[PATCH] open: cleanup in lookup_flags()
[pandora-kernel.git] / include / asm-ppc64 / tlbflush.h
1 #ifndef _PPC64_TLBFLUSH_H
2 #define _PPC64_TLBFLUSH_H
3
4 /*
5  * TLB flushing:
6  *
7  *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
8  *  - flush_tlb_page(vma, vmaddr) flushes one page
9  *  - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB
10  *  - flush_tlb_range(vma, start, end) flushes a range of pages
11  *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
12  *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
13  */
14
15 #include <linux/percpu.h>
16 #include <asm/page.h>
17
18 #define PPC64_TLB_BATCH_NR 192
19
20 struct mm_struct;
21 struct ppc64_tlb_batch {
22         unsigned long index;
23         unsigned long context;
24         struct mm_struct *mm;
25         pte_t pte[PPC64_TLB_BATCH_NR];
26         unsigned long addr[PPC64_TLB_BATCH_NR];
27         unsigned long vaddr[PPC64_TLB_BATCH_NR];
28         unsigned int large;
29 };
30 DECLARE_PER_CPU(struct ppc64_tlb_batch, ppc64_tlb_batch);
31
32 extern void __flush_tlb_pending(struct ppc64_tlb_batch *batch);
33
34 static inline void flush_tlb_pending(void)
35 {
36         struct ppc64_tlb_batch *batch = &get_cpu_var(ppc64_tlb_batch);
37
38         if (batch->index)
39                 __flush_tlb_pending(batch);
40         put_cpu_var(ppc64_tlb_batch);
41 }
42
43 #define flush_tlb_mm(mm)                        flush_tlb_pending()
44 #define flush_tlb_page(vma, addr)               flush_tlb_pending()
45 #define flush_tlb_page_nohash(vma, addr)        do { } while (0)
46 #define flush_tlb_range(vma, start, end) \
47                 do { (void)(start); flush_tlb_pending(); } while (0)
48 #define flush_tlb_kernel_range(start, end)      flush_tlb_pending()
49 #define flush_tlb_pgtables(mm, start, end)      do { } while (0)
50
51 extern void flush_hash_page(unsigned long context, unsigned long ea, pte_t pte,
52                             int local);
53 void flush_hash_range(unsigned long context, unsigned long number, int local);
54
55 #endif /* _PPC64_TLBFLUSH_H */