mirror of
https://git.suyu.dev/suyu/suyu
synced 2024-11-01 12:57:52 +00:00
kernel: memory: Add MemoryBlock class, for managing memory blocks and their state.
This commit is contained in:
bunnei
parent
ea5ee9918e
commit
c2f4dcb1e3
2 changed files with 316 additions and 0 deletions
|
|
@ -156,6 +156,7 @@ add_library(core STATIC
|
|||
hle/kernel/kernel.h
|
||||
hle/kernel/memory/address_space_info.cpp
|
||||
hle/kernel/memory/address_space_info.h
|
||||
hle/kernel/memory/memory_block.h
|
||||
hle/kernel/memory/memory_types.h
|
||||
hle/kernel/memory/slab_heap.h
|
||||
hle/kernel/mutex.cpp
|
||||
|
|
|
|||
315
src/core/hle/kernel/memory/memory_block.h
Normal file
315
src/core/hle/kernel/memory/memory_block.h
Normal file
|
|
@ -0,0 +1,315 @@
|
|||
// Copyright 2020 yuzu Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "common/alignment.h"
|
||||
#include "common/assert.h"
|
||||
#include "common/common_types.h"
|
||||
#include "core/hle/kernel/memory/memory_types.h"
|
||||
#include "core/hle/kernel/svc_types.h"
|
||||
|
||||
namespace Kernel::Memory {
|
||||
|
||||
enum class MemoryState : u32 {
|
||||
None = 0,
|
||||
Mask = 0xFFFFFFFF, // TODO(bunnei): This should probable be 0xFF
|
||||
All = ~None,
|
||||
|
||||
FlagCanReprotect = (1 << 8),
|
||||
FlagCanDebug = (1 << 9),
|
||||
FlagCanUseIpc = (1 << 10),
|
||||
FlagCanUseNonDeviceIpc = (1 << 11),
|
||||
FlagCanUseNonSecureIpc = (1 << 12),
|
||||
FlagMapped = (1 << 13),
|
||||
FlagCode = (1 << 14),
|
||||
FlagCanAlias = (1 << 15),
|
||||
FlagCanCodeAlias = (1 << 16),
|
||||
FlagCanTransfer = (1 << 17),
|
||||
FlagCanQueryPhysical = (1 << 18),
|
||||
FlagCanDeviceMap = (1 << 19),
|
||||
FlagCanAlignedDeviceMap = (1 << 20),
|
||||
FlagCanIpcUserBuffer = (1 << 21),
|
||||
FlagReferenceCounted = (1 << 22),
|
||||
FlagCanMapProcess = (1 << 23),
|
||||
FlagCanChangeAttribute = (1 << 24),
|
||||
FlagCanCodeMemory = (1 << 25),
|
||||
|
||||
FlagsData = FlagCanReprotect | FlagCanUseIpc | FlagCanUseNonDeviceIpc | FlagCanUseNonSecureIpc |
|
||||
FlagMapped | FlagCanAlias | FlagCanTransfer | FlagCanQueryPhysical |
|
||||
FlagCanDeviceMap | FlagCanAlignedDeviceMap | FlagCanIpcUserBuffer |
|
||||
FlagReferenceCounted | FlagCanChangeAttribute,
|
||||
|
||||
FlagsCode = FlagCanDebug | FlagCanUseIpc | FlagCanUseNonDeviceIpc | FlagCanUseNonSecureIpc |
|
||||
FlagMapped | FlagCode | FlagCanQueryPhysical | FlagCanDeviceMap |
|
||||
FlagCanAlignedDeviceMap | FlagReferenceCounted,
|
||||
|
||||
FlagsMisc = FlagMapped | FlagReferenceCounted | FlagCanQueryPhysical | FlagCanDeviceMap,
|
||||
|
||||
Free = static_cast<u32>(Svc::MemoryState::Free),
|
||||
Io = static_cast<u32>(Svc::MemoryState::Io) | FlagMapped,
|
||||
Static = static_cast<u32>(Svc::MemoryState::Static) | FlagMapped | FlagCanQueryPhysical,
|
||||
Code = static_cast<u32>(Svc::MemoryState::Code) | FlagsCode | FlagCanMapProcess,
|
||||
CodeData = static_cast<u32>(Svc::MemoryState::CodeData) | FlagsData | FlagCanMapProcess |
|
||||
FlagCanCodeMemory,
|
||||
Shared = static_cast<u32>(Svc::MemoryState::Shared) | FlagMapped | FlagReferenceCounted,
|
||||
Normal = static_cast<u32>(Svc::MemoryState::Normal) | FlagsData | FlagCanCodeMemory,
|
||||
|
||||
AliasCode = static_cast<u32>(Svc::MemoryState::AliasCode) | FlagsCode | FlagCanMapProcess |
|
||||
FlagCanCodeAlias,
|
||||
AliasCodeData = static_cast<u32>(Svc::MemoryState::AliasCodeData) | FlagsData |
