LXR linux/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
  26static int
  27nvkm_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
  32static int
  33nvkm_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
  39static int
  40nvkm_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
  47static int
  48nvkm_oproxy_unmap(struct nvkm_object *object)
  49{
  50        return nvkm_object_unmap(nvkm_oproxy(object)->object);
  51}
  52
  53static int
  54nvkm_oproxy_rd08(struct nvkm_object *object, u64 addr, u8 *data)
  55{
  56        return nvkm_object_rd08(nvkm_oproxy(object)->object, addr, data);
  57}
  58
  59static int
  60nvkm_oproxy_rd16(struct nvkm_object *object, u64 addr, u16 *data)
  61{
  62        return nvkm_object_rd16(nvkm_oproxy(object)->object, addr, data);
  63}
  64
  65static int
  66nvkm_oproxy_rd32(struct nvkm_object *object, u64 addr, u32 *data)
  67{
  68        return nvkm_object_rd32(nvkm_oproxy(object)->object, addr, data);
  69}
  70
  71static int
  72nvkm_oproxy_wr08(struct nvkm_object *object, u64 addr, u8 data)
  73{
  74        return nvkm_object_wr08(nvkm_oproxy(object)->object, addr, data);
  75}
  76
  77static int
  78nvkm_oproxy_wr16(struct nvkm_object *object, u64 addr, u16 data)
  79{
  80        return nvkm_object_wr16(nvkm_oproxy(object)->object, addr, data);
  81}
  82
  83static int
  84nvkm_oproxy_wr32(struct nvkm_object *object, u64 addr, u32 data)
  85{
  86        return nvkm_object_wr32(nvkm_oproxy(object)->object, addr, data);
  87}
  88
  89static int
  90nvkm_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
  97static int
  98nvkm_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
 108static int
 109nvkm_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
 135static int
 136nvkm_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
 162static void *
 163nvkm_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
 174static const struct nvkm_object_func
 175nvkm_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
 193void
 194nvkm_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
 201int
 202nvkm_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}
 210