diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 7153c4f3f..14bc99ba6 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -163,8 +163,8 @@ add_library(core STATIC
loader/nso.h
memory.cpp
memory.h
+ memory_hook.h
memory_setup.h
- mmio.h
perf_stats.cpp
perf_stats.h
settings.cpp
diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp
index 93662a45e..6da77eb58 100644
--- a/src/core/hle/kernel/vm_manager.cpp
+++ b/src/core/hle/kernel/vm_manager.cpp
@@ -10,8 +10,8 @@
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
+#include "core/memory_hook.h"
#include "core/memory_setup.h"
-#include "core/mmio.h"
namespace Kernel {
@@ -60,8 +60,8 @@ void VMManager::Reset() {
vma_map.emplace(initial_vma.base, initial_vma);
page_table.pointers.fill(nullptr);
+ page_table.special_regions.clear();
page_table.attributes.fill(Memory::PageType::Unmapped);
- page_table.cached_res_count.fill(0);
UpdatePageTableForVMA(initial_vma);
}
@@ -121,7 +121,7 @@ ResultVal<VMManager::VMAHandle> VMManager::MapBackingMemory(VAddr target, u8* me
ResultVal<VMManager::VMAHandle> VMManager::MapMMIO(VAddr target, PAddr paddr, u64 size,
MemoryState state,
- Memory::MMIORegionPointer mmio_handler) {
+ Memory::MemoryHookPointer mmio_handler) {
// This is the appropriately sized VMA that will turn into our allocation.
CASCADE_RESULT(VMAIter vma_handle, CarveVMA(target, size));
VirtualMemoryArea& final_vma = vma_handle->second;
diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index b17385c7c..8de704a60 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -10,7 +10,7 @@
#include "common/common_types.h"
#include "core/hle/result.h"
#include "core/memory.h"
-#include "core/mmio.h"
+#include "core/memory_hook.h"
namespace Kernel {
@@ -81,7 +81,7 @@ struct VirtualMemoryArea {
// Settings for type = MMIO
/// Physical address of the register area this VMA maps to.
PAddr paddr = 0;
- Memory::MMIORegionPointer mmio_handler = nullptr;
+ Memory::MemoryHookPointer mmio_handler = nullptr;
/// Tests if this area can be merged to the right with `next`.
bool CanBeMergedWith(const VirtualMemoryArea& next) const;
@@ -160,7 +160,7 @@ public:
* @param mmio_handler The handler that will implement read and write for this MMIO region.
*/
ResultVal<VMAHandle> MapMMIO(VAddr target, PAddr paddr, u64 size, MemoryState state,
- Memory::MMIORegionPointer mmio_handler);
+ Memory::MemoryHookPointer mmio_handler);
/// Unmaps a range of addresses, splitting VMAs as necessary.
ResultCode UnmapRange(VAddr target, u64 size);
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index a3d2d4951..f658271a5 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -2,8 +2,10 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
+#include <algorithm>
#include <array>
#include <cstring>
+#include <boost/optional.hpp>
#include "common/assert.h"
#include "common/common_types.h"
#include "common/logging/log.h"
@@ -12,7 +14,6 @@
#include "core/core.h"
#include "core/hle/kernel/memory.h"
#include "core/hle/kernel/process.h"
-#include "core/hle/lock.h"
#include "core/memory.h"
#include "core/memory_setup.h"
#include "video_core/renderer_base.h"
@@ -40,16 +41,12 @@ static void MapPages(PageTable& page_table, VAddr base, u64 size, u8* memory, Pa
LOG_DEBUG(HW_Memory, "Mapping %p onto %08X-%08X", memory, base * PAGE_SIZE,
(base + size) * PAGE_SIZE);
- RasterizerFlushVirtualRegion(base << PAGE_BITS, size * PAGE_SIZE,
- FlushMode::FlushAndInvalidate);
-
VAddr end = base + size;
while (base != end) {
ASSERT_MSG(base < PAGE_TABLE_NUM_ENTRIES, "out of range mapping at %08X", base);
page_table.attributes[base] = type;
page_table.pointers[base] = memory;
- page_table.cached_res_count[base] = 0;
base += 1;
if (memory != nullptr)
@@ -63,157 +60,110 @@ void MapMemoryRegion(PageTable& page_table, VAddr base, u64 size, u8* target) {
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, PageType::Memory);
}
-void MapIoRegion(PageTable& page_table, VAddr base, u64 size, MMIORegionPointer mmio_handler) {
+void MapIoRegion(PageTable& page_table, VAddr base, u64 size, MemoryHookPointer mmio_handler) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: %08X", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: %08X", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, PageType::Special);
- page_table.special_regions.emplace_back(SpecialRegion{base, size, mmio_handler});
+ auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
+ SpecialRegion region{SpecialRegion::Type::IODevice, mmio_handler};
+ page_table.special_regions.add(std::make_pair(interval, std::set<SpecialRegion>{region}));
}
void UnmapRegion(PageTable& page_table, VAddr base, u64 size) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: %08X", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: %08X", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, PageType::Unmapped);
+
+ auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
+ page_table.special_regions.erase(interval);
}
-/**
- * Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
- * using a VMA from the current process
- */
-static u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
- u8* direct_pointer = nullptr;
-
- auto& vm_manager = process.vm_manager;
-
- auto it = vm_manager.FindVMA(vaddr);
- ASSERT(it != vm_manager.vma_map.end());
-
- auto& vma = it->second;
- switch (vma.type) {
- case Kernel::VMAType::AllocatedMemoryBlock:
- direct_pointer = vma.backing_block->data() + vma.offset;
- break;
- case Kernel::VMAType::BackingMemory:
- direct_pointer = vma.backing_memory;
- break;
- case Kernel::VMAType::Free:
- return nullptr;
- default:
- UNREACHABLE();
- }
-
- return direct_pointer + (vaddr - vma.base);
+void AddDebugHook(PageTable& page_table, VAddr base, u64 size, MemoryHookPointer hook) {
+ auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
+ SpecialRegion region{SpecialRegion::Type::DebugHook, hook};
+ page_table.special_regions.add(std::make_pair(interval, std::set<SpecialRegion>{region}));
}
-/**
- * Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
- * using a VMA from the current process.
