Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm merge (part 1) from Dave Airlie:
 "So first of all my tree and uapi stuff has a conflict mess, its my
  fault as the nouveau stuff didn't hit -next as were trying to rebase
  regressions out of it before we merged.

  Highlights:
   - SH mobile modesetting driver and associated helpers
   - some DRM core documentation
   - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
     combined pte writing, ilk rc6 support,
   - nouveau: major driver rework into a hw core driver, makes features
     like SLI a lot saner to implement,
   - psb: add eDP/DP support for Cedarview
   - radeon: 2 layer page tables, async VM pte updates, better PLL
     selection for > 2 screens, better ACPI interactions

  The rest is general grab bag of fixes.

  So why part 1? well I have the exynos pull req which came in a bit
  late but was waiting for me to do something they shouldn't have and it
  looks fairly safe, and David Howells has some more header cleanups
  he'd like me to pull, that seem like a good idea, but I'd like to get
  this merge out of the way so -next dosen't get blocked."

Tons of conflicts mostly due to silly include line changes, but mostly
mindless.  A few other small semantic conflicts too, noted from Dave's
pre-merged branch.

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
  drm/nv98/crypt: fix fuc build with latest envyas
  drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
  drm/nv41/vm: fix and enable use of "real" pciegart
  drm/nv44/vm: fix and enable use of "real" pciegart
  drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
  drm/nouveau: store supported dma mask in vmmgr
  drm/nvc0/ibus: initial implementation of subdev
  drm/nouveau/therm: add support for fan-control modes
  drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
  drm/nouveau/therm: calculate the pwm divisor on nv50+
  drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
  drm/nouveau/therm: move thermal-related functions to the therm subdev
  drm/nouveau/bios: parse the pwm divisor from the perf table
  drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
  drm/nouveau/therm: rework thermal table parsing
  drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
  drm/nouveau: fix pm initialization order
  drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
  drm/nouveau: log channel debug/error messages from client object rather than drm client
  drm/nouveau: have drm debugging macros build on top of core macros
  ...

7 files changed, 1470 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/base.c b/drivers/gpu/drm/nouveau/core/subdev/vm/base.c
new file mode 100644
index 0000000..082c11b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/base.c
@@ -0,0 +1,478 @@
+/*
+ * 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 <core/gpuobj.h>
+#include <core/mm.h>
+
+#include <subdev/fb.h>
+#include <subdev/vm.h>
+
+void
+nouveau_vm_map_at(struct nouveau_vma *vma, u64 delta, struct nouveau_mem *node)
+{
+	struct nouveau_vm *vm = vma->vm;
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	struct nouveau_mm_node *r;
+	int big = vma->node->type != vmm->spg_shift;
+	u32 offset = vma->node->offset + (delta >> 12);
+	u32 bits = vma->node->type - 12;
+	u32 pde  = (offset >> vmm->pgt_bits) - vm->fpde;
+	u32 pte  = (offset & ((1 << vmm->pgt_bits) - 1)) >> bits;
+	u32 max  = 1 << (vmm->pgt_bits - bits);
+	u32 end, len;
+
+	delta = 0;
+	list_for_each_entry(r, &node->regions, rl_entry) {
+		u64 phys = (u64)r->offset << 12;
+		u32 num  = r->length >> bits;
+
+		while (num) {
+			struct nouveau_gpuobj *pgt = vm->pgt[pde].obj[big];
+
+			end = (pte + num);
+			if (unlikely(end >= max))
+				end = max;
+			len = end - pte;
+
+			vmm->map(vma, pgt, node, pte, len, phys, delta);
+
+			num -= len;
+			pte += len;
+			if (unlikely(end >= max)) {
+				phys += len << (bits + 12);
+				pde++;
+				pte = 0;
+			}
+
+			delta += (u64)len << vma->node->type;
+		}
+	}
+
+	vmm->flush(vm);
+}
+
+void
+nouveau_vm_map(struct nouveau_vma *vma, struct nouveau_mem *node)
+{
+	nouveau_vm_map_at(vma, 0, node);
+}
+
+void
+nouveau_vm_map_sg_table(struct nouveau_vma *vma, u64 delta, u64 length,
+			struct nouveau_mem *mem)
+{
+	struct nouveau_vm *vm = vma->vm;
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	int big = vma->node->type != vmm->spg_shift;
+	u32 offset = vma->node->offset + (delta >> 12);
+	u32 bits = vma->node->type - 12;
+	u32 num  = length >> vma->node->type;
+	u32 pde  = (offset >> vmm->pgt_bits) - vm->fpde;
+	u32 pte  = (offset & ((1 << vmm->pgt_bits) - 1)) >> bits;
