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 #include <subdev/bios.h>
25 #include <subdev/bios/bit.h>
26 #include <subdev/bios/boost.h>
27
28 u32
nvbios_boostTe(struct nvkm_bios * bios,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,u8 * snr,u8 * ssz)29 nvbios_boostTe(struct nvkm_bios *bios,
30 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
31 {
32 struct bit_entry bit_P;
33 u32 boost = 0;
34
35 if (!bit_entry(bios, 'P', &bit_P)) {
36 if (bit_P.version == 2 && bit_P.length >= 0x34)
37 boost = nvbios_rd32(bios, bit_P.offset + 0x30);
38
39 if (boost) {
40 *ver = nvbios_rd08(bios, boost + 0);
41 switch (*ver) {
42 case 0x11:
43 *hdr = nvbios_rd08(bios, boost + 1);
44 *cnt = nvbios_rd08(bios, boost + 5);
45 *len = nvbios_rd08(bios, boost + 2);
46 *snr = nvbios_rd08(bios, boost + 4);
47 *ssz = nvbios_rd08(bios, boost + 3);
48 return boost;
49 default:
50 break;
51 }
52 }
53 }
54
55 return 0;
56 }
57
58 u32
nvbios_boostEe(struct nvkm_bios * bios,int idx,u8 * ver,u8 * hdr,u8 * cnt,u8 * len)59 nvbios_boostEe(struct nvkm_bios *bios, int idx,
60 u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
61 {
62 u8 snr, ssz;
63 u32 data = nvbios_boostTe(bios, ver, hdr, cnt, len, &snr, &ssz);
64 if (data && idx < *cnt) {
65 data = data + *hdr + (idx * (*len + (snr * ssz)));
66 *hdr = *len;
67 *cnt = snr;
68 *len = ssz;
69 return data;
70 }
71 return 0;
72 }
73
74 u32
nvbios_boostEp(struct nvkm_bios * bios,int idx,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,struct nvbios_boostE * info)75 nvbios_boostEp(struct nvkm_bios *bios, int idx,
76 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
77 {
78 u32 data = nvbios_boostEe(bios, idx, ver, hdr, cnt, len);
79 memset(info, 0x00, sizeof(*info));
80 if (data) {
81 info->pstate = (nvbios_rd16(bios, data + 0x00) & 0x01e0) >> 5;
82 info->min = nvbios_rd16(bios, data + 0x02) * 1000;
83 info->max = nvbios_rd16(bios, data + 0x04) * 1000;
84 }
85 return data;
86 }
87
88 u32
nvbios_boostEm(struct nvkm_bios * bios,u8 pstate,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,struct nvbios_boostE * info)89 nvbios_boostEm(struct nvkm_bios *bios, u8 pstate,
90 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
91 {
92 u32 data, idx = 0;
93 while ((data = nvbios_boostEp(bios, idx++, ver, hdr, cnt, len, info))) {
94 if (info->pstate == pstate)
95 break;
96 }
97 return data;
98 }
99
100 u32
nvbios_boostSe(struct nvkm_bios * bios,int idx,u32 data,u8 * ver,u8 * hdr,u8 cnt,u8 len)101 nvbios_boostSe(struct nvkm_bios *bios, int idx,
102 u32 data, u8 *ver, u8 *hdr, u8 cnt, u8 len)
103 {
104 if (data && idx < cnt) {
105 data = data + *hdr + (idx * len);
106 *hdr = len;
107 return data;
108 }
109 return 0;
110 }
111
112 u32
nvbios_boostSp(struct nvkm_bios * bios,int idx,u32 data,u8 * ver,u8 * hdr,u8 cnt,u8 len,struct nvbios_boostS * info)113 nvbios_boostSp(struct nvkm_bios *bios, int idx,
114 u32 data, u8 *ver, u8 *hdr, u8 cnt, u8 len,
115 struct nvbios_boostS *info)
116 {
117 data = nvbios_boostSe(bios, idx, data, ver, hdr, cnt, len);
118 memset(info, 0x00, sizeof(*info));
119 if (data) {
120 info->domain = nvbios_rd08(bios, data + 0x00);
121 info->percent = nvbios_rd08(bios, data + 0x01);
122 info->min = nvbios_rd16(bios, data + 0x02) * 1000;
123 info->max = nvbios_rd16(bios, data + 0x04) * 1000;
124 }
125 return data;
126 }
127