- */
-static u8* GetPointerFromVMA(VAddr vaddr) {
- return GetPointerFromVMA(*Kernel::g_current_process, vaddr);
+void RemoveDebugHook(PageTable& page_table, VAddr base, u64 size, MemoryHookPointer hook) {
+ auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
+ SpecialRegion region{SpecialRegion::Type::DebugHook, hook};
+ page_table.special_regions.subtract(std::make_pair(interval, std::set<SpecialRegion>{region}));
}
/**
* This function should only be called for virtual addreses with attribute `PageType::Special`.
*/
-static MMIORegionPointer GetMMIOHandler(const PageTable& page_table, VAddr vaddr) {
- for (const auto& region : page_table.special_regions) {
- if (vaddr >= region.base && vaddr < (region.base + region.size)) {
- return region.handler;
+static std::set<MemoryHookPointer> GetSpecialHandlers(const PageTable& page_table, VAddr vaddr,
+ u64 size) {
+ std::set<MemoryHookPointer> result;
+ auto interval = boost::icl::discrete_interval<VAddr>::closed(vaddr, vaddr + size - 1);
+ auto interval_list = page_table.special_regions.equal_range(interval);
+ for (auto it = interval_list.first; it != interval_list.second; ++it) {
+ for (const auto& region : it->second) {
+ result.insert(region.handler);
}
}
- ASSERT_MSG(false, "Mapped IO page without a handler @ %08X", vaddr);
- return nullptr; // Should never happen
+ return result;
}
-static MMIORegionPointer GetMMIOHandler(VAddr vaddr) {
+static std::set<MemoryHookPointer> GetSpecialHandlers(VAddr vaddr, u64 size) {
const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
- return GetMMIOHandler(page_table, vaddr);
+ return GetSpecialHandlers(page_table, vaddr, size);
}
template <typename T>
-T ReadMMIO(MMIORegionPointer mmio_handler, VAddr addr);
+boost::optional<T> ReadSpecial(VAddr addr);
template <typename T>
T Read(const VAddr vaddr) {
- const u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
- if (page_pointer) {
- // NOTE: Avoid adding any extra logic to this fast-path block
+ const PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
+ switch (type) {
+ case PageType::Unmapped:
+ LOG_ERROR(HW_Memory, "unmapped Read%lu @ 0x%016llX", sizeof(T) * 8, vaddr);
+ return 0;
+ case PageType::Special: {
+ if (auto result = ReadSpecial<T>(vaddr))
+ return *result;
+ [[fallthrough]];
+ }
+ case PageType::Memory: {
+ const u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
+ ASSERT_MSG(page_pointer, "Mapped memory page without a pointer @ %08X", vaddr);
+
T value;
std::memcpy(&value, &page_pointer[vaddr & PAGE_MASK], sizeof(T));
return value;
}
-
- // The memory access might do an MMIO or cached access, so we have to lock the HLE kernel state
- std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock);
-
- PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
- switch (type) {
- case PageType::Unmapped:
- LOG_ERROR(HW_Memory, "unmapped Read%lu @ 0x%llx", sizeof(T) * 8, vaddr);
- return 0;
- case PageType::Memory:
- ASSERT_MSG(false, "Mapped memory page without a pointer @ %08X", vaddr);
- break;
- case PageType::RasterizerCachedMemory: {
- RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Flush);
-
- T value;
- std::memcpy(&value, GetPointerFromVMA(vaddr), sizeof(T));
- return value;
- }
- case PageType::Special:
- return ReadMMIO<T>(GetMMIOHandler(vaddr), vaddr);
- case PageType::RasterizerCachedSpecial: {
- RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Flush);
- return ReadMMIO<T>(GetMMIOHandler(vaddr), vaddr);
- }
- default:
- UNREACHABLE();
}
+ UNREACHABLE();
+ return 0;
}
template <typename T>
-void WriteMMIO(MMIORegionPointer mmio_handler, VAddr addr, const T data);
+bool WriteSpecial(VAddr addr, const T data);
template <typename T>
void Write(const VAddr vaddr, const T data) {
- u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
- if (page_pointer) {
- // NOTE: Avoid adding any extra logic to this fast-path block
- std::memcpy(&page_pointer[vaddr & PAGE_MASK], &data, sizeof(T));
- return;
- }
-
- // The memory access might do an MMIO or cached access, so we have to lock the HLE kernel state
- std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock);
-
- PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
+ const PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
switch (type) {
case PageType::Unmapped:
LOG_ERROR(HW_Memory, "unmapped Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, (u32)data,
vaddr);
return;
- case PageType::Memory:
- ASSERT_MSG(false, "Mapped memory page without a pointer @ %08X", vaddr);
- break;
- case PageType::RasterizerCachedMemory: {
- RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::FlushAndInvalidate);
