[Intel-gfx] [PATCH 01/21] drm/i915/gt: Mark legacy ring context as lost

[Matthew Brost]

On Thu, Dec 10, 2020 at 08:02:20AM +0000, Chris Wilson wrote:
> When we reset the legacy ring context, due to potential corruption over
> suspend/resume, remove the valid bit so that we avoid loading garbage.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Reviewed-by: Matthew Brost <matthew.brost at intel.com>

> ---
>  drivers/gpu/drm/i915/gt/intel_ring_submission.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
> index a41b43f445b8..1959e3e5b8e9 100644
> --- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c
> +++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
> @@ -602,6 +602,7 @@ static int ring_context_pin(struct intel_context *ce, void *unused)
>  static void ring_context_reset(struct intel_context *ce)
>  {
>  	intel_ring_reset(ce->ring, ce->ring->emit);
> +	__clear_bit(CONTEXT_VALID_BIT, &ce->flags);
>  }
>  
>  static const struct intel_context_ops ring_context_ops = {
> -- 
> 2.20.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx