Re: [Patch v2 04/11] s5p-mfc: Support MFCv10.10 buffer requirements

Andrzej Hajda
2017-03-06T14:48:41Z

On 03.03.2017 10:07, Smitha T Murthy wrote:
> Aligning the luma_dpb_size, chroma_dpb_size, mv_size and me_buffer_size
> for MFCv10.10.
>
> Signed-off-by: Smitha T Murthy <smitha.t@samsung.com>
> ---
> drivers/media/platform/s5p-mfc/regs-mfc-v10.h | 19 +++++
> drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c | 99 ++++++++++++++++++-----
> drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.h | 2 +
> 3 files changed, 99 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/media/platform/s5p-mfc/regs-mfc-v10.h b/drivers/media/platform/s5p-mfc/regs-mfc-v10.h
> index bd671a5..dafcf9d 100644
> --- a/drivers/media/platform/s5p-mfc/regs-mfc-v10.h
> +++ b/drivers/media/platform/s5p-mfc/regs-mfc-v10.h
> @@ -32,5 +32,24 @@
> #define MFC_VERSION_V10 0xA0
> #define MFC_NUM_PORTS_V10 1
>
> +/* MFCv10 codec defines*/
> +#define S5P_FIMV_CODEC_HEVC_ENC 26
> +
> +/* Encoder buffer size for MFC v10.0 */
> +#define ENC_V100_BASE_SIZE(x, y) \
> + (((x + 3) * (y + 3) * 8) \
> + + ((y * 64) + 1280) * DIV_ROUND_UP(x, 8))
> +
> +#define ENC_V100_H264_ME_SIZE(x, y) \
> + (ENC_V100_BASE_SIZE(x, y) \
> + + (DIV_ROUND_UP(x * y, 64) * 32))
> +
> +#define ENC_V100_MPEG4_ME_SIZE(x, y) \
> + (ENC_V100_BASE_SIZE(x, y) \
> + + (DIV_ROUND_UP(x * y, 128) * 16))
> +
> +#define ENC_V100_VP8_ME_SIZE(x, y) \
> + ENC_V100_BASE_SIZE(x, y)
> +
> #endif /*_REGS_MFC_V10_H*/
>
> diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c
> index 5f0da0b..d4c75eb 100644
> --- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c
> +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c
> @@ -45,6 +45,8 @@
>
> #define IS_MFCV6_V2(dev) (!IS_MFCV7_PLUS(dev) && dev->fw_ver == MFC_FW_V2)
>
> +#define calc_param(value, align) (DIV_ROUND_UP(value, align) * align)

I think it is functionally the same as ALIGN, please drop it and use
ALIGN instead.

> +
> /* Allocate temporary buffers for decoding */
> static int s5p_mfc_alloc_dec_temp_buffers_v6(struct s5p_mfc_ctx *ctx)
> {
> @@ -64,6 +66,7 @@ static int s5p_mfc_alloc_codec_buffers_v6(struct s5p_mfc_ctx *ctx)
> {
> struct s5p_mfc_dev *dev = ctx->dev;
> unsigned int mb_width, mb_height;
> + unsigned int lcu_width = 0, lcu_height = 0;
> int ret;
>
> mb_width = MB_WIDTH(ctx->img_width);
> @@ -74,7 +77,9 @@ static int s5p_mfc_alloc_codec_buffers_v6(struct s5p_mfc_ctx *ctx)
> ctx->luma_size, ctx->chroma_size, ctx->mv_size);
> mfc_debug(2, "Totals bufs: %d\n", ctx->total_dpb_count);
> } else if (ctx->type == MFCINST_ENCODER) {
> - if (IS_MFCV8_PLUS(dev))
> + if (IS_MFCV10(dev)) {
> + ctx->tmv_buffer_size = 0;
> + } else if (IS_MFCV8_PLUS(dev))
> ctx->tmv_buffer_size = S5P_FIMV_NUM_TMV_BUFFERS_V6 *
> ALIGN(S5P_FIMV_TMV_BUFFER_SIZE_V8(mb_width, mb_height),
> S5P_FIMV_TMV_BUFFER_ALIGN_V6);
> @@ -82,13 +87,36 @@ static int s5p_mfc_alloc_codec_buffers_v6(struct s5p_mfc_ctx *ctx)
> ctx->tmv_buffer_size = S5P_FIMV_NUM_TMV_BUFFERS_V6 *
> ALIGN(S5P_FIMV_TMV_BUFFER_SIZE_V6(mb_width, mb_height),
> S5P_FIMV_TMV_BUFFER_ALIGN_V6);
> -
> - ctx->luma_dpb_size = ALIGN((mb_width * mb_height) *
> - S5P_FIMV_LUMA_MB_TO_PIXEL_V6,
> - S5P_FIMV_LUMA_DPB_BUFFER_ALIGN_V6);
> - ctx->chroma_dpb_size = ALIGN((mb_width * mb_height) *
> - S5P_FIMV_CHROMA_MB_TO_PIXEL_V6,
> - S5P_FIMV_CHROMA_DPB_BUFFER_ALIGN_V6);
> + if (IS_MFCV10(dev)) {
> + lcu_width = enc_lcu_width(ctx->img_width);
> + lcu_height = enc_lcu_height(ctx->img_height);
> + if (ctx->codec_mode != S5P_FIMV_CODEC_HEVC_ENC) {
> + ctx->luma_dpb_size =
> + ALIGN(calc_param((mb_width * 16), 64)
> + * calc_param((mb_height * 16), 32)
> + + 64, 64);
ALIGN is not necessary here, as argument is already aligned.
> + ctx->chroma_dpb_size =
> + ALIGN(calc_param((mb_width * 16), 64)
> + * (mb_height * 8)
> + + 64, 64);