- std::memcpy(GetPointerFromVMA(vaddr), &data, sizeof(T));
- break;
+ case PageType::Special: {
+ if (WriteSpecial<T>(vaddr, data))
+ return;
+ [[fallthrough]];
}
- case PageType::Special:
- WriteMMIO<T>(GetMMIOHandler(vaddr), vaddr, data);
- break;
- case PageType::RasterizerCachedSpecial: {
- RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::FlushAndInvalidate);
- WriteMMIO<T>(GetMMIOHandler(vaddr), vaddr, data);
- break;
+ case PageType::Memory: {
+ u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
+ ASSERT_MSG(page_pointer, "Mapped memory page without a pointer @ %08X", vaddr);
+ std::memcpy(&page_pointer[vaddr & PAGE_MASK], &data, sizeof(T));
+ return;
}
- default:
- UNREACHABLE();
}
+ UNREACHABLE();
}
bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) {
@@ -222,21 +172,20 @@ bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) {
if ((vaddr >> PAGE_BITS) >= PAGE_TABLE_NUM_ENTRIES)
return false;
- const u8* page_pointer = page_table.pointers[vaddr >> PAGE_BITS];
- if (page_pointer)
- return true;
-
- if (page_table.attributes[vaddr >> PAGE_BITS] == PageType::RasterizerCachedMemory)
- return true;
-
- if (page_table.attributes[vaddr >> PAGE_BITS] != PageType::Special)
+ const PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
+ switch (type) {
+ case PageType::Unmapped:
return false;
-
- MMIORegionPointer mmio_region = GetMMIOHandler(page_table, vaddr);
- if (mmio_region) {
- return mmio_region->IsValidAddress(vaddr);
+ case PageType::Memory:
+ return true;
+ case PageType::Special: {
+ for (auto handler : GetSpecialHandlers(page_table, vaddr, 1))
+ if (auto result = handler->IsValidAddress(vaddr))
+ return *result;
+ return current_page_table->pointers[vaddr >> PAGE_BITS] != nullptr;
}
-
+ }
+ UNREACHABLE();
return false;
}
@@ -254,10 +203,6 @@ u8* GetPointer(const VAddr vaddr) {
return page_pointer + (vaddr & PAGE_MASK);
}
- if (current_page_table->attributes[vaddr >> PAGE_BITS] == PageType::RasterizerCachedMemory) {
- return GetPointerFromVMA(vaddr);
- }
-
LOG_ERROR(HW_Memory, "unknown GetPointer @ 0x%08x", vaddr);
return nullptr;
}
@@ -335,97 +280,6 @@ u8* GetPhysicalPointer(PAddr address) {
return target_pointer;
}
-void RasterizerMarkRegionCached(PAddr start, u64 size, int count_delta) {
- if (start == 0) {
- return;
- }
-
- u64 num_pages = ((start + size - 1) >> PAGE_BITS) - (start >> PAGE_BITS) + 1;
- PAddr paddr = start;
-
- for (unsigned i = 0; i < num_pages; ++i, paddr += PAGE_SIZE) {
- boost::optional<VAddr> maybe_vaddr = PhysicalToVirtualAddress(paddr);
- // While the physical <-> virtual mapping is 1:1 for the regions supported by the cache,
- // some games (like Pokemon Super Mystery Dungeon) will try to use textures that go beyond
- // the end address of VRAM, causing the Virtual->Physical translation to fail when flushing
- // parts of the texture.
- if (!maybe_vaddr) {
- LOG_ERROR(HW_Memory,
- "Trying to flush a cached region to an invalid physical address %08X", paddr);
- continue;
- }
- VAddr vaddr = *maybe_vaddr;
-
- u8& res_count = current_page_table->cached_res_count[vaddr >> PAGE_BITS];
- ASSERT_MSG(count_delta <= UINT8_MAX - res_count,
- "Rasterizer resource cache counter overflow!");
- ASSERT_MSG(count_delta >= -res_count, "Rasterizer resource cache counter underflow!");
-
- // Switch page type to cached if now cached
- if (res_count == 0) {
- PageType& page_type = current_page_table->attributes[vaddr >> PAGE_BITS];
- switch (page_type) {
- case PageType::Unmapped:
- // It is not necessary for a process to have this region mapped into its address
- // space, for example, a system module need not have a VRAM mapping.
- break;
- case PageType::Memory:
- page_type = PageType::RasterizerCachedMemory;
- current_page_table->pointers[vaddr >> PAGE_BITS] = nullptr;
- break;
- case PageType::Special:
- page_type = PageType::RasterizerCachedSpecial;
- break;
- default:
- UNREACHABLE();
- }
- }
-
- res_count += count_delta;
-
- // Switch page type to uncached if now uncached
- if (res_count == 0) {
- PageType& page_type = current_page_table->attributes[vaddr >> PAGE_BITS];
- switch (page_type) {
- case PageType::Unmapped:
- // It is not necessary for a process to have this region mapped into its address
- // space, for example, a system module need not have a VRAM mapping.
- break;
- case PageType::RasterizerCachedMemory: {
- u8* pointer = GetPointerFromVMA(vaddr & ~PAGE_MASK);
- if (pointer == nullptr) {
- // It's possible that this function has called been while updating the pagetable
- // after unmapping a VMA. In that case the underlying VMA will no longer exist,
- // and we should just leave the pagetable entry blank.
