drm/nouveau/ltc/gf100-: allocate tagram with nvkm_ram_get()

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

drivers/gpu/drm/nouveau/include/nvkm/subdev/ltc.h

@@ -14,7 +14,7 @@ struct nvkm_ltc {
 
 	u32 num_tags;
 	u32 tag_base;
-	struct nvkm_mm_node *tag_ram;
+	struct nvkm_memory *tag_ram;
 
 	int zbc_min;
 	int zbc_max;

drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c

@@ -23,6 +23,7 @@
  */
 #include "priv.h"
 
+#include <core/memory.h>
 #include <subdev/fb.h>
 
 int
@@ -119,9 +120,7 @@ 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;
-	if (ram)
-		nvkm_mm_free(&ram->vram, &ltc->tag_ram);
+	nvkm_memory_unref(&ltc->tag_ram);
 	return ltc;
 }
 

drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gf100.c

@@ -23,6 +23,7 @@
  */
 #include "priv.h"
 
+#include <core/memory.h>
 #include <subdev/fb.h>
 #include <subdev/timer.h>
 
@@ -152,7 +153,8 @@ gf100_ltc_flush(struct nvkm_ltc *ltc)
 int
 gf100_ltc_oneinit_tag_ram(struct nvkm_ltc *ltc)
 {
-	struct nvkm_fb *fb = ltc->subdev.device->fb;
+	struct nvkm_device *device = ltc->subdev.device;
+	struct nvkm_fb *fb = device->fb;
 	struct nvkm_ram *ram = fb->ram;
 	u32 tag_size, tag_margin, tag_align;
 	int ret;
@@ -182,14 +184,13 @@ gf100_ltc_oneinit_tag_ram(struct nvkm_ltc *ltc)
 	 */
 	tag_size  = (ltc->num_tags / 64) * 0x6000 + tag_margin;
 	tag_size += tag_align;
-	tag_size  = (tag_size + 0xfff) >> 12; /* round up */
 
-	ret = nvkm_mm_tail(&ram->vram, NVKM_RAM_MM_NORMAL, 1, tag_size,
-			   tag_size, 1, &ltc->tag_ram);
+	ret = nvkm_ram_get(device, NVKM_RAM_MM_NORMAL, 0x01, 12, tag_size,
+			   true, true, &ltc->tag_ram);
 	if (ret) {
 		ltc->num_tags = 0;
 	} else {
-		u64 tag_base = ((u64)ltc->tag_ram->offset << 12) + tag_margin;
+		u64 tag_base = nvkm_memory_addr(ltc->tag_ram) + tag_margin;
 
 		tag_base += tag_align - 1;
 		do_div(tag_base, tag_align);