drm/nouveau/disp/nv50-: fetch mask of available sors during oneinit

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

28 files changed, 65 insertions, 53 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/g84.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/g84.c
index 9f31f04e4e58..287ac5edc88a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/g84.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/g84.c
@@ -34,7 +34,7 @@ g84_disp = {
 	.root = &g84_disp_root_oclass,
 	.head = { .cnt = nv50_head_cnt, .new = nv50_head_new },
 	.dac = { .cnt = nv50_dac_cnt, .new = nv50_dac_new },
-	.sor = { .nr = 2, .new = g84_sor_new },
+	.sor = { .cnt = nv50_sor_cnt, .new = g84_sor_new },
 	.pior = { .nr = 3, .new = nv50_pior_new },
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/g94.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/g94.c
index 71fe26b25835..e21f76d4e28e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/g94.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/g94.c
@@ -34,7 +34,7 @@ g94_disp = {
 	.root = &g94_disp_root_oclass,
 	.head = { .cnt = nv50_head_cnt, .new = nv50_head_new },
 	.dac = { .cnt = nv50_dac_cnt, .new = nv50_dac_new },
-	.sor = { .nr = 4, .new = g94_sor_new },
+	.sor = { .cnt = g94_sor_cnt, .new = g94_sor_new },
 	.pior = { .nr = 3, .new = nv50_pior_new },
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c
index c8495bcf289c..0139d143c733 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gf119.c
@@ -173,7 +173,7 @@ gf119_disp = {
 	.root = &gf119_disp_root_oclass,
 	.head = { .cnt = gf119_head_cnt, .new = gf119_head_new },
 	.dac = { .cnt = gf119_dac_cnt, .new = gf119_dac_new },
-	.sor = { .nr = 4, .new = gf119_sor_new },
+	.sor = { .cnt = gf119_sor_cnt, .new = gf119_sor_new },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gk104.c
index b948619818cc..6a59a52468c1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gk104.c
@@ -35,7 +35,7 @@ gk104_disp = {
 	.root = &gk104_disp_root_oclass,
 	.head = { .cnt = gf119_head_cnt, .new = gf119_head_new },
 	.dac = { .cnt = gf119_dac_cnt, .new = gf119_dac_new },
-	.sor = { .nr = 4, .new = gk104_sor_new },
+	.sor = { .cnt = gf119_sor_cnt, .new = gk104_sor_new },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gk110.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gk110.c
index 0b4945703568..f3b10dc4e673 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gk110.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gk110.c
@@ -35,7 +35,7 @@ gk110_disp = {
 	.root = &gk110_disp_root_oclass,
 	.head = { .cnt = gf119_head_cnt, .new = gf119_head_new },
 	.dac = { .cnt = gf119_dac_cnt, .new = gf119_dac_new },
-	.sor = { .nr = 4, .new = gk104_sor_new },
+	.sor = { .cnt = gf119_sor_cnt, .new = gk104_sor_new },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gm107.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gm107.c
index 35ad965ffee2..068c5951efe3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gm107.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gm107.c
@@ -35,7 +35,7 @@ gm107_disp = {
 	.root = &gm107_disp_root_oclass,
 	.head = { .cnt = gf119_head_cnt, .new = gf119_head_new },
 	.dac = { .cnt = gf119_dac_cnt, .new = gf119_dac_new },
-	.sor = { .nr = 4, .new = gm107_sor_new },
+	.sor = { .cnt = gf119_sor_cnt, .new = gm107_sor_new },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gm200.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gm200.c
index b2a5d364ffaf..1c27dbe6ccec 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gm200.c
@@ -35,7 +35,7 @@ gm200_disp = {
 	.root = &gm200_disp_root_oclass,
 	.head = { .cnt = gf119_head_cnt, .new = gf119_head_new },
 	.dac = { .cnt = gf119_dac_cnt, .new = gf119_dac_new },
-	.sor = { .nr = 4, .new = gm200_sor_new },
+	.sor = { .cnt = gf119_sor_cnt, .new = gm200_sor_new },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gp100.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gp100.c
index 190d03025fc1..84933b6119f2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gp100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gp100.c
@@ -34,7 +34,7 @@ gp100_disp = {
 	.super = gf119_disp_super,
 	.root = &gp100_disp_root_oclass,
 	.head = { .cnt = gf119_head_cnt, .new = gf119_head_new },
-	.sor = { .nr = 4, .new = gm200_sor_new },
+	.sor = { .cnt = gf119_sor_cnt, .new = gm200_sor_new },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gp102.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gp102.c
index a059c65243a9..b36d926f0264 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gp102.c
@@ -60,7 +60,7 @@ gp102_disp = {
 	.super = gf119_disp_super,
 	.root = &gp102_disp_root_oclass,
 	.head = { .cnt = gf119_head_cnt, .new = gf119_head_new },
-	.sor = { .nr = 4, .new = gm200_sor_new },
+	.sor = { .cnt = gf119_sor_cnt, .new = gm200_sor_new },
 };
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt200.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt200.c
index 88b6a34e9df7..2ca92a23a62a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt200.c
@@ -34,7 +34,7 @@ gt200_disp = {
 	.root = &gt200_disp_root_oclass,
 	.head = { .cnt = nv50_head_cnt, .new = nv50_head_new },
 	.dac = { .cnt = nv50_dac_cnt, .new = nv50_dac_new },
-	.sor = { .nr = 2, .new = g84_sor_new },
+	.sor = { .cnt = nv50_sor_cnt, .new = g84_sor_new },
 	.pior = { .nr = 3, .new = nv50_pior_new },
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c
index 1519ca566d9f..73b039069660 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/gt215.c
@@ -34,7 +34,7 @@ gt215_disp = {
 	.root = &gt215_disp_root_oclass,
 	.head = { .cnt = nv50_head_cnt, .new = nv50_head_new },
 	.dac = { .cnt = nv50_dac_cnt, .new = nv50_dac_new },
-	.sor = { .nr = 4, .new = gt215_sor_new },
+	.sor = { .cnt = g94_sor_cnt, .new = gt215_sor_new },
 	.pior = { .nr = 3, .new = nv50_pior_new },
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
index 89d9ab154c4b..6432e0611dee 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
@@ -106,7 +106,6 @@ nv50_sor_link(struct nvkm_ior *ior)
 	return nv50_ior_base(ior) + ((ior->asy.link == 2) * 0x80);
 }
 
