+ /*
+ * adjust limit to avoid crossing low/high memory boundary for
+ * automatically allocated regions
+ */
+ if (((limit == 0 || limit > memblock_end) &&
+ (memblock_end - size < highmem_start &&
+ memblock_end > highmem_start)) ||
+ (!fixed && limit > highmem_start && limit - size < highmem_start)) {
+ limit = highmem_start;
+ }
+
+ if (fixed && base < highmem_start && base+size > highmem_start) {
+ ret = -EINVAL;
+ pr_err("Region at %08lx defined on low/high memory boundary (%08lx)\n",
+ (unsigned long)base, (unsigned long)highmem_start);
+ goto err;
+ }
+