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authorAaron J Young <ayoung@sgi.com>2005-04-25 13:11:14 -0700
committerTony Luck <tony.luck@intel.com>2005-04-25 13:11:14 -0700
commitc1298c5c7e5763a3b2fd4a9535d474ff6e54cd53 (patch)
tree9235aeedfff44ddb7330ce119ad285bf92e65253 /arch/ia64
parente1e19747ecce9117610b8f3b57a3e95734230319 (diff)
[IA64-SGI] Altix: enable poweroff
This patch adds the necessary "hook" to allow SGI/SN machines to perform a system power off upon a 'init 0', 'halt -p', 'poweroff' or 'shutdown -h'. The "hook" is to set the pm_power_off callback to ia64_sn_power_down(). pm_power_off is checked in machine_power_off()/do_poweroff() and, if set, is executed. ia64_sn_power_down() is a function already present (but not used currently) in the sn kernel. ia64_sn_power_down() makes a SAL call to execute the power off. Signed-off-by: Aaron J Young <ayoung@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/sn/kernel/setup.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index f0306b516af..d35f2a6f9c9 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -29,6 +29,7 @@
#include <linux/sched.h>
#include <linux/root_dev.h>
#include <linux/nodemask.h>
+#include <linux/pm.h>
#include <asm/io.h>
#include <asm/sal.h>
@@ -353,6 +354,14 @@ void __init sn_setup(char **cmdline_p)
screen_info = sn_screen_info;
sn_timer_init();
+
+ /*
+ * set pm_power_off to a SAL call to allow
+ * sn machines to power off. The SAL call can be replaced
+ * by an ACPI interface call when ACPI is fully implemented
+ * for sn.
+ */
+ pm_power_off = ia64_sn_power_down;
}
/**