mmCP_RB1_BASE    2895 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c 	WREG32_SOC15(GC, 0, mmCP_RB1_BASE, rb_addr);
mmCP_RB1_BASE    2216 drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c 	WREG32(mmCP_RB1_BASE, ring->gpu_addr >> 8);