drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memnv04.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 "mem.h"
  23
  24 #include <core/memory.h>
  25 #include <subdev/fb.h>
  26
  27 #include <nvif/if000b.h>
  28 #include <nvif/unpack.h>
  29
  30 int
  31 nv04_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv,
  32              u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma)
  33 {
  34         union {
  35                 struct nv04_mem_map_vn vn;
  36         } *args = argv;
  37         struct nvkm_device *device = mmu->subdev.device;
  38         const u64 addr = nvkm_memory_addr(memory);
  39         int ret = -ENOSYS;
  40
  41         if ((ret = nvif_unvers(ret, &argv, &argc, args->vn)))
  42                 return ret;
  43
  44         *paddr = device->func->resource_addr(device, 1) + addr;
  45         *psize = nvkm_memory_size(memory);
  46         *pvma = ERR_PTR(-ENODEV);
  47         return 0;
  48 }
  49
  50 int
  51 nv04_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
  52              void *argv, u32 argc, struct nvkm_memory **pmemory)
  53 {
  54         union {
  55                 struct nv04_mem_vn vn;
  56         } *args = argv;
  57         int ret = -ENOSYS;
  58
  59         if ((ret = nvif_unvers(ret, &argv, &argc, args->vn)))
  60                 return ret;
  61
  62         if (mmu->type[type].type & NVKM_MEM_MAPPABLE)
  63                 type = NVKM_RAM_MM_NORMAL;
  64         else
  65                 type = NVKM_RAM_MM_NOMAP;
  66
  67         return nvkm_ram_get(mmu->subdev.device, type, 0x01, page,
  68                             size, true, false, pmemory);
  69 }