diff options
| author | Takoroka <137927095+Takoroka@users.noreply.github.com> | 2026-10-28 05:41:45 -0400 |
|---|---|---|
| committer | Takoroka <137927095+Takoroka@users.noreply.github.com> | 2026-10-28 05:41:45 -0400 |
| commit | cff4add442d78e088d13005c4c6fdd436b47eecd (patch) | |
| tree | c4bcb200d58b5c1f70ebcd9449597a987ad2e6e8 /src/video_core/engines/kepler_compute.cpp | |
| parent | 5c4e642c286279f3e44d476550736ed6bff400ab (diff) | |
nx2: semaphore releases latch the acquires they satisfy
Switch 2 channels that wait for an exact semaphore value poll on the console
and see every release. Eden resumes a waiting channel only between command
lists and writes releases when fences signal, often several back to back, so
an acquire-equal could miss its value and wait forever. Title 4's 3D queue
ticks a counter that two other queues wait on value by value; under the
loading after the post-customization save one of them missed a tick and the
game froze (channel 4 waiting for 0x5293 with the counter at 0x5310).
Pending acquires now register with Nx2SemaphoreWaiters before fences run,
and every query-cache payload write and QMD add/max release latches the
waiters it meets at the moment it is written.
Diffstat (limited to 'src/video_core/engines/kepler_compute.cpp')
| -rw-r--r-- | src/video_core/engines/kepler_compute.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/video_core/engines/kepler_compute.cpp b/src/video_core/engines/kepler_compute.cpp index 85b1f971f7..dc3f9b25b6 100644 --- a/src/video_core/engines/kepler_compute.cpp +++ b/src/video_core/engines/kepler_compute.cpp @@ -14,6 +14,7 @@ #include "common/logging.h" #include "shader_recompiler/exception.h" #include "core/core.h" +#include "video_core/nx2.h" #include "video_core/engines/fermi_2d.h" #include "video_core/engines/kepler_compute.h" #include "video_core/engines/maxwell_3d.h" @@ -240,6 +241,9 @@ bool KeplerCompute::ProcessNativeMethod(Core::System& system, u32 method, u32 ar rasterizer->SignalFence([this, address, payload] { const u32 value = memory_manager.Read<u32>(address) + payload; memory_manager.Write<u32>(address, value); + if (const auto device = memory_manager.GpuToCpuAddress(address)) { + Tegra::Nx2SemaphoreWaiters::Get().OnWrite(*device, value); + } static const u64 watch = [] { const char* text = std::getenv("EDEN_NX2_SEM_WATCH"); return text ? u64{std::strtoull(text, nullptr, 16)} : u64{}; @@ -257,6 +261,9 @@ bool KeplerCompute::ProcessNativeMethod(Core::System& system, u32 method, u32 ar rasterizer->SignalFence([this, address, payload] { const u32 value = std::max(memory_manager.Read<u32>(address), payload); memory_manager.Write<u32>(address, value); + if (const auto device = memory_manager.GpuToCpuAddress(address)) { + Tegra::Nx2SemaphoreWaiters::Get().OnWrite(*device, value); + } }); } else { static const u64 watch = [] { |