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path: root/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
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Diffstat (limited to 'drivers/staging/media/sunxi/cedrus/cedrus_h264.c')
-rw-r--r--drivers/staging/media/sunxi/cedrus/cedrus_h264.c113
1 files changed, 64 insertions, 49 deletions
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
index de7442d4834d..b4173a8926d6 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c
@@ -520,6 +520,11 @@ static int cedrus_h264_start(struct cedrus_ctx *ctx)
unsigned int mv_col_size;
int ret;
+ /*
+ * NOTE: All buffers allocated here are only used by HW, so we
+ * can add DMA_ATTR_NO_KERNEL_MAPPING flag when allocating them.
+ */
+
/* Formula for picture buffer size is taken from CedarX source. */
if (ctx->src_fmt.width > 2048)
@@ -538,23 +543,23 @@ static int cedrus_h264_start(struct cedrus_ctx *ctx)
ctx->codec.h264.pic_info_buf_size = pic_info_size;
ctx->codec.h264.pic_info_buf =
- dma_alloc_coherent(dev->dev, ctx->codec.h264.pic_info_buf_size,
- &ctx->codec.h264.pic_info_buf_dma,
- GFP_KERNEL);
+ dma_alloc_attrs(dev->dev, ctx->codec.h264.pic_info_buf_size,
+ &ctx->codec.h264.pic_info_buf_dma,
+ GFP_KERNEL, DMA_ATTR_NO_KERNEL_MAPPING);
if (!ctx->codec.h264.pic_info_buf)
return -ENOMEM;
/*
* That buffer is supposed to be 16kiB in size, and be aligned
- * on 16kiB as well. However, dma_alloc_coherent provides the
- * guarantee that we'll have a CPU and DMA address aligned on
- * the smallest page order that is greater to the requested
- * size, so we don't have to overallocate.
+ * on 16kiB as well. However, dma_alloc_attrs provides the
+ * guarantee that we'll have a DMA address aligned on the
+ * smallest page order that is greater to the requested size,
+ * so we don't have to overallocate.
*/
ctx->codec.h264.neighbor_info_buf =
- dma_alloc_coherent(dev->dev, CEDRUS_NEIGHBOR_INFO_BUF_SIZE,
- &ctx->codec.h264.neighbor_info_buf_dma,
- GFP_KERNEL);
+ dma_alloc_attrs(dev->dev, CEDRUS_NEIGHBOR_INFO_BUF_SIZE,
+ &ctx->codec.h264.neighbor_info_buf_dma,
+ GFP_KERNEL, DMA_ATTR_NO_KERNEL_MAPPING);
if (!ctx->codec.h264.neighbor_info_buf) {
ret = -ENOMEM;
goto err_pic_buf;
@@ -582,10 +587,11 @@ static int cedrus_h264_start(struct cedrus_ctx *ctx)
mv_col_size = field_size * 2 * CEDRUS_H264_FRAME_NUM;
ctx->codec.h264.mv_col_buf_size = mv_col_size;
- ctx->codec.h264.mv_col_buf = dma_alloc_coherent(dev->dev,
- ctx->codec.h264.mv_col_buf_size,
- &ctx->codec.h264.mv_col_buf_dma,
- GFP_KERNEL);
+ ctx->codec.h264.mv_col_buf =
+ dma_alloc_attrs(dev->dev,
+ ctx->codec.h264.mv_col_buf_size,
+ &ctx->codec.h264.mv_col_buf_dma,
+ GFP_KERNEL, DMA_ATTR_NO_KERNEL_MAPPING);
if (!ctx->codec.h264.mv_col_buf) {
ret = -ENOMEM;
goto err_neighbor_buf;
@@ -600,10 +606,10 @@ static int cedrus_h264_start(struct cedrus_ctx *ctx)
ctx->codec.h264.deblk_buf_size =
ALIGN(ctx->src_fmt.width, 32) * 12;
ctx->codec.h264.deblk_buf =
- dma_alloc_coherent(dev->dev,
- ctx->codec.h264.deblk_buf_size,
- &ctx->codec.h264.deblk_buf_dma,
- GFP_KERNEL);
+ dma_alloc_attrs(dev->dev,
+ ctx->codec.h264.deblk_buf_size,
+ &ctx->codec.h264.deblk_buf_dma,
+ GFP_KERNEL, DMA_ATTR_NO_KERNEL_MAPPING);
if (!ctx->codec.h264.deblk_buf) {
ret = -ENOMEM;
goto err_mv_col_buf;
@@ -616,10 +622,10 @@ static int cedrus_h264_start(struct cedrus_ctx *ctx)
ctx->codec.h264.intra_pred_buf_size =
ALIGN(ctx->src_fmt.width, 64) * 5 * 2;
ctx->codec.h264.intra_pred_buf =
- dma_alloc_coherent(dev->dev,
