diff options
Diffstat (limited to 'include/asm-i386/pgalloc.h')
| -rw-r--r-- | include/asm-i386/pgalloc.h | 35 |
1 files changed, 16 insertions, 19 deletions
diff --git a/include/asm-i386/pgalloc.h b/include/asm-i386/pgalloc.h index fd01afad1..5cb20763d 100644 --- a/include/asm-i386/pgalloc.h +++ b/include/asm-i386/pgalloc.h @@ -187,6 +187,7 @@ extern inline void set_pgdir(unsigned long address, pgd_t entry) * - flush_tlb_mm(mm) flushes the specified mm context TLB's * - flush_tlb_page(vma, vmaddr) flushes one page * - flush_tlb_range(mm, start, end) flushes a range of pages + * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables * * ..but the i386 has somewhat limited tlb flushing capabilities, * and page-granular flushes are available only on i486 and up. @@ -220,11 +221,6 @@ static inline void flush_tlb_range(struct mm_struct *mm, #else -/* - * We aren't very clever about this yet - SMP could certainly - * avoid some global flushes.. - */ - #include <asm/smp.h> #define local_flush_tlb() \ @@ -242,23 +238,24 @@ static inline void flush_tlb_range(struct mm_struct * mm, unsigned long start, u flush_tlb_mm(mm); } -extern volatile unsigned long smp_invalidate_needed; -extern unsigned int cpu_tlbbad[NR_CPUS]; +#define TLBSTATE_OK 1 +#define TLBSTATE_LAZY 2 +#define TLBSTATE_OLD 3 -static inline void do_flush_tlb_local(void) +struct tlb_state { - unsigned long cpu = smp_processor_id(); - struct mm_struct *mm = current->mm; - - clear_bit(cpu, &smp_invalidate_needed); - if (mm) { - set_bit(cpu, &mm->cpu_vm_mask); - local_flush_tlb(); - } else { - cpu_tlbbad[cpu] = 1; - } -} + struct mm_struct *active_mm; + int state; +}; +extern struct tlb_state cpu_tlbstate[NR_CPUS]; + #endif +extern inline void flush_tlb_pgtables(struct mm_struct *mm, + unsigned long start, unsigned long end) +{ + /* i386 does not keep any page table caches in TLB */ +} + #endif /* _I386_PGALLOC_H */ |