commit cca9aa4dfd5b72f6ed4eb78c012772f78cd1a641
author Brian Ho <brian@brkho.com> Fri Jun 19 12:47:08 2020 -0400
committer Marge Bot <eric+marge@anholt.net> Fri Jun 19 17:49:09 2020 +0000
tree f116d02416e9f20a8d29482c032adc60e0060084
parent 292ade3c9d2e27c6af136299656d4946910da034

turnip: Fill out VkPhysicalDeviceSubgroupProperties

This commit fills out VkPhysicalDeviceSubgroupProperties if present
in a VkPhysicalDeviceProperties2. The values here are simply pulled
from the blob.

Fixes some flakes in dEQP-VK.subgroups.* since dEQP was reading
uninitialized values of VkPhysicalDeviceSubgroupProperties.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5564>

src/freedreno/vulkan/tu_device.c

diff --git a/src/freedreno/vulkan/tu_device.c b/src/freedreno/vulkan/tu_device.c
index 27bfb46..d7e3363 100644
--- a/src/freedreno/vulkan/tu_device.c
+++ b/src/freedreno/vulkan/tu_device.c
@@ -948,6 +948,16 @@
          properties->filterMinmaxSingleComponentFormats = true;
          break;
       }
+      case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_PROPERTIES: {
+         VkPhysicalDeviceSubgroupProperties *properties =
+            (VkPhysicalDeviceSubgroupProperties *)ext;
+         properties->subgroupSize = 64;
+         properties->supportedStages = VK_SHADER_STAGE_COMPUTE_BIT;
+         properties->supportedOperations = VK_SUBGROUP_FEATURE_BASIC_BIT |
+                                           VK_SUBGROUP_FEATURE_VOTE_BIT;
+         properties->quadOperationsInAllStages = false;
+         break;
+      }
 
       default:
          break;