arch/powerpc/include/asm/book3s/64/slice.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_POWERPC_BOOK3S_64_SLICE_H
   3 #define _ASM_POWERPC_BOOK3S_64_SLICE_H
   4
   5 #ifdef CONFIG_PPC_MM_SLICES
   6
   7 #define SLICE_LOW_SHIFT         28
   8 #define SLICE_LOW_TOP           (0x100000000ul)
   9 #define SLICE_NUM_LOW           (SLICE_LOW_TOP >> SLICE_LOW_SHIFT)
  10 #define GET_LOW_SLICE_INDEX(addr)       ((addr) >> SLICE_LOW_SHIFT)
  11
  12 #define SLICE_HIGH_SHIFT        40
  13 #define SLICE_NUM_HIGH          (H_PGTABLE_RANGE >> SLICE_HIGH_SHIFT)
  14 #define GET_HIGH_SLICE_INDEX(addr)      ((addr) >> SLICE_HIGH_SHIFT)
  15
  16 #else /* CONFIG_PPC_MM_SLICES */
  17
  18 #define get_slice_psize(mm, addr)       ((mm)->context.user_psize)
  19 #define slice_set_user_psize(mm, psize)         \
  20 do {                                            \
  21         (mm)->context.user_psize = (psize);     \
  22         (mm)->context.sllp = SLB_VSID_USER | mmu_psize_defs[(psize)].sllp; \
  23 } while (0)
  24
  25 #endif /* CONFIG_PPC_MM_SLICES */
  26
  27 #endif /* _ASM_POWERPC_BOOK3S_64_SLICE_H */