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authorShaohua Li <shaohua.li@intel.com>2011-01-17 10:52:02 +0800
committerIngo Molnar <mingo@elte.hu>2011-02-14 13:03:07 +0100
commit60f6e65d7887c257392313755f95540ef5e7ea89 (patch)
tree05d6a971f8e2ee639172a434deaa3bea502185cc
parent795abaf1e4e188c4171e3cd3dbb11a9fcacaf505 (diff)
downloadlinux-60f6e65d7887c257392313755f95540ef5e7ea89.tar.gz
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>
-rw-r--r--arch/x86/include/asm/irq_vectors.h40
1 files changed, 21 insertions, 19 deletions
diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index 6af0894dafb..42f0d4a30f1 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -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.
*
@@ -96,37 +97,38 @@
#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
-
-/*
- * Local APIC timer IRQ vector is on a different priority level,
- * to work around the 'lost local interrupt if more than 2 IRQ
- * sources per level' errata.
- */
-#define LOCAL_TIMER_VECTOR 0xef
-
/*
* Generic system vector for platform specific use
*/
-#define X86_PLATFORM_IPI_VECTOR 0xed
+#define X86_PLATFORM_IPI_VECTOR 0xf7
/*
* IRQ work vector:
*/
-#define IRQ_WORK_VECTOR 0xec
+#define IRQ_WORK_VECTOR 0xf6
-#define UV_BAU_MESSAGE 0xea
+#define UV_BAU_MESSAGE 0xf5
/*
* Self IPI vector for machine checks
*/
-#define MCE_SELF_VECTOR 0xeb
+#define MCE_SELF_VECTOR 0xf4
/* Xen vector callback to receive events in a HVM domain */
-#define XEN_HVM_EVTCHN_CALLBACK 0xe9
+#define XEN_HVM_EVTCHN_CALLBACK 0xf3
+
+/*
+ * Local APIC timer IRQ vector is on a different priority level,
+ * to work around the 'lost local interrupt if more than 2 IRQ
+ * sources per level' errata.
+ */
+#define LOCAL_TIMER_VECTOR 0xef
+
+/* 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