arch/powerpc/include/asm/book3s/64/hugetlb-radix.h

   1 #ifndef _ASM_POWERPC_BOOK3S_64_HUGETLB_RADIX_H
   2 #define _ASM_POWERPC_BOOK3S_64_HUGETLB_RADIX_H
   3 /*
   4  * For radix we want generic code to handle hugetlb. But then if we want
   5  * both hash and radix to be enabled together we need to workaround the
   6  * limitations.
   7  */
   8 void radix__flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
   9 void radix__local_flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
  10 extern unsigned long
  11 radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
  12                                 unsigned long len, unsigned long pgoff,
  13                                 unsigned long flags);
  14
  15 static inline int hstate_get_psize(struct hstate *hstate)
  16 {
  17         unsigned long shift;
  18
  19         shift = huge_page_shift(hstate);
  20         if (shift == mmu_psize_defs[MMU_PAGE_2M].shift)
  21                 return MMU_PAGE_2M;
  22         else if (shift == mmu_psize_defs[MMU_PAGE_1G].shift)
  23                 return MMU_PAGE_1G;
  24         else {
  25                 WARN(1, "Wrong huge page shift\n");
  26                 return mmu_virtual_psize;
  27         }
  28 }
  29 #endif