octo
/
yuzu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MemoryManager: Finish up the initial implementation.

This commit is contained in:
Fernando Sahmkow 2022-02-06 18:51:07 +01:00
parent 5caa150e9a
commit 359f22b808
2 changed files with 138 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

177
src/video_core/memory_manager.cpp
View File

@ -15,8 +15,6 @@
#include "video_core/rasterizer_interface.h"
#include "video_core/renderer_base.h"
#pragma optimize("", off)
namespace Tegra {
std::atomic<size_t> MemoryManager::unique_identifier_generator{};
@ -42,7 +40,7 @@ MemoryManager::MemoryManager(Core::System& system_, u64 address_space_bits_, u64
big_entries.resize(big_page_table_size / 32, 0);
big_page_table_cpu.resize(big_page_table_size);
big_page_table_physical.resize(big_page_table_size);
big_page_continous.resize(big_page_table_size / continous_bits, 0);
entries.resize(page_table_size / 32, 0);
}
@ -80,6 +78,19 @@ void MemoryManager::SetEntry(size_t position, MemoryManager::EntryType entry) {
}
}
inline bool MemoryManager::IsBigPageContinous(size_t big_page_index) const {
const u64 entry_mask = big_page_continous[big_page_index / continous_bits];
const size_t sub_index = big_page_index % continous_bits;
return ((entry_mask >> sub_index) & 0x1ULL) != 0;
}
inline void MemoryManager::SetBigPageContinous(size_t big_page_index, bool value) {
const u64 continous_mask = big_page_continous[big_page_index / continous_bits];
const size_t sub_index = big_page_index % continous_bits;
big_page_continous[big_page_index / continous_bits] =
(~(1ULL << sub_index) & continous_mask) | (value ? 1ULL << sub_index : 0);
}
template <MemoryManager::EntryType entry_type>
GPUVAddr MemoryManager::PageTableOp(GPUVAddr gpu_addr, [[maybe_unused]] VAddr cpu_addr,
size_t size) {
@ -121,9 +132,19 @@ GPUVAddr MemoryManager::BigPageTableOp(GPUVAddr gpu_addr, [[maybe_unused]] VAddr
const auto index = PageEntryIndex<true>(current_gpu_addr);
const u32 sub_value = static_cast<u32>(current_cpu_addr >> cpu_page_bits);
big_page_table_cpu[index] = sub_value;
const PAddr phys_address =
device_memory.GetPhysicalAddr(memory.GetPointer(current_cpu_addr));
big_page_table_physical[index] = static_cast<u32>(phys_address);
const bool is_continous = ([&] {
uintptr_t base_ptr{
reinterpret_cast<uintptr_t>(memory.GetPointer(current_cpu_addr))};
for (VAddr start_cpu = current_cpu_addr + page_size;
start_cpu < current_cpu_addr + big_page_size; start_cpu += page_size) {
base_ptr += page_size;
if (base_ptr != reinterpret_cast<uintptr_t>(memory.GetPointer(start_cpu))) {
return false;
}
}
return true;
})();
SetBigPageContinous(index, is_continous);
}
remaining_size -= big_page_size;
}
@ -248,12 +269,17 @@ const u8* MemoryManager::GetPointer(GPUVAddr gpu_addr) const {
return memory.GetPointer(*address);
}
#ifdef _MSC_VER // no need for gcc / clang but msvc's compiler is more conservative with inlining.
#pragma inline_recursion(on)
#endif
template <bool is_big_pages, typename FuncMapped, typename FuncReserved, typename FuncUnmapped>
inline void MemoryManager::MemoryOperation(GPUVAddr gpu_src_addr, std::size_t size,
FuncMapped&& func_mapped, FuncReserved&& func_reserved,
FuncUnmapped&& func_unmapped) const {
static constexpr bool BOOL_BREAK_MAPPED = std::is_same_v<FuncMapped, bool>;
static constexpr bool BOOL_BREAK_RESERVED = std::is_same_v<FuncReserved, bool>;
static constexpr bool BOOL_BREAK_UNMAPPED = std::is_same_v<FuncUnmapped, bool>;
u64 used_page_size;
u64 used_page_mask;
u64 used_page_bits;
@ -276,11 +302,31 @@ inline void MemoryManager::MemoryOperation(GPUVAddr gpu_src_addr, std::size_t si
std::min(static_cast<std::size_t>(used_page_size) - page_offset, remaining_size)};
auto entry = GetEntry<is_big_pages>(current_address);
if (entry == EntryType::Mapped) [[likely]] {
func_mapped(page_index, page_offset, copy_amount);
if constexpr (BOOL_BREAK_MAPPED) {
if (func_mapped(page_index, page_offset, copy_amount)) {
return;
}
} else {
func_mapped(page_index, page_offset, copy_amount);
