drm/nouveau/ltc: s/ltcg/ltc/ + cleanup

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

17 files changed, 362 insertions, 235 deletions

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 029e0555fa38..1a44d952cc3a 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -153,8 +153,10 @@ nouveau-y += core/subdev/instmem/base.o
 nouveau-y += core/subdev/instmem/nv04.o
 nouveau-y += core/subdev/instmem/nv40.o
 nouveau-y += core/subdev/instmem/nv50.o
-nouveau-y += core/subdev/ltcg/gf100.o
-nouveau-y += core/subdev/ltcg/gm107.o
+nouveau-y += core/subdev/ltc/base.o
+nouveau-y += core/subdev/ltc/gf100.o
+nouveau-y += core/subdev/ltc/gk104.o
+nouveau-y += core/subdev/ltc/gm107.o
 nouveau-y += core/subdev/mc/base.o
 nouveau-y += core/subdev/mc/nv04.o
 nouveau-y += core/subdev/mc/nv40.o
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/base.c b/drivers/gpu/drm/nouveau/core/engine/device/base.c
index e4e089b65a01..8928f7981d4a 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/base.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/base.c
@@ -214,7 +214,7 @@ static const u64 disable_map[] = {
 	[NVDEV_SUBDEV_BUS]	= NV_DEVICE_V0_DISABLE_CORE,
 	[NVDEV_SUBDEV_TIMER]	= NV_DEVICE_V0_DISABLE_CORE,
 	[NVDEV_SUBDEV_FB]	= NV_DEVICE_V0_DISABLE_CORE,
-	[NVDEV_SUBDEV_LTCG]	= NV_DEVICE_V0_DISABLE_CORE,
+	[NVDEV_SUBDEV_LTC]	= NV_DEVICE_V0_DISABLE_CORE,
 	[NVDEV_SUBDEV_IBUS]	= NV_DEVICE_V0_DISABLE_CORE,
 	[NVDEV_SUBDEV_INSTMEM]	= NV_DEVICE_V0_DISABLE_CORE,
 	[NVDEV_SUBDEV_VM]	= NV_DEVICE_V0_DISABLE_CORE,
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/gm100.c b/drivers/gpu/drm/nouveau/core/engine/device/gm100.c
index 091f3e12ffc6..377ec0b8851e 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/gm100.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/gm100.c
@@ -33,7 +33,7 @@
 #include <subdev/mc.h>
 #include <subdev/timer.h>
 #include <subdev/fb.h>
-#include <subdev/ltcg.h>
+#include <subdev/ltc.h>
 #include <subdev/ibus.h>
 #include <subdev/instmem.h>
 #include <subdev/vm.h>
@@ -72,7 +72,7 @@ gm100_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &gk20a_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gm107_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gm107_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gm107_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nve0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
index 1d741faa6fe0..b4a2917ce555 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
@@ -33,7 +33,7 @@
 #include <subdev/mc.h>
 #include <subdev/timer.h>
 #include <subdev/fb.h>
-#include <subdev/ltcg.h>
+#include <subdev/ltc.h>
 #include <subdev/ibus.h>
 #include <subdev/instmem.h>
 #include <subdev/vm.h>
@@ -70,7 +70,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -102,7 +102,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -134,7 +134,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -165,7 +165,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -197,7 +197,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -229,7 +229,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -260,7 +260,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -292,7 +292,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -323,7 +323,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gf100_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nvc0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
index 51b6af6c956a..54ec53bc6252 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c
@@ -33,7 +33,7 @@
 #include <subdev/mc.h>
 #include <subdev/timer.h>
 #include <subdev/fb.h>
-#include <subdev/ltcg.h>
+#include <subdev/ltc.h>
 #include <subdev/ibus.h>
 #include <subdev/instmem.h>
 #include <subdev/vm.h>
@@ -70,7 +70,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nve0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nve0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -103,7 +103,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nve0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nve0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -136,7 +136,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nve0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nve0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -187,7 +187,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nve0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nve0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -220,7 +220,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nve0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nve0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
