drivers/gpu/drm/nouveau/nvkm/subdev/mmu/memgf100.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/bar.h>
  26 #include <subdev/fb.h>
  27
  28 #include <nvif/class.h>
  29 #include <nvif/if900b.h>
  30 #include <nvif/if900d.h>
  31 #include <nvif/unpack.h>
  32
  33 int
  34 gf100_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv,
  35               u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma)
  36 {
  37         struct gf100_vmm_map_v0 uvmm = {};
  38         union {
  39                 struct gf100_mem_map_vn vn;
  40                 struct gf100_mem_map_v0 v0;
  41         } *args = argv;
  42         struct nvkm_device *device = mmu->subdev.device;
  43         struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device);
  44         int ret = -ENOSYS;
  45
  46         if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
  47                 uvmm.ro   = args->v0.ro;
  48                 uvmm.kind = args->v0.kind;
  49         } else
  50         if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
  51         } else
  52                 return ret;
  53
  54         ret = nvkm_vmm_get(bar, nvkm_memory_page(memory),
  55                                 nvkm_memory_size(memory), pvma);
  56         if (ret)
  57                 return ret;
  58
  59         ret = nvkm_memory_map(memory, 0, bar, *pvma, &uvmm, sizeof(uvmm));
  60         if (ret)
  61                 return ret;
  62
  63         *paddr = device->func->resource_addr(device, 1) + (*pvma)->addr;
  64         *psize = (*pvma)->size;
  65         return 0;
  66 }
  67
  68 int
  69 gf100_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
  70               void *argv, u32 argc, struct nvkm_memory **pmemory)
  71 {
  72         union {
  73                 struct gf100_mem_vn vn;
  74                 struct gf100_mem_v0 v0;
  75         } *args = argv;
  76         int ret = -ENOSYS;
  77         bool contig;
  78
  79         if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
  80                 contig = args->v0.contig;
  81         } else
  82         if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
  83                 contig = false;
  84         } else
  85                 return ret;
  86
  87         if (mmu->type[type].type & (NVKM_MEM_DISP | NVKM_MEM_COMP))
  88                 type = NVKM_RAM_MM_NORMAL;
  89         else
  90                 type = NVKM_RAM_MM_MIXED;
  91
  92         return nvkm_ram_get(mmu->subdev.device, type, 0x01, page,
  93                             size, contig, false, pmemory);
  94 }