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hle: kernel: KMemoryRegion: Derive region values.

pull/15/merge
bunnei 5 years ago
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5872561077
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3fb64da452
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  1. 327
      src/core/hle/kernel/k_memory_region_type.h

327
src/core/hle/kernel/k_memory_region_type.h
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@ -4,6 +4,8 @@
#pragma once
#include "common/bit_util.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
namespace Kernel {
@ -18,5 +20,330 @@ enum class KMemoryRegionAttr : typename std::underlying_type<KMemoryRegionType>:
NoUserMap = 0x40000000,
LinearMapped = 0x80000000,
};
DECLARE_ENUM_FLAG_OPERATORS(KMemoryRegionAttr);
namespace impl {
constexpr size_t BitsForDeriveSparse(size_t n) {
return n + 1;
}
constexpr size_t BitsForDeriveDense(size_t n) {
size_t low = 0, high = 1;
for (size_t i = 0; i < n - 1; ++i) {
if ((++low) == high) {
++high;
low = 0;
}
}
return high + 1;
}
class KMemoryRegionTypeValue {
private:
using ValueType = typename std::underlying_type<KMemoryRegionType>::type;
private:
ValueType m_value{};
size_t m_next_bit{};
bool m_finalized{};
bool m_sparse_only{};
bool m_dense_only{};
private:
constexpr KMemoryRegionTypeValue(ValueType v) : m_value(v) {}
public:
constexpr KMemoryRegionTypeValue() = default;
constexpr operator KMemoryRegionType() const {
return static_cast<KMemoryRegionType>(m_value);
}
constexpr ValueType GetValue() const {
return m_value;
}
constexpr const KMemoryRegionTypeValue& Finalize() {
m_finalized = true;
return *this;
}
constexpr const KMemoryRegionTypeValue& SetSparseOnly() {
m_sparse_only = true;
return *this;
}
constexpr const KMemoryRegionTypeValue& SetDenseOnly() {
m_dense_only = true;
return *this;
}
constexpr KMemoryRegionTypeValue& SetAttribute(KMemoryRegionAttr attr) {
m_value |= static_cast<u32>(attr);
return *this;
}
constexpr KMemoryRegionTypeValue DeriveInitial(
size_t i, size_t next = Common::BitSize<ValueType>()) const {
KMemoryRegionTypeValue new_type = *this;
new_type.m_value = (ValueType{1} << i);
new_type.m_next_bit = next;
return new_type;
}
constexpr KMemoryRegionTypeValue DeriveAttribute(KMemoryRegionAttr attr) const {
KMemoryRegionTypeValue new_type = *this;
new_type.m_value |= static_cast<u32>(attr);
return new_type;
}
constexpr KMemoryRegionTypeValue DeriveTransition(size_t ofs = 0, size_t adv = 1) const {
KMemoryRegionTypeValue new_type = *this;
new_type.m_value |= (ValueType{1} << (m_next_bit + ofs));
new_type.m_next_bit += adv;
return new_type;
}
constexpr KMemoryRegionTypeValue DeriveSparse(size_t ofs, size_t n, size_t i) const {
KMemoryRegionTypeValue new_type = *this;
new_type.m_value |= (ValueType{1} << (m_next_bit + ofs));
new_type.m_value |= (ValueType{1} << (m_next_bit + ofs + 1 + i));
new_type.m_next_bit += ofs + n + 1;
return new_type;
}
constexpr KMemoryRegionTypeValue Derive(size_t n, size_t i) const {
size_t low = 0, high = 1;
for (size_t j = 0; j < i; ++j) {
if ((++low) == high) {
++high;
low = 0;
}
}
KMemoryRegionTypeValue new_type = *this;
new_type.m_value |= (ValueType{1} << (m_next_bit + low));
new_type.m_value |= (ValueType{1} << (m_next_bit + high));
new_type.m_next_bit += BitsForDeriveDense(n);
return new_type;
}
constexpr KMemoryRegionTypeValue Advance(size_t n) const {
KMemoryRegionTypeValue new_type = *this;
new_type.m_next_bit += n;
return new_type;
}
constexpr bool IsAncestorOf(ValueType v) const {
return (m_value | v) == v;
}
};
} // namespace impl
constexpr auto KMemoryRegionType_None = impl::KMemoryRegionTypeValue();
constexpr auto KMemoryRegionType_Kernel = KMemoryRegionType_None.DeriveInitial(0, 2);
constexpr auto KMemoryRegionType_Dram = KMemoryRegionType_None.DeriveInitial(1, 2);
static_assert(KMemoryRegionType_Kernel.GetValue() == 0x1);
static_assert(KMemoryRegionType_Dram.GetValue() == 0x2);
constexpr auto KMemoryRegionType_DramKernelBase =
KMemoryRegionType_Dram.DeriveSparse(0, 3, 0)
.SetAttribute(KMemoryRegionAttr::NoUserMap)
.SetAttribute(KMemoryRegionAttr::CarveoutProtected);
