drm/nouveau/mc: port to subdev interfaces

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

23 files changed, 543 insertions, 118 deletions

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 522bc1c1e4d..3ce81e5244a 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -69,9 +69,12 @@ nouveau-y += core/subdev/i2c/bit.o
 nouveau-y += core/subdev/instmem/nv04.o
 nouveau-y += core/subdev/instmem/nv50.o
 nouveau-y += core/subdev/instmem/nvc0.o
+nouveau-y += core/subdev/mc/base.o
 nouveau-y += core/subdev/mc/nv04.o
-nouveau-y += core/subdev/mc/nv40.o
+nouveau-y += core/subdev/mc/nv44.o
 nouveau-y += core/subdev/mc/nv50.o
+nouveau-y += core/subdev/mc/nv98.o
+nouveau-y += core/subdev/mc/nvc0.o
 nouveau-y += core/subdev/timer/nv04.o
 nouveau-y += core/subdev/vm/base.o
 nouveau-y += core/subdev/vm/nv50.o
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
new file mode 100644
index 00000000000..fded97cea50
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
@@ -0,0 +1,49 @@
+#ifndef __NOUVEAU_MC_H__
+#define __NOUVEAU_MC_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+
+struct nouveau_mc_intr {
+	u32 stat;
+	u32 unit;
+};
+
+struct nouveau_mc {
+	struct nouveau_subdev base;
+	const struct nouveau_mc_intr *intr_map;
+};
+
+static inline struct nouveau_mc *
+nouveau_mc(void *obj)
+{
+	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_MC];
+}
+
+#define nouveau_mc_create(p,e,o,d)                                             \
+	nouveau_subdev_create_((p), (e), (o), 0, "PMC", "master",              \
+			       sizeof(**d), (void **)d)
+#define nouveau_mc_destroy(p)                                                  \
+	nouveau_subdev_destroy(&(p)->base)
+#define nouveau_mc_init(p)                                                     \
+	nouveau_subdev_init(&(p)->base)
+#define nouveau_mc_fini(p,s)                                                   \
+	nouveau_subdev_fini(&(p)->base, (s))
+
+#define _nouveau_mc_dtor _nouveau_subdev_dtor
+#define _nouveau_mc_init _nouveau_subdev_init
+#define _nouveau_mc_fini _nouveau_subdev_fini
+
+extern struct nouveau_oclass nv04_mc_oclass;
+extern struct nouveau_oclass nv44_mc_oclass;
+extern struct nouveau_oclass nv50_mc_oclass;
+extern struct nouveau_oclass nv98_mc_oclass;
+extern struct nouveau_oclass nvc0_mc_oclass;
+
+void nouveau_mc_intr(struct nouveau_subdev *);
+
+extern const struct nouveau_mc_intr nv04_mc_intr[];
+int nv04_mc_init(struct nouveau_object *);
+int nv50_mc_init(struct nouveau_object *);
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/device/nv04.c
index 47f7841ecaa..c3820a8e93e 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nv04.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nv04.c
@@ -27,6 +27,7 @@
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
 #include <subdev/devinit.h>
+#include <subdev/mc.h>
 
 int
 nv04_identify(struct nouveau_device *device)
@@ -37,12 +38,14 @@ nv04_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv04_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x05:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv05_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown RIVA chipset\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nv10.c b/drivers/gpu/drm/nouveau/core/subdev/device/nv10.c
index ad481ebe7ea..94686f43118 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nv10.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nv10.c
@@ -28,6 +28,7 @@
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
 #include <subdev/devinit.h>
+#include <subdev/mc.h>
 
 int
 nv10_identify(struct nouveau_device *device)
@@ -39,6 +40,7 @@ nv10_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv10_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x15:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -46,6 +48,7 @@ nv10_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv10_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x16:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -53,6 +56,7 @@ nv10_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv10_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x1a:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -60,6 +64,7 @@ nv10_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x11:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -67,6 +72,7 @@ nv10_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv10_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x17:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -74,6 +80,7 @@ nv10_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv10_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x1f:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -81,6 +88,7 @@ nv10_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x18:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -88,6 +96,7 @@ nv10_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv10_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Celsius chipset\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nv20.c b/drivers/gpu/drm/nouveau/core/subdev/device/nv20.c
index 51ef1f4b9a5..d14041eb563 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nv20.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nv20.c
@@ -28,6 +28,7 @@
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
 #include <subdev/devinit.h>
+#include <subdev/mc.h>
 
