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SubjectRe: [DKIM] [PATCH v12, 13/17] media: mediatek: vcodec: Extract H264 common code
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Hi Yunfei,

On 5/12/22 04:19, Yunfei Dong wrote:
> Mt8192 can use some of common code with mt8183. Moves them to
> a new file in order to reuse.
>
> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> ---
> .../media/platform/mediatek/vcodec/Makefile | 1 +
> .../vcodec/vdec/vdec_h264_req_common.c | 310 +++++++++++++
> .../vcodec/vdec/vdec_h264_req_common.h | 274 +++++++++++
> .../mediatek/vcodec/vdec/vdec_h264_req_if.c | 427 ++----------------
> 4 files changed, 629 insertions(+), 383 deletions(-)
> create mode 100644 drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.c
> create mode 100644 drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.h
>
> diff --git a/drivers/media/platform/mediatek/vcodec/Makefile b/drivers/media/platform/mediatek/vcodec/Makefile
> index 359619653a0e..3f41d748eee5 100644
> --- a/drivers/media/platform/mediatek/vcodec/Makefile
> +++ b/drivers/media/platform/mediatek/vcodec/Makefile
> @@ -9,6 +9,7 @@ mtk-vcodec-dec-y := vdec/vdec_h264_if.o \
> vdec/vdec_vp8_if.o \
> vdec/vdec_vp9_if.o \
> vdec/vdec_h264_req_if.o \
> + vdec/vdec_h264_req_common.o \
> mtk_vcodec_dec_drv.o \
> vdec_drv_if.o \
> vdec_vpu_if.o \
> diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.c
> new file mode 100644
> index 000000000000..4e7c9d47751d
> --- /dev/null
> +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_common.c
> @@ -0,0 +1,310 @@

<snip>

Here there is still a cast to iomem:

> +void mtk_vdec_h264_copy_scaling_matrix(struct slice_api_h264_scaling_matrix *dst_matrix,
> + const struct v4l2_ctrl_h264_scaling_matrix *src_matrix)
> +{
> + memcpy_toio((void __iomem *)dst_matrix->scaling_list_4x4, src_matrix->scaling_list_4x4,
> + sizeof(dst_matrix->scaling_list_4x4));
> +
> + memcpy_toio((void __iomem *)dst_matrix->scaling_list_8x8, src_matrix->scaling_list_8x8,
> + sizeof(dst_matrix->scaling_list_8x8));
> +}

<snip>

> diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> index 27119aa31dd9..b055ceea481d 100644
> --- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
> +++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c

<snip>

> -static void
> -get_h264_scaling_matrix(struct slice_api_h264_scaling_matrix *dst_matrix,
> - const struct v4l2_ctrl_h264_scaling_matrix *src_matrix)
> -{
> - memcpy(dst_matrix->scaling_list_4x4, src_matrix->scaling_list_4x4,
> - sizeof(dst_matrix->scaling_list_4x4));
> -
> - memcpy(dst_matrix->scaling_list_8x8, src_matrix->scaling_list_8x8,
> - sizeof(dst_matrix->scaling_list_8x8));
> -}

but that function was moved (AFAICT) from vdec_h264_req_if.c where a regular memcpy was
used.

Did you miss one iomem case?

Can I change mtk_vdec_h264_copy_scaling_matrix() to:

void mtk_vdec_h264_copy_scaling_matrix(struct slice_api_h264_scaling_matrix *dst_matrix,
const struct v4l2_ctrl_h264_scaling_matrix *src_matrix)
{
memcpy(dst_matrix->scaling_list_4x4, src_matrix->scaling_list_4x4,
sizeof(dst_matrix->scaling_list_4x4));

memcpy(dst_matrix->scaling_list_8x8, src_matrix->scaling_list_8x8,
sizeof(dst_matrix->scaling_list_8x8));
}

If that's OK, then I'll do that manually, so no need to post a v13.

Everything else looks fine, so this is the only issue that needs to be resolved.

Regards,

Hans

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