radeonsi: properly set the raster_config for KV

This enables the second RB on asics that support it which
should boost performance.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: mesa-stable@lists.freedesktop.org

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index 6a8d786..c95fbf8 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -3143,6 +3143,7 @@ si_write_harvested_raster_configs(struct si_context *sctx,
 
 static void si_init_config(struct si_context *sctx)
 {
+       unsigned num_rb = sctx->screen->b.info.r600_num_backends;
        struct si_pm4_state *pm4 = CALLOC_STRUCT(si_pm4_state);
 
        if (pm4 == NULL)
@@ -3194,14 +3195,17 @@ static void si_init_config(struct si_context *sctx)
                        si_pm4_set_reg(pm4, R_028354_PA_SC_RASTER_CONFIG_1, 0x00000000);
                        break;
                case CHIP_KAVERI:
-                       /* XXX todo */
+                       if (num_rb > 1)
+                               si_pm4_set_reg(pm4, R_028350_PA_SC_RASTER_CONFIG, 0x00000002);
+                       else
+                               si_pm4_set_reg(pm4, R_028350_PA_SC_RASTER_CONFIG, 0x00000000);
+                       si_pm4_set_reg(pm4, R_028354_PA_SC_RASTER_CONFIG_1, 0x00000000);
+                       break;
                case CHIP_KABINI:
-                       /* XXX todo */
                case CHIP_MULLINS:
-                       /* XXX todo */
                default:
-                       si_pm4_set_reg(pm4, R_028350_PA_SC_RASTER_CONFIG, 0);
-                       si_pm4_set_reg(pm4, R_028354_PA_SC_RASTER_CONFIG_1, 0);
+                       si_pm4_set_reg(pm4, R_028350_PA_SC_RASTER_CONFIG, 0x00000000);
+                       si_pm4_set_reg(pm4, R_028354_PA_SC_RASTER_CONFIG_1, 0x00000000);
                        break;
                }
        } else {