- page_type = PageType::Unmapped;
- } else {
- page_type = PageType::Memory;
- current_page_table->pointers[vaddr >> PAGE_BITS] = pointer;
- }
- break;
- }
- case PageType::RasterizerCachedSpecial:
- page_type = PageType::Special;
- break;
- default:
- UNREACHABLE();
- }
- }
- }
-}
-
-void RasterizerFlushRegion(PAddr start, u64 size) {}
-
-void RasterizerFlushAndInvalidateRegion(PAddr start, u64 size) {
- // Since pages are unmapped on shutdown after video core is shutdown, the renderer may be
- // null here
-}
-
-void RasterizerFlushVirtualRegion(VAddr start, u64 size, FlushMode mode) {
- // Since pages are unmapped on shutdown after video core is shutdown, the renderer may be
- // null here
-}
-
u8 Read8(const VAddr addr) {
return Read<u8>(addr);
}
@@ -442,6 +296,17 @@ u64 Read64(const VAddr addr) {
return Read<u64_le>(addr);
}
+static bool ReadSpecialBlock(const Kernel::Process& process, const VAddr src_addr,
+ void* dest_buffer, const size_t size) {
+ auto& page_table = process.vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, src_addr, size)) {
+ if (handler->ReadBlock(src_addr, dest_buffer, size)) {
+ return true;
+ }
+ }
+ return false;
+}
+
void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
const size_t size) {
auto& page_table = process.vm_manager.page_table;
@@ -455,11 +320,15 @@ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
switch (page_table.attributes[page_index]) {
- case PageType::Unmapped: {
+ case PageType::Unmapped:
LOG_ERROR(HW_Memory, "unmapped ReadBlock @ 0x%08X (start address = 0xllx, size = %zu)",
current_vaddr, src_addr, size);
std::memset(dest_buffer, 0, copy_amount);
break;
+ case PageType::Special: {
+ if (ReadSpecialBlock(process, current_vaddr, dest_buffer, copy_amount))
+ break;
+ [[fallthrough]];
}
case PageType::Memory: {
DEBUG_ASSERT(page_table.pointers[page_index]);
@@ -468,26 +337,6 @@ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_
std::memcpy(dest_buffer, src_ptr, copy_amount);
break;
}
- case PageType::Special: {
- MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
- DEBUG_ASSERT(handler);
- handler->ReadBlock(current_vaddr, dest_buffer, copy_amount);
- break;
- }
- case PageType::RasterizerCachedMemory: {
- RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
- FlushMode::Flush);
- std::memcpy(dest_buffer, GetPointerFromVMA(process, current_vaddr), copy_amount);
- break;
- }
- case PageType::RasterizerCachedSpecial: {
- MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
- DEBUG_ASSERT(handler);
- RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
- FlushMode::Flush);
- handler->ReadBlock(current_vaddr, dest_buffer, copy_amount);
- break;
- }
default:
UNREACHABLE();
}
@@ -519,6 +368,17 @@ void Write64(const VAddr addr, const u64 data) {
Write<u64_le>(addr, data);
}
+static bool WriteSpecialBlock(const Kernel::Process& process, const VAddr dest_addr,
+ const void* src_buffer, const size_t size) {
+ auto& page_table = process.vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, dest_addr, size)) {
+ if (handler->WriteBlock(dest_addr, src_buffer, size)) {
+ return true;
+ }
+ }
+ return false;
+}
+
void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const void* src_buffer,
const size_t size) {
auto& page_table = process.vm_manager.page_table;
@@ -531,12 +391,15 @@ void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const voi
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
switch (page_table.attributes[page_index]) {
- case PageType::Unmapped: {
+ case PageType::Unmapped:
LOG_ERROR(HW_Memory,
"unmapped WriteBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
current_vaddr, dest_addr, size);
break;
- }
+ case PageType::Special:
+ if (WriteSpecialBlock(process, current_vaddr, src_buffer, copy_amount))
+ break;
+ [[fallthrough]];
case PageType::Memory: {
DEBUG_ASSERT(page_table.pointers[page_index]);
@@ -544,26 +407,6 @@ void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const voi
std::memcpy(dest_ptr, src_buffer, copy_amount);
break;
}
- case PageType::Special: {
- MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
- DEBUG_ASSERT(handler);
- handler->WriteBlock(current_vaddr, src_buffer, copy_amount);
- break;
- }
- case PageType::RasterizerCachedMemory: {
- RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
- FlushMode::FlushAndInvalidate);
- std::memcpy(GetPointerFromVMA(process, current_vaddr), src_buffer, copy_amount);
- break;
- }
- case PageType::RasterizerCachedSpecial: {
- MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
- DEBUG_ASSERT(handler);
- RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
- FlushMode::FlushAndInvalidate);
- handler->WriteBlock(current_vaddr, src_buffer, copy_amount);
- break;
- }
default:
UNREACHABLE();
}
@@ -580,6 +423,8 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size
}
void ZeroBlock(const VAddr dest_addr, const size_t size) {
+ const auto& process = *Kernel::g_current_process;
+
size_t remaining_size = size;
size_t page_index = dest_addr >> PAGE_BITS;
size_t page_offset = dest_addr & PAGE_MASK;
@@ -591,11 +436,14 @@ void ZeroBlock(const VAddr dest_addr, const size_t size) {
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
switch (current_page_table->attributes[page_index]) {
- case PageType::Unmapped: {
+ case PageType::Unmapped:
LOG_ERROR(HW_Memory, "unmapped ZeroBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
current_vaddr, dest_addr, size);
break;
- }
+ case PageType::Special:
+ if (WriteSpecialBlock(process, current_vaddr, zeros.data(), copy_amount))
+ break;
+ [[fallthrough]];
case PageType::Memory: {
DEBUG_ASSERT(current_page_table->pointers[page_index]);
@@ -603,25 +451,6 @@ void ZeroBlock(const VAddr dest_addr, const size_t size) {
std::memset(dest_ptr, 0, copy_amount);
break;
}
- case PageType::Special: {
- DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
-
- GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, zeros.data(), copy_amount);
- break;
- }
- case PageType::RasterizerCachedMemory: {
- RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
- FlushMode::FlushAndInvalidate);
- std::memset(GetPointerFromVMA(current_vaddr), 0, copy_amount);
- break;
- }
- case PageType::RasterizerCachedSpecial: {
- DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
- RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
- FlushMode::FlushAndInvalidate);
- GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, zeros.data(), copy_amount);
- break;
- }
default:
UNREACHABLE();
}
@@ -633,6 +462,8 @@ void ZeroBlock(const VAddr dest_addr, const size_t size) {
}
void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) {
+ const auto& process = *Kernel::g_current_process;
+
size_t remaining_size = size;
size_t page_index = src_addr >> PAGE_BITS;
size_t page_offset = src_addr & PAGE_MASK;
@@ -642,11 +473,18 @@ void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) {
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
switch (current_page_table->attributes[page_index]) {
- case PageType::Unmapped: {
+ case PageType::Unmapped:
LOG_ERROR(HW_Memory, "unmapped CopyBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
current_vaddr, src_addr, size);
ZeroBlock(dest_addr, copy_amount);
break;
+ case PageType::Special: {
+ std::vector<u8> buffer(copy_amount);
+ if (ReadSpecialBlock(process, current_vaddr, buffer.data(), buffer.size())) {
+ WriteBlock(dest_addr, buffer.data(), buffer.size());
+ break;
+ }
+ [[fallthrough]];
}
case PageType::Memory: {
DEBUG_ASSERT(current_page_table->pointers[page_index]);
@@ -654,30 +492,6 @@ void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) {
WriteBlock(dest_addr, src_ptr, copy_amount);
break;
}
- case PageType::Special: {
- DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
-
- std::vector<u8> buffer(copy_amount);
- GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, buffer.data(), buffer.size());
- WriteBlock(dest_addr, buffer.data(), buffer.size());
- break;
- }
- case PageType::RasterizerCachedMemory: {
- RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
- FlushMode::Flush);
- WriteBlock(dest_addr, GetPointerFromVMA(current_vaddr), copy_amount);
- break;
- }
- case PageType::RasterizerCachedSpecial: {
- DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
- RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
- FlushMode::Flush);
-
- std::vector<u8> buffer(copy_amount);
- GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, buffer.data(), buffer.size());
- WriteBlock(dest_addr, buffer.data(), buffer.size());
- break;
- }
default:
UNREACHABLE();
}
@@ -691,43 +505,75 @@ void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) {
}
template <>
-u8 ReadMMIO<u8>(MMIORegionPointer mmio_handler, VAddr addr) {
- return mmio_handler->Read8(addr);
+boost::optional<u8> ReadSpecial<u8>(VAddr addr) {
+ const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u8)))
+ if (auto result = handler->Read8(addr))
+ return *result;
+ return {};
}
template <>
-u16 ReadMMIO<u16>(MMIORegionPointer mmio_handler, VAddr addr) {
- return mmio_handler->Read16(addr);
+boost::optional<u16> ReadSpecial<u16>(VAddr addr) {
+ const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u16)))
+ if (auto result = handler->Read16(addr))
+ return *result;
+ return {};
}
template <>
-u32 ReadMMIO<u32>(MMIORegionPointer mmio_handler, VAddr addr) {
- return mmio_handler->Read32(addr);
+boost::optional<u32> ReadSpecial<u32>(VAddr addr) {
+ const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u32)))
+ if (auto result = handler->Read32(addr))
+ return *result;
+ return {};
}
template <>
-u64 ReadMMIO<u64>(MMIORegionPointer mmio_handler, VAddr addr) {
- return mmio_handler->Read64(addr);
+boost::optional<u64> ReadSpecial<u64>(VAddr addr) {
+ const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u64)))
+ if (auto result = handler->Read64(addr))
+ return *result;
+ return {};
}
template <>
-void WriteMMIO<u8>(MMIORegionPointer mmio_handler, VAddr addr, const u8 data) {
- mmio_handler->Write8(addr, data);
+bool WriteSpecial<u8>(VAddr addr, const u8 data) {
+ const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u8)))
+ if (handler->Write8(addr, data))
+ return true;
+ return false;
}
template <>
-void WriteMMIO<u16>(MMIORegionPointer mmio_handler, VAddr addr, const u16 data) {
- mmio_handler->Write16(addr, data);
+bool WriteSpecial<u16>(VAddr addr, const u16 data) {
+ const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u16)))
+ if (handler->Write16(addr, data))
+ return true;
+ return false;
}
template <>
-void WriteMMIO<u32>(MMIORegionPointer mmio_handler, VAddr addr, const u32 data) {
- mmio_handler->Write32(addr, data);
+bool WriteSpecial<u32>(VAddr addr, const u32 data) {
+ const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u32)))
+ if (handler->Write32(addr, data))
+ return true;
+ return false;
}
template <>
-void WriteMMIO<u64>(MMIORegionPointer mmio_handler, VAddr addr, const u64 data) {
- mmio_handler->Write64(addr, data);
+bool WriteSpecial<u64>(VAddr addr, const u64 data) {
+ const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
+ for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u64)))
+ if (handler->Write64(addr, data))
+ return true;
+ return false;
}
boost::optional<PAddr> TryVirtualToPhysicalAddress(const VAddr addr) {
diff --git a/src/core/memory.h b/src/core/memory.h
index 7e554f394..b2158ca46 100644
--- a/src/core/memory.h
+++ b/src/core/memory.h
@@ -8,10 +8,12 @@
#include <cstddef>
#include <map>
#include <string>
+#include <tuple>
#include <vector>
+#include <boost/icl/interval_map.hpp>
#include <boost/optional.hpp>
#include "common/common_types.h"
-#include "core/mmio.h"
+#include "core/memory_hook.h"
namespace Kernel {
class Process;
@@ -28,32 +30,35 @@ const u64 PAGE_SIZE = 1 << PAGE_BITS;
const u64 PAGE_MASK = PAGE_SIZE - 1;
const size_t PAGE_TABLE_NUM_ENTRIES = 1ULL << (36 - PAGE_BITS);
-enum class PageType {
+enum class PageType : u8 {
/// Page is unmapped and should cause an access error.