+	u32 max  = 1 << (vmm->pgt_bits - bits);
+	unsigned m, sglen;
+	u32 end, len;
+	int i;
+	struct scatterlist *sg;
+
+	for_each_sg(mem->sg->sgl, sg, mem->sg->nents, i) {
+		struct nouveau_gpuobj *pgt = vm->pgt[pde].obj[big];
+		sglen = sg_dma_len(sg) >> PAGE_SHIFT;
+
+		end = pte + sglen;
+		if (unlikely(end >= max))
+			end = max;
+		len = end - pte;
+
+		for (m = 0; m < len; m++) {
+			dma_addr_t addr = sg_dma_address(sg) + (m << PAGE_SHIFT);
+
+			vmm->map_sg(vma, pgt, mem, pte, 1, &addr);
+			num--;
+			pte++;
+
+			if (num == 0)
+				goto finish;
+		}
+		if (unlikely(end >= max)) {
+			pde++;
+			pte = 0;
+		}
+		if (m < sglen) {
+			for (; m < sglen; m++) {
+				dma_addr_t addr = sg_dma_address(sg) + (m << PAGE_SHIFT);
+
+				vmm->map_sg(vma, pgt, mem, pte, 1, &addr);
+				num--;
+				pte++;
+				if (num == 0)
+					goto finish;
+			}
+		}
+
+	}
+finish:
+	vmm->flush(vm);
+}
+
+void
+nouveau_vm_map_sg(struct nouveau_vma *vma, u64 delta, u64 length,
+		  struct nouveau_mem *mem)
+{
+	struct nouveau_vm *vm = vma->vm;
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	dma_addr_t *list = mem->pages;
+	int big = vma->node->type != vmm->spg_shift;
+	u32 offset = vma->node->offset + (delta >> 12);
+	u32 bits = vma->node->type - 12;
+	u32 num  = length >> vma->node->type;
+	u32 pde  = (offset >> vmm->pgt_bits) - vm->fpde;
+	u32 pte  = (offset & ((1 << vmm->pgt_bits) - 1)) >> bits;
+	u32 max  = 1 << (vmm->pgt_bits - bits);
+	u32 end, len;
+
+	while (num) {
+		struct nouveau_gpuobj *pgt = vm->pgt[pde].obj[big];
+
+		end = (pte + num);
+		if (unlikely(end >= max))
+			end = max;
+		len = end - pte;
+
+		vmm->map_sg(vma, pgt, mem, pte, len, list);
+
+		num  -= len;
+		pte  += len;
+		list += len;
+		if (unlikely(end >= max)) {
+			pde++;
+			pte = 0;
+		}
+	}
+
+	vmm->flush(vm);
+}
+
+void
+nouveau_vm_unmap_at(struct nouveau_vma *vma, u64 delta, u64 length)
+{
+	struct nouveau_vm *vm = vma->vm;
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	int big = vma->node->type != vmm->spg_shift;
+	u32 offset = vma->node->offset + (delta >> 12);
+	u32 bits = vma->node->type - 12;
+	u32 num  = length >> vma->node->type;
+	u32 pde  = (offset >> vmm->pgt_bits) - vm->fpde;
+	u32 pte  = (offset & ((1 << vmm->pgt_bits) - 1)) >> bits;
+	u32 max  = 1 << (vmm->pgt_bits - bits);
+	u32 end, len;
+
+	while (num) {
+		struct nouveau_gpuobj *pgt = vm->pgt[pde].obj[big];
+
+		end = (pte + num);
+		if (unlikely(end >= max))
+			end = max;
+		len = end - pte;
+
+		vmm->unmap(pgt, pte, len);
+
+		num -= len;
+		pte += len;
+		if (unlikely(end >= max)) {
+			pde++;
+			pte = 0;
+		}
+	}
+
+	vmm->flush(vm);
+}
+
+void
+nouveau_vm_unmap(struct nouveau_vma *vma)
+{
+	nouveau_vm_unmap_at(vma, 0, (u64)vma->node->length << 12);
+}
+
+static void
+nouveau_vm_unmap_pgt(struct nouveau_vm *vm, int big, u32 fpde, u32 lpde)
+{
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	struct nouveau_vm_pgd *vpgd;
+	struct nouveau_vm_pgt *vpgt;
+	struct nouveau_gpuobj *pgt;
+	u32 pde;
+
+	for (pde = fpde; pde <= lpde; pde++) {
+		vpgt = &vm->pgt[pde - vm->fpde];
+		if (--vpgt->refcount[big])
+			continue;
+
+		pgt = vpgt->obj[big];
+		vpgt->obj[big] = NULL;
+
+		list_for_each_entry(vpgd, &vm->pgd_list, head) {
+			vmm->map_pgt(vpgd->obj, pde, vpgt->obj);
+		}
+
+		mutex_unlock(&vm->mm.mutex);
+		nouveau_gpuobj_ref(NULL, &pgt);
+		mutex_lock(&vm->mm.mutex);
+	}
+}
+
+static int
+nouveau_vm_map_pgt(struct nouveau_vm *vm, u32 pde, u32 type)
+{
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	struct nouveau_vm_pgt *vpgt = &vm->pgt[pde - vm->fpde];
+	struct nouveau_vm_pgd *vpgd;
+	struct nouveau_gpuobj *pgt;
+	int big = (type != vmm->spg_shift);
+	u32 pgt_size;
+	int ret;
+
+	pgt_size  = (1 << (vmm->pgt_bits + 12)) >> type;
+	pgt_size *= 8;
+
+	mutex_unlock(&vm->mm.mutex);
+	ret = nouveau_gpuobj_new(nv_object(vm->vmm), NULL, pgt_size, 0x1000,
+				 NVOBJ_FLAG_ZERO_ALLOC, &pgt);
+	mutex_lock(&vm->mm.mutex);
+	if (unlikely(ret))
+		return ret;
+
+	/* someone beat us to filling the PDE while we didn't have the lock */
+	if (unlikely(vpgt->refcount[big]++)) {
+		mutex_unlock(&vm->mm.mutex);
+		nouveau_gpuobj_ref(NULL, &pgt);
+		mutex_lock(&vm->mm.mutex);
+		return 0;
+	}
+
+	vpgt->obj[big] = pgt;
+	list_for_each_entry(vpgd, &vm->pgd_list, head) {
+		vmm->map_pgt(vpgd->obj, pde, vpgt->obj);
+	}
+
+	return 0;
+}
+
+int
+nouveau_vm_get(struct nouveau_vm *vm, u64 size, u32 page_shift,
+	       u32 access, struct nouveau_vma *vma)
+{
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	u32 align = (1 << page_shift) >> 12;
+	u32 msize = size >> 12;
+	u32 fpde, lpde, pde;
