Commit 8529e377 authored by Nirmoy Das's avatar Nirmoy Das
Browse files

drm/i915/gt: Do not use stolen on MTL 



Use smem on MTL due to a HW bug in MTL that prevents
reading from stolen memory using LMEM BAR.

Cc: Oak Zeng <oak.zeng@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: default avatarNirmoy Das <nirmoy.das@intel.com>
Reviewed-by: default avatarOak Zeng <oak.zeng@intel.com>
Reviewed-by: default avatarAndrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: default avatarAndi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230713150142.12700-1-nirmoy.das@intel.com
parent 43aa755e

drivers/gpu/drm/i915/gt/intel_gt.c

+1 −1
Original line number Diff line number Diff line
@@ -466,7 +466,7 @@ static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size) 
	obj = i915_gem_object_create_lmem(i915, size,

					  I915_BO_ALLOC_VOLATILE |

					  I915_BO_ALLOC_GPU_ONLY);

	if (IS_ERR(obj))

	if (IS_ERR(obj) && !IS_METEORLAKE(i915)) /* Wa_22018444074 */

		obj = i915_gem_object_create_stolen(i915, size);

	if (IS_ERR(obj))

		obj = i915_gem_object_create_internal(i915, size);