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| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2008-04-02 19:53:57 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-24 23:57:32 +0200 |
| commit | 642e0c882cd5369429c833d97e4804c8be473e8a (patch) | |
| tree | c9032832801bd68379b30983ce61fd80f823adb0 /drivers/xen | |
| parent | Xen: make events.c portable for ia64/xen support (diff) | |
| download | linux-642e0c882cd5369429c833d97e4804c8be473e8a.tar.xz linux-642e0c882cd5369429c833d97e4804c8be473e8a.zip | |
xen: add resend_irq_on_evtchn() definition into events.c
Define resend_irq_on_evtchn() which ia64/xen uses.
Although it isn't used by current x86/xen code, it's arch generic
so that put it into common code.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/events.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 2396b4492f70..4f0f22b020ea 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -586,6 +586,22 @@ static void set_affinity_irq(unsigned irq, cpumask_t dest) rebind_irq_to_cpu(irq, tcpu); } +int resend_irq_on_evtchn(unsigned int irq) +{ + int masked, evtchn = evtchn_from_irq(irq); + struct shared_info *s = HYPERVISOR_shared_info; + + if (!VALID_EVTCHN(evtchn)) + return 1; + + masked = sync_test_and_set_bit(evtchn, s->evtchn_mask); + sync_set_bit(evtchn, s->evtchn_pending); + if (!masked) + unmask_evtchn(evtchn); + + return 1; +} + static void enable_dynirq(unsigned int irq) { int evtchn = evtchn_from_irq(irq); |