5 files changed, 185 insertions, 276 deletions

diff --git a/drm/nouveau/nvkm/subdev/ltc/base.c b/drm/nouveau/nvkm/subdev/ltc/base.c
index d0af1aec0..930d25b6e 100644
--- a/drm/nouveau/nvkm/subdev/ltc/base.c
+++ b/drm/nouveau/nvkm/subdev/ltc/base.c
@@ -23,102 +23,110 @@
  */
 #include "priv.h"
 
-static int
-nvkm_ltc_tags_alloc(struct nvkm_ltc *obj, u32 n, struct nvkm_mm_node **pnode)
-{
-	struct nvkm_ltc_priv *ltc = container_of(obj, typeof(*ltc), base);
-	int ret;
+#include <subdev/fb.h>
 
-	ret = nvkm_mm_head(&ltc->tags, 0, 1, n, n, 1, pnode);
+int
+nvkm_ltc_tags_alloc(struct nvkm_ltc *ltc, u32 n, struct nvkm_mm_node **pnode)
+{
+	int ret = nvkm_mm_head(&ltc->tags, 0, 1, n, n, 1, pnode);
 	if (ret)
 		*pnode = NULL;
-
 	return ret;
 }
 
-static void
-nvkm_ltc_tags_free(struct nvkm_ltc *obj, struct nvkm_mm_node **pnode)
+void
+nvkm_ltc_tags_free(struct nvkm_ltc *ltc, struct nvkm_mm_node **pnode)
 {
-	struct nvkm_ltc_priv *ltc = container_of(obj, typeof(*ltc), base);
 	nvkm_mm_free(&ltc->tags, pnode);
 }
 
-static void
-nvkm_ltc_tags_clear(struct nvkm_ltc *obj, u32 first, u32 count)
+void
+nvkm_ltc_tags_clear(struct nvkm_ltc *ltc, u32 first, u32 count)
 {
-	struct nvkm_ltc_priv *ltc = container_of(obj, typeof(*ltc), base);
-	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc);
 	const u32 limit = first + count - 1;
 
 	BUG_ON((first > limit) || (limit >= ltc->num_tags));
 
-	impl->cbc_clear(ltc, first, limit);
-	impl->cbc_wait(ltc);
+	ltc->func->cbc_clear(ltc, first, limit);
+	ltc->func->cbc_wait(ltc);
 }
 
-static int
-nvkm_ltc_zbc_color_get(struct nvkm_ltc *obj, int index, const u32 color[4])
+int
+nvkm_ltc_zbc_color_get(struct nvkm_ltc *ltc, int index, const u32 color[4])
 {
-	struct nvkm_ltc_priv *ltc = container_of(obj, typeof(*ltc), base);
-	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc);
 	memcpy(ltc->zbc_color[index], color, sizeof(ltc->zbc_color[index]));
-	impl->zbc_clear_color(ltc, index, color);
+	ltc->func->zbc_clear_color(ltc, index, color);
 	return index;
 }
 
-static int
-nvkm_ltc_zbc_depth_get(struct nvkm_ltc *obj, int index, const u32 depth)
+int
+nvkm_ltc_zbc_depth_get(struct nvkm_ltc *ltc, int index, const u32 depth)
 {
-	struct nvkm_ltc_priv *ltc = container_of(obj, typeof(*ltc), base);
-	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc);
 	ltc->zbc_depth[index] = depth;
-	impl->zbc_clear_depth(ltc, index, depth);
+	ltc->func->zbc_clear_depth(ltc, index, depth);
 	return index;
 }
 
-int
-_nvkm_ltc_init(struct nvkm_object *object)
+static void
+nvkm_ltc_intr(struct nvkm_subdev *subdev)
 {
-	struct nvkm_ltc_priv *ltc = (void *)object;
-	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(object);
-	int ret, i;
+	struct nvkm_ltc *ltc = nvkm_ltc(subdev);
+	ltc->func->intr(ltc);
+}
 
