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Use spans over guest memory where possible instead of copying data.

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This commit is contained in:
Kelebek1 2023-05-29 00:35:51 +01:00
parent 378fee4c18
commit 42638691b5
22 changed files with 462 additions and 233 deletions
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54
src/core/memory.cpp
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@ -266,6 +266,22 @@ struct Memory::Impl {
ReadBlockImpl<true>(*system.ApplicationProcess(), src_addr, dest_buffer, size);
}
const u8* GetSpan(const VAddr src_addr, const std::size_t size) const {
if (current_page_table->blocks[src_addr >> YUZU_PAGEBITS] ==
current_page_table->blocks[(src_addr + size) >> YUZU_PAGEBITS]) {
return GetPointerSilent(src_addr);
}
return nullptr;
}
u8* GetSpan(const VAddr src_addr, const std::size_t size) {
if (current_page_table->blocks[src_addr >> YUZU_PAGEBITS] ==
current_page_table->blocks[(src_addr + size) >> YUZU_PAGEBITS]) {
return GetPointerSilent(src_addr);
}
return nullptr;
}
template <bool UNSAFE>
void WriteBlockImpl(const Kernel::KProcess& process, const Common::ProcessAddress dest_addr,
const void* src_buffer, const std::size_t size) {
@ -559,7 +575,7 @@ struct Memory::Impl {
}
}
const Common::ProcessAddress end = base + size;
const auto end = base + size;
ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}",
base + page_table.pointers.size());
@ -570,14 +586,18 @@ struct Memory::Impl {
while (base != end) {
page_table.pointers[base].Store(nullptr, type);
page_table.backing_addr[base] = 0;
page_table.blocks[base] = 0;
base += 1;
}
} else {
auto orig_base = base;
while (base != end) {
page_table.pointers[base].Store(
system.DeviceMemory().GetPointer<u8>(target) - (base << YUZU_PAGEBITS), type);
page_table.backing_addr[base] = GetInteger(target) - (base << YUZU_PAGEBITS);
auto host_ptr =
system.DeviceMemory().GetPointer<u8>(target) - (base << YUZU_PAGEBITS);
auto backing = GetInteger(target) - (base << YUZU_PAGEBITS);
page_table.pointers[base].Store(host_ptr, type);
page_table.backing_addr[base] = backing;
page_table.blocks[base] = orig_base << YUZU_PAGEBITS;
ASSERT_MSG(page_table.pointers[base].Pointer(),
"memory mapping base yield a nullptr within the table");
@ -747,6 +767,14 @@ struct Memory::Impl {
VAddr last_address;
};
void InvalidateRegion(Common::ProcessAddress dest_addr, size_t size) {
system.GPU().InvalidateRegion(GetInteger(dest_addr), size);
}
void FlushRegion(Common::ProcessAddress dest_addr, size_t size) {
system.GPU().FlushRegion(GetInteger(dest_addr), size);
}
Core::System& system;
Common::PageTable* current_page_table = nullptr;
std::array<VideoCore::RasterizerDownloadArea, Core::Hardware::NUM_CPU_CORES>
@ -881,6 +909,14 @@ void Memory::ReadBlockUnsafe(const Common::ProcessAddress src_addr, void* dest_b
impl->ReadBlockUnsafe(src_addr, dest_buffer, size);
}
const u8* Memory::GetSpan(const VAddr src_addr, const std::size_t size) const {
return impl->GetSpan(src_addr, size);
}
u8* Memory::GetSpan(const VAddr src_addr, const std::size_t size) {
return impl->GetSpan(src_addr, size);
}
void Memory::WriteBlock(const Common::ProcessAddress dest_addr, const void* src_buffer,
const std::size_t size) {
impl->WriteBlock(dest_addr, src_buffer, size);
@ -924,4 +960,12 @@ void Memory::MarkRegionDebug(Common::ProcessAddress vaddr, u64 size, bool debug)
impl->MarkRegionDebug(GetInteger(vaddr), size, debug);
}
void Memory::InvalidateRegion(Common::ProcessAddress dest_addr, size_t size) {
impl->InvalidateRegion(dest_addr, size);
}
void Memory::FlushRegion(Common::ProcessAddress dest_addr, size_t size) {
impl->FlushRegion(dest_addr, size);
}
} // namespace Core::Memory