linux-kernel - [V1,3/7] media: mtk-jpeg: Fixes jpeg enc&dec worker sw flow

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Date:   Thu, 23 Feb 2023 16:13:08 +0800
From:   Irui Wang <irui.wang@...iatek.com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <angelogioacchino.delregno@...labora.com>,
        <nicolas.dufresne@...labora.com>, kyrie wu <kyrie.wu@...iatek.com>
CC:     <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        <linux-media@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Tomasz Figa <tfiga@...omium.org>, <xia.jiang@...iatek.com>,
        <maoguang.meng@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Irui Wang <irui.wang@...iatek.com>
Subject: [V1,3/7] media: mtk-jpeg: Fixes jpeg enc&dec worker sw flow

From: kyrie wu <kyrie.wu@...iatek.com>

1. Move removing buffer after sw setting and before hw setting
in enc&dec worker to prevents the operation of removing
the buffer twice if the sw setting fails.
2. Remove the redundant operation of queue work in the
jpegenc irq handler because the jpegenc worker has called
v4l2_m2m_job_finish to do it.

Fixes: 5fb1c2361e56 ("mtk-jpegenc: add jpeg encode worker interface")
Fixes: dedc21500334 ("media: mtk-jpegdec: add jpeg decode worker interface")

Signed-off-by: kyrie wu <kyrie.wu@...iatek.com>
Signed-off-by: irui wang <irui.wang@...iatek.com>
---
 .../media/platform/mediatek/jpeg/mtk_jpeg_core.c   | 14 +++++++-------
 .../media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c |  4 ----
 2 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index daa4a6448311..d940dc5ede74 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -1025,9 +1025,6 @@ static void mtk_jpegenc_worker(struct work_struct *work)
 	if (!dst_buf)
 		goto getbuf_fail;
 
-	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
-	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
-
 	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
 
 	mtk_jpegenc_set_hw_param(ctx, hw_id, src_buf, dst_buf);
@@ -1045,6 +1042,9 @@ static void mtk_jpegenc_worker(struct work_struct *work)
 		goto enc_end;
 	}
 
+	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
 	schedule_delayed_work(&comp_jpeg[hw_id]->job_timeout_work,
 			      msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
 
@@ -1220,9 +1220,6 @@ static void mtk_jpegdec_worker(struct work_struct *work)
 	if (!dst_buf)
 		goto getbuf_fail;
 
-	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
-	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
-
 	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
 	jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
 	jpeg_dst_buf = mtk_jpeg_vb2_to_srcbuf(&dst_buf->vb2_buf);
@@ -1231,7 +1228,7 @@ static void mtk_jpegdec_worker(struct work_struct *work)
 					     &jpeg_src_buf->dec_param)) {
 		mtk_jpeg_queue_src_chg_event(ctx);
 		ctx->state = MTK_JPEG_SOURCE_CHANGE;
-		goto dec_end;
+		goto getbuf_fail;
 	}
 
 	jpeg_src_buf->curr_ctx = ctx;
@@ -1254,6 +1251,9 @@ static void mtk_jpegdec_worker(struct work_struct *work)
 		goto clk_end;
 	}
 
+	v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+	v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
 	schedule_delayed_work(&comp_jpeg[hw_id]->job_timeout_work,
 			      msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
 
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
index 1bbb712d78d0..867f4c1a09fa 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
@@ -286,10 +286,6 @@ static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
 	mtk_jpegenc_put_buf(jpeg);
 	pm_runtime_put(ctx->jpeg->dev);
 	clk_disable_unprepare(jpeg->venc_clk.clks->clk);
-	if (!list_empty(&ctx->fh.m2m_ctx->out_q_ctx.rdy_queue) ||
-	    !list_empty(&ctx->fh.m2m_ctx->cap_q_ctx.rdy_queue)) {
-		queue_work(master_jpeg->workqueue, &ctx->jpeg_work);
-	}
 
 	jpeg->hw_state = MTK_JPEG_HW_IDLE;
 	wake_up(&master_jpeg->enc_hw_wq);
-- 
2.18.0