drm/radeon/kms: set the MSB of the HDP slice size

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/evergreen.c

@@ -1147,7 +1147,7 @@ static void evergreen_mc_program(struct radeon_device *rdev)
 	tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
 	WREG32(MC_VM_FB_LOCATION, tmp);
 	WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
-	WREG32(HDP_NONSURFACE_INFO, (2 << 7));
+	WREG32(HDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
 	WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 	if (rdev->flags & RADEON_IS_AGP) {
 		WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16);