#ifndef _ASM_X86_64_MMZONE_H
#define _ASM_X86_64_MMZONE_H 1
-#include <linux/config.h>
#ifdef CONFIG_NUMA
#include <asm/smp.h>
-/* Should really switch to dynamic allocation at some point */
-#define NODEMAPSIZE 0x4fff
-
/* Simple perfect hash to map physical addresses to node numbers */
struct memnode {
int shift;
- u8 map[NODEMAPSIZE];
-} ____cacheline_aligned;
+ unsigned int mapsize;
+ u8 *map;
+ u8 embedded_map[64-16];
+} ____cacheline_aligned; /* total size = 64 bytes */
extern struct memnode memnode;
#define memnode_shift memnode.shift
#define memnodemap memnode.map
+#define memnodemapsize memnode.mapsize
extern struct pglist_data *node_data[];
static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
{
unsigned nid;
- VIRTUAL_BUG_ON((addr >> memnode_shift) >= NODEMAPSIZE);
+ VIRTUAL_BUG_ON(!memnodemap);
+ VIRTUAL_BUG_ON((addr >> memnode_shift) >= memnodemapsize);
nid = memnodemap[addr >> memnode_shift];
VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]);
return nid;
#ifdef CONFIG_DISCONTIGMEM
#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
-#define kvaddr_to_nid(kaddr) phys_to_nid(__pa(kaddr))
extern int pfn_valid(unsigned long pfn);
#endif
+#ifdef CONFIG_NUMA_EMU
+#define FAKE_NODE_MIN_SIZE (64*1024*1024)
+#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1uL))
+#endif
+
#endif
#endif