|
||||
FlagCanMapProcess | FlagCanCodeAlias | FlagCanCodeMemory,
|
||||
|
||||
Ipc = static_cast<u32>(Svc::MemoryState::Ipc) | FlagsMisc | FlagCanAlignedDeviceMap |
|
||||
FlagCanUseIpc | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
|
||||
|
||||
Stack = static_cast<u32>(Svc::MemoryState::Stack) | FlagsMisc | FlagCanAlignedDeviceMap |
|
||||
FlagCanUseIpc | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
|
||||
|
||||
ThreadLocal =
|
||||
static_cast<u32>(Svc::MemoryState::ThreadLocal) | FlagMapped | FlagReferenceCounted,
|
||||
|
||||
Transfered = static_cast<u32>(Svc::MemoryState::Transfered) | FlagsMisc |
|
||||
FlagCanAlignedDeviceMap | FlagCanChangeAttribute | FlagCanUseIpc |
|
||||
FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
|
||||
|
||||
SharedTransfered = static_cast<u32>(Svc::MemoryState::SharedTransfered) | FlagsMisc |
|
||||
FlagCanAlignedDeviceMap | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
|
||||
|
||||
SharedCode = static_cast<u32>(Svc::MemoryState::SharedCode) | FlagMapped |
|
||||
FlagReferenceCounted | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
|
||||
|
||||
Inaccessible = static_cast<u32>(Svc::MemoryState::Inaccessible),
|
||||
|
||||
NonSecureIpc = static_cast<u32>(Svc::MemoryState::NonSecureIpc) | FlagsMisc |
|
||||
FlagCanAlignedDeviceMap | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc,
|
||||
|
||||
NonDeviceIpc =
|
||||
static_cast<u32>(Svc::MemoryState::NonDeviceIpc) | FlagsMisc | FlagCanUseNonDeviceIpc,
|
||||
|
||||
Kernel = static_cast<u32>(Svc::MemoryState::Kernel) | FlagMapped,
|
||||
|
||||
GeneratedCode = static_cast<u32>(Svc::MemoryState::GeneratedCode) | FlagMapped |
|
||||
FlagReferenceCounted | FlagCanDebug,
|
||||
CodeOut = static_cast<u32>(Svc::MemoryState::CodeOut) | FlagMapped | FlagReferenceCounted,
|
||||
};
|
||||
DECLARE_ENUM_FLAG_OPERATORS(MemoryState);
|
||||
|
||||
static_assert(static_cast<u32>(MemoryState::Free) == 0x00000000);
|
||||
static_assert(static_cast<u32>(MemoryState::Io) == 0x00002001);
|
||||
static_assert(static_cast<u32>(MemoryState::Static) == 0x00042002);
|
||||
static_assert(static_cast<u32>(MemoryState::Code) == 0x00DC7E03);
|
||||
static_assert(static_cast<u32>(MemoryState::CodeData) == 0x03FEBD04);
|
||||
static_assert(static_cast<u32>(MemoryState::Normal) == 0x037EBD05);
|
||||
static_assert(static_cast<u32>(MemoryState::Shared) == 0x00402006);
|
||||
static_assert(static_cast<u32>(MemoryState::AliasCode) == 0x00DD7E08);
|
||||
static_assert(static_cast<u32>(MemoryState::AliasCodeData) == 0x03FFBD09);
|
||||
static_assert(static_cast<u32>(MemoryState::Ipc) == 0x005C3C0A);
|
||||
static_assert(static_cast<u32>(MemoryState::Stack) == 0x005C3C0B);
|
||||
static_assert(static_cast<u32>(MemoryState::ThreadLocal) == 0x0040200C);
|
||||
static_assert(static_cast<u32>(MemoryState::Transfered) == 0x015C3C0D);
|
||||
static_assert(static_cast<u32>(MemoryState::SharedTransfered) == 0x005C380E);
|
||||
static_assert(static_cast<u32>(MemoryState::SharedCode) == 0x0040380F);
|
||||
static_assert(static_cast<u32>(MemoryState::Inaccessible) == 0x00000010);
|
||||
static_assert(static_cast<u32>(MemoryState::NonSecureIpc) == 0x005C3811);
|
||||
static_assert(static_cast<u32>(MemoryState::NonDeviceIpc) == 0x004C2812);
|
||||
static_assert(static_cast<u32>(MemoryState::Kernel) == 0x00002013);
