Module: Mesa
Branch: master
Commit: 3c1275ccae620888108206799403999c1fc7e8b3
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=3c1275ccae620888108206799403999c1fc7e8b3

Author: Samuel Pitoiset <[email protected]>
Date:   Tue Jan  5 16:47:17 2021 +0100

radv: enable DCC for MSAA on GFX10+

It should work fine now.

This gives +1-2% improvements with Control MSAA (2x and 4x)
on Sienna.

Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8413>

---

 src/amd/vulkan/radv_image.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/amd/vulkan/radv_image.c b/src/amd/vulkan/radv_image.c
index 1573b3edc2e..90409792089 100644
--- a/src/amd/vulkan/radv_image.c
+++ b/src/amd/vulkan/radv_image.c
@@ -193,12 +193,10 @@ radv_use_dcc_for_image(struct radv_device *device,
        if (pCreateInfo->arrayLayers > 1 && pCreateInfo->mipLevels > 1)
                return false;
 
-       /* FIXME: DCC for MSAA with 4x and 8x samples doesn't work yet, while
-        * 2x can be enabled with an option.
-        */
-       if (pCreateInfo->samples > 2 ||
-           (pCreateInfo->samples == 2 &&
-            !device->physical_device->dcc_msaa_allowed))
+       /* TODO: Fix and enable DCC MSAA on older chips. */
+       if (pCreateInfo->samples > 1 &&
+           !device->physical_device->dcc_msaa_allowed &&
+            device->physical_device->rad_info.chip_class < GFX10)
                return false;
 
        /* Determine if the formats are DCC compatible. */

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