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SMMU: Implement physical memory mirroring

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This commit is contained in:
Fernando Sahmkow
2023-12-29 07:53:52 +01:00
committed by Liam
parent 0a2536a0df
commit 34a8d0cc8e
8 changed files with 226 additions and 40 deletions
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27
src/core/device_memory_manager.h
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@ -10,8 +10,10 @@
#include <mutex>
#include "common/common_types.h"
#include "common/scratch_buffer.h"
#include "common/virtual_buffer.h"
namespace Core {
class DeviceMemory;
@ -49,9 +51,25 @@ public:
template <typename T>
const T* GetPointer(DAddr address) const;
DAddr GetAddressFromPAddr(PAddr address) const {
template <typename Func>
void ApplyOpOnPAddr(PAddr address, Common::ScratchBuffer<u32>& buffer, Func&& operation) {
DAddr subbits = static_cast<DAddr>(address & page_mask);
return (static_cast<DAddr>(compressed_device_addr[(address >> page_bits)]) << page_bits) + subbits;
const u32 base = compressed_device_addr[(address >> page_bits)];
if ((base >> MULTI_FLAG_BITS) == 0) [[likely]] {
const DAddr d_address = static_cast<DAddr>(base << page_bits) + subbits;
operation(d_address);
return;
}
InnerGatherDeviceAddresses(buffer, address);
for (u32 value : buffer) {
operation(static_cast<DAddr>(value << page_bits) + subbits);
}
}
template <typename Func>
void ApplyOpOnPointer(const u8* p, Common::ScratchBuffer<u32>& buffer, Func&& operation) {
PAddr address = GetRawPhysicalAddr<u8>(p);
ApplyOpOnPAddr(address, buffer, operation);
}
PAddr GetPhysicalRawAddressFromDAddr(DAddr address) const {
@ -98,6 +116,9 @@ private:
static constexpr size_t page_size = 1ULL << page_bits;
static constexpr size_t page_mask = page_size - 1ULL;
static constexpr u32 physical_address_base = 1U << page_bits;
static constexpr u32 MULTI_FLAG_BITS = 31;
static constexpr u32 MULTI_FLAG = 1U << MULTI_FLAG_BITS;
static constexpr u32 MULTI_MASK = ~MULTI_FLAG;
template <typename T>
T* GetPointerFromRaw(PAddr addr) {
@ -117,6 +138,8 @@ private:
void WalkBlock(const DAddr addr, const std::size_t size, auto on_unmapped, auto on_memory,
auto increment);
void InnerGatherDeviceAddresses(Common::ScratchBuffer<u32>& buffer, PAddr address);
std::unique_ptr<DeviceMemoryManagerAllocator<Traits>> impl;
const uintptr_t physical_base;