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Subject[PATCH 5/29] x86_64-i8259-shutdown
Date

From: Eric W. Biederman <ebiederm@xmission.com

The following patch simply adds a shutdown method to the x86_64 i8259 code.

Signed-off-by: Eric Biederman <ebiederm@xmission.com>
---
i8259.c | 12 ++++++++++++
1 files changed, 12 insertions(+)
diff -uNr linux-2.6.11-rc1-mm1-nokexec-x86-i8259-shutdown/arch/x86_64/kernel/i8259.c linux-2.6.11-rc1-mm1-nokexec-x86_64-i8259-shutdown/arch/x86_64/kernel/i8259.c
--- linux-2.6.11-rc1-mm1-nokexec-x86-i8259-shutdown/arch/x86_64/kernel/i8259.c Fri Jan 14 04:32:23 2005
+++ linux-2.6.11-rc1-mm1-nokexec-x86_64-i8259-shutdown/arch/x86_64/kernel/i8259.c Tue Jan 18 22:44:43 2005
@@ -416,10 +416,22 @@
return 0;
}

+static int i8259A_shutdown(struct sys_device *dev)
+{
+ /* Put the i8259A into a quiescent state that
+ * the kernel initialization code can get it
+ * out of.
+ */
+ outb(0xff, 0x21); /* mask all of 8259A-1 */
+ outb(0xff, 0xA1); /* mask all of 8259A-1 */
+ return 0;
+}
+
static struct sysdev_class i8259_sysdev_class = {
set_kset_name("i8259"),
.suspend = i8259A_suspend,
.resume = i8259A_resume,
+ .shutdown = i8259A_shutdown,
};

static struct sys_device device_i8259A = {
-
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