radeonsi: get the raster config from AMDGPU on SI

Not sure yet if we wanna do this on CIK and VI too.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

src/amd/common/ac_gpu_info.c

@@ -301,6 +301,9 @@ bool ac_query_gpu_info(int fd, amdgpu_device_handle dev,
 	memcpy(info->si_tile_mode_array, amdinfo->gb_tile_mode,
 		sizeof(amdinfo->gb_tile_mode));
 	info->enabled_rb_mask = amdinfo->enabled_rb_pipes_mask;
+	memcpy(info->pa_sc_raster_config, amdinfo->pa_sc_raster_cfg,
+	       sizeof(info->pa_sc_raster_config));
+	info->pa_sc_raster_config_1 = amdinfo->pa_sc_raster_cfg1[0];
 
 	memcpy(info->cik_macrotile_mode_array, amdinfo->gb_macro_tile_mode,
 		sizeof(amdinfo->gb_macro_tile_mode));

src/amd/common/ac_gpu_info.h

@@ -96,6 +96,8 @@ struct radeon_info {
 	uint32_t                    num_tile_pipes; /* pipe count from PIPE_CONFIG */
 	uint32_t                    pipe_interleave_bytes;
 	uint32_t                    enabled_rb_mask; /* GCN harvest config */
+	uint32_t                    pa_sc_raster_config[4]; /* per SE */
+	uint32_t                    pa_sc_raster_config_1;
 
 	uint64_t                    max_alignment; /* from addrlib */
 	/* Tile modes. */

src/gallium/drivers/radeonsi/si_state.c

@@ -4421,6 +4421,23 @@ si_write_harvested_raster_configs(struct si_context *sctx,
 static void si_set_raster_config(struct si_context *sctx, struct si_pm4_state *pm4)
 {
 	struct si_screen *sscreen = sctx->screen;
+
+	/* On SI, set the raster config value from AMDGPU. */
+	if (sscreen->b.info.drm_major == 3 && sscreen->b.chip_class == SI) {
+		if (sscreen->b.info.max_se == 1) {
+			si_pm4_set_reg(pm4, R_028350_PA_SC_RASTER_CONFIG,
+				       sscreen->b.info.pa_sc_raster_config[0]);
+		} else {
+			for (unsigned se = 0; se < sscreen->b.info.max_se; se++) {
+				si_set_grbm_gfx_index_se(sctx, pm4, se);
+				si_pm4_set_reg(pm4, R_028350_PA_SC_RASTER_CONFIG,
+					       sscreen->b.info.pa_sc_raster_config[se]);
+			}
+			si_set_grbm_gfx_index_se(sctx, pm4, ~0);
+		}
+		return;
+	}
+
 	unsigned num_rb = MIN2(sctx->screen->b.info.num_render_backends, 16);
 	unsigned rb_mask = sctx->screen->b.info.enabled_rb_mask;
 	unsigned raster_config, raster_config_1;