[Intel-gfx] [PATCH RESEND] drm/i915: Fix display problems after resume

[Matthew Auld]

Hi Thomas,

On 05/10/2022 13:11, Thomas Hellström wrote:
> Commit 39a2bd34c933 ("drm/i915: Use the vma resource as argument for gtt
> binding / unbinding") introduced a regression that due to the vma resource
> tracking of the binding state, dpt ptes were not correctly repopulated.
> Fix this by clearing the vma resource state before repopulating.
> The state will subsequently be restored by the bind_vma operation.
> 
> Fixes: 39a2bd34c933 ("drm/i915: Use the vma resource as argument for gtt binding / unbinding")
> Signed-off-by: Thomas Hellström <thomas.hellstrom at linux.intel.com>
> Link: https://patchwork.freedesktop.org/patch/msgid/20220912121957.31310-1-thomas.hellstrom@linux.intel.com
> Cc: Matthew Auld <matthew.auld at intel.com>
> Cc: intel-gfx at lists.freedesktop.org
> Cc: <stable at vger.kernel.org> # v5.18+
> Reported-and-tested-by: Kevin Boulain <kevinboulain at gmail.com>
> Tested-by: David de Sousa <davidesousa at gmail.com>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>