powerpc: Add a local_flush_tlb_page to handle kmap_atomic invalidates

[deliverable/linux.git] / arch / powerpc / include / asm / tlbflush.h

diff --git a/arch/powerpc/include/asm/tlbflush.h b/arch/powerpc/include/asm/tlbflush.h
index a2c6bfd85fb7a38ab6d002373c24afbf8648399a..93716a9f4e162783ba5700c37f87a641da07fbfd 100644 (file)
--- a/arch/powerpc/include/asm/tlbflush.h
+++ b/arch/powerpc/include/asm/tlbflush.h
@@ -6,6 +6,7 @@
  *
  *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
  *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - local_flush_tlb_page(vmaddr) flushes one page on the local processor
  *  - 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
@@ -44,6 +45,11 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
        _tlbil_pid(mm->context.id);
 }
 
+static inline void local_flush_tlb_page(unsigned long vmaddr)
+{
+       _tlbil_va(vmaddr, 0);
+}
+
 static inline void flush_tlb_page(struct vm_area_struct *vma,
                                  unsigned long vmaddr)
 {
@@ -81,6 +87,10 @@ extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr
 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
                            unsigned long end);
 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
+static inline void local_flush_tlb_page(unsigned long vmaddr)
+{
+       flush_tlb_page(NULL, vmaddr);
+}
 
 #else
 /*
@@ -138,6 +148,10 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 {
 }
 
+static inline void local_flush_tlb_page(unsigned long vmaddr)
+{
+}
+
 static inline void flush_tlb_page(struct vm_area_struct *vma,
                                  unsigned long vmaddr)
 {