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
  24 void
  25 gk104_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
  32 static const struct nvkm_vmm_desc_func
  33 gk104_vmm_lpt = {
  34         .invalid = gk104_vmm_lpt_invalid,
  35         .unmap = gf100_vmm_pgt_unmap,
  36         .mem = gf100_vmm_pgt_mem,
  37 };
  38
  39 const struct nvkm_vmm_desc
  40 gk104_vmm_desc_17_12[] = {
  41         { SPT, 15, 8, 0x1000, &gf100_vmm_pgt },
  42         { PGD, 13, 8, 0x1000, &gf100_vmm_pgd },
  43         {}
  44 };
  45
  46 const struct nvkm_vmm_desc
  47 gk104_vmm_desc_17_17[] = {
  48         { LPT, 10, 8, 0x1000, &gk104_vmm_lpt },
  49         { PGD, 13, 8, 0x1000, &gf100_vmm_pgd },
  50         {}
  51 };
  52
  53 const struct nvkm_vmm_desc
  54 gk104_vmm_desc_16_12[] = {
  55         { SPT, 14, 8, 0x1000, &gf100_vmm_pgt },
  56         { PGD, 14, 8, 0x1000, &gf100_vmm_pgd },
  57         {}
  58 };
  59
  60 const struct nvkm_vmm_desc
  61 gk104_vmm_desc_16_16[] = {
  62         { LPT, 10, 8, 0x1000, &gk104_vmm_lpt },
  63         { PGD, 14, 8, 0x1000, &gf100_vmm_pgd },
  64         {}
  65 };
  66
  67 static const struct nvkm_vmm_func
  68 gk104_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
  82 static const struct nvkm_vmm_func
  83 gk104_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
  97 int
  98 gk104_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 }