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
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next reply other threads:[~2023-01-23 9:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-23 9:43 Christian Hewitt [this message]
2023-01-23 9:47 ` [PATCH] media: meson: vdec: esparser: check parsing state with hardware write pointer Neil Armstrong
2023-01-23 12:04 ` Dan Carpenter
2023-03-21 13:58 ` Hans Verkuil
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