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authorJack Steiner <steiner@sgi.com>2007-05-08 21:50:43 (GMT)
committerTony Luck <tony.luck@intel.com>2007-05-08 21:50:43 (GMT)
commit3be44b9cc33d26930cb3bb014f35f582c6522481 (patch)
tree09225c5f0fb4c6caa81bbdff216ec83a093e4d12 /include/asm-ia64/tlbflush.h
parent8737d59579c5e61ea3d5da4bd63303159fd1cf7e (diff)
downloadlinux-3be44b9cc33d26930cb3bb014f35f582c6522481.tar.xz
[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/tlbflush.h')
-rw-r--r--include/asm-ia64/tlbflush.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-ia64/tlbflush.h b/include/asm-ia64/tlbflush.h
index cf9acb9..e37f9fb 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 */