|
@@ -252,6 +252,47 @@ static void __meminit vmemmap_create_mapping(unsigned long start,
|
|
|
}
|
|
|
#endif /* CONFIG_PPC_BOOK3E */
|
|
|
|
|
|
+struct vmemmap_backing *vmemmap_list;
|
|
|
+
|
|
|
+static __meminit struct vmemmap_backing * vmemmap_list_alloc(int node)
|
|
|
+{
|
|
|
+ static struct vmemmap_backing *next;
|
|
|
+ static int num_left;
|
|
|
+
|
|
|
+ /* allocate a page when required and hand out chunks */
|
|
|
+ if (!next || !num_left) {
|
|
|
+ next = vmemmap_alloc_block(PAGE_SIZE, node);
|
|
|
+ if (unlikely(!next)) {
|
|
|
+ WARN_ON(1);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+ num_left = PAGE_SIZE / sizeof(struct vmemmap_backing);
|
|
|
+ }
|
|
|
+
|
|
|
+ num_left--;
|
|
|
+
|
|
|
+ return next++;
|
|
|
+}
|
|
|
+
|
|
|
+static __meminit void vmemmap_list_populate(unsigned long phys,
|
|
|
+ unsigned long start,
|
|
|
+ int node)
|
|
|
+{
|
|
|
+ struct vmemmap_backing *vmem_back;
|
|
|
+
|
|
|
+ vmem_back = vmemmap_list_alloc(node);
|
|
|
+ if (unlikely(!vmem_back)) {
|
|
|
+ WARN_ON(1);
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ vmem_back->phys = phys;
|
|
|
+ vmem_back->virt_addr = start;
|
|
|
+ vmem_back->list = vmemmap_list;
|
|
|
+
|
|
|
+ vmemmap_list = vmem_back;
|
|
|
+}
|
|
|
+
|
|
|
int __meminit vmemmap_populate(struct page *start_page,
|
|
|
unsigned long nr_pages, int node)
|
|
|
{
|
|
@@ -276,6 +317,8 @@ int __meminit vmemmap_populate(struct page *start_page,
|
|
|
if (!p)
|
|
|
return -ENOMEM;
|
|
|
|
|
|
+ vmemmap_list_populate(__pa(p), start, node);
|
|
|
+
|
|
|
pr_debug(" * %016lx..%016lx allocated at %p\n",
|
|
|
start, start + page_size, p);
|
|
|
|