1/* $NetBSD: nouveau_subdev_bios_boost.c,v 1.1.1.1 2014/08/06 12:36:28 riastradh Exp $ */
2
3/*
4 * Copyright 2013 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
27#include <sys/cdefs.h>
28__KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_bios_boost.c,v 1.1.1.1 2014/08/06 12:36:28 riastradh Exp $");
29
30#include <subdev/bios.h>
31#include <subdev/bios/bit.h>
32#include <subdev/bios/boost.h>
33
34u16
35nvbios_boostTe(struct nouveau_bios *bios,
36 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
37{
38 struct bit_entry bit_P;
39 u16 boost = 0x0000;
40
41 if (!bit_entry(bios, 'P', &bit_P)) {
42 if (bit_P.version == 2)
43 boost = nv_ro16(bios, bit_P.offset + 0x30);
44
45 if (boost) {
46 *ver = nv_ro08(bios, boost + 0);
47 switch (*ver) {
48 case 0x11:
49 *hdr = nv_ro08(bios, boost + 1);
50 *cnt = nv_ro08(bios, boost + 5);
51 *len = nv_ro08(bios, boost + 2);
52 *snr = nv_ro08(bios, boost + 4);
53 *ssz = nv_ro08(bios, boost + 3);
54 return boost;
55 default:
56 break;
57 }
58 }
59 }
60
61 return 0x0000;
62}
63
64u16
65nvbios_boostEe(struct nouveau_bios *bios, int idx,
66 u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
67{
68 u8 snr, ssz;
69 u16 data = nvbios_boostTe(bios, ver, hdr, cnt, len, &snr, &ssz);
70 if (data && idx < *cnt) {
71 data = data + *hdr + (idx * (*len + (snr * ssz)));
72 *hdr = *len;
73 *cnt = snr;
74 *len = ssz;
75 return data;
76 }
77 return 0x0000;
78}
79
80u16
81nvbios_boostEp(struct nouveau_bios *bios, int idx,
82 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
83{
84 u16 data = nvbios_boostEe(bios, idx, ver, hdr, cnt, len);
85 memset(info, 0x00, sizeof(*info));
86 if (data) {
87 info->pstate = (nv_ro16(bios, data + 0x00) & 0x01e0) >> 5;
88 info->min = nv_ro16(bios, data + 0x02) * 1000;
89 info->max = nv_ro16(bios, data + 0x04) * 1000;
90 }
91 return data;
92}
93
94u16
95nvbios_boostEm(struct nouveau_bios *bios, u8 pstate,
96 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
97{
98 u32 data, idx = 0;
99 while ((data = nvbios_boostEp(bios, idx++, ver, hdr, cnt, len, info))) {
100 if (info->pstate == pstate)
101 break;
102 }
103 return data;
104}
105
106u16
107nvbios_boostSe(struct nouveau_bios *bios, int idx,
108 u16 data, u8 *ver, u8 *hdr, u8 cnt, u8 len)
109{
110 if (data && idx < cnt) {
111 data = data + *hdr + (idx * len);
112 *hdr = len;
113 return data;
114 }
115 return 0x0000;
116}
117
118u16
119nvbios_boostSp(struct nouveau_bios *bios, int idx,
120 u16 data, u8 *ver, u8 *hdr, u8 cnt, u8 len,
121 struct nvbios_boostS *info)
122{
123 data = nvbios_boostSe(bios, idx, data, ver, hdr, cnt, len);
124 memset(info, 0x00, sizeof(*info));
125 if (data) {
126 info->domain = nv_ro08(bios, data + 0x00);
127 info->percent = nv_ro08(bios, data + 0x01);
128 info->min = nv_ro16(bios, data + 0x02) * 1000;
129 info->max = nv_ro16(bios, data + 0x04) * 1000;
130 }
131 return data;
132}
133