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Optimize bulk memory invalidation (#124)

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* Per page -> per range search (optimization)
This commit is contained in:
nmzik
2026-07-29 05:09:36 +02:00
committed by GitHub
parent 861729fc6c
commit f6e01e5403
16 changed files with 322 additions and 228 deletions
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src/graphics/host_gpu/pageManager.cpp
-38
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@@ -699,26 +699,6 @@ bool PageManager::IsMapped(uint64_t vaddr, uint64_t size) const noexcept {
return true;
}
bool PageManager::HasAnyMapping(uint64_t vaddr, uint64_t size) const noexcept {
if (g_in_fault_resolution || vaddr == 0 || size == 0 || vaddr >= ADDRESS_SIZE ||
size > ADDRESS_SIZE - vaddr) {
return false;
}
const auto end = PageEnd(vaddr, size);
for (auto page_vaddr = PageStart(vaddr); page_vaddr < end; page_vaddr += PAGE_SIZE) {
auto* region = m_impl->FindRegion(page_vaddr);
if (region == nullptr) {
continue;
}
auto& page = m_impl->GetPage(*region, page_vaddr);
SpinGuard lock(page.lock);
if (page.mappings != 0) {
return true;
}
}
return false;
}
bool PageManager::HasGpuAccess(uint64_t vaddr, uint64_t size, GpuAccess access) const noexcept {
if (access != GpuAccess::Read && access != GpuAccess::Write && access != GpuAccess::ReadWrite) {
FailFast("HasGpuAccess received an invalid GPU access mode");
@@ -1150,22 +1130,4 @@ bool PageManager::HandleFault(PageFaultAccess access, uint64_t fault_vaddr) noex
return true;
}
bool PageManager::HandleWriteRange(uint64_t vaddr, uint64_t size) noexcept {
if (g_in_fault_resolution || vaddr == 0 || size == 0 || vaddr >= ADDRESS_SIZE ||
size > ADDRESS_SIZE - vaddr) {
return false;
}
const auto end = PageEnd(vaddr, size);
for (auto page_vaddr = PageStart(vaddr); page_vaddr < end; page_vaddr += PAGE_SIZE) {
if (!IsMapped(page_vaddr, 1)) {
continue;
}
const auto fault_vaddr = std::max(page_vaddr, vaddr);
if (!HandleFault(PageFaultAccess::Write, fault_vaddr)) {
return false;
}
}
return true;
}
} // namespace Libs::Graphics