drm/amdgpu: consistent name all GART related parts

Rename symbols from gtt_ to gart_ as appropriate.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index b4048a9..d578ca6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -57,11 +57,11 @@
  */
 
 /**
- * amdgpu_gart_set_defaults - set the default gtt_size
+ * amdgpu_gart_set_defaults - set the default gart_size
  *
  * @adev: amdgpu_device pointer
  *
- * Set the default gtt_size based on parameters and available VRAM.
+ * Set the default gart_size based on parameters and available VRAM.
  */
 void amdgpu_gart_set_defaults(struct amdgpu_device *adev)
 {
@@ -69,10 +69,10 @@ void amdgpu_gart_set_defaults(struct amdgpu_device *adev)
 	 * size equal to the 1024 or vram, whichever is larger.
 	 */
 	if (amdgpu_gart_size == -1)
-		adev->mc.gtt_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
+		adev->mc.gart_size = max((AMDGPU_DEFAULT_GTT_SIZE_MB << 20),
 					adev->mc.mc_vram_size);
 	else
-		adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
+		adev->mc.gart_size = (uint64_t)amdgpu_gart_size << 20;
 }
 
 /**
@@ -387,8 +387,8 @@ int amdgpu_gart_init(struct amdgpu_device *adev)
 	if (r)
 		return r;
 	/* Compute table size */
-	adev->gart.num_cpu_pages = adev->mc.gtt_size / PAGE_SIZE;
-	adev->gart.num_gpu_pages = adev->mc.gtt_size / AMDGPU_GPU_PAGE_SIZE;
+	adev->gart.num_cpu_pages = adev->mc.gart_size / PAGE_SIZE;
+	adev->gart.num_gpu_pages = adev->mc.gart_size / AMDGPU_GPU_PAGE_SIZE;
 	DRM_INFO("GART: num cpu pages %u, num gpu pages %u\n",
 		 adev->gart.num_cpu_pages, adev->gart.num_gpu_pages);