}
} else if (entry == EntryType::Reserved) {
func_reserved(page_index, page_offset, copy_amount);
if constexpr (BOOL_BREAK_RESERVED) {
if (func_reserved(page_index, page_offset, copy_amount)) {
return;
}
} else {
func_reserved(page_index, page_offset, copy_amount);
}
} else [[unlikely]] {
func_unmapped(page_index, page_offset, copy_amount);
if constexpr (BOOL_BREAK_UNMAPPED) {
if (func_unmapped(page_index, page_offset, copy_amount)) {
return;
}
} else {
func_unmapped(page_index, page_offset, copy_amount);
}
}
page_index++;
page_offset = 0;
@ -303,7 +349,8 @@ void MemoryManager::ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer,
if constexpr (is_safe) {
rasterizer->FlushRegion(cpu_addr_base, copy_amount);
}
memory.ReadBlockUnsafe(cpu_addr_base, dest_buffer, copy_amount);
u8* physical = memory.GetPointer(cpu_addr_base);
std::memcpy(dest_buffer, physical, copy_amount);
dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
};
auto mapped_big = [&](std::size_t page_index, std::size_t offset, std::size_t copy_amount) {
@ -312,9 +359,12 @@ void MemoryManager::ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer,
if constexpr (is_safe) {
rasterizer->FlushRegion(cpu_addr_base, copy_amount);
}
memory.ReadBlockUnsafe(cpu_addr_base, dest_buffer, copy_amount);
// u8* physical = device_memory.GetPointer(big_page_table_physical[page_index] + offset);
// std::memcpy(dest_buffer, physical, copy_amount);
if (!IsBigPageContinous(page_index)) {
memory.ReadBlockUnsafe(cpu_addr_base, dest_buffer, copy_amount);
} else {
u8* physical = memory.GetPointer(cpu_addr_base);
std::memcpy(dest_buffer, physical, copy_amount);
}
dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
};
auto read_short_pages = [&](std::size_t page_index, std::size_t offset,
@ -347,7 +397,8 @@ void MemoryManager::WriteBlockImpl(GPUVAddr gpu_dest_addr, const void* src_buffe
if constexpr (is_safe) {
rasterizer->InvalidateRegion(cpu_addr_base, copy_amount);
}
memory.WriteBlockUnsafe(cpu_addr_base, src_buffer, copy_amount);
u8* physical = memory.GetPointer(cpu_addr_base);
std::memcpy(physical, src_buffer, copy_amount);
src_buffer = static_cast<const u8*>(src_buffer) + copy_amount;
};
auto mapped_big = [&](std::size_t page_index, std::size_t offset, std::size_t copy_amount) {
@ -356,10 +407,12 @@ void MemoryManager::WriteBlockImpl(GPUVAddr gpu_dest_addr, const void* src_buffe
if constexpr (is_safe) {
rasterizer->InvalidateRegion(cpu_addr_base, copy_amount);
}
memory.WriteBlockUnsafe(cpu_addr_base, src_buffer, copy_amount);
/*u8* physical =
device_memory.GetPointer(big_page_table_physical[page_index] << cpu_page_bits) + offset;
std::memcpy(physical, src_buffer, copy_amount);*/
if (!IsBigPageContinous(page_index)) {
memory.WriteBlockUnsafe(cpu_addr_base, src_buffer, copy_amount);
} else {
u8* physical = memory.GetPointer(cpu_addr_base);
std::memcpy(physical, src_buffer, copy_amount);
}
src_buffer = static_cast<const u8*>(src_buffer) + copy_amount;
};
auto write_short_pages = [&](std::size_t page_index, std::size_t offset,
@ -413,48 +466,80 @@ void MemoryManager::CopyBlock(GPUVAddr gpu_dest_addr, GPUVAddr gpu_src_addr, std
}
bool MemoryManager::IsGranularRange(GPUVAddr gpu_addr, std::size_t size) const {
const auto cpu_addr{GpuToCpuAddress(gpu_addr)};
if (!cpu_addr) {
if (GetEntry<true>(gpu_addr) == EntryType::Mapped) [[likely]] {
size_t page_index = gpu_addr >> big_page_bits;
if (IsBigPageContinous(page_index)) [[likely]] {
const std::size_t page{(page_index & big_page_mask) + size};
return page <= big_page_size;
}
const std::size_t page{(gpu_addr & Core::Memory::YUZU_PAGEMASK) + size};
return page <= Core::Memory::YUZU_PAGESIZE;
}
if (GetEntry<false>(gpu_addr) != EntryType::Mapped) {
return false;
}
const std::size_t page{(*cpu_addr & Core::Memory::YUZU_PAGEMASK) + size};
const std::size_t page{(gpu_addr & Core::Memory::YUZU_PAGEMASK) + size};
return page <= Core::Memory::YUZU_PAGESIZE;
}
bool MemoryManager::IsContinousRange(GPUVAddr gpu_addr, std::size_t size) const {