-	ret = nvkm_subdev_init_old(&ltc->base.subdev);
-	if (ret)
-		return ret;
+static int
+nvkm_ltc_oneinit(struct nvkm_subdev *subdev)
+{
+	struct nvkm_ltc *ltc = nvkm_ltc(subdev);
+	return ltc->func->oneinit(ltc);
+}
+
+static int
+nvkm_ltc_init(struct nvkm_subdev *subdev)
+{
+	struct nvkm_ltc *ltc = nvkm_ltc(subdev);
+	int i;
 
-	for (i = ltc->base.zbc_min; i <= ltc->base.zbc_max; i++) {
-		impl->zbc_clear_color(ltc, i, ltc->zbc_color[i]);
-		impl->zbc_clear_depth(ltc, i, ltc->zbc_depth[i]);
+	for (i = ltc->zbc_min; i <= ltc->zbc_max; i++) {
+		ltc->func->zbc_clear_color(ltc, i, ltc->zbc_color[i]);
+		ltc->func->zbc_clear_depth(ltc, i, ltc->zbc_depth[i]);
 	}
 
+	ltc->func->init(ltc);
 	return 0;
 }
 
+static void *
+nvkm_ltc_dtor(struct nvkm_subdev *subdev)
+{
+	struct nvkm_ltc *ltc = nvkm_ltc(subdev);
+	struct nvkm_ram *ram = ltc->subdev.device->fb->ram;
+	nvkm_mm_fini(&ltc->tags);
+	if (ram)
+		nvkm_mm_free(&ram->vram, &ltc->tag_ram);
+	return ltc;
+}
+
+static const struct nvkm_subdev_func
+nvkm_ltc = {
+	.dtor = nvkm_ltc_dtor,
+	.oneinit = nvkm_ltc_oneinit,
+	.init = nvkm_ltc_init,
+	.intr = nvkm_ltc_intr,
+};
+
 int
-nvkm_ltc_create_(struct nvkm_object *parent, struct nvkm_object *engine,
-		 struct nvkm_oclass *oclass, int length, void **pobject)
+nvkm_ltc_new_(const struct nvkm_ltc_func *func, struct nvkm_device *device,
+	      int index, struct nvkm_ltc **pltc)
 {
-	const struct nvkm_ltc_impl *impl = (void *)oclass;
-	struct nvkm_ltc_priv *ltc;
-	int ret;
+	struct nvkm_ltc *ltc;
 
-	ret = nvkm_subdev_create_(parent, engine, oclass, 0, "PLTCG",
-				  "l2c", length, pobject);
-	ltc = *pobject;
-	if (ret)
-		return ret;
-
-	memset(ltc->zbc_color, 0x00, sizeof(ltc->zbc_color));
-	memset(ltc->zbc_depth, 0x00, sizeof(ltc->zbc_depth));
-
-	ltc->base.subdev.intr = impl->intr;
-	ltc->base.tags_alloc = nvkm_ltc_tags_alloc;
-	ltc->base.tags_free = nvkm_ltc_tags_free;
-	ltc->base.tags_clear = nvkm_ltc_tags_clear;
-	ltc->base.zbc_min = 1; /* reserve 0 for disabled */
-	ltc->base.zbc_max = min(impl->zbc, NVKM_LTC_MAX_ZBC_CNT) - 1;
-	ltc->base.zbc_color_get = nvkm_ltc_zbc_color_get;
-	ltc->base.zbc_depth_get = nvkm_ltc_zbc_depth_get;
+	if (!(ltc = *pltc = kzalloc(sizeof(*ltc), GFP_KERNEL)))
+		return -ENOMEM;
+
+	nvkm_subdev_ctor(&nvkm_ltc, device, index, 0, &ltc->subdev);
+	ltc->func = func;
+	ltc->zbc_min = 1; /* reserve 0 for disabled */
+	ltc->zbc_max = min(func->zbc, NVKM_LTC_MAX_ZBC_CNT) - 1;
 	return 0;
 }
diff --git a/drm/nouveau/nvkm/subdev/ltc/gf100.c b/drm/nouveau/nvkm/subdev/ltc/gf100.c
index 5cb7604be..45ac765b7 100644
--- a/drm/nouveau/nvkm/subdev/ltc/gf100.c
+++ b/drm/nouveau/nvkm/subdev/ltc/gf100.c
@@ -28,18 +28,18 @@
 #include <subdev/timer.h>
 
