Skip to content

L
linux
Commit 3ee01281 authored by Ben Skeggs's avatar Ben Skeggs
Browse files
Options

drm/nouveau: modify vm to accomodate dual page tables for nvc0 

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 147dc38e
Show whitespace changes
Inline Side-by-side
Showing with 65 additions and 75 deletions
drivers/gpu/drm/nouveau/nouveau_vm.c
View file @ 3ee01281
...@@ -32,6 +32,7 @@ nouveau_vm_map_at(struct nouveau_vma *vma, u64 delta, struct nouveau_vram *vram) ...@@ -32,6 +32,7 @@ nouveau_vm_map_at(struct nouveau_vma *vma, u64 delta, struct nouveau_vram *vram)
{ {
struct nouveau_vm *vm = vma->vm; struct nouveau_vm *vm = vma->vm;
struct nouveau_mm_node *r; struct nouveau_mm_node *r;
int big = vma->node->type != vm->spg_shift;
u32 offset = vma->node->offset + (delta >> 12); u32 offset = vma->node->offset + (delta >> 12);
u32 bits = vma->node->type - 12; u32 bits = vma->node->type - 12;
u32 pde = (offset >> vm->pgt_bits) - vm->fpde; u32 pde = (offset >> vm->pgt_bits) - vm->fpde;
...@@ -44,7 +45,7 @@ nouveau_vm_map_at(struct nouveau_vma *vma, u64 delta, struct nouveau_vram *vram) ...@@ -44,7 +45,7 @@ nouveau_vm_map_at(struct nouveau_vma *vma, u64 delta, struct nouveau_vram *vram)
u32 num = r->length >> bits; u32 num = r->length >> bits;
while (num) { while (num) {
struct nouveau_gpuobj *pgt = vm->pgt[pde].obj; struct nouveau_gpuobj *pgt = vm->pgt[pde].obj[big];
end = (pte + num); end = (pte + num);
if (unlikely(end >= max)) if (unlikely(end >= max))
...@@ -76,6 +77,7 @@ nouveau_vm_map_sg(struct nouveau_vma *vma, u64 delta, u64 length, ...@@ -76,6 +77,7 @@ nouveau_vm_map_sg(struct nouveau_vma *vma, u64 delta, u64 length,
dma_addr_t *list) dma_addr_t *list)
{ {
struct nouveau_vm *vm = vma->vm; struct nouveau_vm *vm = vma->vm;
int big = vma->node->type != vm->spg_shift;
u32 offset = vma->node->offset + (delta >> 12); u32 offset = vma->node->offset + (delta >> 12);
u32 bits = vma->node->type - 12; u32 bits = vma->node->type - 12;
u32 num = length >> vma->node->type; u32 num = length >> vma->node->type;
...@@ -85,7 +87,7 @@ nouveau_vm_map_sg(struct nouveau_vma *vma, u64 delta, u64 length, ...@@ -85,7 +87,7 @@ nouveau_vm_map_sg(struct nouveau_vma *vma, u64 delta, u64 length,
u32 end, len; u32 end, len;
while (num) { while (num) {
struct nouveau_gpuobj *pgt = vm->pgt[pde].obj; struct nouveau_gpuobj *pgt = vm->pgt[pde].obj[big];
end = (pte + num); end = (pte + num);
if (unlikely(end >= max)) if (unlikely(end >= max))
...@@ -110,6 +112,7 @@ void ...@@ -110,6 +112,7 @@ void
nouveau_vm_unmap_at(struct nouveau_vma *vma, u64 delta, u64 length) nouveau_vm_unmap_at(struct nouveau_vma *vma, u64 delta, u64 length)
{ {
struct nouveau_vm *vm = vma->vm; struct nouveau_vm *vm = vma->vm;
int big = vma->node->type != vm->spg_shift;
u32 offset = vma->node->offset + (delta >> 12); u32 offset = vma->node->offset + (delta >> 12);
