LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.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
  24void
  25gk104_vmm_lpt_invalid(struct nvkm_vmm *vmm,
  26                      struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
  27{
  28        /* VALID_FALSE + PRIV tells the MMU to ignore corresponding SPTEs. */
  29        VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(1) /* PRIV. */, ptes);
  30}
  31
  32static const struct nvkm_vmm_desc_func
  33gk104_vmm_lpt = {
  34        .invalid = gk104_vmm_lpt_invalid,
  35        .unmap = gf100_vmm_pgt_unmap,
  36        .mem = gf100_vmm_pgt_mem,
  37};
  38
  39const struct nvkm_vmm_desc
  40gk104_vmm_desc_17_12[] = {
  41        { SPT, 15, 8, 0x1000, &gf100_vmm_pgt },
  42        { PGD, 13, 8, 0x1000, &gf100_vmm_pgd },
  43        {}
  44};
  45
  46const struct nvkm_vmm_desc
  47gk104_vmm_desc_17_17[] = {
  48        { LPT, 10, 8, 0x1000, &gk104_vmm_lpt },
  49        { PGD, 13, 8, 0x1000, &gf100_vmm_pgd },
  50        {}
  51};
  52
  53const struct nvkm_vmm_desc
  54gk104_vmm_desc_16_12[] = {
  55        { SPT, 14, 8, 0x1000, &gf100_vmm_pgt },
  56        { PGD, 14, 8, 0x1000, &gf100_vmm_pgd },
  57        {}
  58};
  59
  60const struct nvkm_vmm_desc
  61gk104_vmm_desc_16_16[] = {
  62        { LPT, 10, 8, 0x1000, &gk104_vmm_lpt },
  63        { PGD, 14, 8, 0x1000, &gf100_vmm_pgd },
  64        {}
  65};
  66
  67static const struct nvkm_vmm_func
  68gk104_vmm_17 = {
  69        .join = gf100_vmm_join,
  70        .part = gf100_vmm_part,
  71        .aper = gf100_vmm_aper,
  72        .valid = gf100_vmm_valid,
  73        .flush = gf100_vmm_flush,
  74        .invalidate_pdb = gf100_vmm_invalidate_pdb,
  75        .page = {
  76                { 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xVxC },
  77                { 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xVHx },
  78                {}
  79        }
  80};
  81
  82static const struct nvkm_vmm_func
  83gk104_vmm_16 = {
  84        .join = gf100_vmm_join,
  85        .part = gf100_vmm_part,
  86        .aper = gf100_vmm_aper,
  87        .valid = gf100_vmm_valid,
  88        .flush = gf100_vmm_flush,
  89        .invalidate_pdb = gf100_vmm_invalidate_pdb,
  90        .page = {
  91                { 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xVxC },
  92                { 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xVHx },
  93                {}
  94        }
  95};
  96
  97int
  98gk104_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
  99              void *argv, u32 argc, struct lock_class_key *key,
 100              const char *name, struct nvkm_vmm **pvmm)
 101{
 102        return gf100_vmm_new_(&gk104_vmm_16, &gk104_vmm_17, mmu, managed, addr,
 103                              size, argv, argc, key, name, pvmm);
 104}
 105