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yaml --- r: 185148 b: refs/heads/master c: ea94396 h: refs/heads/master v: v3
git-mirror · Jan 5, 2010 · 03e44e1 · 03e44e1
1 parent a4634f2
commit 03e44e1
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Showing 3 changed files with 8 additions and 6 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 99d113b17e8ca5a8b68a9d3f7691e2f552dd6a06
+refs/heads/master: ea94396629a3e0cb9a3a9c75335b1de255b30426
diff --git a/trunk/arch/x86/include/asm/irq_vectors.h b/trunk/arch/x86/include/asm/irq_vectors.h
@@ -133,11 +133,12 @@
 #define MCE_SELF_VECTOR			0xeb
 
 /*
- * First APIC vector available to drivers: (vectors 0x30-0xee) we
- * start at 0x31 to spread out vectors evenly between priority
- * levels. (0x80 is the syscall vector)
+ * First APIC vector available to drivers: (vectors 0x30-0xee).  We
+ * start allocating at 0x31 to spread out vectors evenly between
+ * priority levels. (0x80 is the syscall vector)
  */
-#define FIRST_DEVICE_VECTOR		(IRQ15_VECTOR + 2)
+#define FIRST_DEVICE_VECTOR		(IRQ15_VECTOR + 1)
+#define VECTOR_OFFSET_START		1
 
 #define NR_VECTORS			 256
 

diff --git a/trunk/arch/x86/kernel/apic/io_apic.c b/trunk/arch/x86/kernel/apic/io_apic.c
@@ -1162,7 +1162,8 @@ __assign_irq_vector(int irq, struct irq_cfg *cfg, const struct cpumask *mask)
 	 * Also, we've got to be careful not to trash gate
 	 * 0x80, because int 0x80 is hm, kind of importantish. ;)
 	 */
-	static int current_vector = FIRST_DEVICE_VECTOR, current_offset = 0;
+	static int current_vector = FIRST_DEVICE_VECTOR + VECTOR_OFFSET_START;
+	static int current_offset = VECTOR_OFFSET_START % 8;
 	unsigned int old_vector;
 	int cpu, err;
 	cpumask_var_t tmp_mask;