142 lines
3.4 KiB
C
142 lines
3.4 KiB
C
/*
|
|
* 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 "nouveau_vmm.h"
|
|
#include "nouveau_drv.h"
|
|
#include "nouveau_bo.h"
|
|
#include "nouveau_svm.h"
|
|
#include "nouveau_mem.h"
|
|
|
|
void
|
|
nouveau_vma_unmap(struct nouveau_vma *vma)
|
|
{
|
|
if (vma->mem) {
|
|
nvif_vmm_unmap(&vma->vmm->vmm, vma->addr);
|
|
vma->mem = NULL;
|
|
}
|
|
}
|
|
|
|
int
|
|
nouveau_vma_map(struct nouveau_vma *vma, struct nouveau_mem *mem)
|
|
{
|
|
struct nvif_vma tmp = { .addr = vma->addr };
|
|
int ret = nouveau_mem_map(mem, &vma->vmm->vmm, &tmp);
|
|
if (ret)
|
|
return ret;
|
|
vma->mem = mem;
|
|
return 0;
|
|
}
|
|
|
|
struct nouveau_vma *
|
|
nouveau_vma_find(struct nouveau_bo *nvbo, struct nouveau_vmm *vmm)
|
|
{
|
|
struct nouveau_vma *vma;
|
|
|
|
list_for_each_entry(vma, &nvbo->vma_list, head) {
|
|
if (vma->vmm == vmm)
|
|
return vma;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
nouveau_vma_del(struct nouveau_vma **pvma)
|
|
{
|
|
struct nouveau_vma *vma = *pvma;
|
|
if (vma && --vma->refs <= 0) {
|
|
if (likely(vma->addr != ~0ULL)) {
|
|
struct nvif_vma tmp = { .addr = vma->addr, .size = 1 };
|
|
nvif_vmm_put(&vma->vmm->vmm, &tmp);
|
|
}
|
|
list_del(&vma->head);
|
|
kfree(*pvma);
|
|
}
|
|
*pvma = NULL;
|
|
}
|
|
|
|
int
|
|
nouveau_vma_new(struct nouveau_bo *nvbo, struct nouveau_vmm *vmm,
|
|
struct nouveau_vma **pvma)
|
|
{
|
|
struct nouveau_mem *mem = nouveau_mem(nvbo->bo.resource);
|
|
struct nouveau_vma *vma;
|
|
struct nvif_vma tmp;
|
|
int ret;
|
|
|
|
if ((vma = *pvma = nouveau_vma_find(nvbo, vmm))) {
|
|
vma->refs++;
|
|
return 0;
|
|
}
|
|
|
|
if (!(vma = *pvma = kmalloc(sizeof(*vma), GFP_KERNEL)))
|
|
return -ENOMEM;
|
|
vma->vmm = vmm;
|
|
vma->refs = 1;
|
|
vma->addr = ~0ULL;
|
|
vma->mem = NULL;
|
|
vma->fence = NULL;
|
|
list_add_tail(&vma->head, &nvbo->vma_list);
|
|
|
|
if (nvbo->bo.resource->mem_type != TTM_PL_SYSTEM &&
|
|
mem->mem.page == nvbo->page) {
|
|
ret = nvif_vmm_get(&vmm->vmm, LAZY, false, mem->mem.page, 0,
|
|
mem->mem.size, &tmp);
|
|
if (ret)
|
|
goto done;
|
|
|
|
vma->addr = tmp.addr;
|
|
ret = nouveau_vma_map(vma, mem);
|
|
} else {
|
|
ret = nvif_vmm_get(&vmm->vmm, PTES, false, mem->mem.page, 0,
|
|
mem->mem.size, &tmp);
|
|
if (ret)
|
|
goto done;
|
|
|
|
vma->addr = tmp.addr;
|
|
}
|
|
|
|
done:
|
|
if (ret)
|
|
nouveau_vma_del(pvma);
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
nouveau_vmm_fini(struct nouveau_vmm *vmm)
|
|
{
|
|
nouveau_svmm_fini(&vmm->svmm);
|
|
nvif_vmm_dtor(&vmm->vmm);
|
|
vmm->cli = NULL;
|
|
}
|
|
|
|
int
|
|
nouveau_vmm_init(struct nouveau_cli *cli, s32 oclass, struct nouveau_vmm *vmm)
|
|
{
|
|
int ret = nvif_vmm_ctor(&cli->mmu, "drmVmm", oclass, false, PAGE_SIZE,
|
|
0, NULL, 0, &vmm->vmm);
|
|
if (ret)
|
|
return ret;
|
|
|
|
vmm->cli = cli;
|
|
return 0;
|
|
}
|