The barrier here is not required - we apply the barrier before the range is ever reused by the GPU instead.
Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Matthew Auld <[email protected]> --- drivers/gpu/drm/i915/i915_gem_gtt.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 372d9f56c91d..83c367814496 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -2178,7 +2178,6 @@ static void gen8_ggtt_clear_range(struct i915_address_space *vm, I915_CACHE_LLC); for (i = 0; i < num_entries; i++) gen8_set_pte(>t_base[i], scratch_pte); - readl(gtt_base); } static void gen6_ggtt_clear_range(struct i915_address_space *vm, @@ -2203,7 +2202,6 @@ static void gen6_ggtt_clear_range(struct i915_address_space *vm, for (i = 0; i < num_entries; i++) iowrite32(scratch_pte, >t_base[i]); - readl(gtt_base); } static void i915_ggtt_insert_page(struct i915_address_space *vm, @@ -2227,7 +2225,6 @@ static void i915_ggtt_insert_entries(struct i915_address_space *vm, AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY; intel_gtt_insert_sg_entries(pages, start >> PAGE_SHIFT, flags); - } static void i915_ggtt_clear_range(struct i915_address_space *vm, -- 2.11.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
