LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/tu102.c

   1/*
   2 * Copyright 2018 Red Hat Inc.
   3 * Copyright 2019 NVIDIA Corporation.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the "Software"),
   7 * to deal in the Software without restriction, including without limitation
   8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 * and/or sell copies of the Software, and to permit persons to whom the
  10 * Software is furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice shall be included in
  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21 * OTHER DEALINGS IN THE SOFTWARE.
  22 */
  23#include "mem.h"
  24#include "vmm.h"
  25
  26#include <core/option.h>
  27
  28#include <nvif/class.h>
  29
  30static const u8 *
  31tu102_mmu_kind(struct nvkm_mmu *mmu, int *count, u8 *invalid)
  32{
  33        static const u8
  34        kind[16] = {
  35                0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00 */
  36                0x06, 0x06, 0x02, 0x01, 0x03, 0x04, 0x05, 0x07,
  37        };
  38        *count = ARRAY_SIZE(kind);
  39        *invalid = 0x07;
  40        return kind;
  41}
  42
  43static const struct nvkm_mmu_func
  44tu102_mmu = {
  45        .dma_bits = 47,
  46        .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
  47        .mem = {{ -1,  0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map },
  48        .vmm = {{ -1,  0, NVIF_CLASS_VMM_GP100}, tu102_vmm_new },
  49        .kind = tu102_mmu_kind,
  50        .kind_sys = true,
  51};
  52
  53int
  54tu102_mmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
  55              struct nvkm_mmu **pmmu)
  56{
  57        return nvkm_mmu_new_(&tu102_mmu, device, type, inst, pmmu);
  58}
  59