[v4,06/12] media: verisilicon: Check AV1 bitstreams bit depth

Message ID 20230214140557.537984-7-benjamin.gaignard@collabora.com
State New
Headers
Series AV1 stateless decoder for RK3588 |

Commit Message

Benjamin Gaignard Feb. 14, 2023, 2:05 p.m. UTC
  The driver supports 8 and 10 bits bitstreams, make sure to discard
other cases.
It could happens that userland test if V4L2_CID_STATELESS_AV1_SEQUENCE
exists without setting bit_depth field in this case use
HANTRO_DEFAULT_BIT_DEPTH value.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
version 4:
- This patch is the result of squashing "Save bit depth for AV1 decoder"
  and "Check AV1 bitstreams bit depth" of version 3 + adapation to 
  "[PATCH v8 0/6] media: verisilicon: HEVC: fix 10bits handling" series.

 .../media/platform/verisilicon/hantro_drv.c   | 36 +++++++++++++++++++
 .../media/platform/verisilicon/hantro_v4l2.c  |  4 +++
 2 files changed, 40 insertions(+)
  

Comments

Ezequiel Garcia Feb. 18, 2023, 1:11 p.m. UTC | #1
On Tue, Feb 14, 2023 at 11:06 AM Benjamin Gaignard
<benjamin.gaignard@collabora.com> wrote:
>
> The driver supports 8 and 10 bits bitstreams, make sure to discard
> other cases.
> It could happens that userland test if V4L2_CID_STATELESS_AV1_SEQUENCE
> exists without setting bit_depth field in this case use
> HANTRO_DEFAULT_BIT_DEPTH value.
>

This shouldn't happen.

If the bit_depth argument in hantro_check_depth_match()
can be set unchecked by userspace, we have done something wrong!!

Are you sure that userspace can do a S_CTRL with an invalid bit-depth?
The try_or_set_cluster() function seems to always call try_ctrl before s_ctrl.

Thanks,
Ezequiel

> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> ---
> version 4:
> - This patch is the result of squashing "Save bit depth for AV1 decoder"
>   and "Check AV1 bitstreams bit depth" of version 3 + adapation to
>   "[PATCH v8 0/6] media: verisilicon: HEVC: fix 10bits handling" series.
>
>  .../media/platform/verisilicon/hantro_drv.c   | 36 +++++++++++++++++++
>  .../media/platform/verisilicon/hantro_v4l2.c  |  4 +++
>  2 files changed, 40 insertions(+)
>
> diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
> index bc1a85456142..666cd46902da 100644
> --- a/drivers/media/platform/verisilicon/hantro_drv.c
> +++ b/drivers/media/platform/verisilicon/hantro_drv.c
> @@ -275,7 +275,13 @@ static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
>                 /* We only support profile 0 */
>                 if (dec_params->profile != 0)
>                         return -EINVAL;
> +       } else if (ctrl->id == V4L2_CID_STATELESS_AV1_SEQUENCE) {
> +               const struct v4l2_ctrl_av1_sequence *sequence = ctrl->p_new.p_av1_sequence;
> +
> +               if (sequence->bit_depth != 8 && sequence->bit_depth != 10)
> +                       return -EINVAL;
>         }
> +
>         return 0;
>  }
>
> @@ -348,6 +354,30 @@ static int hantro_hevc_s_ctrl(struct v4l2_ctrl *ctrl)
>         return 0;
>  }
>
> +static int hantro_av1_s_ctrl(struct v4l2_ctrl *ctrl)
> +{
> +       struct hantro_ctx *ctx;
> +
> +       ctx = container_of(ctrl->handler,
> +                          struct hantro_ctx, ctrl_handler);
> +
> +       switch (ctrl->id) {
> +       case V4L2_CID_STATELESS_AV1_SEQUENCE:
> +       {
> +               int bit_depth = ctrl->p_new.p_av1_sequence->bit_depth;
> +
> +               if (ctx->bit_depth == bit_depth)
> +                       return 0;
> +
> +               return hantro_reset_raw_fmt(ctx, bit_depth);
> +       }
> +       default:
> +               return -EINVAL;
> +       }
> +
> +       return 0;
> +}
> +
>  static const struct v4l2_ctrl_ops hantro_ctrl_ops = {
>         .try_ctrl = hantro_try_ctrl,
>  };
> @@ -365,6 +395,11 @@ static const struct v4l2_ctrl_ops hantro_hevc_ctrl_ops = {
>         .s_ctrl = hantro_hevc_s_ctrl,
>  };
>
> +static const struct v4l2_ctrl_ops hantro_av1_ctrl_ops = {
> +       .try_ctrl = hantro_try_ctrl,
> +       .s_ctrl = hantro_av1_s_ctrl,
> +};
> +
>  #define HANTRO_JPEG_ACTIVE_MARKERS     (V4L2_JPEG_ACTIVE_MARKER_APP0 | \
>                                          V4L2_JPEG_ACTIVE_MARKER_COM | \
>                                          V4L2_JPEG_ACTIVE_MARKER_DQT | \
> @@ -542,6 +577,7 @@ static const struct hantro_ctrl controls[] = {
>                 .codec = HANTRO_AV1_DECODER,
>                 .cfg = {
>                         .id = V4L2_CID_STATELESS_AV1_SEQUENCE,
> +                       .ops = &hantro_av1_ctrl_ops,
>                 },
>         }, {
>                 .codec = HANTRO_AV1_DECODER,
> diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
> index 992c5baa929f..7e74e47c9a89 100644
> --- a/drivers/media/platform/verisilicon/hantro_v4l2.c
> +++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
> @@ -86,6 +86,10 @@ hantro_check_depth_match(const struct hantro_fmt *fmt, int bit_depth)
>         if (!fmt->match_depth && !fmt->postprocessed)
>                 return true;
>
> +       /* 0 means default depth, which is 8 */
> +       if (!bit_depth)
> +               bit_depth = HANTRO_DEFAULT_BIT_DEPTH;
> +
>         fmt_depth = hantro_get_format_depth(fmt->fourcc);
>
>         /*
> --
> 2.34.1
>
  
