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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 <drm/ttm/ttm_tt.h>
#include "nouveau_mem.h"
#include "nouveau_drv.h"
#include "nouveau_bo.h"
#include <nvif/class.h>
#include <nvif/if000a.h>
#include <nvif/if500b.h>
#include <nvif/if500d.h>
#include <nvif/if900b.h>
#include <nvif/if900d.h>
int
nouveau_mem_map(struct nouveau_mem *mem,
struct nvif_vmm *vmm, struct nvif_vma *vma)
{
union {
struct nv50_vmm_map_v0 nv50;
struct gf100_vmm_map_v0 gf100;
} args;
u32 argc = 0;
switch (vmm->object.oclass) {
case NVIF_CLASS_VMM_NV04:
break;
case NVIF_CLASS_VMM_NV50:
args.nv50.version = 0;
args.nv50.ro = 0;
args.nv50.priv = 0;
args.nv50.kind = mem->kind;
args.nv50.comp = mem->comp;
argc = sizeof(args.nv50);
break;
case NVIF_CLASS_VMM_GF100:
case NVIF_CLASS_VMM_GM200:
case NVIF_CLASS_VMM_GP100:
args.gf100.version = 0;
if (mem->mem.type & NVIF_MEM_VRAM)
args.gf100.vol = 0;
else
args.gf100.vol = 1;
args.gf100.ro = 0;
args.gf100.priv = 0;
args.gf100.kind = mem->kind;
argc = sizeof(args.gf100);
break;
default:
WARN_ON(1);
return -ENOSYS;
}
return nvif_vmm_map(vmm, vma->addr, mem->mem.size, &args, argc, &mem->mem, 0);
}
void
nouveau_mem_fini(struct nouveau_mem *mem)
{
nvif_vmm_put(&mem->cli->drm->client.vmm.vmm, &mem->vma[1]);
nvif_vmm_put(&mem->cli->drm->client.vmm.vmm, &mem->vma[0]);
mutex_lock(&mem->cli->drm->master.lock);
nvif_mem_dtor(&mem->mem);
mutex_unlock(&mem->cli->drm->master.lock);
}
int
nouveau_mem_host(struct ttm_resource *reg, struct ttm_tt *tt)
{
struct nouveau_mem *mem = nouveau_mem(reg);
struct nouveau_cli *cli = mem->cli;
struct nouveau_drm *drm = cli->drm;
struct nvif_mmu *mmu = &cli->mmu;
struct nvif_mem_ram_v0 args = {};
u8 type;
int ret;
if (!nouveau_drm_use_coherent_gpu_mapping(drm))
type = drm->ttm.type_ncoh[!!mem->kind];
else
type = drm->ttm.type_host[0];
if (mem->kind && !(mmu->type[type].type & NVIF_MEM_KIND))
mem->comp = mem->kind = 0;
if (mem->comp && !(mmu->type[type].type & NVIF_MEM_COMP)) {
if (mmu->object.oclass >= NVIF_CLASS_MMU_GF100)
mem->kind = mmu->kind[mem->kind];
mem->comp = 0;
}
if (tt->sg)
args.sgl = tt->sg->sgl;
else
args.dma = tt->dma_address;
mutex_lock(&drm->master.lock);
ret = nvif_mem_ctor_type(mmu, "ttmHostMem", cli->mem->oclass, type, PAGE_SHIFT,
reg->size,
&args, sizeof(args), &mem->mem);
mutex_unlock(&drm->master.lock);
return ret;
}
int
nouveau_mem_vram(struct ttm_resource *reg, bool contig, u8 page)
{
struct nouveau_mem *mem = nouveau_mem(reg);
struct nouveau_cli *cli = mem->cli;
struct nouveau_drm *drm = cli->drm;
struct nvif_mmu *mmu = &cli->mmu;
u64 size = ALIGN(reg->size, 1 << page);
int ret;
mutex_lock(&drm->master.lock);
switch (cli->mem->oclass) {
case NVIF_CLASS_MEM_GF100:
ret = nvif_mem_ctor_type(mmu, "ttmVram", cli->mem->oclass,
drm->ttm.type_vram, page, size,
&(struct gf100_mem_v0) {
.contig = contig,
}, sizeof(struct gf100_mem_v0),
&mem->mem);
break;
case NVIF_CLASS_MEM_NV50:
ret = nvif_mem_ctor_type(mmu, "ttmVram", cli->mem->oclass,
drm->ttm.type_vram, page, size,
&(struct nv50_mem_v0) {
.bankswz = mmu->kind[mem->kind] == 2,
.contig = contig,
}, sizeof(struct nv50_mem_v0),
&mem->mem);
break;
default:
ret = -ENOSYS;
WARN_ON(1);
break;
}
mutex_unlock(&drm->master.lock);
reg->start = mem->mem.addr >> PAGE_SHIFT;
return ret;
}
void
nouveau_mem_del(struct ttm_resource_manager *man, struct ttm_resource *reg)
{
struct nouveau_mem *mem = nouveau_mem(reg);
nouveau_mem_fini(mem);
ttm_resource_fini(man, reg);
kfree(mem);
}
int
nouveau_mem_new(struct nouveau_cli *cli, u8 kind, u8 comp,
struct ttm_resource **res)
{
struct nouveau_mem *mem;
if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL)))
return -ENOMEM;
mem->cli = cli;
mem->kind = kind;
mem->comp = comp;
*res = &mem->base;
return 0;
}
bool
nouveau_mem_intersects(struct ttm_resource *res,
const struct ttm_place *place,
size_t size)
{
u32 num_pages = PFN_UP(size);
/* Don't evict BOs outside of the requested placement range */
if (place->fpfn >= (res->start + num_pages) ||
(place->lpfn && place->lpfn <= res->start))
return false;
return true;
}
bool
nouveau_mem_compatible(struct ttm_resource *res,
const struct ttm_place *place,
size_t size)
{
u32 num_pages = PFN_UP(size);
if (res->start < place->fpfn ||
(place->lpfn && (res->start + num_pages) > place->lpfn))
return false;
return true;
}
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