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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:20:03 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:20:03 -0400
commit96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch)
treed947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/mmzone_64.h
parent27bd0c955648646abf2a353a8371d28c37bcd982 (diff)
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/mmzone_64.h')
-rw-r--r--include/asm-x86/mmzone_64.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/asm-x86/mmzone_64.h b/include/asm-x86/mmzone_64.h
new file mode 100644
index 000000000000..19a89377b123
--- /dev/null
+++ b/include/asm-x86/mmzone_64.h
@@ -0,0 +1,56 @@
1/* K8 NUMA support */
2/* Copyright 2002,2003 by Andi Kleen, SuSE Labs */
3/* 2.5 Version loosely based on the NUMAQ Code by Pat Gaughen. */
4#ifndef _ASM_X86_64_MMZONE_H
5#define _ASM_X86_64_MMZONE_H 1
6
7
8#ifdef CONFIG_NUMA
9
10#define VIRTUAL_BUG_ON(x)
11
12#include <asm/smp.h>
13
14/* Simple perfect hash to map physical addresses to node numbers */
15struct memnode {
16 int shift;
17 unsigned int mapsize;
18 u8 *map;
19 u8 embedded_map[64-16];
20} ____cacheline_aligned; /* total size = 64 bytes */
21extern struct memnode memnode;
22#define memnode_shift memnode.shift
23#define memnodemap memnode.map
24#define memnodemapsize memnode.mapsize
25
26extern struct pglist_data *node_data[];
27
28static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
29{
30 unsigned nid;
31 VIRTUAL_BUG_ON(!memnodemap);
32 VIRTUAL_BUG_ON((addr >> memnode_shift) >= memnodemapsize);
33 nid = memnodemap[addr >> memnode_shift];
34 VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]);
35 return nid;
36}
37
38#define NODE_DATA(nid) (node_data[nid])
39
40#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
41#define node_end_pfn(nid) (NODE_DATA(nid)->node_start_pfn + \
42 NODE_DATA(nid)->node_spanned_pages)
43
44#ifdef CONFIG_DISCONTIGMEM
45#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
46
47extern int pfn_valid(unsigned long pfn);
48#endif
49
50#ifdef CONFIG_NUMA_EMU
51#define FAKE_NODE_MIN_SIZE (64*1024*1024)
52#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1uL))
53#endif
54
55#endif
56#endif