slice.h (1249B)
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 26struct mm_struct; 27 28unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len, 29 unsigned long flags, unsigned int psize, 30 int topdown); 31 32unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr); 33 34void slice_set_range_psize(struct mm_struct *mm, unsigned long start, 35 unsigned long len, unsigned int psize); 36 37void slice_init_new_context_exec(struct mm_struct *mm); 38void slice_setup_new_exec(void); 39 40#endif /* __ASSEMBLY__ */ 41 42#endif /* _ASM_POWERPC_BOOK3S_64_SLICE_H */