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| author | Jack Steiner <steiner@sgi.com> | 2007-05-08 14:50:43 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2007-05-08 14:50:43 -0700 |
| commit | 3be44b9cc33d26930cb3bb014f35f582c6522481 (patch) | |
| tree | 09225c5f0fb4c6caa81bbdff216ec83a093e4d12 /include/asm-ia64 | |
| parent | 8737d59579c5e61ea3d5da4bd63303159fd1cf7e (diff) | |
| download | linux-stable-3be44b9cc33d26930cb3bb014f35f582c6522481.tar.gz linux-stable-3be44b9cc33d26930cb3bb014f35f582c6522481.tar.bz2 linux-stable-3be44b9cc33d26930cb3bb014f35f582c6522481.zip | |
[IA64] Optional method to purge the TLB on SN systems
This patch adds an optional method for purging the TLB on SN IA64 systems.
The change should not affect any non-SN system.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64')
| -rw-r--r-- | include/asm-ia64/hw_irq.h | 1 | ||||
| -rw-r--r-- | include/asm-ia64/tlbflush.h | 11 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h index 27f9df6b9145..c054d7a9aaa7 100644 --- a/include/asm-ia64/hw_irq.h +++ b/include/asm-ia64/hw_irq.h @@ -66,6 +66,7 @@ extern int ia64_last_device_vector; #define IA64_PERFMON_VECTOR 0xee /* performanc monitor interrupt vector */ #define IA64_TIMER_VECTOR 0xef /* use highest-prio group 15 interrupt for timer */ #define IA64_MCA_WAKEUP_VECTOR 0xf0 /* MCA wakeup (must be >MCA_RENDEZ_VECTOR) */ +#define IA64_IPI_LOCAL_TLB_FLUSH 0xfc /* SMP flush local TLB */ #define IA64_IPI_RESCHEDULE 0xfd /* SMP reschedule */ #define IA64_IPI_VECTOR 0xfe /* inter-processor interrupt vector */ diff --git a/include/asm-ia64/tlbflush.h b/include/asm-ia64/tlbflush.h index cf9acb9bb1fb..e37f9fbf33af 100644 --- a/include/asm-ia64/tlbflush.h +++ b/include/asm-ia64/tlbflush.h @@ -27,9 +27,11 @@ extern void local_flush_tlb_all (void); #ifdef CONFIG_SMP extern void smp_flush_tlb_all (void); extern void smp_flush_tlb_mm (struct mm_struct *mm); + extern void smp_flush_tlb_cpumask (cpumask_t xcpumask); # define flush_tlb_all() smp_flush_tlb_all() #else # define flush_tlb_all() local_flush_tlb_all() +# define smp_flush_tlb_cpumask(m) local_flush_tlb_all() #endif static inline void @@ -94,6 +96,15 @@ flush_tlb_pgtables (struct mm_struct *mm, unsigned long start, unsigned long end */ } +/* + * Flush the local TLB. Invoked from another cpu using an IPI. + */ +#ifdef CONFIG_SMP +void smp_local_flush_tlb(void); +#else +#define smp_local_flush_tlb() +#endif + #define flush_tlb_kernel_range(start, end) flush_tlb_all() /* XXX fix me */ #endif /* _ASM_IA64_TLBFLUSH_H */ |