drivers/gpu/drm/nouveau/nvkm/core/oproxy.c

   1 /*
   2  * Copyright 2015 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  * Authors: Ben Skeggs <bskeggs@redhat.com>
  23  */
  24 #include <core/oproxy.h>
  25
  26 static int
  27 nvkm_oproxy_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
  28 {
  29         return nvkm_object_mthd(nvkm_oproxy(object)->object, mthd, data, size);
  30 }
  31
  32 static int
  33 nvkm_oproxy_ntfy(struct nvkm_object *object, u32 mthd,
  34                  struct nvkm_event **pevent)
  35 {
  36         return nvkm_object_ntfy(nvkm_oproxy(object)->object, mthd, pevent);
  37 }
  38
  39 static int
  40 nvkm_oproxy_map(struct nvkm_object *object, void *argv, u32 argc,
  41                 enum nvkm_object_map *type, u64 *addr, u64 *size)
  42 {
  43         struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
  44         return nvkm_object_map(oproxy->object, argv, argc, type, addr, size);
  45 }
  46
  47 static int
  48 nvkm_oproxy_unmap(struct nvkm_object *object)
  49 {
  50         return nvkm_object_unmap(nvkm_oproxy(object)->object);
  51 }
  52
  53 static int
  54 nvkm_oproxy_rd08(struct nvkm_object *object, u64 addr, u8 *data)
  55 {
  56         return nvkm_object_rd08(nvkm_oproxy(object)->object, addr, data);
  57 }
  58
  59 static int
  60 nvkm_oproxy_rd16(struct nvkm_object *object, u64 addr, u16 *data)
  61 {
  62         return nvkm_object_rd16(nvkm_oproxy(object)->object, addr, data);
  63 }
  64
  65 static int
  66 nvkm_oproxy_rd32(struct nvkm_object *object, u64 addr, u32 *data)
  67 {
  68         return nvkm_object_rd32(nvkm_oproxy(object)->object, addr, data);
  69 }
  70
  71 static int
  72 nvkm_oproxy_wr08(struct nvkm_object *object, u64 addr, u8 data)
  73 {
  74         return nvkm_object_wr08(nvkm_oproxy(object)->object, addr, data);
  75 }
  76
  77 static int
  78 nvkm_oproxy_wr16(struct nvkm_object *object, u64 addr, u16 data)
  79 {
  80         return nvkm_object_wr16(nvkm_oproxy(object)->object, addr, data);
  81 }
  82
  83 static int
  84 nvkm_oproxy_wr32(struct nvkm_object *object, u64 addr, u32 data)
  85 {
  86         return nvkm_object_wr32(nvkm_oproxy(object)->object, addr, data);
  87 }
  88
  89 static int
  90 nvkm_oproxy_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
  91                  int align, struct nvkm_gpuobj **pgpuobj)
  92 {
  93         return nvkm_object_bind(nvkm_oproxy(object)->object,
  94                                 parent, align, pgpuobj);
  95 }
  96
  97 static int
  98 nvkm_oproxy_sclass(struct nvkm_object *object, int index,
  99                    struct nvkm_oclass *oclass)
 100 {
 101         struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
 102         oclass->parent = oproxy->object;
 103         if (!oproxy->object->func->sclass)
 104                 return -ENODEV;
 105         return oproxy->object->func->sclass(oproxy->object, index, oclass);
 106 }
 107
 108 static int
 109 nvkm_oproxy_fini(struct nvkm_object *object, bool suspend)
 110 {
 111         struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
 112         int ret;
 113
 114         if (oproxy->func->fini[0]) {
 115                 ret = oproxy->func->fini[0](oproxy, suspend);
 116                 if (ret && suspend)
 117                         return ret;
 118         }
 119
 120         if (oproxy->object->func->fini) {
 121                 ret = oproxy->object->func->fini(oproxy->object, suspend);
 122                 if (ret && suspend)
 123                         return ret;
 124         }
 125
 126         if (oproxy->func->fini[1]) {
 127                 ret = oproxy->func->fini[1](oproxy, suspend);
 128                 if (ret && suspend)
 129                         return ret;
 130         }
 131
 132         return 0;
 133 }
 134
 135 static int
 136 nvkm_oproxy_init(struct nvkm_object *object)
 137 {
 138         struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
 139         int ret;
 140
 141         if (oproxy->func->init[0]) {
 142                 ret = oproxy->func->init[0](oproxy);
 143                 if (ret)
 144                         return ret;
 145         }
 146
 147         if (oproxy->object->func->init) {
 148                 ret = oproxy->object->func->init(oproxy->object);
 149                 if (ret)
 150                         return ret;
 151         }
 152
 153         if (oproxy->func->init[1]) {
 154                 ret = oproxy->func->init[1](oproxy);
 155                 if (ret)
 156                         return ret;
 157         }
 158
 159         return 0;
 160 }
 161
 162 static void *
 163 nvkm_oproxy_dtor(struct nvkm_object *object)
 164 {
 165         struct nvkm_oproxy *oproxy = nvkm_oproxy(object);
 166         if (oproxy->func->dtor[0])
 167                 oproxy->func->dtor[0](oproxy);
 168         nvkm_object_del(&oproxy->object);
 169         if (oproxy->func->dtor[1])
 170                 oproxy->func->dtor[1](oproxy);
 171         return oproxy;
 172 }
 173
 174 static const struct nvkm_object_func
 175 nvkm_oproxy_func = {
 176         .dtor = nvkm_oproxy_dtor,
 177         .init = nvkm_oproxy_init,
 178         .fini = nvkm_oproxy_fini,
 179         .mthd = nvkm_oproxy_mthd,
 180         .ntfy = nvkm_oproxy_ntfy,
 181         .map = nvkm_oproxy_map,
 182         .unmap = nvkm_oproxy_unmap,
 183         .rd08 = nvkm_oproxy_rd08,
 184         .rd16 = nvkm_oproxy_rd16,
 185         .rd32 = nvkm_oproxy_rd32,
 186         .wr08 = nvkm_oproxy_wr08,
 187         .wr16 = nvkm_oproxy_wr16,
 188         .wr32 = nvkm_oproxy_wr32,
 189         .bind = nvkm_oproxy_bind,
 190         .sclass = nvkm_oproxy_sclass,
 191 };
 192
 193 void
 194 nvkm_oproxy_ctor(const struct nvkm_oproxy_func *func,
 195                  const struct nvkm_oclass *oclass, struct nvkm_oproxy *oproxy)
 196 {
 197         nvkm_object_ctor(&nvkm_oproxy_func, oclass, &oproxy->base);
 198         oproxy->func = func;
 199 }
 200
 201 int
 202 nvkm_oproxy_new_(const struct nvkm_oproxy_func *func,
 203                  const struct nvkm_oclass *oclass, struct nvkm_oproxy **poproxy)
 204 {
 205         if (!(*poproxy = kzalloc(sizeof(**poproxy), GFP_KERNEL)))
 206                 return -ENOMEM;
 207         nvkm_oproxy_ctor(func, oclass, *poproxy);
 208         return 0;
 209 }