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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ppc64/tlbflush.h | |
download | linux-fsl-qoriq-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-ppc64/tlbflush.h')
-rw-r--r-- | include/asm-ppc64/tlbflush.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/include/asm-ppc64/tlbflush.h b/include/asm-ppc64/tlbflush.h new file mode 100644 index 0000000..45411a6 --- /dev/null +++ b/include/asm-ppc64/tlbflush.h @@ -0,0 +1,54 @@ +#ifndef _PPC64_TLBFLUSH_H +#define _PPC64_TLBFLUSH_H + +/* + * TLB flushing: + * + * - flush_tlb_mm(mm) flushes the specified mm context TLB's + * - flush_tlb_page(vma, vmaddr) flushes one page + * - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB + * - flush_tlb_range(vma, start, end) flushes a range of pages + * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages + * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables + */ + +#include <linux/percpu.h> +#include <asm/page.h> + +#define PPC64_TLB_BATCH_NR 192 + +struct mm_struct; +struct ppc64_tlb_batch { + unsigned long index; + unsigned long context; + struct mm_struct *mm; + pte_t pte[PPC64_TLB_BATCH_NR]; + unsigned long addr[PPC64_TLB_BATCH_NR]; + unsigned long vaddr[PPC64_TLB_BATCH_NR]; +}; +DECLARE_PER_CPU(struct ppc64_tlb_batch, ppc64_tlb_batch); + +extern void __flush_tlb_pending(struct ppc64_tlb_batch *batch); + +static inline void flush_tlb_pending(void) +{ + struct ppc64_tlb_batch *batch = &get_cpu_var(ppc64_tlb_batch); + + if (batch->index) + __flush_tlb_pending(batch); + put_cpu_var(ppc64_tlb_batch); +} + +#define flush_tlb_mm(mm) flush_tlb_pending() +#define flush_tlb_page(vma, addr) flush_tlb_pending() +#define flush_tlb_page_nohash(vma, addr) do { } while (0) +#define flush_tlb_range(vma, start, end) \ + do { (void)(start); flush_tlb_pending(); } while (0) +#define flush_tlb_kernel_range(start, end) flush_tlb_pending() +#define flush_tlb_pgtables(mm, start, end) do { } while (0) + +extern void flush_hash_page(unsigned long context, unsigned long ea, pte_t pte, + int local); +void flush_hash_range(unsigned long context, unsigned long number, int local); + +#endif /* _PPC64_TLBFLUSH_H */ |