From e080e9d66fd276ed34bc2834eedc134189b87fc9 Mon Sep 17 00:00:00 2001 From: Jason Uhlenkott Date: Wed, 11 Jan 2006 22:45:51 +0100 Subject: [PATCH] [PATCH] x86_64: Don't claim too many vectors for TLB flushing It looks like the new scalable TLB flush code for x86_64 is claiming one more IRQ vector than it actually uses. Signed-off-by: Jason Uhlenkott Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/asm-x86_64/hw_irq.h | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/include/asm-x86_64/hw_irq.h b/include/asm-x86_64/hw_irq.h index c14a8c7..b248930 100644 --- a/include/asm-x86_64/hw_irq.h +++ b/include/asm-x86_64/hw_irq.h @@ -46,8 +46,6 @@ struct hw_interrupt_type; * some of the following vectors are 'rare', they are merged * into a single vector (CALL_FUNCTION_VECTOR) to save vector space. * TLB, reschedule and local APIC vectors are performance-critical. - * - * Vectors 0xf0-0xf9 are free (reserved for future Linux use). */ #define SPURIOUS_APIC_VECTOR 0xff #define ERROR_APIC_VECTOR 0xfe @@ -56,8 +54,9 @@ struct hw_interrupt_type; #define KDB_VECTOR 0xfb /* reserved for KDB */ #define THERMAL_APIC_VECTOR 0xfa #define THRESHOLD_APIC_VECTOR 0xf9 -#define INVALIDATE_TLB_VECTOR_END 0xf8 -#define INVALIDATE_TLB_VECTOR_START 0xf0 /* f0-f8 used for TLB flush */ +/* f8 free */ +#define INVALIDATE_TLB_VECTOR_END 0xf7 +#define INVALIDATE_TLB_VECTOR_START 0xf0 /* f0-f7 used for TLB flush */ #define NUM_INVALIDATE_TLB_VECTORS 8 -- 1.8.2.3