u32 bits = vma->node->type - 12; u32 bits = vma->node->type - 12;
u32 num = length >> vma->node->type; u32 num = length >> vma->node->type;
...@@ -119,7 +122,7 @@ nouveau_vm_unmap_at(struct nouveau_vma *vma, u64 delta, u64 length) ...@@ -119,7 +122,7 @@ nouveau_vm_unmap_at(struct nouveau_vma *vma, u64 delta, u64 length)
u32 end, len; u32 end, len;
while (num) { while (num) {
struct nouveau_gpuobj *pgt = vm->pgt[pde].obj; struct nouveau_gpuobj *pgt = vm->pgt[pde].obj[big];
end = (pte + num); end = (pte + num);
if (unlikely(end >= max)) if (unlikely(end >= max))
...@@ -146,7 +149,7 @@ nouveau_vm_unmap(struct nouveau_vma *vma) ...@@ -146,7 +149,7 @@ nouveau_vm_unmap(struct nouveau_vma *vma)
} }
static void static void
nouveau_vm_unmap_pgt(struct nouveau_vm *vm, u32 fpde, u32 lpde) nouveau_vm_unmap_pgt(struct nouveau_vm *vm, int big, u32 fpde, u32 lpde)
{ {
struct nouveau_vm_pgd *vpgd; struct nouveau_vm_pgd *vpgd;
struct nouveau_vm_pgt *vpgt; struct nouveau_vm_pgt *vpgt;
...@@ -155,16 +158,16 @@ nouveau_vm_unmap_pgt(struct nouveau_vm *vm, u32 fpde, u32 lpde) ...@@ -155,16 +158,16 @@ nouveau_vm_unmap_pgt(struct nouveau_vm *vm, u32 fpde, u32 lpde)
for (pde = fpde; pde <= lpde; pde++) { for (pde = fpde; pde <= lpde; pde++) {
vpgt = &vm->pgt[pde - vm->fpde]; vpgt = &vm->pgt[pde - vm->fpde];
if (--vpgt->refcount) if (--vpgt->refcount[big])
continue; continue;
pgt = vpgt->obj[big];
vpgt->obj[big] = NULL;
list_for_each_entry(vpgd, &vm->pgd_list, head) { list_for_each_entry(vpgd, &vm->pgd_list, head) {
vm->unmap_pgt(vpgd->obj, pde); vm->map_pgt(vpgd->obj, pde, vpgt->obj);
} }
pgt = vpgt->obj;
vpgt->obj = NULL;
mutex_unlock(&vm->mm->mutex); mutex_unlock(&vm->mm->mutex);
nouveau_gpuobj_ref(NULL, &pgt); nouveau_gpuobj_ref(NULL, &pgt);
mutex_lock(&vm->mm->mutex); mutex_lock(&vm->mm->mutex);
...@@ -177,6 +180,7 @@ nouveau_vm_map_pgt(struct nouveau_vm *vm, u32 pde, u32 type) ...@@ -177,6 +180,7 @@ nouveau_vm_map_pgt(struct nouveau_vm *vm, u32 pde, u32 type)
struct nouveau_vm_pgt *vpgt = &vm->pgt[pde - vm->fpde]; struct nouveau_vm_pgt *vpgt = &vm->pgt[pde - vm->fpde];
struct nouveau_vm_pgd *vpgd; struct nouveau_vm_pgd *vpgd;
struct nouveau_gpuobj *pgt; struct nouveau_gpuobj *pgt;
int big = (type != vm->spg_shift);
u32 pgt_size; u32 pgt_size;
int ret; int ret;
...@@ -191,19 +195,18 @@ nouveau_vm_map_pgt(struct nouveau_vm *vm, u32 pde, u32 type) ...@@ -191,19 +195,18 @@ nouveau_vm_map_pgt(struct nouveau_vm *vm, u32 pde, u32 type)
return ret; return ret;
/* someone beat us to filling the PDE while we didn't have the lock */ /* someone beat us to filling the PDE while we didn't have the lock */
if (unlikely(vpgt->refcount++)) { if (unlikely(vpgt->refcount[big]++)) {
mutex_unlock(&vm->mm->mutex); mutex_unlock(&vm->mm->mutex);
nouveau_gpuobj_ref(NULL, &pgt); nouveau_gpuobj_ref(NULL, &pgt);
mutex_lock(&vm->mm->mutex); mutex_lock(&vm->mm->mutex);
return 0; return 0;
} }
vpgt->obj[big] = pgt;
