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Commit acaabe79 authored by Dimitri Sivanich's avatar Dimitri Sivanich Committed by Ingo Molnar
Browse files

x86: UV, SGI RTC: add generic system vector 



This patch allocates a system interrupt vector for various platform
specific uses.

Signed-off-by: default avatarDimitri Sivanich <sivanich@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: john stultz <johnstul@us.ibm.com>
LKML-Reference: <20090304185605.GA24419@sgi.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent f254f390

arch/x86/include/asm/entry_arch.h

+2 −0
Original line number Diff line number Diff line
@@ -33,6 +33,8 @@ BUILD_INTERRUPT3(invalidate_interrupt7,INVALIDATE_TLB_VECTOR_START+7, 
		 smp_invalidate_interrupt)

#endif



BUILD_INTERRUPT(generic_interrupt, GENERIC_INTERRUPT_VECTOR)



/*

 * every pentium local APIC has two 'local interrupts', with a

 * soft-definable vector attached to both interrupts, one of

arch/x86/include/asm/hardirq.h

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ typedef struct { 
	unsigned int apic_timer_irqs;	/* arch dependent */

	unsigned int irq_spurious_count;

#endif

	unsigned int generic_irqs;	/* arch dependent */

#ifdef CONFIG_SMP

	unsigned int irq_resched_count;

	unsigned int irq_call_count;

arch/x86/include/asm/hw_irq.h

+1 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 


/* Interrupt handlers registered during init_IRQ */

extern void apic_timer_interrupt(void);

extern void generic_interrupt(void);

extern void error_interrupt(void);

extern void spurious_interrupt(void);

extern void thermal_interrupt(void);

arch/x86/include/asm/irq.h

+1 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ static inline int irq_canonicalize(int irq) 
extern void fixup_irqs(void);

#endif



extern void (*generic_interrupt_extension)(void);

extern void init_IRQ(void);

extern void native_init_IRQ(void);

extern bool handle_irq(unsigned irq, struct pt_regs *regs);

arch/x86/include/asm/irq_vectors.h

+5 −0
Original line number Diff line number Diff line
@@ -111,6 +111,11 @@ 
 */

#define LOCAL_PERF_VECTOR		0xee



/*

 * Generic system vector for platform specific use

 */

#define GENERIC_INTERRUPT_VECTOR	0xed



/*

 * First APIC vector available to drivers: (vectors 0x30-0xee) we

 * start at 0x31(0x41) to spread out vectors evenly between priority