drm/nouveau/gr/gk104-: correct crop/zrop num_active_fbps setting

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h

@@ -88,6 +88,7 @@ void gk104_grctx_generate_bundle(struct gf100_grctx *);
 void gk104_grctx_generate_pagepool(struct gf100_grctx *);
 void gk104_grctx_generate_unkn(struct gf100_gr_priv *);
 void gk104_grctx_generate_r418bb8(struct gf100_gr_priv *);
+void gk104_grctx_generate_rop_active_fbps(struct gf100_gr_priv *);
 
 extern struct nvkm_oclass *gk110_grctx_oclass;
 extern struct nvkm_oclass *gk110b_grctx_oclass;

drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c

@@ -940,6 +940,14 @@ gk104_grctx_generate_r418bb8(struct gf100_gr_priv *priv)
 		nv_wr32(priv, 0x40780c + (i * 4), data[i]);
 }
 
+void
+gk104_grctx_generate_rop_active_fbps(struct gf100_gr_priv *priv)
+{
+	const u32 fbp_count = nv_rd32(priv, 0x120074);
+	nv_mask(priv, 0x408850, 0x0000000f, fbp_count); /* zrop */
+	nv_mask(priv, 0x408958, 0x0000000f, fbp_count); /* crop */
+}
+
 void
 gk104_grctx_generate_main(struct gf100_gr_priv *priv, struct gf100_grctx *info)
 {
@@ -970,13 +978,7 @@ gk104_grctx_generate_main(struct gf100_gr_priv *priv, struct gf100_grctx *info)
 		nv_wr32(priv, 0x4064d0 + (i * 0x04), 0x00000000);
 
 	nv_wr32(priv, 0x405b00, (priv->tpc_total << 8) | priv->gpc_nr);
-	if (priv->gpc_nr == 1) {
-		nv_mask(priv, 0x408850, 0x0000000f, priv->tpc_nr[0]);
-		nv_mask(priv, 0x408958, 0x0000000f, priv->tpc_nr[0]);
-	} else {
-		nv_mask(priv, 0x408850, 0x0000000f, priv->gpc_nr);
-		nv_mask(priv, 0x408958, 0x0000000f, priv->gpc_nr);
-	}
+	gk104_grctx_generate_rop_active_fbps(priv);
 	nv_mask(priv, 0x419f78, 0x00000001, 0x00000000);
 
 	gf100_gr_icmd(priv, oclass->icmd);

drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c

@@ -982,13 +982,7 @@ gm107_grctx_generate_main(struct gf100_gr_priv *priv, struct gf100_grctx *info)
 
 	nv_wr32(priv, 0x405b00, (priv->tpc_total << 8) | priv->gpc_nr);
 
-	if (priv->gpc_nr == 1) {
-		nv_mask(priv, 0x408850, 0x0000000f, priv->tpc_nr[0]);
-		nv_mask(priv, 0x408958, 0x0000000f, priv->tpc_nr[0]);
-	} else {
-		nv_mask(priv, 0x408850, 0x0000000f, priv->gpc_nr);
-		nv_mask(priv, 0x408958, 0x0000000f, priv->gpc_nr);
-	}
+	gk104_grctx_generate_rop_active_fbps(priv);
 
 	gf100_gr_icmd(priv, oclass->icmd);
 	nv_wr32(priv, 0x404154, 0x00000400);