 void
-gf100_ltc_cbc_clear(struct nvkm_ltc_priv *ltc, u32 start, u32 limit)
+gf100_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit)
 {
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	nvkm_wr32(device, 0x17e8cc, start);
 	nvkm_wr32(device, 0x17e8d0, limit);
 	nvkm_wr32(device, 0x17e8c8, 0x00000004);
 }
 
 void
-gf100_ltc_cbc_wait(struct nvkm_ltc_priv *ltc)
+gf100_ltc_cbc_wait(struct nvkm_ltc *ltc)
 {
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	int c, s;
 	for (c = 0; c < ltc->ltc_nr; c++) {
 		for (s = 0; s < ltc->lts_nr; s++) {
@@ -53,9 +53,9 @@ gf100_ltc_cbc_wait(struct nvkm_ltc_priv *ltc)
 }
 
 void
-gf100_ltc_zbc_clear_color(struct nvkm_ltc_priv *ltc, int i, const u32 color[4])
+gf100_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])
 {
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	nvkm_mask(device, 0x17ea44, 0x0000000f, i);
 	nvkm_wr32(device, 0x17ea48, color[0]);
 	nvkm_wr32(device, 0x17ea4c, color[1]);
@@ -64,9 +64,9 @@ gf100_ltc_zbc_clear_color(struct nvkm_ltc_priv *ltc, int i, const u32 color[4])
 }
 
 void
-gf100_ltc_zbc_clear_depth(struct nvkm_ltc_priv *ltc, int i, const u32 depth)
+gf100_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth)
 {
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	nvkm_mask(device, 0x17ea44, 0x0000000f, i);
 	nvkm_wr32(device, 0x17ea58, depth);
 }
@@ -90,9 +90,9 @@ gf100_ltc_lts_intr_name[] = {
 };
 
 static void
-gf100_ltc_lts_intr(struct nvkm_ltc_priv *ltc, int c, int s)
+gf100_ltc_lts_intr(struct nvkm_ltc *ltc, int c, int s)
 {
-	struct nvkm_subdev *subdev = &ltc->base.subdev;
+	struct nvkm_subdev *subdev = &ltc->subdev;
 	struct nvkm_device *device = subdev->device;
 	u32 base = 0x141000 + (c * 0x2000) + (s * 0x400);
 	u32 intr = nvkm_rd32(device, base + 0x020);
@@ -108,10 +108,9 @@ gf100_ltc_lts_intr(struct nvkm_ltc_priv *ltc, int c, int s)
 }
 
 void
-gf100_ltc_intr(struct nvkm_subdev *subdev)
+gf100_ltc_intr(struct nvkm_ltc *ltc)
 {
-	struct nvkm_ltc_priv *ltc = (void *)subdev;
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	u32 mask;
 
 	mask = nvkm_rd32(device, 0x00017c);
@@ -123,44 +122,12 @@ gf100_ltc_intr(struct nvkm_subdev *subdev)
 	}
 }
 
-static int
-gf100_ltc_init(struct nvkm_object *object)
-{
-	struct nvkm_ltc_priv *ltc = (void *)object;
-	struct nvkm_device *device = ltc->base.subdev.device;
-	u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
-	int ret;
-
-	ret = nvkm_ltc_init(ltc);
-	if (ret)
-		return ret;
-
-	nvkm_mask(device, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
-	nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
-	nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
-	nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
-	return 0;
-}
-
-void
-gf100_ltc_dtor(struct nvkm_object *object)
-{
-	struct nvkm_ltc_priv *ltc = (void *)object;
-	struct nvkm_ram *ram = ltc->base.subdev.device->fb->ram;
-
-	nvkm_mm_fini(&ltc->tags);
-	if (ram)
-		nvkm_mm_free(&ram->vram, &ltc->tag_ram);
-
-	nvkm_ltc_destroy(ltc);
-}
-
 /* TODO: Figure out tag memory details and drop the over-cautious allocation.
  */
 int
-gf100_ltc_init_tag_ram(struct nvkm_ltc_priv *ltc)
+gf100_ltc_oneinit_tag_ram(struct nvkm_ltc *ltc)
 {
-	struct nvkm_ram *ram = ltc->base.subdev.device->fb->ram;
+	struct nvkm_ram *ram = ltc->subdev.device->fb->ram;
 	u32 tag_size, tag_margin, tag_align;
 	int ret;
 
