diff options
Diffstat (limited to 'src/core/hle/kernel/transfer_memory.cpp')
-rw-r--r-- | src/core/hle/kernel/transfer_memory.cpp | 104 |
1 files changed, 9 insertions, 95 deletions
diff --git a/src/core/hle/kernel/transfer_memory.cpp b/src/core/hle/kernel/transfer_memory.cpp index f2d3f8b49..765f408c3 100644 --- a/src/core/hle/kernel/transfer_memory.cpp +++ b/src/core/hle/kernel/transfer_memory.cpp @@ -2,17 +2,16 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. -#include "core/hle/kernel/errors.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/memory/page_table.h" #include "core/hle/kernel/process.h" -#include "core/hle/kernel/shared_memory.h" #include "core/hle/kernel/transfer_memory.h" #include "core/hle/result.h" #include "core/memory.h" namespace Kernel { -TransferMemory::TransferMemory(KernelCore& kernel, Memory::Memory& memory) +TransferMemory::TransferMemory(KernelCore& kernel, Core::Memory::Memory& memory) : Object{kernel}, memory{memory} {} TransferMemory::~TransferMemory() { @@ -20,14 +19,15 @@ TransferMemory::~TransferMemory() { Reset(); } -std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel, Memory::Memory& memory, - VAddr base_address, u64 size, - MemoryPermission permissions) { +std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel, + Core::Memory::Memory& memory, + VAddr base_address, std::size_t size, + Memory::MemoryPermission permissions) { std::shared_ptr<TransferMemory> transfer_memory{ std::make_shared<TransferMemory>(kernel, memory)}; transfer_memory->base_address = base_address; - transfer_memory->memory_size = size; + transfer_memory->size = size; transfer_memory->owner_permissions = permissions; transfer_memory->owner_process = kernel.CurrentProcess(); @@ -38,98 +38,12 @@ const u8* TransferMemory::GetPointer() const { return memory.GetPointer(base_address); } -u64 TransferMemory::GetSize() const { - return memory_size; -} - -ResultCode TransferMemory::MapMemory(VAddr address, u64 size, MemoryPermission permissions) { - if (memory_size != size) { - return ERR_INVALID_SIZE; - } - - if (owner_permissions != permissions) { - return ERR_INVALID_STATE; - } - - if (is_mapped) { - return ERR_INVALID_STATE; - } - - backing_block = std::make_shared<PhysicalMemory>(size); - - const auto map_state = owner_permissions == MemoryPermission::None - ? MemoryState::TransferMemoryIsolated - : MemoryState::TransferMemory; - auto& vm_manager = owner_process->VMManager(); - const auto map_result = vm_manager.MapMemoryBlock(address, backing_block, 0, size, map_state); - if (map_result.Failed()) { - return map_result.Code(); - } - - is_mapped = true; - return RESULT_SUCCESS; -} - ResultCode TransferMemory::Reserve() { - auto& vm_manager{owner_process->VMManager()}; - const auto check_range_result{vm_manager.CheckRangeState( - base_address, memory_size, MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, - MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, VMAPermission::All, - VMAPermission::ReadWrite, MemoryAttribute::Mask, MemoryAttribute::None, - MemoryAttribute::IpcAndDeviceMapped)}; - - if (check_range_result.Failed()) { - return check_range_result.Code(); - } - - auto [state_, permissions_, attribute] = *check_range_result; - - if (const auto result{vm_manager.ReprotectRange( - base_address, memory_size, SharedMemory::ConvertPermissions(owner_permissions))}; - result.IsError()) { - return result; - } - - return vm_manager.SetMemoryAttribute(base_address, memory_size, MemoryAttribute::Mask, - attribute | MemoryAttribute::Locked); + return owner_process->PageTable().ReserveTransferMemory(base_address, size, owner_permissions); } ResultCode TransferMemory::Reset() { - auto& vm_manager{owner_process->VMManager()}; - if (const auto result{vm_manager.CheckRangeState( - base_address, memory_size, - MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, - MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, VMAPermission::None, - VMAPermission::None, MemoryAttribute::Mask, MemoryAttribute::Locked, - MemoryAttribute::IpcAndDeviceMapped)}; - result.Failed()) { - return result.Code(); - } - - if (const auto result{ - vm_manager.ReprotectRange(base_address, memory_size, VMAPermission::ReadWrite)}; - result.IsError()) { - return result; - } - - return vm_manager.SetMemoryAttribute(base_address, memory_size, MemoryAttribute::Mask, - MemoryAttribute::None); -} - -ResultCode TransferMemory::UnmapMemory(VAddr address, u64 size) { - if (memory_size != size) { - return ERR_INVALID_SIZE; - } - - auto& vm_manager = owner_process->VMManager(); - const auto result = vm_manager.UnmapRange(address, size); - - if (result.IsError()) { - return result; - } - - is_mapped = false; - return RESULT_SUCCESS; + return owner_process->PageTable().ResetTransferMemory(base_address, size); } } // namespace Kernel |