drm/nvc0: initial vm implementation, use for bar1/bar3 management
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index e89d895..d9d22ff 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -28,7 +28,8 @@
nv10_gpio.o nv50_gpio.o \
nv50_calc.o \
nv04_pm.o nv50_pm.o nva3_pm.o \
- nv50_vram.o nv50_vm.o nvc0_vm.o
+ nv50_vram.o nvc0_vram.o \
+ nv50_vm.o nvc0_vm.o
nouveau-$(CONFIG_DRM_NOUVEAU_DEBUG) += nouveau_debugfs.o
nouveau-$(CONFIG_COMPAT) += nouveau_ioc32.o
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index d17ffea..6f3096a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -120,6 +120,9 @@
align >>= PAGE_SHIFT;
if (!nvbo->no_vm && dev_priv->chan_vm) {
+ if (dev_priv->card_type == NV_C0)
+ page_shift = 12;
+
ret = nouveau_vm_get(dev_priv->chan_vm, size, page_shift,
NV_MEM_ACCESS_RW, &nvbo->vma);
if (ret) {
@@ -413,7 +416,7 @@
man->default_caching = TTM_PL_FLAG_CACHED;
break;
case TTM_PL_VRAM:
- if (dev_priv->card_type == NV_50) {
+ if (dev_priv->card_type >= NV_50) {
man->func = &nouveau_vram_manager;
man->io_reserve_fastpath = false;
man->use_io_reserve_lru = true;
@@ -901,6 +904,7 @@
case TTM_PL_VRAM:
{
struct nouveau_vram *vram = mem->mm_node;
+ u8 page_shift;
if (!dev_priv->bar1_vm) {
mem->bus.offset = mem->start << PAGE_SHIFT;
@@ -909,8 +913,13 @@
break;
}
+ if (dev_priv->card_type == NV_C0)
+ page_shift = vram->page_shift;
+ else
+ page_shift = 12;
+
ret = nouveau_vm_get(dev_priv->bar1_vm, mem->bus.size,
- vram->page_shift, NV_MEM_ACCESS_RW,
+ page_shift, NV_MEM_ACCESS_RW,
&vram->bar_vma);
if (ret)
return ret;
@@ -921,8 +930,9 @@
return ret;
}
- mem->bus.offset = vram->bar_vma.offset;
- mem->bus.offset -= 0x0020000000ULL;
+ mem->bus.offset = vram->bar_vma.offset;
+ if (dev_priv->card_type == NV_50) /*XXX*/
+ mem->bus.offset -= 0x0020000000ULL;
mem->bus.base = pci_resource_start(dev->pdev, 1);
mem->bus.is_iomem = true;
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 57da219..c1e85c4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -842,6 +842,9 @@
struct nouveau_fence *fence);
extern const struct ttm_mem_type_manager_func nouveau_vram_manager;
+/* nvc0_vram.c */
+extern const struct ttm_mem_type_manager_func nvc0_vram_manager;
+
/* nouveau_notifier.c */
extern int nouveau_notifier_init_channel(struct nouveau_channel *);
extern void nouveau_notifier_takedown_channel(struct nouveau_channel *);
@@ -1229,11 +1232,6 @@
extern void nvc0_instmem_takedown(struct drm_device *);
extern int nvc0_instmem_suspend(struct drm_device *);
extern void nvc0_instmem_resume(struct drm_device *);
-extern int nvc0_instmem_get(struct nouveau_gpuobj *, u32 size, u32 align);
-extern void nvc0_instmem_put(struct nouveau_gpuobj *);
-extern int nvc0_instmem_map(struct nouveau_gpuobj *);
-extern void nvc0_instmem_unmap(struct nouveau_gpuobj *);