list_for_each_entry(vpgd, &vm->pgd_list, head) { list_for_each_entry(vpgd, &vm->pgd_list, head) {
vm->map_pgt(vpgd->obj, type, pde, pgt); vm->map_pgt(vpgd->obj, pde, vpgt->obj);
} }
vpgt->page_shift = type;
vpgt->obj = pgt;
return 0; return 0;
} }
...@@ -227,16 +230,17 @@ nouveau_vm_get(struct nouveau_vm *vm, u64 size, u32 page_shift, ...@@ -227,16 +230,17 @@ nouveau_vm_get(struct nouveau_vm *vm, u64 size, u32 page_shift,
lpde = (vma->node->offset + vma->node->length - 1) >> vm->pgt_bits; lpde = (vma->node->offset + vma->node->length - 1) >> vm->pgt_bits;
for (pde = fpde; pde <= lpde; pde++) { for (pde = fpde; pde <= lpde; pde++) {
struct nouveau_vm_pgt *vpgt = &vm->pgt[pde - vm->fpde]; struct nouveau_vm_pgt *vpgt = &vm->pgt[pde - vm->fpde];
int big = (vma->node->type != vm->spg_shift);
if (likely(vpgt->refcount)) { if (likely(vpgt->refcount[big])) {
vpgt->refcount++; vpgt->refcount[big]++;
continue; continue;
} }
ret = nouveau_vm_map_pgt(vm, pde, vma->node->type); ret = nouveau_vm_map_pgt(vm, pde, vma->node->type);
if (ret) { if (ret) {
if (pde != fpde) if (pde != fpde)
nouveau_vm_unmap_pgt(vm, fpde, pde - 1); nouveau_vm_unmap_pgt(vm, big, fpde, pde - 1);
nouveau_mm_put(vm->mm, vma->node); nouveau_mm_put(vm->mm, vma->node);
mutex_unlock(&vm->mm->mutex); mutex_unlock(&vm->mm->mutex);
vma->node = NULL; vma->node = NULL;
...@@ -263,21 +267,20 @@ nouveau_vm_put(struct nouveau_vma *vma) ...@@ -263,21 +267,20 @@ nouveau_vm_put(struct nouveau_vma *vma)
lpde = (vma->node->offset + vma->node->length - 1) >> vm->pgt_bits; lpde = (vma->node->offset + vma->node->length - 1) >> vm->pgt_bits;
mutex_lock(&vm->mm->mutex); mutex_lock(&vm->mm->mutex);
nouveau_vm_unmap_pgt(vm, vma->node->type != vm->spg_shift, fpde, lpde);
nouveau_mm_put(vm->mm, vma->node); nouveau_mm_put(vm->mm, vma->node);
vma->node = NULL; vma->node = NULL;
nouveau_vm_unmap_pgt(vm, fpde, lpde);
mutex_unlock(&vm->mm->mutex); mutex_unlock(&vm->mm->mutex);
} }
int int
nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset, nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset,
u8 pgt_bits, u8 spg_shift, u8 lpg_shift,
struct nouveau_vm **pvm) struct nouveau_vm **pvm)
{ {
struct drm_nouveau_private *dev_priv = dev->dev_private; struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_vm *vm; struct nouveau_vm *vm;
u64 mm_length = (offset + length) - mm_offset; u64 mm_length = (offset + length) - mm_offset;
u32 block; u32 block, pgt_bits;
int ret; int ret;
vm = kzalloc(sizeof(*vm), GFP_KERNEL); vm = kzalloc(sizeof(*vm), GFP_KERNEL);
...@@ -286,11 +289,13 @@ nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset, ...@@ -286,11 +289,13 @@ nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset,
if (dev_priv->card_type == NV_50) { if (dev_priv->card_type == NV_50) {
vm->map_pgt = nv50_vm_map_pgt; vm->map_pgt = nv50_vm_map_pgt;
vm->unmap_pgt = nv50_vm_unmap_pgt;
