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Diffstat (limited to 'arch/x86_64/mm/numa.c')
-rw-r--r--arch/x86_64/mm/numa.c41
1 files changed, 32 insertions, 9 deletions
diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c
index 779132af29a7..cc02573a3271 100644
--- a/arch/x86_64/mm/numa.c
+++ b/arch/x86_64/mm/numa.c
@@ -100,11 +100,30 @@ int early_pfn_to_nid(unsigned long pfn)
}
#endif
+static void * __init
+early_node_mem(int nodeid, unsigned long start, unsigned long end,
+ unsigned long size)
+{
+ unsigned long mem = find_e820_area(start, end, size);
+ void *ptr;
+ if (mem != -1L)
+ return __va(mem);
+ ptr = __alloc_bootmem_nopanic(size,
+ SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS));
+ if (ptr == 0) {
+ printk(KERN_ERR "Cannot find %lu bytes in node %d\n",
+ size, nodeid);
+ return NULL;
+ }
+ return ptr;
+}
+
/* Initialize bootmem allocator for a node */
void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long end)
{
unsigned long start_pfn, end_pfn, bootmap_pages, bootmap_size, bootmap_start;
unsigned long nodedata_phys;
+ void *bootmap;
const int pgdat_size = round_up(sizeof(pg_data_t), PAGE_SIZE);
start = round_up(start, ZONE_ALIGN);
@@ -114,13 +133,11 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long en
start_pfn = start >> PAGE_SHIFT;
end_pfn = end >> PAGE_SHIFT;
- nodedata_phys = find_e820_area(start, end, pgdat_size);
- if (nodedata_phys == -1L)
- panic("Cannot find memory pgdat in node %d\n", nodeid);
-
- Dprintk("nodedata_phys %lx\n", nodedata_phys);
+ node_data[nodeid] = early_node_mem(nodeid, start, end, pgdat_size);
+ if (node_data[nodeid] == NULL)
+ return;
+ nodedata_phys = __pa(node_data[nodeid]);
- node_data[nodeid] = phys_to_virt(nodedata_phys);
memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t));
NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid];
NODE_DATA(nodeid)->node_start_pfn = start_pfn;
@@ -129,9 +146,15 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long en
/* Find a place for the bootmem map */
bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE);
- bootmap_start = find_e820_area(bootmap_start, end, bootmap_pages<<PAGE_SHIFT);
- if (bootmap_start == -1L)
- panic("Not enough continuous space for bootmap on node %d", nodeid);
+ bootmap = early_node_mem(nodeid, bootmap_start, end,
+ bootmap_pages<<PAGE_SHIFT);
+ if (bootmap == NULL) {
+ if (nodedata_phys < start || nodedata_phys >= end)
+ free_bootmem((unsigned long)node_data[nodeid],pgdat_size);
+ node_data[nodeid] = NULL;
+ return;
+ }
+ bootmap_start = __pa(bootmap);
Dprintk("bootmap start %lu pages %lu\n", bootmap_start, bootmap_pages);
bootmap_size = init_bootmem_node(NODE_DATA(nodeid),