@@ -253,7 +253,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nve0_fb_oclass;
-		device->oclass[NVDEV_SUBDEV_LTCG   ] =  gf100_ltcg_oclass;
+		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
 		device->oclass[NVDEV_SUBDEV_IBUS   ] = &nve0_ibus_oclass;
 		device->oclass[NVDEV_SUBDEV_INSTMEM] =  nv50_instmem_oclass;
 		device->oclass[NVDEV_SUBDEV_VM     ] = &nvc0_vmmgr_oclass;
diff --git a/drivers/gpu/drm/nouveau/core/include/core/device.h b/drivers/gpu/drm/nouveau/core/include/core/device.h
index aa62b637c389..8743766454a5 100644
--- a/drivers/gpu/drm/nouveau/core/include/core/device.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/device.h
@@ -29,7 +29,7 @@ enum nv_subdev_type {
 	NVDEV_SUBDEV_BUS,
 	NVDEV_SUBDEV_TIMER,
 	NVDEV_SUBDEV_FB,
-	NVDEV_SUBDEV_LTCG,
+	NVDEV_SUBDEV_LTC,
 	NVDEV_SUBDEV_IBUS,
 	NVDEV_SUBDEV_INSTMEM,
 	NVDEV_SUBDEV_VM,
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/ltc.h b/drivers/gpu/drm/nouveau/core/include/subdev/ltc.h
new file mode 100644
index 000000000000..de9ac0325c6e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/ltc.h
@@ -0,0 +1,28 @@
+#ifndef __NOUVEAU_LTC_H__
+#define __NOUVEAU_LTC_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+
+struct nouveau_mm_node;
+
+struct nouveau_ltc {
+	struct nouveau_subdev base;
+
+	int  (*tags_alloc)(struct nouveau_ltc *, u32 count,
+	                   struct nouveau_mm_node **);
+	void (*tags_free)(struct nouveau_ltc *, struct nouveau_mm_node **);
+	void (*tags_clear)(struct nouveau_ltc *, u32 first, u32 count);
+};
+
+static inline struct nouveau_ltc *
+nouveau_ltc(void *obj)
+{
+	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_LTC];
+}
+
+extern struct nouveau_oclass *gf100_ltc_oclass;
+extern struct nouveau_oclass *gk104_ltc_oclass;
+extern struct nouveau_oclass *gm107_ltc_oclass;
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/ltcg.h b/drivers/gpu/drm/nouveau/core/include/subdev/ltcg.h
deleted file mode 100644
index c9c1950b7743..000000000000
--- a/drivers/gpu/drm/nouveau/core/include/subdev/ltcg.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef __NOUVEAU_LTCG_H__
-#define __NOUVEAU_LTCG_H__
-
-#include <core/subdev.h>
-#include <core/device.h>
-
-struct nouveau_mm_node;
-
-struct nouveau_ltcg {
-	struct nouveau_subdev base;
-
-	int  (*tags_alloc)(struct nouveau_ltcg *, u32 count,
-	                   struct nouveau_mm_node **);
-	void (*tags_free)(struct nouveau_ltcg *, struct nouveau_mm_node **);
-	void (*tags_clear)(struct nouveau_ltcg *, u32 first, u32 count);
-};
-
-static inline struct nouveau_ltcg *
-nouveau_ltcg(void *obj)
-{
-	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_LTCG];
-}
-
-#define nouveau_ltcg_create(p,e,o,d)                                           \
-	nouveau_subdev_create_((p), (e), (o), 0, "PLTCG", "level2",            \
-			       sizeof(**d), (void **)d)
-#define nouveau_ltcg_destroy(p)                                                \
-	nouveau_subdev_destroy(&(p)->base)
-#define nouveau_ltcg_init(p)                                                   \
-	nouveau_subdev_init(&(p)->base)
-#define nouveau_ltcg_fini(p,s)                                                 \
-	nouveau_subdev_fini(&(p)->base, (s))
-
-#define _nouveau_ltcg_dtor _nouveau_subdev_dtor
-#define _nouveau_ltcg_init _nouveau_subdev_init
-#define _nouveau_ltcg_fini _nouveau_subdev_fini
-
-extern struct nouveau_oclass *gf100_ltcg_oclass;
-extern struct nouveau_oclass *gm107_ltcg_oclass;
-
-#endif
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
index 5a6a5027f749..946518572346 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
@@ -26,7 +26,7 @@
 #include <subdev/bios/pll.h>
 #include <subdev/bios/rammap.h>
 #include <subdev/bios/timing.h>
-#include <subdev/ltcg.h>
+#include <subdev/ltc.h>
 
