mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 02:42:44 +00:00
a47271ebdc
These are the same for both x86 and aarch64 for now. Also update some include paths to use the generic CPU.h header.
58 lines
1.1 KiB
C++
58 lines
1.1 KiB
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Atomic.h>
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#include <AK/Concepts.h>
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#include <AK/Vector.h>
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#include <Kernel/Arch/x86/DescriptorTable.h>
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#include <AK/Platform.h>
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VALIDATE_IS_X86()
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/* Map IRQ0-15 @ ISR 0x50-0x5F */
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#define IRQ_VECTOR_BASE 0x50
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#define GENERIC_INTERRUPT_HANDLERS_COUNT (256 - IRQ_VECTOR_BASE)
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namespace Kernel {
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struct RegisterState;
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class GenericInterruptHandler;
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static constexpr u32 safe_eflags_mask = 0xdff;
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static constexpr u32 iopl_mask = 3u << 12;
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inline u32 get_iopl_from_eflags(u32 eflags)
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{
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return (eflags & iopl_mask) >> 12;
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}
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DescriptorTablePointer const& get_gdtr();
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DescriptorTablePointer const& get_idtr();
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constexpr FlatPtr page_base_of(FlatPtr address)
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{
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return address & PAGE_MASK;
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}
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inline FlatPtr page_base_of(void const* address)
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{
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return page_base_of((FlatPtr)address);
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}
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constexpr FlatPtr offset_in_page(FlatPtr address)
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{
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return address & (~PAGE_MASK);
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}
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inline FlatPtr offset_in_page(void const* address)
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{
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return offset_in_page((FlatPtr)address);
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}
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}
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