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 #ifndef __ASSEMBLY__ 6 7 #ifdef CONFIG_PPC_64S_HASH_MMU 8 #ifdef CONFIG_HUGETLB_PAGE 9 #define HAVE_ARCH_HUGETLB_UNMAPPED_AREA 10 #endif 11 #define HAVE_ARCH_UNMAPPED_AREA 12 #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN 13 #endif 14 15 #define SLICE_LOW_SHIFT 28 16 #define SLICE_LOW_TOP (0x100000000ul) 17 #define SLICE_NUM_LOW (SLICE_LOW_TOP >> SLICE_LOW_SHIFT) 18 #define GET_LOW_SLICE_INDEX(addr) ((addr) >> SLICE_LOW_SHIFT) 19 20 #define SLICE_HIGH_SHIFT 40 21 #define SLICE_NUM_HIGH (H_PGTABLE_RANGE >> SLICE_HIGH_SHIFT) 22 #define GET_HIGH_SLICE_INDEX(addr) ((addr) >> SLICE_HIGH_SHIFT) 23 24 #define SLB_ADDR_LIMIT_DEFAULT DEFAULT_MAP_WINDOW_USER64 25 26 struct mm_struct; 27 28 unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len, 29 unsigned long flags, unsigned int psize, 30 int topdown); 31 32 unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr); 33 34 void slice_set_range_psize(struct mm_struct *mm, unsigned long start, 35 unsigned long len, unsigned int psize); 36 37 void slice_init_new_context_exec(struct mm_struct *mm); 38 void slice_setup_new_exec(void); 39 40 #endif /* __ASSEMBLY__ */ 41 42 #endif /* _ASM_POWERPC_BOOK3S_64_SLICE_H */ 43