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      1 /*	$NetBSD: nouveau_nvif_driver.c,v 1.2 2021/12/18 23:45:33 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2016 Red Hat Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: Ben Skeggs
     25  */
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvif_driver.c,v 1.2 2021/12/18 23:45:33 riastradh Exp $");
     28 
     29 #include <nvif/driver.h>
     30 #include <nvif/client.h>
     31 
     32 static const struct nvif_driver *
     33 nvif_driver[] = {
     34 #ifdef __KERNEL__
     35 	&nvif_driver_nvkm,
     36 #else
     37 	&nvif_driver_drm,
     38 	&nvif_driver_lib,
     39 	&nvif_driver_null,
     40 #endif
     41 	NULL
     42 };
     43 
     44 int
     45 nvif_driver_init(const char *drv, const char *cfg, const char *dbg,
     46 		 const char *name, u64 device, struct nvif_client *client)
     47 {
     48 	int ret = -EINVAL, i;
     49 
     50 	for (i = 0; (client->driver = nvif_driver[i]); i++) {
     51 		if (!drv || !strcmp(client->driver->name, drv)) {
     52 			ret = client->driver->init(name, device, cfg, dbg,
     53 						   &client->object.priv);
     54 			if (ret == 0)
     55 				break;
     56 			client->driver->fini(client->object.priv);
     57 		}
     58 	}
     59 
     60 	if (ret == 0)
     61 		ret = nvif_client_init(client, name, device, client);
     62 	return ret;
     63 }
     64