1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
* Copyright 2013 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs <bskeggs@redhat.com>
*/
#include "priv.h"
struct nvkm_hwsq {
struct nvkm_subdev *subdev;
u32 addr;
u32 data;
struct {
u8 data[512];
u16 size;
} c;
};
static void
hwsq_cmd(struct nvkm_hwsq *hwsq, int size, u8 data[])
{
memcpy(&hwsq->c.data[hwsq->c.size], data, size * sizeof(data[0]));
hwsq->c.size += size;
}
int
nvkm_hwsq_init(struct nvkm_subdev *subdev, struct nvkm_hwsq **phwsq)
{
struct nvkm_hwsq *hwsq;
hwsq = *phwsq = kmalloc(sizeof(*hwsq), GFP_KERNEL);
if (hwsq) {
hwsq->subdev = subdev;
hwsq->addr = ~0;
hwsq->data = ~0;
memset(hwsq->c.data, 0x7f, sizeof(hwsq->c.data));
hwsq->c.size = 0;
}
return hwsq ? 0 : -ENOMEM;
}
int
nvkm_hwsq_fini(struct nvkm_hwsq **phwsq, bool exec)
{
struct nvkm_hwsq *hwsq = *phwsq;
int ret = 0, i;
if (hwsq) {
struct nvkm_subdev *subdev = hwsq->subdev;
struct nvkm_bus *bus = subdev->device->bus;
hwsq->c.size = (hwsq->c.size + 4) / 4;
if (hwsq->c.size <= bus->func->hwsq_size) {
if (exec)
ret = bus->func->hwsq_exec(bus,
(u32 *)hwsq->c.data,
hwsq->c.size);
if (ret)
nvkm_error(subdev, "hwsq exec failed: %d\n", ret);
} else {
nvkm_error(subdev, "hwsq ucode too large\n");
ret = -ENOSPC;
}
for (i = 0; ret && i < hwsq->c.size; i++)
nvkm_error(subdev, "\t%08x\n", ((u32 *)hwsq->c.data)[i]);
*phwsq = NULL;
kfree(hwsq);
}
return ret;
}
void
nvkm_hwsq_wr32(struct nvkm_hwsq *hwsq, u32 addr, u32 data)
{
nvkm_debug(hwsq->subdev, "R[%06x] = %08x\n", addr, data);
if (hwsq->data != data) {
if ((data & 0xffff0000) != (hwsq->data & 0xffff0000)) {
hwsq_cmd(hwsq, 5, (u8[]){ 0xe2, data, data >> 8,
data >> 16, data >> 24 });
} else {
hwsq_cmd(hwsq, 3, (u8[]){ 0x42, data, data >> 8 });
}
}
if ((addr & 0xffff0000) != (hwsq->addr & 0xffff0000)) {
hwsq_cmd(hwsq, 5, (u8[]){ 0xe0, addr, addr >> 8,
addr >> 16, addr >> 24 });
} else {
hwsq_cmd(hwsq, 3, (u8[]){ 0x40, addr, addr >> 8 });
}
hwsq->addr = addr;
hwsq->data = data;
}
void
nvkm_hwsq_setf(struct nvkm_hwsq *hwsq, u8 flag, int data)
{
nvkm_debug(hwsq->subdev, " FLAG[%02x] = %d\n", flag, data);
flag += 0x80;
if (data >= 0)
flag += 0x20;
if (data >= 1)
flag += 0x20;
hwsq_cmd(hwsq, 1, (u8[]){ flag });
}
void
nvkm_hwsq_wait(struct nvkm_hwsq *hwsq, u8 flag, u8 data)
{
nvkm_debug(hwsq->subdev, " WAIT[%02x] = %d\n", flag, data);
hwsq_cmd(hwsq, 3, (u8[]){ 0x5f, flag, data });
}
void
nvkm_hwsq_wait_vblank(struct nvkm_hwsq *hwsq)
{
struct nvkm_subdev *subdev = hwsq->subdev;
struct nvkm_device *device = subdev->device;
u32 heads, x, y, px = 0;
int i, head_sync;
heads = nvkm_rd32(device, 0x610050);
for (i = 0; i < 2; i++) {
/* Heuristic: sync to head with biggest resolution */
if (heads & (2 << (i << 3))) {
x = nvkm_rd32(device, 0x610b40 + (0x540 * i));
y = (x & 0xffff0000) >> 16;
x &= 0x0000ffff;
if ((x * y) > px) {
px = (x * y);
head_sync = i;
}
}
}
if (px == 0) {
nvkm_debug(subdev, "WAIT VBLANK !NO ACTIVE HEAD\n");
return;
}
nvkm_debug(subdev, "WAIT VBLANK HEAD%d\n", head_sync);
nvkm_hwsq_wait(hwsq, head_sync ? 0x3 : 0x1, 0x0);
nvkm_hwsq_wait(hwsq, head_sync ? 0x3 : 0x1, 0x1);
}
void
nvkm_hwsq_nsec(struct nvkm_hwsq *hwsq, u32 nsec)
{
u8 shift = 0, usec = nsec / 1000;
while (usec & ~3) {
usec >>= 2;
shift++;
}
nvkm_debug(hwsq->subdev, " DELAY = %d ns\n", nsec);
hwsq_cmd(hwsq, 1, (u8[]){ 0x00 | (shift << 2) | usec });
}
|
