Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / engine / disp / piornv50.c
1 /*
2  * Copyright 2012 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
23  */
24 #include "nv50.h"
25 #include "outpdp.h"
26
27 #include <core/client.h>
28 #include <subdev/i2c.h>
29 #include <subdev/timer.h>
30
31 #include <nvif/class.h>
32 #include <nvif/unpack.h>
33
34 /******************************************************************************
35  * TMDS
36  *****************************************************************************/
37
38 static int
39 nv50_pior_tmds_ctor(struct nvkm_object *parent,
40                     struct nvkm_object *engine,
41                     struct nvkm_oclass *oclass, void *info, u32 index,
42                     struct nvkm_object **pobject)
43 {
44         struct nvkm_i2c *i2c = nvkm_i2c(parent);
45         struct nvkm_output *outp;
46         int ret;
47
48         ret = nvkm_output_create(parent, engine, oclass, info, index, &outp);
49         *pobject = nv_object(outp);
50         if (ret)
51                 return ret;
52
53         outp->edid = i2c->find_type(i2c, NV_I2C_TYPE_EXTDDC(outp->info.extdev));
54         return 0;
55 }
56
57 struct nvkm_output_impl
58 nv50_pior_tmds_impl = {
59         .base.handle = DCB_OUTPUT_TMDS | 0x0100,
60         .base.ofuncs = &(struct nvkm_ofuncs) {
61                 .ctor = nv50_pior_tmds_ctor,
62                 .dtor = _nvkm_output_dtor,
63                 .init = _nvkm_output_init,
64                 .fini = _nvkm_output_fini,
65         },
66 };
67
68 /******************************************************************************
69  * DisplayPort
70  *****************************************************************************/
71
72 static int
73 nv50_pior_dp_pattern(struct nvkm_output_dp *outp, int pattern)
74 {
75         struct nvkm_i2c_port *port = outp->base.edid;
76         if (port && port->func->pattern)
77                 return port->func->pattern(port, pattern);
78         return port ? 0 : -ENODEV;
79 }
80
81 static int
82 nv50_pior_dp_lnk_pwr(struct nvkm_output_dp *outp, int nr)
83 {
84         return 0;
85 }
86
87 static int
88 nv50_pior_dp_lnk_ctl(struct nvkm_output_dp *outp, int nr, int bw, bool ef)
89 {
90         struct nvkm_i2c_port *port = outp->base.edid;
91         if (port && port->func->lnk_ctl)
92                 return port->func->lnk_ctl(port, nr, bw, ef);
93         return port ? 0 : -ENODEV;
94 }
95
96 static int
97 nv50_pior_dp_drv_ctl(struct nvkm_output_dp *outp, int ln, int vs, int pe, int pc)
98 {
99         struct nvkm_i2c_port *port = outp->base.edid;
100         if (port && port->func->drv_ctl)
101                 return port->func->drv_ctl(port, ln, vs, pe);
102         return port ? 0 : -ENODEV;
103 }
104
105 static int
106 nv50_pior_dp_ctor(struct nvkm_object *parent,
107                   struct nvkm_object *engine,
108                   struct nvkm_oclass *oclass, void *info, u32 index,
109                   struct nvkm_object **pobject)
110 {
111         struct nvkm_i2c *i2c = nvkm_i2c(parent);
112         struct nvkm_output_dp *outp;
113         int ret;
114
115         ret = nvkm_output_dp_create(parent, engine, oclass, info, index, &outp);
116         *pobject = nv_object(outp);
117         if (ret)
118                 return ret;
119
120         outp->base.edid = i2c->find_type(i2c, NV_I2C_TYPE_EXTAUX(
121                                          outp->base.info.extdev));
122         return 0;
123 }
124
125 struct nvkm_output_dp_impl
126 nv50_pior_dp_impl = {
127         .base.base.handle = DCB_OUTPUT_DP | 0x0010,
128         .base.base.ofuncs = &(struct nvkm_ofuncs) {
129                 .ctor = nv50_pior_dp_ctor,
130                 .dtor = _nvkm_output_dp_dtor,
131                 .init = _nvkm_output_dp_init,
132                 .fini = _nvkm_output_dp_fini,
133         },
134         .pattern = nv50_pior_dp_pattern,
135         .lnk_pwr = nv50_pior_dp_lnk_pwr,
136         .lnk_ctl = nv50_pior_dp_lnk_ctl,
137         .drv_ctl = nv50_pior_dp_drv_ctl,
138 };
139
140 /******************************************************************************
141  * General PIOR handling
142  *****************************************************************************/
143
144 int
145 nv50_pior_power(NV50_DISP_MTHD_V1)
146 {
147         const u32 soff = outp->or * 0x800;
148         union {
149                 struct nv50_disp_pior_pwr_v0 v0;
150         } *args = data;
151         u32 ctrl, type;
152         int ret;
153
154         nv_ioctl(object, "disp pior pwr size %d\n", size);
155         if (nvif_unpack(args->v0, 0, 0, false)) {
156                 nv_ioctl(object, "disp pior pwr vers %d state %d type %x\n",
157                          args->v0.version, args->v0.state, args->v0.type);
158                 if (args->v0.type > 0x0f)
159                         return -EINVAL;
160                 ctrl = !!args->v0.state;
161                 type = args->v0.type;
162         } else
163                 return ret;
164
165         nv_wait(priv, 0x61e004 + soff, 0x80000000, 0x00000000);
166         nv_mask(priv, 0x61e004 + soff, 0x80000101, 0x80000000 | ctrl);
167         nv_wait(priv, 0x61e004 + soff, 0x80000000, 0x00000000);
168         priv->pior.type[outp->or] = type;
169         return 0;
170 }