Mesa (master): radv: disable stippledBresenhamLines on GFX9

[GitLab Mirror]

Module: Mesa
Branch: master
Commit: ef06f1bb03c84754438621a4cce9d4cc063007f7
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ef06f1bb03c84754438621a4cce9d4cc063007f7

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Mon Dec 28 08:44:03 2020 +0100

radv: disable stippledBresenhamLines on GFX9

Some CTS fail on Vega10 but work on Raven.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8242>

---

 src/amd/vulkan/radv_device.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 55626da2636..94262b32256 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -1365,7 +1365,10 @@ void radv_GetPhysicalDeviceFeatures2(
 			features->bresenhamLines = true;
 			features->smoothLines = false;
 			features->stippledRectangularLines = false;
-			features->stippledBresenhamLines = true;
+			/* FIXME: Some stippled Bresenham CTS fails on Vega10
+			 * but work on Raven.
+			 */
+			features->stippledBresenhamLines = pdevice->rad_info.chip_class != GFX9;
 			features->stippledSmoothLines = false;
 			break;
 		}