| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Ben Skeggs |
| */ |
| #include <core/client.h> |
| #include <core/device.h> |
| #include <core/handle.h> |
| #include <core/notify.h> |
| #include <core/option.h> |
| |
| #include <nvif/class.h> |
| #include <nvif/event.h> |
| #include <nvif/unpack.h> |
| |
| struct nvkm_client_notify { |
| struct nvkm_client *client; |
| struct nvkm_notify n; |
| u8 version; |
| u8 size; |
| union { |
| struct nvif_notify_rep_v0 v0; |
| } rep; |
| }; |
| |
| static int |
| nvkm_client_notify(struct nvkm_notify *n) |
| { |
| struct nvkm_client_notify *notify = container_of(n, typeof(*notify), n); |
| struct nvkm_client *client = notify->client; |
| return client->ntfy(¬ify->rep, notify->size, n->data, n->size); |
| } |
| |
| int |
| nvkm_client_notify_put(struct nvkm_client *client, int index) |
| { |
| if (index < ARRAY_SIZE(client->notify)) { |
| if (client->notify[index]) { |
| nvkm_notify_put(&client->notify[index]->n); |
| return 0; |
| } |
| } |
| return -ENOENT; |
| } |
| |
| int |
| nvkm_client_notify_get(struct nvkm_client *client, int index) |
| { |
| if (index < ARRAY_SIZE(client->notify)) { |
| if (client->notify[index]) { |
| nvkm_notify_get(&client->notify[index]->n); |
| return 0; |
| } |
| } |
| return -ENOENT; |
| } |
| |
| int |
| nvkm_client_notify_del(struct nvkm_client *client, int index) |
| { |
| if (index < ARRAY_SIZE(client->notify)) { |
| if (client->notify[index]) { |
| nvkm_notify_fini(&client->notify[index]->n); |
| kfree(client->notify[index]); |
| client->notify[index] = NULL; |
| return 0; |
| } |
| } |
| return -ENOENT; |
| } |
| |
| int |
| nvkm_client_notify_new(struct nvkm_object *object, |
| struct nvkm_event *event, void *data, u32 size) |
| { |
| struct nvkm_client *client = nvkm_client(object); |
| struct nvkm_client_notify *notify; |
| union { |
| struct nvif_notify_req_v0 v0; |
| } *req = data; |
| u8 index, reply; |
| int ret; |
| |
| for (index = 0; index < ARRAY_SIZE(client->notify); index++) { |
| if (!client->notify[index]) |
| break; |
| } |
| |
| if (index == ARRAY_SIZE(client->notify)) |
| return -ENOSPC; |
| |
| notify = kzalloc(sizeof(*notify), GFP_KERNEL); |
| if (!notify) |
| return -ENOMEM; |
| |
| nvif_ioctl(object, "notify new size %d\n", size); |
| if (nvif_unpack(req->v0, 0, 0, true)) { |
| nvif_ioctl(object, "notify new vers %d reply %d route %02x " |
| "token %llx\n", req->v0.version, |
| req->v0.reply, req->v0.route, req->v0.token); |
| notify->version = req->v0.version; |
| notify->size = sizeof(notify->rep.v0); |
| notify->rep.v0.version = req->v0.version; |
| notify->rep.v0.route = req->v0.route; |
| notify->rep.v0.token = req->v0.token; |
| reply = req->v0.reply; |
| } |
| |
| if (ret == 0) { |
| ret = nvkm_notify_init(object, event, nvkm_client_notify, |
| false, data, size, reply, ¬ify->n); |
| if (ret == 0) { |
| client->notify[index] = notify; |
| notify->client = client; |
| return index; |
| } |
| } |
| |
| kfree(notify); |
| return ret; |
| } |
| |
| static int |
| nvkm_client_mthd_devlist(struct nvkm_object *object, void *data, u32 size) |
| { |
| union { |
| struct nv_client_devlist_v0 v0; |
| } *args = data; |
| int ret; |
| |
| nvif_ioctl(object, "client devlist size %d\n", size); |
| if (nvif_unpack(args->v0, 0, 0, true)) { |
