linux-kernel - [PATCH v2 for 5.4 3/4] media: hantro: Fix motion vectors usage condition

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Date:   Mon,  7 Oct 2019 14:45:04 -0300
From:   Ezequiel Garcia <ezequiel@...labora.com>
To:     linux-media@...r.kernel.org
Cc:     kernel@...labora.com,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Tomasz Figa <tfiga@...omium.org>,
        linux-rockchip@...ts.infradead.org,
        Heiko Stuebner <heiko@...ech.de>,
        Jonas Karlman <jonas@...boo.se>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Alexandre Courbot <acourbot@...omium.org>,
        fbuergisser@...omium.org, linux-kernel@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        Ezequiel Garcia <ezequiel@...labora.com>
Subject: [PATCH v2 for 5.4 3/4] media: hantro: Fix motion vectors usage condition

From: Francois Buergisser <fbuergisser@...omium.org>

The setting of the motion vectors usage and the setting of motion
vectors address are currently done under different conditions.

When decoding pre-recorded videos, this results of leaving the motion
vectors address unset, resulting in faulty memory accesses. Fix it
by using the same condition everywhere, which matches the profiles
that support motion vectors.

Fixes: dea0a82f3d22 ("media: hantro: Add support for H264 decoding on G1")
Signed-off-by: Francois Buergisser <fbuergisser@...omium.org>
Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
---
v2:
* New patch.

 drivers/staging/media/hantro/hantro_g1_h264_dec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
index 7ab534936843..c92460407613 100644
--- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
@@ -35,7 +35,7 @@ static void set_params(struct hantro_ctx *ctx)
 	if (sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)
 		reg |= G1_REG_DEC_CTRL0_SEQ_MBAFF_E;
 	reg |= G1_REG_DEC_CTRL0_PICORD_COUNT_E;
-	if (dec_param->nal_ref_idc)
+	if (sps->profile_idc > 66)
 		reg |= G1_REG_DEC_CTRL0_WRITE_MVS_E;
 
 	if (!(sps->flags & V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY) &&
-- 
2.22.0