+	int ret;
+
+	mutex_lock(&vm->mm.mutex);
+	ret = nouveau_mm_head(&vm->mm, page_shift, msize, msize, align,
+			     &vma->node);
+	if (unlikely(ret != 0)) {
+		mutex_unlock(&vm->mm.mutex);
+		return ret;
+	}
+
+	fpde = (vma->node->offset >> vmm->pgt_bits);
+	lpde = (vma->node->offset + vma->node->length - 1) >> vmm->pgt_bits;
+
+	for (pde = fpde; pde <= lpde; pde++) {
+		struct nouveau_vm_pgt *vpgt = &vm->pgt[pde - vm->fpde];
+		int big = (vma->node->type != vmm->spg_shift);
+
+		if (likely(vpgt->refcount[big])) {
+			vpgt->refcount[big]++;
+			continue;
+		}
+
+		ret = nouveau_vm_map_pgt(vm, pde, vma->node->type);
+		if (ret) {
+			if (pde != fpde)
+				nouveau_vm_unmap_pgt(vm, big, fpde, pde - 1);
+			nouveau_mm_free(&vm->mm, &vma->node);
+			mutex_unlock(&vm->mm.mutex);
+			return ret;
+		}
+	}
+	mutex_unlock(&vm->mm.mutex);
+
+	vma->vm     = vm;
+	vma->offset = (u64)vma->node->offset << 12;
+	vma->access = access;
+	return 0;
+}
+
+void
+nouveau_vm_put(struct nouveau_vma *vma)
+{
+	struct nouveau_vm *vm = vma->vm;
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	u32 fpde, lpde;
+
+	if (unlikely(vma->node == NULL))
+		return;
+	fpde = (vma->node->offset >> vmm->pgt_bits);
+	lpde = (vma->node->offset + vma->node->length - 1) >> vmm->pgt_bits;
+
+	mutex_lock(&vm->mm.mutex);
+	nouveau_vm_unmap_pgt(vm, vma->node->type != vmm->spg_shift, fpde, lpde);
+	nouveau_mm_free(&vm->mm, &vma->node);
+	mutex_unlock(&vm->mm.mutex);
+}
+
+int
+nouveau_vm_create(struct nouveau_vmmgr *vmm, u64 offset, u64 length,
+		  u64 mm_offset, u32 block, struct nouveau_vm **pvm)
+{
+	struct nouveau_vm *vm;
+	u64 mm_length = (offset + length) - mm_offset;
+	int ret;
+
+	vm = *pvm = kzalloc(sizeof(*vm), GFP_KERNEL);
+	if (!vm)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&vm->pgd_list);
+	vm->vmm = vmm;
+	vm->refcount = 1;
+	vm->fpde = offset >> (vmm->pgt_bits + 12);
+	vm->lpde = (offset + length - 1) >> (vmm->pgt_bits + 12);
+
+	vm->pgt  = kcalloc(vm->lpde - vm->fpde + 1, sizeof(*vm->pgt), GFP_KERNEL);
+	if (!vm->pgt) {
+		kfree(vm);
+		return -ENOMEM;
+	}
+
+	ret = nouveau_mm_init(&vm->mm, mm_offset >> 12, mm_length >> 12,
+			      block >> 12);
+	if (ret) {
+		kfree(vm->pgt);
+		kfree(vm);
+		return ret;
+	}
+
+	return 0;
+}
+
+int
+nouveau_vm_new(struct nouveau_device *device, u64 offset, u64 length,
+	       u64 mm_offset, struct nouveau_vm **pvm)
+{
+	struct nouveau_vmmgr *vmm = nouveau_vmmgr(device);
+	return vmm->create(vmm, offset, length, mm_offset, pvm);
+}
+
+static int
+nouveau_vm_link(struct nouveau_vm *vm, struct nouveau_gpuobj *pgd)
+{
+	struct nouveau_vmmgr *vmm = vm->vmm;
+	struct nouveau_vm_pgd *vpgd;
+	int i;
+
+	if (!pgd)
+		return 0;
+
+	vpgd = kzalloc(sizeof(*vpgd), GFP_KERNEL);
+	if (!vpgd)
+		return -ENOMEM;
+
+	nouveau_gpuobj_ref(pgd, &vpgd->obj);
+
+	mutex_lock(&vm->mm.mutex);
+	for (i = vm->fpde; i <= vm->lpde; i++)
+		vmm->map_pgt(pgd, i, vm->pgt[i - vm->fpde].obj);
+	list_add(&vpgd->head, &vm->pgd_list);
+	mutex_unlock(&vm->mm.mutex);
+	return 0;
+}
+
+static void
+nouveau_vm_unlink(struct nouveau_vm *vm, struct nouveau_gpuobj *mpgd)
+{
+	struct nouveau_vm_pgd *vpgd, *tmp;
+	struct nouveau_gpuobj *pgd = NULL;
+
+	if (!mpgd)
+		return;
+
+	mutex_lock(&vm->mm.mutex);
+	list_for_each_entry_safe(vpgd, tmp, &vm->pgd_list, head) {
+		if (vpgd->obj == mpgd) {
+			pgd = vpgd->obj;
+			list_del(&vpgd->head);
+			kfree(vpgd);
+			break;
+		}
+	}
+	mutex_unlock(&vm->mm.mutex);
+
+	nouveau_gpuobj_ref(NULL, &pgd);
+}
+
+static void
+nouveau_vm_del(struct nouveau_vm *vm)
+{
+	struct nouveau_vm_pgd *vpgd, *tmp;
+
+	list_for_each_entry_safe(vpgd, tmp, &vm->pgd_list, head) {
+		nouveau_vm_unlink(vm, vpgd->obj);
+	}
+
+	nouveau_mm_fini(&vm->mm);
+	kfree(vm->pgt);
+	kfree(vm);
+}
+
+int
+nouveau_vm_ref(struct nouveau_vm *ref, struct nouveau_vm **ptr,
+	       struct nouveau_gpuobj *pgd)
+{
+	struct nouveau_vm *vm;
+	int ret;
+
+	vm = ref;
+	if (vm) {
+		ret = nouveau_vm_link(vm, pgd);
+		if (ret)
+			return ret;
+
+		vm->refcount++;
+	}
+
+	vm = *ptr;
+	*ptr = ref;
+
+	if (vm) {
+		nouveau_vm_unlink(vm, pgd);
+
+		if (--vm->refcount == 0)
+			nouveau_vm_del(vm);
+	}
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nv04.c
new file mode 100644
index 0000000..6adbbc9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv04.c
@@ -0,0 +1,151 @@
+/*
+ * 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 <core/gpuobj.h>
+
+#include "nv04.h"
+
+#define NV04_PDMA_SIZE (128 * 1024 * 1024)
+#define NV04_PDMA_PAGE (  4 * 1024)
+
+/*******************************************************************************
