Messages in this thread Patch in this message |  | | | From | "Eric W. Biederman" <> | | Subject | [PATCH 5/29] x86_64-i8259-shutdown | | Date | Wed, 19 Jan 2005 0:31:37 -0700 |
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 = { - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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