radeonsi: move PA_SU_SC_MODE_CNTL to rasterizer state

This requires enabling the optional GL provoking vertex behavior for quads.

+ some cosmetic changes, so that the register is set exactly the same as
on r600.

Reviewed-by: Michel Dänzer <[email protected]>

5 files changed, 14 insertions, 30 deletions

diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 8b4246cfeff..d335bda44f4 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -233,6 +233,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 	case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 	case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+	case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 		return 1;
 
 	case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
@@ -267,7 +268,6 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 	case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 	case PIPE_CAP_VERTEX_COLOR_CLAMPED:
-	case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 	case PIPE_CAP_USER_VERTEX_BUFFERS:
 	case PIPE_CAP_TGSI_TEXCOORD:
 	case PIPE_CAP_FAKE_SW_MSAA:
diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index 7c37a3e6fc9..8cfaf708183 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -47,7 +47,7 @@
 #define SI_TRACE_CS_DWORDS		6
 
 #define SI_MAX_DRAW_CS_DWORDS \
-	(/*derived prim state:*/ 6 + /*draw regs:*/ 16 + /*draw packets:*/ 31)
+	(/*derived prim state:*/ 3 + /*draw regs:*/ 16 + /*draw packets:*/ 31)
 
 /* Instruction cache. */
 #define SI_CONTEXT_INV_ICACHE		(R600_CONTEXT_PRIVATE_FLAG << 0)
@@ -163,7 +163,6 @@ struct si_context {
 	struct si_framebuffer		framebuffer;
 	struct si_vertex_element	*vertex_elements;
 	unsigned			pa_sc_line_stipple;
-	unsigned			pa_su_sc_mode_cntl;
 	/* for saving when using blitter */
 	struct pipe_stencil_ref		stencil_ref;
 	/* shaders */
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index c7633dcfa39..e3e6fa45728 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -605,7 +605,6 @@ static void *si_create_rs_state(struct pipe_context *ctx,
 	struct si_state_rasterizer *rs = CALLOC_STRUCT(si_state_rasterizer);
 	struct si_pm4_state *pm4 = &rs->pm4;
 	unsigned tmp;
-	unsigned prov_vtx = 1, polygon_dual_mode;
 	float psize_min, psize_max;
 
 	if (rs == NULL) {
@@ -620,28 +619,11 @@ static void *si_create_rs_state(struct pipe_context *ctx,
 	rs->line_smooth = state->line_smooth;
 	rs->poly_smooth = state->poly_smooth;
 
-	polygon_dual_mode = (state->fill_front != PIPE_POLYGON_MODE_FILL ||
-				state->fill_back != PIPE_POLYGON_MODE_FILL);
-
-	if (state->flatshade_first)
-		prov_vtx = 0;
-
 	rs->flatshade = state->flatshade;
 	rs->sprite_coord_enable = state->sprite_coord_enable;
 	rs->pa_sc_line_stipple = state->line_stipple_enable ?
 				S_028A0C_LINE_PATTERN(state->line_stipple_pattern) |
 				S_028A0C_REPEAT_COUNT(state->line_stipple_factor) : 0;
-	rs->pa_su_sc_mode_cntl =
-		S_028814_PROVOKING_VTX_LAST(prov_vtx) |
-		S_028814_CULL_FRONT(state->rasterizer_discard || (state->cull_face & PIPE_FACE_FRONT) ? 1 : 0) |
-		S_028814_CULL_BACK(state->rasterizer_discard || (state->cull_face & PIPE_FACE_BACK) ? 1 : 0) |
-		S_028814_FACE(!state->front_ccw) |
-		S_028814_POLY_OFFSET_FRONT_ENABLE(util_get_offset(state, state->fill_front)) |
-		S_028814_POLY_OFFSET_BACK_ENABLE(util_get_offset(state, state->fill_back)) |
-		S_028814_POLY_OFFSET_PARA_ENABLE(state->offset_point || state->offset_line) |
-		S_028814_POLY_MODE(polygon_dual_mode) |
-		S_028814_POLYMODE_FRONT_PTYPE(si_translate_fill(state->fill_front)) |
-		S_028814_POLYMODE_BACK_PTYPE(si_translate_fill(state->fill_back));
 	rs->pa_cl_clip_cntl =
 		S_028810_PS_UCP_MODE(3) |
 		S_028810_DX_CLIP_SPACE_DEF(state->clip_halfz) |
@@ -698,7 +680,18 @@ static void *si_create_rs_state(struct pipe_context *ctx,
 		       S_028BE4_QUANT_MODE(V_028BE4_X_16_8_FIXED_POINT_1_256TH));
 
