radeonsi: set almost optimal settings in SC_MODE_CNTL_1

ported from Vulkan

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

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index f5da153..df188dd 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -2555,7 +2555,17 @@ static void si_emit_msaa_sample_locs(struct si_context *sctx,
 static void si_emit_msaa_config(struct si_context *sctx, struct r600_atom *atom)
 {
        struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
+       unsigned num_tile_pipes = sctx->screen->b.info.num_tile_pipes;
+       bool dst_is_linear = false; /* TODO */
        unsigned sc_mode_cntl_1 =
+               S_028A4C_WALK_SIZE(dst_is_linear) |
+               S_028A4C_WALK_FENCE_ENABLE(!dst_is_linear) |
+               S_028A4C_WALK_FENCE_SIZE(num_tile_pipes == 2 ? 2 : 3) |
+               /* always 1: */
+               S_028A4C_WALK_ALIGN8_PRIM_FITS_ST(1) |
+               S_028A4C_SUPERTILE_WALK_ORDER_ENABLE(1) |
+               S_028A4C_TILE_WALK_ORDER_ENABLE(1) |
+               S_028A4C_MULTI_SHADER_ENGINE_PRIM_DISCARD_ENABLE(1) |
                S_028A4C_FORCE_EOV_CNTDWN_ENABLE(1) |
                S_028A4C_FORCE_EOV_REZ_ENABLE(1);
 
@@ -2565,7 +2575,6 @@ static void si_emit_msaa_config(struct si_context *sctx, struct r600_atom *atom)
                                sc_mode_cntl_1);
 }
 
-
 static void si_set_min_samples(struct pipe_context *ctx, unsigned min_samples)
 {
        struct si_context *sctx = (struct si_context *)ctx;