vm->map = nv50_vm_map; vm->map = nv50_vm_map;
vm->map_sg = nv50_vm_map_sg; vm->map_sg = nv50_vm_map_sg;
vm->unmap = nv50_vm_unmap; vm->unmap = nv50_vm_unmap;
vm->flush = nv50_vm_flush; vm->flush = nv50_vm_flush;
vm->spg_shift = 12;
vm->lpg_shift = 16;
pgt_bits = 29;
} else { } else {
kfree(vm); kfree(vm);
return -ENOSYS; return -ENOSYS;
...@@ -308,8 +313,6 @@ nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset, ...@@ -308,8 +313,6 @@ nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset,
vm->dev = dev; vm->dev = dev;
vm->refcount = 1; vm->refcount = 1;
vm->pgt_bits = pgt_bits - 12; vm->pgt_bits = pgt_bits - 12;
vm->spg_shift = spg_shift;
vm->lpg_shift = lpg_shift;
block = (1 << pgt_bits); block = (1 << pgt_bits);
if (length < block) if (length < block)
...@@ -342,16 +345,8 @@ nouveau_vm_link(struct nouveau_vm *vm, struct nouveau_gpuobj *pgd) ...@@ -342,16 +345,8 @@ nouveau_vm_link(struct nouveau_vm *vm, struct nouveau_gpuobj *pgd)
nouveau_gpuobj_ref(pgd, &vpgd->obj); nouveau_gpuobj_ref(pgd, &vpgd->obj);
mutex_lock(&vm->mm->mutex); mutex_lock(&vm->mm->mutex);
for (i = vm->fpde; i <= vm->lpde; i++) { for (i = vm->fpde; i <= vm->lpde; i++)
struct nouveau_vm_pgt *vpgt = &vm->pgt[i - vm->fpde]; vm->map_pgt(pgd, i, vm->pgt[i - vm->fpde].obj);
if (!vpgt->obj) {
vm->unmap_pgt(pgd, i);
continue;
}
vm->map_pgt(pgd, vpgt->page_shift, i, vpgt->obj);
}
list_add(&vpgd->head, &vm->pgd_list); list_add(&vpgd->head, &vm->pgd_list);
mutex_unlock(&vm->mm->mutex); mutex_unlock(&vm->mm->mutex);
return 0; return 0;
......
drivers/gpu/drm/nouveau/nouveau_vm.h
View file @ 3ee01281
...@@ -31,9 +31,8 @@ ...@@ -31,9 +31,8 @@
#include "nouveau_mm.h" #include "nouveau_mm.h"
struct nouveau_vm_pgt { struct nouveau_vm_pgt {
struct nouveau_gpuobj *obj; struct nouveau_gpuobj *obj[2];
u32 page_shift; u32 refcount[2];
u32 refcount;
}; };
struct nouveau_vm_pgd { struct nouveau_vm_pgd {
...@@ -65,9 +64,8 @@ struct nouveau_vm { ...@@ -65,9 +64,8 @@ struct nouveau_vm {
u8 spg_shift; u8 spg_shift;
u8 lpg_shift; u8 lpg_shift;
void (*map_pgt)(struct nouveau_gpuobj *pgd, u32 type, u32 pde, void (*map_pgt)(struct nouveau_gpuobj *pgd, u32 pde,
struct nouveau_gpuobj *pgt); struct nouveau_gpuobj *pgt[2]);
void (*unmap_pgt)(struct nouveau_gpuobj *pgd, u32 pde);
void (*map)(struct nouveau_vma *, struct nouveau_gpuobj *, void (*map)(struct nouveau_vma *, struct nouveau_gpuobj *,
struct nouveau_vram *, u32 pte, u32 cnt, u64 phys); struct nouveau_vram *, u32 pte, u32 cnt, u64 phys);
void (*map_sg)(struct nouveau_vma *, struct nouveau_gpuobj *, void (*map_sg)(struct nouveau_vma *, struct nouveau_gpuobj *,
...@@ -78,7 +76,6 @@ struct nouveau_vm { ...@@ -78,7 +76,6 @@ struct nouveau_vm {
/* nouveau_vm.c */ /* nouveau_vm.c */
int nouveau_vm_new(struct drm_device *, u64 offset, u64 length, u64 mm_offset, int nouveau_vm_new(struct drm_device *, u64 offset, u64 length, u64 mm_offset,
