From: Brian Ho <brian@brkho.com>
Date: Fri, 19 Jun 2020 16:47:08 +0000 (-0400)
Subject: turnip: Fill out VkPhysicalDeviceSubgroupProperties
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cca9aa4dfd5b72f6ed4eb78c012772f78cd1a641;p=mesa.git

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>
---

diff --git a/src/freedreno/vulkan/tu_device.c b/src/freedreno/vulkan/tu_device.c
index 27bfb464a4a..d7e3363a44f 100644
--- a/src/freedreno/vulkan/tu_device.c
+++ b/src/freedreno/vulkan/tu_device.c
@@ -948,6 +948,16 @@ tu_GetPhysicalDeviceProperties2(VkPhysicalDevice physicalDevice,
          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;