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drm/nouveau/mmu/nv50,g84: implement new vmm backend

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2017-11-01 03:56:19 +10:00
parent 6ce513529a
commit fd542a3e52
6 changed files with 360 additions and 194 deletions
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13
drivers/gpu/drm/nouveau/include/nvif/if500d.h
View File

@ -5,4 +5,17 @@
struct nv50_vmm_vn { struct nv50_vmm_vn {
/* nvif_vmm_vX ... */ /* nvif_vmm_vX ... */
}; };
struct nv50_vmm_map_vn {
/* nvif_vmm_map_vX ... */
};
struct nv50_vmm_map_v0 {
/* nvif_vmm_map_vX ... */
__u8 version;
__u8 ro;
__u8 priv;
__u8 kind;
__u8 comp;
};
#endif #endif

19
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
View File

@ -27,6 +27,8 @@
#include <core/gpuobj.h> #include <core/gpuobj.h>
#include <subdev/fb.h> #include <subdev/fb.h>
#include <nvif/if500d.h>
struct nvkm_mmu_ptp { struct nvkm_mmu_ptp {
struct nvkm_mmu_pt *pt; struct nvkm_mmu_pt *pt;
struct list_head head; struct list_head head;
@ -218,6 +220,9 @@ nvkm_vm_map_(const struct nvkm_vmm_page *page, struct nvkm_vma *vma, u64 delta,
struct nvkm_mem *mem, nvkm_vmm_pte_func fn, struct nvkm_mem *mem, nvkm_vmm_pte_func fn,
struct nvkm_vmm_map *map) struct nvkm_vmm_map *map)
{ {
union {
struct nv50_vmm_map_v0 nv50;
} args;
struct nvkm_vmm *vmm = vma->vm; struct nvkm_vmm *vmm = vma->vm;
void *argv = NULL; void *argv = NULL;
u32 argc = 0; u32 argc = 0;
@ -227,6 +232,20 @@ nvkm_vm_map_(const struct nvkm_vmm_page *page, struct nvkm_vma *vma, u64 delta,
map->page = page; map->page = page;
if (vmm->func->valid) { if (vmm->func->valid) {
switch (vmm->mmu->subdev.device->card_type) {
case NV_50:
args.nv50.version = 0;
args.nv50.ro = !(vma->access & NV_MEM_ACCESS_WO);
args.nv50.priv = !!(vma->access & NV_MEM_ACCESS_SYS);
args.nv50.kind = (mem->memtype & 0x07f);
args.nv50.comp = (mem->memtype & 0x180) >> 7;
argv = &args.nv50;
argc = sizeof(args.nv50);
break;
default:
break;
}
ret = vmm->func->valid(vmm, argv, argc, map); ret = vmm->func->valid(vmm, argv, argc, map);
if (WARN_ON(ret)) if (WARN_ON(ret))
return; return;

6
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/g84.c
View File

@ -30,12 +30,8 @@ g84_mmu = {
.pgt_bits = 29 - 12, .pgt_bits = 29 - 12,
.spg_shift = 12, .spg_shift = 12,
.lpg_shift = 16, .lpg_shift = 16,
.map_pgt = nv50_vm_map_pgt,
.map = nv50_vm_map,
.map_sg = nv50_vm_map_sg,
.unmap = nv50_vm_unmap,
.flush = nv50_vm_flush,
.vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x0200 }, .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x0200 },
.kind = nv50_mmu_kind,
}; };
int int

