[wgpu-hal] Upgrade to ash 0.38 (gfx-rs#5504)

Author: MarijnS95

wgpu-hal/src/vulkan/adapter.rs

@@ -1443,6 +1443,9 @@ impl super::Instance {
                 }),
             image_format_list: phd_capabilities.device_api_version >= vk::API_VERSION_1_2
                 || phd_capabilities.supports_extension(khr::image_format_list::NAME),
+            subgroup_size_control: phd_features
+                .subgroup_size_control
+                .map_or(false, |ext| ext.subgroup_size_control == vk::TRUE),
         };
         let capabilities = crate::Capabilities {
             limits: phd_capabilities.to_wgpu_limits(),

wgpu-hal/src/vulkan/device.rs

@@ -772,7 +772,8 @@ impl super::Device {
         };
 
         let mut flags = vk::PipelineShaderStageCreateFlags::empty();
-        if self.shared.features.contains(wgt::Features::SUBGROUP) {
+        // if self.shared.features.contains(wgt::Features::SUBGROUP) {
+        if self.shared.private_caps.subgroup_size_control {
             flags |= vk::PipelineShaderStageCreateFlags::ALLOW_VARYING_SUBGROUP_SIZE
         }
 

wgpu-hal/src/vulkan/mod.rs

@@ -347,6 +347,7 @@ struct PrivateCapabilities {
     robust_image_access2: bool,
     zero_initialize_workgroup_memory: bool,
     image_format_list: bool,
+    subgroup_size_control: bool,
 }
 
 bitflags::bitflags!(
@@ -924,6 +925,7 @@ impl crate::Queue for Queue {
                 signal_semaphores.push(raw);
                 signal_values.push(signal_value);
             }
+
             Fence::FencePool {
                 ref mut active,
                 ref mut free,