linux-kernel - [V5,4/8] media: mtk-jpegdec: add jpegdec timeout func interface

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 16 Jul 2022 17:34:04 +0800
From:   Irui Wang <irui.wang@...iatek.com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tzung-Bi Shih <tzungbi@...omium.org>,
        <angelogioacchino.delregno@...labora.com>,
        <nicolas.dufresne@...labora.com>, <wenst@...omium.org>,
        kyrie wu <kyrie.wu@...iatek.com>
CC:     <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        <linux-media@...r.kernel.org>, <devicetree@...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>, <srv_heupstream@...iatek.com>,
        irui wang <irui.wang@...iatek.com>
Subject: [V5,4/8] media: mtk-jpegdec: add jpegdec timeout func interface

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

Generalizes jpegdec timeout func interfaces to handle HW timeout.

Signed-off-by: kyrie wu <kyrie.wu@...iatek.com>
Signed-off-by: irui wang <irui.wang@...iatek.com>

---
 .../platform/mediatek/jpeg/mtk_jpeg_core.h    |  2 ++
 .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c  | 24 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
index e2e670e58b82..ddfe2b4c48b3 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
@@ -169,6 +169,8 @@ struct mtk_jpegdec_comp_dev {
 	struct mtk_jpeg_dev *master_dev;
 	struct mtk_jpegdec_clk jdec_clk;
 	int jpegdec_irq;
+	struct delayed_work job_timeout_work;
+	struct mtk_jpeg_hw_param hw_param;
 };
 
 /**
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index 232e81165dd3..f3e885784afd 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -440,6 +440,25 @@ void mtk_jpeg_dec_set_config(void __iomem *base,
 }
 EXPORT_SYMBOL_GPL(mtk_jpeg_dec_set_config);
 
+static void mtk_jpegdec_timeout_work(struct work_struct *work)
+{
+	enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+	struct mtk_jpegdec_comp_dev *cjpeg =
+		container_of(work, struct mtk_jpegdec_comp_dev,
+			     job_timeout_work.work);
+	struct vb2_v4l2_buffer *src_buf, *dst_buf;
+
+	src_buf = cjpeg->hw_param.src_buffer;
+	dst_buf = cjpeg->hw_param.dst_buffer;
+	v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true);
+
+	mtk_jpeg_dec_reset(cjpeg->reg_base);
+	clk_disable_unprepare(cjpeg->jdec_clk.clks->clk);
+	pm_runtime_put(cjpeg->dev);
+	v4l2_m2m_buf_done(src_buf, buf_state);
+	v4l2_m2m_buf_done(dst_buf, buf_state);
+}
+
 static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
 {
 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
@@ -453,6 +472,8 @@ static irqreturn_t mtk_jpegdec_hw_irq_handler(int irq, void *priv)
 	struct mtk_jpegdec_comp_dev *jpeg = priv;
 	struct mtk_jpeg_dev *master_jpeg = jpeg->master_dev;
 
+	cancel_delayed_work(&jpeg->job_timeout_work);
+
 	irq_status = mtk_jpeg_dec_get_int_status(jpeg->reg_base);
 	dec_irq_ret = mtk_jpeg_dec_enum_result(irq_status);
 	if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW)
@@ -540,6 +561,9 @@ static int mtk_jpegdec_hw_probe(struct platform_device *pdev)
 			master_dev->dec_hw_dev[i] = NULL;
 	}
 
+	INIT_DELAYED_WORK(&dev->job_timeout_work,
+			  mtk_jpegdec_timeout_work);
+
 	jpegdec_clk = &dev->jdec_clk;
 
 	jpegdec_clk->clk_num = devm_clk_bulk_get_all(&pdev->dev,
-- 
2.18.0