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
|
/*
* Copyright 2014 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"
#include <subdev/fb.h>
int
nvkm_ltc_tags_alloc(struct nvkm_ltc *ltc, u32 n, struct nvkm_mm_node **pnode)
{
int ret = nvkm_mm_head(<c->tags, 0, 1, n, n, 1, pnode);
if (ret)
*pnode = NULL;
return ret;
}
void
nvkm_ltc_tags_free(struct nvkm_ltc *ltc, struct nvkm_mm_node **pnode)
{
nvkm_mm_free(<c->tags, pnode);
}
void
nvkm_ltc_tags_clear(struct nvkm_ltc *ltc, u32 first, u32 count)
{
const u32 limit = first + count - 1;
BUG_ON((first > limit) || (limit >= ltc->num_tags));
ltc->func->cbc_clear(ltc, first, limit);
ltc->func->cbc_wait(ltc);
}
int
nvkm_ltc_zbc_color_get(struct nvkm_ltc *ltc, int index, const u32 color[4])
{
memcpy(ltc->zbc_color[index], color, sizeof(ltc->zbc_color[index]));
ltc->func->zbc_clear_color(ltc, index, color);
return index;
}
int
nvkm_ltc_zbc_depth_get(struct nvkm_ltc *ltc, int index, const u32 depth)
{
ltc->zbc_depth[index] = depth;
ltc->func->zbc_clear_depth(ltc, index, depth);
return index;
}
static void
nvkm_ltc_intr(struct nvkm_subdev *subdev)
{
struct nvkm_ltc *ltc = nvkm_ltc(subdev);
ltc->func->intr(ltc);
}
static int
nvkm_ltc_oneinit(struct nvkm_subdev *subdev)
{
struct nvkm_ltc *ltc = nvkm_ltc(subdev);
return ltc->func->oneinit(ltc);
}
static int
nvkm_ltc_init(struct nvkm_subdev *subdev)
{
struct nvkm_ltc *ltc = nvkm_ltc(subdev);
int i;
for (i = ltc->zbc_min; i <= ltc->zbc_max; i++) {
ltc->func->zbc_clear_color(ltc, i, ltc->zbc_color[i]);
ltc->func->zbc_clear_depth(ltc, i, ltc->zbc_depth[i]);
}
ltc->func->init(ltc);
return 0;
}
static void *
nvkm_ltc_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_ltc *ltc = nvkm_ltc(subdev);
struct nvkm_ram *ram = ltc->subdev.device->fb->ram;
nvkm_mm_fini(<c->tags);
if (ram)
nvkm_mm_free(&ram->vram, <c->tag_ram);
return ltc;
}
static const struct nvkm_subdev_func
nvkm_ltc = {
.dtor = nvkm_ltc_dtor,
.oneinit = nvkm_ltc_oneinit,
.init = nvkm_ltc_init,
.intr = nvkm_ltc_intr,
};
int
nvkm_ltc_new_(const struct nvkm_ltc_func *func, struct nvkm_device *device,
int index, struct nvkm_ltc **pltc)
{
struct nvkm_ltc *ltc;
if (!(ltc = *pltc = kzalloc(sizeof(*ltc), GFP_KERNEL)))
return -ENOMEM;
nvkm_subdev_ctor(&nvkm_ltc, device, index, 0, <c->subdev);
ltc->func = func;
ltc->zbc_min = 1; /* reserve 0 for disabled */
ltc->zbc_max = min(func->zbc, NVKM_LTC_MAX_ZBC_CNT) - 1;
return 0;
}
|
