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
  26 int
  27 gk20a_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
  36 static const struct nvkm_vmm_func
  37 gk20a_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         .invalidate_pdb = gf100_vmm_invalidate_pdb,
  44         .page = {
  45                 { 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xxHC },
  46                 { 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xxHx },
  47                 {}
  48         }
  49 };
  50
  51 static const struct nvkm_vmm_func
  52 gk20a_vmm_16 = {
  53         .join = gf100_vmm_join,
  54         .part = gf100_vmm_part,
  55         .aper = gf100_vmm_aper,
  56         .valid = gf100_vmm_valid,
  57         .flush = gf100_vmm_flush,
  58         .invalidate_pdb = gf100_vmm_invalidate_pdb,
  59         .page = {
  60                 { 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xxHC },
  61                 { 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xxHx },
  62                 {}
  63         }
  64 };
  65
  66 int
  67 gk20a_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
  68               void *argv, u32 argc, struct lock_class_key *key,
  69               const char *name, struct nvkm_vmm **pvmm)
  70 {
  71         return gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, managed, addr,
  72                               size, argv, argc, key, name, pvmm);
  73 }