13 static int fdt_blocks_misordered_(const void *fdt,  in fdt_blocks_misordered_()  argument
16 	return (fdt_off_mem_rsvmap(fdt) < FDT_ALIGN(sizeof(struct fdt_header), 8))  in fdt_blocks_misordered_()
17 		|| (fdt_off_dt_struct(fdt) <  in fdt_blocks_misordered_()
18 		    (fdt_off_mem_rsvmap(fdt) + mem_rsv_size))  in fdt_blocks_misordered_()
19 		|| (fdt_off_dt_strings(fdt) <  in fdt_blocks_misordered_()
20 		    (fdt_off_dt_struct(fdt) + struct_size))  in fdt_blocks_misordered_()
21 		|| (fdt_totalsize(fdt) <  in fdt_blocks_misordered_()
22 		    (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));  in fdt_blocks_misordered_()
25 static int fdt_rw_probe_(void *fdt)  in fdt_rw_probe_()  argument
27 	FDT_RO_PROBE(fdt);  in fdt_rw_probe_()
29 	if (fdt_version(fdt) < 17)  in fdt_rw_probe_()
31 	if (fdt_blocks_misordered_(fdt, sizeof(struct fdt_reserve_entry),  in fdt_rw_probe_()
32 				   fdt_size_dt_struct(fdt)))  in fdt_rw_probe_()
34 	if (fdt_version(fdt) > 17)  in fdt_rw_probe_()
35 		fdt_set_version(fdt, 17);  in fdt_rw_probe_()
40 #define FDT_RW_PROBE(fdt) \  argument
43 		if ((err_ = fdt_rw_probe_(fdt)) != 0) \
47 static inline int fdt_data_size_(void *fdt)  in fdt_data_size_()  argument
49 	return fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);  in fdt_data_size_()
52 static int fdt_splice_(void *fdt, void *splicepoint, int oldlen, int newlen)  in fdt_splice_()  argument
55 	char *end = (char *)fdt + fdt_data_size_(fdt);  in fdt_splice_()
59 	if ((p < (char *)fdt) || ((end - oldlen + newlen) < (char *)fdt))  in fdt_splice_()
61 	if ((end - oldlen + newlen) > ((char *)fdt + fdt_totalsize(fdt)))  in fdt_splice_()
67 static int fdt_splice_mem_rsv_(void *fdt, struct fdt_reserve_entry *p,  in fdt_splice_mem_rsv_()  argument
72 	err = fdt_splice_(fdt, p, oldn * sizeof(*p), newn * sizeof(*p));  in fdt_splice_mem_rsv_()
75 	fdt_set_off_dt_struct(fdt, fdt_off_dt_struct(fdt) + delta);  in fdt_splice_mem_rsv_()
76 	fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);  in fdt_splice_mem_rsv_()
80 static int fdt_splice_struct_(void *fdt, void *p,  in fdt_splice_struct_()  argument
86 	if ((err = fdt_splice_(fdt, p, oldlen, newlen)))  in fdt_splice_struct_()
89 	fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta);  in fdt_splice_struct_()
90 	fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);  in fdt_splice_struct_()
95 static void fdt_del_last_string_(void *fdt, const char *s)  in fdt_del_last_string_()  argument
99 	fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) - newlen);  in fdt_del_last_string_()
102 static int fdt_splice_string_(void *fdt, int newlen)  in fdt_splice_string_()  argument
104 	void *p = (char *)fdt  in fdt_splice_string_()
105 		+ fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);  in fdt_splice_string_()
108 	if ((err = fdt_splice_(fdt, p, 0, newlen)))  in fdt_splice_string_()
111 	fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) + newlen);  in fdt_splice_string_()
115 static int fdt_find_add_string_(void *fdt, const char *s, int *allocated)  in fdt_find_add_string_()  argument
117 	char *strtab = (char *)fdt + fdt_off_dt_strings(fdt);  in fdt_find_add_string_()
125 	p = fdt_find_string_(strtab, fdt_size_dt_strings(fdt), s);  in fdt_find_add_string_()
130 	new = strtab + fdt_size_dt_strings(fdt);  in fdt_find_add_string_()
131 	err = fdt_splice_string_(fdt, len);  in fdt_find_add_string_()
141 int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size)  in fdt_add_mem_rsv()  argument
146 	FDT_RW_PROBE(fdt);  in fdt_add_mem_rsv()
148 	re = fdt_mem_rsv_w_(fdt, fdt_num_mem_rsv(fdt));  in fdt_add_mem_rsv()
149 	err = fdt_splice_mem_rsv_(fdt, re, 0, 1);  in fdt_add_mem_rsv()
158 int fdt_del_mem_rsv(void *fdt, int n)  in fdt_del_mem_rsv()  argument
160 	struct fdt_reserve_entry *re = fdt_mem_rsv_w_(fdt, n);  in fdt_del_mem_rsv()
162 	FDT_RW_PROBE(fdt);  in fdt_del_mem_rsv()
164 	if (n >= fdt_num_mem_rsv(fdt))  in fdt_del_mem_rsv()
167 	return fdt_splice_mem_rsv_(fdt, re, 1, 0);  in fdt_del_mem_rsv()
170 static int fdt_resize_property_(void *fdt, int nodeoffset, const char *name,  in fdt_resize_property_()  argument
176 	*prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);  in fdt_resize_property_()
180 	if ((err = fdt_splice_struct_(fdt, (*prop)->data, FDT_TAGALIGN(oldlen),  in fdt_resize_property_()