ditto

> + } else {
> + ctx->luma_dpb_size =
> + ALIGN(calc_param((lcu_width * 32), 64)
> + * calc_param((lcu_height * 32), 32)
> + + 64, 64);
ditto
> + ctx->chroma_dpb_size =
> + ALIGN(calc_param((lcu_width * 32), 64)
> + * (lcu_height * 16)
> + + 64, 64);

ditto

> + }
> + } else {
> + ctx->luma_dpb_size = ALIGN((mb_width * mb_height) *
> + S5P_FIMV_LUMA_MB_TO_PIXEL_V6,
> + S5P_FIMV_LUMA_DPB_BUFFER_ALIGN_V6);
> + ctx->chroma_dpb_size = ALIGN((mb_width * mb_height) *
> + S5P_FIMV_CHROMA_MB_TO_PIXEL_V6,
> + S5P_FIMV_CHROMA_DPB_BUFFER_ALIGN_V6);
> + }
> if (IS_MFCV8_PLUS(dev))
> ctx->me_buffer_size = ALIGN(S5P_FIMV_ME_BUFFER_SIZE_V8(
> ctx->img_width, ctx->img_height,
> @@ -197,6 +225,8 @@ static int s5p_mfc_alloc_codec_buffers_v6(struct s5p_mfc_ctx *ctx)
> case S5P_MFC_CODEC_H264_ENC:
> if (IS_MFCV10(dev)) {
> mfc_debug(2, "Use min scratch buffer size\n");
> + ctx->me_buffer_size =
> + ALIGN(ENC_V100_H264_ME_SIZE(mb_width, mb_height), 16);
> } else if (IS_MFCV8_PLUS(dev))
> ctx->scratch_buf_size =
> S5P_FIMV_SCRATCH_BUF_SIZE_H264_ENC_V8(
> @@ -219,6 +249,9 @@ static int s5p_mfc_alloc_codec_buffers_v6(struct s5p_mfc_ctx *ctx)
> case S5P_MFC_CODEC_H263_ENC:
> if (IS_MFCV10(dev)) {
> mfc_debug(2, "Use min scratch buffer size\n");
> + ctx->me_buffer_size =
> + ALIGN(ENC_V100_MPEG4_ME_SIZE(mb_width,
> + mb_height), 16);
> } else
> ctx->scratch_buf_size =
> S5P_FIMV_SCRATCH_BUF_SIZE_MPEG4_ENC_V6(
> @@ -235,7 +268,10 @@ static int s5p_mfc_alloc_codec_buffers_v6(struct s5p_mfc_ctx *ctx)
> case S5P_MFC_CODEC_VP8_ENC:
> if (IS_MFCV10(dev)) {
> mfc_debug(2, "Use min scratch buffer size\n");
> - } else if (IS_MFCV8_PLUS(dev))
> + ctx->me_buffer_size =
> + ALIGN(ENC_V100_VP8_ME_SIZE(mb_width, mb_height),
> + 16);
> + } else if (IS_MFCV8_PLUS(dev))
> ctx->scratch_buf_size =
> S5P_FIMV_SCRATCH_BUF_SIZE_VP8_ENC_V8(
> mb_width,
> @@ -395,13 +431,15 @@ static void s5p_mfc_dec_calc_dpb_size_v6(struct s5p_mfc_ctx *ctx)
>
> if (ctx->codec_mode == S5P_MFC_CODEC_H264_DEC ||
> ctx->codec_mode == S5P_MFC_CODEC_H264_MVC_DEC) {
> - if (IS_MFCV10(dev))
> + if (IS_MFCV10(dev)) {
> ctx->mv_size = S5P_MFC_DEC_MV_SIZE_V10(ctx->img_width,
> ctx->img_height);
> - else
> + ctx->mv_size = ALIGN(ctx->mv_size, 32);
> + } else {
> ctx->mv_size = S5P_MFC_DEC_MV_SIZE_V6(ctx->img_width,
> ctx->img_height);
> - ctx->mv_size = ALIGN(ctx->mv_size, 16);
> + ctx->mv_size = ALIGN(ctx->mv_size, 16);

