cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/bios/timing.c

/*
 * Copyright 2013 Red Hat Inc.
 *
 * 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: Ben Skeggs
 */
#include <subdev/bios.h>
#include <subdev/bios/bit.h>
#include <subdev/bios/timing.h>


u32 nvbios_timingTe(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz) { struct bit_entry bit_P; u32 timing = 0; if (!bit_entry(bios, 'P', &bit_P)) { if (bit_P.version == 1) timing = nvbios_rd32(bios, bit_P.offset + 4); else if (bit_P.version == 2) timing = nvbios_rd32(bios, bit_P.offset + 8); if (timing) { *ver = nvbios_rd08(bios, timing + 0); switch (*ver) { case 0x10: *hdr = nvbios_rd08(bios, timing + 1); *cnt = nvbios_rd08(bios, timing + 2); *len = nvbios_rd08(bios, timing + 3); *snr = 0; *ssz = 0; return timing; case 0x20: *hdr = nvbios_rd08(bios, timing + 1); *cnt = nvbios_rd08(bios, timing + 5); *len = nvbios_rd08(bios, timing + 2); *snr = nvbios_rd08(bios, timing + 4); *ssz = nvbios_rd08(bios, timing + 3); return timing; default: break; } } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs249100.00%5100.00%
Total249100.00%5100.00%


u32 nvbios_timingEe(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) { u8 snr, ssz; u32 timing = nvbios_timingTe(bios, ver, hdr, cnt, len, &snr, &ssz); if (timing && idx < *cnt) { timing += *hdr + idx * (*len + (snr * ssz)); *hdr = *len; *cnt = snr; *len = ssz; return timing; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs107100.00%4100.00%
Total107100.00%4100.00%


u32 nvbios_timingEp(struct nvkm_bios *bios, int idx, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ramcfg *p) { u32 data = nvbios_timingEe(bios, idx, ver, hdr, cnt, len), temp; p->timing_ver = *ver; p->timing_hdr = *hdr; switch (!!data * *ver) { case 0x10: p->timing_10_WR = nvbios_rd08(bios, data + 0x00); p->timing_10_WTR = nvbios_rd08(bios, data + 0x01); p->timing_10_CL = nvbios_rd08(bios, data + 0x02); p->timing_10_RC = nvbios_rd08(bios, data + 0x03); p->timing_10_RFC = nvbios_rd08(bios, data + 0x05); p->timing_10_RAS = nvbios_rd08(bios, data + 0x07); p->timing_10_RP = nvbios_rd08(bios, data + 0x09); p->timing_10_RCDRD = nvbios_rd08(bios, data + 0x0a); p->timing_10_RCDWR = nvbios_rd08(bios, data + 0x0b); p->timing_10_RRD = nvbios_rd08(bios, data + 0x0c); p->timing_10_13 = nvbios_rd08(bios, data + 0x0d); p->timing_10_ODT = nvbios_rd08(bios, data + 0x0e) & 0x07; if (p->ramcfg_ver >= 0x10) p->ramcfg_RON = nvbios_rd08(bios, data + 0x0e) & 0x07; p->timing_10_24 = 0xff; p->timing_10_21 = 0; p->timing_10_20 = 0; p->timing_10_CWL = 0; p->timing_10_18 = 0; p->timing_10_16 = 0; switch (min_t(u8, *hdr, 25)) { case 25: p->timing_10_24 = nvbios_rd08(bios, data + 0x18); case 24: case 23: case 22: p->timing_10_21 = nvbios_rd08(bios, data + 0x15); case 21: p->timing_10_20 = nvbios_rd08(bios, data + 0x14); case 20: p->timing_10_CWL = nvbios_rd08(bios, data + 0x13); case 19: p->timing_10_18 = nvbios_rd08(bios, data + 0x12); case 18: case 17: p->timing_10_16 = nvbios_rd08(bios, data + 0x10); } break; case 0x20: p->timing[0] = nvbios_rd32(bios, data + 0x00); p->timing[1] = nvbios_rd32(bios, data + 0x04); p->timing[2] = nvbios_rd32(bios, data + 0x08); p->timing[3] = nvbios_rd32(bios, data + 0x0c); p->timing[4] = nvbios_rd32(bios, data + 0x10); p->timing[5] = nvbios_rd32(bios, data + 0x14); p->timing[6] = nvbios_rd32(bios, data + 0x18); p->timing[7] = nvbios_rd32(bios, data + 0x1c); p->timing[8] = nvbios_rd32(bios, data + 0x20); p->timing[9] = nvbios_rd32(bios, data + 0x24); p->timing[10] = nvbios_rd32(bios, data + 0x28); p->timing_20_2e_03 = (nvbios_rd08(bios, data + 0x2e) & 0x03) >> 0; p->timing_20_2e_30 = (nvbios_rd08(bios, data + 0x2e) & 0x30) >> 4; p->timing_20_2e_c0 = (nvbios_rd08(bios, data + 0x2e) & 0xc0) >> 6; p->timing_20_2f_03 = (nvbios_rd08(bios, data + 0x2f) & 0x03) >> 0; temp = nvbios_rd16(bios, data + 0x2c); p->timing_20_2c_003f = (temp & 0x003f) >> 0; p->timing_20_2c_1fc0 = (temp & 0x1fc0) >> 6; p->timing_20_30_07 = (nvbios_rd08(bios, data + 0x30) & 0x07) >> 0; p->timing_20_30_f8 = (nvbios_rd08(bios, data + 0x30) & 0xf8) >> 3; temp = nvbios_rd16(bios, data + 0x31); p->timing_20_31_0007 = (temp & 0x0007) >> 0; p->timing_20_31_0078 = (temp & 0x0078) >> 3; p->timing_20_31_0780 = (temp & 0x0780) >> 7; p->timing_20_31_0800 = (temp & 0x0800) >> 11; p->timing_20_31_7000 = (temp & 0x7000) >> 12; p->timing_20_31_8000 = (temp & 0x8000) >> 15; break; default: data = 0; break; } return data; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs57368.21%675.00%
Roy Spliet26731.79%225.00%
Total840100.00%8100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs93977.86%880.00%
Roy Spliet26722.14%220.00%
Total1206100.00%10100.00%
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