diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2014-11-18 09:51:01 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-25 08:55:32 -0200 |
| commit | 0c3a14c177aa85afb991e7c2be3921aa9a52a893 (patch) | |
| tree | de833b66ee640393292bc404e16c8f43a49ae89c /drivers/media/platform | |
| parent | e5ae8fa739f8a1d5c292c5b13fa33ac64166e5a0 (diff) | |
| download | linux-next-0c3a14c177aa85afb991e7c2be3921aa9a52a893.tar.gz | |
[media] vb2-dma-sg: add allocation context to dma-sg
Require that dma-sg also uses an allocation context. This is in preparation
for adding prepare/finish memops to sync the memory between DMA and CPU.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform')
| -rw-r--r-- | drivers/media/platform/marvell-ccic/mcam-core.c | 13 | ||||
| -rw-r--r-- | drivers/media/platform/marvell-ccic/mcam-core.h | 1 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c index f0eeb6cd262c..c3ff5388aeb3 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.c +++ b/drivers/media/platform/marvell-ccic/mcam-core.c @@ -1079,6 +1079,8 @@ static int mcam_vb_queue_setup(struct vb2_queue *vq, *nbufs = minbufs; if (cam->buffer_mode == B_DMA_contig) alloc_ctxs[0] = cam->vb_alloc_ctx; + else if (cam->buffer_mode == B_DMA_sg) + alloc_ctxs[0] = cam->vb_alloc_ctx_sg; return 0; } @@ -1286,10 +1288,12 @@ static int mcam_setup_vb2(struct mcam_camera *cam) vq->ops = &mcam_vb2_ops; vq->mem_ops = &vb2_dma_contig_memops; vq->buf_struct_size = sizeof(struct mcam_vb_buffer); - cam->vb_alloc_ctx = vb2_dma_contig_init_ctx(cam->dev); vq->io_modes = VB2_MMAP | VB2_USERPTR; cam->dma_setup = mcam_ctlr_dma_contig; cam->frame_complete = mcam_dma_contig_done; + cam->vb_alloc_ctx = vb2_dma_contig_init_ctx(cam->dev); + if (IS_ERR(cam->vb_alloc_ctx)) + return PTR_ERR(cam->vb_alloc_ctx); #endif break; case B_DMA_sg: @@ -1300,6 +1304,9 @@ static int mcam_setup_vb2(struct mcam_camera *cam) vq->io_modes = VB2_MMAP | VB2_USERPTR; cam->dma_setup = mcam_ctlr_dma_sg; cam->frame_complete = mcam_dma_sg_done; + cam->vb_alloc_ctx_sg = vb2_dma_sg_init_ctx(cam->dev); + if (IS_ERR(cam->vb_alloc_ctx_sg)) + return PTR_ERR(cam->vb_alloc_ctx_sg); #endif break; case B_vmalloc: @@ -1325,6 +1332,10 @@ static void mcam_cleanup_vb2(struct mcam_camera *cam) if (cam->buffer_mode == B_DMA_contig) vb2_dma_contig_cleanup_ctx(cam->vb_alloc_ctx); #endif +#ifdef MCAM_MODE_DMA_SG + if (cam->buffer_mode == B_DMA_sg) + vb2_dma_sg_cleanup_ctx(cam->vb_alloc_ctx_sg); +#endif } diff --git a/drivers/media/platform/marvell-ccic/mcam-core.h b/drivers/media/platform/marvell-ccic/mcam-core.h index 60a8e1cfeff7..aa0c6eac254a 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.h +++ b/drivers/media/platform/marvell-ccic/mcam-core.h @@ -176,6 +176,7 @@ struct mcam_camera { /* DMA buffers - DMA modes */ struct mcam_vb_buffer *vb_bufs[MAX_DMA_BUFS]; struct vb2_alloc_ctx *vb_alloc_ctx; + struct vb2_alloc_ctx *vb_alloc_ctx_sg; /* Mode-specific ops, set at open time */ void (*dma_setup)(struct mcam_camera *cam); |