+ * VM map/unmap callbacks
+ ******************************************************************************/
+
+static void
+nv04_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+	       struct nouveau_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
+{
+	pte = 0x00008 + (pte * 4);
+	while (cnt) {
+		u32 page = PAGE_SIZE / NV04_PDMA_PAGE;
+		u32 phys = (u32)*list++;
+		while (cnt && page--) {
+			nv_wo32(pgt, pte, phys | 3);
+			phys += NV04_PDMA_PAGE;
+			pte += 4;
+			cnt -= 1;
+		}
+	}
+}
+
+static void
+nv04_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
+{
+	pte = 0x00008 + (pte * 4);
+	while (cnt--) {
+		nv_wo32(pgt, pte, 0x00000000);
+		pte += 4;
+	}
+}
+
+static void
+nv04_vm_flush(struct nouveau_vm *vm)
+{
+}
+
+/*******************************************************************************
+ * VM object
+ ******************************************************************************/
+
+int
+nv04_vm_create(struct nouveau_vmmgr *vmm, u64 offset, u64 length, u64 mmstart,
+	       struct nouveau_vm **pvm)
+{
+	return -EINVAL;
+}
+
+/*******************************************************************************
+ * VMMGR subdev
+ ******************************************************************************/
+
+static int
+nv04_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		struct nouveau_oclass *oclass, void *data, u32 size,
+		struct nouveau_object **pobject)
+{
+	struct nv04_vmmgr_priv *priv;
+	struct nouveau_gpuobj *dma;
+	int ret;
+
+	ret = nouveau_vmmgr_create(parent, engine, oclass, "PCIGART",
+				   "pcigart", &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	priv->base.create = nv04_vm_create;
+	priv->base.limit = NV04_PDMA_SIZE;
+	priv->base.dma_bits = 32;
+	priv->base.pgt_bits = 32 - 12;
+	priv->base.spg_shift = 12;
+	priv->base.lpg_shift = 12;
+	priv->base.map_sg = nv04_vm_map_sg;
+	priv->base.unmap = nv04_vm_unmap;
+	priv->base.flush = nv04_vm_flush;
+
+	ret = nouveau_vm_create(&priv->base, 0, NV04_PDMA_SIZE, 0, 4096,
+				&priv->vm);
+	if (ret)
+		return ret;
+
+	ret = nouveau_gpuobj_new(parent, NULL,
+				 (NV04_PDMA_SIZE / NV04_PDMA_PAGE) * 4 +
+				 8, 16, NVOBJ_FLAG_ZERO_ALLOC,
+				 &priv->vm->pgt[0].obj[0]);
+	dma = priv->vm->pgt[0].obj[0];
+	priv->vm->pgt[0].refcount[0] = 1;
+	if (ret)
+		return ret;
+
+	nv_wo32(dma, 0x00000, 0x0002103d); /* PCI, RW, PT, !LN */
+	nv_wo32(dma, 0x00004, NV04_PDMA_SIZE - 1);
+	return 0;
+}
+
+void
+nv04_vmmgr_dtor(struct nouveau_object *object)
+{
+	struct nv04_vmmgr_priv *priv = (void *)object;
+	if (priv->vm) {
+		nouveau_gpuobj_ref(NULL, &priv->vm->pgt[0].obj[0]);
+		nouveau_vm_ref(NULL, &priv->vm, NULL);
+	}
+	if (priv->nullp) {
+		pci_free_consistent(nv_device(priv)->pdev, 16 * 1024,
+				    priv->nullp, priv->null);
+	}
+	nouveau_vmmgr_destroy(&priv->base);
+}
+
+struct nouveau_oclass
+nv04_vmmgr_oclass = {
+	.handle = NV_SUBDEV(VM, 0x04),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv04_vmmgr_ctor,
+		.dtor = nv04_vmmgr_dtor,
+		.init = _nouveau_vmmgr_init,
+		.fini = _nouveau_vmmgr_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv04.h b/drivers/gpu/drm/nouveau/core/subdev/vm/nv04.h
new file mode 100644
index 0000000..ec42d4b
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv04.h
@@ -0,0 +1,19 @@
+#ifndef __NV04_VMMGR_PRIV__
+#define __NV04_VMMGR_PRIV__
+
+#include <subdev/vm.h>
+
+struct nv04_vmmgr_priv {
+	struct nouveau_vmmgr base;
+	struct nouveau_vm *vm;
+	dma_addr_t null;
+	void *nullp;
+};
+
+static inline struct nv04_vmmgr_priv *
+nv04_vmmgr(void *obj)
+{
+	return (void *)nouveau_vmmgr(obj);
+}
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c
new file mode 100644
index 0000000..0203e1e
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv41.c
@@ -0,0 +1,158 @@
+/*
+ * 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 <core/gpuobj.h>
+#include <core/option.h>
+
+#include <subdev/timer.h>
+#include <subdev/vm.h>
+
+#include "nv04.h"
+
+#define NV41_GART_SIZE (512 * 1024 * 1024)
+#define NV41_GART_PAGE (  4 * 1024)
+
+/*******************************************************************************
+ * VM map/unmap callbacks
+ ******************************************************************************/
+
+static void
+nv41_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+	       struct nouveau_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
+{
+	pte = pte * 4;
+	while (cnt) {
+		u32 page = PAGE_SIZE / NV41_GART_PAGE;
+		u64 phys = (u64)*list++;
+		while (cnt && page--) {
+			nv_wo32(pgt, pte, (phys >> 7) | 1);
+			phys += NV41_GART_PAGE;
+			pte += 4;
+			cnt -= 1;
+		}
+	}
+}
+