@@ -205,54 +172,53 @@ gf100_ltc_init_tag_ram(struct nvkm_ltc_priv *ltc)
 	}
 
 mm_init:
-	ret = nvkm_mm_init(&ltc->tags, 0, ltc->num_tags, 1);
-	return ret;
+	return nvkm_mm_init(&ltc->tags, 0, ltc->num_tags, 1);
 }
 
 int
-gf100_ltc_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
-	       struct nvkm_oclass *oclass, void *data, u32 size,
-	       struct nvkm_object **pobject)
+gf100_ltc_oneinit(struct nvkm_ltc *ltc)
 {
-	struct nvkm_device *device = (void *)parent;
-	struct nvkm_ltc_priv *ltc;
-	u32 parts, mask;
-	int ret, i;
-
-	ret = nvkm_ltc_create(parent, engine, oclass, &ltc);
-	*pobject = nv_object(ltc);
-	if (ret)
-		return ret;
+	struct nvkm_device *device = ltc->subdev.device;
+	const u32 parts = nvkm_rd32(device, 0x022438);
+	const u32  mask = nvkm_rd32(device, 0x022554);
+	const u32 slice = nvkm_rd32(device, 0x17e8dc) >> 28;
+	int i;
 
-	parts = nvkm_rd32(device, 0x022438);
-	mask = nvkm_rd32(device, 0x022554);
 	for (i = 0; i < parts; i++) {
 		if (!(mask & (1 << i)))
 			ltc->ltc_nr++;
 	}
-	ltc->lts_nr = nvkm_rd32(device, 0x17e8dc) >> 28;
+	ltc->lts_nr = slice;
+
+	return gf100_ltc_oneinit_tag_ram(ltc);
+}
 
-	ret = gf100_ltc_init_tag_ram(ltc);
-	if (ret)
-		return ret;
+static void
+gf100_ltc_init(struct nvkm_ltc *ltc)
+{
+	struct nvkm_device *device = ltc->subdev.device;
+	u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
 
-	nv_subdev(ltc)->intr = gf100_ltc_intr;
-	return 0;
+	nvkm_mask(device, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
+	nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
+	nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
+	nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
 }
 
-struct nvkm_oclass *
-gf100_ltc_oclass = &(struct nvkm_ltc_impl) {
-	.base.handle = NV_SUBDEV(LTC, 0xc0),
-	.base.ofuncs = &(struct nvkm_ofuncs) {
-		.ctor = gf100_ltc_ctor,
-		.dtor = gf100_ltc_dtor,
-		.init = gf100_ltc_init,
-		.fini = _nvkm_ltc_fini,
-	},
+static const struct nvkm_ltc_func
+gf100_ltc = {
+	.oneinit = gf100_ltc_oneinit,
+	.init = gf100_ltc_init,
 	.intr = gf100_ltc_intr,
 	.cbc_clear = gf100_ltc_cbc_clear,
 	.cbc_wait = gf100_ltc_cbc_wait,
 	.zbc = 16,
 	.zbc_clear_color = gf100_ltc_zbc_clear_color,
 	.zbc_clear_depth = gf100_ltc_zbc_clear_depth,
-}.base;
+};
+
+int
+gf100_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
+{
+	return nvkm_ltc_new_(&gf100_ltc, device, index, pltc);
+}
diff --git a/drm/nouveau/nvkm/subdev/ltc/gk104.c b/drm/nouveau/nvkm/subdev/ltc/gk104.c
index a1f97d2ec..839e6b4c5 100644
--- a/drm/nouveau/nvkm/subdev/ltc/gk104.c
+++ b/drm/nouveau/nvkm/subdev/ltc/gk104.c
@@ -23,38 +23,32 @@
  */
 #include "priv.h"
 