constexpr auto KMemoryRegionType_DramReservedBase = KMemoryRegionType_Dram.DeriveSparse(0, 3, 1);
constexpr auto KMemoryRegionType_DramHeapBase =
KMemoryRegionType_Dram.DeriveSparse(0, 3, 2).SetAttribute(KMemoryRegionAttr::LinearMapped);
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramKernelBase.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0xE) | KMemoryRegionAttr::CarveoutProtected |
KMemoryRegionAttr::NoUserMap));
static_assert(KMemoryRegionType_DramReservedBase.GetValue() == (0x16));
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramHeapBase.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x26) | KMemoryRegionAttr::LinearMapped));
constexpr auto KMemoryRegionType_DramKernelCode =
KMemoryRegionType_DramKernelBase.DeriveSparse(0, 4, 0);
constexpr auto KMemoryRegionType_DramKernelSlab =
KMemoryRegionType_DramKernelBase.DeriveSparse(0, 4, 1);
constexpr auto KMemoryRegionType_DramKernelPtHeap =
KMemoryRegionType_DramKernelBase.DeriveSparse(0, 4, 2).SetAttribute(
KMemoryRegionAttr::LinearMapped);
constexpr auto KMemoryRegionType_DramKernelInitPt =
KMemoryRegionType_DramKernelBase.DeriveSparse(0, 4, 3).SetAttribute(
KMemoryRegionAttr::LinearMapped);
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramKernelCode.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0xCE) | KMemoryRegionAttr::CarveoutProtected |
KMemoryRegionAttr::NoUserMap));
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramKernelSlab.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x14E) | KMemoryRegionAttr::CarveoutProtected |
KMemoryRegionAttr::NoUserMap));
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramKernelPtHeap.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x24E) | KMemoryRegionAttr::CarveoutProtected |
KMemoryRegionAttr::NoUserMap | KMemoryRegionAttr::LinearMapped));
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramKernelInitPt.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x44E) | KMemoryRegionAttr::CarveoutProtected |
KMemoryRegionAttr::NoUserMap | KMemoryRegionAttr::LinearMapped));
constexpr auto KMemoryRegionType_DramReservedEarly =
KMemoryRegionType_DramReservedBase.DeriveAttribute(KMemoryRegionAttr::NoUserMap);
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramReservedEarly.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x16) | KMemoryRegionAttr::NoUserMap));
constexpr auto KMemoryRegionType_KernelTraceBuffer =
KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 0)
.SetAttribute(KMemoryRegionAttr::LinearMapped)
.SetAttribute(KMemoryRegionAttr::UserReadOnly);
constexpr auto KMemoryRegionType_OnMemoryBootImage =
KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 1);
constexpr auto KMemoryRegionType_DTB = KMemoryRegionType_DramReservedBase.DeriveSparse(0, 3, 2);
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_KernelTraceBuffer.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0xD6) | KMemoryRegionAttr::LinearMapped |
KMemoryRegionAttr::UserReadOnly));
static_assert(KMemoryRegionType_OnMemoryBootImage.GetValue() == 0x156);
static_assert(KMemoryRegionType_DTB.GetValue() == 0x256);
constexpr auto KMemoryRegionType_DramPoolPartition =
KMemoryRegionType_DramHeapBase.DeriveAttribute(KMemoryRegionAttr::NoUserMap);
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramPoolPartition.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x26) | KMemoryRegionAttr::LinearMapped |
KMemoryRegionAttr::NoUserMap));
constexpr auto KMemoryRegionType_DramPoolManagement =
KMemoryRegionType_DramPoolPartition.DeriveTransition(0, 2).DeriveTransition().SetAttribute(
KMemoryRegionAttr::CarveoutProtected);
constexpr auto KMemoryRegionType_DramUserPool =
KMemoryRegionType_DramPoolPartition.DeriveTransition(1, 2).DeriveTransition();
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramPoolManagement.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x166) | KMemoryRegionAttr::LinearMapped |
KMemoryRegionAttr::NoUserMap | KMemoryRegionAttr::CarveoutProtected));
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramUserPool.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x1A6) | KMemoryRegionAttr::LinearMapped |