 int
 nv20_identify(struct nouveau_device *device)
@@ -39,6 +40,7 @@ nv20_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x25:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -46,6 +48,7 @@ nv20_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x28:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -53,6 +56,7 @@ nv20_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x2a:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -60,6 +64,7 @@ nv20_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Kelvin chipset\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nv30.c b/drivers/gpu/drm/nouveau/core/subdev/device/nv30.c
index e812f71a931..a04a20d4672 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nv30.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nv30.c
@@ -28,6 +28,7 @@
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
 #include <subdev/devinit.h>
+#include <subdev/mc.h>
 
 int
 nv30_identify(struct nouveau_device *device)
@@ -39,6 +40,7 @@ nv30_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x35:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -46,6 +48,7 @@ nv30_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x31:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -53,6 +56,7 @@ nv30_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x36:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -60,6 +64,7 @@ nv30_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv20_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x34:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -67,6 +72,7 @@ nv30_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv10_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Rankine chipset\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/device/nv40.c
index 8d2b62cbdff..a8cc40898c6 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nv40.c
@@ -28,6 +28,7 @@
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
 #include <subdev/devinit.h>
+#include <subdev/mc.h>
 
 int
 nv40_identify(struct nouveau_device *device)
@@ -39,6 +40,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x41:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -46,6 +48,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x42:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -53,6 +56,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x43:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -60,6 +64,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x45:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -67,6 +72,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x47:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -74,6 +80,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x49:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -81,6 +88,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x4b:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -88,6 +96,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv04_mc_oclass;
 		break;
 	case 0x44:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -95,6 +104,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv44_mc_oclass;
 		break;
 	case 0x46:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -102,6 +112,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv44_mc_oclass;
 		break;
 	case 0x4a:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -109,6 +120,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv44_mc_oclass;
 		break;
 	case 0x4c:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -116,6 +128,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv44_mc_oclass;
 		break;
 	case 0x4e:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -123,6 +136,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv44_mc_oclass;
 		break;
 	case 0x63:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -130,6 +144,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv44_mc_oclass;
 		break;
 	case 0x67:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -137,6 +152,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv44_mc_oclass;
 		break;
 	case 0x68:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -144,6 +160,7 @@ nv40_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv1a_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv44_mc_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Curie chipset\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/device/nv50.c
index cb50d8629bb..eb5dfba7c74 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nv50.c
@@ -28,6 +28,7 @@
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
 #include <subdev/devinit.h>
+#include <subdev/mc.h>
 
 int
 nv50_identify(struct nouveau_device *device)
@@ -39,6 +40,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv50_mc_oclass;
 		break;
 	case 0x84:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -46,6 +48,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv50_mc_oclass;
 		break;
 	case 0x86:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -53,6 +56,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv50_mc_oclass;
 		break;
 	case 0x92:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -60,6 +64,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv50_mc_oclass;
 		break;
 	case 0x94:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -67,6 +72,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv50_mc_oclass;
 		break;
 	case 0x96:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -74,6 +80,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv50_mc_oclass;
 		break;
 	case 0x98:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -81,6 +88,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv98_mc_oclass;
 		break;
 	case 0xa0:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -88,6 +96,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv98_mc_oclass;
 		break;
 	case 0xaa:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -95,6 +104,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv98_mc_oclass;
 		break;
 	case 0xac:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -102,6 +112,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv98_mc_oclass;
 		break;
 	case 0xa3:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -109,6 +120,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv98_mc_oclass;
 		break;
 	case 0xa5:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -116,6 +128,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv98_mc_oclass;
 		break;
 	case 0xa8:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -123,6 +136,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv98_mc_oclass;
 		break;
 	case 0xaf:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -130,6 +144,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nv98_mc_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Tesla chipset\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/device/nvc0.c
index 67c46fc15b8..5efb4aa7ebc 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nvc0.c
@@ -28,6 +28,7 @@
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
 #include <subdev/devinit.h>
+#include <subdev/mc.h>
 
