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
29 static void
gv100_head_vblank_put(struct nvkm_head * head)30 gv100_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
36 static void
gv100_head_vblank_get(struct nvkm_head * head)37 gv100_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
43 static void
gv100_head_rgpos(struct nvkm_head * head,u16 * hline,u16 * vline)44 gv100_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
53 static void
gv100_head_state(struct nvkm_head * head,struct nvkm_head_state * state)54 gv100_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
86 static const struct nvkm_head_func
87 gv100_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
95 int
gv100_head_new(struct nvkm_disp * disp,int id)96 gv100_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
104 int
gv100_head_cnt(struct nvkm_disp * disp,unsigned long * pmask)105 gv100_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