1 /* $NetBSD: nouveau_nvkm_subdev_devinit_base.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 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
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_devinit_base.c,v 1.3 2021/12/18 23:45:39 riastradh Exp $");
28
29 #include "priv.h"
30
31 #include <core/option.h>
32 #include <subdev/vga.h>
33
34 u32
nvkm_devinit_mmio(struct nvkm_devinit * init,u32 addr)35 nvkm_devinit_mmio(struct nvkm_devinit *init, u32 addr)
36 {
37 if (init->func->mmio)
38 addr = init->func->mmio(init, addr);
39 return addr;
40 }
41
42 int
nvkm_devinit_pll_set(struct nvkm_devinit * init,u32 type,u32 khz)43 nvkm_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 khz)
44 {
45 return init->func->pll_set(init, type, khz);
46 }
47
48 void
nvkm_devinit_meminit(struct nvkm_devinit * init)49 nvkm_devinit_meminit(struct nvkm_devinit *init)
50 {
51 if (init->func->meminit)
52 init->func->meminit(init);
53 }
54
55 u64
nvkm_devinit_disable(struct nvkm_devinit * init)56 nvkm_devinit_disable(struct nvkm_devinit *init)
57 {
58 if (init && init->func->disable)
59 return init->func->disable(init);
60 return 0;
61 }
62
63 int
nvkm_devinit_post(struct nvkm_devinit * init,u64 * disable)64 nvkm_devinit_post(struct nvkm_devinit *init, u64 *disable)
65 {
66 int ret = 0;
67 if (init && init->func->post)
68 ret = init->func->post(init, init->post);
69 *disable = nvkm_devinit_disable(init);
70 return ret;
71 }
72
73 static int
nvkm_devinit_fini(struct nvkm_subdev * subdev,bool suspend)74 nvkm_devinit_fini(struct nvkm_subdev *subdev, bool suspend)
75 {
76 struct nvkm_devinit *init = nvkm_devinit(subdev);
77 /* force full reinit on resume */
78 if (suspend)
79 init->post = true;
80 return 0;
81 }
82
83 static int
nvkm_devinit_preinit(struct nvkm_subdev * subdev)84 nvkm_devinit_preinit(struct nvkm_subdev *subdev)
85 {
86 struct nvkm_devinit *init = nvkm_devinit(subdev);
87
88 if (init->func->preinit)
89 init->func->preinit(init);
90
91 /* Override the post flag during the first call if NvForcePost is set */
92 if (init->force_post) {
93 init->post = init->force_post;
94 init->force_post = false;
95 }
96
97 /* unlock the extended vga crtc regs */
98 nvkm_lockvgac(subdev->device, false);
99 return 0;
100 }
101
102 static int
nvkm_devinit_init(struct nvkm_subdev * subdev)103 nvkm_devinit_init(struct nvkm_subdev *subdev)
104 {
105 struct nvkm_devinit *init = nvkm_devinit(subdev);
106 if (init->func->init)
107 init->func->init(init);
108 return 0;
109 }
110
111 static void *
nvkm_devinit_dtor(struct nvkm_subdev * subdev)112 nvkm_devinit_dtor(struct nvkm_subdev *subdev)
113 {
114 struct nvkm_devinit *init = nvkm_devinit(subdev);
115 void *data = init;
116
117 if (init->func->dtor)
118 data = init->func->dtor(init);
119
120 /* lock crtc regs */
121 nvkm_lockvgac(subdev->device, true);
122 return data;
123 }
124
125 static const struct nvkm_subdev_func
126 nvkm_devinit = {
127 .dtor = nvkm_devinit_dtor,
128 .preinit = nvkm_devinit_preinit,
129 .init = nvkm_devinit_init,
130 .fini = nvkm_devinit_fini,
131 };
132
133 void
nvkm_devinit_ctor(const struct nvkm_devinit_func * func,struct nvkm_device * device,int index,struct nvkm_devinit * init)134 nvkm_devinit_ctor(const struct nvkm_devinit_func *func,
135 struct nvkm_device *device, int index,
136 struct nvkm_devinit *init)
137 {
138 nvkm_subdev_ctor(&nvkm_devinit, device, index, &init->subdev);
139 init->func = func;
140 init->force_post = nvkm_boolopt(device->cfgopt, "NvForcePost", false);
141 }
142