1 /*
2 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22 #include "priv.h"
23
24 #include <subdev/top.h>
25 #include <engine/falcon.h>
26
27 static int
28 nvkm_nvdec_oneinit(struct nvkm_engine *engine)
29 {
30 struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
31 struct nvkm_subdev *subdev = &nvdec->engine.subdev;
32
33 nvdec->addr = nvkm_top_addr(subdev->device, subdev->index);
34 if (!nvdec->addr)
35 return -EINVAL;
36
37 /*XXX: fix naming of this when adding support for multiple-NVDEC */
38 return nvkm_falcon_v1_new(subdev, "NVDEC", nvdec->addr,
39 &nvdec->falcon);
40 }
41
42 static void *
43 nvkm_nvdec_dtor(struct nvkm_engine *engine)
44 {
45 struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
46 nvkm_falcon_del(&nvdec->falcon);
47 return nvdec;
48 }
49
50 static const struct nvkm_engine_func
51 nvkm_nvdec = {
52 .dtor = nvkm_nvdec_dtor,
53 .oneinit = nvkm_nvdec_oneinit,
54 };
55
56 int
57 nvkm_nvdec_new_(struct nvkm_device *device, int index,
58 struct nvkm_nvdec **pnvdec)
59 {
60 struct nvkm_nvdec *nvdec;
61
62 if (!(nvdec = *pnvdec = kzalloc(sizeof(*nvdec), GFP_KERNEL)))
63 return -ENOMEM;
64
65 return nvkm_engine_ctor(&nvkm_nvdec, device, index, true,
66 &nvdec->engine);
67 };