 int
 nvc0_identify(struct nouveau_device *device)
@@ -39,6 +40,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	case 0xc4:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -46,6 +48,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	case 0xc3:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -53,6 +56,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	case 0xce:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -60,6 +64,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	case 0xcf:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -67,6 +72,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	case 0xc1:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -74,6 +80,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	case 0xc8:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -81,6 +88,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	case 0xd9:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -88,6 +96,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Fermi chipset\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/device/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/device/nve0.c
index a1e87dfccf6..eb6ccba9fca 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/device/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/device/nve0.c
@@ -28,6 +28,7 @@
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
 #include <subdev/devinit.h>
+#include <subdev/mc.h>
 
 int
 nve0_identify(struct nouveau_device *device)
@@ -39,6 +40,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	case 0xe7:
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
@@ -46,6 +48,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] = &nvc0_mc_oclass;
 		break;
 	default:
 		nv_fatal(device, "unknown Kepler chipset\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
new file mode 100644
index 00000000000..de5721cfc4c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <subdev/mc.h>
+
+void
+nouveau_mc_intr(struct nouveau_subdev *subdev)
+{
+	struct nouveau_mc *pmc = nouveau_mc(subdev);
+	const struct nouveau_mc_intr *map = pmc->intr_map;
+	struct nouveau_subdev *unit;
+	u32 stat;
+
+	stat = nv_rd32(pmc, 0x000100);
+	while (stat && map->stat) {
+		if (stat & map->stat) {
+			unit = nouveau_subdev(subdev, map->unit);
+			if (unit && unit->intr)
+				unit->intr(unit);
+			stat &= ~map->stat;
+		}
+		map++;
+	}
+
+	if (stat) {
+		nv_error(pmc, "unknown intr 0x%08x\n", stat);
+	}
+}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c
index 60b146e4c53..23ebe477a6f 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c
@@ -1,24 +1,83 @@
-#include "drmP.h"
-#include "drm.h"
-#include "nouveau_drv.h"
-#include <nouveau_drm.h>
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
 
-int
-nv04_mc_init(struct drm_device *dev)
-{
-	/* Power up everything, resetting each individual unit will
-	 * be done later if needed.
-	 */
+#include <subdev/mc.h>
+
+struct nv04_mc_priv {
+	struct nouveau_mc base;
+};
 
-	nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
+const struct nouveau_mc_intr
+nv04_mc_intr[] = {
+	{ 0x00000001, NVDEV_ENGINE_MPEG },	/* NV17- MPEG/ME */
+	{ 0x00000100, NVDEV_ENGINE_FIFO },
+	{ 0x00001000, NVDEV_ENGINE_GR },
+	{ 0x00020000, NVDEV_ENGINE_VP },	/* NV40- */
+	{ 0x00100000, NVDEV_SUBDEV_TIMER },
+	{ 0x01000000, NVDEV_ENGINE_DISP },	/* NV04- PCRTC0 */
+	{ 0x02000000, NVDEV_ENGINE_DISP },	/* NV11- PCRTC1 */
+	{ 0x10000000, NVDEV_SUBDEV_GPIO },	/* PBUS */
+	{ 0x80000000, NVDEV_ENGINE_SW },
+	{}
+};
+
+static int
+nv04_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	     struct nouveau_oclass *oclass, void *data, u32 size,
+	     struct nouveau_object **pobject)
+{
+	struct nv04_mc_priv *priv;
+	int ret;
 
-	/* Disable PROM access. */
-	nv_wr32(dev, NV_PBUS_PCI_NV_20, NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
+	ret = nouveau_mc_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
 
+	nv_subdev(priv)->intr = nouveau_mc_intr;
+	priv->base.intr_map = nv04_mc_intr;
 	return 0;
 }
 
