4 files changed, 26 insertions, 4 deletions
diff --git a/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h b/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
index bd9b0a46bc1..df59438f106 100644
--- a/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
+++ b/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
@@ -2626,7 +2626,20 @@ static inline uint32_t A4XX_PC_PRIM_VTX_CNTL_VAROUT(uint32_t val)
 #define A4XX_PC_PRIM_VTX_CNTL_PROVOKING_VTX_LAST		0x02000000
 #define A4XX_PC_PRIM_VTX_CNTL_PSIZE				0x04000000
 
-#define REG_A4XX_UNKNOWN_21C5					0x000021c5
+#define REG_A4XX_PC_PRIM_VTX_CNTL2				0x000021c5
+#define A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_FRONT_PTYPE__MASK	0x00000007
+#define A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_FRONT_PTYPE__SHIFT	0
+static inline uint32_t A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_FRONT_PTYPE(enum adreno_pa_su_sc_draw val)
+{
+	return ((val) << A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_FRONT_PTYPE__SHIFT) & A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_FRONT_PTYPE__MASK;
+}
+#define A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_BACK_PTYPE__MASK	0x00000038
+#define A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_BACK_PTYPE__SHIFT	3
+static inline uint32_t A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_BACK_PTYPE(enum adreno_pa_su_sc_draw val)
+{
+	return ((val) << A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_BACK_PTYPE__SHIFT) & A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_BACK_PTYPE__MASK;
+}
+#define A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_ENABLE			0x00000040
 
 #define REG_A4XX_PC_RESTART_INDEX				0x000021c6
 
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_emit.c b/src/gallium/drivers/freedreno/a4xx/fd4_emit.c
index 60069aeedc5..ec454b2a10f 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_emit.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_emit.c
@@ -568,8 +568,9 @@ fd4_emit_state(struct fd_context *ctx, struct fd_ringbuffer *ring,
 	 */
 	if (emit->info) {
 		const struct pipe_draw_info *info = emit->info;
-		uint32_t val = fd4_rasterizer_stateobj(ctx->rasterizer)
-				->pc_prim_vtx_cntl;
+		struct fd4_rasterizer_stateobj *rast =
+			fd4_rasterizer_stateobj(ctx->rasterizer);
+		uint32_t val = rast->pc_prim_vtx_cntl;
 
 		if (info->indexed && info->primitive_restart)
 			val |= A4XX_PC_PRIM_VTX_CNTL_PRIMITIVE_RESTART;
@@ -585,7 +586,7 @@ fd4_emit_state(struct fd_context *ctx, struct fd_ringbuffer *ring,
 
 		OUT_PKT0(ring, REG_A4XX_PC_PRIM_VTX_CNTL, 2);
 		OUT_RING(ring, val);
-		OUT_RING(ring, 0x12);     /* XXX UNKNOWN_21C5 */
+		OUT_RING(ring, rast->pc_prim_vtx_cntl2);
 	}
 
 	if (dirty & FD_DIRTY_SCISSOR) {
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c b/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
index d894b6b9e09..7456c63febe 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
@@ -77,6 +77,13 @@ fd4_rasterizer_state_create(struct pipe_context *pctx,
 
 	so->gras_su_mode_control =
 			A4XX_GRAS_SU_MODE_CONTROL_LINEHALFWIDTH(cso->line_width/2.0);
+	so->pc_prim_vtx_cntl2 =
+		A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_FRONT_PTYPE(fd_polygon_mode(cso->fill_front)) |
+		A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_BACK_PTYPE(fd_polygon_mode(cso->fill_back));
+
+	if (cso->fill_front != PIPE_POLYGON_MODE_FILL ||
+		cso->fill_back != PIPE_POLYGON_MODE_FILL)
+		so->pc_prim_vtx_cntl2 |= A4XX_PC_PRIM_VTX_CNTL2_POLYMODE_ENABLE;
 
 	if (cso->cull_face & PIPE_FACE_FRONT)
 		so->gras_su_mode_control |= A4XX_GRAS_SU_MODE_CONTROL_CULL_FRONT;
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.h b/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.h
index 64e81a9983b..b56a04da6a8 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.h
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.h
@@ -42,6 +42,7 @@ struct fd4_rasterizer_stateobj {
 	uint32_t gras_su_mode_control;
 	uint32_t gras_cl_clip_cntl;
 	uint32_t pc_prim_vtx_cntl;
+	uint32_t pc_prim_vtx_cntl2;
 };
 
 static inline struct fd4_rasterizer_stateobj *