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x86: Cleanup vector usage 

Cleanup the vector usage and make them continuous if possible.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
LKML-Reference: <1295232722.1949.707.camel@sli10-conroe>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Shaohua Li 2011-01-17 10:52:02 +08:00 committed by Ingo Molnar
parent 795abaf1e4
commit 60f6e65d78
1 changed files with 27 additions and 25 deletions
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52
arch/x86/include/asm/irq_vectors.h
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@ -1,6 +1,7 @@
#ifndef _ASM_X86_IRQ_VECTORS_H
#define _ASM_X86_IRQ_VECTORS_H
#include <linux/threads.h>
/*
* Linux IRQ vector layout.
*
@ -16,8 +17,8 @@
* Vectors 0 ... 31 : system traps and exceptions - hardcoded events
* Vectors 32 ... 127 : device interrupts
* Vector 128 : legacy int80 syscall interface
* Vectors 129 ... 237 : device interrupts
* Vectors 238 ... 255 : special interrupts
* Vectors 129 ... 229 : device interrupts
* Vectors 230 ... 255 : special interrupts
*
* 64-bit x86 has per CPU IDT tables, 32-bit has one shared IDT table.
*
@ -96,10 +97,25 @@
#define THRESHOLD_APIC_VECTOR 0xf9
#define REBOOT_VECTOR 0xf8
/* f0-f7 used for spreading out TLB flushes: */
#define INVALIDATE_TLB_VECTOR_END 0xf7
#define INVALIDATE_TLB_VECTOR_START 0xf0
#define NUM_INVALIDATE_TLB_VECTORS 8
/*
* Generic system vector for platform specific use
*/
#define X86_PLATFORM_IPI_VECTOR 0xf7
/*
* IRQ work vector:
*/
#define IRQ_WORK_VECTOR 0xf6
#define UV_BAU_MESSAGE 0xf5
/*
* Self IPI vector for machine checks
*/
#define MCE_SELF_VECTOR 0xf4
/* Xen vector callback to receive events in a HVM domain */
#define XEN_HVM_EVTCHN_CALLBACK 0xf3
/*
* Local APIC timer IRQ vector is on a different priority level,
@ -108,25 +124,11 @@
*/
#define LOCAL_TIMER_VECTOR 0xef
/*
* Generic system vector for platform specific use
*/
#define X86_PLATFORM_IPI_VECTOR 0xed
/*
* IRQ work vector:
*/
#define IRQ_WORK_VECTOR 0xec
#define UV_BAU_MESSAGE 0xea
/*
* Self IPI vector for machine checks
*/
#define MCE_SELF_VECTOR 0xeb
/* Xen vector callback to receive events in a HVM domain */
#define XEN_HVM_EVTCHN_CALLBACK 0xe9
/* f0-f7 used for spreading out TLB flushes: */
#define NUM_INVALIDATE_TLB_VECTORS 8
#define INVALIDATE_TLB_VECTOR_END 0xee
#define INVALIDATE_TLB_VECTOR_START \
(INVALIDATE_TLB_VECTOR_END - NUM_INVALIDATE_TLB_VECTORS + 1)
#define NR_VECTORS 256