-void
-nv04_mc_takedown(struct drm_device *dev)
+int
+nv04_mc_init(struct nouveau_object *object)
 {
+	struct nv04_mc_priv *priv = (void *)object;
+
+	nv_wr32(priv, 0x000200, 0xffffffff); /* everything enabled */
+	nv_wr32(priv, 0x001850, 0x00000001); /* disable rom access */
+
+	return nouveau_mc_init(&priv->base);
 }
+
+struct nouveau_oclass
+nv04_mc_oclass = {
+	.handle = NV_SUBDEV(MC, 0x04),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv04_mc_ctor,
+		.dtor = _nouveau_mc_dtor,
+		.init = nv04_mc_init,
+		.fini = _nouveau_mc_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv40.c
deleted file mode 100644
index 74cfa03eddf..00000000000
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv40.c
+++ /dev/null
@@ -1,28 +0,0 @@
-#include "drmP.h"
-#include "drm.h"
-#include "nouveau_drv.h"
-#include <nouveau_drm.h>
-
-int
-nv40_mc_init(struct drm_device *dev)
-{
-	/* Power up everything, resetting each individual unit will
-	 * be done later if needed.
-	 */
-	nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
-
-	if (nv44_graph_class(dev)) {
-		u32 tmp = nv_rd32(dev, NV04_PFB_FIFO_DATA);
-		nv_wr32(dev, NV40_PMC_1700, tmp);
-		nv_wr32(dev, NV40_PMC_1704, 0);
-		nv_wr32(dev, NV40_PMC_1708, 0);
-		nv_wr32(dev, NV40_PMC_170C, tmp);
-	}
-
-	return 0;
-}
-
-void
-nv40_mc_takedown(struct drm_device *dev)
-{
-}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c
new file mode 100644
index 00000000000..397d868359a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <subdev/mc.h>
+
+struct nv44_mc_priv {
+	struct nouveau_mc base;
+};
+
+static int
+nv44_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	     struct nouveau_oclass *oclass, void *data, u32 size,
+	     struct nouveau_object **pobject)
+{
+	struct nv44_mc_priv *priv;
+	int ret;
+
+	ret = nouveau_mc_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->intr = nouveau_mc_intr;
+	priv->base.intr_map = nv04_mc_intr;
+	return 0;
+}
+
+static int
+nv44_mc_init(struct nouveau_object *object)
+{
+	struct nv44_mc_priv *priv = (void *)object;
+	u32 tmp = nv_rd32(priv, 0x10020c);
+
+	nv_wr32(priv, 0x000200, 0xffffffff); /* everything enabled */
+
+	nv_wr32(priv, 0x001700, tmp);
+	nv_wr32(priv, 0x001704, 0);
+	nv_wr32(priv, 0x001708, 0);
+	nv_wr32(priv, 0x00170c, tmp);
+
+	return nouveau_mc_init(&priv->base);
+}
+
+struct nouveau_oclass
+nv44_mc_oclass = {
+	.handle = NV_SUBDEV(MC, 0x44),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv44_mc_ctor,
+		.dtor = _nouveau_mc_dtor,
+		.init = nv44_mc_init,
+		.fini = _nouveau_mc_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
index e0a9c3faa20..cedf33b0297 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
@@ -1,40 +1,80 @@
 /*
- * Copyright (C) 2007 Ben Skeggs.
- * All Rights Reserved.
+ * Copyright 2012 Red Hat Inc.
  *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
  *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
  *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: Ben Skeggs
  */
 
-#include "drmP.h"
-#include "drm.h"
-#include "nouveau_drv.h"
+#include <subdev/mc.h>
 
-int
-nv50_mc_init(struct drm_device *dev)
+struct nv50_mc_priv {
+	struct nouveau_mc base;
+};
+
+static const struct nouveau_mc_intr
+nv50_mc_intr[] = {
+	{ 0x00000001, NVDEV_ENGINE_MPEG },
+	{ 0x00000100, NVDEV_ENGINE_FIFO },
+	{ 0x00001000, NVDEV_ENGINE_GR },
+	{ 0x00004000, NVDEV_ENGINE_CRYPT },	/* NV84- */
+	{ 0x00008000, NVDEV_ENGINE_BSP },	/* NV84- */
+	{ 0x00100000, NVDEV_SUBDEV_TIMER },
+	{ 0x00200000, NVDEV_SUBDEV_GPIO },
+	{ 0x04000000, NVDEV_ENGINE_DISP },
+	{ 0x80000000, NVDEV_ENGINE_SW },
+	{},
+};
+
+static int
+nv50_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	     struct nouveau_oclass *oclass, void *data, u32 size,
+	     struct nouveau_object **pobject)
 {
-	nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);
+	struct nv50_mc_priv *priv;
+	int ret;
+
+	ret = nouveau_mc_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->intr = nouveau_mc_intr;
+	priv->base.intr_map = nv50_mc_intr;
 	return 0;
 }
 
