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From: Christian Hewitt <christianshewitt@gmail.com>
To: Neil Armstrong <neil.armstrong@linaro.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	linux-media@vger.kernel.org, linux-amlogic@lists.infradead.org,
	linux-staging@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: Christian Hewitt <christianshewitt@gmail.com>,
	Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH] media: meson: vdec: esparser: check parsing state with hardware write pointer
Date: Mon, 23 Jan 2023 09:43:00 +0000	[thread overview]
Message-ID: <20230123094300.2816812-1-christianshewitt@gmail.com> (raw)

From: Neil Armstrong <narmstrong@baylibre.com>

Also check the hardware write pointer to check if ES Parser has stalled.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 drivers/staging/media/meson/vdec/esparser.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/meson/vdec/esparser.c b/drivers/staging/media/meson/vdec/esparser.c
index df5956c6141d..41b705f999b2 100644
--- a/drivers/staging/media/meson/vdec/esparser.c
+++ b/drivers/staging/media/meson/vdec/esparser.c
@@ -300,6 +300,7 @@ esparser_queue(struct amvdec_session *sess, struct vb2_v4l2_buffer *vbuf)
 	u32 num_dst_bufs = 0;
 	u32 offset;
 	u32 pad_size;
+	u32 wp, wp2;
 
 	/*
 	 * When max ref frame is held by VP9, this should be -= 3 to prevent a
@@ -354,15 +355,21 @@ esparser_queue(struct amvdec_session *sess, struct vb2_v4l2_buffer *vbuf)
 	}
 
 	pad_size = esparser_pad_start_code(core, vb, payload_size);
+	wp = amvdec_read_parser(core, PARSER_VIDEO_WP);
 	ret = esparser_write_data(core, phy, payload_size + pad_size);
+	wp2 = amvdec_read_parser(core, PARSER_VIDEO_WP);
 
 	if (ret <= 0) {
-		dev_warn(core->dev, "esparser: input parsing error\n");
-		amvdec_remove_ts(sess, vb->timestamp);
-		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
 		amvdec_write_parser(core, PARSER_FETCH_CMD, 0);
 
-		return 0;
+		if (ret < 0 || wp2 == wp) {
+			dev_err(core->dev, "esparser: input parsing error ret %d (%x <=> %x)\n",
+				ret, wp, wp2);
+			amvdec_remove_ts(sess, vb->timestamp);
+			v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
+
+			return 0;
+		}
 	}
 
 	atomic_inc(&sess->esparser_queued_bufs);
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Christian Hewitt <christianshewitt@gmail.com>
To: Neil Armstrong <neil.armstrong@linaro.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	linux-media@vger.kernel.org, linux-amlogic@lists.infradead.org,
	linux-staging@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH] media: meson: vdec: esparser: check parsing state with hardware write pointer
Date: Mon, 23 Jan 2023 09:43:00 +0000	[thread overview]
Message-ID: <20230123094300.2816812-1-christianshewitt@gmail.com> (raw)

From: Neil Armstrong <narmstrong@baylibre.com>

Also check the hardware write pointer to check if ES Parser has stalled.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 drivers/staging/media/meson/vdec/esparser.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/meson/vdec/esparser.c b/drivers/staging/media/meson/vdec/esparser.c
index df5956c6141d..41b705f999b2 100644
--- a/drivers/staging/media/meson/vdec/esparser.c
+++ b/drivers/staging/media/meson/vdec/esparser.c
@@ -300,6 +300,7 @@ esparser_queue(struct amvdec_session *sess, struct vb2_v4l2_buffer *vbuf)
 	u32 num_dst_bufs = 0;
 	u32 offset;
 	u32 pad_size;
+	u32 wp, wp2;
 
 	/*
 	 * When max ref frame is held by VP9, this should be -= 3 to prevent a
@@ -354,15 +355,21 @@ esparser_queue(struct amvdec_session *sess, struct vb2_v4l2_buffer *vbuf)
 	}
 
 	pad_size = esparser_pad_start_code(core, vb, payload_size);
+	wp = amvdec_read_parser(core, PARSER_VIDEO_WP);
 	ret = esparser_write_data(core, phy, payload_size + pad_size);
+	wp2 = amvdec_read_parser(core, PARSER_VIDEO_WP);
 
 	if (ret <= 0) {
-		dev_warn(core->dev, "esparser: input parsing error\n");
-		amvdec_remove_ts(sess, vb->timestamp);
-		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
 		amvdec_write_parser(core, PARSER_FETCH_CMD, 0);
 
