diff options
| author | Dave Kleikamp <shaggy@austin.ibm.com> | 2006-01-24 14:34:47 -0600 |
|---|---|---|
| committer | Dave Kleikamp <shaggy@austin.ibm.com> | 2006-01-24 14:34:47 -0600 |
| commit | 0a0fc0ddbe732779366ab6b1b879f62195e65967 (patch) | |
| tree | 7b42490a676cf39ae0691b6859ecf7fd410f229b /include/asm-parisc/tlbflush.h | |
| parent | 4d5dbd0945d9e0833dd7964a3d6ee33157f7cc7a (diff) | |
| parent | 3ee68c4af3fd7228c1be63254b9f884614f9ebb2 (diff) | |
Merge with /home/shaggy/git/linus-clean/
Diffstat (limited to 'include/asm-parisc/tlbflush.h')
| -rw-r--r-- | include/asm-parisc/tlbflush.h | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h index e97aa8d1eff5..825994a90e2d 100644 --- a/include/asm-parisc/tlbflush.h +++ b/include/asm-parisc/tlbflush.h @@ -12,22 +12,17 @@ * N class systems, only one PxTLB inter processor broadcast can be * active at any one time on the Merced bus. This tlb purge * synchronisation is fairly lightweight and harmless so we activate - * it on all SMP systems not just the N class. */ -#ifdef CONFIG_SMP + * it on all SMP systems not just the N class. We also need to have + * preemption disabled on uniprocessor machines, and spin_lock does that + * nicely. + */ extern spinlock_t pa_tlb_lock; #define purge_tlb_start(x) spin_lock(&pa_tlb_lock) #define purge_tlb_end(x) spin_unlock(&pa_tlb_lock) -#else - -#define purge_tlb_start(x) do { } while(0) -#define purge_tlb_end(x) do { } while (0) - -#endif - - extern void flush_tlb_all(void); +extern void flush_tlb_all_local(void *); /* * flush_tlb_mm() @@ -88,7 +83,6 @@ static inline void flush_tlb_range(struct vm_area_struct *vma, if (npages >= 512) /* 2MB of space: arbitrary, should be tuned */ flush_tlb_all(); else { - preempt_disable(); mtsp(vma->vm_mm->context,1); purge_tlb_start(); if (split_tlb) { @@ -102,7 +96,6 @@ static inline void flush_tlb_range(struct vm_area_struct *vma, pdtlb(start); start += PAGE_SIZE; } - preempt_enable(); } purge_tlb_end(); } |