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Message-Id: <1378257924-29446-1-git-send-email-ycnian@gmail.com>
Date: Wed, 4 Sep 2013 09:25:24 +0800
From: Yanchuan Nian <ycnian@...il.com>
To: mingo@...hat.com
Cc: linux-kernel@...r.kernel.org, x86@...nel.org, yinghai@...nel.org,
pavel@...e.cz, tglx@...utronix.de, Yanchuan Nian <ycnian@...il.com>
Subject: [PATCH] x86/irq: correct comment about i8259 initialization
From: Yanchuan Nian <ycnian@...il.com>
0x30-0x3f have been used for ISA interrupts on i386 since 5 years ago,
but some comments about i8259 initialization were missed to update
at the same time.
Signed-off-by: Yanchuan Nian <ycnian@...il.com>
---
arch/x86/kernel/i8259.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 9a5c460..2e977b5 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -312,8 +312,7 @@ static void init_8259A(int auto_eoi)
*/
outb_pic(0x11, PIC_MASTER_CMD); /* ICW1: select 8259A-1 init */
- /* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 on x86-64,
- to 0x20-0x27 on i386 */
+ /* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
outb_pic(IRQ0_VECTOR, PIC_MASTER_IMR);
/* 8259A-1 (the master) has a slave on IR2 */
--
1.8.1.4
--
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