On 01/30/2017 06:28 PM, Mauro Carvalho Chehab wrote:
> Em Mon, 28 Nov 2016 11:30:52 +0100
> Jean-Christophe Trotin <jean-christophe.tro...@st.com> escreveu:
>
>> This patch prints unconditionnaly a short summary
>
> Why? Is this driver so broken that everyone would need an
> unconditional "short summary" about what happened there?
>
> If not, then please use dev_dbg() or debugfs instead. If yes, then
> we should move this driver to staging.
>
Hi Mauro,

The unconditional character of this "short summary" was a "facility" that our 
customers used to get (it doesn't mean that this driver is broken).
That's said, I understand your comment, and I will propose today a new version 
of this patch with dev_dbg() instead of dev_info().

Regards,
Jean-Christophe.

>> about the encoding
>> operation at each instance closing, for debug purpose:
>> - information about the frame (format, resolution)
>> - information about the stream (format, profile, level, resolution)
>> - number of encoded frames
>> - potential (system, encoding...) errors
>>
>> Signed-off-by: Yannick Fertre <yannick.fer...@st.com>
>> Signed-off-by: Jean-Christophe Trotin <jean-christophe.tro...@st.com>
>> ---
>>  drivers/media/platform/sti/hva/hva-h264.c |  6 ++++
>>  drivers/media/platform/sti/hva/hva-hw.c   |  5 ++++
>>  drivers/media/platform/sti/hva/hva-mem.c  |  5 +++-
>>  drivers/media/platform/sti/hva/hva-v4l2.c | 49 
>> ++++++++++++++++++++++++-------
>>  drivers/media/platform/sti/hva/hva.h      |  8 +++++
>>  5 files changed, 62 insertions(+), 11 deletions(-)
>>
>> diff --git a/drivers/media/platform/sti/hva/hva-h264.c 
>> b/drivers/media/platform/sti/hva/hva-h264.c
>> index 8cc8467..e6f247a 100644
>> --- a/drivers/media/platform/sti/hva/hva-h264.c
>> +++ b/drivers/media/platform/sti/hva/hva-h264.c
>> @@ -607,6 +607,7 @@ static int hva_h264_prepare_task(struct hva_ctx *pctx,
>>                      "%s   width(%d) or height(%d) exceeds limits (%dx%d)\n",
>>                      pctx->name, frame_width, frame_height,
>>                      H264_MAX_SIZE_W, H264_MAX_SIZE_H);
>> +            pctx->frame_errors++;
>>              return -EINVAL;
>>      }
>>
>> @@ -717,6 +718,7 @@ static int hva_h264_prepare_task(struct hva_ctx *pctx,
>>      default:
>>              dev_err(dev, "%s   invalid source pixel format\n",
>>                      pctx->name);
>> +            pctx->frame_errors++;
>>              return -EINVAL;
>>      }
>>
>> @@ -741,6 +743,7 @@ static int hva_h264_prepare_task(struct hva_ctx *pctx,
>>
>>      if (td->framerate_den == 0) {
>>              dev_err(dev, "%s   invalid framerate\n", pctx->name);
>> +            pctx->frame_errors++;
>>              return -EINVAL;
>>      }
>>
>> @@ -831,6 +834,7 @@ static int hva_h264_prepare_task(struct hva_ctx *pctx,
>>          (payload > MAX_SPS_PPS_SIZE)) {
>>              dev_err(dev, "%s   invalid sps/pps size %d\n", pctx->name,
>>                      payload);
>> +            pctx->frame_errors++;
>>              return -EINVAL;
>>      }
>>
>> @@ -842,6 +846,7 @@ static int hva_h264_prepare_task(struct hva_ctx *pctx,
>>                                                 (u8 *)stream->vaddr,
>>                                                 &payload)) {
>>              dev_err(dev, "%s   fail to get SEI nal\n", pctx->name);
>> +            pctx->frame_errors++;
>>              return -EINVAL;
>>      }
>>
>> @@ -963,6 +968,7 @@ static int hva_h264_open(struct hva_ctx *pctx)
>>  err_ctx:
>>      devm_kfree(dev, ctx);
>>  err:
>> +    pctx->sys_errors++;
>>      return ret;
>>  }
>>
>> diff --git a/drivers/media/platform/sti/hva/hva-hw.c 
>> b/drivers/media/platform/sti/hva/hva-hw.c
>> index 68d625b..5104068 100644
>> --- a/drivers/media/platform/sti/hva/hva-hw.c
>> +++ b/drivers/media/platform/sti/hva/hva-hw.c
>> @@ -470,6 +470,7 @@ int hva_hw_execute_task(struct hva_ctx *ctx, enum 
>> hva_hw_cmd_type cmd,
>>
>>      if (pm_runtime_get_sync(dev) < 0) {
>>              dev_err(dev, "%s     failed to get pm_runtime\n", ctx->name);
>> +            ctx->sys_errors++;
>>              ret = -EFAULT;
>>              goto out;
>>      }
>> @@ -481,6 +482,7 @@ int hva_hw_execute_task(struct hva_ctx *ctx, enum 
>> hva_hw_cmd_type cmd,
>>              break;
>>      default:
>>              dev_dbg(dev, "%s     unknown command 0x%x\n", ctx->name, cmd);
>> +            ctx->encode_errors++;
>>              ret = -EFAULT;
>>              goto out;
>>      }
>> @@ -511,6 +513,7 @@ int hva_hw_execute_task(struct hva_ctx *ctx, enum 
>> hva_hw_cmd_type cmd,
>>                                       msecs_to_jiffies(2000))) {
>>              dev_err(dev, "%s     %s: time out on completion\n", ctx->name,
>>                      __func__);
>> +            ctx->encode_errors++;
>>              ret = -EFAULT;
>>              goto out;
>>      }
>> @@ -518,6 +521,8 @@ int hva_hw_execute_task(struct hva_ctx *ctx, enum 
>> hva_hw_cmd_type cmd,
>>      /* get encoding status */
>>      ret = ctx->hw_err ? -EFAULT : 0;
>>
>> +    ctx->encode_errors += ctx->hw_err ? 1 : 0;
>> +
>>  out:
>>      disable_irq(hva->irq_its);
>>      disable_irq(hva->irq_err);
>> diff --git a/drivers/media/platform/sti/hva/hva-mem.c 
>> b/drivers/media/platform/sti/hva/hva-mem.c
>> index 649f660..821c78e 100644
>> --- a/drivers/media/platform/sti/hva/hva-mem.c
>> +++ b/drivers/media/platform/sti/hva/hva-mem.c
>> @@ -17,14 +17,17 @@ int hva_mem_alloc(struct hva_ctx *ctx, u32 size, const 
>> char *name,
>>      void *base;
>>
>>      b = devm_kzalloc(dev, sizeof(*b), GFP_KERNEL);
>> -    if (!b)
>> +    if (!b) {
>> +            ctx->sys_errors++;
>>              return -ENOMEM;
>> +    }
>>
>>      base = dma_alloc_attrs(dev, size, &paddr, GFP_KERNEL | GFP_DMA,
>>                             DMA_ATTR_WRITE_COMBINE);
>>      if (!base) {
>>              dev_err(dev, "%s %s : dma_alloc_attrs failed for %s 
>> (size=%d)\n",
>>                      ctx->name, __func__, name, size);
>> +            ctx->sys_errors++;
>>              devm_kfree(dev, b);
>>              return -ENOMEM;
>>      }
>> diff --git a/drivers/media/platform/sti/hva/hva-v4l2.c 
>> b/drivers/media/platform/sti/hva/hva-v4l2.c
>> index 6bf3c858..a13b03c 100644
>> --- a/drivers/media/platform/sti/hva/hva-v4l2.c
>> +++ b/drivers/media/platform/sti/hva/hva-v4l2.c
>> @@ -226,6 +226,28 @@ static int hva_open_encoder(struct hva_ctx *ctx, u32 
>> streamformat,
>>      return ret;
>>  }
>>
>> +void hva_dbg_summary(struct hva_ctx *ctx)
>> +{
>> +    struct device *dev = ctx_to_dev(ctx);
>> +    struct hva_streaminfo *stream = &ctx->streaminfo;
>> +    struct hva_frameinfo *frame = &ctx->frameinfo;
>> +
>> +    if (!(ctx->flags & HVA_FLAG_STREAMINFO))
>> +            return;
>> +
>> +    dev_info(dev, "%s %4.4s %dx%d > %4.4s %dx%d %s %s: %d frames encoded, 
>> %d system errors, %d encoding errors, %d frame errors\n",
>> +             ctx->name,
>> +             (char *)&frame->pixelformat,
>> +             frame->aligned_width, frame->aligned_height,
>> +             (char *)&stream->streamformat,
>> +             stream->width, stream->height,
>> +             stream->profile, stream->level,
>> +             ctx->encoded_frames,
>> +             ctx->sys_errors,
>> +             ctx->encode_errors,
>> +             ctx->frame_errors);
>> +}
>> +
>>  /*
>>   * V4L2 ioctl operations
>>   */
>> @@ -614,19 +636,17 @@ static int hva_s_ctrl(struct v4l2_ctrl *ctrl)
>>              break;
>>      case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
>>              ctx->ctrls.profile = ctrl->val;
>> -            if (ctx->flags & HVA_FLAG_STREAMINFO)
>> -                    snprintf(ctx->streaminfo.profile,
>> -                             sizeof(ctx->streaminfo.profile),
>> -                             "%s profile",
>> -                             v4l2_ctrl_get_menu(ctrl->id)[ctrl->val]);
