1/*	$NetBSD: nouveau_nvkm_engine_disp_coregp102.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $	*/
2
3/*
4 * Copyright 2016 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 */
26#include <sys/cdefs.h>
27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_coregp102.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $");
28
29#include "channv50.h"
30
31#include <subdev/timer.h>
32
33static int
34gp102_disp_core_init(struct nv50_disp_chan *chan)
35{
36	struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev;
37	struct nvkm_device *device = subdev->device;
38
39	/* initialise channel for dma command submission */
40	nvkm_wr32(device, 0x611494, chan->push);
41	nvkm_wr32(device, 0x611498, 0x00010000);
42	nvkm_wr32(device, 0x61149c, 0x00000001);
43	nvkm_mask(device, 0x610490, 0x00000010, 0x00000010);
44	nvkm_wr32(device, 0x640000, 0x00000000);
45	nvkm_wr32(device, 0x610490, 0x01000013);
46
47	/* wait for it to go inactive */
48	if (nvkm_msec(device, 2000,
49		if (!(nvkm_rd32(device, 0x610490) & 0x80000000))
50			break;
51	) < 0) {
52		nvkm_error(subdev, "core init: %08x\n",
53			   nvkm_rd32(device, 0x610490));
54		return -EBUSY;
55	}
56
57	return 0;
58}
59
60static const struct nv50_disp_chan_func
61gp102_disp_core_func = {
62	.init = gp102_disp_core_init,
63	.fini = gf119_disp_core_fini,
64	.intr = gf119_disp_chan_intr,
65	.user = nv50_disp_chan_user,
66	.bind = gf119_disp_dmac_bind,
67};
68
69int
70gp102_disp_core_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
71		    struct nv50_disp *disp, struct nvkm_object **pobject)
72{
73	return nv50_disp_core_new_(&gp102_disp_core_func, &gk104_disp_core_mthd,
74				   disp, 0, oclass, argv, argc, pobject);
75}
76