Unmapped,
/// Page is mapped to regular memory. This is the only type you can get pointers to.
Memory,
- /// Page is mapped to regular memory, but also needs to check for rasterizer cache flushing and
- /// invalidation
- RasterizerCachedMemory,
- /// Page is mapped to a I/O region. Writing and reading to this page is handled by functions.
+ /// Page is mapped to a memory hook, which intercepts read and write requests.
Special,
- /// Page is mapped to a I/O region, but also needs to check for rasterizer cache flushing and
- /// invalidation
- RasterizerCachedSpecial,
};
struct SpecialRegion {
- VAddr base;
- u64 size;
- MMIORegionPointer handler;
+ enum class Type {
+ DebugHook,
+ IODevice,
+ } type;
+
+ MemoryHookPointer handler;
+
+ bool operator<(const SpecialRegion& other) const {
+ return std::tie(type, handler) < std::tie(other.type, other.handler);
+ }
+
+ bool operator==(const SpecialRegion& other) const {
+ return std::tie(type, handler) == std::tie(other.type, other.handler);
+ }
};
/**
* A (reasonably) fast way of allowing switchable and remappable process address spaces. It loosely
- * mimics the way a real CPU page table works, but instead is optimized for minimal decoding and
- * fetching requirements when accessing. In the usual case of an access to regular memory, it only
- * requires an indexed fetch and a check for NULL.
+ * mimics the way a real CPU page table works.
*/
struct PageTable {
/**
@@ -66,19 +71,13 @@ struct PageTable {
* Contains MMIO handlers that back memory regions whose entries in the `attribute` array is of
* type `Special`.
*/
- std::vector<SpecialRegion> special_regions;
+ boost::icl::interval_map<VAddr, std::set<SpecialRegion>> special_regions;
/**
* Array of fine grained page attributes. If it is set to any value other than `Memory`, then
* the corresponding entry in `pointers` MUST be set to null.
*/
std::array<PageType, PAGE_TABLE_NUM_ENTRIES> attributes;
-
- /**
- * Indicates the number of externally cached resources touching a page that should be
- * flushed before the memory is accessed
- */
- std::array<u8, PAGE_TABLE_NUM_ENTRIES> cached_res_count;
};
/// Physical memory regions as seen from the ARM11
@@ -243,33 +242,4 @@ boost::optional<VAddr> PhysicalToVirtualAddress(PAddr addr);
*/
u8* GetPhysicalPointer(PAddr address);
-/**
- * Adds the supplied value to the rasterizer resource cache counter of each
- * page touching the region.
- */
-void RasterizerMarkRegionCached(PAddr start, u64 size, int count_delta);
-
-/**
- * Flushes any externally cached rasterizer resources touching the given region.
- */
-void RasterizerFlushRegion(PAddr start, u64 size);
-
-/**
- * Flushes and invalidates any externally cached rasterizer resources touching the given region.
- */
-void RasterizerFlushAndInvalidateRegion(PAddr start, u64 size);
-
-enum class FlushMode {
- /// Write back modified surfaces to RAM
- Flush,
- /// Write back modified surfaces to RAM, and also remove them from the cache
- FlushAndInvalidate,
-};
-
-/**
- * Flushes and invalidates any externally cached rasterizer resources touching the given virtual
- * address region.
- */
-void RasterizerFlushVirtualRegion(VAddr start, u64 size, FlushMode mode);
-
} // namespace Memory
diff --git a/src/core/memory_hook.h b/src/core/memory_hook.h
new file mode 100644
index 000000000..feebd850a
--- /dev/null
+++ b/src/core/memory_hook.h
@@ -0,0 +1,46 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <boost/optional.hpp>
+#include "common/common_types.h"
+
+namespace Memory {
+
+/**
+ * Memory hooks have two purposes:
+ * 1. To allow reads and writes to a region of memory to be intercepted. This is used to implement
+ * texture forwarding and memory breakpoints for debugging.
+ * 2. To allow for the implementation of MMIO devices.
+ *
+ * A hook may be mapped to multiple regions of memory.
+ *
+ * If a boost::none or false is returned from a function, the read/write request is passed through
+ * to the underlying memory region.