+static void
+nv41_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
+{
+	pte = pte * 4;
+	while (cnt--) {
+		nv_wo32(pgt, pte, 0x00000000);
+		pte += 4;
+	}
+}
+
+static void
+nv41_vm_flush(struct nouveau_vm *vm)
+{
+	struct nv04_vm_priv *priv = (void *)vm->vmm;
+
+	mutex_lock(&nv_subdev(priv)->mutex);
+	nv_wr32(priv, 0x100810, 0x00000022);
+	if (!nv_wait(priv, 0x100810, 0x00000020, 0x00000020)) {
+		nv_warn(priv, "flush timeout, 0x%08x\n",
+			nv_rd32(priv, 0x100810));
+	}
+	nv_wr32(priv, 0x100810, 0x00000000);
+	mutex_unlock(&nv_subdev(priv)->mutex);
+}
+
+/*******************************************************************************
+ * VMMGR subdev
+ ******************************************************************************/
+
+static int
+nv41_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		struct nouveau_oclass *oclass, void *data, u32 size,
+		struct nouveau_object **pobject)
+{
+	struct nouveau_device *device = nv_device(parent);
+	struct nv04_vmmgr_priv *priv;
+	int ret;
+
+	if (!nouveau_boolopt(device->cfgopt, "NvPCIE", true)) {
+		return nouveau_object_ctor(parent, engine, &nv04_vmmgr_oclass,
+					   data, size, pobject);
+	}
+
+	ret = nouveau_vmmgr_create(parent, engine, oclass, "PCIEGART",
+				   "pciegart", &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	priv->base.create = nv04_vm_create;
+	priv->base.limit = NV41_GART_SIZE;
+	priv->base.dma_bits = 39;
+	priv->base.pgt_bits = 32 - 12;
+	priv->base.spg_shift = 12;
+	priv->base.lpg_shift = 12;
+	priv->base.map_sg = nv41_vm_map_sg;
+	priv->base.unmap = nv41_vm_unmap;
+	priv->base.flush = nv41_vm_flush;
+
+	ret = nouveau_vm_create(&priv->base, 0, NV41_GART_SIZE, 0, 4096,
+				&priv->vm);
+	if (ret)
+		return ret;
+
+	ret = nouveau_gpuobj_new(parent, NULL,
+				(NV41_GART_SIZE / NV41_GART_PAGE) * 4,
+				 16, NVOBJ_FLAG_ZERO_ALLOC,
+				 &priv->vm->pgt[0].obj[0]);
+	priv->vm->pgt[0].refcount[0] = 1;
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int
+nv41_vmmgr_init(struct nouveau_object *object)
+{
+	struct nv04_vmmgr_priv *priv = (void *)object;
+	struct nouveau_gpuobj *dma = priv->vm->pgt[0].obj[0];
+	int ret;
+
+	ret = nouveau_vmmgr_init(&priv->base);
+	if (ret)
+		return ret;
+
+	nv_wr32(priv, 0x100800, dma->addr | 0x00000002);
+	nv_mask(priv, 0x10008c, 0x00000100, 0x00000100);
+	nv_wr32(priv, 0x100820, 0x00000000);
+	return 0;
+}
+
+struct nouveau_oclass
+nv41_vmmgr_oclass = {
+	.handle = NV_SUBDEV(VM, 0x41),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv41_vmmgr_ctor,
+		.dtor = nv04_vmmgr_dtor,
+		.init = nv41_vmmgr_init,
+		.fini = _nouveau_vmmgr_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv44.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nv44.c
new file mode 100644
index 0000000..0ac18d0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv44.c
@@ -0,0 +1,248 @@
+/*
+ * 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 <core/gpuobj.h>
+#include <core/option.h>
+
+#include <subdev/timer.h>
+#include <subdev/vm.h>
+
+#include "nv04.h"
+
+#define NV44_GART_SIZE (512 * 1024 * 1024)
+#define NV44_GART_PAGE (  4 * 1024)
+
+/*******************************************************************************
+ * VM map/unmap callbacks
+ ******************************************************************************/
+
+static void
+nv44_vm_fill(struct nouveau_gpuobj *pgt, dma_addr_t null,
+	     dma_addr_t *list, u32 pte, u32 cnt)
+{
+	u32 base = (pte << 2) & ~0x0000000f;
+	u32 tmp[4];
+
+	tmp[0] = nv_ro32(pgt, base + 0x0);
+	tmp[1] = nv_ro32(pgt, base + 0x4);
+	tmp[2] = nv_ro32(pgt, base + 0x8);
+	tmp[3] = nv_ro32(pgt, base + 0xc);
+
+	while (cnt--) {
+		u32 addr = list ? (*list++ >> 12) : (null >> 12);
+		switch (pte++ & 0x3) {
+		case 0:
+			tmp[0] &= ~0x07ffffff;
+			tmp[0] |= addr;
+			break;
+		case 1:
+			tmp[0] &= ~0xf8000000;
+			tmp[0] |= addr << 27;
+			tmp[1] &= ~0x003fffff;
+			tmp[1] |= addr >> 5;
+			break;
+		case 2:
+			tmp[1] &= ~0xffc00000;
+			tmp[1] |= addr << 22;
+			tmp[2] &= ~0x0001ffff;
+			tmp[2] |= addr >> 10;
+			break;
+		case 3:
+			tmp[2] &= ~0xfffe0000;
+			tmp[2] |= addr << 17;
+			tmp[3] &= ~0x00000fff;
+			tmp[3] |= addr >> 15;
+			break;
+		}
+	}
+
+	nv_wo32(pgt, base + 0x0, tmp[0]);
+	nv_wo32(pgt, base + 0x4, tmp[1]);
+	nv_wo32(pgt, base + 0x8, tmp[2]);
+	nv_wo32(pgt, base + 0xc, tmp[3] | 0x40000000);
+}
+
+static void
+nv44_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+	       struct nouveau_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
+{
+	struct nv04_vmmgr_priv *priv = (void *)vma->vm->vmm;
+	u32 tmp[4];
+	int i;
+
+	if (pte & 3) {