 #include <subdev/clock.h>
 #include <subdev/clock/pll.h>
@@ -425,7 +425,7 @@ extern const u8 nvc0_pte_storage_type_map[256];
 void
 nvc0_ram_put(struct nouveau_fb *pfb, struct nouveau_mem **pmem)
 {
-	struct nouveau_ltcg *ltcg = nouveau_ltcg(pfb);
+	struct nouveau_ltc *ltc = nouveau_ltc(pfb);
 	struct nouveau_mem *mem = *pmem;
 
 	*pmem = NULL;
@@ -434,7 +434,7 @@ nvc0_ram_put(struct nouveau_fb *pfb, struct nouveau_mem **pmem)
 
 	mutex_lock(&pfb->base.mutex);
 	if (mem->tag)
-		ltcg->tags_free(ltcg, &mem->tag);
+		ltc->tags_free(ltc, &mem->tag);
 	__nv50_ram_put(pfb, mem);
 	mutex_unlock(&pfb->base.mutex);
 
@@ -468,12 +468,12 @@ nvc0_ram_get(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin,
 
 	mutex_lock(&pfb->base.mutex);
 	if (comp) {
-		struct nouveau_ltcg *ltcg = nouveau_ltcg(pfb);
+		struct nouveau_ltc *ltc = nouveau_ltc(pfb);
 
 		/* compression only works with lpages */
 		if (align == (1 << (17 - 12))) {
 			int n = size >> 5;
-			ltcg->tags_alloc(ltcg, n, &mem->tag);
+			ltc->tags_alloc(ltc, n, &mem->tag);
 		}
 
 		if (unlikely(!mem->tag))
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltc/base.c b/drivers/gpu/drm/nouveau/core/subdev/ltc/base.c
new file mode 100644
index 000000000000..c99bf3f7352f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/ltc/base.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2014 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 <bskeggs@redhat.com>
+ */
+
+#include "priv.h"
+
+static int
+nvkm_ltc_tags_alloc(struct nouveau_ltc *ltc, u32 n,
+		    struct nouveau_mm_node **pnode)
+{
+	struct nvkm_ltc_priv *priv = (void *)ltc;
+	int ret;
+
+	ret = nouveau_mm_head(&priv->tags, 1, n, n, 1, pnode);
+	if (ret)
+		*pnode = NULL;
+
+	return ret;
+}
+
+static void
+nvkm_ltc_tags_free(struct nouveau_ltc *ltc, struct nouveau_mm_node **pnode)
+{
+	struct nvkm_ltc_priv *priv = (void *)ltc;
+	nouveau_mm_free(&priv->tags, pnode);
+}
+
+static void
+nvkm_ltc_tags_clear(struct nouveau_ltc *ltc, u32 first, u32 count)
+{
+	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc);
+	struct nvkm_ltc_priv *priv = (void *)ltc;
+	const u32 limit = first + count - 1;
+
+	BUG_ON((first > limit) || (limit >= priv->num_tags));
+
+	impl->cbc_clear(priv, first, limit);
+	impl->cbc_wait(priv);
+}
+
+int
+nvkm_ltc_create_(struct nouveau_object *parent, struct nouveau_object *engine,
+		 struct nouveau_oclass *oclass, int length, void **pobject)
+{
+	const struct nvkm_ltc_impl *impl = (void *)oclass;
+	struct nvkm_ltc_priv *priv;
+	int ret;
+
+	ret = nouveau_subdev_create_(parent, engine, oclass, 0, "PLTCG",
+				     "l2c", length, pobject);
+	priv = *pobject;
+	if (ret)
+		return ret;
+
+	priv->base.base.intr = impl->intr;
+	priv->base.tags_alloc = nvkm_ltc_tags_alloc;
+	priv->base.tags_free = nvkm_ltc_tags_free;
+	priv->base.tags_clear = nvkm_ltc_tags_clear;
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltcg/gf100.c b/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c
index f2f3338a967a..f72ab8191d9d 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/ltcg/gf100.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/ltc/gf100.c
@@ -25,10 +25,28 @@
 #include <subdev/fb.h>
 #include <subdev/timer.h>
 