-extern void nvc0_instmem_flush(struct drm_device *);
/* nv04_mc.c */
extern int nv04_mc_init(struct drm_device *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 07be1dd..69044eb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -255,9 +255,6 @@
if (dev_priv->card_type < NV_50) {
dev_priv->vram_size = nv_rd32(dev, NV04_PFB_FIFO_DATA);
dev_priv->vram_size &= NV10_PFB_FIFO_DATA_RAM_AMOUNT_MB_MASK;
- } else {
- dev_priv->vram_size = nv_rd32(dev, 0x10f20c) << 20;
- dev_priv->vram_size *= nv_rd32(dev, 0x121c74);
}
if (dev_priv->vram_size)
diff --git a/drivers/gpu/drm/nouveau/nouveau_mm.h b/drivers/gpu/drm/nouveau/nouveau_mm.h
index 250e642..af38449 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_mm.h
@@ -59,4 +59,9 @@
void nv50_vram_del(struct drm_device *, struct nouveau_vram **);
bool nv50_vram_flags_valid(struct drm_device *, u32 tile_flags);
+int nvc0_vram_init(struct drm_device *);
+int nvc0_vram_new(struct drm_device *, u64 size, u32 align, u32 ncmin,
+ u32 memtype, struct nouveau_vram **);
+bool nvc0_vram_flags_valid(struct drm_device *, u32 tile_flags);
+
#endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index 8eac943..813790f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -464,11 +464,11 @@
engine->instmem.takedown = nvc0_instmem_takedown;
engine->instmem.suspend = nvc0_instmem_suspend;
engine->instmem.resume = nvc0_instmem_resume;
- engine->instmem.get = nvc0_instmem_get;
- engine->instmem.put = nvc0_instmem_put;
- engine->instmem.map = nvc0_instmem_map;
- engine->instmem.unmap = nvc0_instmem_unmap;
- engine->instmem.flush = nvc0_instmem_flush;
+ engine->instmem.get = nv50_instmem_get;
+ engine->instmem.put = nv50_instmem_put;
+ 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;
@@ -509,8 +509,10 @@
engine->gpio.irq_enable = nv50_gpio_irq_enable;
engine->crypt.init = nouveau_stub_init;
engine->crypt.takedown = nouveau_stub_takedown;
- engine->vram.init = nouveau_mem_detect;
- engine->vram.flags_valid = nouveau_mem_flags_valid;
+ engine->vram.init = nvc0_vram_init;
+ engine->vram.get = nvc0_vram_new;
+ engine->vram.put = nv50_vram_del;
+ engine->vram.flags_valid = nvc0_vram_flags_valid;
break;
default:
NV_ERROR(dev, "NV%02x unsupported\n", dev_priv->chipset);
diff --git a/drivers/gpu/drm/nouveau/nvc0_instmem.c b/drivers/gpu/drm/nouveau/nvc0_instmem.c
index 3923208..2110997 100644
--- a/drivers/gpu/drm/nouveau/nvc0_instmem.c
+++ b/drivers/gpu/drm/nouveau/nvc0_instmem.c
@@ -25,159 +25,21 @@
#include "drmP.h"
#include "nouveau_drv.h"
+#include "nouveau_vm.h"
-struct nvc0_gpuobj_node {
- struct nouveau_bo *vram;
- struct drm_mm_node *ramin;
- u32 align;
+struct nvc0_instmem_priv {
+ struct nouveau_gpuobj *bar1_pgd;
+ struct nouveau_channel *bar1;
+ struct nouveau_gpuobj *bar3_pgd;
+ struct nouveau_channel *bar3;
};
int
-nvc0_instmem_get(struct nouveau_gpuobj *gpuobj, u32 size, u32 align)