Already aligned

> + }
> } else {
> ctx->mv_size = 0;
> }
> @@ -598,15 +636,34 @@ static int s5p_mfc_set_enc_ref_buffer_v6(struct s5p_mfc_ctx *ctx)
>
> mfc_debug(2, "Buf1: %p (%d)\n", (void *)buf_addr1, buf_size1);
>
> - for (i = 0; i < ctx->pb_count; i++) {
> - writel(buf_addr1, mfc_regs->e_luma_dpb + (4 * i));
> - buf_addr1 += ctx->luma_dpb_size;
> - writel(buf_addr1, mfc_regs->e_chroma_dpb + (4 * i));
> - buf_addr1 += ctx->chroma_dpb_size;
> - writel(buf_addr1, mfc_regs->e_me_buffer + (4 * i));
> - buf_addr1 += ctx->me_buffer_size;
> - buf_size1 -= (ctx->luma_dpb_size + ctx->chroma_dpb_size +
> - ctx->me_buffer_size);
> + if (IS_MFCV10(dev)) {
> + /* start address of per buffer is aligned */
> + for (i = 0; i < ctx->pb_count; i++) {
> + writel(buf_addr1, mfc_regs->e_luma_dpb + (4 * i));
> + buf_addr1 += ctx->luma_dpb_size;
> + buf_size1 -= ctx->luma_dpb_size;
> + }
> + for (i = 0; i < ctx->pb_count; i++) {
> + writel(buf_addr1, mfc_regs->e_chroma_dpb + (4 * i));
> + buf_addr1 += ctx->chroma_dpb_size;
> + buf_size1 -= ctx->chroma_dpb_size;
> + }
> + for (i = 0; i < ctx->pb_count; i++) {
> + writel(buf_addr1, mfc_regs->e_me_buffer + (4 * i));
> + buf_addr1 += ctx->me_buffer_size;
> + buf_size1 -= ctx->me_buffer_size;
> + }
> + } else {
> + for (i = 0; i < ctx->pb_count; i++) {
> + writel(buf_addr1, mfc_regs->e_luma_dpb + (4 * i));
> + buf_addr1 += ctx->luma_dpb_size;
> + writel(buf_addr1, mfc_regs->e_chroma_dpb + (4 * i));
> + buf_addr1 += ctx->chroma_dpb_size;
> + writel(buf_addr1, mfc_regs->e_me_buffer + (4 * i));
> + buf_addr1 += ctx->me_buffer_size;
> + buf_size1 -= (ctx->luma_dpb_size + ctx->chroma_dpb_size
> + + ctx->me_buffer_size);
> + }
> }
>
> writel(buf_addr1, mfc_regs->e_scratch_buffer_addr);
> diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.h b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.h
> index 021b8db..975bbc5 100644
> --- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.h
> +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.h
> @@ -26,6 +26,8 @@
> (((MB_HEIGHT(y)+1)/2)*2) * 64 + 128)
> #define S5P_MFC_DEC_MV_SIZE_V10(x, y) (MB_WIDTH(x) * \
> (((MB_HEIGHT(y)+1)/2)*2) * 64 + 512)
> +#define enc_lcu_width(x_size) DIV_ROUND_UP(x_size, 32)
> +#define enc_lcu_height(y_size) DIV_ROUND_UP(y_size, 32)
>
> /* Definition */
> #define ENC_MULTI_SLICE_MB_MAX ((1 << 30) - 1)