1 /*
2 * Copyright 2013 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
25 #include <subdev/bios.h>
26 #include <subdev/bios/bit.h>
27 #include <subdev/bios/boost.h>
28
29 u16
nvbios_boostTe(struct nouveau_bios * bios,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,u8 * snr,u8 * ssz)30 nvbios_boostTe(struct nouveau_bios *bios,
31 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
32 {
33 struct bit_entry bit_P;
34 u16 boost = 0x0000;
35
36 if (!bit_entry(bios, 'P', &bit_P)) {
37 if (bit_P.version == 2)
38 boost = nv_ro16(bios, bit_P.offset + 0x30);
39
40 if (boost) {
41 *ver = nv_ro08(bios, boost + 0);
42 switch (*ver) {
43 case 0x11:
44 *hdr = nv_ro08(bios, boost + 1);
45 *cnt = nv_ro08(bios, boost + 5);
46 *len = nv_ro08(bios, boost + 2);
47 *snr = nv_ro08(bios, boost + 4);
48 *ssz = nv_ro08(bios, boost + 3);
49 return boost;
50 default:
51 break;
52 }
53 }
54 }
55
56 return 0x0000;
57 }
58
59 u16
nvbios_boostEe(struct nouveau_bios * bios,int idx,u8 * ver,u8 * hdr,u8 * cnt,u8 * len)60 nvbios_boostEe(struct nouveau_bios *bios, int idx,
61 u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
62 {
63 u8 snr, ssz;
64 u16 data = nvbios_boostTe(bios, ver, hdr, cnt, len, &snr, &ssz);
65 if (data && idx < *cnt) {
66 data = data + *hdr + (idx * (*len + (snr * ssz)));
67 *hdr = *len;
68 *cnt = snr;
69 *len = ssz;
70 return data;
71 }
72 return 0x0000;
73 }
74
75 u16
nvbios_boostEp(struct nouveau_bios * bios,int idx,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,struct nvbios_boostE * info)76 nvbios_boostEp(struct nouveau_bios *bios, int idx,
77 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
78 {
79 u16 data = nvbios_boostEe(bios, idx, ver, hdr, cnt, len);
80 memset(info, 0x00, sizeof(*info));
81 if (data) {
82 info->pstate = (nv_ro16(bios, data + 0x00) & 0x01e0) >> 5;
83 info->min = nv_ro16(bios, data + 0x02) * 1000;
84 info->max = nv_ro16(bios, data + 0x04) * 1000;
85 }
86 return data;
87 }
88
89 u16
nvbios_boostEm(struct nouveau_bios * bios,u8 pstate,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,struct nvbios_boostE * info)90 nvbios_boostEm(struct nouveau_bios *bios, u8 pstate,
91 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
92 {
93 u32 data, idx = 0;
94 while ((data = nvbios_boostEp(bios, idx++, ver, hdr, cnt, len, info))) {
95 if (info->pstate == pstate)
96 break;
97 }
98 return data;
99 }
100
101 u16
nvbios_boostSe(struct nouveau_bios * bios,int idx,u16 data,u8 * ver,u8 * hdr,u8 cnt,u8 len)102 nvbios_boostSe(struct nouveau_bios *bios, int idx,
103 u16 data, u8 *ver, u8 *hdr, u8 cnt, u8 len)
104 {
105 if (data && idx < cnt) {
106 data = data + *hdr + (idx * len);
107 *hdr = len;
108 return data;
109 }
110 return 0x0000;
111 }
112
113 u16
nvbios_boostSp(struct nouveau_bios * bios,int idx,u16 data,u8 * ver,u8 * hdr,u8 cnt,u8 len,struct nvbios_boostS * info)114 nvbios_boostSp(struct nouveau_bios *bios, int idx,
115 u16 data, u8 *ver, u8 *hdr, u8 cnt, u8 len,
116 struct nvbios_boostS *info)
117 {
118 data = nvbios_boostSe(bios, idx, data, ver, hdr, cnt, len);
119 memset(info, 0x00, sizeof(*info));
120 if (data) {
121 info->domain = nv_ro08(bios, data + 0x00);
122 info->percent = nv_ro08(bios, data + 0x01);
123 info->min = nv_ro16(bios, data + 0x02) * 1000;
124 info->max = nv_ro16(bios, data + 0x04) * 1000;
125 }
126 return data;
127 }
128