+		u32  max = 4 - (pte & 3);
+		u32 part = (cnt > max) ? max : cnt;
+		nv44_vm_fill(pgt, priv->null, list, pte, part);
+		pte  += part;
+		list += part;
+		cnt  -= part;
+	}
+
+	while (cnt >= 4) {
+		for (i = 0; i < 4; i++)
+			tmp[i] = *list++ >> 12;
+		nv_wo32(pgt, pte++ * 4, tmp[0] >>  0 | tmp[1] << 27);
+		nv_wo32(pgt, pte++ * 4, tmp[1] >>  5 | tmp[2] << 22);
+		nv_wo32(pgt, pte++ * 4, tmp[2] >> 10 | tmp[3] << 17);
+		nv_wo32(pgt, pte++ * 4, tmp[3] >> 15 | 0x40000000);
+		cnt -= 4;
+	}
+
+	if (cnt)
+		nv44_vm_fill(pgt, priv->null, list, pte, cnt);
+}
+
+static void
+nv44_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
+{
+	struct nv04_vmmgr_priv *priv = (void *)nouveau_vmmgr(pgt);
+
+	if (pte & 3) {
+		u32  max = 4 - (pte & 3);
+		u32 part = (cnt > max) ? max : cnt;
+		nv44_vm_fill(pgt, priv->null, NULL, pte, part);
+		pte  += part;
+		cnt  -= part;
+	}
+
+	while (cnt >= 4) {
+		nv_wo32(pgt, pte++ * 4, 0x00000000);
+		nv_wo32(pgt, pte++ * 4, 0x00000000);
+		nv_wo32(pgt, pte++ * 4, 0x00000000);
+		nv_wo32(pgt, pte++ * 4, 0x00000000);
+		cnt -= 4;
+	}
+
+	if (cnt)
+		nv44_vm_fill(pgt, priv->null, NULL, pte, cnt);
+}
+
+static void
+nv44_vm_flush(struct nouveau_vm *vm)
+{
+	struct nv04_vmmgr_priv *priv = (void *)vm->vmm;
+	nv_wr32(priv, 0x100814, priv->base.limit - NV44_GART_PAGE);
+	nv_wr32(priv, 0x100808, 0x00000020);
+	if (!nv_wait(priv, 0x100808, 0x00000001, 0x00000001))
+		nv_error(priv, "timeout: 0x%08x\n", nv_rd32(priv, 0x100808));
+	nv_wr32(priv, 0x100808, 0x00000000);
+}
+
+/*******************************************************************************
+ * VMMGR subdev
+ ******************************************************************************/
+
+static int
+nv44_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		struct nouveau_oclass *oclass, void *data, u32 size,
+		struct nouveau_object **pobject)
+{
+	struct nouveau_device *device = nv_device(parent);
+	struct nv04_vmmgr_priv *priv;
+	int ret;
+
+	if (!nouveau_boolopt(device->cfgopt, "NvPCIE", true)) {
+		return nouveau_object_ctor(parent, engine, &nv04_vmmgr_oclass,
+					   data, size, pobject);
+	}
+
+	ret = nouveau_vmmgr_create(parent, engine, oclass, "PCIEGART",
+				   "pciegart", &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	priv->base.create = nv04_vm_create;
+	priv->base.limit = NV44_GART_SIZE;
+	priv->base.dma_bits = 39;
+	priv->base.pgt_bits = 32 - 12;
+	priv->base.spg_shift = 12;
+	priv->base.lpg_shift = 12;
+	priv->base.map_sg = nv44_vm_map_sg;
+	priv->base.unmap = nv44_vm_unmap;
+	priv->base.flush = nv44_vm_flush;
+
+	priv->nullp = pci_alloc_consistent(device->pdev, 16 * 1024, &priv->null);
+	if (!priv->nullp) {
+		nv_error(priv, "unable to allocate dummy pages\n");
+		return -ENOMEM;
+	}
+
+	ret = nouveau_vm_create(&priv->base, 0, NV44_GART_SIZE, 0, 4096,
+				&priv->vm);
+	if (ret)
+		return ret;
+
+	ret = nouveau_gpuobj_new(parent, NULL,
+				(NV44_GART_SIZE / NV44_GART_PAGE) * 4,
+				 512 * 1024, NVOBJ_FLAG_ZERO_ALLOC,
+				 &priv->vm->pgt[0].obj[0]);
+	priv->vm->pgt[0].refcount[0] = 1;
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int
+nv44_vmmgr_init(struct nouveau_object *object)
+{
+	struct nv04_vmmgr_priv *priv = (void *)object;
+	struct nouveau_gpuobj *gart = priv->vm->pgt[0].obj[0];
+	u32 addr;
+	int ret;
+
+	ret = nouveau_vmmgr_init(&priv->base);
+	if (ret)
+		return ret;
+
+	/* calculate vram address of this PRAMIN block, object must be
+	 * allocated on 512KiB alignment, and not exceed a total size
+	 * of 512KiB for this to work correctly
+	 */
+	addr  = nv_rd32(priv, 0x10020c);
+	addr -= ((gart->addr >> 19) + 1) << 19;
+
+	nv_wr32(priv, 0x100850, 0x80000000);
+	nv_wr32(priv, 0x100818, priv->null);
+	nv_wr32(priv, 0x100804, NV44_GART_SIZE);
+	nv_wr32(priv, 0x100850, 0x00008000);
+	nv_mask(priv, 0x10008c, 0x00000200, 0x00000200);
+	nv_wr32(priv, 0x100820, 0x00000000);
+	nv_wr32(priv, 0x10082c, 0x00000001);
+	nv_wr32(priv, 0x100800, addr | 0x00000010);
+	return 0;
+}
+
+struct nouveau_oclass
+nv44_vmmgr_oclass = {
+	.handle = NV_SUBDEV(VM, 0x44),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv44_vmmgr_ctor,
+		.dtor = nv04_vmmgr_dtor,
+		.init = nv44_vmmgr_init,
+		.fini = _nouveau_vmmgr_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nv50.c
new file mode 100644
index 0000000..e067f81
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nv50.c
@@ -0,0 +1,227 @@
+/*
+ * 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 <core/device.h>
+#include <core/gpuobj.h>
+
+#include <subdev/timer.h>
+#include <subdev/fb.h>
+#include <subdev/vm.h>
+
+struct nv50_vmmgr_priv {
+	struct nouveau_vmmgr base;
