drm/nouveau/disp/gm200-: detect and potentially disable HDA support on some SORs

Some HDA pin widgets may be disabled by BIOS, and unavailable from a
SOR.  Our SOR allocation policy uses this information to allocate an
appropriate SOR when HDA is supported by a display.

Thank you to NVIDIA for providing the information to determine this.

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

Author: Ben Skeggs

drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgm200.c

@@ -89,7 +89,7 @@ gm200_sor_route_get(struct nvkm_outp *outp, int *link)
 }
 
 static const struct nvkm_ior_func
-gm200_sor = {
+gm200_sor_hda = {
 	.route = {
 		.get = gm200_sor_route_get,
 		.set = gm200_sor_route_set,
@@ -119,8 +119,42 @@ gm200_sor = {
 	},
 };
 
+static const struct nvkm_ior_func
+gm200_sor = {
+	.route = {
+		.get = gm200_sor_route_get,
+		.set = gm200_sor_route_set,
+	},
+	.state = gf119_sor_state,
+	.power = nv50_sor_power,
+	.clock = gf119_sor_clock,
+	.hdmi = {
+		.ctrl = gk104_hdmi_ctrl,
+		.scdc = gm200_hdmi_scdc,
+	},
+	.dp = {
+		.lanes = { 0, 1, 2, 3 },
+		.links = gf119_sor_dp_links,
+		.power = g94_sor_dp_power,
+		.pattern = gm107_sor_dp_pattern,
+		.drive = gm200_sor_dp_drive,
+		.vcpi = gf119_sor_dp_vcpi,
+		.audio = gf119_sor_dp_audio,
+		.audio_sym = gf119_sor_dp_audio_sym,
+		.watermark = gf119_sor_dp_watermark,
+	},
+};
+
 int
 gm200_sor_new(struct nvkm_disp *disp, int id)
 {
+	struct nvkm_device *device = disp->engine.subdev.device;
+	u32 hda;
+
+	if (!((hda = nvkm_rd32(device, 0x08a15c)) & 0x40000000))
+		hda = nvkm_rd32(device, 0x101034);
+
+	if (hda & BIT(id))
+		return nvkm_ior_new_(&gm200_sor_hda, disp, SOR, id);
 	return nvkm_ior_new_(&gm200_sor, disp, SOR, id);
 }

drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgp100.c

@@ -22,7 +22,7 @@
 #include "ior.h"
 
 static const struct nvkm_ior_func
-gp100_sor = {
+gp100_sor_hda = {
 	.route = {
 		.get = gm200_sor_route_get,
 		.set = gm200_sor_route_set,
@@ -52,8 +52,42 @@ gp100_sor = {
 	},
 };
 
+static const struct nvkm_ior_func
+gp100_sor = {
+	.route = {
+		.get = gm200_sor_route_get,
+		.set = gm200_sor_route_set,
+	},
+	.state = gf119_sor_state,
+	.power = nv50_sor_power,
+	.clock = gf119_sor_clock,
+	.hdmi = {
+		.ctrl = gk104_hdmi_ctrl,
+		.scdc = gm200_hdmi_scdc,
+	},
+	.dp = {
+		.lanes = { 0, 1, 2, 3 },
+		.links = gf119_sor_dp_links,
+		.power = g94_sor_dp_power,
+		.pattern = gm107_sor_dp_pattern,
+		.drive = gm200_sor_dp_drive,
+		.vcpi = gf119_sor_dp_vcpi,
+		.audio = gf119_sor_dp_audio,
+		.audio_sym = gf119_sor_dp_audio_sym,
+		.watermark = gf119_sor_dp_watermark,
+	},
+};
+
 int
 gp100_sor_new(struct nvkm_disp *disp, int id)
 {
+	struct nvkm_device *device = disp->engine.subdev.device;
+	u32 hda;
+
+	if (!((hda = nvkm_rd32(device, 0x08a15c)) & 0x40000000))
+		hda = nvkm_rd32(device, 0x10ebb0) >> 8;
+
+	if (hda & BIT(id))
+		return nvkm_ior_new_(&gp100_sor_hda, disp, SOR, id);
 	return nvkm_ior_new_(&gp100_sor, disp, SOR, id);
 }

