1 files changed, 22 insertions, 17 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_user.c b/drivers/gpu/drm/i915/gt/intel_engine_user.c
index 118164ddbb2e..833987015b8b 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_user.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_user.c
@@ -41,12 +41,15 @@ void intel_engine_add_user(struct intel_engine_cs *engine)
 	llist_add(&engine->uabi_llist, &engine->i915->uabi_engines_llist);
 }
 
-static const u8 uabi_classes[] = {
+#define I915_NO_UABI_CLASS ((u16)(-1))
+
+static const u16 uabi_classes[] = {
 	[RENDER_CLASS] = I915_ENGINE_CLASS_RENDER,
 	[COPY_ENGINE_CLASS] = I915_ENGINE_CLASS_COPY,
 	[VIDEO_DECODE_CLASS] = I915_ENGINE_CLASS_VIDEO,
 	[VIDEO_ENHANCEMENT_CLASS] = I915_ENGINE_CLASS_VIDEO_ENHANCE,
 	[COMPUTE_CLASS] = I915_ENGINE_CLASS_COMPUTE,
+	[OTHER_CLASS] = I915_NO_UABI_CLASS, /* Not exposed to users, no uabi class. */
 };
 
 static int engine_cmp(void *priv, const struct list_head *A,
@@ -200,6 +203,7 @@ static void engine_rename(struct intel_engine_cs *engine, const char *name, u16
 
 void intel_engines_driver_register(struct drm_i915_private *i915)
 {
+	u16 name_instance, other_instance = 0;
 	struct legacy_ring ring = {};
 	struct list_head *it, *next;
 	struct rb_node **p, *prev;
@@ -216,27 +220,28 @@ void intel_engines_driver_register(struct drm_i915_private *i915)
 		if (intel_gt_has_unrecoverable_error(engine->gt))
 			continue; /* ignore incomplete engines */
 
-		/*
-		 * We don't want to expose the GSC engine to the users, but we
-		 * still rename it so it is easier to identify in the debug logs
-		 */
-		if (engine->id == GSC0) {
-			engine_rename(engine, "gsc", 0);
-			continue;
-		}
-
 		GEM_BUG_ON(engine->class >= ARRAY_SIZE(uabi_classes));
 		engine->uabi_class = uabi_classes[engine->class];
+		if (engine->uabi_class == I915_NO_UABI_CLASS) {
+			name_instance = other_instance++;
+		} else {
+			GEM_BUG_ON(engine->uabi_class >=
+				   ARRAY_SIZE(i915->engine_uabi_class_count));
+			name_instance =
+				i915->engine_uabi_class_count[engine->uabi_class]++;
+		}
+		engine->uabi_instance = name_instance;
 
-		GEM_BUG_ON(engine->uabi_class >=
-			   ARRAY_SIZE(i915->engine_uabi_class_count));
-		engine->uabi_instance =
-			i915->engine_uabi_class_count[engine->uabi_class]++;
-
-		/* Replace the internal name with the final user facing name */
+		/*
+		 * Replace the internal name with the final user and log facing
+		 * name.
+		 */
 		engine_rename(engine,
 			      intel_engine_class_repr(engine->class),
-			      engine->uabi_instance);
+			      name_instance);
+
+		if (engine->uabi_class == I915_NO_UABI_CLASS)
+			continue;
 
 		rb_link_node(&engine->uabi_node, prev, p);
 		rb_insert_color(&engine->uabi_node, &i915->uabi_engines);