From 8529e3777b7644d41105a06141574a24795f8348 Mon Sep 17 00:00:00 2001 From: Nirmoy Das Date: Thu, 13 Jul 2023 17:01:41 +0200 Subject: [PATCH] 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 Cc: Jani Nikula Cc: Joonas Lahtinen Cc: Andi Shyti Cc: Andrzej Hajda Signed-off-by: Nirmoy Das Reviewed-by: Oak Zeng Reviewed-by: Andrzej Hajda Reviewed-by: Andi Shyti Link: https://patchwork.freedesktop.org/patch/msgid/20230713150142.12700-1-nirmoy.das@intel.com --- drivers/gpu/drm/i915/gt/intel_gt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index 7a008e8..c91d282 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -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); -- 2.7.4