+	spinlock_t lock;
+};
+
+static void
+nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 pde,
+		struct nouveau_gpuobj *pgt[2])
+{
+	u64 phys = 0xdeadcafe00000000ULL;
+	u32 coverage = 0;
+
+	if (pgt[0]) {
+		phys = 0x00000003 | pgt[0]->addr; /* present, 4KiB pages */
+		coverage = (pgt[0]->size >> 3) << 12;
+	} else
+	if (pgt[1]) {
+		phys = 0x00000001 | pgt[1]->addr; /* present */
+		coverage = (pgt[1]->size >> 3) << 16;
+	}
+
+	if (phys & 1) {
+		if (coverage <= 32 * 1024 * 1024)
+			phys |= 0x60;
+		else if (coverage <= 64 * 1024 * 1024)
+			phys |= 0x40;
+		else if (coverage <= 128 * 1024 * 1024)
+			phys |= 0x20;
+	}
+
+	nv_wo32(pgd, (pde * 8) + 0, lower_32_bits(phys));
+	nv_wo32(pgd, (pde * 8) + 4, upper_32_bits(phys));
+}
+
+static inline u64
+vm_addr(struct nouveau_vma *vma, u64 phys, u32 memtype, u32 target)
+{
+	phys |= 1; /* present */
+	phys |= (u64)memtype << 40;
+	phys |= target << 4;
+	if (vma->access & NV_MEM_ACCESS_SYS)
+		phys |= (1 << 6);
+	if (!(vma->access & NV_MEM_ACCESS_WO))
+		phys |= (1 << 3);
+	return phys;
+}
+
+static void
+nv50_vm_map(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+	    struct nouveau_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta)
+{
+	u32 comp = (mem->memtype & 0x180) >> 7;
+	u32 block, target;
+	int i;
+
+	/* IGPs don't have real VRAM, re-target to stolen system memory */
+	target = 0;
+	if (nouveau_fb(vma->vm->vmm)->ram.stolen) {
+		phys += nouveau_fb(vma->vm->vmm)->ram.stolen;
+		target = 3;
+	}
+
+	phys  = vm_addr(vma, phys, mem->memtype, target);
+	pte <<= 3;
+	cnt <<= 3;
+
+	while (cnt) {
+		u32 offset_h = upper_32_bits(phys);
+		u32 offset_l = lower_32_bits(phys);
+
+		for (i = 7; i >= 0; i--) {
+			block = 1 << (i + 3);
+			if (cnt >= block && !(pte & (block - 1)))
+				break;
+		}
+		offset_l |= (i << 7);
+
+		phys += block << (vma->node->type - 3);
+		cnt  -= block;
+		if (comp) {
+			u32 tag = mem->tag->offset + ((delta >> 16) * comp);
+			offset_h |= (tag << 17);
+			delta    += block << (vma->node->type - 3);
+		}
+
+		while (block) {
+			nv_wo32(pgt, pte + 0, offset_l);
+			nv_wo32(pgt, pte + 4, offset_h);
+			pte += 8;
+			block -= 8;
+		}
+	}
+}
+
+static void
+nv50_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+	       struct nouveau_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
+{
+	u32 target = (vma->access & NV_MEM_ACCESS_NOSNOOP) ? 3 : 2;
+	pte <<= 3;
+	while (cnt--) {
+		u64 phys = vm_addr(vma, (u64)*list++, mem->memtype, target);
+		nv_wo32(pgt, pte + 0, lower_32_bits(phys));
+		nv_wo32(pgt, pte + 4, upper_32_bits(phys));
+		pte += 8;
+	}
+}
+
+static void
+nv50_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
+{
+	pte <<= 3;
+	while (cnt--) {
+		nv_wo32(pgt, pte + 0, 0x00000000);
+		nv_wo32(pgt, pte + 4, 0x00000000);
+		pte += 8;
+	}
+}
+
+static void
+nv50_vm_flush(struct nouveau_vm *vm)
+{
+	struct nouveau_engine *engine;
+	int i;
+
+	for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
+		if (atomic_read(&vm->engref[i])) {
+			engine = nouveau_engine(vm->vmm, i);
+			if (engine && engine->tlb_flush)
+				engine->tlb_flush(engine);
+		}
+	}
+}
+
+void
+nv50_vm_flush_engine(struct nouveau_subdev *subdev, int engine)
+{
+	struct nv50_vmmgr_priv *priv = (void *)nouveau_vmmgr(subdev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	nv_wr32(subdev, 0x100c80, (engine << 16) | 1);
+	if (!nv_wait(subdev, 0x100c80, 0x00000001, 0x00000000))
+		nv_error(subdev, "vm flush timeout: engine %d\n", engine);
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int
+nv50_vm_create(struct nouveau_vmmgr *vmm, u64 offset, u64 length,
+	       u64 mm_offset, struct nouveau_vm **pvm)
+{
+	u32 block = (1 << (vmm->pgt_bits + 12));
+	if (block > length)
+		block = length;
+
+	return nouveau_vm_create(vmm, offset, length, mm_offset, block, pvm);
+}
+
+static int
+nv50_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		struct nouveau_oclass *oclass, void *data, u32 size,
+		struct nouveau_object **pobject)
+{
+	struct nv50_vmmgr_priv *priv;
+	int ret;
+
+	ret = nouveau_vmmgr_create(parent, engine, oclass, "VM", "vm", &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	priv->base.limit = 1ULL << 40;
+	priv->base.dma_bits = 40;
+	priv->base.pgt_bits  = 29 - 12;
+	priv->base.spg_shift = 12;
+	priv->base.lpg_shift = 16;
+	priv->base.create = nv50_vm_create;
+	priv->base.map_pgt = nv50_vm_map_pgt;
+	priv->base.map = nv50_vm_map;
+	priv->base.map_sg = nv50_vm_map_sg;
+	priv->base.unmap = nv50_vm_unmap;
+	priv->base.flush = nv50_vm_flush;
+	spin_lock_init(&priv->lock);
+	return 0;
+}
+
+struct nouveau_oclass
+nv50_vmmgr_oclass = {