|
||||
static_assert(static_cast<u32>(MemoryState::GeneratedCode) == 0x00402214);
|
||||
static_assert(static_cast<u32>(MemoryState::CodeOut) == 0x00402015);
|
||||
|
||||
enum class MemoryPermission : u8 {
|
||||
None = 0,
|
||||
Mask = static_cast<u8>(~None),
|
||||
|
||||
Read = 1 << 0,
|
||||
Write = 1 << 1,
|
||||
Execute = 1 << 2,
|
||||
|
||||
ReadAndWrite = Read | Write,
|
||||
ReadAndExecute = Read | Execute,
|
||||
|
||||
UserMask = static_cast<u8>(Svc::MemoryPermission::Read | Svc::MemoryPermission::Write |
|
||||
Svc::MemoryPermission::Execute),
|
||||
};
|
||||
DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission);
|
||||
|
||||
enum class MemoryAttribute : u8 {
|
||||
None = 0x00,
|
||||
Mask = 0x7F,
|
||||
All = Mask,
|
||||
DontCareMask = 0x80,
|
||||
|
||||
Locked = static_cast<u8>(Svc::MemoryAttribute::Locked),
|
||||
IpcLocked = static_cast<u8>(Svc::MemoryAttribute::IpcLocked),
|
||||
DeviceShared = static_cast<u8>(Svc::MemoryAttribute::DeviceShared),
|
||||
Uncached = static_cast<u8>(Svc::MemoryAttribute::Uncached),
|
||||
|
||||
IpcAndDeviceMapped = IpcLocked | DeviceShared,
|
||||
LockedAndIpcLocked = Locked | IpcLocked,
|
||||
DeviceSharedAndUncached = DeviceShared | Uncached
|
||||
};
|
||||
DECLARE_ENUM_FLAG_OPERATORS(MemoryAttribute);
|
||||
|
||||
static_assert((static_cast<u8>(MemoryAttribute::Mask) &
|
||||
static_cast<u8>(MemoryAttribute::DontCareMask)) == 0);
|
||||
|
||||
struct MemoryInfo {
|
||||
VAddr addr{};
|
||||
std::size_t size{};
|
||||
MemoryState state{};
|
||||
MemoryPermission perm{};
|
||||
MemoryAttribute attribute{};
|
||||
MemoryPermission original_perm{};
|
||||
u16 ipc_lock_count{};
|
||||
u16 device_use_count{};
|
||||
|
||||
constexpr Svc::MemoryInfo GetSvcMemoryInfo() const {
|
||||
return {
|
||||
addr,
|
||||
size,
|
||||
static_cast<Svc::MemoryState>(state & MemoryState::Mask),
|
||||
static_cast<Svc::MemoryAttribute>(attribute & MemoryAttribute::Mask),
|
||||
static_cast<Svc::MemoryPermission>(perm & MemoryPermission::UserMask),
|
||||
ipc_lock_count,
|
||||
device_use_count,
|
||||
};
|
||||
}
|
||||
|
||||
constexpr VAddr GetAddress() const {
|
||||
return addr;
|
||||
}
|
||||
constexpr std::size_t GetSize() const {
|
||||
return size;
|
||||
}
|
||||
constexpr std::size_t GetNumPages() const {
|
||||
return GetSize() / PageSize;
|
||||
}
|
||||
constexpr VAddr GetEndAddress() const {
|
||||
return GetAddress() + GetSize();
|
||||
}
|
||||
constexpr VAddr GetLastAddress() const {
|
||||
return GetEndAddress() - 1;
|
||||
}
|
||||
};
|
||||
|
||||
class MemoryBlock final {
|
||||
friend class MemoryBlockManager;
|
||||
|
||||
private:
|
||||
VAddr addr{};
|
||||
std::size_t num_pages{};
|
||||
MemoryState state{MemoryState::None};
|
||||
u16 ipc_lock_count{};
|
||||
u16 device_use_count{};
|
||||
MemoryPermission perm{MemoryPermission::None};
|
||||
MemoryPermission original_perm{MemoryPermission::None};
|
||||
MemoryAttribute attribute{MemoryAttribute::None};
|
||||
|
||||
public:
|
||||
static constexpr int Compare(const MemoryBlock& lhs, const MemoryBlock& rhs) {
|
||||
if (lhs.GetAddress() < rhs.GetAddress()) {
|
||||
return -1;
|
||||
} else if (lhs.GetAddress() <= rhs.GetLastAddress()) {
|
||||
return 0;
|
||||
} else {
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
public:
|
||||