-void nv50_mc_takedown(struct drm_device *dev)
+int
+nv50_mc_init(struct nouveau_object *object)
 {
+	struct nv50_mc_priv *priv = (void *)object;
+	nv_wr32(priv, 0x000200, 0xffffffff); /* everything on */
+	return nouveau_mc_init(&priv->base);
 }
+
+struct nouveau_oclass
+nv50_mc_oclass = {
+	.handle = NV_SUBDEV(MC, 0x50),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv50_mc_ctor,
+		.dtor = _nouveau_mc_dtor,
+		.init = nv50_mc_init,
+		.fini = _nouveau_mc_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c
new file mode 100644
index 00000000000..a001e4c4d38
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <subdev/mc.h>
+
+struct nv98_mc_priv {
+	struct nouveau_mc base;
+};
+
+static const struct nouveau_mc_intr
+nv98_mc_intr[] = {
+	{ 0x00000001, NVDEV_ENGINE_PPP },
+	{ 0x00000100, NVDEV_ENGINE_FIFO },
+	{ 0x00001000, NVDEV_ENGINE_GR },
+	{ 0x00004000, NVDEV_ENGINE_CRYPT },	/* NV84:NVA3 */
+	{ 0x00008000, NVDEV_ENGINE_BSP },
+	{ 0x00100000, NVDEV_SUBDEV_TIMER },
+	{ 0x00200000, NVDEV_SUBDEV_GPIO },
+	{ 0x00400000, NVDEV_ENGINE_COPY0 },	/* NVA3-     */
+	{ 0x04000000, NVDEV_ENGINE_DISP },
+	{ 0x80000000, NVDEV_ENGINE_SW },
+	{},
+};
+
+static int
+nv98_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	     struct nouveau_oclass *oclass, void *data, u32 size,
+	     struct nouveau_object **pobject)
+{
+	struct nv98_mc_priv *priv;
+	int ret;
+
+	ret = nouveau_mc_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->intr = nouveau_mc_intr;
+	priv->base.intr_map = nv98_mc_intr;
+	return 0;
+}
+
+struct nouveau_oclass
+nv98_mc_oclass = {
+	.handle = NV_SUBDEV(MC, 0x98),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv98_mc_ctor,
+		.dtor = _nouveau_mc_dtor,
+		.init = nv50_mc_init,
+		.fini = _nouveau_mc_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
new file mode 100644
index 00000000000..3fa39bb9a72
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <subdev/mc.h>
+
+struct nvc0_mc_priv {
+	struct nouveau_mc base;
+};
+
+static const struct nouveau_mc_intr
+nvc0_mc_intr[] = {
+	{ 0x00000001, NVDEV_ENGINE_PPP },
+	{ 0x00000020, NVDEV_ENGINE_COPY0 },
+	{ 0x00000040, NVDEV_ENGINE_COPY1 },
+	{ 0x00000100, NVDEV_ENGINE_FIFO },
+	{ 0x00001000, NVDEV_ENGINE_GR },
+	{ 0x00008000, NVDEV_ENGINE_BSP },
+	{ 0x00100000, NVDEV_SUBDEV_TIMER },
+	{ 0x00200000, NVDEV_SUBDEV_GPIO },
+	{ 0x04000000, NVDEV_ENGINE_DISP },
+	{ 0x80000000, NVDEV_ENGINE_SW },
+	{},
+};
+
+static int
+nvc0_mc_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	     struct nouveau_oclass *oclass, void *data, u32 size,
+	     struct nouveau_object **pobject)
+{
+	struct nvc0_mc_priv *priv;
+	int ret;
+
+	ret = nouveau_mc_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	nv_subdev(priv)->intr = nouveau_mc_intr;
+	priv->base.intr_map = nvc0_mc_intr;
+	return 0;
+}
+
+struct nouveau_oclass
+nvc0_mc_oclass = {
+	.handle = NV_SUBDEV(MC, 0xc0),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nvc0_mc_ctor,
+		.dtor = _nouveau_mc_dtor,
+		.init = nv50_mc_init,
+		.fini = _nouveau_mc_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/nouveau_compat.c b/drivers/gpu/drm/nouveau/nouveau_compat.c
index 3fc7d5785c6..cfdc45c86e1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_compat.c
+++ b/drivers/gpu/drm/nouveau/nouveau_compat.c
@@ -8,6 +8,7 @@
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
 #include <subdev/clock.h>
+#include <subdev/mc.h>
 
 void *nouveau_newpriv(struct drm_device *);
 
