drm/amdgpu/gmc9: change fb offset sequence so that used wider

Initialize the values earlier.
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

@@ -415,6 +415,11 @@ static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev,
 	amdgpu_vram_location(adev, &adev->mc, base);
 	adev->mc.gtt_base_align = 0;
 	amdgpu_gtt_location(adev, mc);
+	/* base offset of vram pages */
+	if (adev->flags & AMD_IS_APU)
+		adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
+	else
+		adev->vm_manager.vram_base_offset = 0;
 }
 
 /**
@@ -547,12 +552,6 @@ static int gmc_v9_0_vm_init(struct amdgpu_device *adev)
 		adev->vm_manager.num_level = 3;
 	amdgpu_vm_manager_init(adev);
 
-	/* base offset of vram pages */
-	if (adev->flags & AMD_IS_APU)
-		adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
-	else
-		adev->vm_manager.vram_base_offset = 0;
-
 	return 0;
 }