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      1 /*	$NetBSD: nouveau_nvkm_subdev_fuse_base.c,v 1.4 2021/12/19 11:34:45 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2014 Martin Peres
      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: Martin Peres
     25  */
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_fuse_base.c,v 1.4 2021/12/19 11:34:45 riastradh Exp $");
     28 
     29 #include "priv.h"
     30 
     31 u32
     32 nvkm_fuse_read(struct nvkm_fuse *fuse, u32 addr)
     33 {
     34 	return fuse->func->read(fuse, addr);
     35 }
     36 
     37 static void *
     38 nvkm_fuse_dtor(struct nvkm_subdev *subdev)
     39 {
     40 	spin_lock_destroy(&nvkm_fuse(subdev)->lock);
     41 	return nvkm_fuse(subdev);
     42 }
     43 
     44 static const struct nvkm_subdev_func
     45 nvkm_fuse = {
     46 	.dtor = nvkm_fuse_dtor,
     47 };
     48 
     49 int
     50 nvkm_fuse_new_(const struct nvkm_fuse_func *func, struct nvkm_device *device,
     51 	       int index, struct nvkm_fuse **pfuse)
     52 {
     53 	struct nvkm_fuse *fuse;
     54 	if (!(fuse = *pfuse = kzalloc(sizeof(*fuse), GFP_KERNEL)))
     55 		return -ENOMEM;
     56 	nvkm_subdev_ctor(&nvkm_fuse, device, index, &fuse->subdev);
     57 	fuse->func = func;
     58 	spin_lock_init(&fuse->lock);
     59 	return 0;
     60 }
     61