1 /*
2  * Copyright 2019 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 #include <subdev/gsp.h>
23 #include <subdev/top.h>
24 #include <engine/falcon.h>
25 
26 static int
27 gv100_gsp_oneinit(struct nvkm_subdev *subdev)
28 {
29 	struct nvkm_gsp *gsp = nvkm_gsp(subdev);
30 
31 	gsp->addr = nvkm_top_addr(subdev->device, subdev->index);
32 	if (!gsp->addr)
33 		return -EINVAL;
34 
35 	return nvkm_falcon_v1_new(subdev, "GSP", gsp->addr, &gsp->falcon);
36 }
37 
38 static void *
39 gv100_gsp_dtor(struct nvkm_subdev *subdev)
40 {
41 	struct nvkm_gsp *gsp = nvkm_gsp(subdev);
42 	nvkm_falcon_del(&gsp->falcon);
43 	return gsp;
44 }
45 
46 static const struct nvkm_subdev_func
47 gv100_gsp = {
48 	.dtor = gv100_gsp_dtor,
49 	.oneinit = gv100_gsp_oneinit,
50 };
51 
52 int
53 gv100_gsp_new(struct nvkm_device *device, int index, struct nvkm_gsp **pgsp)
54 {
55 	struct nvkm_gsp *gsp;
56 
57 	if (!(gsp = *pgsp = kzalloc(sizeof(*gsp), GFP_KERNEL)))
58 		return -ENOMEM;
59 
60 	nvkm_subdev_ctor(&gv100_gsp, device, index, &gsp->subdev);
61 	return 0;
62 }
63