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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | /* * Copyright 2012 Nouveau Community * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Martin Peres */ #include <subdev/bios.h> #include <subdev/bios/bit.h> #include <subdev/bios/vmap.h> u32 nvbios_vmap_table(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) { struct bit_entry bit_P; u32 vmap = 0; if (!bit_entry(bios, 'P', &bit_P)) { if (bit_P.version == 2) { vmap = nvbios_rd32(bios, bit_P.offset + 0x20); if (vmap) { *ver = nvbios_rd08(bios, vmap + 0); switch (*ver) { case 0x10: case 0x20: *hdr = nvbios_rd08(bios, vmap + 1); *cnt = nvbios_rd08(bios, vmap + 3); *len = nvbios_rd08(bios, vmap + 2); return vmap; default: break; } } } } return 0; } u32 nvbios_vmap_parse(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_vmap *info) { u32 vmap = nvbios_vmap_table(bios, ver, hdr, cnt, len); memset(info, 0x00, sizeof(*info)); switch (!!vmap * *ver) { case 0x10: info->max0 = 0xff; info->max1 = 0xff; info->max2 = 0xff; break; case 0x20: info->max0 = nvbios_rd08(bios, vmap + 0x7); info->max1 = nvbios_rd08(bios, vmap + 0x8); if (*len >= 0xc) info->max2 = nvbios_rd08(bios, vmap + 0xc); else info->max2 = 0xff; break; } return vmap; } u32 nvbios_vmap_entry(struct nvkm_bios *bios, int idx, u8 *ver, u8 *len) { u8 hdr, cnt; u32 vmap = nvbios_vmap_table(bios, ver, &hdr, &cnt, len); if (vmap && idx < cnt) { vmap = vmap + hdr + (idx * *len); return vmap; } return 0; } u32 nvbios_vmap_entry_parse(struct nvkm_bios *bios, int idx, u8 *ver, u8 *len, struct nvbios_vmap_entry *info) { u32 vmap = nvbios_vmap_entry(bios, idx, ver, len); memset(info, 0x00, sizeof(*info)); switch (!!vmap * *ver) { case 0x10: info->link = 0xff; info->min = nvbios_rd32(bios, vmap + 0x00); info->max = nvbios_rd32(bios, vmap + 0x04); info->arg[0] = nvbios_rd32(bios, vmap + 0x08); info->arg[1] = nvbios_rd32(bios, vmap + 0x0c); info->arg[2] = nvbios_rd32(bios, vmap + 0x10); break; case 0x20: info->mode = nvbios_rd08(bios, vmap + 0x00); info->link = nvbios_rd08(bios, vmap + 0x01); info->min = nvbios_rd32(bios, vmap + 0x02); info->max = nvbios_rd32(bios, vmap + 0x06); info->arg[0] = nvbios_rd32(bios, vmap + 0x0a); info->arg[1] = nvbios_rd32(bios, vmap + 0x0e); info->arg[2] = nvbios_rd32(bios, vmap + 0x12); info->arg[3] = nvbios_rd32(bios, vmap + 0x16); info->arg[4] = nvbios_rd32(bios, vmap + 0x1a); info->arg[5] = nvbios_rd32(bios, vmap + 0x1e); break; } return vmap; } |