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Add B3's low ram freq DVFS

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Co-Authored-By: halop <4215938+halop@users.noreply.github.com>
This commit is contained in:
souldbminersmwc
2026-04-22 16:56:09 -04:00
parent e6942f95e7
commit fa1510a40d
1 changed files with 25 additions and 6 deletions
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31
Source/hoc-clk/sysmodule/src/board/board_volt.cpp
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@@ -1,6 +1,8 @@
/* /*
* Copyright (c) Souldbminer, Lightos_ and Horizon OC Contributors * Copyright (c) Souldbminer, Lightos_ and Horizon OC Contributors
* *
* Copyright (c) B3711
*
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License, * under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation. * version 2, as published by the Free Software Foundation.
@@ -429,17 +431,34 @@ namespace board {
static const u32 gpuVoltArray[] = { 590, 600, 610, 620, 630, 640, 650, 660, 670, 680, 690, 700, 710, 720, 730, 740, 750, 760, 770, 780, 790, 800, }; static const u32 gpuVoltArray[] = { 590, 600, 610, 620, 630, 640, 650, 660, 670, 680, 690, 700, 710, 720, 730, 740, 750, 760, 770, 780, 790, 800, };
if (freqMhz <= 1600) { if (freqMhz <= 1600) return 0;
return 0; if (bracket >= std::size(ramTable)) bracket = 0;
u32 bracketStart = ramTable[bracket][0];
u32 rampStartVolt = (bracket == 0) ? 550 : 540;
u32 rampSpan = 590 - rampStartVolt;
if (freqMhz >= 1633 && freqMhz < bracketStart) {
u32 raw = rampStartVolt + ((freqMhz - 1633) * rampSpan) / (bracketStart - 1633);
u32 volt = ((raw + 2) / 5) * 5;
if (volt < rampStartVolt) volt = rampStartVolt;
if (volt > 590) volt = 590;
return volt;
} }
u32 baseVolt = gpuVoltArray[std::size(gpuVoltArray) - 1];
for (u32 i = 0; i < std::size(gpuVoltArray); ++i) { for (u32 i = 0; i < std::size(gpuVoltArray); ++i) {
if (freqMhz <= ramTable[bracket][i]) { if (freqMhz <= ramTable[bracket][i]) {
return gpuVoltArray[i]; baseVolt = gpuVoltArray[i];
break;
} }
} }
return gpuVoltArray[std::size(gpuVoltArray) - 1]; return baseVolt;
} }
} }