radeonsi: enable VS_OUT_MISC_SIDE_BUS_ENA

This is recommended for better performance.
Diag tests always enable this.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index 701671b..7b45273 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -496,6 +496,7 @@ static void si_emit_clip_regs(struct si_context *sctx, struct r600_atom *atom)
                                            info->writes_edgeflag ||
                                            info->writes_layer ||
                                             info->writes_viewport_index) |
+               S_02881C_VS_OUT_MISC_SIDE_BUS_ENA(1) |
                (sctx->queued.named.rasterizer->clip_plane_enable &
                 clipdist_mask));
        r600_write_context_reg(cs, R_028810_PA_CL_CLIP_CNTL,