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x86: Add ioapic.h header

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Add definitions for the I/O Advanced Peripheral Interrupt Controller.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2014-11-14 18:18:27 -07:00
parent c6577f7219
commit a2f5d091cc
1 changed files with 38 additions and 0 deletions
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38
arch/x86/include/asm/ioapic.h Normal file
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/*
* From coreboot file of the same name
*
* Copyright (C) 2010 coresystems GmbH
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef __ASM_IOAPIC_H
#define __ASM_IOAPIC_H
#define IO_APIC_ADDR 0xfec00000
#define IO_APIC_INDEX IO_APIC_ADDR
#define IO_APIC_DATA (IO_APIC_ADDR + 0x10)
#define IO_APIC_INTERRUPTS 24
#define ALL (0xff << 24)
#define NONE 0
#define DISABLED (1 << 16)
#define ENABLED (0 << 16)
#define TRIGGER_EDGE (0 << 15)
#define TRIGGER_LEVEL (1 << 15)
#define POLARITY_HIGH (0 << 13)
#define POLARITY_LOW (1 << 13)
#define PHYSICAL_DEST (0 << 11)
#define LOGICAL_DEST (1 << 11)
#define ExtINT (7 << 8)
#define NMI (4 << 8)
#define SMI (2 << 8)
#define INT (1 << 8)
u32 io_apic_read(u32 ioapic_base, u32 reg);
void io_apic_write(u32 ioapic_base, u32 reg, u32 value);
void set_ioapic_id(u32 ioapic_base, u8 ioapic_id);
void setup_ioapic(u32 ioapic_base, u8 ioapic_id);
void clear_ioapic(u32 ioapic_base);
#endif