xref: /linux/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/ga102.c (revision e78f70bad29c5ae1e1076698b690b15794e9b81e)
1 /*
2  * Copyright 2021 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 "priv.h"
23 
24 #include <subdev/gsp.h>
25 
26 static const struct nvkm_falcon_func
27 ga102_nvdec_flcn = {
28 	.disable = gm200_flcn_disable,
29 	.enable = gm200_flcn_enable,
30 	.addr2 = 0x1c00,
31 	.reset_pmc = true,
32 	.reset_prep = ga102_flcn_reset_prep,
33 	.reset_wait_mem_scrubbing = ga102_flcn_reset_wait_mem_scrubbing,
34 	.imem_dma = &ga102_flcn_dma,
35 	.dmem_dma = &ga102_flcn_dma,
36 };
37 
38 static const struct nvkm_nvdec_func
39 ga102_nvdec = {
40 	.flcn = &ga102_nvdec_flcn,
41 };
42 
43 static int
44 ga102_nvdec_nofw(struct nvkm_nvdec *nvdec, int ver, const struct nvkm_nvdec_fwif *fwif)
45 {
46 	return 0;
47 }
48 
49 static const struct nvkm_nvdec_fwif
50 ga102_nvdec_fwif[] = {
51 	{ -1, ga102_nvdec_nofw, &ga102_nvdec },
52 	{}
53 };
54 
55 int
56 ga102_nvdec_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
57 		struct nvkm_nvdec **pnvdec)
58 {
59 	if (nvkm_gsp_rm(device->gsp))
60 		return -ENODEV;
61 
62 	return nvkm_nvdec_new_(ga102_nvdec_fwif, device, type, inst, 0x848000, pnvdec);
63 }
64