Re: [Intel-gfx] [PATCH] drm/i915: Set correct domains values at _i915_vma_move_to_active

[Andrzej Hajda <andrzej.hajda@intel.com>]

On 07.09.2022 19:26, Nirmoy Das wrote:
> Fix regression introduced by commit:
> "drm/i915: Individualize fences before adding to dma_resv obj"
> which sets obj->read_domains to 0 for both read and write paths.
> Also set obj->write_domain to 0 on read path which was removed by
> the commit.
>
> References: https://gitlab.freedesktop.org/drm/intel/-/issues/6639
> Fixes: 842d9346b2fd ("drm/i915: Individualize fences before adding to dma_resv obj")
> Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
> Cc: <stable@vger.kernel.org> # v5.16+
> Cc: Matthew Auld <matthew.auld@intel.com>
> Cc: Andrzej Hajda <andrzej.hajda@intel.com>

Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>

Regards
Andrzej
> ---
>   drivers/gpu/drm/i915/i915_vma.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
> index 260371716490..373582cfd8f3 100644
> --- a/drivers/gpu/drm/i915/i915_vma.c
> +++ b/drivers/gpu/drm/i915/i915_vma.c
> @@ -1882,12 +1882,13 @@ int _i915_vma_move_to_active(struct i915_vma *vma,
>   		enum dma_resv_usage usage;
>   		int idx;
>   
> -		obj->read_domains = 0;
>   		if (flags & EXEC_OBJECT_WRITE) {
>   			usage = DMA_RESV_USAGE_WRITE;
>   			obj->write_domain = I915_GEM_DOMAIN_RENDER;
> +			obj->read_domains = 0;
>   		} else {
>   			usage = DMA_RESV_USAGE_READ;
> +			obj->write_domain = 0;
>   		}
>   
>   		dma_fence_array_for_each(curr, idx, fence)