-{
- struct drm_device *dev = gpuobj->dev;
- struct nvc0_gpuobj_node *node = NULL;
- int ret;
-
- node = kzalloc(sizeof(*node), GFP_KERNEL);
- if (!node)
- return -ENOMEM;
- node->align = align;
-
- ret = nouveau_bo_new(dev, NULL, size, align, TTM_PL_FLAG_VRAM,
- 0, 0x0000, true, false, &node->vram);
- if (ret) {
- NV_ERROR(dev, "error getting PRAMIN backing pages: %d\n", ret);
- return ret;
- }
-
- ret = nouveau_bo_pin(node->vram, TTM_PL_FLAG_VRAM);
- if (ret) {
- NV_ERROR(dev, "error pinning PRAMIN backing VRAM: %d\n", ret);
- nouveau_bo_ref(NULL, &node->vram);
- return ret;
- }
-
- gpuobj->vinst = node->vram->bo.mem.start << PAGE_SHIFT;
- gpuobj->size = node->vram->bo.mem.num_pages << PAGE_SHIFT;
- gpuobj->node = node;
- return 0;
-}
-
-void
-nvc0_instmem_put(struct nouveau_gpuobj *gpuobj)
-{
- struct nvc0_gpuobj_node *node;
-
- node = gpuobj->node;
- gpuobj->node = NULL;
-
- nouveau_bo_unpin(node->vram);
- nouveau_bo_ref(NULL, &node->vram);
- kfree(node);
-}
-
-int
-nvc0_instmem_map(struct nouveau_gpuobj *gpuobj)
-{
- struct drm_nouveau_private *dev_priv = gpuobj->dev->dev_private;
- struct nvc0_gpuobj_node *node = gpuobj->node;
- struct drm_device *dev = gpuobj->dev;
- struct drm_mm_node *ramin = NULL;
- u32 pte, pte_end;
- u64 vram;
-
- do {
- if (drm_mm_pre_get(&dev_priv->ramin_heap))
- return -ENOMEM;
-
- spin_lock(&dev_priv->ramin_lock);
- ramin = drm_mm_search_free(&dev_priv->ramin_heap, gpuobj->size,
- node->align, 0);
- if (ramin == NULL) {
- spin_unlock(&dev_priv->ramin_lock);
- return -ENOMEM;
- }
-
- ramin = drm_mm_get_block_atomic(ramin, gpuobj->size, node->align);
- spin_unlock(&dev_priv->ramin_lock);
- } while (ramin == NULL);
-
- pte = (ramin->start >> 12) << 1;
- pte_end = ((ramin->size >> 12) << 1) + pte;
- vram = gpuobj->vinst;
-
- NV_DEBUG(dev, "pramin=0x%lx, pte=%d, pte_end=%d\n",
- ramin->start, pte, pte_end);
- NV_DEBUG(dev, "first vram page: 0x%010llx\n", gpuobj->vinst);
-
- while (pte < pte_end) {
- nv_wr32(dev, 0x702000 + (pte * 8), (vram >> 8) | 1);
- nv_wr32(dev, 0x702004 + (pte * 8), 0);
- vram += 4096;
- pte++;
- }
- dev_priv->engine.instmem.flush(dev);
-
- if (1) {
- u32 chan = nv_rd32(dev, 0x1700) << 16;
- nv_wr32(dev, 0x100cb8, (chan + 0x1000) >> 8);
- nv_wr32(dev, 0x100cbc, 0x80000005);
- }
-
- node->ramin = ramin;
- gpuobj->pinst = ramin->start;
- return 0;
-}
-
-void
-nvc0_instmem_unmap(struct nouveau_gpuobj *gpuobj)
-{
- struct drm_nouveau_private *dev_priv = gpuobj->dev->dev_private;
- struct nvc0_gpuobj_node *node = gpuobj->node;
- u32 pte, pte_end;
-
- if (!node->ramin || !dev_priv->ramin_available)
- return;
-
- pte = (node->ramin->start >> 12) << 1;
- pte_end = ((node->ramin->size >> 12) << 1) + pte;
-
- while (pte < pte_end) {
- nv_wr32(gpuobj->dev, 0x702000 + (pte * 8), 0);
