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Kernel: Move {Virtual,Physical}Address classes to the Memory directory

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Liav A 2023-02-24 19:54:30 +02:00 • committed by Jelle Raaijmakers
parent 64af4953c2
commit aaa1de7878
54 changed files with 61 additions and 59 deletions
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61
Kernel/Memory/VirtualAddress.h Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Format.h>
#include <AK/Types.h>
class VirtualAddress {
public:
VirtualAddress() = default;
constexpr explicit VirtualAddress(FlatPtr address)
: m_address(address)
{
}
explicit VirtualAddress(void const* address)
: m_address((FlatPtr)address)
{
}
[[nodiscard]] constexpr bool is_null() const { return m_address == 0; }
[[nodiscard]] constexpr bool is_page_aligned() const { return (m_address & 0xfff) == 0; }
[[nodiscard]] constexpr VirtualAddress offset(FlatPtr o) const { return VirtualAddress(m_address + o); }
[[nodiscard]] constexpr FlatPtr get() const { return m_address; }
void set(FlatPtr address) { m_address = address; }
void mask(FlatPtr m) { m_address &= m; }
bool operator<=(VirtualAddress const& other) const { return m_address <= other.m_address; }
bool operator>=(VirtualAddress const& other) const { return m_address >= other.m_address; }
bool operator>(VirtualAddress const& other) const { return m_address > other.m_address; }
bool operator<(VirtualAddress const& other) const { return m_address < other.m_address; }
bool operator==(VirtualAddress const& other) const { return m_address == other.m_address; }
bool operator!=(VirtualAddress const& other) const { return m_address != other.m_address; }
// NOLINTNEXTLINE(readability-make-member-function-const) const VirtualAddress shouldn't be allowed to modify the underlying memory
[[nodiscard]] u8* as_ptr() { return reinterpret_cast<u8*>(m_address); }
[[nodiscard]] u8 const* as_ptr() const { return reinterpret_cast<u8 const*>(m_address); }
[[nodiscard]] VirtualAddress page_base() const { return VirtualAddress(m_address & ~(FlatPtr)0xfffu); }
private:
FlatPtr m_address { 0 };
};
inline VirtualAddress operator-(VirtualAddress const& a, VirtualAddress const& b)
{
return VirtualAddress(a.get() - b.get());
}
template<>
struct AK::Formatter<VirtualAddress> : AK::Formatter<FormatString> {
ErrorOr<void> format(FormatBuilder& builder, VirtualAddress const& value)
{
return AK::Formatter<FormatString>::format(builder, "V{}"sv, value.as_ptr());
}
};