213
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c
View File

@ -23,185 +23,40 @@
*/ */
#include "vmm.h" #include "vmm.h"
#include <core/gpuobj.h>
#include <subdev/fb.h>
#include <subdev/timer.h>
#include <engine/gr.h>
#include <nvif/class.h> #include <nvif/class.h>
void const u8 *
nv50_vm_map_pgt(struct nvkm_vmm *vmm, u32 pde, struct nvkm_memory *pgt[2]) nv50_mmu_kind(struct nvkm_mmu *base, int *count)
{ {
struct nvkm_vmm_join *join; /* 0x01: no bank swizzle
u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pde * 8); * 0x02: bank swizzled
u64 phys = 0xdeadcafe00000000ULL; * 0x7f: invalid
u32 coverage = 0; *
* 0x01/0x02 are values understood by the VRAM allocator,
if (pgt[0]) { * and are required to avoid mixing the two types within
/* present, 4KiB pages */ * a certain range.
phys = 0x00000003 | nvkm_memory_addr(pgt[0]); */
coverage = (nvkm_memory_size(pgt[0]) >> 3) << 12; static const u8
} else kind[128] = {
if (pgt[1]) { 0x01, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x00 */
/* present, 64KiB pages */ 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
phys = 0x00000001 | nvkm_memory_addr(pgt[1]); 0x01, 0x01, 0x01, 0x01, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x10 */
coverage = (nvkm_memory_size(pgt[1]) >> 3) << 16; 0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f, 0x7f, 0x7f,
} 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x20 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f,
if (phys & 1) { 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x30 */
if (coverage <= 32 * 1024 * 1024) 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
phys |= 0x60; 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, /* 0x40 */
else if (coverage <= 64 * 1024 * 1024) 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f,
phys |= 0x40; 0x7f, 0x7f, 0x7f, 0x7f, 0x01, 0x01, 0x01, 0x7f, /* 0x50 */
else if (coverage <= 128 * 1024 * 1024) 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
phys |= 0x20; 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x60 */
} 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
0x01, 0x7f, 0x02, 0x7f, 0x01, 0x7f, 0x02, 0x7f, /* 0x70 */
list_for_each_entry(join, &vmm->join, head) { 0x01, 0x01, 0x02, 0x02, 0x01, 0x01, 0x7f, 0x7f
nvkm_kmap(join->inst); };
nvkm_wo32(join->inst, pdeo + 0, lower_32_bits(phys)); *count = ARRAY_SIZE(kind);
nvkm_wo32(join->inst, pdeo + 4, upper_32_bits(phys)); return kind;
nvkm_done(join->inst);
}
}
static inline u64
vm_addr(struct nvkm_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;
}
void
nv50_vm_map(struct nvkm_vma *vma, struct nvkm_memory *pgt,
struct nvkm_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta)
{
struct nvkm_ram *ram = vma->vm->mmu->subdev.device->fb->ram;
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 (ram->stolen) {
phys += ram->stolen;
target = 3;
}
phys = vm_addr(vma, phys, mem->memtype, target);
pte <<= 3;
cnt <<= 3;
nvkm_kmap(pgt);
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) {
nvkm_wo32(pgt, pte + 0, offset_l);
nvkm_wo32(pgt, pte + 4, offset_h);
pte += 8;
block -= 8;
}
}
nvkm_done(pgt);
}
void
nv50_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt,
struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
{
u32 target = (vma->access & NV_MEM_ACCESS_NOSNOOP) ? 3 : 2;
pte <<= 3;
nvkm_kmap(pgt);
while (cnt--) {
u64 phys = vm_addr(vma, (u64)*list++, mem->memtype, target);
nvkm_wo32(pgt, pte + 0, lower_32_bits(phys));
nvkm_wo32(pgt, pte + 4, upper_32_bits(phys));
pte += 8;
}
nvkm_done(pgt);
}
void
nv50_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt)
{
pte <<= 3;
nvkm_kmap(pgt);
while (cnt--) {
nvkm_wo32(pgt, pte + 0, 0x00000000);
nvkm_wo32(pgt, pte + 4, 0x00000000);
pte += 8;
}
nvkm_done(pgt);
}
void
nv50_vm_flush(struct nvkm_vm *vm)
{
struct nvkm_mmu *mmu = vm->mmu;
struct nvkm_subdev *subdev = &mmu->subdev;
struct nvkm_device *device = subdev->device;
int i, vme;
mutex_lock(&subdev->mutex);
for (i = 0; i < NVKM_SUBDEV_NR; i++) {
if (!atomic_read(&vm->engref[i]))
continue;
/* unfortunate hw bug workaround... */
if (i == NVKM_ENGINE_GR && device->gr) {
int ret = nvkm_gr_tlb_flush(device->gr);
if (ret != -ENODEV)
continue;
}
switch (i) {
case NVKM_ENGINE_GR : vme = 0x00; break;
case NVKM_ENGINE_VP :
case NVKM_ENGINE_MSPDEC: vme = 0x01; break;
case NVKM_SUBDEV_BAR : vme = 0x06; break;
case NVKM_ENGINE_MSPPP :
case NVKM_ENGINE_MPEG : vme = 0x08; break;
case NVKM_ENGINE_BSP :
case NVKM_ENGINE_MSVLD : vme = 0x09; break;
case NVKM_ENGINE_CIPHER:
case NVKM_ENGINE_SEC : vme = 0x0a; break;
case NVKM_ENGINE_CE0 : vme = 0x0d; break;
default:
continue;
}
nvkm_wr32(device, 0x100c80, (vme << 16) | 1);
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
break;
) < 0)
nvkm_error(subdev, "vm flush timeout: engine %d\n", vme);
}
mutex_unlock(&subdev->mutex);
} }
static const struct nvkm_mmu_func static const struct nvkm_mmu_func
@ -211,12 +66,8 @@ nv50_mmu = {
.pgt_bits = 29 - 12, .pgt_bits = 29 - 12,
.spg_shift = 12, .spg_shift = 12,
.lpg_shift = 16, .lpg_shift = 16,
.map_pgt = nv50_vm_map_pgt,
.map = nv50_vm_map,
.map_sg = nv50_vm_map_sg,
.unmap = nv50_vm_unmap,
.flush = nv50_vm_flush,
.vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x1400 }, .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x1400 },
.kind = nv50_mmu_kind,
}; };
int int