- nv_wr32(gpuobj->dev, 0x702004 + (pte * 8), 0);
- pte++;
- }
- dev_priv->engine.instmem.flush(gpuobj->dev);
-
- spin_lock(&dev_priv->ramin_lock);
- drm_mm_put_block(node->ramin);
- node->ramin = NULL;
- spin_unlock(&dev_priv->ramin_lock);
-}
-
-void
-nvc0_instmem_flush(struct drm_device *dev)
-{
- nv_wr32(dev, 0x070000, 1);
- if (!nv_wait(dev, 0x070000, 0x00000002, 0x00000000))
- NV_ERROR(dev, "PRAMIN flush timeout\n");
-}
-
-int
nvc0_instmem_suspend(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
- u32 *buf;
- int i;
- dev_priv->susres.ramin_copy = vmalloc(65536);
- if (!dev_priv->susres.ramin_copy)
- return -ENOMEM;
- buf = dev_priv->susres.ramin_copy;
-
- for (i = 0; i < 65536; i += 4)
- buf[i/4] = nv_rd32(dev, NV04_PRAMIN + i);
+ dev_priv->ramin_available = false;
return 0;
}
@@ -185,73 +47,169 @@
nvc0_instmem_resume(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
- u32 *buf = dev_priv->susres.ramin_copy;
- u64 chan;
- int i;
+ struct nvc0_instmem_priv *priv = dev_priv->engine.instmem.priv;
- chan = dev_priv->vram_size - dev_priv->ramin_rsvd_vram;
- nv_wr32(dev, 0x001700, chan >> 16);
+ nv_mask(dev, 0x100c80, 0x00000001, 0x00000000);
+ nv_wr32(dev, 0x001704, 0x80000000 | priv->bar1->ramin->vinst >> 12);
+ nv_wr32(dev, 0x001714, 0xc0000000 | priv->bar3->ramin->vinst >> 12);
+ dev_priv->ramin_available = true;
+}
- for (i = 0; i < 65536; i += 4)
- nv_wr32(dev, NV04_PRAMIN + i, buf[i/4]);
- vfree(dev_priv->susres.ramin_copy);
- dev_priv->susres.ramin_copy = NULL;
+static void
+nvc0_channel_del(struct nouveau_channel **pchan)
+{
+ struct nouveau_channel *chan;
- nv_wr32(dev, 0x001714, 0xc0000000 | (chan >> 12));
+ chan = *pchan;
+ *pchan = NULL;
+ if (!chan)
+ return;
+
+ nouveau_vm_ref(NULL, &chan->vm, NULL);
+ if (chan->ramin_heap.free_stack.next)
+ drm_mm_takedown(&chan->ramin_heap);
+ nouveau_gpuobj_ref(NULL, &chan->ramin);
+ kfree(chan);
+}
+
+static int
+nvc0_channel_new(struct drm_device *dev, u32 size, struct nouveau_vm *vm,
+ struct nouveau_channel **pchan,
+ struct nouveau_gpuobj *pgd, u64 vm_size)
+{
+ struct nouveau_channel *chan;
+ int ret;
+
+ chan = kzalloc(sizeof(*chan), GFP_KERNEL);
+ if (!chan)
+ return -ENOMEM;
+ chan->dev = dev;
+
+ ret = nouveau_gpuobj_new(dev, NULL, size, 0x1000, 0, &chan->ramin);
+ if (ret) {
+ nvc0_channel_del(&chan);
+ return ret;
+ }
+
+ ret = drm_mm_init(&chan->ramin_heap, 0x1000, size - 0x1000);
+ if (ret) {
+ nvc0_channel_del(&chan);
+ return ret;
+ }
+
+ ret = nouveau_vm_ref(vm, &chan->vm, NULL);
+ if (ret) {
+ nvc0_channel_del(&chan);
+ return ret;
+ }
+
+ nv_wo32(chan->ramin, 0x0200, lower_32_bits(pgd->vinst));
+ nv_wo32(chan->ramin, 0x0204, upper_32_bits(pgd->vinst));
+ nv_wo32(chan->ramin, 0x0208, lower_32_bits(vm_size - 1));
+ nv_wo32(chan->ramin, 0x020c, upper_32_bits(vm_size - 1));
+
+ *pchan = chan;
+ return 0;
}
int
