ladybird/Kernel/PhysicalAddress.h
Andreas Kling ef1e5db1d0 Everywhere: Remove klog(), dbg() and purge all LogStream usage :^)
Good-bye LogStream. Long live AK::Format!
2021-03-12 17:29:37 +01:00

71 lines
3.1 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Format.h>
#include <AK/Types.h>
class PhysicalAddress {
public:
PhysicalAddress() = default;
explicit PhysicalAddress(FlatPtr address)
: m_address(address)
{
}
[[nodiscard]] PhysicalAddress offset(FlatPtr o) const { return PhysicalAddress(m_address + o); }
[[nodiscard]] FlatPtr get() const { return m_address; }
void set(FlatPtr address) { m_address = address; }
void mask(FlatPtr m) { m_address &= m; }
[[nodiscard]] bool is_null() const { return m_address == 0; }
[[nodiscard]] u8* as_ptr() { return reinterpret_cast<u8*>(m_address); }
[[nodiscard]] const u8* as_ptr() const { return reinterpret_cast<const u8*>(m_address); }
[[nodiscard]] PhysicalAddress page_base() const { return PhysicalAddress(m_address & 0xfffff000); }
[[nodiscard]] FlatPtr offset_in_page() const { return PhysicalAddress(m_address & 0xfff).get(); }
bool operator==(const PhysicalAddress& other) const { return m_address == other.m_address; }
bool operator!=(const PhysicalAddress& other) const { return m_address != other.m_address; }
bool operator>(const PhysicalAddress& other) const { return m_address > other.m_address; }
bool operator>=(const PhysicalAddress& other) const { return m_address >= other.m_address; }
bool operator<(const PhysicalAddress& other) const { return m_address < other.m_address; }
bool operator<=(const PhysicalAddress& other) const { return m_address <= other.m_address; }
private:
FlatPtr m_address { 0 };
};
template<>
struct AK::Formatter<PhysicalAddress> : AK::Formatter<FormatString> {
void format(FormatBuilder& builder, PhysicalAddress value)
{
return AK::Formatter<FormatString>::format(builder, "P{}", value.as_ptr());
}
};