diff options
| author | Aaron J Young <ayoung@sgi.com> | 2005-04-25 22:11:14 +0200 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-04-25 22:11:14 +0200 |
| commit | c1298c5c7e5763a3b2fd4a9535d474ff6e54cd53 (patch) | |
| tree | 9235aeedfff44ddb7330ce119ad285bf92e65253 /arch/ia64 | |
| parent | [IA64-SGI] Bus driver for the CX port of SGI's TIO chip. (diff) | |
| download | linux-c1298c5c7e5763a3b2fd4a9535d474ff6e54cd53.tar.xz linux-c1298c5c7e5763a3b2fd4a9535d474ff6e54cd53.zip | |
[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.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c index f0306b516afb..d35f2a6f9c94 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; } /** |