-#include "gf100.h"
+#include "priv.h"
+
+void
+gf100_ltc_cbc_clear(struct nvkm_ltc_priv *priv, u32 start, u32 limit)
+{
+	nv_wr32(priv, 0x17e8cc, start);
+	nv_wr32(priv, 0x17e8d0, limit);
+	nv_wr32(priv, 0x17e8c8, 0x00000004);
+}
+
+void
+gf100_ltc_cbc_wait(struct nvkm_ltc_priv *priv)
+{
+	int c, s;
+	for (c = 0; c < priv->ltc_nr; c++) {
+		for (s = 0; s < priv->lts_nr; s++)
+			nv_wait(priv, 0x1410c8 + c * 0x2000 + s * 0x400, ~0, 0);
+	}
+}
 
 static void
-gf100_ltcg_lts_isr(struct gf100_ltcg_priv *priv, int ltc, int lts)
+gf100_ltc_lts_isr(struct nvkm_ltc_priv *priv, int ltc, int lts)
 {
 	u32 base = 0x141000 + (ltc * 0x2000) + (lts * 0x400);
 	u32 stat = nv_rd32(priv, base + 0x020);
@@ -39,17 +57,17 @@ gf100_ltcg_lts_isr(struct gf100_ltcg_priv *priv, int ltc, int lts)
 	}
 }
 
-static void
-gf100_ltcg_intr(struct nouveau_subdev *subdev)
+void
+gf100_ltc_intr(struct nouveau_subdev *subdev)
 {
-	struct gf100_ltcg_priv *priv = (void *)subdev;
+	struct nvkm_ltc_priv *priv = (void *)subdev;
 	u32 mask;
 
 	mask = nv_rd32(priv, 0x00017c);
 	while (mask) {
 		u32 lts, ltc = __ffs(mask);
 		for (lts = 0; lts < priv->lts_nr; lts++)
-			gf100_ltcg_lts_isr(priv, ltc, lts);
+			gf100_ltc_lts_isr(priv, ltc, lts);
 		mask &= ~(1 << ltc);
 	}
 
@@ -59,52 +77,38 @@ gf100_ltcg_intr(struct nouveau_subdev *subdev)
 	nv_mask(priv, 0x000640, 0x02000000, 0x00000000);
 }
 
-int
-gf100_ltcg_tags_alloc(struct nouveau_ltcg *ltcg, u32 n,
-		     struct nouveau_mm_node **pnode)
+static int
+gf100_ltc_init(struct nouveau_object *object)
 {
-	struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
+	struct nvkm_ltc_priv *priv = (void *)object;
 	int ret;
 
-	ret = nouveau_mm_head(&priv->tags, 1, n, n, 1, pnode);
+	ret = nvkm_ltc_init(priv);
 	if (ret)
-		*pnode = NULL;
+		return ret;
 
-	return ret;
+	nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
+	nv_wr32(priv, 0x17e8d8, priv->ltc_nr);
+	nv_wr32(priv, 0x17e8d4, priv->tag_base);
+	return 0;
 }
 
 void
-gf100_ltcg_tags_free(struct nouveau_ltcg *ltcg, struct nouveau_mm_node **pnode)
+gf100_ltc_dtor(struct nouveau_object *object)
 {
-	struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
-
-	nouveau_mm_free(&priv->tags, pnode);
-}
+	struct nouveau_fb *pfb = nouveau_fb(object);
+	struct nvkm_ltc_priv *priv = (void *)object;
 
-static void
-gf100_ltcg_tags_clear(struct nouveau_ltcg *ltcg, u32 first, u32 count)
-{
-	struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
-	u32 last = first + count - 1;
-	int p, i;
-
-	BUG_ON((first > last) || (last >= priv->num_tags));
-
-	nv_wr32(priv, 0x17e8cc, first);
-	nv_wr32(priv, 0x17e8d0, last);
-	nv_wr32(priv, 0x17e8c8, 0x4); /* trigger clear */
+	nouveau_mm_fini(&priv->tags);
+	nouveau_mm_free(&pfb->vram, &priv->tag_ram);
 
-	/* wait until it's finished with clearing */
-	for (p = 0; p < priv->ltc_nr; ++p) {
-		for (i = 0; i < priv->lts_nr; ++i)
-			nv_wait(priv, 0x1410c8 + p * 0x2000 + i * 0x400, ~0, 0);
-	}
+	nvkm_ltc_destroy(priv);
 }
 
 /* TODO: Figure out tag memory details and drop the over-cautious allocation.
  */
 int
-gf100_ltcg_init_tag_ram(struct nouveau_fb *pfb, struct gf100_ltcg_priv *priv)
+gf100_ltc_init_tag_ram(struct nouveau_fb *pfb, struct nvkm_ltc_priv *priv)
 {
 	u32 tag_size, tag_margin, tag_align;
 	int ret;
@@ -142,22 +146,22 @@ gf100_ltcg_init_tag_ram(struct nouveau_fb *pfb, struct gf100_ltcg_priv *priv)
 
 		priv->tag_base = tag_base;
 	}
-	ret = nouveau_mm_init(&priv->tags, 0, priv->num_tags, 1);
 
