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
28u16
29nvbios_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	u16 boost = 0x0000;
34
35	if (!bit_entry(bios, 'P', &bit_P)) {
36		if (bit_P.version == 2)
37			boost = nv_ro16(bios, bit_P.offset + 0x30);
38
39		if (boost) {
40			*ver = nv_ro08(bios, boost + 0);
41			switch (*ver) {
42			case 0x11:
43				*hdr = nv_ro08(bios, boost + 1);
44				*cnt = nv_ro08(bios, boost + 5);
45				*len = nv_ro08(bios, boost + 2);
46				*snr = nv_ro08(bios, boost + 4);
47				*ssz = nv_ro08(bios, boost + 3);
48				return boost;
49			default:
50				break;
51			}
52		}
53	}
54
55	return 0x0000;
56}
57
58u16
59nvbios_boostEe(struct nvkm_bios *bios, int idx,
60	       u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
61{
62	u8  snr, ssz;
63	u16 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 0x0000;
72}
73
74u16
75nvbios_boostEp(struct nvkm_bios *bios, int idx,
76	       u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_boostE *info)
77{
78	u16 data = nvbios_boostEe(bios, idx, ver, hdr, cnt, len);
79	memset(info, 0x00, sizeof(*info));
80	if (data) {
81		info->pstate = (nv_ro16(bios, data + 0x00) & 0x01e0) >> 5;
82		info->min    =  nv_ro16(bios, data + 0x02) * 1000;
83		info->max    =  nv_ro16(bios, data + 0x04) * 1000;
84	}
85	return data;
86}
87
88u16
89nvbios_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
100u16
101nvbios_boostSe(struct nvkm_bios *bios, int idx,
102	       u16 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 0x0000;
110}
111
112u16
113nvbios_boostSp(struct nvkm_bios *bios, int idx,
114	       u16 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  = nv_ro08(bios, data + 0x00);
121		info->percent = nv_ro08(bios, data + 0x01);
122		info->min     = nv_ro16(bios, data + 0x02) * 1000;
123		info->max     = nv_ro16(bios, data + 0x04) * 1000;
124	}
125	return data;
126}
127