KMemoryRegionAttr::NoUserMap));
constexpr auto KMemoryRegionType_DramApplicationPool = KMemoryRegionType_DramUserPool.Derive(4, 0);
constexpr auto KMemoryRegionType_DramAppletPool = KMemoryRegionType_DramUserPool.Derive(4, 1);
constexpr auto KMemoryRegionType_DramSystemNonSecurePool =
KMemoryRegionType_DramUserPool.Derive(4, 2);
constexpr auto KMemoryRegionType_DramSystemPool =
KMemoryRegionType_DramUserPool.Derive(4, 3).SetAttribute(KMemoryRegionAttr::CarveoutProtected);
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramApplicationPool.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x7A6) | KMemoryRegionAttr::LinearMapped |
KMemoryRegionAttr::NoUserMap));
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramAppletPool.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0xBA6) | KMemoryRegionAttr::LinearMapped |
KMemoryRegionAttr::NoUserMap));
static_assert(
static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramSystemNonSecurePool.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0xDA6) | KMemoryRegionAttr::LinearMapped |
KMemoryRegionAttr::NoUserMap));
static_assert(static_cast<KMemoryRegionAttr>(KMemoryRegionType_DramSystemPool.GetValue()) ==
(static_cast<KMemoryRegionAttr>(0x13A6) | KMemoryRegionAttr::LinearMapped |
KMemoryRegionAttr::NoUserMap | KMemoryRegionAttr::CarveoutProtected));
constexpr auto KMemoryRegionType_VirtualDramHeapBase = KMemoryRegionType_Dram.DeriveSparse(1, 3, 0);
constexpr auto KMemoryRegionType_VirtualDramKernelPtHeap =
KMemoryRegionType_Dram.DeriveSparse(1, 3, 1);
constexpr auto KMemoryRegionType_VirtualDramKernelTraceBuffer =
KMemoryRegionType_Dram.DeriveSparse(1, 3, 2);
static_assert(KMemoryRegionType_VirtualDramHeapBase.GetValue() == 0x1A);
static_assert(KMemoryRegionType_VirtualDramKernelPtHeap.GetValue() == 0x2A);
static_assert(KMemoryRegionType_VirtualDramKernelTraceBuffer.GetValue() == 0x4A);
constexpr auto KMemoryRegionType_VirtualDramKernelInitPt =
KMemoryRegionType_VirtualDramHeapBase.Derive(3, 0);
constexpr auto KMemoryRegionType_VirtualDramPoolManagement =
KMemoryRegionType_VirtualDramHeapBase.Derive(3, 1);
constexpr auto KMemoryRegionType_VirtualDramUserPool =
KMemoryRegionType_VirtualDramHeapBase.Derive(3, 2);
static_assert(KMemoryRegionType_VirtualDramKernelInitPt.GetValue() == 0x19A);
static_assert(KMemoryRegionType_VirtualDramPoolManagement.GetValue() == 0x29A);
static_assert(KMemoryRegionType_VirtualDramUserPool.GetValue() == 0x31A);
// NOTE: For unknown reason, the pools are derived out-of-order here. It's worth eventually trying
// to understand why Nintendo made this choice.
// UNUSED: .Derive(6, 0);
// UNUSED: .Derive(6, 1);
constexpr auto KMemoryRegionType_VirtualDramAppletPool =
KMemoryRegionType_VirtualDramUserPool.Derive(6, 2);
constexpr auto KMemoryRegionType_VirtualDramApplicationPool =
KMemoryRegionType_VirtualDramUserPool.Derive(6, 3);
constexpr auto KMemoryRegionType_VirtualDramSystemNonSecurePool =
KMemoryRegionType_VirtualDramUserPool.Derive(6, 4);
constexpr auto KMemoryRegionType_VirtualDramSystemPool =
KMemoryRegionType_VirtualDramUserPool.Derive(6, 5);
static_assert(KMemoryRegionType_VirtualDramAppletPool.GetValue() == 0x1B1A);
static_assert(KMemoryRegionType_VirtualDramApplicationPool.GetValue() == 0x271A);
static_assert(KMemoryRegionType_VirtualDramSystemNonSecurePool.GetValue() == 0x2B1A);
static_assert(KMemoryRegionType_VirtualDramSystemPool.GetValue() == 0x331A);
constexpr auto KMemoryRegionType_ArchDeviceBase =
KMemoryRegionType_Kernel.DeriveTransition(0, 1).SetSparseOnly();
constexpr auto KMemoryRegionType_BoardDeviceBase =
KMemoryRegionType_Kernel.DeriveTransition(0, 2).SetDenseOnly();
static_assert(KMemoryRegionType_ArchDeviceBase.GetValue() == 0x5);
static_assert(KMemoryRegionType_BoardDeviceBase.GetValue() == 0x5);
#if defined(ATMOSPHERE_ARCH_ARM64)
#include <mesosphere/arch/arm64/kern_k_memory_region_device_types.inc>
#elif defined(ATMOSPHERE_ARCH_ARM)
#include <mesosphere/arch/arm/kern_k_memory_region_device_types.inc>
#else
// Default to no architecture devices.
