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authorTony Luck <tony.luck@intel.com>2008-08-01 13:13:32 -0400
committerTony Luck <tony.luck@intel.com>2008-08-01 13:21:21 -0400
commit7f30491ccd28627742e37899453ae20e3da8e18f (patch)
tree7291c0a26ed3a31acf9542857af3981d278f5de8 /arch/ia64/include/asm/numa.h
parent94ad374a0751f40d25e22e036c37f7263569d24c (diff)
[IA64] Move include/asm-ia64 to arch/ia64/include/asm
After moving the the include files there were a few clean-ups: 1) Some files used #include <asm-ia64/xyz.h>, changed to <asm/xyz.h> 2) Some comments alerted maintainers to look at various header files to make matching updates if certain code were to be changed. Updated these comments to use the new include paths. 3) Some header files mentioned their own names in initial comments. Just deleted these self references. Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/include/asm/numa.h')
-rw-r--r--arch/ia64/include/asm/numa.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/numa.h b/arch/ia64/include/asm/numa.h
new file mode 100644
index 000000000000..3499ff57bf42
--- /dev/null
+++ b/arch/ia64/include/asm/numa.h
@@ -0,0 +1,82 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * This file contains NUMA specific prototypes and definitions.
7 *
8 * 2002/08/05 Erich Focht <efocht@ess.nec.de>
9 *
10 */
11#ifndef _ASM_IA64_NUMA_H
12#define _ASM_IA64_NUMA_H
13
14
15#ifdef CONFIG_NUMA
16
17#include <linux/cache.h>
18#include <linux/cpumask.h>
19#include <linux/numa.h>
20#include <linux/smp.h>
21#include <linux/threads.h>
22
23#include <asm/mmzone.h>
24
25#define NUMA_NO_NODE -1
26
27extern u16 cpu_to_node_map[NR_CPUS] __cacheline_aligned;
28extern cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;
29extern pg_data_t *pgdat_list[MAX_NUMNODES];
30
31/* Stuff below this line could be architecture independent */
32
33extern int num_node_memblks; /* total number of memory chunks */
34
35/*
36 * List of node memory chunks. Filled when parsing SRAT table to
37 * obtain information about memory nodes.
38*/
39
40struct node_memblk_s {
41 unsigned long start_paddr;
42 unsigned long size;
43 int nid; /* which logical node contains this chunk? */
44 int bank; /* which mem bank on this node */
45};
46
47struct node_cpuid_s {
48 u16 phys_id; /* id << 8 | eid */
49 int nid; /* logical node containing this CPU */
50};
51
52extern struct node_memblk_s node_memblk[NR_NODE_MEMBLKS];
53extern struct node_cpuid_s node_cpuid[NR_CPUS];
54
55/*
56 * ACPI 2.0 SLIT (System Locality Information Table)
57 * http://devresource.hp.com/devresource/Docs/TechPapers/IA64/slit.pdf
58 *
59 * This is a matrix with "distances" between nodes, they should be
60 * proportional to the memory access latency ratios.
61 */
62
63extern u8 numa_slit[MAX_NUMNODES * MAX_NUMNODES];
64#define node_distance(from,to) (numa_slit[(from) * num_online_nodes() + (to)])
65
66extern int paddr_to_nid(unsigned long paddr);
67
68#define local_nodeid (cpu_to_node_map[smp_processor_id()])
69
70extern void map_cpu_to_node(int cpu, int nid);
71extern void unmap_cpu_from_node(int cpu, int nid);
72
73
74#else /* !CONFIG_NUMA */
75#define map_cpu_to_node(cpu, nid) do{}while(0)
76#define unmap_cpu_from_node(cpu, nid) do{}while(0)
77
78#define paddr_to_nid(addr) 0
79
80#endif /* CONFIG_NUMA */
81
82#endif /* _ASM_IA64_NUMA_H */