58 static int _fdt_blocks_misordered(const void *fdt,  in _fdt_blocks_misordered()  argument
61 	return (fdt_off_mem_rsvmap(fdt) < FDT_ALIGN(sizeof(struct fdt_header), 8))  in _fdt_blocks_misordered()
62 		|| (fdt_off_dt_struct(fdt) <  in _fdt_blocks_misordered()
63 		    (fdt_off_mem_rsvmap(fdt) + mem_rsv_size))  in _fdt_blocks_misordered()
64 		|| (fdt_off_dt_strings(fdt) <  in _fdt_blocks_misordered()
65 		    (fdt_off_dt_struct(fdt) + struct_size))  in _fdt_blocks_misordered()
66 		|| (fdt_totalsize(fdt) <  in _fdt_blocks_misordered()
67 		    (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));  in _fdt_blocks_misordered()
70 static int _fdt_rw_check_header(void *fdt)  in _fdt_rw_check_header()  argument
72 	FDT_CHECK_HEADER(fdt);  in _fdt_rw_check_header()
74 	if (fdt_version(fdt) < 17)  in _fdt_rw_check_header()
76 	if (_fdt_blocks_misordered(fdt, sizeof(struct fdt_reserve_entry),  in _fdt_rw_check_header()
77 				   fdt_size_dt_struct(fdt)))  in _fdt_rw_check_header()
79 	if (fdt_version(fdt) > 17)  in _fdt_rw_check_header()
80 		fdt_set_version(fdt, 17);  in _fdt_rw_check_header()
85 #define FDT_RW_CHECK_HEADER(fdt) \  argument
88 		if ((__err = _fdt_rw_check_header(fdt)) != 0) \
92 static inline int _fdt_data_size(void *fdt)  in _fdt_data_size()  argument
94 	return fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);  in _fdt_data_size()
97 static int _fdt_splice(void *fdt, void *splicepoint, int oldlen, int newlen)  in _fdt_splice()  argument
100 	char *end = (char *)fdt + _fdt_data_size(fdt);  in _fdt_splice()
104 	if ((end - oldlen + newlen) > ((char *)fdt + fdt_totalsize(fdt)))  in _fdt_splice()
110 static int _fdt_splice_mem_rsv(void *fdt, struct fdt_reserve_entry *p,  in _fdt_splice_mem_rsv()  argument
115 	err = _fdt_splice(fdt, p, oldn * sizeof(*p), newn * sizeof(*p));  in _fdt_splice_mem_rsv()
118 	fdt_set_off_dt_struct(fdt, fdt_off_dt_struct(fdt) + delta);  in _fdt_splice_mem_rsv()
119 	fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);  in _fdt_splice_mem_rsv()
123 static int _fdt_splice_struct(void *fdt, void *p,  in _fdt_splice_struct()  argument
129 	if ((err = _fdt_splice(fdt, p, oldlen, newlen)))  in _fdt_splice_struct()
132 	fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta);  in _fdt_splice_struct()
133 	fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);  in _fdt_splice_struct()
137 static int _fdt_splice_string(void *fdt, int newlen)  in _fdt_splice_string()  argument
139 	void *p = (char *)fdt  in _fdt_splice_string()
140 		+ fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);  in _fdt_splice_string()
143 	if ((err = _fdt_splice(fdt, p, 0, newlen)))  in _fdt_splice_string()
146 	fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) + newlen);  in _fdt_splice_string()
150 static int _fdt_find_add_string(void *fdt, const char *s)  in _fdt_find_add_string()  argument
152 	char *strtab = (char *)fdt + fdt_off_dt_strings(fdt);  in _fdt_find_add_string()
158 	p = _fdt_find_string(strtab, fdt_size_dt_strings(fdt), s);  in _fdt_find_add_string()
163 	new = strtab + fdt_size_dt_strings(fdt);  in _fdt_find_add_string()
164 	err = _fdt_splice_string(fdt, len);  in _fdt_find_add_string()
172 int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size)  in fdt_add_mem_rsv()  argument
177 	FDT_RW_CHECK_HEADER(fdt);  in fdt_add_mem_rsv()
179 	re = _fdt_mem_rsv_w(fdt, fdt_num_mem_rsv(fdt));  in fdt_add_mem_rsv()
180 	err = _fdt_splice_mem_rsv(fdt, re, 0, 1);  in fdt_add_mem_rsv()
189 int fdt_del_mem_rsv(void *fdt, int n)  in fdt_del_mem_rsv()  argument
191 	struct fdt_reserve_entry *re = _fdt_mem_rsv_w(fdt, n);  in fdt_del_mem_rsv()
194 	FDT_RW_CHECK_HEADER(fdt);  in fdt_del_mem_rsv()
196 	if (n >= fdt_num_mem_rsv(fdt))  in fdt_del_mem_rsv()
199 	err = _fdt_splice_mem_rsv(fdt, re, 1, 0);  in fdt_del_mem_rsv()
205 static int _fdt_resize_property(void *fdt, int nodeoffset, const char *name,  in _fdt_resize_property()  argument
211 	*prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);  in _fdt_resize_property()
215 	if ((err = _fdt_splice_struct(fdt, (*prop)->data, FDT_TAGALIGN(oldlen),  in _fdt_resize_property()
223 static int _fdt_add_property(void *fdt, int nodeoffset, const char *name,  in _fdt_add_property()  argument
231 	if ((nextoffset = _fdt_check_node_offset(fdt, nodeoffset)) < 0)  in _fdt_add_property()
234 	namestroff = _fdt_find_add_string(fdt, name);  in _fdt_add_property()
238 	*prop = _fdt_offset_ptr_w(fdt, nextoffset);  in _fdt_add_property()
241 	err = _fdt_splice_struct(fdt, *prop, 0, proplen);  in _fdt_add_property()
251 int fdt_set_name(void *fdt, int nodeoffset, const char *name)  in fdt_set_name()  argument
257 	FDT_RW_CHECK_HEADER(fdt);  in fdt_set_name()
259 	namep = (char *)(uintptr_t)fdt_get_name(fdt, nodeoffset, &oldlen);  in fdt_set_name()
265 	err = _fdt_splice_struct(fdt, namep, FDT_TAGALIGN(oldlen+1),  in fdt_set_name()
274 int fdt_setprop(void *fdt, int nodeoffset, const char *name,  in fdt_setprop()  argument
280 	FDT_RW_CHECK_HEADER(fdt);  in fdt_setprop()
282 	err = _fdt_resize_property(fdt, nodeoffset, name, len, &prop);  in fdt_setprop()
284 		err = _fdt_add_property(fdt, nodeoffset, name, len, &prop);  in fdt_setprop()
292 int fdt_appendprop(void *fdt, int nodeoffset, const char *name,  in fdt_appendprop()  argument
298 	FDT_RW_CHECK_HEADER(fdt);  in fdt_appendprop()
300 	prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);  in fdt_appendprop()
303 		err = _fdt_splice_struct(fdt, prop->data,  in fdt_appendprop()
311 		err = _fdt_add_property(fdt, nodeoffset, name, len, &prop);  in fdt_appendprop()
319 int fdt_delprop(void *fdt, int nodeoffset, const char *name)  in fdt_delprop()  argument
324 	FDT_RW_CHECK_HEADER(fdt);  in fdt_delprop()
326 	prop = fdt_get_property_w(fdt, nodeoffset, name, &len);  in fdt_delprop()
331 	return _fdt_splice_struct(fdt, prop, proplen, 0);  in fdt_delprop()
334 int fdt_add_subnode_namelen(void *fdt, int parentoffset,  in fdt_add_subnode_namelen()  argument
344 	FDT_RW_CHECK_HEADER(fdt);  in fdt_add_subnode_namelen()
346 	offset = fdt_subnode_offset_namelen(fdt, parentoffset, name, namelen);  in fdt_add_subnode_namelen()
353 	fdt_next_tag(fdt, parentoffset, &nextoffset); /* skip the BEGIN_NODE */  in fdt_add_subnode_namelen()
356 		tag = fdt_next_tag(fdt, offset, &nextoffset);  in fdt_add_subnode_namelen()
359 	nh = _fdt_offset_ptr_w(fdt, offset);  in fdt_add_subnode_namelen()
362 	err = _fdt_splice_struct(fdt, nh, 0, nodelen);  in fdt_add_subnode_namelen()
375 int fdt_add_subnode(void *fdt, int parentoffset, const char *name)  in fdt_add_subnode()  argument
377 	return fdt_add_subnode_namelen(fdt, parentoffset, name, strlen(name));  in fdt_add_subnode()
380 int fdt_del_node(void *fdt, int nodeoffset)  in fdt_del_node()  argument
384 	FDT_RW_CHECK_HEADER(fdt);  in fdt_del_node()
386 	endoffset = _fdt_node_end_offset(fdt, nodeoffset);  in fdt_del_node()
390 	return _fdt_splice_struct(fdt, _fdt_offset_ptr_w(fdt, nodeoffset),  in fdt_del_node()
416 int fdt_open_into(const void *fdt, void *buf, int bufsize)  in fdt_open_into()  argument
421 	const char *fdtstart = fdt;  in fdt_open_into()
422 	const char *fdtend = fdtstart + fdt_totalsize(fdt);  in fdt_open_into()
425 	FDT_CHECK_HEADER(fdt);  in fdt_open_into()
427 	mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)  in fdt_open_into()
430 	if (fdt_version(fdt) >= 17) {  in fdt_open_into()
431 		struct_size = fdt_size_dt_struct(fdt);  in fdt_open_into()
434 		while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)  in fdt_open_into()
440 	if (!_fdt_blocks_misordered(fdt, mem_rsv_size, struct_size)) {  in fdt_open_into()
442 		err = fdt_move(fdt, buf, bufsize);  in fdt_open_into()
453 		+ struct_size + fdt_size_dt_strings(fdt);  in fdt_open_into()
468 	_fdt_packblocks(fdt, tmp, mem_rsv_size, struct_size);  in fdt_open_into()
475 	fdt_set_boot_cpuid_phys(buf, fdt_boot_cpuid_phys(fdt));  in fdt_open_into()
480 int fdt_pack(void *fdt)  in fdt_pack()  argument
484 	FDT_RW_CHECK_HEADER(fdt);  in fdt_pack()
486 	mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)  in fdt_pack()
488 	_fdt_packblocks(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt));  in fdt_pack()
489 	fdt_set_totalsize(fdt, _fdt_data_size(fdt));  in fdt_pack()