drm/i915: Rename conditional GEM execution macros

After a brief discussion, we settled on a naming convention for the
conditional GEM debugging data that should be clearer to the casual
user: GEM_DEBUG

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207102319.10910-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

drivers/gpu/drm/i915/i915_gem.h

@@ -29,17 +29,17 @@
 #define GEM_BUG_ON(expr) BUG_ON(expr)
 #define GEM_WARN_ON(expr) WARN_ON(expr)
 
-#define GEM_BUG_ONLY(expr) expr
-#define GEM_BUG_ONLY_DECLARE(var) var
-#define GEM_BUG_ONLY_ON(expr) GEM_BUG_ON(expr)
+#define GEM_DEBUG_DECL(var) var
+#define GEM_DEBUG_EXEC(expr) expr
+#define GEM_DEBUG_BUG_ON(expr) GEM_BUG_ON(expr)
 
 #else
 #define GEM_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr)
 #define GEM_WARN_ON(expr) (BUILD_BUG_ON_INVALID(expr), 0)
 
-#define GEM_BUG_ONLY(expr) do { } while (0)
-#define GEM_BUG_ONLY_DECLARE(var)
-#define GEM_BUG_ONLY_ON(expr)
+#define GEM_DEBUG_DECL(var)
+#define GEM_DEBUG_EXEC(expr) do { } while (0)
+#define GEM_DEBUG_BUG_ON(expr)
 #endif
 
 #define I915_NUM_ENGINES 5

drivers/gpu/drm/i915/intel_lrc.c

@@ -351,7 +351,7 @@ static void execlists_submit_ports(struct intel_engine_cs *engine)
 		execlists_context_status_change(port[0].request,
 						INTEL_CONTEXT_SCHEDULE_IN);
 	desc[0] = execlists_update_context(port[0].request);
-	GEM_BUG_ONLY(port[0].context_id = upper_32_bits(desc[0]));
+	GEM_DEBUG_EXEC(port[0].context_id = upper_32_bits(desc[0]));
 	port[0].count++;
 
 	if (port[1].request) {
@@ -359,7 +359,7 @@ static void execlists_submit_ports(struct intel_engine_cs *engine)
 		execlists_context_status_change(port[1].request,
 						INTEL_CONTEXT_SCHEDULE_IN);
 		desc[1] = execlists_update_context(port[1].request);
-		GEM_BUG_ONLY(port[1].context_id = upper_32_bits(desc[1]));
+		GEM_DEBUG_EXEC(port[1].context_id = upper_32_bits(desc[1]));
 		port[1].count = 1;
 	} else {
 		desc[1] = 0;
@@ -583,8 +583,8 @@ static void intel_lrc_irq_handler(unsigned long data)
 				continue;
 
 			/* Check the context/desc id for this event matches */
-			GEM_BUG_ONLY_ON(readl(buf + 2 * idx + 1) !=
-					port[0].context_id);
+			GEM_DEBUG_BUG_ON(readl(buf + 2 * idx + 1) !=
+					 port[0].context_id);
 
 			GEM_BUG_ON(port[0].count == 0);
 			if (--port[0].count == 0) {

drivers/gpu/drm/i915/intel_ringbuffer.c

@@ -2284,7 +2284,7 @@ int intel_ring_begin(struct drm_i915_gem_request *req, int num_dwords)
 
 	ring->space -= bytes;
 	GEM_BUG_ON(ring->space < 0);
-	GEM_BUG_ONLY(ring->advance = ring->tail + bytes);
+	GEM_DEBUG_EXEC(ring->advance = ring->tail + bytes);
 	return 0;
 }
 

drivers/gpu/drm/i915/intel_ringbuffer.h

@@ -144,7 +144,7 @@ struct intel_ring {
 
 	u32 head;
 	u32 tail;
-	GEM_BUG_ONLY_DECLARE(u32 advance);
+	GEM_DEBUG_DECL(u32 advance);
 
 	int space;
 	int size;
@@ -381,7 +381,7 @@ struct intel_engine_cs {
 	struct execlist_port {
 		struct drm_i915_gem_request *request;
 		unsigned int count;
-		GEM_BUG_ONLY_DECLARE(u32 context_id);
+		GEM_DEBUG_DECL(u32 context_id);
 	} execlist_port[2];
 	struct rb_root execlist_queue;
 	struct rb_node *execlist_first;
@@ -519,7 +519,7 @@ static inline void intel_ring_advance(struct intel_ring *ring)
 	 * reserved for the command packet (i.e. the value passed to
 	 * intel_ring_begin()).
 	 */
-	GEM_BUG_ONLY_ON(ring->tail != ring->advance);
+	GEM_DEBUG_BUG_ON(ring->tail != ring->advance);
 }
 
 static inline u32 intel_ring_offset(struct intel_ring *ring, void *addr)