv) +{ + struct vb2_dc_buf *buf = buf_priv; + struct sg_table *sgt = buf->dma_sgt; + + if (!sgt) + return; + + dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->nents, buf->dma_dir); +} + /*********************************************/ /* callbacks for MMAP buffers */ /*********************************************/ @@ -369,6 +391,8 @@ const struct vb2_mem_ops vb2_dma_contig_memops = { .mmap = vb2_dc_mmap, .get_userptr = vb2_dc_get_userptr, .put_userptr = vb2_dc_put_userptr, + .prepare = vb2_dc_prepare, + .finish = vb2_dc_finish, .num_users = vb2_dc_num_users, }; EXPORT_SYMBOL_GPL(vb2_dma_contig_memops);