 	si_pm4_set_reg(pm4, R_028B7C_PA_SU_POLY_OFFSET_CLAMP, fui(state->offset_clamp));
-
+	si_pm4_set_reg(pm4, R_028814_PA_SU_SC_MODE_CNTL,
+		S_028814_PROVOKING_VTX_LAST(!state->flatshade_first) |
+		S_028814_CULL_FRONT((state->cull_face & PIPE_FACE_FRONT) ? 1 : 0) |
+		S_028814_CULL_BACK((state->cull_face & PIPE_FACE_BACK) ? 1 : 0) |
+		S_028814_FACE(!state->front_ccw) |
+		S_028814_POLY_OFFSET_FRONT_ENABLE(util_get_offset(state, state->fill_front)) |
+		S_028814_POLY_OFFSET_BACK_ENABLE(util_get_offset(state, state->fill_back)) |
+		S_028814_POLY_OFFSET_PARA_ENABLE(state->offset_point || state->offset_line) |
+		S_028814_POLY_MODE(state->fill_front != PIPE_POLYGON_MODE_FILL ||
+				   state->fill_back != PIPE_POLYGON_MODE_FILL) |
+		S_028814_POLYMODE_FRONT_PTYPE(si_translate_fill(state->fill_front)) |
+		S_028814_POLYMODE_BACK_PTYPE(si_translate_fill(state->fill_back)));
 	return rs;
 }
 
@@ -714,7 +707,6 @@ static void si_bind_rs_state(struct pipe_context *ctx, void *state)
 
 	// TODO
 	sctx->pa_sc_line_stipple = rs->pa_sc_line_stipple;
-	sctx->pa_su_sc_mode_cntl = rs->pa_su_sc_mode_cntl;
 
 	if (sctx->framebuffer.nr_samples > 1 &&
 	    (!old_rs || old_rs->multisample_enable != rs->multisample_enable))
diff --git a/src/gallium/drivers/radeonsi/si_state.h b/src/gallium/drivers/radeonsi/si_state.h
index 27dd2c30d96..2f8a943846a 100644
--- a/src/gallium/drivers/radeonsi/si_state.h
+++ b/src/gallium/drivers/radeonsi/si_state.h
@@ -62,7 +62,6 @@ struct si_state_rasterizer {
 	bool			line_stipple_enable;
 	unsigned		sprite_coord_enable;
 	unsigned		pa_sc_line_stipple;
-	unsigned		pa_su_sc_mode_cntl;
 	unsigned		pa_cl_clip_cntl;
 	unsigned		clip_plane_enable;
 	float			offset_units;
diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c
index eb2d0154765..b68e493c4bb 100644
--- a/src/gallium/drivers/radeonsi/si_state_draw.c
+++ b/src/gallium/drivers/radeonsi/si_state_draw.c
@@ -163,12 +163,6 @@ static void si_emit_rasterizer_prim_state(struct si_context *sctx)
 		S_028A0C_AUTO_RESET_CNTL(rast_prim == PIPE_PRIM_LINES ? 1 :
 					 rast_prim == PIPE_PRIM_LINE_STRIP ? 2 : 0));
 
-	r600_write_context_reg(cs, R_028814_PA_SU_SC_MODE_CNTL,
-		sctx->pa_su_sc_mode_cntl |
-		S_028814_PROVOKING_VTX_LAST(rast_prim == PIPE_PRIM_QUADS ||
-					    rast_prim == PIPE_PRIM_QUAD_STRIP ||
-					    rast_prim == PIPE_PRIM_POLYGON));
-
 	sctx->last_rast_prim = rast_prim;
 }