From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- include/asm-ppc64/tlbflush.h | 54 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 include/asm-ppc64/tlbflush.h (limited to 'include/asm-ppc64/tlbflush.h') diff --git a/include/asm-ppc64/tlbflush.h b/include/asm-ppc64/tlbflush.h new file mode 100644 index 00000000000..45411a67e08 --- /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 +#include + +#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 */ -- cgit v1.2.3