These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / engine / disp / dacnv50.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 "outp.h"
26
27 #include <core/client.h>
28 #include <subdev/timer.h>
29
30 #include <nvif/class.h>
31 #include <nvif/unpack.h>
32
33 int
34 nv50_dac_power(NV50_DISP_MTHD_V1)
35 {
36         struct nvkm_device *device = disp->base.engine.subdev.device;
37         const u32 doff = outp->or * 0x800;
38         union {
39                 struct nv50_disp_dac_pwr_v0 v0;
40         } *args = data;
41         u32 stat;
42         int ret;
43
44         nvif_ioctl(object, "disp dac pwr size %d\n", size);
45         if (nvif_unpack(args->v0, 0, 0, false)) {
46                 nvif_ioctl(object, "disp dac pwr vers %d state %d data %d "
47                                    "vsync %d hsync %d\n",
48                            args->v0.version, args->v0.state, args->v0.data,
49                            args->v0.vsync, args->v0.hsync);
50                 stat  = 0x00000040 * !args->v0.state;
51                 stat |= 0x00000010 * !args->v0.data;
52                 stat |= 0x00000004 * !args->v0.vsync;
53                 stat |= 0x00000001 * !args->v0.hsync;
54         } else
55                 return ret;
56
57         nvkm_msec(device, 2000,
58                 if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
59                         break;
60         );
61         nvkm_mask(device, 0x61a004 + doff, 0xc000007f, 0x80000000 | stat);
62         nvkm_msec(device, 2000,
63                 if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
64                         break;
65         );
66         return 0;
67 }
68
69 int
70 nv50_dac_sense(NV50_DISP_MTHD_V1)
71 {
72         struct nvkm_subdev *subdev = &disp->base.engine.subdev;
73         struct nvkm_device *device = subdev->device;
74         union {
75                 struct nv50_disp_dac_load_v0 v0;
76         } *args = data;
77         const u32 doff = outp->or * 0x800;
78         u32 loadval;
79         int ret;
80
81         nvif_ioctl(object, "disp dac load size %d\n", size);
82         if (nvif_unpack(args->v0, 0, 0, false)) {
83                 nvif_ioctl(object, "disp dac load vers %d data %08x\n",
84                            args->v0.version, args->v0.data);
85                 if (args->v0.data & 0xfff00000)
86                         return -EINVAL;
87                 loadval = args->v0.data;
88         } else
89                 return ret;
90
91         nvkm_mask(device, 0x61a004 + doff, 0x807f0000, 0x80150000);
92         nvkm_msec(device, 2000,
93                 if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
94                         break;
95         );
96
97         nvkm_wr32(device, 0x61a00c + doff, 0x00100000 | loadval);
98         mdelay(9);
99         udelay(500);
100         loadval = nvkm_mask(device, 0x61a00c + doff, 0xffffffff, 0x00000000);
101
102         nvkm_mask(device, 0x61a004 + doff, 0x807f0000, 0x80550000);
103         nvkm_msec(device, 2000,
104                 if (!(nvkm_rd32(device, 0x61a004 + doff) & 0x80000000))
105                         break;
106         );
107
108         nvkm_debug(subdev, "DAC%d sense: %08x\n", outp->or, loadval);
109         if (!(loadval & 0x80000000))
110                 return -ETIMEDOUT;
111
112         args->v0.load = (loadval & 0x38000000) >> 27;
113         return 0;
114 }
115
116 static const struct nvkm_output_func
117 nv50_dac_output_func = {
118 };
119
120 int
121 nv50_dac_output_new(struct nvkm_disp *disp, int index,
122                     struct dcb_output *dcbE, struct nvkm_output **poutp)
123 {
124         return nvkm_output_new_(&nv50_dac_output_func, disp,
125                                 index, dcbE, poutp);
126 }