+ */
+class MemoryHook {
+public:
+ virtual ~MemoryHook() = default;
+
+ virtual boost::optional<bool> IsValidAddress(VAddr addr) = 0;
+
+ virtual boost::optional<u8> Read8(VAddr addr) = 0;
+ virtual boost::optional<u16> Read16(VAddr addr) = 0;
+ virtual boost::optional<u32> Read32(VAddr addr) = 0;
+ virtual boost::optional<u64> Read64(VAddr addr) = 0;
+
+ virtual bool ReadBlock(VAddr src_addr, void* dest_buffer, size_t size) = 0;
+
+ virtual bool Write8(VAddr addr, u8 data) = 0;
+ virtual bool Write16(VAddr addr, u16 data) = 0;
+ virtual bool Write32(VAddr addr, u32 data) = 0;
+ virtual bool Write64(VAddr addr, u64 data) = 0;
+
+ virtual bool WriteBlock(VAddr dest_addr, const void* src_buffer, size_t size) = 0;
+};
+
+using MemoryHookPointer = std::shared_ptr<MemoryHook>;
+} // namespace Memory
diff --git a/src/core/memory_setup.h b/src/core/memory_setup.h
index 6f82a131e..9a1a4f4be 100644
--- a/src/core/memory_setup.h
+++ b/src/core/memory_setup.h
@@ -5,7 +5,7 @@
#pragma once
#include "common/common_types.h"
-#include "core/mmio.h"
+#include "core/memory_hook.h"
namespace Memory {
@@ -26,7 +26,11 @@ void MapMemoryRegion(PageTable& page_table, VAddr base, u64 size, u8* target);
* @param size The amount of bytes to map. Must be page-aligned.
* @param mmio_handler The handler that backs the mapping.
*/
-void MapIoRegion(PageTable& page_table, VAddr base, u64 size, MMIORegionPointer mmio_handler);
+void MapIoRegion(PageTable& page_table, VAddr base, u64 size, MemoryHookPointer mmio_handler);
void UnmapRegion(PageTable& page_table, VAddr base, u64 size);
+
+void AddDebugHook(PageTable& page_table, VAddr base, u64 size, MemoryHookPointer hook);
+void RemoveDebugHook(PageTable& page_table, VAddr base, u64 size, MemoryHookPointer hook);
+
} // namespace Memory
diff --git a/src/core/mmio.h b/src/core/mmio.h
deleted file mode 100644
index 5e3cc01af..000000000
--- a/src/core/mmio.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2016 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <memory>
-#include "common/common_types.h"
-
-namespace Memory {
-
-/**
- * Represents a device with memory mapped IO.
- * A device may be mapped to multiple regions of memory.
- */
-class MMIORegion {
-public:
- virtual ~MMIORegion() = default;
-
- virtual bool IsValidAddress(VAddr addr) = 0;
-
- virtual u8 Read8(VAddr addr) = 0;
- virtual u16 Read16(VAddr addr) = 0;
- virtual u32 Read32(VAddr addr) = 0;
- virtual u64 Read64(VAddr addr) = 0;
-
- virtual bool ReadBlock(VAddr src_addr, void* dest_buffer, size_t size) = 0;
-
- virtual void Write8(VAddr addr, u8 data) = 0;
- virtual void Write16(VAddr addr, u16 data) = 0;
- virtual void Write32(VAddr addr, u32 data) = 0;
- virtual void Write64(VAddr addr, u64 data) = 0;
-
- virtual bool WriteBlock(VAddr dest_addr, const void* src_buffer, size_t size) = 0;
-};
-
-using MMIORegionPointer = std::shared_ptr<MMIORegion>;
-}; // namespace Memory
diff --git a/src/tests/core/arm/arm_test_common.cpp b/src/tests/core/arm/arm_test_common.cpp
index 2339bdfb8..88bbbc95c 100644
--- a/src/tests/core/arm/arm_test_common.cpp
+++ b/src/tests/core/arm/arm_test_common.cpp
@@ -19,8 +19,8 @@ TestEnvironment::TestEnvironment(bool mutable_memory_)
page_table = &Kernel::g_current_process->vm_manager.page_table;
page_table->pointers.fill(nullptr);
+ page_table->special_regions.clear();
page_table->attributes.fill(Memory::PageType::Unmapped);
- page_table->cached_res_count.fill(0);
Memory::MapIoRegion(*page_table, 0x00000000, 0x80000000, test_memory);
Memory::MapIoRegion(*page_table, 0x80000000, 0x80000000, test_memory);
@@ -62,11 +62,11 @@ void TestEnvironment::ClearWriteRecords() {
TestEnvironment::TestMemory::~TestMemory() {}
-bool TestEnvironment::TestMemory::IsValidAddress(VAddr addr) {
+boost::optional<bool> TestEnvironment::TestMemory::IsValidAddress(VAddr addr) {
return true;
}
-u8 TestEnvironment::TestMemory::Read8(VAddr addr) {
+boost::optional<u8> TestEnvironment::TestMemory::Read8(VAddr addr) {
auto iter = data.find(addr);
if (iter == data.end()) {
return addr; // Some arbitrary data
@@ -74,16 +74,16 @@ u8 TestEnvironment::TestMemory::Read8(VAddr addr) {
return iter->second;
}
-u16 TestEnvironment::TestMemory::Read16(VAddr addr) {
- return Read8(addr) | static_cast<u16>(Read8(addr + 1)) << 8;
+boost::optional<u16> TestEnvironment::TestMemory::Read16(VAddr addr) {