size_t page_index{gpu_addr >> big_page_bits};
const size_t page_last{(gpu_addr + size + page_size - 1) >> page_bits};
std::optional<VAddr> old_page_addr{};
while (page_index != page_last) {
const auto page_addr{GpuToCpuAddress(page_index << page_bits)};
if (!page_addr || *page_addr == 0) {
return false;
bool result{true};
auto fail = [&]([[maybe_unused]] std::size_t page_index, [[maybe_unused]] std::size_t offset,
std::size_t copy_amount) {
result = false;
return true;
};
auto short_check = [&](std::size_t page_index, std::size_t offset, std::size_t copy_amount) {
const VAddr cpu_addr_base =
(static_cast<VAddr>(page_table[page_index]) << cpu_page_bits) + offset;
if (old_page_addr && *old_page_addr != cpu_addr_base) {
result = false;
return true;
}
if (old_page_addr) {
if (*old_page_addr + page_size != *page_addr) {
return false;
}
old_page_addr = {cpu_addr_base + copy_amount};
return false;
};
auto big_check = [&](std::size_t page_index, std::size_t offset, std::size_t copy_amount) {
const VAddr cpu_addr_base =
(static_cast<VAddr>(big_page_table_cpu[page_index]) << cpu_page_bits) + offset;
if (old_page_addr && *old_page_addr != cpu_addr_base) {
result = false;
return true;
}
old_page_addr = page_addr;
++page_index;
}
return true;
old_page_addr = {cpu_addr_base + copy_amount};
return false;
};
auto check_short_pages = [&](std::size_t page_index, std::size_t offset,
std::size_t copy_amount) {
GPUVAddr base = (page_index << big_page_bits) + offset;
MemoryOperation<false>(base, copy_amount, short_check, fail, fail);
return !result;
};
MemoryOperation<true>(gpu_addr, size, big_check, fail, check_short_pages);
return result;
}
bool MemoryManager::IsFullyMappedRange(GPUVAddr gpu_addr, std::size_t size) const {
size_t page_index{gpu_addr >> page_bits};
const size_t page_last{(gpu_addr + size + page_size - 1) >> page_bits};
while (page_index < page_last) {
if (GetEntry<false>(page_index << page_bits) == EntryType::Free) {
return false;
}
++page_index;
}
return true;
std::optional<VAddr> old_page_addr{};
bool result{true};
auto fail = [&]([[maybe_unused]] std::size_t page_index, [[maybe_unused]] std::size_t offset,
[[maybe_unused]] std::size_t copy_amount) {
result = false;
return true;
};
auto pass = [&]([[maybe_unused]] std::size_t page_index, [[maybe_unused]] std::size_t offset,
[[maybe_unused]] std::size_t copy_amount) { return false; };
auto check_short_pages = [&](std::size_t page_index, std::size_t offset,
std::size_t copy_amount) {
GPUVAddr base = (page_index << big_page_bits) + offset;
MemoryOperation<false>(base, copy_amount, pass, pass, fail);
return !result;
};
MemoryOperation<true>(gpu_addr, size, pass, fail, check_short_pages);
return result;
}
#pragma inline_recursion(on)
std::vector<std::pair<GPUVAddr, std::size_t>> MemoryManager::GetSubmappedRange(
GPUVAddr gpu_addr, std::size_t size) const {
std::vector<std::pair<GPUVAddr, std::size_t>> result{};

11
src/video_core/memory_manager.h
View File

@ -105,9 +105,6 @@ public:
void FlushRegion(GPUVAddr gpu_addr, size_t size) const;
private:
[[nodiscard]] std::optional<GPUVAddr> FindFreeRange(std::size_t size, std::size_t align,
bool start_32bit_address = false) const;
template <bool is_big_pages, typename FuncMapped, typename FuncReserved, typename FuncUnmapped>
inline void MemoryOperation(GPUVAddr gpu_src_addr, std::size_t size, FuncMapped&& func_mapped,
FuncReserved&& func_reserved, FuncUnmapped&& func_unmapped) const;
@ -127,6 +124,9 @@ private:
}
}
inline bool IsBigPageContinous(size_t big_page_index) const;
inline void SetBigPageContinous(size_t big_page_index, bool value);
Core::System& system;
Core::Memory::Memory& memory;
Core::DeviceMemory& device_memory;
@ -169,7 +169,10 @@ private:
Common::MultiLevelPageTable<u32> page_table;
Common::VirtualBuffer<u32> big_page_table_cpu;
Common::VirtualBuffer<u32> big_page_table_physical;
std::vector<u64> big_page_continous;
constexpr static size_t continous_bits = 64;
const size_t unique_identifier;