1/*	$NetBSD: nouveau_nvkm_engine_disp_headgv100.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $	*/
2
3/*
4 * Copyright 2018 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#include <sys/cdefs.h>
25__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_headgv100.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $");
26
27#include "head.h"
28
29static void
30gv100_head_vblank_put(struct nvkm_head *head)
31{
32	struct nvkm_device *device = head->disp->engine.subdev.device;
33	nvkm_mask(device, 0x611d80 + (head->id * 4), 0x00000004, 0x00000000);
34}
35
36static void
37gv100_head_vblank_get(struct nvkm_head *head)
38{
39	struct nvkm_device *device = head->disp->engine.subdev.device;
40	nvkm_mask(device, 0x611d80 + (head->id * 4), 0x00000004, 0x00000004);
41}
42
43static void
44gv100_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline)
45{
46	struct nvkm_device *device = head->disp->engine.subdev.device;
47	const u32 hoff = head->id * 0x800;
48	/* vline read locks hline. */
49	*vline = nvkm_rd32(device, 0x616330 + hoff) & 0x0000ffff;
50	*hline = nvkm_rd32(device, 0x616334 + hoff) & 0x0000ffff;
51}
52
53static void
54gv100_head_state(struct nvkm_head *head, struct nvkm_head_state *state)
55{
56	struct nvkm_device *device = head->disp->engine.subdev.device;
57	const u32 hoff = (state == &head->arm) * 0x8000 + head->id * 0x400;
58	u32 data;
59
60	data = nvkm_rd32(device, 0x682064 + hoff);
61	state->vtotal = (data & 0xffff0000) >> 16;
62	state->htotal = (data & 0x0000ffff);
63	data = nvkm_rd32(device, 0x682068 + hoff);
64	state->vsynce = (data & 0xffff0000) >> 16;
65	state->hsynce = (data & 0x0000ffff);
66	data = nvkm_rd32(device, 0x68206c + hoff);
67	state->vblanke = (data & 0xffff0000) >> 16;
68	state->hblanke = (data & 0x0000ffff);
69	data = nvkm_rd32(device, 0x682070 + hoff);
70	state->vblanks = (data & 0xffff0000) >> 16;
71	state->hblanks = (data & 0x0000ffff);
72	state->hz = nvkm_rd32(device, 0x68200c + hoff);
73
74	data = nvkm_rd32(device, 0x682004 + hoff);
75	switch ((data & 0x000000f0) >> 4) {
76	case 5: state->or.depth = 30; break;
77	case 4: state->or.depth = 24; break;
78	case 1: state->or.depth = 18; break;
79	default:
80		state->or.depth = 18;
81		WARN_ON(1);
82		break;
83	}
84}
85
86static const struct nvkm_head_func
87gv100_head = {
88	.state = gv100_head_state,
89	.rgpos = gv100_head_rgpos,
90	.rgclk = gf119_head_rgclk,
91	.vblank_get = gv100_head_vblank_get,
92	.vblank_put = gv100_head_vblank_put,
93};
94
95int
96gv100_head_new(struct nvkm_disp *disp, int id)
97{
98	struct nvkm_device *device = disp->engine.subdev.device;
99	if (!(nvkm_rd32(device, 0x610060) & (0x00000001 << id)))
100		return 0;
101	return nvkm_head_new_(&gv100_head, disp, id);
102}
103
104int
105gv100_head_cnt(struct nvkm_disp *disp, unsigned long *pmask)
106{
107	struct nvkm_device *device = disp->engine.subdev.device;
108	*pmask = nvkm_rd32(device, 0x610060) & 0x000000ff;
109	return nvkm_rd32(device, 0x610074) & 0x0000000f;
110}
111