Re: 答复: [PATCH 4/5] media: mtk-vcodec: Add two error cases upon vpu irq handling

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On 09.08.21 09:37, Irui Wang (王瑞) wrote:
Hi Dafna,

I am testing the vp8 encoder on chromeos and at some point the encoder interrupts stop arriving so I try to figure out why and report any possible error.
1. Log shows wait IRQ timeout ?

Hi, yes, I get timeout when waiting to the encoder interrupt. The timeout is on vp8_enc_wait_venc_done


2. Always happened  issue ?  timeout at the beginning or  in processing ?

The commands that I run is:

sudo --user=#1000 /usr/local/libexec/chrome-binary-tests/video_encode_accelerator_tests --gtest_filter=-*NV12Dmabuf*  --codec=vp8 /usr/local/share/tast/data/chromiumos/tast/local/bundles/cros/video/data/tulip2-320x180.yuv --disable_validator

The command sometime succeed but when I run it sequentially then at some point after few attempts I start to get those timeout errors.

3. how about IRQ infos?
cat /proc/interrupts | grep vcodec
18002000.vcodec   >> it's H.264 encoder
19002000.vcodec  >> it's  VP8 encoder

I was told you have  met another H.264 encoding failed before, did you find reasons about that ?

No,
But since I see that the google meetup uses the vp8 encoder I decided to test the vp8 first.

[   81.918747] [MTK_V4L2][ERROR] mtk_vcodec_wait_for_done_ctx:32: [3] ctx->type=1, cmd=1, wait_event_interruptible_timeout time=1000ms out 0 0!
[   81.931392] [MTK_VCODEC][ERROR][3]: h264_encode_frame() irq_status=0 failed
[   81.938470] [MTK_V4L2][ERROR] mtk_venc_worker:1219: venc_if_encode failed=-5



MT8173 latest VPUD firmware:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=aaed4a8bf9a77ec68376e8d92fb218d5fdd88b59


I uses the latest firmware.

Thanks,
Dafna

Thanks
Best Regards

-----邮件原件-----
发件人: Dafna Hirschfeld [mailto:dafna.hirschfeld@xxxxxxxxxxxxx]
发送时间: 2021年8月6日 15:49
收件人: Irui Wang (王瑞); linux-kernel@xxxxxxxxxxxxxxx; linux-media@xxxxxxxxxxxxxxx; linux-mediatek@xxxxxxxxxxxxxxxxxxx
抄送: dafna3@xxxxxxxxx; tfiga@xxxxxxxxxxxx; Tiffany Lin (林慧珊); eizan@xxxxxxxxxxxx; Maoguang Meng (孟毛广); kernel@xxxxxxxxxxxxx; mchehab@xxxxxxxxxx; hverkuil@xxxxxxxxx; Yunfei Dong (董云飞); Yong Wu (吴勇); hsinyi@xxxxxxxxxxxx; matthias.bgg@xxxxxxxxx; Andrew-CT Chen (陳智迪); acourbot@xxxxxxxxxxxx
主题: Re: [PATCH 4/5] media: mtk-vcodec: Add two error cases upon vpu irq handling



On 06.08.21 08:58, Irui Wang (王瑞) wrote:
On Wed, 2021-08-04 at 16:27 +0200, Dafna Hirschfeld wrote:
1. Fail if the function mtk_vcodec_fw_map_dm_addr returns ERR pointer. 2. Fail if the state from the vpu msg is either VEN_IPI_MSG_ENC_STATE_ERROR or VEN_IPI_MSG_ENC_STATE_PART

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>
---
  drivers/media/platform/mtk-vcodec/venc_vpu_if.c | 8 ++++++++
  1 file changed, 8 insertions(+)

diff --git a/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
b/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
index 32dc844d16f9..234705ba7cd6 100644
--- a/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
+++ b/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
@@ -17,6 +17,8 @@ static int handle_enc_init_msg(struct venc_vpu_inst *vpu, const void *data)
  vpu->vsi = mtk_vcodec_fw_map_dm_addr(vpu->ctx->dev->fw_handler,
       msg->vpu_inst_addr);
+if (IS_ERR(vpu->vsi))
+return PTR_ERR(vpu->vsi);
  /* Firmware version field value is unspecified on MT8173. */
  if (vpu->ctx->dev->venc_pdata->chip == MTK_MT8173)
  return 0;
@@ -42,6 +44,12 @@ static int handle_enc_encode_msg(struct venc_vpu_inst *vpu, const void *data)
  vpu->state = msg->state;
  vpu->bs_size = msg->bs_size;
  vpu->is_key_frm = msg->is_key_frm;
+if (vpu->state == VEN_IPI_MSG_ENC_STATE_ERROR ||
+    vpu->state == VEN_IPI_MSG_ENC_STATE_PART) {
+mtk_vcodec_err(vpu, "bad ipi-enc-state: %s",
+       vpu->state ==
VEN_IPI_MSG_ENC_STATE_ERROR ? "ERR" : "PART");
+return -EINVAL;
+}

Hi Dafna,

This state check is useless, the enc result will check in "vpu_enc_ipi_handler".


Hi, thanks for reviewing. I see that the vpu_enc_ipi_handler only test the msg->status and I see that the states are not tested anywhere except of "skip" state in the h264 enc.

Can't there be a scenario where msg->status is ok but the state is error?
I am testing the vp8 encoder on chromeos and at some point the encoder interrupts stop arriving so I try to figure out why and report any possible error.

Thanks,
Dafna

Thanks

  return 0;
  }

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