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 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 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 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 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 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 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