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| author | Isaku Yamahata <yamahata@valinux.co.jp> | 2008-04-02 10:53:56 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-24 23:57:32 +0200 |
| commit | e849c3e9e0b786619c451d89ef0c47ac9a28fbc1 (patch) | |
| tree | bc3500d40095c2f868e2efca4918b73a6b0a1090 /include/asm-x86 | |
| parent | e04d0d0767a9c272d3c7300fb7a5221c5e3a71eb (diff) | |
| download | linux-e849c3e9e0b786619c451d89ef0c47ac9a28fbc1.tar.gz linux-e849c3e9e0b786619c451d89ef0c47ac9a28fbc1.tar.bz2 linux-e849c3e9e0b786619c451d89ef0c47ac9a28fbc1.zip | |
Xen: make events.c portable for ia64/xen support
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>
Diffstat (limited to 'include/asm-x86')
| -rw-r--r-- | include/asm-x86/xen/events.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/asm-x86/xen/events.h b/include/asm-x86/xen/events.h new file mode 100644 index 000000000000..596312a7bfc9 --- /dev/null +++ b/include/asm-x86/xen/events.h @@ -0,0 +1,22 @@ +#ifndef __XEN_EVENTS_H +#define __XEN_EVENTS_H + +enum ipi_vector { + XEN_RESCHEDULE_VECTOR, + XEN_CALL_FUNCTION_VECTOR, + + XEN_NR_IPIS, +}; + +static inline int xen_irqs_disabled(struct pt_regs *regs) +{ + return raw_irqs_disabled_flags(regs->flags); +} + +static inline void xen_do_IRQ(int irq, struct pt_regs *regs) +{ + regs->orig_ax = ~irq; + do_IRQ(regs); +} + +#endif /* __XEN_EVENTS_H */ |