[PATCH 76/92] drm/i915: Generalize i915_gem_sanitize() to reset contexts

Chris Wilson chris at chris-wilson.co.uk
Mon Sep 17 11:10:36 UTC 2018


While we believe that we need to always reset the GPU to scrub the state
on transition to/from the driver, it is essential when we enable contexts.
Generalize the gen test to be on context-support instead.

References: d2b4b97933f5 ("drm/i915: Record the default hw state after reset upon load"
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 56f7d40358a5..f3b16933a32d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4539,7 +4539,8 @@ void i915_gem_sanitize(struct drm_i915_private *i915)
 	 * of the reset, so this could be applied to even earlier gen.
 	 */
 	err = -ENODEV;
-	if (INTEL_GEN(i915) >= 5 && intel_has_gpu_reset(i915))
+	if (DRIVER_CAPS(i915)->has_logical_contexts &&
+	    intel_has_gpu_reset(i915))
 		err = WARN_ON(intel_gpu_reset(i915, ALL_ENGINES));
 	if (!err)
 		intel_engines_sanitize(i915);
-- 
2.19.0



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