-static int
-gk104_ltc_init(struct nvkm_object *object)
+static void
+gk104_ltc_init(struct nvkm_ltc *ltc)
 {
-	struct nvkm_ltc_priv *ltc = (void *)object;
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
-	int ret;
-
-	ret = nvkm_ltc_init(ltc);
-	if (ret)
-		return ret;
 
 	nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
 	nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
 	nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
 	nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
-	return 0;
 }
 
-struct nvkm_oclass *
-gk104_ltc_oclass = &(struct nvkm_ltc_impl) {
-	.base.handle = NV_SUBDEV(LTC, 0xe4),
-	.base.ofuncs = &(struct nvkm_ofuncs) {
-		.ctor = gf100_ltc_ctor,
-		.dtor = gf100_ltc_dtor,
-		.init = gk104_ltc_init,
-		.fini = _nvkm_ltc_fini,
-	},
+static const struct nvkm_ltc_func
+gk104_ltc = {
+	.oneinit = gf100_ltc_oneinit,
+	.init = gk104_ltc_init,
 	.intr = gf100_ltc_intr,
 	.cbc_clear = gf100_ltc_cbc_clear,
 	.cbc_wait = gf100_ltc_cbc_wait,
 	.zbc = 16,
 	.zbc_clear_color = gf100_ltc_zbc_clear_color,
 	.zbc_clear_depth = gf100_ltc_zbc_clear_depth,
-}.base;
+};
+
+int
+gk104_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
+{
+	return nvkm_ltc_new_(&gk104_ltc, device, index, pltc);
+}
diff --git a/drm/nouveau/nvkm/subdev/ltc/gm107.c b/drm/nouveau/nvkm/subdev/ltc/gm107.c
index 431acbef6..389331bb6 100644
--- a/drm/nouveau/nvkm/subdev/ltc/gm107.c
+++ b/drm/nouveau/nvkm/subdev/ltc/gm107.c
@@ -27,18 +27,18 @@
 #include <subdev/timer.h>
 
 static void
-gm107_ltc_cbc_clear(struct nvkm_ltc_priv *ltc, u32 start, u32 limit)
+gm107_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit)
 {
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	nvkm_wr32(device, 0x17e270, start);
 	nvkm_wr32(device, 0x17e274, limit);
 	nvkm_wr32(device, 0x17e26c, 0x00000004);
 }
 
 static void
-gm107_ltc_cbc_wait(struct nvkm_ltc_priv *ltc)
+gm107_ltc_cbc_wait(struct nvkm_ltc *ltc)
 {
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	int c, s;
 	for (c = 0; c < ltc->ltc_nr; c++) {
 		for (s = 0; s < ltc->lts_nr; s++) {
@@ -52,9 +52,9 @@ gm107_ltc_cbc_wait(struct nvkm_ltc_priv *ltc)
 }
 
 static void
-gm107_ltc_zbc_clear_color(struct nvkm_ltc_priv *ltc, int i, const u32 color[4])
+gm107_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])
 {
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	nvkm_mask(device, 0x17e338, 0x0000000f, i);
 	nvkm_wr32(device, 0x17e33c, color[0]);
 	nvkm_wr32(device, 0x17e340, color[1]);
@@ -63,17 +63,17 @@ gm107_ltc_zbc_clear_color(struct nvkm_ltc_priv *ltc, int i, const u32 color[4])
 }
 
 static void
-gm107_ltc_zbc_clear_depth(struct nvkm_ltc_priv *ltc, int i, const u32 depth)
+gm107_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth)
 {
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	nvkm_mask(device, 0x17e338, 0x0000000f, i);
 	nvkm_wr32(device, 0x17e34c, depth);
 }
 
 static void
-gm107_ltc_lts_isr(struct nvkm_ltc_priv *ltc, int c, int s)
+gm107_ltc_lts_isr(struct nvkm_ltc *ltc, int c, int s)
 {
-	struct nvkm_subdev *subdev = &ltc->base.subdev;
+	struct nvkm_subdev *subdev = &ltc->subdev;
 	struct nvkm_device *device = subdev->device;
 	u32 base = 0x140000 + (c * 0x2000) + (s * 0x400);
 	u32 stat = nvkm_rd32(device, base + 0x00c);
@@ -85,10 +85,9 @@ gm107_ltc_lts_isr(struct nvkm_ltc_priv *ltc, int c, int s)
 }
 
 static void
-gm107_ltc_intr(struct nvkm_subdev *subdev)
+gm107_ltc_intr(struct nvkm_ltc *ltc)
 {
-	struct nvkm_ltc_priv *ltc = (void *)subdev;
-	struct nvkm_device *device = ltc->base.subdev.device;
+	struct nvkm_device *device = ltc->subdev.device;
 	u32 mask;
 
 	mask = nvkm_rd32(device, 0x00017c);
@@ -101,66 +100,48 @@ gm107_ltc_intr(struct nvkm_subdev *subdev)
 }
 
 static int
-gm107_ltc_init(struct nvkm_object *object)
+gm107_ltc_oneinit(struct nvkm_ltc *ltc)
 {
-	struct nvkm_ltc_priv *ltc = (void *)object;
-	struct nvkm_device *device = ltc->base.subdev.device;
-	u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
-	int ret;
-
-	ret = nvkm_ltc_init(ltc);
-	if (ret)
-		return ret;
-
-	nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);
-	nvkm_wr32(device, 0x17e278, ltc->tag_base);
-	nvkm_mask(device, 0x17e264, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
-	return 0;
-}
+	struct nvkm_device *device = ltc->subdev.device;
+	const u32 parts = nvkm_rd32(device, 0x022438);
+	const u32  mask = nvkm_rd32(device, 0x021c14);
+	const u32 slice = nvkm_rd32(device, 0x17e280) >> 28;
+	int i;
 
-static int
-gm107_ltc_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
-	       struct nvkm_oclass *oclass, void *data, u32 size,
-	       struct nvkm_object **pobject)
-{
-	struct nvkm_device *device = (void *)parent;
-	struct nvkm_ltc_priv *ltc;
-	u32 parts, mask;
-	int ret, i;
-
-	ret = nvkm_ltc_create(parent, engine, oclass, &ltc);
-	*pobject = nv_object(ltc);
-	if (ret)
-		return ret;
-
-	parts = nvkm_rd32(device, 0x022438);
-	mask = nvkm_rd32(device, 0x021c14);
 	for (i = 0; i < parts; i++) {
 		if (!(mask & (1 << i)))
 			ltc->ltc_nr++;
 	}
-	ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;
+	ltc->lts_nr = slice;
+
+	return gf100_ltc_oneinit_tag_ram(ltc);
+}
 
-	ret = gf100_ltc_init_tag_ram(ltc);
-	if (ret)
-		return ret;
+static void
+gm107_ltc_init(struct nvkm_ltc *ltc)
+{
+	struct nvkm_device *device = ltc->subdev.device;
+	u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
 
-	return 0;
+	nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);
+	nvkm_wr32(device, 0x17e278, ltc->tag_base);
+	nvkm_mask(device, 0x17e264, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
 }
 
-struct nvkm_oclass *
-gm107_ltc_oclass = &(struct nvkm_ltc_impl) {
-	.base.handle = NV_SUBDEV(LTC, 0xff),
-	.base.ofuncs = &(struct nvkm_ofuncs) {
-		.ctor = gm107_ltc_ctor,
-		.dtor = gf100_ltc_dtor,
-		.init = gm107_ltc_init,
-		.fini = _nvkm_ltc_fini,
-	},
+static const struct nvkm_ltc_func
+gm107_ltc = {
+	.oneinit = gm107_ltc_oneinit,
+	.init = gm107_ltc_init,
 	.intr = gm107_ltc_intr,
 	.cbc_clear = gm107_ltc_cbc_clear,
 	.cbc_wait = gm107_ltc_cbc_wait,
 	.zbc = 16,
 	.zbc_clear_color = gm107_ltc_zbc_clear_color,
 	.zbc_clear_depth = gm107_ltc_zbc_clear_depth,
-}.base;
+};
+
+int
+gm107_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
+{
+	return nvkm_ltc_new_(&gm107_ltc, device, index, pltc);
+}
diff --git a/drm/nouveau/nvkm/subdev/ltc/priv.h b/drm/nouveau/nvkm/subdev/ltc/priv.h
index 0544288b0..4e05037cc 100644
--- a/drm/nouveau/nvkm/subdev/ltc/priv.h
+++ b/drm/nouveau/nvkm/subdev/ltc/priv.h
@@ -1,69 +1,29 @@
 #ifndef __NVKM_LTC_PRIV_H__
 #define __NVKM_LTC_PRIV_H__
+#define nvkm_ltc(p) container_of((p), struct nvkm_ltc, subdev)
 #include <subdev/ltc.h>
 
