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authorYinghai Lu <yinghai.lu@amd.com>2007-03-29 01:10:29 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-03-29 11:16:23 -0400
commitc97beb4710bc673867207d7d729f2ace4ca1f197 (patch)
treee758218fb09a1a45515707cdd22573af3cf5a743 /arch/x86_64
parent190a4408ecb577391ea5fbd1f90148a6992a5756 (diff)
[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>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/i8259.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c
index 21d95b747437..489426682772 100644
--- a/arch/x86_64/kernel/i8259.c
+++ b/arch/x86_64/kernel/i8259.c
@@ -45,7 +45,7 @@
45 45
46/* 46/*
47 * ISA PIC or low IO-APIC triggered (INTA-cycle or APIC) interrupts: 47 * ISA PIC or low IO-APIC triggered (INTA-cycle or APIC) interrupts:
48 * (these are usually mapped to vectors 0x20-0x2f) 48 * (these are usually mapped to vectors 0x30-0x3f)
49 */ 49 */
50 50
51/* 51/*
@@ -299,7 +299,7 @@ void init_8259A(int auto_eoi)
299 * outb_p - this has to work on a wide range of PC hardware. 299 * outb_p - this has to work on a wide range of PC hardware.
300 */ 300 */
301 outb_p(0x11, 0x20); /* ICW1: select 8259A-1 init */ 301 outb_p(0x11, 0x20); /* ICW1: select 8259A-1 init */
302 outb_p(IRQ0_VECTOR, 0x21); /* ICW2: 8259A-1 IR0-7 mapped to 0x20-0x27 */ 302 outb_p(IRQ0_VECTOR, 0x21); /* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
303 outb_p(0x04, 0x21); /* 8259A-1 (the master) has a slave on IR2 */ 303 outb_p(0x04, 0x21); /* 8259A-1 (the master) has a slave on IR2 */
304 if (auto_eoi) 304 if (auto_eoi)
305 outb_p(0x03, 0x21); /* master does Auto EOI */ 305 outb_p(0x03, 0x21); /* master does Auto EOI */
@@ -307,7 +307,7 @@ void init_8259A(int auto_eoi)
307 outb_p(0x01, 0x21); /* master expects normal EOI */ 307 outb_p(0x01, 0x21); /* master expects normal EOI */
308 308
309 outb_p(0x11, 0xA0); /* ICW1: select 8259A-2 init */ 309 outb_p(0x11, 0xA0); /* ICW1: select 8259A-2 init */
310 outb_p(IRQ8_VECTOR, 0xA1); /* ICW2: 8259A-2 IR0-7 mapped to 0x28-0x2f */ 310 outb_p(IRQ8_VECTOR, 0xA1); /* ICW2: 8259A-2 IR0-7 mapped to 0x38-0x3f */
311 outb_p(0x02, 0xA1); /* 8259A-2 is a slave on master's IR2 */ 311 outb_p(0x02, 0xA1); /* 8259A-2 is a slave on master's IR2 */
312 outb_p(0x01, 0xA1); /* (slave's support for AEOI in flat mode 312 outb_p(0x01, 0xA1); /* (slave's support for AEOI in flat mode
313 is to be investigated) */ 313 is to be investigated) */