Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvif / client.c

diff --git a/kernel/drivers/gpu/drm/nouveau/nvif/client.c b/kernel/drivers/gpu/drm/nouveau/nvif/client.c
new file mode 100644 (file)
index 0000000..80b9684
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvif/client.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2013 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 <bskeggs@redhat.com>
+ */
+
+#include <nvif/client.h>
+#include <nvif/driver.h>
+#include <nvif/ioctl.h>
+
+int
+nvif_client_ioctl(struct nvif_client *client, void *data, u32 size)
+{
+       return client->driver->ioctl(client->base.priv, client->super, data, size, NULL);
+}
+
+int
+nvif_client_suspend(struct nvif_client *client)
+{
+       return client->driver->suspend(client->base.priv);
+}
+
+int
+nvif_client_resume(struct nvif_client *client)
+{
+       return client->driver->resume(client->base.priv);
+}
+
+void
+nvif_client_fini(struct nvif_client *client)
+{
+       if (client->driver) {
+               client->driver->fini(client->base.priv);
+               client->driver = NULL;
+               client->base.parent = NULL;
+               nvif_object_fini(&client->base);
+       }
+}
+
+const struct nvif_driver *
+nvif_drivers[] = {
+#ifdef __KERNEL__
+       &nvif_driver_nvkm,
+#else
+       &nvif_driver_drm,
+       &nvif_driver_lib,
+       &nvif_driver_null,
+#endif
+       NULL
+};
+
+int
+nvif_client_init(void (*dtor)(struct nvif_client *), const char *driver,
+                const char *name, u64 device, const char *cfg, const char *dbg,
+                struct nvif_client *client)
+{
+       int ret, i;
+
+       ret = nvif_object_init(NULL, (void*)dtor, 0, 0, NULL, 0, &client->base);
+       if (ret)
+               return ret;
+
+       client->base.parent = &client->base;
+       client->base.handle = ~0;
+       client->object = &client->base;
+       client->super = true;
+
+       for (i = 0, ret = -EINVAL; (client->driver = nvif_drivers[i]); i++) {
+               if (!driver || !strcmp(client->driver->name, driver)) {
+                       ret = client->driver->init(name, device, cfg, dbg,
+                                                 &client->base.priv);
+                       if (!ret || driver)
+                               break;
+               }
+       }
+
+       if (ret)
+               nvif_client_fini(client);
+       return ret;
+}
+
+static void
+nvif_client_del(struct nvif_client *client)
+{
+       nvif_client_fini(client);
+       kfree(client);
+}
+
+int
+nvif_client_new(const char *driver, const char *name, u64 device,
+               const char *cfg, const char *dbg,
+               struct nvif_client **pclient)
+{
+       struct nvif_client *client = kzalloc(sizeof(*client), GFP_KERNEL);
+       if (client) {
+               int ret = nvif_client_init(nvif_client_del, driver, name,
+                                          device, cfg, dbg, client);
+               if (ret) {
+                       kfree(client);
+                       client = NULL;
+               }
+               *pclient = client;
+               return ret;
+       }
+       return -ENOMEM;
+}
+
+void
+nvif_client_ref(struct nvif_client *client, struct nvif_client **pclient)
+{
+       nvif_object_ref(&client->base, (struct nvif_object **)pclient);
+}