| nvif_ioctl(object, "client devlist vers %d count %d\n", |
| args->v0.version, args->v0.count); |
| if (size == sizeof(args->v0.device[0]) * args->v0.count) { |
| ret = nvkm_device_list(args->v0.device, args->v0.count); |
| if (ret >= 0) { |
| args->v0.count = ret; |
| ret = 0; |
| } |
| } else { |
| ret = -EINVAL; |
| } |
| } |
| |
| return ret; |
| } |
| |
| static int |
| nvkm_client_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) |
| { |
| switch (mthd) { |
| case NV_CLIENT_DEVLIST: |
| return nvkm_client_mthd_devlist(object, data, size); |
| default: |
| break; |
| } |
| return -EINVAL; |
| } |
| |
| static struct nvkm_oclass |
| nvkm_client_oclass = { |
| .ofuncs = &(struct nvkm_ofuncs) { |
| .mthd = nvkm_client_mthd, |
| }, |
| }; |
| |
| int |
| nvkm_client_fini(struct nvkm_client *client, bool suspend) |
| { |
| struct nvkm_object *object = &client->namedb.parent.object; |
| const char *name[2] = { "fini", "suspend" }; |
| int ret, i; |
| nvif_trace(object, "%s running\n", name[suspend]); |
| nvif_trace(object, "%s notify\n", name[suspend]); |
| for (i = 0; i < ARRAY_SIZE(client->notify); i++) |
| nvkm_client_notify_put(client, i); |
| nvif_trace(object, "%s object\n", name[suspend]); |
| ret = nvkm_handle_fini(client->root, suspend); |
| nvif_trace(object, "%s completed with %d\n", name[suspend], ret); |
| return ret; |
| } |
| |
| int |
| nvkm_client_init(struct nvkm_client *client) |
| { |
| struct nvkm_object *object = &client->namedb.parent.object; |
| int ret; |
| nvif_trace(object, "init running\n"); |
| ret = nvkm_handle_init(client->root); |
| nvif_trace(object, "init completed with %d\n", ret); |
| return ret; |
| } |
| |
| void |
| nvkm_client_del(struct nvkm_client **pclient) |
| { |
| struct nvkm_client *client = *pclient; |
| int i; |
| if (client) { |
| nvkm_client_fini(client, false); |
| for (i = 0; i < ARRAY_SIZE(client->notify); i++) |
| nvkm_client_notify_del(client, i); |
| nvkm_object_ref(NULL, (struct nvkm_object **)&client->device); |
| nvkm_handle_destroy(client->root); |
| nvkm_namedb_destroy(&client->namedb); |
| *pclient = NULL; |
| } |
| } |
| |
| int |
| nvkm_client_new(const char *name, u64 devname, const char *cfg, |
| const char *dbg, struct nvkm_client **pclient) |
| { |
| struct nvkm_device *device; |
| struct nvkm_client *client; |
| int ret; |
| |
| device = nvkm_device_find(devname); |
| if (!device) |
| return -ENODEV; |
| |
| ret = nvkm_namedb_create(NULL, NULL, &nvkm_client_oclass, |
| NV_CLIENT_CLASS, NULL, |
| (1ULL << NVDEV_ENGINE_DEVICE), |
| &client); |
| *pclient = client; |
| if (ret) |
| return ret; |
| |
| ret = nvkm_handle_create(nv_object(client), ~0, ~0, nv_object(client), |
| &client->root); |
| if (ret) |
| return ret; |
| |
| /* prevent init/fini being called, os in in charge of this */ |
| atomic_set(&nv_object(client)->usecount, 2); |
| |
| nvkm_object_ref(&device->engine.subdev.object, |
| (struct nvkm_object **)&client->device); |
| snprintf(client->name, sizeof(client->name), "%s", name); |
| client->debug = nvkm_dbgopt(dbg, "CLIENT"); |
| return 0; |
| } |
| |
| const char * |
| nvkm_client_name(void *obj) |
| { |
| const char *client_name = "unknown"; |
| struct nvkm_client *client = nvkm_client(obj); |
| if (client) |
| client_name = client->name; |
| return client_name; |
| } |