base.c

 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#include <core/firmware.h>
24
25static void *
26nvkm_nvdec_dtor(struct nvkm_engine *engine)
27{
28	struct nvkm_nvdec *nvdec = nvkm_nvdec(engine);
29	nvkm_falcon_dtor(&nvdec->falcon);
30	return nvdec;
31}
32
33static const struct nvkm_engine_func
34nvkm_nvdec = {
35	.dtor = nvkm_nvdec_dtor,
36	.sclass = { {} },
37};
38
39int
40nvkm_nvdec_new_(const struct nvkm_nvdec_fwif *fwif, struct nvkm_device *device,
41		enum nvkm_subdev_type type, int inst, u32 addr, struct nvkm_nvdec **pnvdec)
42{
43	struct nvkm_nvdec *nvdec;
44	int ret;
45
46	if (!(nvdec = *pnvdec = kzalloc(sizeof(*nvdec), GFP_KERNEL)))
47		return -ENOMEM;
48
49	ret = nvkm_engine_ctor(&nvkm_nvdec, device, type, inst, true,
50			       &nvdec->engine);
51	if (ret)
52		return ret;
53
54	fwif = nvkm_firmware_load(&nvdec->engine.subdev, fwif, "Nvdec", nvdec);
55	if (IS_ERR(fwif))
56		return -ENODEV;
57
58	nvdec->func = fwif->func;
59
60	return nvkm_falcon_ctor(nvdec->func->flcn, &nvdec->engine.subdev,
61				nvdec->engine.subdev.name, addr, &nvdec->falcon);
62}