+	ret = nouveau_mm_init(&priv->tags, 0, priv->num_tags, 1);
 	return ret;
 }
 
-static int
-gf100_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+int
+gf100_ltc_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 	       struct nouveau_oclass *oclass, void *data, u32 size,
 	       struct nouveau_object **pobject)
 {
-	struct gf100_ltcg_priv *priv;
 	struct nouveau_fb *pfb = nouveau_fb(parent);
+	struct nvkm_ltc_priv *priv;
 	u32 parts, mask;
 	int ret, i;
 
-	ret = nouveau_ltcg_create(parent, engine, oclass, &priv);
+	ret = nvkm_ltc_create(parent, engine, oclass, &priv);
 	*pobject = nv_object(priv);
 	if (ret)
 		return ret;
@@ -170,57 +174,24 @@ gf100_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 	}
 	priv->lts_nr = nv_rd32(priv, 0x17e8dc) >> 28;
 
-	ret = gf100_ltcg_init_tag_ram(pfb, priv);
+	ret = gf100_ltc_init_tag_ram(pfb, priv);
 	if (ret)
 		return ret;
 
-	priv->base.tags_alloc = gf100_ltcg_tags_alloc;
-	priv->base.tags_free  = gf100_ltcg_tags_free;
-	priv->base.tags_clear = gf100_ltcg_tags_clear;
-
-	nv_subdev(priv)->intr = gf100_ltcg_intr;
-	return 0;
-}
-
-void
-gf100_ltcg_dtor(struct nouveau_object *object)
-{
-	struct nouveau_ltcg *ltcg = (struct nouveau_ltcg *)object;
-	struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
-	struct nouveau_fb *pfb = nouveau_fb(ltcg->base.base.parent);
-
-	nouveau_mm_fini(&priv->tags);
-	nouveau_mm_free(&pfb->vram, &priv->tag_ram);
-
-	nouveau_ltcg_destroy(ltcg);
-}
-
-static int
-gf100_ltcg_init(struct nouveau_object *object)
-{
-	struct nouveau_ltcg *ltcg = (struct nouveau_ltcg *)object;
-	struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
-	int ret;
-
-	ret = nouveau_ltcg_init(ltcg);
-	if (ret)
-		return ret;
-
-	nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
-	nv_wr32(priv, 0x17e8d8, priv->ltc_nr);
-	if (nv_device(ltcg)->card_type >= NV_E0)
-		nv_wr32(priv, 0x17e000, priv->ltc_nr);
-	nv_wr32(priv, 0x17e8d4, priv->tag_base);
+	nv_subdev(priv)->intr = gf100_ltc_intr;
 	return 0;
 }
 
 struct nouveau_oclass *
-gf100_ltcg_oclass = &(struct nouveau_oclass) {
-	.handle = NV_SUBDEV(LTCG, 0xc0),
-	.ofuncs = &(struct nouveau_ofuncs) {
-		.ctor = gf100_ltcg_ctor,
-		.dtor = gf100_ltcg_dtor,
-		.init = gf100_ltcg_init,
-		.fini = _nouveau_ltcg_fini,
+gf100_ltc_oclass = &(struct nvkm_ltc_impl) {
+	.base.handle = NV_SUBDEV(LTC, 0xc0),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gf100_ltc_ctor,
+		.dtor = gf100_ltc_dtor,
+		.init = gf100_ltc_init,
+		.fini = _nvkm_ltc_fini,
 	},
-};
+	.intr = gf100_ltc_intr,
+	.cbc_clear = gf100_ltc_cbc_clear,
+	.cbc_wait = gf100_ltc_cbc_wait,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltc/gk104.c b/drivers/gpu/drm/nouveau/core/subdev/ltc/gk104.c
new file mode 100644
index 000000000000..063caf791800
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/ltc/gk104.c
@@ -0,0 +1,55 @@
+/*
+ * 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 "priv.h"
+
+static int
+gk104_ltc_init(struct nouveau_object *object)
+{
+	struct nvkm_ltc_priv *priv = (void *)object;
+	int ret;
+
+	ret = nvkm_ltc_init(priv);
+	if (ret)
+		return ret;
+
+	nv_wr32(priv, 0x17e8d8, priv->ltc_nr);
+	nv_wr32(priv, 0x17e000, priv->ltc_nr);
+	nv_wr32(priv, 0x17e8d4, priv->tag_base);
+	return 0;
+}
+
+struct nouveau_oclass *
+gk104_ltc_oclass = &(struct nvkm_ltc_impl) {
+	.base.handle = NV_SUBDEV(LTC, 0xe4),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gf100_ltc_ctor,
+		.dtor = gf100_ltc_dtor,
+		.init = gk104_ltc_init,
+		.fini = _nvkm_ltc_fini,
+	},
+	.intr = gf100_ltc_intr,
+	.cbc_clear = gf100_ltc_cbc_clear,
+	.cbc_wait = gf100_ltc_cbc_wait,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltcg/gm107.c b/drivers/gpu/drm/nouveau/core/subdev/ltc/gm107.c
index e79d0e81de40..c05333ebaff2 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/ltcg/gm107.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/ltc/gm107.c
@@ -25,10 +25,28 @@
 #include <subdev/fb.h>
 #include <subdev/timer.h>
 
