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