-int nv50_sor_new_(const struct nvkm_ior_func *, struct nvkm_disp *, int id);
 void nv50_sor_state(struct nvkm_ior *, struct nvkm_ior_state *);
 void nv50_sor_power(struct nvkm_ior *, bool, bool, bool, bool, bool);
 void nv50_sor_clock(struct nvkm_ior *);
@@ -122,7 +121,6 @@ void g94_sor_dp_watermark(struct nvkm_ior *, int, u8);
 
 void gt215_sor_dp_audio(struct nvkm_ior *, int, bool);
 
-int gf119_sor_new_(const struct nvkm_ior_func *, struct nvkm_disp *, int id);
 void gf119_sor_state(struct nvkm_ior *, struct nvkm_ior_state *);
 void gf119_sor_clock(struct nvkm_ior *);
 int gf119_sor_dp_links(struct nvkm_ior *, struct nvkm_i2c_aux *);
@@ -161,13 +159,21 @@ int gf119_dac_new(struct nvkm_disp *, int);
 
 int nv50_pior_new(struct nvkm_disp *, int);
 
+int nv50_sor_cnt(struct nvkm_disp *, unsigned long *);
 int nv50_sor_new(struct nvkm_disp *, int);
+
 int g84_sor_new(struct nvkm_disp *, int);
+
+int g94_sor_cnt(struct nvkm_disp *, unsigned long *);
 int g94_sor_new(struct nvkm_disp *, int);
+
 int mcp77_sor_new(struct nvkm_disp *, int);
 int gt215_sor_new(struct nvkm_disp *, int);
 int mcp89_sor_new(struct nvkm_disp *, int);
+
+int gf119_sor_cnt(struct nvkm_disp *, unsigned long *);
 int gf119_sor_new(struct nvkm_disp *, int);
+
 int gk104_sor_new(struct nvkm_disp *, int);
 int gm107_sor_new(struct nvkm_disp *, int);
 int gm200_sor_new(struct nvkm_disp *, int);
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c
index fb188546f5f8..c3f6504ea67d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c
@@ -32,7 +32,7 @@ mcp77_disp = {
 	.root = &g94_disp_root_oclass,
 	.head = { .cnt = nv50_head_cnt, .new = nv50_head_new },
 	.dac = { .cnt = nv50_dac_cnt, .new = nv50_dac_new },
-	.sor = { .nr = 4, .new = mcp77_sor_new },
+	.sor = { .cnt = g94_sor_cnt, .new = mcp77_sor_new },
 	.pior = { .nr = 3, .new = nv50_pior_new },
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp89.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp89.c
index ae7fb9625674..2d1d9218d253 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp89.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp89.c
@@ -32,7 +32,7 @@ mcp89_disp = {
 	.root = &gt215_disp_root_oclass,
 	.head = { .cnt = nv50_head_cnt, .new = nv50_head_new },
 	.dac = { .cnt = nv50_dac_cnt, .new = nv50_dac_new },
-	.sor = { .nr = 4, .new = mcp89_sor_new },
+	.sor = { .cnt = g94_sor_cnt, .new = mcp89_sor_new },
 	.pior = { .nr = 3, .new = nv50_pior_new },
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
index 500ef8da696a..1e32814488bf 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
@@ -93,7 +93,10 @@ nv50_disp_oneinit_(struct nvkm_disp *base)
 			return ret;
 	}
 
