1 /* $NetBSD: nouveau_nvkm_engine_disp_headnv50.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $ */
2
3 /*
4 * Copyright 2017 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_headnv50.c,v 1.2 2021/12/18 23:45:35 riastradh Exp $");
28
29 #include "head.h"
30
31 static void
nv50_head_vblank_put(struct nvkm_head * head)32 nv50_head_vblank_put(struct nvkm_head *head)
33 {
34 struct nvkm_device *device = head->disp->engine.subdev.device;
35 nvkm_mask(device, 0x61002c, (4 << head->id), 0);
36 }
37
38 static void
nv50_head_vblank_get(struct nvkm_head * head)39 nv50_head_vblank_get(struct nvkm_head *head)
40 {
41 struct nvkm_device *device = head->disp->engine.subdev.device;
42 nvkm_mask(device, 0x61002c, (4 << head->id), (4 << head->id));
43 }
44
45 static void
nv50_head_rgclk(struct nvkm_head * head,int div)46 nv50_head_rgclk(struct nvkm_head *head, int div)
47 {
48 struct nvkm_device *device = head->disp->engine.subdev.device;
49 nvkm_mask(device, 0x614200 + (head->id * 0x800), 0x0000000f, div);
50 }
51
52 void
nv50_head_rgpos(struct nvkm_head * head,u16 * hline,u16 * vline)53 nv50_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline)
54 {
55 struct nvkm_device *device = head->disp->engine.subdev.device;
56 const u32 hoff = head->id * 0x800;
57 /* vline read locks hline. */
58 *vline = nvkm_rd32(device, 0x616340 + hoff) & 0x0000ffff;
59 *hline = nvkm_rd32(device, 0x616344 + hoff) & 0x0000ffff;
60 }
61
62 static void
nv50_head_state(struct nvkm_head * head,struct nvkm_head_state * state)63 nv50_head_state(struct nvkm_head *head, struct nvkm_head_state *state)
64 {
65 struct nvkm_device *device = head->disp->engine.subdev.device;
66 const u32 hoff = head->id * 0x540 + (state == &head->arm) * 4;
67 u32 data;
68
69 data = nvkm_rd32(device, 0x610ae8 + hoff);
70 state->vblanke = (data & 0xffff0000) >> 16;
71 state->hblanke = (data & 0x0000ffff);
72 data = nvkm_rd32(device, 0x610af0 + hoff);
73 state->vblanks = (data & 0xffff0000) >> 16;
74 state->hblanks = (data & 0x0000ffff);
75 data = nvkm_rd32(device, 0x610af8 + hoff);
76 state->vtotal = (data & 0xffff0000) >> 16;
77 state->htotal = (data & 0x0000ffff);
78 data = nvkm_rd32(device, 0x610b00 + hoff);
79 state->vsynce = (data & 0xffff0000) >> 16;
80 state->hsynce = (data & 0x0000ffff);
81 state->hz = (nvkm_rd32(device, 0x610ad0 + hoff) & 0x003fffff) * 1000;
82 }
83
84 static const struct nvkm_head_func
85 nv50_head = {
86 .state = nv50_head_state,
87 .rgpos = nv50_head_rgpos,
88 .rgclk = nv50_head_rgclk,
89 .vblank_get = nv50_head_vblank_get,
90 .vblank_put = nv50_head_vblank_put,
91 };
92
93 int
nv50_head_new(struct nvkm_disp * disp,int id)94 nv50_head_new(struct nvkm_disp *disp, int id)
95 {
96 return nvkm_head_new_(&nv50_head, disp, id);
97 }
98
99 int
nv50_head_cnt(struct nvkm_disp * disp,unsigned long * pmask)100 nv50_head_cnt(struct nvkm_disp *disp, unsigned long *pmask)
101 {
102 *pmask = 3;
103 return 2;
104 }
105