Benjamin Gaignard Feb. 20, 2023, 4:24 p.m. UTC | #2
Le 18/02/2023 à 14:11, Ezequiel Garcia a écrit :
> On Tue, Feb 14, 2023 at 11:06 AM Benjamin Gaignard
> <benjamin.gaignard@collabora.com> wrote:
>> The driver supports 8 and 10 bits bitstreams, make sure to discard
>> other cases.
>> It could happens that userland test if V4L2_CID_STATELESS_AV1_SEQUENCE
>> exists without setting bit_depth field in this case use
>> HANTRO_DEFAULT_BIT_DEPTH value.
>>
> This shouldn't happen.
>
> If the bit_depth argument in hantro_check_depth_match()
> can be set unchecked by userspace, we have done something wrong!!
>
> Are you sure that userspace can do a S_CTRL with an invalid bit-depth?
> The try_or_set_cluster() function seems to always call try_ctrl before s_ctrl.

I have dump the stack when AV1 sequence bit depth = 0 in s_ctrl.
It is happening when opening the driver, v4l2 setup the ctrls by calling __v4l2_ctrl_handler_setup()
this led to call hantro_av1_s_ctrl() with empty structure.

For other codecs isn't a problem because bit depth is coded with a minus 8 value (ie: 8 bits = 0)
while for AV1 it is the real value (ie: 8 bits = 8).

[   88.478751] Hardware name: Radxa Rock 5A Board (DT)
[   88.479184] Call trace:
[   88.479406]  dump_backtrace.part.0+0xdc/0xf0
[   88.479796]  show_stack+0x18/0x30
[   88.480099]  dump_stack_lvl+0x68/0x84
[   88.480431]  dump_stack+0x18/0x34
[   88.480732]  hantro_av1_s_ctrl+0x7c/0xcc [hantro_vpu]
[   88.481211]  __v4l2_ctrl_handler_setup+0x120/0x154
[   88.481643]  v4l2_ctrl_handler_setup+0x2c/0x50
[   88.482043]  hantro_open+0x138/0x204 [hantro_vpu]
[   88.482490]  v4l2_open+0xa8/0x124
[   88.482794]  chrdev_open+0xc0/0x22c
[   88.483114]  do_dentry_open+0x13c/0x490
[   88.483464]  vfs_open+0x2c/0x40
[   88.483749]  path_openat+0x878/0xe50
[   88.484074]  do_filp_open+0x80/0x130
[   88.484399]  do_sys_openat2+0xb4/0x170
[   88.484736]  __arm64_sys_openat+0x60/0xb0
[   88.485097]  invoke_syscall+0x48/0x114
[   88.485437]  el0_svc_common.constprop.0+0x44/0xfc
[   88.485860]  do_el0_svc+0x3c/0xc0
[   88.486163]  el0_svc+0x2c/0x84
[   88.486441]  el0t_64_sync_handler+0xbc/0x140
[   88.486826]  el0t_64_sync+0x190/0x194

