arch/powerpc/include/asm/slice.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_POWERPC_SLICE_H
   3 #define _ASM_POWERPC_SLICE_H
   4
   5 #ifdef CONFIG_PPC_BOOK3S_64
   6 #include <asm/book3s/64/slice.h>
   7 #elif defined(CONFIG_PPC_MMU_NOHASH_32)
   8 #include <asm/nohash/32/slice.h>
   9 #endif
  10
  11 #ifndef __ASSEMBLY__
  12
  13 struct mm_struct;
  14
  15 #ifdef CONFIG_PPC_MM_SLICES
  16
  17 #ifdef CONFIG_HUGETLB_PAGE
  18 #define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
  19 #endif
  20 #define HAVE_ARCH_UNMAPPED_AREA
  21 #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
  22
  23 unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
  24                                       unsigned long flags, unsigned int psize,
  25                                       int topdown);
  26
  27 unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr);
  28
  29 void slice_set_range_psize(struct mm_struct *mm, unsigned long start,
  30                            unsigned long len, unsigned int psize);
  31
  32 void slice_init_new_context_exec(struct mm_struct *mm);
  33 void slice_setup_new_exec(void);
  34
  35 #else /* CONFIG_PPC_MM_SLICES */
  36
  37 static inline void slice_init_new_context_exec(struct mm_struct *mm) {}
  38
  39 static inline unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr)
  40 {
  41         return 0;
  42 }
  43
  44 #endif /* CONFIG_PPC_MM_SLICES */
  45
  46 #endif /* __ASSEMBLY__ */
  47
  48 #endif /* _ASM_POWERPC_SLICE_H */