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MemoryManager: initial multi paging system implementation.

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This commit is contained in:
Fernando Sahmkow
2022-02-05 18:15:26 +01:00
parent 98b5e236d4
commit 4d60410dd9
6 changed files with 346 additions and 212 deletions
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57
src/video_core/memory_manager.h
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@ -10,21 +10,26 @@
#include "common/common_types.h"
#include "common/multi_level_page_table.h"
#include "common/virtual_buffer.h"
namespace VideoCore {
class RasterizerInterface;
}
namespace Core {
class DeviceMemory;
namespace Memory {
class Memory;
} // namespace Memory
class System;
}
} // namespace Core
namespace Tegra {
class MemoryManager final {
public:
explicit MemoryManager(Core::System& system_, u64 address_space_bits_ = 40,
u64 page_bits_ = 16);
u64 big_page_bits_ = 16, u64 page_bits_ = 12);
~MemoryManager();
size_t GetID() const {
@ -93,12 +98,8 @@ public:
std::vector<std::pair<GPUVAddr, std::size_t>> GetSubmappedRange(GPUVAddr gpu_addr,
std::size_t size) const;
GPUVAddr Map(GPUVAddr gpu_addr, VAddr cpu_addr, std::size_t size);
GPUVAddr MapSparse(GPUVAddr gpu_addr, std::size_t size);
[[nodiscard]] GPUVAddr MapAllocate(VAddr cpu_addr, std::size_t size, std::size_t align);
[[nodiscard]] GPUVAddr MapAllocate32(VAddr cpu_addr, std::size_t size);
[[nodiscard]] std::optional<GPUVAddr> AllocateFixed(GPUVAddr gpu_addr, std::size_t size);
[[nodiscard]] GPUVAddr Allocate(std::size_t size, std::size_t align);
GPUVAddr Map(GPUVAddr gpu_addr, VAddr cpu_addr, std::size_t size, bool is_big_pages = true);
GPUVAddr MapSparse(GPUVAddr gpu_addr, std::size_t size, bool is_big_pages = true);
void Unmap(GPUVAddr gpu_addr, std::size_t size);
void FlushRegion(GPUVAddr gpu_addr, size_t size) const;
@ -107,26 +108,42 @@ private:
[[nodiscard]] std::optional<GPUVAddr> FindFreeRange(std::size_t size, std::size_t align,
bool start_32bit_address = false) const;
void ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size,
bool is_safe) const;
void WriteBlockImpl(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size,
bool is_safe);
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;
template <bool is_safe>
void ReadBlockImpl(GPUVAddr gpu_src_addr, void* dest_buffer, std::size_t size) const;
template <bool is_safe>
void WriteBlockImpl(GPUVAddr gpu_dest_addr, const void* src_buffer, std::size_t size);
template <bool is_big_page>
[[nodiscard]] inline std::size_t PageEntryIndex(GPUVAddr gpu_addr) const {
return (gpu_addr >> page_bits) & page_table_mask;
if constexpr (is_big_page) {
return (gpu_addr >> big_page_bits) & big_page_table_mask;
} else {
return (gpu_addr >> page_bits) & page_table_mask;
}
}
Core::System& system;
Core::Memory::Memory& memory;
Core::DeviceMemory& device_memory;
const u64 address_space_bits;
const u64 page_bits;
u64 address_space_size;
u64 allocate_start;
u64 page_size;
u64 page_mask;
u64 page_table_mask;
static constexpr u64 cpu_page_bits{12};
const u64 big_page_bits;
u64 big_page_size;
u64 big_page_mask;
u64 big_page_table_mask;
VideoCore::RasterizerInterface* rasterizer = nullptr;
enum class EntryType : u64 {
@ -136,15 +153,23 @@ private:
};
std::vector<u64> entries;
std::vector<u64> big_entries;
template <EntryType entry_type>
GPUVAddr PageTableOp(GPUVAddr gpu_addr, [[maybe_unused]] VAddr cpu_addr, size_t size);
EntryType GetEntry(size_t position) const;
template <EntryType entry_type>
GPUVAddr BigPageTableOp(GPUVAddr gpu_addr, [[maybe_unused]] VAddr cpu_addr, size_t size);
void SetEntry(size_t position, EntryType entry);
template <bool is_big_page>
inline EntryType GetEntry(size_t position) const;
template <bool is_big_page>
inline void SetEntry(size_t position, EntryType entry);
Common::MultiLevelPageTable<u32> page_table;
Common::VirtualBuffer<u32> big_page_table_cpu;
Common::VirtualBuffer<u32> big_page_table_physical;
const size_t unique_identifier;