drm/amdgpu/gfx8: use cached values for raster config in clear state

Use the cached values rather than hardcoding it.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

@@ -4313,37 +4313,8 @@ static int gfx_v8_0_cp_gfx_start(struct amdgpu_device *adev)
 
 	amdgpu_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
 	amdgpu_ring_write(ring, mmPA_SC_RASTER_CONFIG - PACKET3_SET_CONTEXT_REG_START);
-	switch (adev->asic_type) {
-	case CHIP_TONGA:
-	case CHIP_POLARIS10:
-		amdgpu_ring_write(ring, 0x16000012);
-		amdgpu_ring_write(ring, 0x0000002A);
-		break;
-	case CHIP_POLARIS11:
-	case CHIP_POLARIS12:
-		amdgpu_ring_write(ring, 0x16000012);
-		amdgpu_ring_write(ring, 0x00000000);
-		break;
-	case CHIP_FIJI:
-		amdgpu_ring_write(ring, 0x3a00161a);
-		amdgpu_ring_write(ring, 0x0000002e);
-		break;
-	case CHIP_CARRIZO:
-		amdgpu_ring_write(ring, 0x00000002);
-		amdgpu_ring_write(ring, 0x00000000);
-		break;
-	case CHIP_TOPAZ:
-		amdgpu_ring_write(ring, adev->gfx.config.num_rbs == 1 ?
-				0x00000000 : 0x00000002);
-		amdgpu_ring_write(ring, 0x00000000);
-		break;
-	case CHIP_STONEY:
-		amdgpu_ring_write(ring, 0x00000000);
-		amdgpu_ring_write(ring, 0x00000000);
-		break;
-	default:
-		BUG();
-	}
+	amdgpu_ring_write(ring, adev->gfx.config.rb_config[0][0].raster_config);
+	amdgpu_ring_write(ring, adev->gfx.config.rb_config[0][0].raster_config_1);
 
 	amdgpu_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
 	amdgpu_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);