drivers/gpu/drm/nouveau/nvkm/engine/disp/sorgv100.c

@@ -78,7 +78,7 @@ gv100_sor_state(struct nvkm_ior *sor, struct nvkm_ior_state *state)
 }
 
 static const struct nvkm_ior_func
-gv100_sor = {
+gv100_sor_hda = {
 	.route = {
 		.get = gm200_sor_route_get,
 		.set = gm200_sor_route_set,
@@ -107,9 +107,42 @@ gv100_sor = {
 	},
 };
 
+static const struct nvkm_ior_func
+gv100_sor = {
+	.route = {
+		.get = gm200_sor_route_get,
+		.set = gm200_sor_route_set,
+	},
+	.state = gv100_sor_state,
+	.power = nv50_sor_power,
+	.clock = gf119_sor_clock,
+	.hdmi = {
+		.ctrl = gv100_hdmi_ctrl,
+		.scdc = gm200_hdmi_scdc,
+	},
+	.dp = {
+		.lanes = { 0, 1, 2, 3 },
+		.links = gf119_sor_dp_links,
+		.power = g94_sor_dp_power,
+		.pattern = gm107_sor_dp_pattern,
+		.drive = gm200_sor_dp_drive,
+		.audio = gv100_sor_dp_audio,
+		.audio_sym = gv100_sor_dp_audio_sym,
+		.watermark = gv100_sor_dp_watermark,
+	},
+};
+
 int
 gv100_sor_new(struct nvkm_disp *disp, int id)
 {
+	struct nvkm_device *device = disp->engine.subdev.device;
+	u32 hda;
+
+	if (!((hda = nvkm_rd32(device, 0x08a15c)) & 0x40000000))
+		hda = nvkm_rd32(device, 0x118fb0) >> 8;
+
+	if (hda & BIT(id))
+		return nvkm_ior_new_(&gv100_sor_hda, disp, SOR, id);
 	return nvkm_ior_new_(&gv100_sor, disp, SOR, id);
 }
 

drivers/gpu/drm/nouveau/nvkm/engine/disp/sortu102.c

@@ -62,7 +62,7 @@ tu102_sor_dp_links(struct nvkm_ior *sor, struct nvkm_i2c_aux *aux)
 }
 
 static const struct nvkm_ior_func
-tu102_sor = {
+tu102_sor_hda = {
 	.route = {
 		.get = gm200_sor_route_get,
 		.set = gm200_sor_route_set,
@@ -92,8 +92,38 @@ tu102_sor = {
 	},
 };
 
+static const struct nvkm_ior_func
+tu102_sor = {
+	.route = {
+		.get = gm200_sor_route_get,
+		.set = gm200_sor_route_set,
+	},
+	.state = gv100_sor_state,
+	.power = nv50_sor_power,
+	.clock = gf119_sor_clock,
+	.hdmi = {
+		.ctrl = gv100_hdmi_ctrl,
+		.scdc = gm200_hdmi_scdc,
+	},
+	.dp = {
+		.lanes = { 0, 1, 2, 3 },
+		.links = tu102_sor_dp_links,
+		.power = g94_sor_dp_power,
+		.pattern = gm107_sor_dp_pattern,
+		.drive = gm200_sor_dp_drive,
+		.vcpi = tu102_sor_dp_vcpi,
+		.audio = gv100_sor_dp_audio,
+		.audio_sym = gv100_sor_dp_audio_sym,
+		.watermark = gv100_sor_dp_watermark,
+	},
+};
+
 int
 tu102_sor_new(struct nvkm_disp *disp, int id)
 {
+	struct nvkm_device *device = disp->engine.subdev.device;
+	u32 hda = nvkm_rd32(device, 0x08a15c);
+	if (hda & BIT(id))
+		return nvkm_ior_new_(&tu102_sor_hda, disp, SOR, id);
 	return nvkm_ior_new_(&tu102_sor, disp, SOR, id);
 }