-		return 0;
+		if (ret < 0 || wp2 == wp) {
+			dev_err(core->dev, "esparser: input parsing error ret %d (%x <=> %x)\n",
+				ret, wp, wp2);
+			amvdec_remove_ts(sess, vb->timestamp);
+			v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
+
+			return 0;
+		}
 	}
 
 	atomic_inc(&sess->esparser_queued_bufs);
-- 
2.34.1


_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

WARNING: multiple messages have this Message-ID (diff)
From: Christian Hewitt <christianshewitt@gmail.com>
To: Neil Armstrong <neil.armstrong@linaro.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	linux-media@vger.kernel.org, linux-amlogic@lists.infradead.org,
	linux-staging@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: Christian Hewitt <christianshewitt@gmail.com>,
	Neil Armstrong <narmstrong@baylibre.com>
Subject: [PATCH] media: meson: vdec: esparser: check parsing state with hardware write pointer
Date: Mon, 23 Jan 2023 09:43:00 +0000	[thread overview]
Message-ID: <20230123094300.2816812-1-christianshewitt@gmail.com> (raw)

From: Neil Armstrong <narmstrong@baylibre.com>

Also check the hardware write pointer to check if ES Parser has stalled.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 drivers/staging/media/meson/vdec/esparser.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/meson/vdec/esparser.c b/drivers/staging/media/meson/vdec/esparser.c
index df5956c6141d..41b705f999b2 100644
--- a/drivers/staging/media/meson/vdec/esparser.c
+++ b/drivers/staging/media/meson/vdec/esparser.c
@@ -300,6 +300,7 @@ esparser_queue(struct amvdec_session *sess, struct vb2_v4l2_buffer *vbuf)
 	u32 num_dst_bufs = 0;
 	u32 offset;
 	u32 pad_size;
+	u32 wp, wp2;
 
 	/*
 	 * When max ref frame is held by VP9, this should be -= 3 to prevent a
@@ -354,15 +355,21 @@ esparser_queue(struct amvdec_session *sess, struct vb2_v4l2_buffer *vbuf)
 	}
 
 	pad_size = esparser_pad_start_code(core, vb, payload_size);
+	wp = amvdec_read_parser(core, PARSER_VIDEO_WP);
 	ret = esparser_write_data(core, phy, payload_size + pad_size);
+	wp2 = amvdec_read_parser(core, PARSER_VIDEO_WP);
 
 	if (ret <= 0) {
-		dev_warn(core->dev, "esparser: input parsing error\n");
-		amvdec_remove_ts(sess, vb->timestamp);
-		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
 		amvdec_write_parser(core, PARSER_FETCH_CMD, 0);
 
-		return 0;
+		if (ret < 0 || wp2 == wp) {
+			dev_err(core->dev, "esparser: input parsing error ret %d (%x <=> %x)\n",
+				ret, wp, wp2);
+			amvdec_remove_ts(sess, vb->timestamp);
+			v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
+
+			return 0;
+		}
 	}
 
 	atomic_inc(&sess->esparser_queued_bufs);
-- 
2.34.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2023-01-23  9:43 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-23  9:43 Christian Hewitt [this message]
2023-01-23  9:43 ` [PATCH] media: meson: vdec: esparser: check parsing state with hardware write pointer Christian Hewitt
2023-01-23  9:43 ` Christian Hewitt
2023-01-23  9:47 ` Neil Armstrong
2023-01-23  9:47   ` Neil Armstrong
2023-01-23  9:47   ` Neil Armstrong
2023-01-23 12:04 ` Dan Carpenter
2023-01-23 12:04   ` Dan Carpenter
2023-01-23 12:04   ` Dan Carpenter
2023-03-21 13:58   ` Hans Verkuil
2023-03-21 13:58     ` Hans Verkuil
2023-03-21 13:58     ` Hans Verkuil

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