The idea is ported from RadeonSI, but using 512x512 instead of
256x256 seems slightly better. This improves dota2 performance
by +2%.
Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
src/amd/vulkan/radv_image.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/src/amd/vulkan/radv_image.c b/src/amd/vulkan/radv_image.c
index c241e369b9..1bf2fa12ed 100644
--- a/src/amd/vulkan/radv_image.c
+++ b/src/amd/vulkan/radv_image.c
@@ -805,6 +805,16 @@ radv_image_alloc_htile(struct radv_image *image)
static inline bool
radv_image_can_enable_dcc_or_cmask(struct radv_image *image)
{
+ if (image->info.samples <= 1 &&
+ image->info.width <= 512 && image->info.height <= 512) {
+ /* Do not enable CMASK or DCC for small surfaces where the cost
+ * of the eliminate pass can be higher than the benefit of fast
+ * clear. RadeonSI does this, but the image threshold is
+ * different.
+ */
+ return false;
+ }
+
return image->usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT &&
(image->exclusive || image->queue_family_mask == 1);
}
--
2.15.0
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