-#include "gf100.h"
+#include "priv.h"
 
 static void
-gm107_ltcg_lts_isr(struct gf100_ltcg_priv *priv, int ltc, int lts)
+gm107_ltc_cbc_clear(struct nvkm_ltc_priv *priv, u32 start, u32 limit)
+{
+	nv_wr32(priv, 0x17e270, start);
+	nv_wr32(priv, 0x17e274, limit);
+	nv_wr32(priv, 0x17e26c, 0x00000004);
+}
+
+static void
+gm107_ltc_cbc_wait(struct nvkm_ltc_priv *priv)
+{
+	int c, s;
+	for (c = 0; c < priv->ltc_nr; c++) {
+		for (s = 0; s < priv->lts_nr; s++)
+			nv_wait(priv, 0x14046c + c * 0x2000 + s * 0x200, ~0, 0);
+	}
+}
+
+static void
+gm107_ltc_lts_isr(struct nvkm_ltc_priv *priv, int ltc, int lts)
 {
 	u32 base = 0x140000 + (ltc * 0x2000) + (lts * 0x400);
 	u32 stat = nv_rd32(priv, base + 0x00c);
@@ -40,16 +58,16 @@ gm107_ltcg_lts_isr(struct gf100_ltcg_priv *priv, int ltc, int lts)
 }
 
 static void
-gm107_ltcg_intr(struct nouveau_subdev *subdev)
+gm107_ltc_intr(struct nouveau_subdev *subdev)
 {
-	struct gf100_ltcg_priv *priv = (void *)subdev;
+	struct nvkm_ltc_priv *priv = (void *)subdev;
 	u32 mask;
 
 	mask = nv_rd32(priv, 0x00017c);
 	while (mask) {
 		u32 lts, ltc = __ffs(mask);
 		for (lts = 0; lts < priv->lts_nr; lts++)
-			gm107_ltcg_lts_isr(priv, ltc, lts);
+			gm107_ltc_lts_isr(priv, ltc, lts);
 		mask &= ~(1 << ltc);
 	}
 
@@ -59,37 +77,32 @@ gm107_ltcg_intr(struct nouveau_subdev *subdev)
 	nv_mask(priv, 0x000640, 0x02000000, 0x00000000);
 }
 
-static void
-gm107_ltcg_tags_clear(struct nouveau_ltcg *ltcg, u32 first, u32 count)
+static int
+gm107_ltc_init(struct nouveau_object *object)
 {
-	struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
-	u32 last = first + count - 1;
-	int p, i;
-
-	BUG_ON((first > last) || (last >= priv->num_tags));
+	struct nvkm_ltc_priv *priv = (void *)object;
+	int ret;
 
-	nv_wr32(priv, 0x17e270, first);
-	nv_wr32(priv, 0x17e274, last);
-	nv_wr32(priv, 0x17e26c, 0x4); /* trigger clear */
+	ret = nvkm_ltc_init(priv);
+	if (ret)
+		return ret;
 
-	/* wait until it's finished with clearing */
-	for (p = 0; p < priv->ltc_nr; ++p) {
-		for (i = 0; i < priv->lts_nr; ++i)
-			nv_wait(priv, 0x14046c + p * 0x2000 + i * 0x200, ~0, 0);
-	}
+	nv_wr32(priv, 0x17e27c, priv->ltc_nr);
+	nv_wr32(priv, 0x17e278, priv->tag_base);
+	return 0;
 }
 
 static int
-gm107_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+gm107_ltc_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 	       struct nouveau_oclass *oclass, void *data, u32 size,
 	       struct nouveau_object **pobject)
 {
-	struct gf100_ltcg_priv *priv;
 	struct nouveau_fb *pfb = nouveau_fb(parent);
+	struct nvkm_ltc_priv *priv;
 	u32 parts, mask;
 	int ret, i;
 