10
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
View File

@ -37,17 +37,13 @@ struct nvkm_mmu_func {
bool global; bool global;
u32 pd_offset; u32 pd_offset;
} vmm; } vmm;
const u8 *(*kind)(struct nvkm_mmu *, int *count);
}; };
extern const struct nvkm_mmu_func nv04_mmu; extern const struct nvkm_mmu_func nv04_mmu;
void nv50_vm_map_pgt(struct nvkm_vmm *, u32, struct nvkm_memory **); const u8 *nv50_mmu_kind(struct nvkm_mmu *, int *count);
void nv50_vm_map(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *,
u32, u32, u64, u64);
void nv50_vm_map_sg(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *,
u32, u32, dma_addr_t *);
void nv50_vm_unmap(struct nvkm_vma *, struct nvkm_memory *, u32, u32);
void nv50_vm_flush(struct nvkm_vm *);
void gf100_vm_map_pgt(struct nvkm_vmm *, u32, struct nvkm_memory **); void gf100_vm_map_pgt(struct nvkm_vmm *, u32, struct nvkm_memory **);
void gf100_vm_map(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *, void gf100_vm_map(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *,

293
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c
View File

@ -21,15 +21,146 @@
*/ */
#include "vmm.h" #include "vmm.h"
#include <subdev/fb.h>
#include <subdev/timer.h>
#include <engine/gr.h>
#include <nvif/if500d.h> #include <nvif/if500d.h>
#include <nvif/unpack.h> #include <nvif/unpack.h>
static inline void
nv50_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr)
{
u64 next = addr | map->type, data;
u32 pten;
int log2blk;
map->type += ptes * map->ctag;
while (ptes) {
for (log2blk = 7; log2blk >= 0; log2blk--) {
pten = 1 << log2blk;
if (ptes >= pten && IS_ALIGNED(ptei, pten))
break;
}
data = next | (log2blk << 7);
next += pten * map->next;
ptes -= pten;
while (pten--)
VMM_WO064(pt, vmm, ptei++ * 8, data);
}
}
static void
nv50_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
{
VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
}
static void
nv50_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
{
if (map->page->shift == PAGE_SHIFT) {
VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes);
nvkm_kmap(pt->memory);
while (ptes--) {
const u64 data = *map->dma++ | map->type;
VMM_WO064(pt, vmm, ptei++ * 8, data);
map->type += map->ctag;
}
nvkm_done(pt->memory);
return;
}
VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
}
static void
nv50_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
{
VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
}
static void
nv50_vmm_pgt_unmap(struct nvkm_vmm *vmm,
struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
{
VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes);
}
static const struct nvkm_vmm_desc_func static const struct nvkm_vmm_desc_func
nv50_vmm_pgt = { nv50_vmm_pgt = {
.unmap = nv50_vmm_pgt_unmap,
.mem = nv50_vmm_pgt_mem,
.dma = nv50_vmm_pgt_dma,
.sgl = nv50_vmm_pgt_sgl,
}; };
static bool
nv50_vmm_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgt, u64 *pdata)
{
struct nvkm_mmu_pt *pt;
