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timing calculation cleanup

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This commit is contained in:
Lightos1
2026-01-01 23:17:56 +01:00
parent ea20003df0
commit f1a13e0955
4 changed files with 44 additions and 50 deletions
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24
Source/Atmosphere/stratosphere/loader/source/oc/mariko/calculate_timings.cpp
View File

@@ -20,6 +20,7 @@
namespace ams::ldr::oc::pcv::mariko {
u32 calcClock;
u32 GetRext() {
if (auto r = FindRext()) {
return r->correct;
@@ -129,9 +130,30 @@ namespace ams::ldr::oc::pcv::mariko {
}
}
/* TODO: Refactor this into multiple functions. */
void CalculateCore() {
tCK_avg = 1000'000.0 / calcClock;
tR2P = 12 + (C.mem_burst_read_latency / 2);
tRTM = RL + 9 + (tDQSCK_max / tCK_avg) + FLOOR(tRPST) + CEIL(10 / tCK_avg); // Fix?
tRATM = tRTM + CEIL(10 / tCK_avg) - 12; // Fix?
quse = FLOOR((-0.0048159 * (calcClock / 1000.0)) + RL_DBI) + (FLOOR((calcClock / 1000.0) * 0.0050997) * 1.5134);
einput = quse - ((calcClock / 1000.0) * 0.01);
tW2P = (CEIL(WL * 1.7303) * 2) - 5;
tW2R = CEIL(MAX(WL + (0.010322547033278747 * (calcClock / 1000.0)), (WL * -0.2067922202979121) + FLOOR(((RL_DBI * -0.1331159971685554) + WL) * 3.654131957826108)) - (tWTR / tCK_avg));
tWTM = WL + (BL / 2) + 1 + CEIL(7.5 / tCK_avg);
tWATM = tWTM + CEIL(tWR / tCK_avg);
wdv = WL;
wsv = WL - 2;
wev = 0xA + C.mem_burst_write_latency;
tCKE = CEIL(1.0795 * CEIL(0.0074472 * (calcClock / 1000.0)));
tMMRI = tRCD + (tCK_avg * 3);
pdex2mrr = tMMRI + 10; /* Do this properly? */
}
void CalculateTimings(u32 rate_khz) {
calcClock = rate_khz;
SetTableMaxClock(rate_khz);
CalculateCore();
CalculateMiscTimings();
CalculateIbdly();
CalculateObdly();
@@ -144,4 +166,4 @@ namespace ams::ldr::oc::pcv::mariko {
CalculateCke2pden();
}
}
}

3
Source/Atmosphere/stratosphere/loader/source/oc/mariko/timing_tables.cpp
View File

@@ -23,6 +23,7 @@ namespace ams::ldr::oc::pcv::mariko {
void SetTableMaxClock(u32 maxClock) {
clkMax = maxClock;
}
const MiscTimings g_misc_table[] = {
{1'866'000, 1, 0x20, 0x9, },
{2'133'000, 1, 0x24, 0xA, },
@@ -269,4 +270,4 @@ namespace ams::ldr::oc::pcv::mariko {
return nullptr;
}
}
}