drm/i915: Ignore GPU wedged errors while pinning scanout buffers

Failing to pin a scanout buffer will most likely lead to a black
screen, so if the GPU is wedged, then just let the pin happen and hope
that things work out OK.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index a087e1b..d5c7c7b 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3019,7 +3019,7 @@ i915_gem_object_set_to_display_plane(struct drm_i915_gem_object *obj,
        /* Currently, we are always called from an non-interruptible context. */
        if (pipelined != obj->ring) {
                ret = i915_gem_object_wait_rendering(obj);
-               if (ret)
+               if (ret == -ERESTARTSYS)
                        return ret;
        }