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-rw-r--r--src/gallium/drivers/radeonsi/si_state.c31
1 files changed, 23 insertions, 8 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index dea4d466eb0..4eee7787c6f 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -120,6 +120,23 @@ static void si_emit_cb_render_state(struct si_context *sctx, struct r600_atom *a
radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_DFSM) | EVENT_INDEX(0));
}
+ if (sctx->b.chip_class >= VI) {
+ /* DCC MSAA workaround for blending.
+ * Alternatively, we can set CB_COLORi_DCC_CONTROL.OVERWRITE_-
+ * COMBINER_DISABLE, but that would be more complicated.
+ */
+ bool oc_disable = (sctx->b.chip_class == VI ||
+ sctx->b.chip_class == GFX9) &&
+ blend &&
+ blend->blend_enable_4bit & cb_target_mask &&
+ sctx->framebuffer.nr_samples >= 2;
+
+ radeon_set_context_reg(cs, R_028424_CB_DCC_CONTROL,
+ S_028424_OVERWRITE_COMBINER_MRT_SHARING_DISABLE(1) |
+ S_028424_OVERWRITE_COMBINER_WATERMARK(4) |
+ S_028424_OVERWRITE_COMBINER_DISABLE(oc_disable));
+ }
+
/* RB+ register settings. */
if (sctx->screen->b.rbplus_allowed) {
unsigned spi_shader_col_format =
@@ -653,13 +670,15 @@ static void si_bind_blend_state(struct pipe_context *ctx, void *state)
if (!state)
return;
+ si_pm4_bind_state(sctx, blend, state);
+
if (!old_blend ||
- old_blend->cb_target_mask != blend->cb_target_mask ||
- old_blend->dual_src_blend != blend->dual_src_blend)
+ old_blend->cb_target_mask != blend->cb_target_mask ||
+ old_blend->dual_src_blend != blend->dual_src_blend ||
+ (old_blend->blend_enable_4bit != blend->blend_enable_4bit &&
+ sctx->framebuffer.nr_samples >= 2))
si_mark_atom_dirty(sctx, &sctx->cb_render_state);
- si_pm4_bind_state(sctx, blend, state);
-
if (!old_blend ||
old_blend->cb_target_mask != blend->cb_target_mask ||
old_blend->alpha_to_coverage != blend->alpha_to_coverage ||
@@ -5053,10 +5072,6 @@ static void si_init_config(struct si_context *sctx)
if (sctx->b.chip_class >= VI) {
unsigned vgt_tess_distribution;
- si_pm4_set_reg(pm4, R_028424_CB_DCC_CONTROL,
- S_028424_OVERWRITE_COMBINER_MRT_SHARING_DISABLE(1) |
- S_028424_OVERWRITE_COMBINER_WATERMARK(4));
-
vgt_tess_distribution =
S_028B50_ACCUM_ISOLINE(32) |
S_028B50_ACCUM_TRI(11) |