188 static int fdt_add_property_(void *fdt, int nodeoffset, const char *name,  in fdt_add_property_()  argument
197 	if ((nextoffset = fdt_check_node_offset_(fdt, nodeoffset)) < 0)  in fdt_add_property_()
200 	namestroff = fdt_find_add_string_(fdt, name, &allocated);  in fdt_add_property_()
204 	*prop = fdt_offset_ptr_w_(fdt, nextoffset);  in fdt_add_property_()
207 	err = fdt_splice_struct_(fdt, *prop, 0, proplen);  in fdt_add_property_()
210 			fdt_del_last_string_(fdt, name);  in fdt_add_property_()
220 int fdt_set_name(void *fdt, int nodeoffset, const char *name)  in fdt_set_name()  argument
226 	FDT_RW_PROBE(fdt);  in fdt_set_name()
228 	namep = (char *)(uintptr_t)fdt_get_name(fdt, nodeoffset, &oldlen);  in fdt_set_name()
234 	err = fdt_splice_struct_(fdt, namep, FDT_TAGALIGN(oldlen+1),  in fdt_set_name()
243 int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,  in fdt_setprop_placeholder()  argument
249 	FDT_RW_PROBE(fdt);  in fdt_setprop_placeholder()
251 	err = fdt_resize_property_(fdt, nodeoffset, name, len, &prop);  in fdt_setprop_placeholder()
253 		err = fdt_add_property_(fdt, nodeoffset, name, len, &prop);  in fdt_setprop_placeholder()
261 int fdt_setprop(void *fdt, int nodeoffset, const char *name,  in fdt_setprop()  argument
267 	err = fdt_setprop_placeholder(fdt, nodeoffset, name, len, &prop_data);  in fdt_setprop()
276 int fdt_appendprop(void *fdt, int nodeoffset, const char *name,  in fdt_appendprop()  argument
282 	FDT_RW_PROBE(fdt);  in fdt_appendprop()
284 	prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);  in fdt_appendprop()
287 		err = fdt_splice_struct_(fdt, prop->data,  in fdt_appendprop()
295 		err = fdt_add_property_(fdt, nodeoffset, name, len, &prop);  in fdt_appendprop()
303 int fdt_delprop(void *fdt, int nodeoffset, const char *name)  in fdt_delprop()  argument
308 	FDT_RW_PROBE(fdt);  in fdt_delprop()
310 	prop = fdt_get_property_w(fdt, nodeoffset, name, &len);  in fdt_delprop()
315 	return fdt_splice_struct_(fdt, prop, proplen, 0);  in fdt_delprop()
318 int fdt_add_subnode_namelen(void *fdt, int parentoffset,  in fdt_add_subnode_namelen()  argument
328 	FDT_RW_PROBE(fdt);  in fdt_add_subnode_namelen()
330 	offset = fdt_subnode_offset_namelen(fdt, parentoffset, name, namelen);  in fdt_add_subnode_namelen()
337 	fdt_next_tag(fdt, parentoffset, &nextoffset); /* skip the BEGIN_NODE */  in fdt_add_subnode_namelen()
340 		tag = fdt_next_tag(fdt, offset, &nextoffset);  in fdt_add_subnode_namelen()
343 	nh = fdt_offset_ptr_w_(fdt, offset);  in fdt_add_subnode_namelen()
346 	err = fdt_splice_struct_(fdt, nh, 0, nodelen);  in fdt_add_subnode_namelen()
359 int fdt_add_subnode(void *fdt, int parentoffset, const char *name)  in fdt_add_subnode()  argument
361 	return fdt_add_subnode_namelen(fdt, parentoffset, name, strlen(name));  in fdt_add_subnode()
364 int fdt_del_node(void *fdt, int nodeoffset)  in fdt_del_node()  argument
368 	FDT_RW_PROBE(fdt);  in fdt_del_node()
370 	endoffset = fdt_node_end_offset_(fdt, nodeoffset);  in fdt_del_node()
374 	return fdt_splice_struct_(fdt, fdt_offset_ptr_w_(fdt, nodeoffset),  in fdt_del_node()
400 int fdt_open_into(const void *fdt, void *buf, int bufsize)  in fdt_open_into()  argument
405 	const char *fdtstart = fdt;  in fdt_open_into()
406 	const char *fdtend = fdtstart + fdt_totalsize(fdt);  in fdt_open_into()
409 	FDT_RO_PROBE(fdt);  in fdt_open_into()
411 	mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)  in fdt_open_into()
414 	if (fdt_version(fdt) >= 17) {  in fdt_open_into()
415 		struct_size = fdt_size_dt_struct(fdt);  in fdt_open_into()
418 		while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)  in fdt_open_into()
424 	if (!fdt_blocks_misordered_(fdt, mem_rsv_size, struct_size)) {  in fdt_open_into()
426 		err = fdt_move(fdt, buf, bufsize);  in fdt_open_into()
437 		+ struct_size + fdt_size_dt_strings(fdt);  in fdt_open_into()
452 	fdt_packblocks_(fdt, tmp, mem_rsv_size, struct_size);  in fdt_open_into()
459 	fdt_set_boot_cpuid_phys(buf, fdt_boot_cpuid_phys(fdt));  in fdt_open_into()
464 int fdt_pack(void *fdt)  in fdt_pack()  argument
468 	FDT_RW_PROBE(fdt);  in fdt_pack()
470 	mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)  in fdt_pack()
472 	fdt_packblocks_(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt));  in fdt_pack()
473 	fdt_set_totalsize(fdt, fdt_data_size_(fdt));  in fdt_pack()