forked from Minki/linux
115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/*
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* Copyright 2017 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "nouveau_mem.h"
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#include "nouveau_drv.h"
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#include "nouveau_bo.h"
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#include <drm/ttm/ttm_bo_driver.h>
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int
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nouveau_mem_map(struct nouveau_mem *mem,
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struct nvkm_vmm *vmm, struct nvkm_vma *vma)
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{
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nvkm_vm_map(vma, mem->_mem);
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return 0;
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}
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void
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nouveau_mem_fini(struct nouveau_mem *mem)
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{
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if (mem->vma[1].node) {
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nvkm_vm_unmap(&mem->vma[1]);
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nvkm_vm_put(&mem->vma[1]);
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}
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if (mem->vma[0].node) {
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nvkm_vm_unmap(&mem->vma[0]);
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nvkm_vm_put(&mem->vma[0]);
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}
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}
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int
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nouveau_mem_host(struct ttm_mem_reg *reg, struct ttm_dma_tt *tt)
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{
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struct nouveau_mem *mem = nouveau_mem(reg);
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struct nouveau_cli *cli = mem->cli;
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if (mem->kind && cli->device.info.chipset == 0x50)
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mem->comp = mem->kind = 0;
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if (mem->comp) {
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if (cli->device.info.chipset >= 0xc0)
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mem->kind = gf100_pte_storage_type_map[mem->kind];
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mem->comp = 0;
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}
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mem->__mem.size = (reg->num_pages << PAGE_SHIFT) >> 12;
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mem->__mem.memtype = (mem->comp << 7) | mem->kind;
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if (tt->ttm.sg) mem->__mem.sg = tt->ttm.sg;
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else mem->__mem.pages = tt->dma_address;
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mem->_mem = &mem->__mem;
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mem->mem.page = 12;
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return 0;
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}
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int
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nouveau_mem_vram(struct ttm_mem_reg *reg, bool contig, u8 page)
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{
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struct nouveau_mem *mem = nouveau_mem(reg);
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struct nvkm_ram *ram = nvxx_fb(&mem->cli->device)->ram;
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u64 size = ALIGN(reg->num_pages << PAGE_SHIFT, 1 << page);
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int ret;
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mem->mem.page = page;
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ret = ram->func->get(ram, size, 1 << page, contig ? 0 : 1 << page,
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(mem->comp << 8) | mem->kind, &mem->_mem);
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if (ret)
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return ret;
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reg->start = mem->_mem->offset >> PAGE_SHIFT;
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return ret;
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}
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void
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nouveau_mem_del(struct ttm_mem_reg *reg)
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{
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struct nouveau_mem *mem = nouveau_mem(reg);
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nouveau_mem_fini(mem);
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kfree(reg->mm_node);
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reg->mm_node = NULL;
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}
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int
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nouveau_mem_new(struct nouveau_cli *cli, u8 kind, u8 comp,
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struct ttm_mem_reg *reg)
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{
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struct nouveau_mem *mem;
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if (!(mem = kzalloc(sizeof(*mem), GFP_KERNEL)))
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return -ENOMEM;
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mem->cli = cli;
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mem->kind = kind;
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mem->comp = comp;
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reg->mm_node = mem;
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return 0;
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}
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