[Intel-gfx] [PATCH 7/7] drm/i915/selftests: check for missing aperture

[Chris Wilson]

Quoting Matthew Auld (2019-10-29 09:58:56)
> We may be missing support for the mappable aperture on some platforms.
> 
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> ---
>  .../drm/i915/gem/selftests/i915_gem_coherency.c    |  5 ++++-
>  drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c |  6 ++++++
>  drivers/gpu/drm/i915/gt/selftest_hangcheck.c       | 14 ++++++++++----
>  drivers/gpu/drm/i915/selftests/i915_gem.c          |  4 ++++
>  drivers/gpu/drm/i915/selftests/i915_gem_gtt.c      |  3 +++
>  5 files changed, 27 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
> index 0a195e5b98e6..279e9047bc6d 100644
> --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
> +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
> @@ -250,7 +250,10 @@ static bool always_valid(struct context *ctx)
>  
>  static bool needs_fence_registers(struct context *ctx)
>  {

I vote for a struct intel_gt *gt = ctx->engine->gt;

> -       return !intel_gt_is_wedged(ctx->engine->gt);
> +       if (intel_gt_is_wedged(ctx->engine->gt))
> +               return false;
> +
> +       return ctx->engine->gt->ggtt->num_fences;
>  }

Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris