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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 "nouveau_mem.h"
#include "nouveau_drv.h"
#include "nouveau_bo.h"
#include <drm/ttm/ttm_bo_driver.h>
int
nouveau_mem_map(struct nouveau_mem *mem,
struct nvkm_vmm *vmm, struct nvkm_vma *vma)
{
nvkm_vm_map(vma, mem->_mem);
return 0;
}
void
nouveau_mem_fini(struct nouveau_mem *mem)
{
if (mem->vma[1].node) {
nvkm_vm_unmap(&mem->vma[1]);
nvkm_vm_put(&mem->vma[1]);
}
if (mem->vma[0].node) {
nvkm_vm_unmap(&mem->vma[0]);
nvkm_vm_put(&mem->vma[0]);
}
}
int
nouveau_mem_host(struct ttm_mem_reg *reg, struct ttm_dma_tt *tt)
{
struct nouveau_mem *mem = nouveau_mem(reg);
struct nouveau_cli *cli = mem->cli;
if (mem->kind && cli->device.info.chipset == 0x50)
mem->comp = mem->kind = 0;
if (mem->comp) {
if (cli->device.info.chipset >= 0xc0)
mem->kind = gf100_pte_storage_type_map[mem->kind];
mem->comp = 0;
}
mem->__mem.size = (reg->num_pages << PAGE_SHIFT) >> 12;
mem->__mem.memtype = (mem->comp << 7) | mem->kind;
if (tt->ttm.sg) mem->__mem.sg = tt->ttm.sg;
else mem->__mem.pages = tt->dma_address;
mem->_mem = &mem->__mem;
mem->mem.page = 12;
return 0;
}
int
nouveau_mem_vram(struct ttm_mem_reg *reg, bool contig, u8 page)
{
struct nouveau_mem *mem = nouveau_mem(reg);
struct nvkm_ram *ram = nvxx_fb(&mem->cli->device)->ram;
u64 size = ALIGN(reg->num_pages << PAGE_SHIFT, 1 << page);
int ret;
mem->mem.page = page;
ret = ram->func->get(ram, size, 1 << page, contig ? 0 : 1 << page,
(mem->comp << 8) | mem->kind, &mem->_mem);
if (ret)
return ret;
reg->start = mem->_mem->offset >> PAGE_SHIFT;
return ret;
}
void
nouveau_mem_del(struct ttm_mem_reg *reg)
{
struct nouveau_mem *mem = nouveau_mem(reg);
nouveau_mem_fini(mem);
kfree(reg->mm_node);
reg->mm_node = NULL;
}
int
nouveau_mem_new(struct nouveau_cli *cli, u8 kind, u8 comp,
struct ttm_mem_reg *reg)
{
struct nouveau_mem *mem;
if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL)))
return -ENOMEM;
mem->cli = cli;
mem->kind = kind;
mem->comp = comp;
reg->mm_node = mem;
return 0;
}
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