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Xen: make events.c portable for ia64/xen support

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Remove x86 dependency in drivers/xen/events.c for ia64/xen support
introducing include/asm/xen/events.h.
Introduce xen_irqs_disabled() to hide regs->flags
Introduce xen_do_IRQ() to hide regs->orig_ax.
make enum ipi_vector definition arch specific. ia64/xen needs four vectors.
Add one rmb() because on ia64 xchg() isn't barrier.

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>
This commit is contained in:
Isaku Yamahata
2008-04-02 10:53:56 -07:00
committed by Ingo Molnar
parent e04d0d0767
commit e849c3e9e0
3 changed files with 30 additions and 13 deletions
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8
include/xen/events.h
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@@ -5,13 +5,7 @@
#include <xen/interface/event_channel.h>
#include <asm/xen/hypercall.h>
enum ipi_vector {
XEN_RESCHEDULE_VECTOR,
XEN_CALL_FUNCTION_VECTOR,
XEN_NR_IPIS,
};
#include <asm/xen/events.h>
int bind_evtchn_to_irq(unsigned int evtchn);
int bind_evtchn_to_irqhandler(unsigned int evtchn,