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 000000000000..878a82f8f295
--- /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(&notify->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, &notify->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;
+}