| 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 | |
| 34 | u16 |
| 35 | nvbios_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 | |
| 64 | u16 |
| 65 | nvbios_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 | |
| 80 | u16 |
| 81 | nvbios_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 | |
| 94 | u16 |
| 95 | nvbios_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 | |
| 106 | u16 |
| 107 | nvbios_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 | |
| 118 | u16 |
| 119 | nvbios_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 | |