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[core/core_timing] better MWAITX and WAITPKG delays (#3984)

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This implements MWAITX and WAITPKG extensions (umonitor, mwait) for CPUs that support them.

Reduces wait times and bypasses the timing stuff from the OS that is slow (windows notably). generally it should answer within 0.2 to 0.5 microsecs (since most requests wait for that long).

Also does a general rework of static ctors and stuff

Signed-off-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3984
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: crueter <crueter@eden-emu.dev>
This commit is contained in:
lizzie
2026-05-30 21:59:10 +02:00
committed by crueter
parent ff7bbaea7d
commit 7c32cf03a1
19 changed files with 477 additions and 533 deletions
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src/core/hle/service/nvnflinger/buffer_queue_producer.cpp
+2 -2
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@@ -10,6 +10,7 @@
#include "common/assert.h"
#include "common/logging.h"
#include "common/settings.h"
#include "common/cpu_features.h"
#include "core/hle/kernel/k_event.h"
#include "core/hle/kernel/k_readable_event.h"
#include "core/hle/kernel/kernel.h"
@@ -28,7 +29,6 @@ BufferQueueProducer::BufferQueueProducer(Service::KernelHelpers::ServiceContext&
Service::Nvidia::NvCore::NvMap& nvmap_)
: service_context{service_context_}, core{std::move(buffer_queue_core_)}
, slots(core->slots)
, clock{Common::CreateOptimalClock()}
, nvmap(nvmap_)
{
buffer_wait_event = service_context.CreateEvent("BufferQueue:WaitEvent");
@@ -488,7 +488,7 @@ Status BufferQueueProducer::QueueBuffer(s32 slot, const QueueBufferInput& input,
slots[slot].buffer_state = BufferState::Queued;
slots[slot].frame_number = core->frame_counter;
slots[slot].queue_time = timestamp;
slots[slot].presentation_time = clock.GetTimeNS().count();
slots[slot].presentation_time = Common::g_wall_clock.GetTimeNS().count();
slots[slot].fence = fence;
item.slot = slot;
src/core/hle/service/nvnflinger/buffer_queue_producer.h
+1 -2
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@@ -14,7 +14,7 @@
#include <mutex>
#include "common/common_funcs.h"
#include "common/wall_clock.h"
#include "common/cpu_features.h"
#include "core/hle/service/nvdrv/nvdata.h"
#include "core/hle/service/nvnflinger/binder.h"
#include "core/hle/service/nvnflinger/buffer_queue_defs.h"
@@ -89,7 +89,6 @@ private:
s32 next_callback_ticket{};
s32 current_callback_ticket{};
std::condition_variable_any callback_condition;
Common::WallClock clock;
Service::Nvidia::NvCore::NvMap& nvmap;
};
src/core/hle/service/psc/time/common.h
+2 -2
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@@ -1,4 +1,4 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
@@ -13,7 +13,7 @@
#include "common/common_types.h"
#include "common/intrusive_list.h"
#include "common/uuid.h"
#include "common/wall_clock.h"
#include "common/cpu_features.h"
#include "core/hle/kernel/k_event.h"
#include "core/hle/service/kernel_helpers.h"
#include "core/hle/service/psc/time/errors.h"