[Mesa-dev] [PATCH 3/3] radeonsi: don't emit DB_STENCIL_CONTROL if it has no effect

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

---
 src/gallium/drivers/radeonsi/si_state.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index 53f66ac..a8255f2 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -1078,21 +1078,22 @@ static void *si_create_dsa_state(struct pipe_context *ctx,
 	if (state->alpha.enabled) {
 		dsa->alpha_func = state->alpha.func;
 
 		si_pm4_set_reg(pm4, R_00B030_SPI_SHADER_USER_DATA_PS_0 +
 		               SI_SGPR_ALPHA_REF * 4, fui(state->alpha.ref_value));
 	} else {
 		dsa->alpha_func = PIPE_FUNC_ALWAYS;
 	}
 
 	si_pm4_set_reg(pm4, R_028800_DB_DEPTH_CONTROL, db_depth_control);
-	si_pm4_set_reg(pm4, R_02842C_DB_STENCIL_CONTROL, db_stencil_control);
+	if (state->stencil[0].enabled)
+		si_pm4_set_reg(pm4, R_02842C_DB_STENCIL_CONTROL, db_stencil_control);
 	if (state->depth.bounds_test) {
 		si_pm4_set_reg(pm4, R_028020_DB_DEPTH_BOUNDS_MIN, fui(state->depth.bounds_min));
 		si_pm4_set_reg(pm4, R_028024_DB_DEPTH_BOUNDS_MAX, fui(state->depth.bounds_max));
 	}
 
 	return dsa;
 }
 
 static void si_bind_dsa_state(struct pipe_context *ctx, void *state)
 {
-- 
2.7.4