Regards,
Benjamin

>
> Thanks,
> Ezequiel
>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>> ---
>> version 4:
>> - This patch is the result of squashing "Save bit depth for AV1 decoder"
>>    and "Check AV1 bitstreams bit depth" of version 3 + adapation to
>>    "[PATCH v8 0/6] media: verisilicon: HEVC: fix 10bits handling" series.
>>
>>   .../media/platform/verisilicon/hantro_drv.c   | 36 +++++++++++++++++++
>>   .../media/platform/verisilicon/hantro_v4l2.c  |  4 +++
>>   2 files changed, 40 insertions(+)
>>
>> diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
>> index bc1a85456142..666cd46902da 100644
>> --- a/drivers/media/platform/verisilicon/hantro_drv.c
>> +++ b/drivers/media/platform/verisilicon/hantro_drv.c
>> @@ -275,7 +275,13 @@ static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
>>                  /* We only support profile 0 */
>>                  if (dec_params->profile != 0)
>>                          return -EINVAL;
>> +       } else if (ctrl->id == V4L2_CID_STATELESS_AV1_SEQUENCE) {
>> +               const struct v4l2_ctrl_av1_sequence *sequence = ctrl->p_new.p_av1_sequence;
>> +
>> +               if (sequence->bit_depth != 8 && sequence->bit_depth != 10)
>> +                       return -EINVAL;
>>          }
>> +
>>          return 0;
>>   }
>>
>> @@ -348,6 +354,30 @@ static int hantro_hevc_s_ctrl(struct v4l2_ctrl *ctrl)
>>          return 0;
>>   }
>>
>> +static int hantro_av1_s_ctrl(struct v4l2_ctrl *ctrl)
>> +{
>> +       struct hantro_ctx *ctx;
>> +
>> +       ctx = container_of(ctrl->handler,
>> +                          struct hantro_ctx, ctrl_handler);
>> +
>> +       switch (ctrl->id) {
>> +       case V4L2_CID_STATELESS_AV1_SEQUENCE:
>> +       {
>> +               int bit_depth = ctrl->p_new.p_av1_sequence->bit_depth;
>> +
>> +               if (ctx->bit_depth == bit_depth)
>> +                       return 0;
>> +
>> +               return hantro_reset_raw_fmt(ctx, bit_depth);
>> +       }
>> +       default:
>> +               return -EINVAL;
>> +       }
>> +
>> +       return 0;
>> +}
>> +
>>   static const struct v4l2_ctrl_ops hantro_ctrl_ops = {
>>          .try_ctrl = hantro_try_ctrl,
>>   };
>> @@ -365,6 +395,11 @@ static const struct v4l2_ctrl_ops hantro_hevc_ctrl_ops = {
>>          .s_ctrl = hantro_hevc_s_ctrl,
>>   };
>>
>> +static const struct v4l2_ctrl_ops hantro_av1_ctrl_ops = {
>> +       .try_ctrl = hantro_try_ctrl,
>> +       .s_ctrl = hantro_av1_s_ctrl,
>> +};
>> +
>>   #define HANTRO_JPEG_ACTIVE_MARKERS     (V4L2_JPEG_ACTIVE_MARKER_APP0 | \
>>                                           V4L2_JPEG_ACTIVE_MARKER_COM | \
>>                                           V4L2_JPEG_ACTIVE_MARKER_DQT | \
>> @@ -542,6 +577,7 @@ static const struct hantro_ctrl controls[] = {
>>                  .codec = HANTRO_AV1_DECODER,
>>                  .cfg = {
>>                          .id = V4L2_CID_STATELESS_AV1_SEQUENCE,
>> +                       .ops = &hantro_av1_ctrl_ops,
>>                  },
>>          }, {
>>                  .codec = HANTRO_AV1_DECODER,
>> diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
>> index 992c5baa929f..7e74e47c9a89 100644
>> --- a/drivers/media/platform/verisilicon/hantro_v4l2.c
>> +++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
>> @@ -86,6 +86,10 @@ hantro_check_depth_match(const struct hantro_fmt *fmt, int bit_depth)
>>          if (!fmt->match_depth && !fmt->postprocessed)
>>                  return true;
>>
>> +       /* 0 means default depth, which is 8 */
>> +       if (!bit_depth)
>> +               bit_depth = HANTRO_DEFAULT_BIT_DEPTH;
>> +
>>          fmt_depth = hantro_get_format_depth(fmt->fourcc);
>>
>>          /*
>> --
>> 2.34.1
>>
  
