Re: [PATCH] drm/amdgpu: fix limiting AV1 to the first instance on VCN3

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Hi Christian,

The patch is: Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx>

Could you add a reference to https://gitlab.freedesktop.org/drm/amd/-/issues/2037 in the commit message?

Thanks,
Pierre-Eric

On 03/06/2022 12:21, Christian König wrote:
> The job is not yet initialized here.
> 
> Signed-off-by: Christian König <christian.koenig@xxxxxxx>
> Fixes: 1027d5d791b7 ("drm/amdgpu: use job and ib structures directly in CS parsers")
> ---
>  drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 17 +++++++----------
>  1 file changed, 7 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
> index 3cabceee5f57..39405f0db824 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
> @@ -1761,23 +1761,21 @@ static const struct amdgpu_ring_funcs vcn_v3_0_dec_sw_ring_vm_funcs = {
>  	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
>  };
>  
> -static int vcn_v3_0_limit_sched(struct amdgpu_cs_parser *p,
> -				struct amdgpu_job *job)
> +static int vcn_v3_0_limit_sched(struct amdgpu_cs_parser *p)
>  {
>  	struct drm_gpu_scheduler **scheds;
>  
>  	/* The create msg must be in the first IB submitted */
> -	if (atomic_read(&job->base.entity->fence_seq))
> +	if (atomic_read(&p->entity->fence_seq))
>  		return -EINVAL;
>  
>  	scheds = p->adev->gpu_sched[AMDGPU_HW_IP_VCN_DEC]
>  		[AMDGPU_RING_PRIO_DEFAULT].sched;
> -	drm_sched_entity_modify_sched(job->base.entity, scheds, 1);
> +	drm_sched_entity_modify_sched(p->entity, scheds, 1);
>  	return 0;
>  }
>  
> -static int vcn_v3_0_dec_msg(struct amdgpu_cs_parser *p, struct amdgpu_job *job,
> -			    uint64_t addr)
> +static int vcn_v3_0_dec_msg(struct amdgpu_cs_parser *p, uint64_t addr)
>  {
>  	struct ttm_operation_ctx ctx = { false, false };
>  	struct amdgpu_bo_va_mapping *map;
> @@ -1848,7 +1846,7 @@ static int vcn_v3_0_dec_msg(struct amdgpu_cs_parser *p, struct amdgpu_job *job,
>  		if (create[0] == 0x7 || create[0] == 0x10 || create[0] == 0x11)
>  			continue;
>  
> -		r = vcn_v3_0_limit_sched(p, job);
> +		r = vcn_v3_0_limit_sched(p);
>  		if (r)
>  			goto out;
>  	}
> @@ -1862,7 +1860,7 @@ static int vcn_v3_0_ring_patch_cs_in_place(struct amdgpu_cs_parser *p,
>  					   struct amdgpu_job *job,
>  					   struct amdgpu_ib *ib)
>  {
> -	struct amdgpu_ring *ring = to_amdgpu_ring(job->base.sched);
> +	struct amdgpu_ring *ring = to_amdgpu_ring(p->entity->rq->sched);
>  	uint32_t msg_lo = 0, msg_hi = 0;
>  	unsigned i;
>  	int r;
> @@ -1881,8 +1879,7 @@ static int vcn_v3_0_ring_patch_cs_in_place(struct amdgpu_cs_parser *p,
>  			msg_hi = val;
>  		} else if (reg == PACKET0(p->adev->vcn.internal.cmd, 0) &&
>  			   val == 0) {
> -			r = vcn_v3_0_dec_msg(p, job,
> -					     ((u64)msg_hi) << 32 | msg_lo);
> +			r = vcn_v3_0_dec_msg(p, ((u64)msg_hi) << 32 | msg_lo);
>  			if (r)
>  				return r;
>  		}
> 



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