-	for (i = 0; func->sor.new && i < func->sor.nr; i++) {
+	disp->sor.nr = func->sor.cnt(&disp->base, &disp->sor.mask);
+	nvkm_debug(subdev, "   SOR(s): %d (%02lx)\n",
+		   disp->sor.nr, disp->sor.mask);
+	for_each_set_bit(i, &disp->sor.mask, disp->sor.nr) {
 		ret = func->sor.new(&disp->base, i);
 		if (ret)
 			return ret;
@@ -643,7 +646,7 @@ nv50_disp = {
 	.root = &nv50_disp_root_oclass,
 	.head = { .cnt = nv50_head_cnt, .new = nv50_head_new },
 	.dac = { .cnt = nv50_dac_cnt, .new = nv50_dac_new },
-	.sor = { .nr = 2, .new = nv50_sor_new },
+	.sor = { .cnt = nv50_sor_cnt, .new = nv50_sor_new },
 	.pior = { .nr = 3, .new = nv50_pior_new },
 };
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
index 3415a5258492..ee2968b7aef1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
@@ -21,6 +21,8 @@ struct nv50_disp {
 	} head, dac;
 
 	struct {
+		unsigned long mask;
+		int nr;
 		u32 lvdsconf;
 	} sor;
 
@@ -53,12 +55,7 @@ struct nv50_disp_func {
 	struct {
 		int (*cnt)(struct nvkm_disp *, unsigned long *mask);
 		int (*new)(struct nvkm_disp *, int id);
-	} head, dac;
-
-	struct {
-		int nr;
-		int (*new)(struct nvkm_disp *, int id);
-	} sor;
+	} head, dac, sor;
 
 	struct {
 		int nr;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootgf119.c
index 7f22b875b9b3..4ba2d80db52b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootgf119.c
@@ -70,7 +70,7 @@ gf119_disp_root_init(struct nv50_disp_root *root)
 	}
 
 	/* ... SOR caps */
-	for (i = 0; i < disp->func->sor.nr; i++) {
+	for (i = 0; i < disp->sor.nr; i++) {
 		tmp = nvkm_rd32(device, 0x61c000 + (i * 0x800));
 		nvkm_wr32(device, 0x6301c4 + (i * 0x800), tmp);
 	}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
index 3fbaccd9569b..9d0b5b71d38a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
@@ -433,7 +433,7 @@ nv50_disp_root_init(struct nv50_disp_root *root)
 	}
 
 	/* ... SOR caps */
-	for (i = 0; i < disp->func->sor.nr; i++) {
+	for (i = 0; i < disp->sor.nr; i++) {
 		tmp = nvkm_rd32(device, 0x61c000 + (i * 0x800));
 		nvkm_wr32(device, 0x6101e0 + (i * 0x04), tmp);
 	}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg84.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg84.c
index f40b909b4ca2..ec3a7db08118 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg84.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg84.c
@@ -34,5 +34,5 @@ g84_sor = {
 int
 g84_sor_new(struct nvkm_disp *disp, int id)
 {
-	return nv50_sor_new_(&g84_sor, disp, id);
+	return nvkm_ior_new_(&g84_sor, disp, SOR, id);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c
index 49aeafde0031..4d59d02525d9 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorg94.c
@@ -279,5 +279,13 @@ g94_sor = {
 int
 g94_sor_new(struct nvkm_disp *disp, int id)
 {
-	return nv50_sor_new_(&g94_sor, disp, id);
+	return nvkm_ior_new_(&g94_sor, disp, SOR, id);
+}
+
+int
+g94_sor_cnt(struct nvkm_disp *disp, unsigned long *pmask)
+{
+	struct nvkm_device *device = disp->engine.subdev.device;
+	*pmask = (nvkm_rd32(device, 0x610184) & 0x0f000000) >> 24;
+	return 4;
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
index 700fc754f28a..e6e6dfbb1283 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgf119.c
@@ -152,15 +152,6 @@ gf119_sor_state(struct nvkm_ior *sor, struct nvkm_ior_state *state)
 	state->head = ctrl & 0x0000000f;
 }
 
