LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk20a.c

   1/*
   2 * Copyright 2017 Red Hat Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 */
  22#include "vmm.h"
  23
  24#include <core/memory.h>
  25
  26int
  27gk20a_vmm_aper(enum nvkm_memory_target target)
  28{
  29        switch (target) {
  30        case NVKM_MEM_TARGET_NCOH: return 0;
  31        default:
  32                return -EINVAL;
  33        }
  34}
  35
  36static const struct nvkm_vmm_func
  37gk20a_vmm_17 = {
  38        .join = gf100_vmm_join,
  39        .part = gf100_vmm_part,
  40        .aper = gf100_vmm_aper,
  41        .valid = gf100_vmm_valid,
  42        .flush = gf100_vmm_flush,
  43        .page = {
  44                { 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xxHC },
  45                { 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xxHx },
  46                {}
  47        }
  48};
  49
  50static const struct nvkm_vmm_func
  51gk20a_vmm_16 = {
  52        .join = gf100_vmm_join,
  53        .part = gf100_vmm_part,
  54        .aper = gf100_vmm_aper,
  55        .valid = gf100_vmm_valid,
  56        .flush = gf100_vmm_flush,
  57        .page = {
  58                { 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xxHC },
  59                { 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xxHx },
  60                {}
  61        }
  62};
  63
  64int
  65gk20a_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
  66              struct lock_class_key *key, const char *name,
  67              struct nvkm_vmm **pvmm)
  68{
  69        return gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, addr,
  70                              size, argv, argc, key, name, pvmm);
  71}
  72