drm/i915/gt: rename DBG() to GTT_TRACE()

intel_gtt.h is indirectly included absolutely everywhere in the
driver. DBG() is too short a name. Rename it GTT_TRACE() after
GEM_TRACE().
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230911123305.1682554-1-jani.nikula@intel.com

drivers/gpu/drm/i915/gt/gen8_ppgtt.c

@@ -242,7 +242,7 @@ static u64 __gen8_ppgtt_clear(struct i915_address_space * const vm,
 	GEM_BUG_ON(end > vm->total >> GEN8_PTE_SHIFT);
 
 	len = gen8_pd_range(start, end, lvl--, &idx);
-	DBG("%s(%p):{ lvl:%d, start:%llx, end:%llx, idx:%d, len:%d, used:%d }\n",
+	GTT_TRACE("%s(%p):{ lvl:%d, start:%llx, end:%llx, idx:%d, len:%d, used:%d }\n",
 		  __func__, vm, lvl + 1, start, end,
 		  idx, len, atomic_read(px_used(pd)));
 	GEM_BUG_ON(!len || len >= atomic_read(px_used(pd)));
@@ -252,7 +252,7 @@ static u64 __gen8_ppgtt_clear(struct i915_address_space * const vm,
 
 		if (atomic_fetch_inc(&pt->used) >> gen8_pd_shift(1) &&
 		    gen8_pd_contains(start, end, lvl)) {
-			DBG("%s(%p):{ lvl:%d, idx:%d, start:%llx, end:%llx } removing pd\n",
+			GTT_TRACE("%s(%p):{ lvl:%d, idx:%d, start:%llx, end:%llx } removing pd\n",
 				  __func__, vm, lvl + 1, idx, start, end);
 			clear_pd_entry(pd, idx, scratch);
 			__gen8_ppgtt_cleanup(vm, as_pd(pt), I915_PDES, lvl);
@@ -270,7 +270,7 @@ static u64 __gen8_ppgtt_clear(struct i915_address_space * const vm,
 			u64 *vaddr;
 
 			count = gen8_pt_count(start, end);
-			DBG("%s(%p):{ lvl:%d, start:%llx, end:%llx, idx:%d, len:%d, used:%d } removing pte\n",
+			GTT_TRACE("%s(%p):{ lvl:%d, start:%llx, end:%llx, idx:%d, len:%d, used:%d } removing pte\n",
 				  __func__, vm, lvl, start, end,
 				  gen8_pd_index(start, 0), count,
 				  atomic_read(&pt->used));
@@ -325,7 +325,7 @@ static void __gen8_ppgtt_alloc(struct i915_address_space * const vm,
 	GEM_BUG_ON(end > vm->total >> GEN8_PTE_SHIFT);
 
 	len = gen8_pd_range(*start, end, lvl--, &idx);
-	DBG("%s(%p):{ lvl:%d, start:%llx, end:%llx, idx:%d, len:%d, used:%d }\n",
+	GTT_TRACE("%s(%p):{ lvl:%d, start:%llx, end:%llx, idx:%d, len:%d, used:%d }\n",
 		  __func__, vm, lvl + 1, *start, end,
 		  idx, len, atomic_read(px_used(pd)));
 	GEM_BUG_ON(!len || (idx + len - 1) >> gen8_pd_shift(1));
@@ -338,7 +338,7 @@ static void __gen8_ppgtt_alloc(struct i915_address_space * const vm,
 		if (!pt) {
 			spin_unlock(&pd->lock);
 
-			DBG("%s(%p):{ lvl:%d, idx:%d } allocating new tree\n",
+			GTT_TRACE("%s(%p):{ lvl:%d, idx:%d } allocating new tree\n",
 				  __func__, vm, lvl + 1, idx);
 
 			pt = stash->pt[!!lvl];
@@ -369,7 +369,7 @@ static void __gen8_ppgtt_alloc(struct i915_address_space * const vm,
 		} else {
 			unsigned int count = gen8_pt_count(*start, end);
 
-			DBG("%s(%p):{ lvl:%d, start:%llx, end:%llx, idx:%d, len:%d, used:%d } inserting pte\n",
+			GTT_TRACE("%s(%p):{ lvl:%d, start:%llx, end:%llx, idx:%d, len:%d, used:%d } inserting pte\n",
 				  __func__, vm, lvl, *start, end,
 				  gen8_pd_index(*start, 0), count,
 				  atomic_read(&pt->used));

drivers/gpu/drm/i915/gt/intel_gtt.h

@@ -35,9 +35,9 @@
 #define I915_GFP_ALLOW_FAIL (GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN)
 
 #if IS_ENABLED(CONFIG_DRM_I915_TRACE_GTT)
-#define DBG(...) trace_printk(__VA_ARGS__)
+#define GTT_TRACE(...) trace_printk(__VA_ARGS__)
 #else
-#define DBG(...)
+#define GTT_TRACE(...)
 #endif
 
 #define NALLOC 3 /* 1 normal, 1 for concurrent threads, 1 for preallocation */