-	ret = nouveau_ltcg_create(parent, engine, oclass, &priv);
+	ret = nvkm_ltc_create(parent, engine, oclass, &priv);
 	*pobject = nv_object(priv);
 	if (ret)
 		return ret;
@@ -102,41 +115,23 @@ gm107_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 	}
 	priv->lts_nr = nv_rd32(priv, 0x17e280) >> 28;
 
-	ret = gf100_ltcg_init_tag_ram(pfb, priv);
-	if (ret)
-		return ret;
-
-	priv->base.tags_alloc = gf100_ltcg_tags_alloc;
-	priv->base.tags_free  = gf100_ltcg_tags_free;
-	priv->base.tags_clear = gm107_ltcg_tags_clear;
-
-	nv_subdev(priv)->intr = gm107_ltcg_intr;
-	return 0;
-}
-
-static int
-gm107_ltcg_init(struct nouveau_object *object)
-{
-	struct nouveau_ltcg *ltcg = (struct nouveau_ltcg *)object;
-	struct gf100_ltcg_priv *priv = (struct gf100_ltcg_priv *)ltcg;
-	int ret;
-
-	ret = nouveau_ltcg_init(ltcg);
+	ret = gf100_ltc_init_tag_ram(pfb, priv);
 	if (ret)
 		return ret;
 
-	nv_wr32(priv, 0x17e27c, priv->ltc_nr);
-	nv_wr32(priv, 0x17e278, priv->tag_base);
 	return 0;
 }
 
