drm/amdgpu: remove maximum BO size limitation v2

We can finally remove this now.

v2: remove now unused max_size variable as well.
Signed-off-by: NChristian König <christian.koenig@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c

@@ -49,7 +49,6 @@ int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
 				struct drm_gem_object **obj)
 {
 	struct amdgpu_bo *robj;
-	unsigned long max_size;
 	int r;
 
 	*obj = NULL;
@@ -58,17 +57,6 @@ int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
 		alignment = PAGE_SIZE;
 	}
 
-	if (!(initial_domain & (AMDGPU_GEM_DOMAIN_GDS | AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA))) {
-		/* Maximum bo size is the unpinned gtt size since we use the gtt to
-		 * handle vram to system pool migrations.
-		 */
-		max_size = adev->mc.gtt_size - adev->gart_pin_size;
-		if (size > max_size) {
-			DRM_DEBUG("Allocation size %ldMb bigger than %ldMb limit\n",
-				  size >> 20, max_size >> 20);
-			return -ENOMEM;
-		}
-	}
 retry:
 	r = amdgpu_bo_create(adev, size, alignment, kernel, initial_domain,
 			     flags, NULL, NULL, &robj);