diff options
| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-19 20:35:03 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-19 20:35:03 +0200 |
| commit | dbeb2be21d678c49a8d8bbf774903df15dd55474 (patch) | |
| tree | cea1b478ec3af36134aa06633be1a45787f35f75 /include/asm-x86/irq_32.h | |
| parent | x86: use raw locks during oopses (diff) | |
| download | linux-dbeb2be21d678c49a8d8bbf774903df15dd55474.tar.xz linux-dbeb2be21d678c49a8d8bbf774903df15dd55474.zip | |
i386: introduce "used_vectors" bitmap which can be used to reserve vectors.
This simplifies the io_apic.c __assign_irq_vector() logic and removes
the explicit SYSCALL_VECTOR check, and also allows for vectors to be
reserved by other mechanisms (ie. lguest).
[ tglx: arch/x86 adaptation ]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/irq_32.h')
| -rw-r--r-- | include/asm-x86/irq_32.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/irq_32.h b/include/asm-x86/irq_32.h index 36f310632c49..aca9c96e8e6b 100644 --- a/include/asm-x86/irq_32.h +++ b/include/asm-x86/irq_32.h @@ -45,4 +45,7 @@ unsigned int do_IRQ(struct pt_regs *regs); void init_IRQ(void); void __init native_init_IRQ(void); +/* Interrupt vector management */ +extern DECLARE_BITMAP(used_vectors, NR_VECTORS); + #endif /* _ASM_IRQ_H */ |