-int
-gf119_sor_new_(const struct nvkm_ior_func *func, struct nvkm_disp *disp, int id)
-{
-	struct nvkm_device *device = disp->engine.subdev.device;
-	if (!(nvkm_rd32(device, 0x612004) & (0x00000100 << id)))
-		return 0;
-	return nvkm_ior_new_(func, disp, SOR, id);
-}
-
 static const struct nvkm_ior_func
 gf119_sor = {
 	.state = gf119_sor_state,
@@ -189,5 +180,13 @@ gf119_sor = {
 int
 gf119_sor_new(struct nvkm_disp *disp, int id)
 {
-	return gf119_sor_new_(&gf119_sor, disp, id);
+	return nvkm_ior_new_(&gf119_sor, disp, SOR, id);
+}
+
+int
+gf119_sor_cnt(struct nvkm_disp *disp, unsigned long *pmask)
+{
+	struct nvkm_device *device = disp->engine.subdev.device;
+	*pmask = (nvkm_rd32(device, 0x612004) & 0x0000ff00) >> 8;
+	return 8;
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgk104.c
index a1547bdf490b..b94090edaebf 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgk104.c
@@ -49,5 +49,5 @@ gk104_sor = {
 int
 gk104_sor_new(struct nvkm_disp *disp, int id)
 {
-	return gf119_sor_new_(&gk104_sor, disp, id);
+	return nvkm_ior_new_(&gk104_sor, disp, SOR, id);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm107.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm107.c
index 60230957d82b..e6965dec09c9 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm107.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm107.c
@@ -63,5 +63,5 @@ gm107_sor = {
 int
 gm107_sor_new(struct nvkm_disp *disp, int id)
 {
-	return gf119_sor_new_(&gm107_sor, disp, id);
+	return nvkm_ior_new_(&gm107_sor, disp, SOR, id);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c
index f9b8107aa2a2..8bc019b6ffab 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c
@@ -120,5 +120,5 @@ gm200_sor = {
 int
 gm200_sor_new(struct nvkm_disp *disp, int id)
 {
-	return gf119_sor_new_(&gm200_sor, disp, id);
+	return nvkm_ior_new_(&gm200_sor, disp, SOR, id);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgt215.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgt215.c
index da228b54b43e..54d134d4ca1d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgt215.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgt215.c
@@ -65,5 +65,5 @@ gt215_sor = {
 int
 gt215_sor_new(struct nvkm_disp *disp, int id)
 {
-	return nv50_sor_new_(&gt215_sor, disp, id);
+	return nvkm_ior_new_(&gt215_sor, disp, SOR, id);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp77.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp77.c
index c0179ccb956d..8a70dd25b13a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp77.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp77.c
@@ -44,5 +44,5 @@ mcp77_sor = {
 int
 mcp77_sor_new(struct nvkm_disp *disp, int id)
 {
-	return nv50_sor_new_(&mcp77_sor, disp, id);
+	return nvkm_ior_new_(&mcp77_sor, disp, SOR, id);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp89.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp89.c
index 9bb01cd96697..eac9c5be9166 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp89.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sormcp89.c
@@ -49,5 +49,5 @@ mcp89_sor = {
 int
 mcp89_sor_new(struct nvkm_disp *disp, int id)
 {
-	return nv50_sor_new_(&mcp89_sor, disp, id);
+	return nvkm_ior_new_(&mcp89_sor, disp, SOR, id);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sornv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sornv50.c
index f3ebd0c22e7d..b4729f8798af 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/sornv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/sornv50.c
@@ -84,15 +84,6 @@ nv50_sor_state(struct nvkm_ior *sor, struct nvkm_ior_state *state)
 	state->head = ctrl & 0x00000003;
 }
 
-int
-nv50_sor_new_(const struct nvkm_ior_func *func, struct nvkm_disp *disp, int id)
-{
-	struct nvkm_device *device = disp->engine.subdev.device;
-	if (!(nvkm_rd32(device, 0x610184) & (0x01000000 << id)))
-		return 0;
-	return nvkm_ior_new_(func, disp, SOR, id);
-}
-
 static const struct nvkm_ior_func
 nv50_sor = {
 	.state = nv50_sor_state,
@@ -103,5 +94,13 @@ nv50_sor = {
 int
 nv50_sor_new(struct nvkm_disp *disp, int id)
 {
-	return nv50_sor_new_(&nv50_sor, disp, id);
+	return nvkm_ior_new_(&nv50_sor, disp, SOR, id);
+}
+
+int
+nv50_sor_cnt(struct nvkm_disp *disp, unsigned long *pmask)
+{
+	struct nvkm_device *device = disp->engine.subdev.device;
+	*pmask = (nvkm_rd32(device, 0x610184) & 0x03000000) >> 24;
+	return 2;
 }