diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/core/client.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/core/client.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/client.c b/drivers/gpu/drm/nouveau/nvkm/core/client.c new file mode 100644 index 000000000..878a82f8f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/core/client.c @@ -0,0 +1,266 @@ +/* + * 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; + + nv_ioctl(client, "notify new size %d\n", size); + if (nvif_unpack(req->v0, 0, 0, true)) { + nv_ioctl(client, "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; + + nv_ioctl(object, "client devlist size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, true)) { + nv_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 void +nvkm_client_dtor(struct nvkm_object *object) +{ + struct nvkm_client *client = (void *)object; + int i; + for (i = 0; i < ARRAY_SIZE(client->notify); i++) + nvkm_client_notify_del(client, i); + nvkm_object_ref(NULL, &client->device); + nvkm_handle_destroy(client->root); + nvkm_namedb_destroy(&client->namedb); +} + +static struct nvkm_oclass +nvkm_client_oclass = { + .ofuncs = &(struct nvkm_ofuncs) { + .dtor = nvkm_client_dtor, + .mthd = nvkm_client_mthd, + }, +}; + +int +nvkm_client_create_(const char *name, u64 devname, const char *cfg, + const char *dbg, int length, void **pobject) +{ + struct nvkm_object *device; + struct nvkm_client *client; + int ret; + + device = (void *)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), + length, pobject); + client = *pobject; + 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, &client->device); + snprintf(client->name, sizeof(client->name), "%s", name); + client->debug = nvkm_dbgopt(dbg, "CLIENT"); + return 0; +} + +int +nvkm_client_init(struct nvkm_client *client) +{ + int ret; + nv_debug(client, "init running\n"); + ret = nvkm_handle_init(client->root); + nv_debug(client, "init completed with %d\n", ret); + return ret; +} + +int +nvkm_client_fini(struct nvkm_client *client, bool suspend) +{ + const char *name[2] = { "fini", "suspend" }; + int ret, i; + nv_debug(client, "%s running\n", name[suspend]); + nv_debug(client, "%s notify\n", name[suspend]); + for (i = 0; i < ARRAY_SIZE(client->notify); i++) + nvkm_client_notify_put(client, i); + nv_debug(client, "%s object\n", name[suspend]); + ret = nvkm_handle_fini(client->root, suspend); + nv_debug(client, "%s completed with %d\n", name[suspend], ret); + return ret; +} + +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; +} |