+	.handle = NV_SUBDEV(VM, 0x50),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nv50_vmmgr_ctor,
+		.dtor = _nouveau_vmmgr_dtor,
+		.init = _nouveau_vmmgr_init,
+		.fini = _nouveau_vmmgr_fini,
+	},
+};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c
new file mode 100644
index 0000000..30c61e6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/vm/nvc0.c
@@ -0,0 +1,189 @@
+/*
+ * 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 <core/device.h>
+#include <core/gpuobj.h>
+
+#include <subdev/timer.h>
+#include <subdev/fb.h>
+#include <subdev/vm.h>
+
+struct nvc0_vmmgr_priv {
+	struct nouveau_vmmgr base;
+	spinlock_t lock;
+};
+
+static void
+nvc0_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 index,
+		struct nouveau_gpuobj *pgt[2])
+{
+	u32 pde[2] = { 0, 0 };
+
+	if (pgt[0])
+		pde[1] = 0x00000001 | (pgt[0]->addr >> 8);
+	if (pgt[1])
+		pde[0] = 0x00000001 | (pgt[1]->addr >> 8);
+
+	nv_wo32(pgd, (index * 8) + 0, pde[0]);
+	nv_wo32(pgd, (index * 8) + 4, pde[1]);
+}
+
+static inline u64
+nvc0_vm_addr(struct nouveau_vma *vma, u64 phys, u32 memtype, u32 target)
+{
+	phys >>= 8;
+
+	phys |= 0x00000001; /* present */
+	if (vma->access & NV_MEM_ACCESS_SYS)
+		phys |= 0x00000002;
+
+	phys |= ((u64)target  << 32);
+	phys |= ((u64)memtype << 36);
+
+	return phys;
+}
+
+static void
+nvc0_vm_map(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+	    struct nouveau_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta)
+{
+	u32 next = 1 << (vma->node->type - 8);
+
+	phys  = nvc0_vm_addr(vma, phys, mem->memtype, 0);
+	pte <<= 3;
+	while (cnt--) {
+		nv_wo32(pgt, pte + 0, lower_32_bits(phys));
+		nv_wo32(pgt, pte + 4, upper_32_bits(phys));
+		phys += next;
+		pte  += 8;
+	}
+}
+
+static void
+nvc0_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
+	       struct nouveau_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
+{
+	u32 target = (vma->access & NV_MEM_ACCESS_NOSNOOP) ? 7 : 5;
+
+	pte <<= 3;
+	while (cnt--) {
+		u64 phys = nvc0_vm_addr(vma, *list++, mem->memtype, target);
+		nv_wo32(pgt, pte + 0, lower_32_bits(phys));
+		nv_wo32(pgt, pte + 4, upper_32_bits(phys));
+		pte += 8;
+	}
+}
+
+static void
+nvc0_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
+{
+	pte <<= 3;
+	while (cnt--) {
+		nv_wo32(pgt, pte + 0, 0x00000000);
+		nv_wo32(pgt, pte + 4, 0x00000000);
+		pte += 8;
+	}
+}
+
+void
+nvc0_vm_flush_engine(struct nouveau_subdev *subdev, u64 addr, int type)
+{
+	struct nvc0_vmmgr_priv *priv = (void *)nouveau_vmmgr(subdev);
+	unsigned long flags;
+
+	/* looks like maybe a "free flush slots" counter, the
+	 * faster you write to 0x100cbc to more it decreases
+	 */
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!nv_wait_ne(subdev, 0x100c80, 0x00ff0000, 0x00000000)) {
+		nv_error(subdev, "vm timeout 0: 0x%08x %d\n",
+			 nv_rd32(subdev, 0x100c80), type);
+	}
+
+	nv_wr32(subdev, 0x100cb8, addr >> 8);
+	nv_wr32(subdev, 0x100cbc, 0x80000000 | type);
+
+	/* wait for flush to be queued? */
+	if (!nv_wait(subdev, 0x100c80, 0x00008000, 0x00008000)) {
+		nv_error(subdev, "vm timeout 1: 0x%08x %d\n",
+			 nv_rd32(subdev, 0x100c80), type);
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void
+nvc0_vm_flush(struct nouveau_vm *vm)
+{
+	struct nouveau_vm_pgd *vpgd;
+
+	list_for_each_entry(vpgd, &vm->pgd_list, head) {
+		nvc0_vm_flush_engine(nv_subdev(vm->vmm), vpgd->obj->addr, 1);
+	}
+}
+
+static int
+nvc0_vm_create(struct nouveau_vmmgr *vmm, u64 offset, u64 length,
+	       u64 mm_offset, struct nouveau_vm **pvm)
+{
+	return nouveau_vm_create(vmm, offset, length, mm_offset, 4096, pvm);
+}
+
+static int
+nvc0_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+		struct nouveau_oclass *oclass, void *data, u32 size,
+		struct nouveau_object **pobject)
+{
+	struct nvc0_vmmgr_priv *priv;
+	int ret;
+
+	ret = nouveau_vmmgr_create(parent, engine, oclass, "VM", "vm", &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	priv->base.limit = 1ULL << 40;
+	priv->base.dma_bits = 40;
+	priv->base.pgt_bits  = 27 - 12;
+	priv->base.spg_shift = 12;
+	priv->base.lpg_shift = 17;
+	priv->base.create = nvc0_vm_create;
+	priv->base.map_pgt = nvc0_vm_map_pgt;
+	priv->base.map = nvc0_vm_map;
+	priv->base.map_sg = nvc0_vm_map_sg;
+	priv->base.unmap = nvc0_vm_unmap;
+	priv->base.flush = nvc0_vm_flush;
+	spin_lock_init(&priv->lock);
+	return 0;
+}
+
+struct nouveau_oclass
+nvc0_vmmgr_oclass = {
+	.handle = NV_SUBDEV(VM, 0xc0),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = nvc0_vmmgr_ctor,
+		.dtor = _nouveau_vmmgr_dtor,
+		.init = _nouveau_vmmgr_init,
+		.fini = _nouveau_vmmgr_fini,
+	},
+};