u64 data = 0xdeadcafe00000000ULL;
if (pgt && (pt = pgt->pt[0])) {
switch (pgt->page) {
case 16: data = 0x00000001; break;
case 12: data = 0x00000003;
switch (nvkm_memory_size(pt->memory)) {
case 0x100000: data |= 0x00000000; break;
case 0x040000: data |= 0x00000020; break;
case 0x020000: data |= 0x00000040; break;
case 0x010000: data |= 0x00000060; break;
default:
WARN_ON(1);
return false;
}
break;
default:
WARN_ON(1);
return false;
}
switch (nvkm_memory_target(pt->memory)) {
case NVKM_MEM_TARGET_VRAM: data |= 0x00000000; break;
case NVKM_MEM_TARGET_HOST: data |= 0x00000008; break;
case NVKM_MEM_TARGET_NCOH: data |= 0x0000000c; break;
default:
WARN_ON(1);
return false;
}
data |= pt->addr;
}
*pdata = data;
return true;
}
static void
nv50_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei)
{
struct nvkm_vmm_join *join;
u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pdei * 8);
u64 data;
if (!nv50_vmm_pde(vmm, pgd->pde[pdei], &data))
return;
list_for_each_entry(join, &vmm->join, head) {
nvkm_kmap(join->inst);
nvkm_wo64(join->inst, pdeo, data);
nvkm_done(join->inst);
}
}
static const struct nvkm_vmm_desc_func static const struct nvkm_vmm_desc_func
nv50_vmm_pgd = { nv50_vmm_pgd = {
.pde = nv50_vmm_pgd_pde,
}; };
static const struct nvkm_vmm_desc static const struct nvkm_vmm_desc
@ -46,6 +177,150 @@ nv50_vmm_desc_16[] = {
{} {}
}; };
static void
nv50_vmm_flush(struct nvkm_vmm *vmm, int level)
{
struct nvkm_subdev *subdev = &vmm->mmu->subdev;
struct nvkm_device *device = subdev->device;
int i, id;
mutex_lock(&subdev->mutex);
for (i = 0; i < NVKM_SUBDEV_NR; i++) {
if (!atomic_read(&vmm->engref[i]))
continue;
/* unfortunate hw bug workaround... */
if (i == NVKM_ENGINE_GR && device->gr) {
int ret = nvkm_gr_tlb_flush(device->gr);
if (ret != -ENODEV)
continue;
}
switch (i) {
case NVKM_ENGINE_GR : id = 0x00; break;
case NVKM_ENGINE_VP :
case NVKM_ENGINE_MSPDEC: id = 0x01; break;
case NVKM_SUBDEV_BAR : id = 0x06; break;
case NVKM_ENGINE_MSPPP :
case NVKM_ENGINE_MPEG : id = 0x08; break;
case NVKM_ENGINE_BSP :
case NVKM_ENGINE_MSVLD : id = 0x09; break;
case NVKM_ENGINE_CIPHER:
case NVKM_ENGINE_SEC : id = 0x0a; break;
case NVKM_ENGINE_CE0 : id = 0x0d; break;
default:
continue;
}
nvkm_wr32(device, 0x100c80, (id << 16) | 1);
if (nvkm_msec(device, 2000,
if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
break;
) < 0)
nvkm_error(subdev, "%s mmu invalidate timeout\n",
nvkm_subdev_name[i]);
}
mutex_unlock(&subdev->mutex);
}
static int
nv50_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc,
struct nvkm_vmm_map *map)
{
const struct nvkm_vmm_page *page = map->page;
union {
struct nv50_vmm_map_vn vn;
struct nv50_vmm_map_v0 v0;
} *args = argv;
struct nvkm_device *device = vmm->mmu->subdev.device;
struct nvkm_ram *ram = device->fb->ram;
struct nvkm_memory *memory = map->memory;
u8 aper, kind, comp, priv, ro;
int kindn, ret = -ENOSYS;
const u8 *kindm;
map->type = map->ctag = 0;
map->next = 1 << page->shift;
