drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm200.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 <subdev/fb.h>
  25
  26 #include <nvif/class.h>
  27
  28 const u8 *
  29 gm200_mmu_kind(struct nvkm_mmu *mmu, int *count)
  30 {
  31         static const u8
  32         kind[256] = {
  33                 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0xff, 0x01, /* 0x00 */
  34                 0x01, 0x01, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff,
  35                 0xff, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff, 0x11, /* 0x10 */
  36                 0x11, 0x11, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff,
  37                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x26, 0x27, /* 0x20 */
  38                 0x28, 0x29, 0x2a, 0x2b, 0xff, 0xff, 0xff, 0xff,
  39                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30 */
  40                 0xff, 0xff, 0x26, 0x27, 0x28, 0x29, 0x26, 0x27,
  41                 0x28, 0x29, 0xff, 0xff, 0xff, 0xff, 0x46, 0xff, /* 0x40 */
  42                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  43                 0xff, 0x46, 0x46, 0x46, 0x46, 0xff, 0xff, 0xff, /* 0x50 */
  44                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  45                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60 */
  46                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  47                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70 */
  48                 0xff, 0xff, 0xff, 0x7b, 0xff, 0xff, 0xff, 0xff,
  49                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7b, 0x7b, /* 0x80 */
  50                 0x7b, 0x7b, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xff,
  51                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90 */
  52                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
  53                 0xff, 0xff, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xa7, /* 0xa0 */
  54                 0xa8, 0xa9, 0xaa, 0xff, 0xff, 0xff, 0xff, 0xff,
  55                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0 */
  56                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xa7,
  57                 0xa8, 0xa9, 0xaa, 0xc3, 0xff, 0xff, 0xff, 0xff, /* 0xc0 */
  58                 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xc3, 0xc3,
  59                 0xc3, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0 */
  60                 0xfe, 0xff, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe,
  61                 0xfe, 0xff, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xff, /* 0xe0 */
  62                 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xfe, 0xff,
  63                 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf0 */
  64                 0xfe, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfe, 0xff
  65         };
  66         *count = ARRAY_SIZE(kind);
  67         return kind;
  68 }
  69
  70 static const struct nvkm_mmu_func
  71 gm200_mmu = {
  72         .limit = (1ULL << 40),
  73         .dma_bits = 40,
  74         .lpg_shift = 17,
  75         .vmm = {{ -1,  0, NVIF_CLASS_VMM_GM200}, gm200_vmm_new },
  76         .kind = gm200_mmu_kind,
  77 };
  78
  79 static const struct nvkm_mmu_func
  80 gm200_mmu_fixed = {
  81         .limit = (1ULL << 40),
  82         .dma_bits = 40,
  83         .lpg_shift = 17,
  84         .vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm200_vmm_new_fixed },
  85         .kind = gm200_mmu_kind,
  86 };
  87
  88 int
  89 gm200_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu)
  90 {
  91         if (device->fb->page)
  92                 return nvkm_mmu_new_(&gm200_mmu_fixed, device, index, pmmu);
  93         return nvkm_mmu_new_(&gm200_mmu, device, index, pmmu);
  94 }