+ return *Read8(addr) | static_cast<u16>(*Read8(addr + 1)) << 8;
}
-u32 TestEnvironment::TestMemory::Read32(VAddr addr) {
- return Read16(addr) | static_cast<u32>(Read16(addr + 2)) << 16;
+boost::optional<u32> TestEnvironment::TestMemory::Read32(VAddr addr) {
+ return *Read16(addr) | static_cast<u32>(*Read16(addr + 2)) << 16;
}
-u64 TestEnvironment::TestMemory::Read64(VAddr addr) {
- return Read32(addr) | static_cast<u64>(Read32(addr + 4)) << 32;
+boost::optional<u64> TestEnvironment::TestMemory::Read64(VAddr addr) {
+ return *Read32(addr) | static_cast<u64>(*Read32(addr + 4)) << 32;
}
bool TestEnvironment::TestMemory::ReadBlock(VAddr src_addr, void* dest_buffer, size_t size) {
@@ -91,34 +91,38 @@ bool TestEnvironment::TestMemory::ReadBlock(VAddr src_addr, void* dest_buffer, s
u8* data = static_cast<u8*>(dest_buffer);
for (size_t i = 0; i < size; i++, addr++, data++) {
- *data = Read8(addr);
+ *data = *Read8(addr);
}
return true;
}
-void TestEnvironment::TestMemory::Write8(VAddr addr, u8 data) {
+bool TestEnvironment::TestMemory::Write8(VAddr addr, u8 data) {
env->write_records.emplace_back(8, addr, data);
if (env->mutable_memory)
env->SetMemory8(addr, data);
+ return true;
}
-void TestEnvironment::TestMemory::Write16(VAddr addr, u16 data) {
+bool TestEnvironment::TestMemory::Write16(VAddr addr, u16 data) {
env->write_records.emplace_back(16, addr, data);
if (env->mutable_memory)
env->SetMemory16(addr, data);
+ return true;
}
-void TestEnvironment::TestMemory::Write32(VAddr addr, u32 data) {
+bool TestEnvironment::TestMemory::Write32(VAddr addr, u32 data) {
env->write_records.emplace_back(32, addr, data);
if (env->mutable_memory)
env->SetMemory32(addr, data);
+ return true;
}
-void TestEnvironment::TestMemory::Write64(VAddr addr, u64 data) {
+bool TestEnvironment::TestMemory::Write64(VAddr addr, u64 data) {
env->write_records.emplace_back(64, addr, data);
if (env->mutable_memory)
env->SetMemory64(addr, data);
+ return true;
}
bool TestEnvironment::TestMemory::WriteBlock(VAddr dest_addr, const void* src_buffer, size_t size) {
diff --git a/src/tests/core/arm/arm_test_common.h b/src/tests/core/arm/arm_test_common.h
index 592c28594..b66922d61 100644
--- a/src/tests/core/arm/arm_test_common.h
+++ b/src/tests/core/arm/arm_test_common.h
@@ -7,7 +7,7 @@
#include <vector>
#include "common/common_types.h"
-#include "core/mmio.h"
+#include "core/memory_hook.h"
namespace ArmTests {
@@ -51,25 +51,25 @@ public:
private:
friend struct TestMemory;
- struct TestMemory final : Memory::MMIORegion {
+ struct TestMemory final : Memory::MemoryHook {
explicit TestMemory(TestEnvironment* env_) : env(env_) {}
TestEnvironment* env;
~TestMemory() override;
- bool IsValidAddress(VAddr addr) override;
+ boost::optional<bool> IsValidAddress(VAddr addr) override;
- u8 Read8(VAddr addr) override;
- u16 Read16(VAddr addr) override;
- u32 Read32(VAddr addr) override;
- u64 Read64(VAddr addr) override;
+ boost::optional<u8> Read8(VAddr addr) override;
+ boost::optional<u16> Read16(VAddr addr) override;
+ boost::optional<u32> Read32(VAddr addr) override;
+ boost::optional<u64> Read64(VAddr addr) override;
bool ReadBlock(VAddr src_addr, void* dest_buffer, size_t size) override;
- void Write8(VAddr addr, u8 data) override;
- void Write16(VAddr addr, u16 data) override;
- void Write32(VAddr addr, u32 data) override;
- void Write64(VAddr addr, u64 data) override;
+ bool Write8(VAddr addr, u8 data) override;
+ bool Write16(VAddr addr, u16 data) override;
+ bool Write32(VAddr addr, u32 data) override;
+ bool Write64(VAddr addr, u64 data) override;
bool WriteBlock(VAddr dest_addr, const void* src_buffer, size_t size) override;
diff --git a/src/video_core/renderer_opengl/renderer_opengl.cpp b/src/video_core/renderer_opengl/renderer_opengl.cpp
index 50396b5c1..8c23128ae 100644
--- a/src/video_core/renderer_opengl/renderer_opengl.cpp
+++ b/src/video_core/renderer_opengl/renderer_opengl.cpp
@@ -266,7 +266,7 @@ void RendererOpenGL::LoadFBToScreenInfo(const FramebufferInfo& framebuffer_info,
screen_info.display_texture = screen_info.texture.resource.handle;
screen_info.display_texcoords = MathUtil::Rectangle<float>(0.f, 0.f, 1.f, 1.f);
- Memory::RasterizerFlushRegion(framebuffer_info.address, size_in_bytes);
+ // Memory::RasterizerFlushRegion(framebuffer_info.address, size_in_bytes);
state.texture_units[0].texture_2d = screen_info.texture.resource.handle;
state.Apply();