@@ -293,3 +294,11 @@ nouveau_bios_init_exec(struct drm_device *dev, uint16_t table)
 {
 	nouveau_bios_run_init_table(dev, table, NULL, 0);
 }
+
+void
+nv_intr(struct drm_device *dev)
+{
+	struct nouveau_drm *drm = nouveau_newpriv(dev);
+	struct nouveau_mc *pmc = nouveau_mc(drm->device);
+	nv_subdev(pmc)->intr(pmc);
+}
diff --git a/drivers/gpu/drm/nouveau/nouveau_compat.h b/drivers/gpu/drm/nouveau/nouveau_compat.h
index 7ffad0a7a30..19995cdc8bb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_compat.h
+++ b/drivers/gpu/drm/nouveau/nouveau_compat.h
@@ -51,4 +51,6 @@ struct dcb_output;
 void nouveau_bios_run_init_table(struct drm_device *, u16, struct dcb_output *, int);
 void nouveau_bios_init_exec(struct drm_device *, u16);
 
+void nv_intr(struct drm_device *);
+
 #endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index 25487c148e4..d1251d8772e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -252,7 +252,6 @@ nouveau_pci_resume(struct pci_dev *pdev)
 
 	NV_INFO(dev, "Reinitialising engines...\n");
 	engine->instmem.resume(dev);
-	engine->mc.init(dev);
 	engine->timer.init(dev);
 	engine->fb.init(dev);
 	for (i = 0; i < NVOBJ_ENGINE_NR; i++) {
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index f6be94d323f..7722b03d8d3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -324,11 +324,6 @@ struct nouveau_instmem_engine {
 	void	(*flush)(struct drm_device *);
 };
 
-struct nouveau_mc_engine {
-	int  (*init)(struct drm_device *dev);
-	void (*takedown)(struct drm_device *dev);
-};
-
 struct nouveau_timer_engine {
 	int      (*init)(struct drm_device *dev);
 	void     (*takedown)(struct drm_device *dev);
@@ -544,7 +539,6 @@ struct nouveau_vram_engine {
 
 struct nouveau_engine {
 	struct nouveau_instmem_engine instmem;
-	struct nouveau_mc_engine      mc;
 	struct nouveau_timer_engine   timer;
 	struct nouveau_fb_engine      fb;
 	struct nouveau_display_engine display;
@@ -1210,18 +1204,6 @@ extern void nvc0_instmem_takedown(struct drm_device *);
 extern int  nvc0_instmem_suspend(struct drm_device *);
 extern void nvc0_instmem_resume(struct drm_device *);
 
-/* nv04_mc.c */
-extern int  nv04_mc_init(struct drm_device *);
-extern void nv04_mc_takedown(struct drm_device *);
-
-/* nv40_mc.c */
-extern int  nv40_mc_init(struct drm_device *);
-extern void nv40_mc_takedown(struct drm_device *);
-
-/* nv50_mc.c */
-extern int  nv50_mc_init(struct drm_device *);
-extern void nv50_mc_takedown(struct drm_device *);
-
 /* nv04_timer.c */
 extern int  nv04_timer_init(struct drm_device *);
 extern uint64_t nv04_timer_read(struct drm_device *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c
index d36be7a5107..1a75a96cef2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_irq.c
+++ b/drivers/gpu/drm/nouveau/nouveau_irq.c
@@ -87,12 +87,12 @@ nouveau_irq_handler(DRM_IRQ_ARGS)
 		stat &= ~(1 << i);
 	}
 
+	nv_intr(dev);
+
 	if (dev_priv->msi_enabled)
 		nv_wr08(dev, 0x00088068, 0xff);
 	spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
 
