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graphics: perf - batch GPU page watcher updates at 4 MiB granularity

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This commit is contained in:
nmzik
2026-08-02 08:39:50 +02:00
parent 9da7fc5dd6
commit b877b4be9c
16 changed files with 1909 additions and 1142 deletions
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src/graphics/host_gpu/memoryTracker.cpp
+7 -24
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@@ -6,13 +6,7 @@ namespace Libs::Graphics {
static_assert(std::atomic<void*>::is_always_lock_free);
MemoryTracker::MemoryTracker(PageManager& page_manager, PageWatchMode gpu_watch_mode)
: m_page_manager(page_manager), m_gpu_watch_mode(gpu_watch_mode) {
switch (m_gpu_watch_mode) {
case PageWatchMode::Write:
case PageWatchMode::ReadWrite: break;
default: EXIT("unsupported memory tracker GPU page-watch mode\n");
}
MemoryTracker::MemoryTracker(PageManager& page_manager): m_page_manager(page_manager) {
m_regions = std::make_unique<std::atomic<RegionManager*>[]>(REGION_COUNT);
for (size_t i = 0; i < REGION_COUNT; i++) {
m_regions[i].store(nullptr, std::memory_order_relaxed);
@@ -106,34 +100,25 @@ void MemoryTracker::MarkRegionAsCpuModified(uint64_t vaddr, uint64_t size) {
std::lock_guard access(m_access_mutex);
Iterate<true>(vaddr, size, [](RegionManager* manager, uint64_t offset, uint64_t bytes) {
std::scoped_lock lock(manager->lock);
const auto changed =
manager->ChangeState<DirtySource::Cpu, true>(manager->GetCpuAddr() + offset, bytes);
manager->ApplyProtection(changed, false);
manager->ChangeState<DirtySource::Cpu, true>(manager->GetCpuAddr() + offset, bytes);
});
}
void MemoryTracker::MarkRegionAsGpuModified(uint64_t vaddr, uint64_t size) {
CheckNotInUploadCallback();
std::lock_guard access(m_access_mutex);
Iterate<true>(vaddr, size, [this](RegionManager* manager, uint64_t offset, uint64_t bytes) {
Iterate<true>(vaddr, size, [](RegionManager* manager, uint64_t offset, uint64_t bytes) {
std::scoped_lock lock(manager->lock);
const auto changed =
manager->ChangeState<DirtySource::Gpu, true>(manager->GetCpuAddr() + offset, bytes);
manager->ApplyGpuProtection(changed, true, m_gpu_watch_mode);
manager->ChangeState<DirtySource::Gpu, true>(manager->GetCpuAddr() + offset, bytes);
});
}
void MemoryTracker::UnmarkRegionAsGpuModified(uint64_t vaddr, uint64_t size) {
CheckNotInUploadCallback();
std::lock_guard access(m_access_mutex);
Iterate<true>(vaddr, size, [this](RegionManager* manager, uint64_t offset, uint64_t bytes) {
Iterate<false>(vaddr, size, [](RegionManager* manager, uint64_t offset, uint64_t bytes) {
std::scoped_lock lock(manager->lock);
if (!manager->IsFullyModified<DirtySource::Gpu>(offset, bytes)) {
EXIT("cannot clear partially GPU-dirty tracking range\n");
}
const auto changed =
manager->ChangeState<DirtySource::Gpu, false>(manager->GetCpuAddr() + offset, bytes);
manager->ApplyGpuProtection(changed, false, m_gpu_watch_mode);
manager->ChangeState<DirtySource::Gpu, false>(manager->GetCpuAddr() + offset, bytes);
});
}
@@ -156,9 +141,7 @@ void MemoryTracker::UntrackMemoryLocked(uint64_t vaddr, uint64_t size) {
EXIT("cannot untrack GPU-dirty memory\n");
}
Iterate<false>(vaddr, size, [](RegionManager* manager, uint64_t offset, uint64_t bytes) {
const auto changed =
manager->ChangeState<DirtySource::Cpu, true>(manager->GetCpuAddr() + offset, bytes);
manager->ApplyProtection(changed, false);
manager->ChangeState<DirtySource::Cpu, true>(manager->GetCpuAddr() + offset, bytes);
});
locks.clear();
}