blob: 2d89e27e8e9e5eb60e7164957dc1e36c27b4fc3d [file] [log] [blame]
/*
* Copyright 2017 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.
*/
#include "vmm.h"
#include <subdev/fb.h>
#include <subdev/timer.h>
#include <engine/gr.h>
#include <nvif/if500d.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
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
nv50_vmm_pgd = {
.pde = nv50_vmm_pgd_pde,
};
const struct nvkm_vmm_desc
nv50_vmm_desc_12[] = {
{ PGT, 17, 8, 0x1000, &nv50_vmm_pgt },
{ PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
{}
};
const struct nvkm_vmm_desc
nv50_vmm_desc_16[] = {
{ PGT, 13, 8, 0x1000, &nv50_vmm_pgt },
{ PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
{}
};
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);
}
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, kind_inv, 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, &kind_inv);
if (kind >= kindn || kindm[kind] == kind_inv) {
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;
}
void
nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
{
struct nvkm_vmm_join *join;
list_for_each_entry(join, &vmm->join, head) {
if (join->inst == inst) {
list_del(&join->head);
kfree(join);
break;
}
}
}
int
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;
int ret = 0;
u64 data;
u32 pdei;
if (!(join = kmalloc(sizeof(*join), GFP_KERNEL)))
return -ENOMEM;
join->inst = inst;
list_add_tail(&join->head, &vmm->join);
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
nv50_vmm = {
.join = nv50_vmm_join,
.part = nv50_vmm_part,
.valid = nv50_vmm_valid,
.flush = nv50_vmm_flush,
.page_block = 1 << 29,
.page = {
{ 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC },
{ 12, &nv50_vmm_desc_12[0], NVKM_VMM_PAGE_xVHx },
{}
}
};
int
nv50_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
void *argv, u32 argc, struct lock_class_key *key, const char *name,
struct nvkm_vmm **pvmm)
{
return nv04_vmm_new_(&nv50_vmm, mmu, 0, managed, addr, size,
argv, argc, key, name, pvmm);
}