Nicolas Dufresne Feb. 20, 2023, 7 p.m. UTC | #3
Le lundi 20 février 2023 à 17:24 +0100, Benjamin Gaignard a écrit :
> Le 18/02/2023 à 14:11, Ezequiel Garcia a écrit :
> > On Tue, Feb 14, 2023 at 11:06 AM Benjamin Gaignard
> > <benjamin.gaignard@collabora.com> wrote:
> > > The driver supports 8 and 10 bits bitstreams, make sure to discard
> > > other cases.
> > > It could happens that userland test if V4L2_CID_STATELESS_AV1_SEQUENCE
> > > exists without setting bit_depth field in this case use
> > > HANTRO_DEFAULT_BIT_DEPTH value.
> > > 
> > This shouldn't happen.
> > 
> > If the bit_depth argument in hantro_check_depth_match()
> > can be set unchecked by userspace, we have done something wrong!!
> > 
> > Are you sure that userspace can do a S_CTRL with an invalid bit-depth?
> > The try_or_set_cluster() function seems to always call try_ctrl before s_ctrl.
> 
> I have dump the stack when AV1 sequence bit depth = 0 in s_ctrl.
> It is happening when opening the driver, v4l2 setup the ctrls by calling __v4l2_ctrl_handler_setup()
> this led to call hantro_av1_s_ctrl() with empty structure.
> 
> For other codecs isn't a problem because bit depth is coded with a minus 8 value (ie: 8 bits = 0)
> while for AV1 it is the real value (ie: 8 bits = 8).

Shouldn't this be fixed in v4l2-ctrls-core.c / std_init_compound() ? This is
what we do for VP9:


	case V4L2_CTRL_TYPE_VP9_FRAME:
		p_vp9_frame = p;
		p_vp9_frame->profile = 0;
		p_vp9_frame->bit_depth = 8;
		p_vp9_frame->flags |= V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING |
			V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING;
		break;


