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| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2008-10-17 11:18:10 +0900 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-10-17 10:09:25 -0700 |
| commit | 91834e685d2059b69c4e8e3d707f35d94438de94 (patch) | |
| tree | c97e5d8c2b8fe8de49b9cd32c592ecec4eb3c47a /arch/ia64/xen/time.c | |
| parent | a0df655ccd0669bd3efc85346dc816833dd1197f (diff) | |
| download | linux-91834e685d2059b69c4e8e3d707f35d94438de94.tar.gz | |
ia64/xen: preliminary support for save/restore.
preliminary support for save/restore.
Although Save/restore isn't fully working yet, this patch is necessary
to compile.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/xen/time.c')
| -rw-r--r-- | arch/ia64/xen/time.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/ia64/xen/time.c b/arch/ia64/xen/time.c index ec168ec754b2..d15a94c330fb 100644 --- a/arch/ia64/xen/time.c +++ b/arch/ia64/xen/time.c @@ -26,6 +26,8 @@ #include <linux/irq.h> #include <linux/clocksource.h> +#include <asm/timex.h> + #include <asm/xen/hypervisor.h> #include <xen/interface/vcpu.h> @@ -178,3 +180,34 @@ struct pv_time_ops xen_time_ops __initdata = { .do_steal_accounting = xen_do_steal_accounting, .clocksource_resume = xen_itc_jitter_data_reset, }; + +/* Called after suspend, to resume time. */ +static void xen_local_tick_resume(void) +{ + /* Just trigger a tick. */ + ia64_cpu_local_tick(); + touch_softlockup_watchdog(); +} + +void +xen_timer_resume(void) +{ + unsigned int cpu; + + xen_local_tick_resume(); + + for_each_online_cpu(cpu) + xen_init_missing_ticks_accounting(cpu); +} + +static void ia64_cpu_local_tick_fn(void *unused) +{ + xen_local_tick_resume(); + xen_init_missing_ticks_accounting(smp_processor_id()); +} + +void +xen_timer_resume_on_aps(void) +{ + smp_call_function(&ia64_cpu_local_tick_fn, NULL, 1); +} |