nvc0_instmem_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
- u64 chan, pgt3, imem, lim3 = dev_priv->ramin_size - 1;
- int ret, i;
+ struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
+ struct pci_dev *pdev = dev->pdev;
+ struct nvc0_instmem_priv *priv;
+ struct nouveau_vm *vm = NULL;
+ int ret;
- dev_priv->ramin_rsvd_vram = 1 * 1024 * 1024;
- chan = dev_priv->vram_size - dev_priv->ramin_rsvd_vram;
- imem = 4096 + 4096 + 32768;
-
- nv_wr32(dev, 0x001700, chan >> 16);
-
- /* channel setup */
- nv_wr32(dev, 0x700200, lower_32_bits(chan + 0x1000));
- nv_wr32(dev, 0x700204, upper_32_bits(chan + 0x1000));
- nv_wr32(dev, 0x700208, lower_32_bits(lim3));
- nv_wr32(dev, 0x70020c, upper_32_bits(lim3));
-
- /* point pgd -> pgt */
- nv_wr32(dev, 0x701000, 0);
- nv_wr32(dev, 0x701004, ((chan + 0x2000) >> 8) | 1);
-
- /* point pgt -> physical vram for channel */
- pgt3 = 0x2000;
- for (i = 0; i < dev_priv->ramin_rsvd_vram; i += 4096, pgt3 += 8) {
- nv_wr32(dev, 0x700000 + pgt3, ((chan + i) >> 8) | 1);
- nv_wr32(dev, 0x700004 + pgt3, 0);
- }
-
- /* clear rest of pgt */
- for (; i < dev_priv->ramin_size; i += 4096, pgt3 += 8) {
- nv_wr32(dev, 0x700000 + pgt3, 0);
- nv_wr32(dev, 0x700004 + pgt3, 0);
- }
-
- /* point bar3 at the channel */
- nv_wr32(dev, 0x001714, 0xc0000000 | (chan >> 12));
-
- /* Global PRAMIN heap */
- ret = drm_mm_init(&dev_priv->ramin_heap, imem,
- dev_priv->ramin_size - imem);
- if (ret) {
- NV_ERROR(dev, "Failed to init RAMIN heap\n");
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
return -ENOMEM;
- }
+ pinstmem->priv = priv;
+ /* BAR3 VM */
+ ret = nouveau_vm_new(dev, 0, pci_resource_len(pdev, 3), 0,
+ &dev_priv->bar3_vm);
+ if (ret)
+ goto error;
+
+ ret = nouveau_gpuobj_new(dev, NULL,
+ (pci_resource_len(pdev, 3) >> 12) * 8, 0,
+ NVOBJ_FLAG_DONT_MAP |
+ NVOBJ_FLAG_ZERO_ALLOC,
+ &dev_priv->bar3_vm->pgt[0].obj[0]);
+ if (ret)
+ goto error;
+ dev_priv->bar3_vm->pgt[0].refcount[0] = 1;
+
+ nv50_instmem_map(dev_priv->bar3_vm->pgt[0].obj[0]);
+
+ ret = nouveau_gpuobj_new(dev, NULL, 0x8000, 4096,
+ NVOBJ_FLAG_ZERO_ALLOC, &priv->bar3_pgd);
+ if (ret)
+ goto error;
+
+ ret = nouveau_vm_ref(dev_priv->bar3_vm, &vm, priv->bar3_pgd);
+ if (ret)
+ goto error;
+ nouveau_vm_ref(NULL, &vm, NULL);
+
+ ret = nvc0_channel_new(dev, 8192, dev_priv->bar3_vm, &priv->bar3,
+ priv->bar3_pgd, pci_resource_len(dev->pdev, 3));
+ if (ret)
+ goto error;
+
+ /* BAR1 VM */
+ ret = nouveau_vm_new(dev, 0, pci_resource_len(pdev, 1), 0, &vm);
+ if (ret)
+ goto error;
+
+ ret = nouveau_gpuobj_new(dev, NULL, 0x8000, 4096,
+ NVOBJ_FLAG_ZERO_ALLOC, &priv->bar1_pgd);
+ if (ret)
+ goto error;
+
+ ret = nouveau_vm_ref(vm, &dev_priv->bar1_vm, priv->bar1_pgd);
+ if (ret)
+ goto error;
+ nouveau_vm_ref(NULL, &vm, NULL);
+
+ ret = nvc0_channel_new(dev, 8192, dev_priv->bar1_vm, &priv->bar1,
