linux-kernel - [PATCH v4 6/7] media: venus: helpers: update NUM

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Date:   Tue, 10 Aug 2021 15:17:54 +0530
From:   Dikshita Agarwal <dikshita@...eaurora.org>
To:     linux-media@...r.kernel.org, stanimir.varbanov@...aro.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        vgarodia@...eaurora.org, Dikshita Agarwal <dikshita@...eaurora.org>
Subject: [PATCH v4 6/7] media: venus: helpers: update NUM_MBS macro calculation

Consider alignment while calculating NUM_MBS.

Co-developed-by: Mansur Alisha Shaik <mansur@...eaurora.org>
Signed-off-by: Dikshita Agarwal <dikshita@...eaurora.org>
---
 drivers/media/platform/qcom/venus/helpers.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index 60a2775..2db33ba 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -18,8 +18,8 @@
 #include "hfi_platform.h"
 #include "hfi_parser.h"
 
-#define NUM_MBS_720P	(((1280 + 15) >> 4) * ((720 + 15) >> 4))
-#define NUM_MBS_4K	(((4096 + 15) >> 4) * ((2304 + 15) >> 4))
+#define NUM_MBS_720P	(((ALIGN(1280, 16)) >> 4) * ((ALIGN(736, 16)) >> 4))
+#define NUM_MBS_4K	(((ALIGN(4096, 16)) >> 4) * ((ALIGN(2304, 16)) >> 4))
 
 struct intbuf {
 	struct list_head list;
@@ -1098,16 +1098,17 @@ static u32 venus_helper_get_work_mode(struct venus_inst *inst)
 	u32 num_mbs;
 
 	mode = VIDC_WORK_MODE_2;
+
 	if (inst->session_type == VIDC_SESSION_TYPE_DEC) {
-		num_mbs = (ALIGN(inst->height, 16) * ALIGN(inst->width, 16)) / 256;
+		num_mbs = ((ALIGN(inst->height, 16))/16 * (ALIGN(inst->width, 16)))/16;
 		if (inst->hfi_codec == HFI_VIDEO_CODEC_MPEG2 ||
-		    inst->pic_struct != HFI_INTERLACE_FRAME_PROGRESSIVE ||
-		    num_mbs <= NUM_MBS_720P)
+			inst->pic_struct != HFI_INTERLACE_FRAME_PROGRESSIVE ||
+			num_mbs <= NUM_MBS_720P)
 			mode = VIDC_WORK_MODE_1;
 	} else {
 		num_mbs = (ALIGN(inst->out_height, 16) * ALIGN(inst->out_width, 16)) / 256;
 		if (inst->hfi_codec == HFI_VIDEO_CODEC_VP8 &&
-		    num_mbs <= NUM_MBS_4K)
+			num_mbs <= NUM_MBS_4K)
 			mode = VIDC_WORK_MODE_1;
 	}
 
-- 
2.7.4