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add on the fly gpu volt table

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This commit is contained in:
Lightos1
2026-07-04 18:18:51 +02:00
parent cb0ffbcd29
commit 7766481ff6
10 changed files with 351 additions and 205 deletions
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130
Source/hoc-clk/sysmodule/src/board/board_volt.cpp
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@@ -281,6 +281,16 @@ namespace board {
return INVALID_HANDLE;
}
bool ValidateHandle(Handle handle) {
if (handle == INVALID_HANDLE) {
fileUtils::LogLine("Invalid handle!");
return false;
}
return true;
}
void CacheGpuVoltTable() {
// Likely CPU regulator?
UnkRegulator reg = {
@@ -290,8 +300,7 @@ namespace board {
};
Handle handle = GetPcvHandle();
if (handle == INVALID_HANDLE) {
fileUtils::LogLine("[dvfs] Invalid handle!");
if (!ValidateHandle(handle)) {
return;
}
@@ -338,13 +347,13 @@ namespace board {
u32 bootVoltage = GetSocType() == HocClkSocType_Mariko ? 800 : 950;
constexpr u32 GpuVoltageTableOffset = 312;
if (!std::memcmp(&buffer[index + GpuVoltageTableOffset], &bootVoltage, sizeof(bootVoltage))) {
std::memcpy(voltData.voltTable, &buffer[index + GpuVoltageTableOffset], sizeof(voltData.voltTable));
std::memcpy(voltData.voltTableStock, &buffer[index + GpuVoltageTableOffset], sizeof(voltData.voltTableStock));
std::memcpy(voltData.voltTableLive, voltData.voltTableStock, sizeof(voltData.voltTableStock));
voltData.voltTableAddress = base + memoryInfo.addr + GpuVoltageTableOffset + index;
}
constexpr u32 CpuVoltageTableOffset = 0xB8;
std::memcpy(cpuVoltTable, &buffer[index + CpuVoltageTableOffset], sizeof(cpuVoltTable)); // TODO: verify the CPU table
svcCloseHandle(handle);
handle = INVALID_HANDLE;
@@ -353,8 +362,8 @@ namespace board {
fileUtils::LogLine("[dvfs] cpu volt %d: %u mV", i, cpuVoltTable[i]);
}
for (int i = 0; i < (int)std::size(voltData.voltTable); ++i) {
fileUtils::LogLine("[dvfs] gpu volt %d: %u mV", i, voltData.voltTable[0][i]);
for (int i = 0; i < (int)std::size(voltData.voltTableStock); ++i) {
fileUtils::LogLine("[dvfs] gpu volt %d: %u mV", i, voltData.voltTableStock[0][i]);
}
return;
}
@@ -365,53 +374,88 @@ namespace board {
return;
}
void PcvHijackGpuVolts(u32 vmin, bool forceOverwrite) {
u32 table[192];
static_assert(sizeof(table) == sizeof(voltData.voltTable), "Invalid gpu voltage table size!");
std::memcpy(table, voltData.voltTable, sizeof(voltData.voltTable));
/* forceOverwrite needs to be handled regardless. */
if (voltData.ramVmin == vmin && !forceOverwrite) {
return;
}
/* Skip adjusting table if vmin is zero (voltage reset), unless forced. */
if (vmin != 0 || forceOverwrite) {
/* Only apply forced voltage override if it's safe to do so. */
if (forceOverwrite && vmin < voltData.ramVmin) {
vmin = voltData.ramVmin;
}
if (vmin != 0) {
for (u32 i = 0; i < std::size(table); ++i) {
if (!table[i]) {
continue;
}
const bool raiseVoltageRamOc = table[i] <= vmin && !forceOverwrite;
if (raiseVoltageRamOc || forceOverwrite) {
table[i] = vmin;
}
}
}
}
// Result ReadGpuVoltTable(u32 *table) {
// Handle handle = GetPcvHandle();
// if (!ValidateHandle(handle)) {
// return 1;
// }
//
// Result rc = svcReadDebugProcessMemory(table, handle, voltData.voltTableAddress, sizeof(voltData.voltTableStock));
// svcCloseHandle(handle);
// return rc;
// }
Result WriteGpuVoltTable(u32 *table) {
Handle handle = GetPcvHandle();
if (handle == INVALID_HANDLE) {
fileUtils::LogLine("Invalid handle!");
if (!ValidateHandle(handle)) {
return 1;
}
Result rc = svcWriteDebugProcessMemory(handle, table, voltData.voltTableAddress, sizeof(voltData.voltTableStock));
svcCloseHandle(handle);
return rc;
}
void PcvHijackGpuVolts(u32 vmin) {
u32 table[GpuVoltTableSize];
std::memcpy(table, voltData.voltTableLive, sizeof(voltData.voltTableLive));
if (voltData.ramVmin == vmin) {
return;
}
Result rc = svcWriteDebugProcessMemory(handle, table, voltData.voltTableAddress, sizeof(table));
if (R_SUCCEEDED(rc) && !forceOverwrite) {
voltData.ramVmin = vmin;
for (u32 i = 0; i < std::size(table); ++i) {
if (table[i] && table[i] <= vmin) {
table[i] = vmin;
}
}
svcCloseHandle(handle);
ASSERT_RESULT_OK(WriteGpuVoltTable(table), "WriteGpuVoltTable");
voltData.ramVmin = vmin;
fileUtils::LogLine("[dvfs] voltage set to %u mV", vmin);
}
u32 GetGpuFreqIndex(u32 hz) {
u32 list[HOCCLK_FREQ_LIST_MAX];
u32 count;
GetFreqList(HocClkModule_GPU, list, HOCCLK_FREQ_LIST_MAX, &count);
for (u32 i = 0; i < count; ++i) {
if (list[i] == hz) {
return i;
}
}
return HOCCLK_FREQ_LIST_MAX;
}
void PcvHijackGpuFrequency(u32 voltage, u32 hz) {
u32 freqIndex = GetGpuFreqIndex(hz);
if (freqIndex == HOCCLK_FREQ_LIST_MAX) {
return;
}
bool voltageReset = (voltage == 0);
for (u32 i = 0; i < GpuVoltTableTempCount; ++i) {
if (voltageReset) {
voltage = voltData.voltTableStock[i][freqIndex];
}
voltData.voltTableLive[i][freqIndex] = voltage;
}
if (voltageReset) {
voltage = voltData.voltTableStock[GpuVoltTableTempCount - 2 /* 70C */][freqIndex];
}
if (voltage >= voltData.ramVmin) {
/* Only update the table if it's safe to do so. */
ASSERT_RESULT_OK(WriteGpuVoltTable(reinterpret_cast<u32 *>(voltData.voltTableLive)), "WriteGpuVoltTable");
}
}
u32 GetMinimumGpuVmin(u32 freqMhz, u32 bracket) {
u32 baseVolt = 800;
if (GetSocType() == HocClkSocType_Mariko) {