>> +            snprintf(ctx->streaminfo.profile,
>> +                     sizeof(ctx->streaminfo.profile),
>> +                     "%s profile",
>> +                     v4l2_ctrl_get_menu(ctrl->id)[ctrl->val]);
>>              break;
>>      case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
>>              ctx->ctrls.level = ctrl->val;
>> -            if (ctx->flags & HVA_FLAG_STREAMINFO)
>> -                    snprintf(ctx->streaminfo.level,
>> -                             sizeof(ctx->streaminfo.level),
>> -                             "level %s",
>> -                             v4l2_ctrl_get_menu(ctrl->id)[ctrl->val]);
>> +            snprintf(ctx->streaminfo.level,
>> +                     sizeof(ctx->streaminfo.level),
>> +                     "level %s",
>> +                     v4l2_ctrl_get_menu(ctrl->id)[ctrl->val]);
>>              break;
>>      case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE:
>>              ctx->ctrls.entropy_mode = ctrl->val;
>> @@ -812,6 +832,8 @@ static void hva_run_work(struct work_struct *work)
>>              dst_buf->field = V4L2_FIELD_NONE;
>>              dst_buf->sequence = ctx->stream_num - 1;
>>
>> +            ctx->encoded_frames++;
>> +
>>              v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
>>              v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
>>      }
>> @@ -1026,6 +1048,8 @@ static int hva_start_streaming(struct vb2_queue *vq, 
>> unsigned int count)
>>                      v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_QUEUED);
>>      }
>>
>> +    ctx->sys_errors++;
>> +
>>      return ret;
>>  }
>>
>> @@ -1150,6 +1174,7 @@ static int hva_open(struct file *file)
>>      if (ret) {
>>              dev_err(dev, "%s [x:x] failed to setup controls\n",
>>                      HVA_PREFIX);
>> +            ctx->sys_errors++;
>>              goto err_fh;
>>      }
>>      ctx->fh.ctrl_handler = &ctx->ctrl_handler;
>> @@ -1162,6 +1187,7 @@ static int hva_open(struct file *file)
>>              ret = PTR_ERR(ctx->fh.m2m_ctx);
>>              dev_err(dev, "%s failed to initialize m2m context (%d)\n",
>>                      HVA_PREFIX, ret);
>> +            ctx->sys_errors++;
>>              goto err_ctrls;
>>      }
>>
>> @@ -1206,6 +1232,9 @@ static int hva_release(struct file *file)
>>              hva->nb_of_instances--;
>>      }
>>
>> +    /* trace a summary of instance before closing (debug purpose) */
>> +    hva_dbg_summary(ctx);
>> +
>>      v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
>>
>>      v4l2_ctrl_handler_free(&ctx->ctrl_handler);
>> diff --git a/drivers/media/platform/sti/hva/hva.h 
>> b/drivers/media/platform/sti/hva/hva.h
>> index caa5808..1e30abe 100644
>> --- a/drivers/media/platform/sti/hva/hva.h
>> +++ b/drivers/media/platform/sti/hva/hva.h
>> @@ -182,6 +182,10 @@ struct hva_stream {
>>   * @priv:            private codec data for this instance, allocated
>>   *                   by encoder @open time
>>   * @hw_err:          true if hardware error detected
>> + * @encoded_frames:  number of encoded frames
>> + * @sys_errors:      number of system errors (memory, resource, pm...)
>> + * @encode_errors:   number of encoding errors (hw/driver errors)
>> + * @frame_errors:    number of frame errors (format, size, header...)
>>   */
>>  struct hva_ctx {
>>      struct hva_dev                  *hva_dev;
>> @@ -207,6 +211,10 @@ struct hva_ctx {
>>      struct hva_enc                  *enc;
>>      void                            *priv;
>>      bool                            hw_err;
>> +    u32                             encoded_frames;
>> +    u32                             sys_errors;
>> +    u32                             encode_errors;
>> +    u32                             frame_errors;
>>  };
>>
>>  #define HVA_FLAG_STREAMINFO 0x0001
>
>
>
> Thanks,
> Mauro
>--
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