> 
> [   88.478751] Hardware name: Radxa Rock 5A Board (DT)
> [   88.479184] Call trace:
> [   88.479406]  dump_backtrace.part.0+0xdc/0xf0
> [   88.479796]  show_stack+0x18/0x30
> [   88.480099]  dump_stack_lvl+0x68/0x84
> [   88.480431]  dump_stack+0x18/0x34
> [   88.480732]  hantro_av1_s_ctrl+0x7c/0xcc [hantro_vpu]
> [   88.481211]  __v4l2_ctrl_handler_setup+0x120/0x154
> [   88.481643]  v4l2_ctrl_handler_setup+0x2c/0x50
> [   88.482043]  hantro_open+0x138/0x204 [hantro_vpu]
> [   88.482490]  v4l2_open+0xa8/0x124
> [   88.482794]  chrdev_open+0xc0/0x22c
> [   88.483114]  do_dentry_open+0x13c/0x490
> [   88.483464]  vfs_open+0x2c/0x40
> [   88.483749]  path_openat+0x878/0xe50
> [   88.484074]  do_filp_open+0x80/0x130
> [   88.484399]  do_sys_openat2+0xb4/0x170
> [   88.484736]  __arm64_sys_openat+0x60/0xb0
> [   88.485097]  invoke_syscall+0x48/0x114
> [   88.485437]  el0_svc_common.constprop.0+0x44/0xfc
> [   88.485860]  do_el0_svc+0x3c/0xc0
> [   88.486163]  el0_svc+0x2c/0x84
> [   88.486441]  el0t_64_sync_handler+0xbc/0x140
> [   88.486826]  el0t_64_sync+0x190/0x194
> 
> Regards,
> Benjamin
> 
> > 
> > Thanks,
> > Ezequiel
> > 
> > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
> > > ---
> > > version 4:
> > > - This patch is the result of squashing "Save bit depth for AV1 decoder"
> > >    and "Check AV1 bitstreams bit depth" of version 3 + adapation to
> > >    "[PATCH v8 0/6] media: verisilicon: HEVC: fix 10bits handling" series.
> > > 
> > >   .../media/platform/verisilicon/hantro_drv.c   | 36 +++++++++++++++++++
> > >   .../media/platform/verisilicon/hantro_v4l2.c  |  4 +++
> > >   2 files changed, 40 insertions(+)
> > > 
> > > diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
> > > index bc1a85456142..666cd46902da 100644
> > > --- a/drivers/media/platform/verisilicon/hantro_drv.c
> > > +++ b/drivers/media/platform/verisilicon/hantro_drv.c
> > > @@ -275,7 +275,13 @@ static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
> > >                  /* We only support profile 0 */
> > >                  if (dec_params->profile != 0)
> > >                          return -EINVAL;
> > > +       } else if (ctrl->id == V4L2_CID_STATELESS_AV1_SEQUENCE) {
> > > +               const struct v4l2_ctrl_av1_sequence *sequence = ctrl->p_new.p_av1_sequence;
> > > +
> > > +               if (sequence->bit_depth != 8 && sequence->bit_depth != 10)
> > > +                       return -EINVAL;
> > >          }
> > > +
> > >          return 0;
> > >   }
> > > 
> > > @@ -348,6 +354,30 @@ static int hantro_hevc_s_ctrl(struct v4l2_ctrl *ctrl)
> > >          return 0;
> > >   }
> > > 
> > > +static int hantro_av1_s_ctrl(struct v4l2_ctrl *ctrl)
> > > +{
> > > +       struct hantro_ctx *ctx;
> > > +
> > > +       ctx = container_of(ctrl->handler,
> > > +                          struct hantro_ctx, ctrl_handler);
> > > +
> > > +       switch (ctrl->id) {
> > > +       case V4L2_CID_STATELESS_AV1_SEQUENCE:
> > > +       {
> > > +               int bit_depth = ctrl->p_new.p_av1_sequence->bit_depth;
> > > +
> > > +               if (ctx->bit_depth == bit_depth)
> > > +                       return 0;
> > > +
> > > +               return hantro_reset_raw_fmt(ctx, bit_depth);
> > > +       }
> > > +       default:
> > > +               return -EINVAL;
> > > +       }
> > > +
> > > +       return 0;
> > > +}
> > > +
> > >   static const struct v4l2_ctrl_ops hantro_ctrl_ops = {
> > >          .try_ctrl = hantro_try_ctrl,
> > >   };
> > > @@ -365,6 +395,11 @@ static const struct v4l2_ctrl_ops hantro_hevc_ctrl_ops = {
> > >          .s_ctrl = hantro_hevc_s_ctrl,
> > >   };
> > > 
> > > +static const struct v4l2_ctrl_ops hantro_av1_ctrl_ops = {
> > > +       .try_ctrl = hantro_try_ctrl,
> > > +       .s_ctrl = hantro_av1_s_ctrl,
> > > +};
> > > +
> > >   #define HANTRO_JPEG_ACTIVE_MARKERS     (V4L2_JPEG_ACTIVE_MARKER_APP0 | \
> > >                                           V4L2_JPEG_ACTIVE_MARKER_COM | \
> > >                                           V4L2_JPEG_ACTIVE_MARKER_DQT | \
> > > @@ -542,6 +577,7 @@ static const struct hantro_ctrl controls[] = {
> > >                  .codec = HANTRO_AV1_DECODER,
> > >                  .cfg = {
> > >                          .id = V4L2_CID_STATELESS_AV1_SEQUENCE,
> > > +                       .ops = &hantro_av1_ctrl_ops,
> > >                  },
> > >          }, {
> > >                  .codec = HANTRO_AV1_DECODER,
> > > diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
> > > index 992c5baa929f..7e74e47c9a89 100644
> > > --- a/drivers/media/platform/verisilicon/hantro_v4l2.c
> > > +++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
> > > @@ -86,6 +86,10 @@ hantro_check_depth_match(const struct hantro_fmt *fmt, int bit_depth)
> > >          if (!fmt->match_depth && !fmt->postprocessed)
> > >                  return true;
> > > 
> > > +       /* 0 means default depth, which is 8 */
> > > +       if (!bit_depth)
> > > +               bit_depth = HANTRO_DEFAULT_BIT_DEPTH;
> > > +
> > >          fmt_depth = hantro_get_format_depth(fmt->fourcc);
> > > 
> > >          /*
> > > --
> > > 2.34.1
> > >
  
