rusticl: implement CL 3.1 device features

Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41358>

docs/relnotes/new_features.txt

@@ -12,3 +12,4 @@ VK_EXT_pipeline_protected_access on RADV
 VK_EXT_extended_dynamic_state3 on panvk
 GL_ARB_texture_query_lod on panfrost/v9+
 VK_KHR_maintenance11 on RADV
+OpenCL 3.1 support for rusticl on asahi, iris, radeonsi, llvmpipe and zink

src/gallium/frontends/rusticl/core/device.rs

@@ -497,7 +497,17 @@ impl DeviceBase {
     // TODO add CLC checks
     fn check_version(&mut self) {
         let exts: Vec<&str> = self.extension_string.split(' ').collect();
-        let mut res = CLVersion::Cl3_0;
+        let mut res = CLVersion::Cl3_1;
+
+        // CL 3.1 requires a bit more than we check here, but those are all features we support on
+        // every device anyway.
+        if !self.subgroup_shuffle_supported()
+            || !self.subgroup_shuffle_relative_supported()
+            || !self.subgroup_rotate_supported()
+            || !self.uuid_supported()
+        {
+            res = CLVersion::Cl3_0;
+        }
 
         #[allow(clippy::collapsible_if)]
         if self.embedded {
@@ -561,6 +571,11 @@ impl DeviceBase {
             res = val;
         }
 
+        if res >= CLVersion::Cl3_1 {
+            self.clc_versions
+                .push(mk_cl_version_ext(3, 1, 0, "OpenCL C"));
+        }
+
         if res >= CLVersion::Cl3_0 {
             self.clc_versions
                 .push(mk_cl_version_ext(3, 0, 0, "OpenCL C"));
@@ -732,7 +747,7 @@ impl DeviceBase {
             add_ext(1, 0, 0, "cl_khr_priority_hints");
         }
 
-        if self.screen().device_uuid().is_some() && self.screen().driver_uuid().is_some() {
+        if self.uuid_supported() {
             static_assert!(PIPE_UUID_SIZE == CL_UUID_SIZE_KHR);
             static_assert!(PIPE_LUID_SIZE == CL_LUID_SIZE_KHR);
 
@@ -1367,6 +1382,10 @@ impl DeviceBase {
     pub fn are_semaphores_supported(&self) -> bool {
         self.screen().caps().fence_signal && self.screen().has_semaphore_create()
     }
+
+    pub fn uuid_supported(&self) -> bool {
+        self.screen().device_uuid().is_some() && self.screen().driver_uuid().is_some()
+    }
 }
 
 impl Device {
@@ -1392,8 +1411,8 @@ impl Device {
             caps: DeviceCaps::new(&screen, &helper_ctx),
             helper_ctx: Mutex::new(helper_ctx),
             screen: screen,
-            cl_version: CLVersion::Cl3_0,
-            clc_version: CLVersion::Cl3_0,
+            cl_version: CLVersion::Cl3_1,
+            clc_version: CLVersion::Cl3_1,
             clc_versions: Vec::new(),
             device_type: 0,
             embedded: false,

src/gallium/frontends/rusticl/core/program.rs

@@ -309,6 +309,9 @@ fn prepare_options(options: &str, dev: &Device) -> Vec<CString> {
 
     res.iter()
         .filter_map(|&a| match a {
+            // CL3.1 doesn't add anything that's not already supported in clang, so just replace
+            // the argument with 3.0 so we'll be fine with an older version of clang.
+            "-cl-std=CL3.1" => Some("-cl-std=CL3.0"),
             "-cl-denorms-are-zero" => Some("-fdenormal-fp-math=positive-zero"),
             // We can ignore it as long as we don't support ifp
             "-cl-no-subgroup-ifp" => None,