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 }