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Wed, 07 Aug 2024 01:25:25 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 7 Aug 2024 16:24:53 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Wed, 7 Aug 2024 16:24:52 +0800 From: Yunfei Dong To: =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , Sebastian Fricke , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , Nathan Hebert , Daniel Almeida CC: Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , Steve Cho , "Yunfei Dong" , , , , , , Subject: [PATCH v4 6/7] media: mediatek: vcodec: replace v4l2_m2m_next_src_buf with v4l2_m2m_src_buf_remove Date: Wed, 7 Aug 2024 16:24:36 +0800 Message-ID: <20240807082444.21280-7-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240807082444.21280-1-yunfei.dong@mediatek.com> References: <20240807082444.21280-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--13.373600-8.000000 X-TMASE-MatchedRID: PiuGJd1Q1ubczN5mU8Y5FyEK7m5BT0HZrrEvQogcy/GSLiCOgnAfc3nv qbLkjGO6HjSnFV7/4glhesC82wLQK2iMXUkD7gZJA9lly13c/gHt/okBLaEo+MA0eOJZYj7thL9 xNXVrt1S5sKf/odud/i+HjmSH3Jw4f3KdOoA7IIjJ5W6OZe5hhbi8G4TZfQeVQmp51f2+39mpsO bNt5zEW3rBUTKHgHE1gDLqnrRlXrZ8nn9tnqel2DsAVzN+Ov/stnkn6oxtoi8wFokeveLNi+ELz BpD2lS1MxdjblUT1ptHp+a202IjAA== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--13.373600-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: F5AD6CE6DA69ECD8AB27FE9F09BD22586B5BA9C54A74B7914FD3D0BF337F574F2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240807_012531_501277_9EE80EC1 X-CRM114-Status: GOOD ( 13.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org There isn't lock to protect source buffer when get next src buffer, if the source buffer is removed for some unknown reason before lat work queue execute done, will lead to remove source buffer or buffer done error. Signed-off-by: Yunfei Dong --- .../vcodec/decoder/mtk_vcodec_dec_stateless.c | 30 +++++++++++++------ 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c index 8aa379872ddc..3dba3549000a 100644 --- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c +++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_stateless.c @@ -321,6 +321,7 @@ static void mtk_vdec_worker(struct work_struct *work) container_of(work, struct mtk_vcodec_dec_ctx, decode_work); struct mtk_vcodec_dec_dev *dev = ctx->dev; struct vb2_v4l2_buffer *vb2_v4l2_src = ctx->last_vb2_v4l2_src; + struct vb2_v4l2_buffer *vb2_v4l2_dst; struct vb2_buffer *vb2_src; struct mtk_vcodec_mem *bs_src; struct mtk_video_dec_buf *dec_buf_src; @@ -329,7 +330,7 @@ static void mtk_vdec_worker(struct work_struct *work) bool res_chg = false; int ret; - vb2_v4l2_src = vb2_v4l2_src ? vb2_v4l2_src : v4l2_m2m_next_src_buf(ctx->m2m_ctx); + vb2_v4l2_src = vb2_v4l2_src ? vb2_v4l2_src : v4l2_m2m_src_buf_remove(ctx->m2m_ctx); if (!vb2_v4l2_src) { v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx); mtk_v4l2_vdec_dbg(1, ctx, "[%d] no available source buffer", ctx->id); @@ -381,17 +382,28 @@ static void mtk_vdec_worker(struct work_struct *work) ctx->current_codec == V4L2_PIX_FMT_VP8_FRAME) { if (src_buf_req) v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl); - v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx, state); - } else { - if (ret != -EAGAIN) { - v4l2_m2m_src_buf_remove(ctx->m2m_ctx); - ctx->last_vb2_v4l2_src = NULL; - } else { - ctx->last_vb2_v4l2_src = vb2_v4l2_src; - } + vb2_v4l2_dst = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); + v4l2_m2m_buf_done(vb2_v4l2_dst, state); + v4l2_m2m_buf_done(vb2_v4l2_src, state); v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx); + return; } + + /* If each codec return -EAGAIN to decode again, need to backup current source + * buffer, then the driver will get this buffer next time. + * + * If each codec decode error, must to set buffer done with error status for + * this buffer have been removed from ready list. + */ + ctx->last_vb2_v4l2_src = (ret != -EAGAIN) ? NULL : vb2_v4l2_src; + if (ret && ret != -EAGAIN) { + if (src_buf_req) + v4l2_ctrl_request_complete(src_buf_req, &ctx->ctrl_hdl); + v4l2_m2m_buf_done(vb2_v4l2_src, state); + } + + v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx); } static void vb2ops_vdec_stateless_buf_queue(struct vb2_buffer *vb)