+ priv->bar1_pgd, pci_resource_len(dev->pdev, 1));
+ if (ret)
+ goto error;
+
+ nvc0_instmem_resume(dev);
return 0;
+error:
+ nvc0_instmem_takedown(dev);
+ return ret;
}
void
nvc0_instmem_takedown(struct drm_device *dev)
{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nvc0_instmem_priv *priv = dev_priv->engine.instmem.priv;
+ struct nouveau_vm *vm = NULL;
+
+ nvc0_instmem_suspend(dev);
+
+ nv_wr32(dev, 0x1704, 0x00000000);
+ nv_wr32(dev, 0x1714, 0x00000000);
+
+ nvc0_channel_del(&priv->bar1);
+ nouveau_vm_ref(NULL, &dev_priv->bar1_vm, priv->bar1_pgd);
+ nouveau_gpuobj_ref(NULL, &priv->bar1_pgd);
+
+ nvc0_channel_del(&priv->bar3);
+ nouveau_vm_ref(dev_priv->bar3_vm, &vm, NULL);
+ nouveau_vm_ref(NULL, &vm, priv->bar3_pgd);
+ nouveau_gpuobj_ref(NULL, &priv->bar3_pgd);
+ nouveau_gpuobj_ref(NULL, &dev_priv->bar3_vm->pgt[0].obj[0]);
+ nouveau_vm_ref(NULL, &dev_priv->bar3_vm, NULL);
+
+ dev_priv->engine.instmem.priv = NULL;
+ kfree(priv);
}
diff --git a/drivers/gpu/drm/nouveau/nvc0_vram.c b/drivers/gpu/drm/nouveau/nvc0_vram.c
new file mode 100644
index 0000000..41fcae5
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvc0_vram.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2010 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 "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_mm.h"
+
+bool
+nvc0_vram_flags_valid(struct drm_device *dev, u32 tile_flags)
+{
+ if (likely(!(tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK)))
+ return true;
+ return false;
+}
+
+int
+nvc0_vram_new(struct drm_device *dev, u64 size, u32 align, u32 ncmin,
+ u32 type, struct nouveau_vram **pvram)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct ttm_bo_device *bdev = &dev_priv->ttm.bdev;
+ struct ttm_mem_type_manager *man = &bdev->man[TTM_PL_VRAM];
+ struct nouveau_mm *mm = man->priv;
+ struct nouveau_mm_node *r;
+ struct nouveau_vram *vram;
+ int ret;
+
+ size >>= 12;
+ align >>= 12;
+ ncmin >>= 12;
+
+ vram = kzalloc(sizeof(*vram), GFP_KERNEL);
+ if (!vram)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&vram->regions);
+ vram->dev = dev_priv->dev;
+ vram->memtype = type;
+ vram->size = size;
+
+ mutex_lock(&mm->mutex);
+ do {
+ ret = nouveau_mm_get(mm, 1, size, ncmin, align, &r);
+ if (ret) {
+ mutex_unlock(&mm->mutex);
+ nv50_vram_del(dev, &vram);
+ return ret;
+ }
+
+ list_add_tail(&r->rl_entry, &vram->regions);
+ size -= r->length;
+ } while (size);
+ mutex_unlock(&mm->mutex);
+
+ r = list_first_entry(&vram->regions, struct nouveau_mm_node, rl_entry);
+ vram->offset = (u64)r->offset << 12;
+ *pvram = vram;
+ return 0;
+}
+
+int
+nvc0_vram_init(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+ dev_priv->vram_size = nv_rd32(dev, 0x10f20c) << 20;
+ dev_priv->vram_size *= nv_rd32(dev, 0x121c74);
+ dev_priv->vram_rblock_size = 4096;
+ return 0;
+}