intel/common: Implement the Xe functions for intel_engine

Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21699>

src/intel/common/intel_engine.c

@@ -27,6 +27,7 @@
 
 #include "intel_engine.h"
 #include "i915/intel_engine.h"
+#include "xe/intel_engine.h"
 
 struct intel_query_engine_info *
 intel_engine_get_info(int fd, enum intel_kmd_type type)
@@ -34,6 +35,8 @@ intel_engine_get_info(int fd, enum intel_kmd_type type)
    switch (type) {
    case INTEL_KMD_TYPE_I915:
       return i915_engine_get_info(fd);
+   case INTEL_KMD_TYPE_XE:
+      return xe_engine_get_info(fd);
    default:
       unreachable("Missing");
       return NULL;

src/intel/common/meson.build

@@ -23,6 +23,8 @@ files_libintel_common = files(
   'i915/intel_engine.h',
   'i915/intel_gem.c',
   'i915/intel_gem.h',
+  'xe/intel_engine.c',
+  'xe/intel_engine.h',
   'intel_aux_map.c',
   'intel_aux_map.h',
   'intel_buffer_alloc.h',

src/intel/common/xe/intel_engine.c

@@ -0,0 +1,92 @@
+/*
+ * Copyright © 2023 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "xe/intel_engine.h"
+
+#include <stdlib.h>
+
+#include "common/intel_gem.h"
+
+#include "drm-uapi/xe_drm.h"
+
+static enum intel_engine_class
+xe_engine_class_to_intel(uint16_t xe)
+{
+   switch (xe) {
+   case DRM_XE_ENGINE_CLASS_RENDER:
+      return INTEL_ENGINE_CLASS_RENDER;
+   case DRM_XE_ENGINE_CLASS_COPY:
+      return INTEL_ENGINE_CLASS_COPY;
+   case DRM_XE_ENGINE_CLASS_VIDEO_DECODE:
+      return INTEL_ENGINE_CLASS_VIDEO;
+   case DRM_XE_ENGINE_CLASS_VIDEO_ENHANCE:
+      return INTEL_ENGINE_CLASS_VIDEO_ENHANCE;
+   case DRM_XE_ENGINE_CLASS_COMPUTE:
+      return INTEL_ENGINE_CLASS_COMPUTE;
+   default:
+      return INTEL_ENGINE_CLASS_INVALID;
+   }
+}
+
+struct intel_query_engine_info *
+xe_engine_get_info(int fd)
+{
+   struct drm_xe_device_query query = {
+      .query = DRM_XE_DEVICE_QUERY_ENGINES,
+   };
+   if (intel_ioctl(fd, DRM_IOCTL_XE_DEVICE_QUERY, &query))
+      return NULL;
+
+   struct drm_xe_engine_class_instance *xe_engines = calloc(1, query.size);
+   if (!xe_engines)
+      return NULL;
+
+   query.data = (uintptr_t)xe_engines;
+   if (intel_ioctl(fd, DRM_IOCTL_XE_DEVICE_QUERY, &query))
+      goto error_free_xe_engines;
+
+   const uint32_t engines_count = query.size / sizeof(*xe_engines);
+   struct intel_query_engine_info *intel_engines_info;
+   intel_engines_info = calloc(1, sizeof(*intel_engines_info) +
+                               sizeof(*intel_engines_info->engines) *
+                               engines_count);
+   if (!intel_engines_info) {
+      goto error_free_xe_engines;
+      return NULL;
+   }
+
+   for (uint32_t i = 0; i < engines_count; i++) {
+      struct drm_xe_engine_class_instance *xe_engine = &xe_engines[i];
+      struct intel_engine_class_instance *intel_engine = &intel_engines_info->engines[i];
+
+      intel_engine->engine_class = xe_engine_class_to_intel(xe_engine->engine_class);
+      intel_engine->engine_instance = xe_engine->engine_instance;
+   }
+
+   intel_engines_info->num_engines = engines_count;
+   free(xe_engines);
+   return intel_engines_info;
+
+error_free_xe_engines:
+   free(xe_engines);
+   return NULL;
+}

src/intel/common/xe/intel_engine.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright © 2023 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#pragma once
+
+struct intel_query_engine_info *
+xe_engine_get_info(int fd);