19 struct regions {  struct
93 				       u32 end, struct regions *regions)  in intersects_reserved_region()  argument
106 	if (regions->reserved_mem < 0)  in intersects_reserved_region()
110 	for (subnode = fdt_first_subnode(fdt, regions->reserved_mem);  in intersects_reserved_region()
117 		while (len >= (regions->reserved_mem_addr_cells +  in intersects_reserved_region()
118 			       regions->reserved_mem_size_cells)) {  in intersects_reserved_region()
121 			if (regions->reserved_mem_addr_cells == 2)  in intersects_reserved_region()
124 			reg += regions->reserved_mem_addr_cells;  in intersects_reserved_region()
125 			len -= 4 * regions->reserved_mem_addr_cells;  in intersects_reserved_region()
128 			if (regions->reserved_mem_size_cells == 2)  in intersects_reserved_region()
131 			reg += regions->reserved_mem_size_cells;  in intersects_reserved_region()
132 			len -= 4 * regions->reserved_mem_size_cells;  in intersects_reserved_region()
134 			if (base >= regions->pa_end)  in intersects_reserved_region()
146 				       u32 end, struct regions *regions)  in intersects_occupied_region()  argument
148 	if (regions_intersect(start, end, regions->zimage_start,  in intersects_occupied_region()
149 			      regions->zimage_start + regions->zimage_size))  in intersects_occupied_region()
152 	if (regions_intersect(start, end, regions->initrd_start,  in intersects_occupied_region()
153 			      regions->initrd_start + regions->initrd_size))  in intersects_occupied_region()
156 	if (regions_intersect(start, end, regions->dtb_start,  in intersects_occupied_region()
157 			      regions->dtb_start + regions->dtb_size))  in intersects_occupied_region()
160 	return intersects_reserved_region(fdt, start, end, regions);  in intersects_occupied_region()
163 static u32 count_suitable_regions(const void *fdt, struct regions *regions,  in count_suitable_regions()  argument
168 	for (pa = regions->pa_start; pa < regions->pa_end; pa += SZ_2M, i++) {  in count_suitable_regions()
170 						pa + regions->image_size,  in count_suitable_regions()
171 						regions)) {  in count_suitable_regions()
181 /* The caller ensures that num is within the range of regions.*/
330 	struct regions regions;  in kaslr_early_init()  local
358 	regions.image_size = image_base % SZ_128M + round_up(image_size, SZ_2M);  in kaslr_early_init()
359 	regions.pa_start = round_down(image_base, SZ_128M);  in kaslr_early_init()
360 	regions.pa_end = lowmem_top - PAGE_OFFSET + regions.pa_start;  in kaslr_early_init()
361 	regions.zimage_start = zimage_start;  in kaslr_early_init()
362 	regions.zimage_size = zimage_end - zimage_start;  in kaslr_early_init()
363 	regions.dtb_start = (u32)fdt;  in kaslr_early_init()
364 	regions.dtb_size = fdt_totalsize(fdt);  in kaslr_early_init()
370 	seed = __crc16(seed, fdt, regions.dtb_size);  in kaslr_early_init()
376 	regions.initrd_start = regions.initrd_size = 0;  in kaslr_early_init()
379 		regions.initrd_start = __memparse(p + 7, &p);  in kaslr_early_init()
381 			regions.initrd_size = __memparse(p, NULL);  in kaslr_early_init()
382 		if (regions.initrd_size == 0)  in kaslr_early_init()
383 			regions.initrd_start = 0;  in kaslr_early_init()
387 	if (regions.initrd_size == 0) {  in kaslr_early_init()
405 			regions.initrd_start = start;  in kaslr_early_init()
406 			regions.initrd_size = max_t(u64, end, U32_MAX) - start;  in kaslr_early_init()
417 		regions.pa_end = min(regions.pa_end, mem_fdt) - regions.image_size;  in kaslr_early_init()
419 		regions.pa_end = regions.pa_end - regions.image_size;  in kaslr_early_init()
421 	puthex32(regions.image_size);  in kaslr_early_init()
422 	puthex32(regions.pa_start);  in kaslr_early_init()
423 	puthex32(regions.pa_end);  in kaslr_early_init()
424 	puthex32(regions.zimage_start);  in kaslr_early_init()
425 	puthex32(regions.zimage_size);  in kaslr_early_init()
426 	puthex32(regions.dtb_start);  in kaslr_early_init()
427 	puthex32(regions.dtb_size);  in kaslr_early_init()
428 	puthex32(regions.initrd_start);  in kaslr_early_init()
429 	puthex32(regions.initrd_size);  in kaslr_early_init()
432 	regions.reserved_mem = fdt_path_offset(fdt, "/reserved-memory");  in kaslr_early_init()
433 	if (regions.reserved_mem >= 0)  in kaslr_early_init()
434 		get_cell_sizes(fdt, regions.reserved_mem,  in kaslr_early_init()
435 			       &regions.reserved_mem_addr_cells,  in kaslr_early_init()
436 			       &regions.reserved_mem_size_cells);  in kaslr_early_init()
441 	 * with any of the reserved regions for the zImage itself, the DTB,  in kaslr_early_init()
442 	 * the initrd and any regions described as reserved in the device tree.  in kaslr_early_init()
448 	count = count_suitable_regions(fdt, &regions, bitmap);  in kaslr_early_init()