if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
ro = !!args->v0.ro;
priv = !!args->v0.priv;
kind = args->v0.kind & 0x7f;
comp = args->v0.comp & 0x03;
} else
if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
ro = 0;
priv = 0;
kind = 0x00;
comp = 0;
} else {
VMM_DEBUG(vmm, "args");
return ret;
}
switch (nvkm_memory_target(memory)) {
case NVKM_MEM_TARGET_VRAM:
if (ram->stolen) {
map->type |= ram->stolen;
aper = 3;
} else {
aper = 0;
}
break;
case NVKM_MEM_TARGET_HOST:
aper = 2;
break;
case NVKM_MEM_TARGET_NCOH:
aper = 3;
break;
default:
WARN_ON(1);
return -EINVAL;
}
kindm = vmm->mmu->func->kind(vmm->mmu, &kindn);
if (kind >= kindn || kindm[kind] == 0x7f) {
VMM_DEBUG(vmm, "kind %02x", kind);
return -EINVAL;
}
if (map->mem && map->mem->type != kindm[kind]) {
VMM_DEBUG(vmm, "kind %02x bankswz: %d %d", kind,
kindm[kind], map->mem->type);
return -EINVAL;
}
if (comp) {
u32 tags = (nvkm_memory_size(memory) >> 16) * comp;
if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) {
VMM_DEBUG(vmm, "comp %d %02x", aper, page->type);
return -EINVAL;
}
ret = nvkm_memory_tags_get(memory, device, tags, NULL,
&map->tags);
if (ret) {
VMM_DEBUG(vmm, "comp %d", ret);
return ret;
}
if (map->tags->mn) {
u32 tags = map->tags->mn->offset + (map->offset >> 16);
map->ctag |= (u64)comp << 49;
map->type |= (u64)comp << 47;
map->type |= (u64)tags << 49;
map->next |= map->ctag;
}
}
map->type |= BIT(0); /* Valid. */
map->type |= (u64)ro << 3;
map->type |= (u64)aper << 4;
map->type |= (u64)priv << 6;
map->type |= (u64)kind << 40;
return 0;
}
static void static void
nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst) nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
{ {
@ -63,19 +338,35 @@ nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
static int static int
nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
{ {
const u32 pd_offset = vmm->mmu->func->vmm.pd_offset;
struct nvkm_vmm_join *join; struct nvkm_vmm_join *join;
int ret = 0;
u64 data;
u32 pdei;
if (!(join = kmalloc(sizeof(*join), GFP_KERNEL))) if (!(join = kmalloc(sizeof(*join), GFP_KERNEL)))
return -ENOMEM; return -ENOMEM;
join->inst = inst; join->inst = inst;
list_add_tail(&join->head, &vmm->join); list_add_tail(&join->head, &vmm->join);
return 0;
nvkm_kmap(join->inst);
for (pdei = vmm->start >> 29; pdei <= (vmm->limit - 1) >> 29; pdei++) {
if (!nv50_vmm_pde(vmm, vmm->pd->pde[pdei], &data)) {
ret = -EINVAL;
break;
}
nvkm_wo64(join->inst, pd_offset + (pdei * 8), data);
}
nvkm_done(join->inst);
return ret;
} }
static const struct nvkm_vmm_func static const struct nvkm_vmm_func
nv50_vmm = { nv50_vmm = {
.join = nv50_vmm_join, .join = nv50_vmm_join,
.part = nv50_vmm_part, .part = nv50_vmm_part,
.valid = nv50_vmm_valid,
.flush = nv50_vmm_flush,
.page_block = 1 << 29, .page_block = 1 << 29,
.page = { .page = {
{ 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC }, { 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC },