1 /* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */ 2 #ifndef LIBFDT_INTERNAL_H 3 #define LIBFDT_INTERNAL_H 4 /* 5 * libfdt - Flat Device Tree manipulation 6 * Copyright (C) 2006 David Gibson, IBM Corporation. 7 */ 8 #include <fdt.h> 9 10 #define FDT_ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) 11 #define FDT_TAGALIGN(x) (FDT_ALIGN((x), FDT_TAGSIZE)) 12 13 int fdt_ro_probe_(const void *fdt); 14 #define FDT_RO_PROBE(fdt) \ 15 { \ 16 int err_; \ 17 if ((err_ = fdt_ro_probe_(fdt)) != 0) \ 18 return err_; \ 19 } 20 21 int fdt_check_node_offset_(const void *fdt, int offset); 22 int fdt_check_prop_offset_(const void *fdt, int offset); 23 const char *fdt_find_string_(const char *strtab, int tabsize, const char *s); 24 int fdt_node_end_offset_(void *fdt, int nodeoffset); 25 26 static inline const void *fdt_offset_ptr_(const void *fdt, int offset) 27 { 28 return (const char *)fdt + fdt_off_dt_struct(fdt) + offset; 29 } 30 31 static inline void *fdt_offset_ptr_w_(void *fdt, int offset) 32 { 33 return (void *)(uintptr_t)fdt_offset_ptr_(fdt, offset); 34 } 35 36 static inline const struct fdt_reserve_entry *fdt_mem_rsv_(const void *fdt, int n) 37 { 38 const struct fdt_reserve_entry *rsv_table = 39 (const struct fdt_reserve_entry *) 40 ((const char *)fdt + fdt_off_mem_rsvmap(fdt)); 41 42 return rsv_table + n; 43 } 44 static inline struct fdt_reserve_entry *fdt_mem_rsv_w_(void *fdt, int n) 45 { 46 return (void *)(uintptr_t)fdt_mem_rsv_(fdt, n); 47 } 48 49 #define FDT_SW_MAGIC (~FDT_MAGIC) 50 51 #endif /* LIBFDT_INTERNAL_H */ 52