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1/*2 * Copyright 2012 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */24#include <core/client.h>25#include <core/device.h>26#include <core/option.h>27 28#include <nvif/class.h>29#include <nvif/event.h>30#include <nvif/if0000.h>31#include <nvif/unpack.h>32 33static int34nvkm_uclient_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,35 struct nvkm_object **pobject)36{37 union {38 struct nvif_client_v0 v0;39 } *args = argv;40 struct nvkm_client *client;41 int ret = -ENOSYS;42 43 if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))){44 args->v0.name[sizeof(args->v0.name) - 1] = 0;45 ret = nvkm_client_new(args->v0.name, oclass->client->device, NULL,46 NULL, oclass->client->event, &client);47 if (ret)48 return ret;49 } else50 return ret;51 52 client->object.client = oclass->client;53 client->object.handle = oclass->handle;54 client->object.object = oclass->object;55 client->debug = oclass->client->debug;56 *pobject = &client->object;57 return 0;58}59 60static const struct nvkm_sclass61nvkm_uclient_sclass = {62 .oclass = NVIF_CLASS_CLIENT,63 .minver = 0,64 .maxver = 0,65 .ctor = nvkm_uclient_new,66};67 68static int69nvkm_client_child_new(const struct nvkm_oclass *oclass,70 void *data, u32 size, struct nvkm_object **pobject)71{72 return oclass->base.ctor(oclass, data, size, pobject);73}74 75static int76nvkm_client_child_get(struct nvkm_object *object, int index,77 struct nvkm_oclass *oclass)78{79 const struct nvkm_sclass *sclass;80 81 switch (index) {82 case 0: sclass = &nvkm_uclient_sclass; break;83 case 1: sclass = &nvkm_udevice_sclass; break;84 default:85 return -EINVAL;86 }87 88 oclass->ctor = nvkm_client_child_new;89 oclass->base = *sclass;90 return 0;91}92 93static void *94nvkm_client_dtor(struct nvkm_object *object)95{96 return nvkm_client(object);97}98 99static const struct nvkm_object_func100nvkm_client = {101 .dtor = nvkm_client_dtor,102 .sclass = nvkm_client_child_get,103};104 105int106nvkm_client_new(const char *name, u64 device, const char *cfg, const char *dbg,107 int (*event)(u64, void *, u32), struct nvkm_client **pclient)108{109 struct nvkm_oclass oclass = { .base = nvkm_uclient_sclass };110 struct nvkm_client *client;111 112 if (!(client = *pclient = kzalloc(sizeof(*client), GFP_KERNEL)))113 return -ENOMEM;114 oclass.client = client;115 116 nvkm_object_ctor(&nvkm_client, &oclass, &client->object);117 snprintf(client->name, sizeof(client->name), "%s", name);118 client->device = device;119 client->debug = nvkm_dbgopt(dbg, "CLIENT");120 client->objroot = RB_ROOT;121 spin_lock_init(&client->obj_lock);122 client->event = event;123 INIT_LIST_HEAD(&client->umem);124 spin_lock_init(&client->lock);125 return 0;126}127