OmniNX/Horizon-OC
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

More precise timing params (accounting for 8Gb density)

Browse Source
This commit is contained in:
KazushiM
2021-12-24 00:29:42 +08:00
parent cf6ef64d99
commit f2215a25ed
2 changed files with 472 additions and 453 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
Source/Atmosphere/stratosphere/loader/source/ldr_patcher.cpp
View File

@@ -179,32 +179,18 @@ namespace ams::ldr {
/* Patch max GPU voltage on Mariko */
std::memcpy(reinterpret_cast<void *>(mapped_nso + pcv::GpuVoltageLimitOffsets[i]), &pcv::NewGpuVoltageLimit, sizeof(pcv::NewGpuVoltageLimit));
/* Calculate DIVM and DIVN (clock DIVisors) */
/* Assume oscillator (PLLMB_IN) is 38.4 MHz */
/* PLLMB_OUT = PLLMB_IN / DIVM * DIVN */
u32 divm = 1;
u32 divn = GetEmcClock() / 38400;
if (GetEmcClock() - divn * 38400 >= 38400 / 2) {
divm = 2;
divn = divn * 2 + 1;
}
if (i >= 2) {
for (u32 j = 0; j < sizeof(pcv::MtcTable_1600[i-2])/sizeof(u32); j++) {
pcv::MarikoMtcTable* mtc_table_new = reinterpret_cast<pcv::MarikoMtcTable *>(mapped_nso + pcv::MtcTable_1600[i-2][j]);
pcv::MarikoMtcTable* mtc_table_old = reinterpret_cast<pcv::MarikoMtcTable *>(mapped_nso + pcv::MtcTable_1600[i-2][j] - pcv::MtcTableOffset);
#ifdef REPLACE_1331
/* Replace 1331 MHz with 1600 MHz */
/* Replace 1331 MHz with 1600 MHz, not possible without proper timings for oc clock */
std::memcpy(reinterpret_cast<void *>(mtc_table_old), reinterpret_cast<void *>(mtc_table_new), sizeof(pcv::MarikoMtcTable));
#endif
/* Generate new table for OC MHz */
pcv::AdjustMtcTable(mtc_table_new);
/* Patch clock divisors */
mtc_table_1600->pllmb_divm = divm;
mtc_table_1600->pllmb_divn = divn;
pcv::AdjustMtcTable(mtc_table_new, mtc_table_old);
}
}