 struct nouveau_oclass *
-gm107_ltcg_oclass = &(struct nouveau_oclass) {
-	.handle = NV_SUBDEV(LTCG, 0xff),
-	.ofuncs = &(struct nouveau_ofuncs) {
-		.ctor = gm107_ltcg_ctor,
-		.dtor = gf100_ltcg_dtor,
-		.init = gm107_ltcg_init,
-		.fini = _nouveau_ltcg_fini,
+gm107_ltc_oclass = &(struct nvkm_ltc_impl) {
+	.base.handle = NV_SUBDEV(LTC, 0xff),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gm107_ltc_ctor,
+		.dtor = gf100_ltc_dtor,
+		.init = gm107_ltc_init,
+		.fini = _nvkm_ltc_fini,
 	},
-};
+	.intr = gm107_ltc_intr,
+	.cbc_clear = gm107_ltc_cbc_clear,
+	.cbc_wait = gm107_ltc_cbc_wait,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltc/priv.h b/drivers/gpu/drm/nouveau/core/subdev/ltc/priv.h
new file mode 100644
index 000000000000..96d12a220400
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/ltc/priv.h
@@ -0,0 +1,58 @@
+#ifndef __NVKM_LTC_PRIV_H__
+#define __NVKM_LTC_PRIV_H__
+
+#include <subdev/ltc.h>
+#include <subdev/fb.h>
+
+struct nvkm_ltc_priv {
+	struct nouveau_ltc base;
+	u32 ltc_nr;
+	u32 lts_nr;
+	u32 num_tags;
+	u32 tag_base;
+	struct nouveau_mm tags;
+	struct nouveau_mm_node *tag_ram;
+};
+
+#define nvkm_ltc_create(p,e,o,d)                                               \
+	nvkm_ltc_create_((p), (e), (o), sizeof(**d), (void **)d)
+#define nvkm_ltc_destroy(p) ({                                                 \
+	struct nvkm_ltc_priv *_priv = (p);                                     \
+	_nvkm_ltc_dtor(nv_object(_priv));                                      \
+})
+#define nvkm_ltc_init(p) ({                                                    \
+	struct nvkm_ltc_priv *_priv = (p);                                     \
+	_nvkm_ltc_init(nv_object(_priv));                                      \
+})
+#define nvkm_ltc_fini(p,s) ({                                                  \
+	struct nvkm_ltc_priv *_priv = (p);                                     \
+	_nvkm_ltc_fini(nv_object(_priv), (s));                                 \
+})
+
+int  nvkm_ltc_create_(struct nouveau_object *, struct nouveau_object *,
+		      struct nouveau_oclass *, int, void **);
+
+#define _nvkm_ltc_dtor _nouveau_subdev_dtor
+#define _nvkm_ltc_init _nouveau_subdev_init
+#define _nvkm_ltc_fini _nouveau_subdev_fini
+
+int  gf100_ltc_ctor(struct nouveau_object *, struct nouveau_object *,
+		    struct nouveau_oclass *, void *, u32,
+		    struct nouveau_object **);
+void gf100_ltc_dtor(struct nouveau_object *);
+int  gf100_ltc_init_tag_ram(struct nouveau_fb *, struct nvkm_ltc_priv *);
+int  gf100_ltc_tags_alloc(struct nouveau_ltc *, u32, struct nouveau_mm_node **);
+void gf100_ltc_tags_free(struct nouveau_ltc *, struct nouveau_mm_node **);
+
+struct nvkm_ltc_impl {
+	struct nouveau_oclass base;
+	void (*intr)(struct nouveau_subdev *);
+	void (*cbc_clear)(struct nvkm_ltc_priv *, u32 start, u32 limit);
+	void (*cbc_wait)(struct nvkm_ltc_priv *);
+};
+
+void gf100_ltc_intr(struct nouveau_subdev *);
+void gf100_ltc_cbc_clear(struct nvkm_ltc_priv *, u32, u32);
+void gf100_ltc_cbc_wait(struct nvkm_ltc_priv *);
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltcg/gf100.h b/drivers/gpu/drm/nouveau/core/subdev/ltcg/gf100.h
deleted file mode 100644
index 87b10b8412ea..000000000000
--- a/drivers/gpu/drm/nouveau/core/subdev/ltcg/gf100.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef __NVKM_LTCG_PRIV_GF100_H__
-#define __NVKM_LTCG_PRIV_GF100_H__
-
-#include <subdev/ltcg.h>
-
-struct gf100_ltcg_priv {
-	struct nouveau_ltcg base;
-	u32 ltc_nr;
-	u32 lts_nr;
-	u32 num_tags;
-	u32 tag_base;
-	struct nouveau_mm tags;
-	struct nouveau_mm_node *tag_ram;
-};
-
-void gf100_ltcg_dtor(struct nouveau_object *);
-int  gf100_ltcg_init_tag_ram(struct nouveau_fb *, struct gf100_ltcg_priv *);
-int  gf100_ltcg_tags_alloc(struct nouveau_ltcg *, u32, struct nouveau_mm_node **);
-void gf100_ltcg_tags_free(struct nouveau_ltcg *, struct nouveau_mm_node **);
-
-#endif
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
index 2b4af9610ee9..15d41dc176ff 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
@@ -41,7 +41,7 @@ nvc0_mc_intr[] = {
 	{ 0x00200000, NVDEV_SUBDEV_GPIO },	/* PMGR->GPIO */
 	{ 0x00200000, NVDEV_SUBDEV_I2C },	/* PMGR->I2C/AUX */
 	{ 0x01000000, NVDEV_SUBDEV_PWR },
-	{ 0x02000000, NVDEV_SUBDEV_LTCG },
+	{ 0x02000000, NVDEV_SUBDEV_LTC },
 	{ 0x08000000, NVDEV_SUBDEV_FB },
 	{ 0x10000000, NVDEV_SUBDEV_BUS },
 	{ 0x40000000, NVDEV_SUBDEV_IBUS },
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c
index 668cf964e4a9..2d0988755530 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c
@@ -28,7 +28,7 @@
 #include <subdev/timer.h>
 #include <subdev/fb.h>
 #include <subdev/vm.h>
-#include <subdev/ltcg.h>
+#include <subdev/ltc.h>
 #include <subdev/bar.h>
 
 struct nvc0_vmmgr_priv {
@@ -116,12 +116,12 @@ nvc0_vm_map(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
 	pte <<= 3;
 
 	if (mem->tag) {
-		struct nouveau_ltcg *ltcg =
-			nouveau_ltcg(vma->vm->vmm->base.base.parent);
+		struct nouveau_ltc *ltc =
+			nouveau_ltc(vma->vm->vmm->base.base.parent);
 		u32 tag = mem->tag->offset + (delta >> 17);
 		phys |= (u64)tag << (32 + 12);
 		next |= (u64)1   << (32 + 12);
-		ltcg->tags_clear(ltcg, tag, cnt);
+		ltc->tags_clear(ltc, tag, cnt);
 	}
 
 	while (cnt--) {