diff options
Diffstat (limited to 'include/asm-parisc/tlbflush.h')
| -rw-r--r-- | include/asm-parisc/tlbflush.h | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/include/asm-parisc/tlbflush.h b/include/asm-parisc/tlbflush.h deleted file mode 100644 index b72ec66db69..00000000000 --- a/include/asm-parisc/tlbflush.h +++ /dev/null @@ -1,80 +0,0 @@ -#ifndef _PARISC_TLBFLUSH_H -#define _PARISC_TLBFLUSH_H - -/* TLB flushing routines.... */ - -#include <linux/mm.h> -#include <linux/sched.h> -#include <asm/mmu_context.h> - - -/* This is for the serialisation of PxTLB broadcasts. At least on the - * 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. 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) - -extern void flush_tlb_all(void); -extern void flush_tlb_all_local(void *); - -/* - * flush_tlb_mm() - * - * XXX This code is NOT valid for HP-UX compatibility processes, - * (although it will probably work 99% of the time). HP-UX - * processes are free to play with the space id's and save them - * over long periods of time, etc. so we have to preserve the - * space and just flush the entire tlb. We need to check the - * personality in order to do that, but the personality is not - * currently being set correctly. - * - * Of course, Linux processes could do the same thing, but - * we don't support that (and the compilers, dynamic linker, - * etc. do not do that). - */ - -static inline void flush_tlb_mm(struct mm_struct *mm) -{ - BUG_ON(mm == &init_mm); /* Should never happen */ - -#ifdef CONFIG_SMP - flush_tlb_all(); -#else - if (mm) { - if (mm->context != 0) - free_sid(mm->context); - mm->context = alloc_sid(); - if (mm == current->active_mm) - load_context(mm->context); - } -#endif -} - -static inline void flush_tlb_page(struct vm_area_struct *vma, - unsigned long addr) -{ - /* For one page, it's not worth testing the split_tlb variable */ - - mb(); - mtsp(vma->vm_mm->context,1); - purge_tlb_start(); - pdtlb(addr); - pitlb(addr); - purge_tlb_end(); -} - -void __flush_tlb_range(unsigned long sid, - unsigned long start, unsigned long end); - -#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end) - -#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end) - -#endif |