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ldr: fix 1333 latency max bug -- index 0 is a valid latency

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Lightos1
2026-04-26 22:13:49 +02:00
parent ec4a1f974b
commit fb3e976f2e
1 changed files with 7 additions and 6 deletions
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13
Source/Atmosphere/stratosphere/loader/source/oc/mariko/calculate_timings.cpp
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@@ -34,8 +34,8 @@ namespace ams::ldr::hoc::pcv::mariko {
latency += index * latencyStep; latency += index * latencyStep;
} }
static u32 GetMaxLatencyIndex(volatile u32 *latencyArray, u32 latencySize) { static s32 GetMaxLatencyIndex(volatile u32 *latencyArray, u32 latencySize) {
u32 maxIndex = 0; s32 maxIndex = -1;
for (u32 i = 0; i < latencySize; ++i) { for (u32 i = 0; i < latencySize; ++i) {
if (latencyArray[i]) { if (latencyArray[i]) {
maxIndex = i; maxIndex = i;
@@ -65,18 +65,18 @@ namespace ams::ldr::hoc::pcv::mariko {
} }
void HandleLatency(u32 freq) { void HandleLatency(u32 freq) {
static u32 rlIndexMax = GetMaxLatencyIndex(C.readLatency, std::size(C.readLatency)); static s32 rlIndexMax = GetMaxLatencyIndex(C.readLatency, std::size(C.readLatency));
static u32 wlIndexMax = GetMaxLatencyIndex(C.writeLatency, std::size(C.writeLatency)); static s32 wlIndexMax = GetMaxLatencyIndex(C.writeLatency, std::size(C.writeLatency));
constexpr u32 ReadLatencyStep = 4; constexpr u32 ReadLatencyStep = 4;
constexpr u32 WriteLatencyStep = 2; constexpr u32 WriteLatencyStep = 2;
bool autoLatencyRead = false, autoLatencyWrite = false; bool autoLatencyRead = false, autoLatencyWrite = false;
if (rlIndexMax == 0) { if (rlIndexMax == -1) {
AutoLatency(RL, freq, ReadLatencyStep); AutoLatency(RL, freq, ReadLatencyStep);
autoLatencyRead = true; autoLatencyRead = true;
} }
if (wlIndexMax == 0) { if (wlIndexMax == -1) {
AutoLatency(WL, freq, WriteLatencyStep); AutoLatency(WL, freq, WriteLatencyStep);
autoLatencyWrite = true; autoLatencyWrite = true;
} }
@@ -120,6 +120,7 @@ namespace ams::ldr::hoc::pcv::mariko {
} }
} }
/* DBI is always enabled. */
mrw2 = static_cast<u8>(((rlIndex & 0x7) | ((wlIndex & 0x7) << 3) | ((0 & 0x1) << 6))); mrw2 = static_cast<u8>(((rlIndex & 0x7) | ((wlIndex & 0x7) << 3) | ((0 & 0x1) << 6)));
} }