u8 pgt_bits, u8 spg_shift, u8 lpg_shift,
struct nouveau_vm **); struct nouveau_vm **);
int nouveau_vm_ref(struct nouveau_vm *, struct nouveau_vm **, int nouveau_vm_ref(struct nouveau_vm *, struct nouveau_vm **,
struct nouveau_gpuobj *pgd); struct nouveau_gpuobj *pgd);
...@@ -93,9 +90,8 @@ void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length, ...@@ -93,9 +90,8 @@ void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length,
dma_addr_t *); dma_addr_t *);
/* nv50_vm.c */ /* nv50_vm.c */
void nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 type, u32 pde, void nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 pde,
struct nouveau_gpuobj *pgt); struct nouveau_gpuobj *pgt[2]);
void nv50_vm_unmap_pgt(struct nouveau_gpuobj *pgd, u32 pde);
void nv50_vm_map(struct nouveau_vma *, struct nouveau_gpuobj *, void nv50_vm_map(struct nouveau_vma *, struct nouveau_gpuobj *,
struct nouveau_vram *, u32 pte, u32 cnt, u64 phys); struct nouveau_vram *, u32 pte, u32 cnt, u64 phys);
void nv50_vm_map_sg(struct nouveau_vma *, struct nouveau_gpuobj *, void nv50_vm_map_sg(struct nouveau_vma *, struct nouveau_gpuobj *,
......
drivers/gpu/drm/nouveau/nv50_instmem.c
View file @ 3ee01281
...@@ -151,20 +151,19 @@ nv50_instmem_init(struct drm_device *dev) ...@@ -151,20 +151,19 @@ nv50_instmem_init(struct drm_device *dev)
/* BAR3 */ /* BAR3 */
ret = nouveau_vm_new(dev, BAR3_VM_BASE, BAR3_VM_SIZE, BAR3_VM_BASE, ret = nouveau_vm_new(dev, BAR3_VM_BASE, BAR3_VM_SIZE, BAR3_VM_BASE,
29, 12, 16, &dev_priv->bar3_vm); &dev_priv->bar3_vm);
if (ret) if (ret)
goto error; goto error;
ret = nouveau_gpuobj_new(dev, NULL, (BAR3_VM_SIZE >> 12) * 8, ret = nouveau_gpuobj_new(dev, NULL, (BAR3_VM_SIZE >> 12) * 8,
0x1000, NVOBJ_FLAG_DONT_MAP | 0x1000, NVOBJ_FLAG_DONT_MAP |
NVOBJ_FLAG_ZERO_ALLOC, NVOBJ_FLAG_ZERO_ALLOC,
&dev_priv->bar3_vm->pgt[0].obj); &dev_priv->bar3_vm->pgt[0].obj[0]);
if (ret) if (ret)
goto error; goto error;
dev_priv->bar3_vm->pgt[0].page_shift = 12; dev_priv->bar3_vm->pgt[0].refcount[0] = 1;
dev_priv->bar3_vm->pgt[0].refcount = 1;
nv50_instmem_map(dev_priv->bar3_vm->pgt[0].obj); nv50_instmem_map(dev_priv->bar3_vm->pgt[0].obj[0]);
ret = nv50_channel_new(dev, 128 * 1024, dev_priv->bar3_vm, &chan); ret = nv50_channel_new(dev, 128 * 1024, dev_priv->bar3_vm, &chan);
if (ret) if (ret)
...@@ -195,8 +194,7 @@ nv50_instmem_init(struct drm_device *dev) ...@@ -195,8 +194,7 @@ nv50_instmem_init(struct drm_device *dev)
nv_wo32(chan->ramin, 0, tmp); nv_wo32(chan->ramin, 0, tmp);
/* BAR1 */ /* BAR1 */
ret = nouveau_vm_new(dev, BAR1_VM_BASE, BAR1_VM_SIZE, BAR1_VM_BASE, ret = nouveau_vm_new(dev, BAR1_VM_BASE, BAR1_VM_SIZE, BAR1_VM_BASE, &vm);
29, 12, 16, &vm);
if (ret) if (ret)
goto error; goto error;
...@@ -220,7 +218,7 @@ nv50_instmem_init(struct drm_device *dev) ...@@ -220,7 +218,7 @@ nv50_instmem_init(struct drm_device *dev)
* to catch "NULL pointer" references * to catch "NULL pointer" references
