[PATCH] x86_64 irq: Fix comments after changing IRQ0_VECTOR from 0x20 to 0x30
Signed-off-by: Yinghai Lu <yinghai.lu@amd.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c
index 21d95b7..4894266 100644
--- a/arch/x86_64/kernel/i8259.c
+++ b/arch/x86_64/kernel/i8259.c
@@ -45,7 +45,7 @@
/*
* ISA PIC or low IO-APIC triggered (INTA-cycle or APIC) interrupts:
- * (these are usually mapped to vectors 0x20-0x2f)
+ * (these are usually mapped to vectors 0x30-0x3f)
*/
/*
@@ -299,7 +299,7 @@
* outb_p - this has to work on a wide range of PC hardware.
*/
outb_p(0x11, 0x20); /* ICW1: select 8259A-1 init */
- outb_p(IRQ0_VECTOR, 0x21); /* ICW2: 8259A-1 IR0-7 mapped to 0x20-0x27 */
+ outb_p(IRQ0_VECTOR, 0x21); /* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
outb_p(0x04, 0x21); /* 8259A-1 (the master) has a slave on IR2 */
if (auto_eoi)
outb_p(0x03, 0x21); /* master does Auto EOI */
@@ -307,7 +307,7 @@
outb_p(0x01, 0x21); /* master expects normal EOI */
outb_p(0x11, 0xA0); /* ICW1: select 8259A-2 init */
- outb_p(IRQ8_VECTOR, 0xA1); /* ICW2: 8259A-2 IR0-7 mapped to 0x28-0x2f */
+ outb_p(IRQ8_VECTOR, 0xA1); /* ICW2: 8259A-2 IR0-7 mapped to 0x38-0x3f */
outb_p(0x02, 0xA1); /* 8259A-2 is a slave on master's IR2 */
outb_p(0x01, 0xA1); /* (slave's support for AEOI in flat mode
is to be investigated) */
diff --git a/include/asm-x86_64/hw_irq.h b/include/asm-x86_64/hw_irq.h
index 2e4b7a5..6153ae5 100644
--- a/include/asm-x86_64/hw_irq.h
+++ b/include/asm-x86_64/hw_irq.h
@@ -38,7 +38,7 @@
#define IRQ_MOVE_CLEANUP_VECTOR FIRST_EXTERNAL_VECTOR
/*
- * Vectors 0x20-0x2f are used for ISA interrupts.
+ * Vectors 0x30-0x3f are used for ISA interrupts.
*/
#define IRQ0_VECTOR FIRST_EXTERNAL_VECTOR + 0x10
#define IRQ1_VECTOR IRQ0_VECTOR + 1