Benjamin Gaignard Feb. 21, 2023, 8:18 a.m. UTC | #4
Le 20/02/2023 à 20:00, Nicolas Dufresne a écrit :
> Le lundi 20 février 2023 à 17:24 +0100, Benjamin Gaignard a écrit :
>> Le 18/02/2023 à 14:11, Ezequiel Garcia a écrit :
>>> On Tue, Feb 14, 2023 at 11:06 AM Benjamin Gaignard
>>> <benjamin.gaignard@collabora.com> wrote:
>>>> The driver supports 8 and 10 bits bitstreams, make sure to discard
>>>> other cases.
>>>> It could happens that userland test if V4L2_CID_STATELESS_AV1_SEQUENCE
>>>> exists without setting bit_depth field in this case use
>>>> HANTRO_DEFAULT_BIT_DEPTH value.
>>>>
>>> This shouldn't happen.
>>>
>>> If the bit_depth argument in hantro_check_depth_match()
>>> can be set unchecked by userspace, we have done something wrong!!
>>>
>>> Are you sure that userspace can do a S_CTRL with an invalid bit-depth?
>>> The try_or_set_cluster() function seems to always call try_ctrl before s_ctrl.
>> I have dump the stack when AV1 sequence bit depth = 0 in s_ctrl.
>> It is happening when opening the driver, v4l2 setup the ctrls by calling __v4l2_ctrl_handler_setup()
>> this led to call hantro_av1_s_ctrl() with empty structure.
>>
>> For other codecs isn't a problem because bit depth is coded with a minus 8 value (ie: 8 bits = 0)
>> while for AV1 it is the real value (ie: 8 bits = 8).
> Shouldn't this be fixed in v4l2-ctrls-core.c / std_init_compound() ? This is
> what we do for VP9:
>
>
> 	case V4L2_CTRL_TYPE_VP9_FRAME:
> 		p_vp9_frame = p;
> 		p_vp9_frame->profile = 0;
> 		p_vp9_frame->bit_depth = 8;
> 		p_vp9_frame->flags |= V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING |
> 			V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING;
> 		break;

That is indeed a better solution.
I will add in my series has a fix of Daniel's series about AV1 uAPI.

