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https://github.com/boykopovar/AnyPS5.git
synced 2026-10-22 16:43:05 -05:00
Nicolas AboschandClaude Opus 5.5
82dd286192
A sleep of 1 ms or less returns once the AGC driver sees a GPU batch complete (a thread waits on the recorder's timeline semaphore), runs a batch's completion actions, or VideoOut completes a flip. A thread returns early at most 8 times in a run of back-to-back sleeps; the run restarts when the thread submits AGC work or did not sleep for the requested time. APS5_NO_SLEEP_WAKE=1 keeps every sleep in full. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
#include "prx/libkernel/Time/include/SleepWake.hpp"
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#include "prx/libkernel/Time/include/TimedWait.hpp"
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#include <atomic>
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#include <cstdlib>
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namespace SleepWake {
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namespace {
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struct ThreadState {
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unsigned earlyWakes = 0;
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std::uint64_t lastSleepEndNanos = 0;
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bool sleeping = false;
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};
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thread_local ThreadState state;
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std::atomic<std::uint64_t> completions{0};
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bool Enabled() {
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static const bool enabled = std::getenv("APS5_NO_SLEEP_WAKE") == nullptr;
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return enabled;
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}
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}
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void Sleep(std::uint64_t nanos) {
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bool woken = false;
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if (nanos != 0 && nanos <= MAX_WAKEABLE_NANOS && !state.sleeping && Enabled()) {
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if (TimedWait::NowNanos() - state.lastSleepEndNanos >= nanos) state.earlyWakes = 0;
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if (state.earlyWakes < EARLY_WAKES_PER_RUN) {
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state.sleeping = true;
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const bool early = TimedWait::SleepNanosUnlessChanged(nanos, completions, completions.load(std::memory_order_seq_cst));
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state.sleeping = false;
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if (early) ++state.earlyWakes;
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woken = true;
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}
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}
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if (!woken) TimedWait::SleepNanos(nanos);
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state.lastSleepEndNanos = TimedWait::NowNanos();
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}
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}
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extern "C" {
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void KernelWakeSleepers_nid_no_patch() {
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SleepWake::completions.fetch_add(1, std::memory_order_seq_cst);
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TimedWait::WakeChangeSleepers();
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}
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void KernelNoteGpuSubmit_nid_no_patch() {
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SleepWake::state.earlyWakes = 0;
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}
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}
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