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

@@ -242,9 +242,9 @@ 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",
-	    __func__, vm, lvl + 1, start, end,
-	    idx, len, atomic_read(px_used(pd)));
+	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)));
 
 	do {
@@ -252,8 +252,8 @@ 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",
-			    __func__, vm, lvl + 1, idx, start, end);
+			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);
 			start += (u64)I915_PDES << gen8_pd_shift(lvl);
@@ -270,10 +270,10 @@ 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",
-			    __func__, vm, lvl, start, end,
-			    gen8_pd_index(start, 0), count,
-			    atomic_read(&pt->used));
+			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));
 			GEM_BUG_ON(!count || count >= atomic_read(&pt->used));
 
 			num_ptes = count;
@@ -325,9 +325,9 @@ 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",
-	    __func__, vm, lvl + 1, *start, end,
-	    idx, len, atomic_read(px_used(pd)));
+	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));
 
 	spin_lock(&pd->lock);
@@ -338,8 +338,8 @@ 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",
-			    __func__, vm, lvl + 1, idx);
+			GTT_TRACE("%s(%p):{ lvl:%d, idx:%d } allocating new tree\n",
+				  __func__, vm, lvl + 1, idx);
 
 			pt = stash->pt[!!lvl];
 			__i915_gem_object_pin_pages(pt->base);
@@ -369,10 +369,10 @@ 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",
-			    __func__, vm, lvl, *start, end,
-			    gen8_pd_index(*start, 0), count,
-			    atomic_read(&pt->used));
+			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));
 
 			atomic_add(count, &pt->used);
 			/* All other pdes may be simultaneously removed */

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 */