]>
Commit | Line | Data |
---|---|---|
95484b57 BS |
1 | /* |
2 | * Copyright 2014 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 | */ | |
95484b57 BS |
24 | #include "priv.h" |
25 | ||
70bc7182 | 26 | #include <subdev/fb.h> |
95484b57 | 27 | |
70bc7182 BS |
28 | int |
29 | nvkm_ltc_tags_alloc(struct nvkm_ltc *ltc, u32 n, struct nvkm_mm_node **pnode) | |
30 | { | |
31 | int ret = nvkm_mm_head(<c->tags, 0, 1, n, n, 1, pnode); | |
95484b57 BS |
32 | if (ret) |
33 | *pnode = NULL; | |
95484b57 BS |
34 | return ret; |
35 | } | |
36 | ||
70bc7182 BS |
37 | void |
38 | nvkm_ltc_tags_free(struct nvkm_ltc *ltc, struct nvkm_mm_node **pnode) | |
95484b57 | 39 | { |
c7750cfb | 40 | nvkm_mm_free(<c->tags, pnode); |
95484b57 BS |
41 | } |
42 | ||
70bc7182 BS |
43 | void |
44 | nvkm_ltc_tags_clear(struct nvkm_ltc *ltc, u32 first, u32 count) | |
95484b57 | 45 | { |
95484b57 BS |
46 | const u32 limit = first + count - 1; |
47 | ||
c7750cfb | 48 | BUG_ON((first > limit) || (limit >= ltc->num_tags)); |
95484b57 | 49 | |
70bc7182 BS |
50 | ltc->func->cbc_clear(ltc, first, limit); |
51 | ltc->func->cbc_wait(ltc); | |
95484b57 BS |
52 | } |
53 | ||
70bc7182 BS |
54 | int |
55 | nvkm_ltc_zbc_color_get(struct nvkm_ltc *ltc, int index, const u32 color[4]) | |
f38fdb6a | 56 | { |
c7750cfb | 57 | memcpy(ltc->zbc_color[index], color, sizeof(ltc->zbc_color[index])); |
70bc7182 | 58 | ltc->func->zbc_clear_color(ltc, index, color); |
f38fdb6a BS |
59 | return index; |
60 | } | |
61 | ||
70bc7182 BS |
62 | int |
63 | nvkm_ltc_zbc_depth_get(struct nvkm_ltc *ltc, int index, const u32 depth) | |
f38fdb6a | 64 | { |
c7750cfb | 65 | ltc->zbc_depth[index] = depth; |
70bc7182 | 66 | ltc->func->zbc_clear_depth(ltc, index, depth); |
f38fdb6a BS |
67 | return index; |
68 | } | |
69 | ||
38a8fc78 AC |
70 | void |
71 | nvkm_ltc_invalidate(struct nvkm_ltc *ltc) | |
72 | { | |
73 | if (ltc->func->invalidate) | |
74 | ltc->func->invalidate(ltc); | |
75 | } | |
76 | ||
77 | void | |
78 | nvkm_ltc_flush(struct nvkm_ltc *ltc) | |
79 | { | |
80 | if (ltc->func->flush) | |
81 | ltc->func->flush(ltc); | |
82 | } | |
83 | ||
70bc7182 BS |
84 | static void |
85 | nvkm_ltc_intr(struct nvkm_subdev *subdev) | |
f38fdb6a | 86 | { |
70bc7182 BS |
87 | struct nvkm_ltc *ltc = nvkm_ltc(subdev); |
88 | ltc->func->intr(ltc); | |
89 | } | |
f38fdb6a | 90 | |
70bc7182 BS |
91 | static int |
92 | nvkm_ltc_oneinit(struct nvkm_subdev *subdev) | |
93 | { | |
94 | struct nvkm_ltc *ltc = nvkm_ltc(subdev); | |
95 | return ltc->func->oneinit(ltc); | |
96 | } | |
97 | ||
98 | static int | |
99 | nvkm_ltc_init(struct nvkm_subdev *subdev) | |
100 | { | |
101 | struct nvkm_ltc *ltc = nvkm_ltc(subdev); | |
102 | int i; | |
f38fdb6a | 103 | |
70bc7182 BS |
104 | for (i = ltc->zbc_min; i <= ltc->zbc_max; i++) { |
105 | ltc->func->zbc_clear_color(ltc, i, ltc->zbc_color[i]); | |
106 | ltc->func->zbc_clear_depth(ltc, i, ltc->zbc_depth[i]); | |
f38fdb6a BS |
107 | } |
108 | ||
70bc7182 | 109 | ltc->func->init(ltc); |
f38fdb6a BS |
110 | return 0; |
111 | } | |
112 | ||
70bc7182 BS |
113 | static void * |
114 | nvkm_ltc_dtor(struct nvkm_subdev *subdev) | |
115 | { | |
116 | struct nvkm_ltc *ltc = nvkm_ltc(subdev); | |
117 | struct nvkm_ram *ram = ltc->subdev.device->fb->ram; | |
118 | nvkm_mm_fini(<c->tags); | |
119 | if (ram) | |
120 | nvkm_mm_free(&ram->vram, <c->tag_ram); | |
121 | return ltc; | |
122 | } | |
123 | ||
124 | static const struct nvkm_subdev_func | |
125 | nvkm_ltc = { | |
126 | .dtor = nvkm_ltc_dtor, | |
127 | .oneinit = nvkm_ltc_oneinit, | |
128 | .init = nvkm_ltc_init, | |
129 | .intr = nvkm_ltc_intr, | |
130 | }; | |
131 | ||
95484b57 | 132 | int |
70bc7182 BS |
133 | nvkm_ltc_new_(const struct nvkm_ltc_func *func, struct nvkm_device *device, |
134 | int index, struct nvkm_ltc **pltc) | |
95484b57 | 135 | { |
70bc7182 | 136 | struct nvkm_ltc *ltc; |
95484b57 | 137 | |
70bc7182 BS |
138 | if (!(ltc = *pltc = kzalloc(sizeof(*ltc), GFP_KERNEL))) |
139 | return -ENOMEM; | |
140 | ||
141 | nvkm_subdev_ctor(&nvkm_ltc, device, index, 0, <c->subdev); | |
142 | ltc->func = func; | |
143 | ltc->zbc_min = 1; /* reserve 0 for disabled */ | |
144 | ltc->zbc_max = min(func->zbc, NVKM_LTC_MAX_ZBC_CNT) - 1; | |
95484b57 BS |
145 | return 0; |
146 | } |