*/ */
ret = nouveau_vm_new(dev, 0, (1ULL << 40), 0x0020000000ULL, ret = nouveau_vm_new(dev, 0, (1ULL << 40), 0x0020000000ULL,
29, 12, 16, &dev_priv->chan_vm); &dev_priv->chan_vm);
if (ret) if (ret)
return ret; return ret;
...@@ -258,7 +256,7 @@ nv50_instmem_takedown(struct drm_device *dev) ...@@ -258,7 +256,7 @@ nv50_instmem_takedown(struct drm_device *dev)
dev_priv->channels.ptr[127] = 0; dev_priv->channels.ptr[127] = 0;
nv50_channel_del(&dev_priv->channels.ptr[0]); nv50_channel_del(&dev_priv->channels.ptr[0]);
nouveau_gpuobj_ref(NULL, &dev_priv->bar3_vm->pgt[0].obj); nouveau_gpuobj_ref(NULL, &dev_priv->bar3_vm->pgt[0].obj[0]);
nouveau_vm_ref(NULL, &dev_priv->bar3_vm, NULL); nouveau_vm_ref(NULL, &dev_priv->bar3_vm, NULL);
if (dev_priv->ramin_heap.free_stack.next) if (dev_priv->ramin_heap.free_stack.next)
......
drivers/gpu/drm/nouveau/nv50_vm.c
View file @ 3ee01281
...@@ -28,16 +28,23 @@ ...@@ -28,16 +28,23 @@
#include "nouveau_vm.h" #include "nouveau_vm.h"
void void
nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 type, u32 pde, nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 pde,
struct nouveau_gpuobj *pgt) struct nouveau_gpuobj *pgt[2])
{ {
struct drm_nouveau_private *dev_priv = pgd->dev->dev_private; struct drm_nouveau_private *dev_priv = pgd->dev->dev_private;
u32 coverage = (pgt->size >> 3) << type; u64 phys = 0xdeadcafe00000000ULL;
u64 phys; u32 coverage = 0;
if (pgt[0]) {
phys = 0x00000003 | pgt[0]->vinst; /* present, 4KiB pages */
coverage = (pgt[0]->size >> 3) << 12;
} else
if (pgt[1]) {
phys = 0x00000001 | pgt[1]->vinst; /* present */
coverage = (pgt[1]->size >> 3) << 16;
}
phys = pgt->vinst; if (phys & 1) {
phys |= 0x01; /* present */
phys |= (type == 12) ? 0x02 : 0x00; /* 4KiB pages */
if (dev_priv->vram_sys_base) { if (dev_priv->vram_sys_base) {
phys += dev_priv->vram_sys_base; phys += dev_priv->vram_sys_base;
phys |= 0x30; phys |= 0x30;
...@@ -49,18 +56,12 @@ nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 type, u32 pde, ...@@ -49,18 +56,12 @@ nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 type, u32 pde,
phys |= 0x40; phys |= 0x40;
else if (coverage < 128 * 1024 * 1024) else if (coverage < 128 * 1024 * 1024)
phys |= 0x20; phys |= 0x20;
}
nv_wo32(pgd, (pde * 8) + 0, lower_32_bits(phys)); nv_wo32(pgd, (pde * 8) + 0, lower_32_bits(phys));
nv_wo32(pgd, (pde * 8) + 4, upper_32_bits(phys)); nv_wo32(pgd, (pde * 8) + 4, upper_32_bits(phys));
} }
void
nv50_vm_unmap_pgt(struct nouveau_gpuobj *pgd, u32 pde)
{
nv_wo32(pgd, (pde * 8) + 0, 0x00000000);
nv_wo32(pgd, (pde * 8) + 4, 0xdeadcafe);
}
static inline u64 static inline u64
nv50_vm_addr(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt, nv50_vm_addr(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
u64 phys, u32 memtype, u32 target) u64 phys, u32 memtype, u32 target)
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7