constexpr auto NumArchitectureDeviceRegions = 0;
#endif
static_assert(NumArchitectureDeviceRegions >= 0);
#if defined(ATMOSPHERE_BOARD_NINTENDO_NX)
#include <mesosphere/board/nintendo/nx/kern_k_memory_region_device_types.inc>
#else
// Default to no board devices.
constexpr auto NumBoardDeviceRegions = 0;
#endif
static_assert(NumBoardDeviceRegions >= 0);
constexpr auto KMemoryRegionType_KernelCode = KMemoryRegionType_Kernel.DeriveSparse(1, 4, 0);
constexpr auto KMemoryRegionType_KernelStack = KMemoryRegionType_Kernel.DeriveSparse(1, 4, 1);
constexpr auto KMemoryRegionType_KernelMisc = KMemoryRegionType_Kernel.DeriveSparse(1, 4, 2);
constexpr auto KMemoryRegionType_KernelSlab = KMemoryRegionType_Kernel.DeriveSparse(1, 4, 3);
static_assert(KMemoryRegionType_KernelCode.GetValue() == 0x19);
static_assert(KMemoryRegionType_KernelStack.GetValue() == 0x29);
static_assert(KMemoryRegionType_KernelMisc.GetValue() == 0x49);
static_assert(KMemoryRegionType_KernelSlab.GetValue() == 0x89);
constexpr auto KMemoryRegionType_KernelMiscDerivedBase =
KMemoryRegionType_KernelMisc.DeriveTransition();
static_assert(KMemoryRegionType_KernelMiscDerivedBase.GetValue() == 0x149);
// UNUSED: .Derive(7, 0);
constexpr auto KMemoryRegionType_KernelMiscMainStack =
KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 1);
constexpr auto KMemoryRegionType_KernelMiscMappedDevice =
KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 2);
constexpr auto KMemoryRegionType_KernelMiscExceptionStack =
KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 3);
constexpr auto KMemoryRegionType_KernelMiscUnknownDebug =
KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 4);
// UNUSED: .Derive(7, 5);
constexpr auto KMemoryRegionType_KernelMiscIdleStack =
KMemoryRegionType_KernelMiscDerivedBase.Derive(7, 6);
static_assert(KMemoryRegionType_KernelMiscMainStack.GetValue() == 0xB49);
static_assert(KMemoryRegionType_KernelMiscMappedDevice.GetValue() == 0xD49);
static_assert(KMemoryRegionType_KernelMiscExceptionStack.GetValue() == 0x1349);
static_assert(KMemoryRegionType_KernelMiscUnknownDebug.GetValue() == 0x1549);
static_assert(KMemoryRegionType_KernelMiscIdleStack.GetValue() == 0x2349);
constexpr auto KMemoryRegionType_KernelTemp = KMemoryRegionType_Kernel.Advance(2).Derive(2, 0);
static_assert(KMemoryRegionType_KernelTemp.GetValue() == 0x31);
constexpr KMemoryRegionType GetTypeForVirtualLinearMapping(u32 type_id) {
if (KMemoryRegionType_KernelTraceBuffer.IsAncestorOf(type_id)) {
return KMemoryRegionType_VirtualDramKernelTraceBuffer;
} else if (KMemoryRegionType_DramKernelPtHeap.IsAncestorOf(type_id)) {
return KMemoryRegionType_VirtualDramKernelPtHeap;
} else {
return KMemoryRegionType_Dram;
}
}
} // namespace Kernel
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