--- /dev/null
+/*
+ * 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;
+}
Code Review / kvmfornfv.git / blobdiff