-#include <core/mm.h>
-struct nvkm_fb;
+int nvkm_ltc_new_(const struct nvkm_ltc_func *, struct nvkm_device *,
+		  int index, struct nvkm_ltc **);
 
-struct nvkm_ltc_priv {
-	struct nvkm_ltc base;
-	u32 ltc_nr;
-	u32 lts_nr;
+struct nvkm_ltc_func {
+	int  (*oneinit)(struct nvkm_ltc *);
+	void (*init)(struct nvkm_ltc *);
+	void (*intr)(struct nvkm_ltc *);
 
-	u32 num_tags;
-	u32 tag_base;
-	struct nvkm_mm tags;
-	struct nvkm_mm_node *tag_ram;
-
-	u32 zbc_color[NVKM_LTC_MAX_ZBC_CNT][4];
-	u32 zbc_depth[NVKM_LTC_MAX_ZBC_CNT];
-};
-
-#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 nvkm_object *, struct nvkm_object *,
-		      struct nvkm_oclass *, int, void **);
-
-#define _nvkm_ltc_dtor _nvkm_subdev_dtor
-int _nvkm_ltc_init(struct nvkm_object *);
-#define _nvkm_ltc_fini _nvkm_subdev_fini
-
-int  gf100_ltc_ctor(struct nvkm_object *, struct nvkm_object *,
-		    struct nvkm_oclass *, void *, u32,
-		    struct nvkm_object **);
-void gf100_ltc_dtor(struct nvkm_object *);
-int  gf100_ltc_init_tag_ram(struct nvkm_ltc_priv *);
-int  gf100_ltc_tags_alloc(struct nvkm_ltc *, u32, struct nvkm_mm_node **);
-void gf100_ltc_tags_free(struct nvkm_ltc *, struct nvkm_mm_node **);
-
-struct nvkm_ltc_impl {
-	struct nvkm_oclass base;
-	void (*intr)(struct nvkm_subdev *);
-
-	void (*cbc_clear)(struct nvkm_ltc_priv *, u32 start, u32 limit);
-	void (*cbc_wait)(struct nvkm_ltc_priv *);
+	void (*cbc_clear)(struct nvkm_ltc *, u32 start, u32 limit);
+	void (*cbc_wait)(struct nvkm_ltc *);
 
 	int zbc;
-	void (*zbc_clear_color)(struct nvkm_ltc_priv *, int, const u32[4]);
-	void (*zbc_clear_depth)(struct nvkm_ltc_priv *, int, const u32);
+	void (*zbc_clear_color)(struct nvkm_ltc *, int, const u32[4]);
+	void (*zbc_clear_depth)(struct nvkm_ltc *, int, const u32);
 };
 
-void gf100_ltc_intr(struct nvkm_subdev *);
-void gf100_ltc_cbc_clear(struct nvkm_ltc_priv *, u32, u32);
-void gf100_ltc_cbc_wait(struct nvkm_ltc_priv *);
-void gf100_ltc_zbc_clear_color(struct nvkm_ltc_priv *, int, const u32[4]);
-void gf100_ltc_zbc_clear_depth(struct nvkm_ltc_priv *, int, const u32);
+int gf100_ltc_oneinit(struct nvkm_ltc *);
+int gf100_ltc_oneinit_tag_ram(struct nvkm_ltc *);
+void gf100_ltc_intr(struct nvkm_ltc *);
+void gf100_ltc_cbc_clear(struct nvkm_ltc *, u32, u32);
+void gf100_ltc_cbc_wait(struct nvkm_ltc *);
+void gf100_ltc_zbc_clear_color(struct nvkm_ltc *, int, const u32[4]);
+void gf100_ltc_zbc_clear_depth(struct nvkm_ltc *, int, const u32);
 #endif