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authorJason Uhlenkott <jasonuhl@sgi.com>2006-01-11 22:45:51 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-11 19:04:59 -0800
commite080e9d66fd276ed34bc2834eedc134189b87fc9 (patch)
tree4bd582d2d9137df7bb7fa43c009e931941b25d01 /include/asm-x86_64
parent5b22a3855127bb8221bc96e8e41064b3c5b2bf08 (diff)
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[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 <jasonuhl@sgi.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-x86_64')
-rw-r--r--include/asm-x86_64/hw_irq.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/include/asm-x86_64/hw_irq.h b/include/asm-x86_64/hw_irq.h
index c14a8c7267a..b248930767e 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