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/*
* 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 <nvif/if500d.h>
#include <nvif/unpack.h>
static const struct nvkm_vmm_desc_func
nv50_vmm_pgt = {
};
static const struct nvkm_vmm_desc_func
nv50_vmm_pgd = {
};
static const struct nvkm_vmm_desc
nv50_vmm_desc_12[] = {
{ PGT, 17, 8, 0x1000, &nv50_vmm_pgt },
{ PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
{}
};
static const struct nvkm_vmm_desc
nv50_vmm_desc_16[] = {
{ PGT, 13, 8, 0x1000, &nv50_vmm_pgt },
{ PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
{}
};
static 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;
}
}
}
static int
nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
{
struct nvkm_vmm_join *join;
if (!(join = kmalloc(sizeof(*join), GFP_KERNEL)))
return -ENOMEM;
join->inst = inst;
list_add_tail(&join->head, &vmm->join);
return 0;
}
static const struct nvkm_vmm_func
nv50_vmm = {
.join = nv50_vmm_join,
.part = nv50_vmm_part,
.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, 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, addr, size,
argv, argc, key, name, pvmm);
}
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