Thanks,
Benjamin

>
>
>> [   88.478751] Hardware name: Radxa Rock 5A Board (DT)
>> [   88.479184] Call trace:
>> [   88.479406]  dump_backtrace.part.0+0xdc/0xf0
>> [   88.479796]  show_stack+0x18/0x30
>> [   88.480099]  dump_stack_lvl+0x68/0x84
>> [   88.480431]  dump_stack+0x18/0x34
>> [   88.480732]  hantro_av1_s_ctrl+0x7c/0xcc [hantro_vpu]
>> [   88.481211]  __v4l2_ctrl_handler_setup+0x120/0x154
>> [   88.481643]  v4l2_ctrl_handler_setup+0x2c/0x50
>> [   88.482043]  hantro_open+0x138/0x204 [hantro_vpu]
>> [   88.482490]  v4l2_open+0xa8/0x124
>> [   88.482794]  chrdev_open+0xc0/0x22c
>> [   88.483114]  do_dentry_open+0x13c/0x490
>> [   88.483464]  vfs_open+0x2c/0x40
>> [   88.483749]  path_openat+0x878/0xe50
>> [   88.484074]  do_filp_open+0x80/0x130
>> [   88.484399]  do_sys_openat2+0xb4/0x170
>> [   88.484736]  __arm64_sys_openat+0x60/0xb0
>> [   88.485097]  invoke_syscall+0x48/0x114
>> [   88.485437]  el0_svc_common.constprop.0+0x44/0xfc
>> [   88.485860]  do_el0_svc+0x3c/0xc0
>> [   88.486163]  el0_svc+0x2c/0x84
>> [   88.486441]  el0t_64_sync_handler+0xbc/0x140
>> [   88.486826]  el0t_64_sync+0x190/0x194
>>
>> Regards,
>> Benjamin
>>
>>> Thanks,
>>> Ezequiel
>>>
>>>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>>>> ---
>>>> version 4:
>>>> - This patch is the result of squashing "Save bit depth for AV1 decoder"
>>>>     and "Check AV1 bitstreams bit depth" of version 3 + adapation to
>>>>     "[PATCH v8 0/6] media: verisilicon: HEVC: fix 10bits handling" series.
>>>>
>>>>    .../media/platform/verisilicon/hantro_drv.c   | 36 +++++++++++++++++++
>>>>    .../media/platform/verisilicon/hantro_v4l2.c  |  4 +++
>>>>    2 files changed, 40 insertions(+)
>>>>
>>>> diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
>>>> index bc1a85456142..666cd46902da 100644
>>>> --- a/drivers/media/platform/verisilicon/hantro_drv.c
>>>> +++ b/drivers/media/platform/verisilicon/hantro_drv.c
>>>> @@ -275,7 +275,13 @@ static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
>>>>                   /* We only support profile 0 */
>>>>                   if (dec_params->profile != 0)
>>>>                           return -EINVAL;
>>>> +       } else if (ctrl->id == V4L2_CID_STATELESS_AV1_SEQUENCE) {
>>>> +               const struct v4l2_ctrl_av1_sequence *sequence = ctrl->p_new.p_av1_sequence;
>>>> +
>>>> +               if (sequence->bit_depth != 8 && sequence->bit_depth != 10)
>>>> +                       return -EINVAL;
>>>>           }
>>>> +
>>>>           return 0;
>>>>    }
>>>>
>>>> @@ -348,6 +354,30 @@ static int hantro_hevc_s_ctrl(struct v4l2_ctrl *ctrl)
>>>>           return 0;
>>>>    }
>>>>
>>>> +static int hantro_av1_s_ctrl(struct v4l2_ctrl *ctrl)
>>>> +{
>>>> +       struct hantro_ctx *ctx;
>>>> +
>>>> +       ctx = container_of(ctrl->handler,
>>>> +                          struct hantro_ctx, ctrl_handler);
>>>> +
>>>> +       switch (ctrl->id) {
>>>> +       case V4L2_CID_STATELESS_AV1_SEQUENCE:
>>>> +       {
>>>> +               int bit_depth = ctrl->p_new.p_av1_sequence->bit_depth;
>>>> +
>>>> +               if (ctx->bit_depth == bit_depth)
>>>> +                       return 0;
>>>> +
>>>> +               return hantro_reset_raw_fmt(ctx, bit_depth);
>>>> +       }
>>>> +       default:
>>>> +               return -EINVAL;
>>>> +       }
>>>> +
>>>> +       return 0;
>>>> +}
>>>> +
>>>>    static const struct v4l2_ctrl_ops hantro_ctrl_ops = {
>>>>           .try_ctrl = hantro_try_ctrl,
>>>>    };
>>>> @@ -365,6 +395,11 @@ static const struct v4l2_ctrl_ops hantro_hevc_ctrl_ops = {
>>>>           .s_ctrl = hantro_hevc_s_ctrl,
>>>>    };
>>>>
>>>> +static const struct v4l2_ctrl_ops hantro_av1_ctrl_ops = {
>>>> +       .try_ctrl = hantro_try_ctrl,
>>>> +       .s_ctrl = hantro_av1_s_ctrl,
>>>> +};
>>>> +
>>>>    #define HANTRO_JPEG_ACTIVE_MARKERS     (V4L2_JPEG_ACTIVE_MARKER_APP0 | \
>>>>                                            V4L2_JPEG_ACTIVE_MARKER_COM | \
>>>>                                            V4L2_JPEG_ACTIVE_MARKER_DQT | \
>>>> @@ -542,6 +577,7 @@ static const struct hantro_ctrl controls[] = {
>>>>                   .codec = HANTRO_AV1_DECODER,
>>>>                   .cfg = {
>>>>                           .id = V4L2_CID_STATELESS_AV1_SEQUENCE,
>>>> +                       .ops = &hantro_av1_ctrl_ops,
>>>>                   },
>>>>           }, {
>>>>                   .codec = HANTRO_AV1_DECODER,
>>>> diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
>>>> index 992c5baa929f..7e74e47c9a89 100644
>>>> --- a/drivers/media/platform/verisilicon/hantro_v4l2.c
>>>> +++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
>>>> @@ -86,6 +86,10 @@ hantro_check_depth_match(const struct hantro_fmt *fmt, int bit_depth)
>>>>           if (!fmt->match_depth && !fmt->postprocessed)
>>>>                   return true;
>>>>
>>>> +       /* 0 means default depth, which is 8 */
>>>> +       if (!bit_depth)
>>>> +               bit_depth = HANTRO_DEFAULT_BIT_DEPTH;
>>>> +
>>>>           fmt_depth = hantro_get_format_depth(fmt->fourcc);
>>>>
>>>>           /*
>>>> --
>>>> 2.34.1
>>>>
  

Patch

diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c
index bc1a85456142..666cd46902da 100644
--- a/drivers/media/platform/verisilicon/hantro_drv.c
+++ b/drivers/media/platform/verisilicon/hantro_drv.c
@@ -275,7 +275,13 @@  static int hantro_try_ctrl(struct v4l2_ctrl *ctrl)
 		/* We only support profile 0 */
 		if (dec_params->profile != 0)
 			return -EINVAL;
+	} else if (ctrl->id == V4L2_CID_STATELESS_AV1_SEQUENCE) {
+		const struct v4l2_ctrl_av1_sequence *sequence = ctrl->p_new.p_av1_sequence;
+
+		if (sequence->bit_depth != 8 && sequence->bit_depth != 10)
+			return -EINVAL;
 	}
+
 	return 0;
 }
 
@@ -348,6 +354,30 @@  static int hantro_hevc_s_ctrl(struct v4l2_ctrl *ctrl)
 	return 0;
 }
 
+static int hantro_av1_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct hantro_ctx *ctx;
+
+	ctx = container_of(ctrl->handler,
+			   struct hantro_ctx, ctrl_handler);
+
+	switch (ctrl->id) {
+	case V4L2_CID_STATELESS_AV1_SEQUENCE:
+	{
+		int bit_depth = ctrl->p_new.p_av1_sequence->bit_depth;
+
+		if (ctx->bit_depth == bit_depth)
+			return 0;
+
+		return hantro_reset_raw_fmt(ctx, bit_depth);
+	}
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static const struct v4l2_ctrl_ops hantro_ctrl_ops = {
 	.try_ctrl = hantro_try_ctrl,
 };
@@ -365,6 +395,11 @@  static const struct v4l2_ctrl_ops hantro_hevc_ctrl_ops = {
 	.s_ctrl = hantro_hevc_s_ctrl,
 };
 
+static const struct v4l2_ctrl_ops hantro_av1_ctrl_ops = {
+	.try_ctrl = hantro_try_ctrl,
+	.s_ctrl = hantro_av1_s_ctrl,
+};
+
 #define HANTRO_JPEG_ACTIVE_MARKERS	(V4L2_JPEG_ACTIVE_MARKER_APP0 | \
 					 V4L2_JPEG_ACTIVE_MARKER_COM | \
 					 V4L2_JPEG_ACTIVE_MARKER_DQT | \
@@ -542,6 +577,7 @@  static const struct hantro_ctrl controls[] = {
 		.codec = HANTRO_AV1_DECODER,
 		.cfg = {
 			.id = V4L2_CID_STATELESS_AV1_SEQUENCE,
+			.ops = &hantro_av1_ctrl_ops,
 		},
 	}, {
 		.codec = HANTRO_AV1_DECODER,
diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c
index 992c5baa929f..7e74e47c9a89 100644
--- a/drivers/media/platform/verisilicon/hantro_v4l2.c
+++ b/drivers/media/platform/verisilicon/hantro_v4l2.c
@@ -86,6 +86,10 @@  hantro_check_depth_match(const struct hantro_fmt *fmt, int bit_depth)
 	if (!fmt->match_depth && !fmt->postprocessed)
 		return true;
 
+	/* 0 means default depth, which is 8 */
+	if (!bit_depth)
+		bit_depth = HANTRO_DEFAULT_BIT_DEPTH;
+
 	fmt_depth = hantro_get_format_depth(fmt->fourcc);
 
 	/*