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OpenCloudOS-Kernel/include/acpi/acpi_numa.h

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[PATCH] Unify pxm_to_node() and node_to_pxm() Consolidate the various arch-specific implementations of pxm_to_node() and node_to_pxm() into a single generic version. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 17:03:19 +08:00
#ifndef __ACPI_NUMA_H
#define __ACPI_NUMA_H
#ifdef CONFIG_ACPI_NUMA
#include <linux/kernel.h>
/* Proximity bitmap length */
#if MAX_NUMNODES > 256
#define MAX_PXM_DOMAINS MAX_NUMNODES
#else
ACPICA: Lindent Signed-off-by: Len Brown <len.brown@intel.com>
2007-05-10 11:34:35 +08:00
#define MAX_PXM_DOMAINS (256) /* Old pxm spec is defined 8 bit */
[PATCH] Unify pxm_to_node() and node_to_pxm() Consolidate the various arch-specific implementations of pxm_to_node() and node_to_pxm() into a single generic version. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 17:03:19 +08:00
#endif
acpi: fix potential call to a freed memory section. Strip __cpuinit[data] from Node <-> PXM routines and supporting data structures. Also make pxm_to_node_map and node_to_pxm_map local to the numa acpi module. This fixes a bug triggered by the following conditions: - boot on a machine with a SLIT table defined - kernel is configured w/ CONFIG_HOTPLUG_CPU=n - cat /sys/devices/system/node/node*/distance This will cause an oops by calling into a freed memory section. In particular, on x86_64, __node_distance calls node_to_pxm(). Signed-off-by: Aaron Durbin <adurbin@google.com> Cc: Len Brown <lenb@kernel.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-17 13:11:06 +08:00
extern int pxm_to_node(int);
extern int node_to_pxm(int);
ACPI: Section mismatch ... acpi_map_pxm_to_node Last of the "Section mismatch" errors from ia64 builds! acpi_map_pxm_to_node() is defined with attribute __cpuinit, but is called by "normal" kernel functions acpi_getnode() and acpi_map_cpu2node(). Commit f363d16fbb9374c0bd7f2757d412c287169094c9 moved the data structures on which this routine operates from __cpuinitdata to regular memory, so this routine can also move out of init space. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-05-25 04:57:40 +08:00
extern int acpi_map_pxm_to_node(int);
[PATCH] Unify pxm_to_node() and node_to_pxm() Consolidate the various arch-specific implementations of pxm_to_node() and node_to_pxm() into a single generic version. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 17:03:19 +08:00
extern void __cpuinit acpi_unmap_pxm_to_node(int);
#endif /* CONFIG_ACPI_NUMA */
#endif /* __ACP_NUMA_H */