- ctx->codec.h264.intra_pred_buf_size,
- &ctx->codec.h264.intra_pred_buf_dma,
- GFP_KERNEL);
+ dma_alloc_attrs(dev->dev,
+ ctx->codec.h264.intra_pred_buf_size,
+ &ctx->codec.h264.intra_pred_buf_dma,
+ GFP_KERNEL, DMA_ATTR_NO_KERNEL_MAPPING);
if (!ctx->codec.h264.intra_pred_buf) {
ret = -ENOMEM;
goto err_deblk_buf;
@@ -629,24 +635,28 @@ static int cedrus_h264_start(struct cedrus_ctx *ctx)
return 0;
err_deblk_buf:
- dma_free_coherent(dev->dev, ctx->codec.h264.deblk_buf_size,
- ctx->codec.h264.deblk_buf,
- ctx->codec.h264.deblk_buf_dma);
+ dma_free_attrs(dev->dev, ctx->codec.h264.deblk_buf_size,
+ ctx->codec.h264.deblk_buf,
+ ctx->codec.h264.deblk_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
err_mv_col_buf:
- dma_free_coherent(dev->dev, ctx->codec.h264.mv_col_buf_size,
- ctx->codec.h264.mv_col_buf,
- ctx->codec.h264.mv_col_buf_dma);
+ dma_free_attrs(dev->dev, ctx->codec.h264.mv_col_buf_size,
+ ctx->codec.h264.mv_col_buf,
+ ctx->codec.h264.mv_col_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
err_neighbor_buf:
- dma_free_coherent(dev->dev, CEDRUS_NEIGHBOR_INFO_BUF_SIZE,
- ctx->codec.h264.neighbor_info_buf,
- ctx->codec.h264.neighbor_info_buf_dma);
+ dma_free_attrs(dev->dev, CEDRUS_NEIGHBOR_INFO_BUF_SIZE,
+ ctx->codec.h264.neighbor_info_buf,
+ ctx->codec.h264.neighbor_info_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
err_pic_buf:
- dma_free_coherent(dev->dev, ctx->codec.h264.pic_info_buf_size,
- ctx->codec.h264.pic_info_buf,
- ctx->codec.h264.pic_info_buf_dma);
+ dma_free_attrs(dev->dev, ctx->codec.h264.pic_info_buf_size,
+ ctx->codec.h264.pic_info_buf,
+ ctx->codec.h264.pic_info_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
return ret;
}
@@ -654,23 +664,28 @@ static void cedrus_h264_stop(struct cedrus_ctx *ctx)
{
struct cedrus_dev *dev = ctx->dev;
- dma_free_coherent(dev->dev, ctx->codec.h264.mv_col_buf_size,
- ctx->codec.h264.mv_col_buf,
- ctx->codec.h264.mv_col_buf_dma);
- dma_free_coherent(dev->dev, CEDRUS_NEIGHBOR_INFO_BUF_SIZE,
- ctx->codec.h264.neighbor_info_buf,
- ctx->codec.h264.neighbor_info_buf_dma);
- dma_free_coherent(dev->dev, ctx->codec.h264.pic_info_buf_size,
- ctx->codec.h264.pic_info_buf,
- ctx->codec.h264.pic_info_buf_dma);
+ dma_free_attrs(dev->dev, ctx->codec.h264.mv_col_buf_size,
+ ctx->codec.h264.mv_col_buf,
+ ctx->codec.h264.mv_col_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
+ dma_free_attrs(dev->dev, CEDRUS_NEIGHBOR_INFO_BUF_SIZE,
+ ctx->codec.h264.neighbor_info_buf,
+ ctx->codec.h264.neighbor_info_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
+ dma_free_attrs(dev->dev, ctx->codec.h264.pic_info_buf_size,
+ ctx->codec.h264.pic_info_buf,
+ ctx->codec.h264.pic_info_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
if (ctx->codec.h264.deblk_buf_size)
- dma_free_coherent(dev->dev, ctx->codec.h264.deblk_buf_size,
- ctx->codec.h264.deblk_buf,
- ctx->codec.h264.deblk_buf_dma);
+ dma_free_attrs(dev->dev, ctx->codec.h264.deblk_buf_size,
+ ctx->codec.h264.deblk_buf,
+ ctx->codec.h264.deblk_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
if (ctx->codec.h264.intra_pred_buf_size)
- dma_free_coherent(dev->dev, ctx->codec.h264.intra_pred_buf_size,
- ctx->codec.h264.intra_pred_buf,
- ctx->codec.h264.intra_pred_buf_dma);
+ dma_free_attrs(dev->dev, ctx->codec.h264.intra_pred_buf_size,
+ ctx->codec.h264.intra_pred_buf,
+ ctx->codec.h264.intra_pred_buf_dma,
+ DMA_ATTR_NO_KERNEL_MAPPING);
}
static void cedrus_h264_trigger(struct cedrus_ctx *ctx)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.