constexpr MemoryBlock() = default;
|
||||
constexpr MemoryBlock(VAddr addr, std::size_t num_pages, MemoryState state,
|
||||
MemoryPermission perm, MemoryAttribute attribute)
|
||||
: addr{addr}, num_pages(num_pages), state{state}, perm{perm}, attribute{attribute} {}
|
||||
|
||||
constexpr VAddr GetAddress() const {
|
||||
return addr;
|
||||
}
|
||||
|
||||
constexpr std::size_t GetNumPages() const {
|
||||
return num_pages;
|
||||
}
|
||||
|
||||
constexpr std::size_t GetSize() const {
|
||||
return GetNumPages() * PageSize;
|
||||
}
|
||||
|
||||
constexpr VAddr GetEndAddress() const {
|
||||
return GetAddress() + GetSize();
|
||||
}
|
||||
|
||||
constexpr VAddr GetLastAddress() const {
|
||||
return GetEndAddress() - 1;
|
||||
}
|
||||
|
||||
constexpr MemoryInfo GetMemoryInfo() const {
|
||||
return {
|
||||
GetAddress(), GetSize(), state, perm,
|
||||
attribute, original_perm, ipc_lock_count, device_use_count,
|
||||
};
|
||||
}
|
||||
|
||||
private:
|
||||
constexpr bool HasProperties(MemoryState s, MemoryPermission p, MemoryAttribute a) const {
|
||||
constexpr MemoryAttribute AttributeIgnoreMask{MemoryAttribute::DontCareMask |
|
||||
MemoryAttribute::IpcLocked |
|
||||
MemoryAttribute::DeviceShared};
|
||||
return state == s && perm == p &&
|
||||
(attribute | AttributeIgnoreMask) == (a | AttributeIgnoreMask);
|
||||
}
|
||||
|
||||
constexpr bool HasSameProperties(const MemoryBlock& rhs) const {
|
||||
return state == rhs.state && perm == rhs.perm && original_perm == rhs.original_perm &&
|
||||
attribute == rhs.attribute && ipc_lock_count == rhs.ipc_lock_count &&
|
||||
device_use_count == rhs.device_use_count;
|
||||
}
|
||||
|
||||
constexpr bool Contains(VAddr start) const {
|
||||
return GetAddress() <= start && start <= GetEndAddress();
|
||||
}
|
||||
|
||||
constexpr void Add(std::size_t count) {
|
||||
ASSERT(count > 0);
|
||||
ASSERT(GetAddress() + count * PageSize - 1 < GetEndAddress() + count * PageSize - 1);
|
||||
|
||||
num_pages += count;
|
||||
}
|
||||
|
||||
constexpr void Update(MemoryState new_state, MemoryPermission new_perm,
|
||||
MemoryAttribute new_attribute) {
|
||||
ASSERT(original_perm == MemoryPermission::None);
|
||||
ASSERT((attribute & MemoryAttribute::IpcLocked) == MemoryAttribute::None);
|
||||
|
||||
state = new_state;
|
||||
perm = new_perm;
|
||||
|
||||
// TODO(bunnei): Is this right?
|
||||
attribute = static_cast<MemoryAttribute>(
|
||||
new_attribute /*| (attribute & (MemoryAttribute::IpcLocked | MemoryAttribute::DeviceShared))*/);
|
||||
}
|
||||
|
||||
constexpr MemoryBlock Split(VAddr split_addr) {
|
||||
ASSERT(GetAddress() < split_addr);
|
||||
ASSERT(Contains(split_addr));
|
||||
ASSERT(Common::IsAligned(split_addr, PageSize));
|
||||
|
||||
MemoryBlock block;
|
||||
block.addr = addr;
|
||||
block.num_pages = (split_addr - GetAddress()) / PageSize;
|
||||
block.state = state;
|
||||
block.ipc_lock_count = ipc_lock_count;
|
||||
block.device_use_count = device_use_count;
|
||||
block.perm = perm;
|
||||
block.original_perm = original_perm;
|
||||
block.attribute = attribute;
|
||||
|
||||
addr = split_addr;
|
||||
num_pages -= block.num_pages;
|
||||
|
||||
return block;
|
||||
}
|
||||
};
|
||||
static_assert(std::is_trivially_destructible<MemoryBlock>::value);
|
||||
|
||||
} // namespace Kernel::Memory
|
||||
Loading…
Reference in a new issue