On Thu, 2017-02-02 at 09:30 +0100, Andrzej Hajda wrote: 

Hi Smitha,

Ups, I have missed this patch, I hope it wont influence the review :)


On 18.01.2017 11:02, Smitha T Murthy wrote:

quoted

Aligning the luma_dpb_size, chroma_dpb_size, mv_size and me_buffer_size
for MFCv10.10.

Signed-off-by: Smitha T Murthy <redacted>
---
 drivers/media/platform/s5p-mfc/regs-mfc-v10.h   |   13 +++
 drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c |   97 ++++++++++++++++++-----
 drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.h |    2 +
 3 files changed, 91 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..153ee68 100644
--- a/drivers/media/platform/s5p-mfc/regs-mfc-v10.h
+++ b/drivers/media/platform/s5p-mfc/regs-mfc-v10.h

@@ -32,5 +32,18 @@
 #define MFC_VERSION_V10		0xA0
 #define MFC_NUM_PORTS_V10	1
 
+/* Encoder buffer size for MFC v10.0 */
+#define ENC_V100_H264_ME_SIZE(x, y)	\
+	(((x + 3) * (y + 3) * 8)	\
+	 + ((((x * y) + 63) / 64) * 32)	\
+	 + (((y * 64) + 1280) * (x + 7) / 8))
+#define ENC_V100_MPEG4_ME_SIZE(x, y)		\
+	(((x + 3) * (y + 3) * 8)		\
+	 + ((((x * y) + 127) / 128) * 16)	\
+	 + (((y * 64) + 1280) * (x + 7) / 8))
+#define ENC_V100_VP8_ME_SIZE(x, y)	\
+	(((x + 3) * (y + 3) * 8)	\
+	 + (((y * 64) + 1280) * (x + 7) / 8))
+

Crazy, cryptic math here, I guess you can make it more readable by using
DIV_ROUND_UP macro and abstracting out common parts, for example:

#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)
 

I put the equation as I had found in the User Manual, so that it will
help in quick reference check in future. But I will change it as per
your suggestion.

quoted

 #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 faceee6..369210a 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c

@@ -64,6 +64,7 @@ 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 +75,9 @@ 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 +85,36 @@ 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((((mb_width * 16) + 63) / 64)
+						* 64 * (((mb_height * 16) + 31)
+						/ 32) * 32 + 64, 64);
+				ctx->chroma_dpb_size =
+					ALIGN((((mb_width * 16) + 63) / 64)
+							* 64 * (mb_height * 8)
+							+ 64, 64);
+			} else {
+				ctx->luma_dpb_size =
+					ALIGN((((lcu_width * 32) + 63) / 64)
+						* 64 * (((lcu_height * 32) + 31)
+						/ 32) * 32 + 64, 64);
+				ctx->chroma_dpb_size =
+					ALIGN((((lcu_width * 32) + 63) / 64)
+							* 64 * (lcu_height * 16)
+							+ 64, 64);

Again crazy math, please try to avoid repetitive calculations, replace
all constructs of form (x + n - 1) / n, with DIV_ROUND_UP(x, n), verify
if ALIGN is necessary.

I will add the DIV_ROUND_UP. Since ALIGN was there for other versions
too, I followed the same. 

quoted

+			}
+		} 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 +223,8 @@ 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);

This and similar entries below should be in previous patch, again check
if ALIGN is needed.

I will take these changes in the previous patch in the next version.

quoted

 		} else if (IS_MFCV8_PLUS(dev))
 			ctx->scratch_buf_size =
 				S5P_FIMV_SCRATCH_BUF_SIZE_H264_ENC_V8(

@@ -219,6 +247,9 @@ 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 +266,10 @@ 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 +429,15 @@ 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);
+		}
 	} else {
 		ctx->mv_size = 0;
 	}

@@ -607,15 +643,34 @@ 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 fcc2368..2b5a9f4 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)          ((x_size + 31) / 32)
+#define enc_lcu_height(y_size)         ((y_size + 31) / 32)

DIV_ROUND_UP


Regards
Andrzej

Yes I will correct it.

Thank you for the review.
Regards,
Smitha 

quoted

 
 /* Definition */
 #define ENC_MULTI_SLICE_MB_MAX		((1 << 30) - 1)