1 /*
2 * Copyright 2017 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 * Authors: Ben Skeggs <bskeggs@redhat.com>
23 */
24 #include "head.h"
25
26 static void
nv50_head_vblank_put(struct nvkm_head * head)27 nv50_head_vblank_put(struct nvkm_head *head)
28 {
29 struct nvkm_device *device = head->disp->engine.subdev.device;
30 nvkm_mask(device, 0x61002c, (4 << head->id), 0);
31 }
32
33 static void
nv50_head_vblank_get(struct nvkm_head * head)34 nv50_head_vblank_get(struct nvkm_head *head)
35 {
36 struct nvkm_device *device = head->disp->engine.subdev.device;
37 nvkm_mask(device, 0x61002c, (4 << head->id), (4 << head->id));
38 }
39
40 static void
nv50_head_rgclk(struct nvkm_head * head,int div)41 nv50_head_rgclk(struct nvkm_head *head, int div)
42 {
43 struct nvkm_device *device = head->disp->engine.subdev.device;
44 nvkm_mask(device, 0x614200 + (head->id * 0x800), 0x0000000f, div);
45 }
46
47 void
nv50_head_rgpos(struct nvkm_head * head,u16 * hline,u16 * vline)48 nv50_head_rgpos(struct nvkm_head *head, u16 *hline, u16 *vline)
49 {
50 struct nvkm_device *device = head->disp->engine.subdev.device;
51 const u32 hoff = head->id * 0x800;
52 /* vline read locks hline. */
53 *vline = nvkm_rd32(device, 0x616340 + hoff) & 0x0000ffff;
54 *hline = nvkm_rd32(device, 0x616344 + hoff) & 0x0000ffff;
55 }
56
57 static void
nv50_head_state(struct nvkm_head * head,struct nvkm_head_state * state)58 nv50_head_state(struct nvkm_head *head, struct nvkm_head_state *state)
59 {
60 struct nvkm_device *device = head->disp->engine.subdev.device;
61 const u32 hoff = head->id * 0x540 + (state == &head->arm) * 4;
62 u32 data;
63
64 data = nvkm_rd32(device, 0x610ae8 + hoff);
65 state->vblanke = (data & 0xffff0000) >> 16;
66 state->hblanke = (data & 0x0000ffff);
67 data = nvkm_rd32(device, 0x610af0 + hoff);
68 state->vblanks = (data & 0xffff0000) >> 16;
69 state->hblanks = (data & 0x0000ffff);
70 data = nvkm_rd32(device, 0x610af8 + hoff);
71 state->vtotal = (data & 0xffff0000) >> 16;
72 state->htotal = (data & 0x0000ffff);
73 data = nvkm_rd32(device, 0x610b00 + hoff);
74 state->vsynce = (data & 0xffff0000) >> 16;
75 state->hsynce = (data & 0x0000ffff);
76 state->hz = (nvkm_rd32(device, 0x610ad0 + hoff) & 0x003fffff) * 1000;
77 }
78
79 static const struct nvkm_head_func
80 nv50_head = {
81 .state = nv50_head_state,
82 .rgpos = nv50_head_rgpos,
83 .rgclk = nv50_head_rgclk,
84 .vblank_get = nv50_head_vblank_get,
85 .vblank_put = nv50_head_vblank_put,
86 };
87
88 int
nv50_head_new(struct nvkm_disp * disp,int id)89 nv50_head_new(struct nvkm_disp *disp, int id)
90 {
91 return nvkm_head_new_(&nv50_head, disp, id);
92 }
93
94 int
nv50_head_cnt(struct nvkm_disp * disp,unsigned long * pmask)95 nv50_head_cnt(struct nvkm_disp *disp, unsigned long *pmask)
96 {
97 *pmask = 3;
98 return 2;
99 }
100