-	if (stat && nouveau_ratelimit())
-		NV_ERROR(dev, "PMC - unhandled INTR 0x%08x\n", stat);
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index 1a07655d1e9..e487747d70d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -61,8 +61,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->instmem.map		= nv04_instmem_map;
 		engine->instmem.unmap		= nv04_instmem_unmap;
 		engine->instmem.flush		= nv04_instmem_flush;
-		engine->mc.init			= nv04_mc_init;
-		engine->mc.takedown		= nv04_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -91,8 +89,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->instmem.map		= nv04_instmem_map;
 		engine->instmem.unmap		= nv04_instmem_unmap;
 		engine->instmem.flush		= nv04_instmem_flush;
-		engine->mc.init			= nv04_mc_init;
-		engine->mc.takedown		= nv04_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -128,8 +124,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->instmem.map		= nv04_instmem_map;
 		engine->instmem.unmap		= nv04_instmem_unmap;
 		engine->instmem.flush		= nv04_instmem_flush;
-		engine->mc.init			= nv04_mc_init;
-		engine->mc.takedown		= nv04_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -161,8 +155,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->instmem.map		= nv04_instmem_map;
 		engine->instmem.unmap		= nv04_instmem_unmap;
 		engine->instmem.flush		= nv04_instmem_flush;
-		engine->mc.init			= nv04_mc_init;
-		engine->mc.takedown		= nv04_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -197,8 +189,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->instmem.map		= nv04_instmem_map;
 		engine->instmem.unmap		= nv04_instmem_unmap;
 		engine->instmem.flush		= nv04_instmem_flush;
-		engine->mc.init			= nv40_mc_init;
-		engine->mc.takedown		= nv40_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -241,8 +231,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 			engine->instmem.flush	= nv50_instmem_flush;
 		else
 			engine->instmem.flush	= nv84_instmem_flush;
-		engine->mc.init			= nv50_mc_init;
-		engine->mc.takedown		= nv50_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -299,8 +287,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->instmem.map		= nv50_instmem_map;
 		engine->instmem.unmap		= nv50_instmem_unmap;
 		engine->instmem.flush		= nv84_instmem_flush;
-		engine->mc.init			= nv50_mc_init;
-		engine->mc.takedown		= nv50_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -336,8 +322,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->instmem.map		= nv50_instmem_map;
 		engine->instmem.unmap		= nv50_instmem_unmap;
 		engine->instmem.flush		= nv84_instmem_flush;
-		engine->mc.init			= nv50_mc_init;
-		engine->mc.takedown		= nv50_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -371,8 +355,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->instmem.map		= nv50_instmem_map;
 		engine->instmem.unmap		= nv50_instmem_unmap;
 		engine->instmem.flush		= nv84_instmem_flush;
-		engine->mc.init			= nv50_mc_init;
-		engine->mc.takedown		= nv50_mc_takedown;
 		engine->timer.init		= nv04_timer_init;
 		engine->timer.read		= nv04_timer_read;
 		engine->timer.takedown		= nv04_timer_takedown;
@@ -533,15 +515,10 @@ nouveau_card_init(struct drm_device *dev)
 		nv_mask(dev, 0x00088080, 0x00000800, 0x00000000);
 	}
 
-	/* PMC */
-	ret = engine->mc.init(dev);
-	if (ret)
-		goto out_bios;
-
 	/* PTIMER */
 	ret = engine->timer.init(dev);
 	if (ret)
-		goto out_mc;
+		goto out_bios;
 
 	/* PFB */
 	ret = engine->fb.init(dev);
@@ -795,8 +772,6 @@ out_fb:
 	engine->fb.takedown(dev);
 out_timer:
 	engine->timer.takedown(dev);
-out_mc:
-	engine->mc.takedown(dev);
 out_bios:
 	nouveau_bios_takedown(dev);
 out_display_early:
@@ -850,7 +825,6 @@ static void nouveau_card_takedown(struct drm_device *dev)
 	engine->vram.takedown(dev);
 	engine->fb.takedown(dev);
 	engine->timer.takedown(dev);
-	engine->mc.takedown(dev);
 
 	nouveau_bios_takedown(dev);
 	engine->display.late_takedown(dev);