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authorYasunori Goto <y-goto@jp.fujitsu.com>2006-06-27 02:53:31 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-27 17:32:36 -0700
commit1e3590e2e4a38e8390fdac5bda23330bf2801838 (patch)
tree528591e9db601af913756b11d37e451202584cd2 /include
parentbc02af93dd2bbddce1b55e0a493f833a1b7cf140 (diff)
[PATCH] pgdat allocation for new node add (get node id by acpi)
This is to find node id from acpi's handle of memory_device in DSDT. _PXM for the new node can be found by acpi_get_pxm() by using new memory's handle. So, node id can be found by pxm_to_nid_map[]. This patch becomes simpler than v2 of node hot-add patch. Because old add_memory() function doesn't have node id parameter. So, kernel must find its handle by physical address via DSDT again. But, v3 just give node id to add_memory() now. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> 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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/acpi.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 90d6df1551e..88b5dfd8ee1 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -528,12 +528,18 @@ static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; }
#ifdef CONFIG_ACPI_NUMA
int acpi_get_pxm(acpi_handle handle);
+int acpi_get_node(acpi_handle *handle);
#else
static inline int acpi_get_pxm(acpi_handle handle)
{
return 0;
}
+static inline int acpi_get_node(acpi_handle *handle)
+{
+ return 0;
+}
#endif
+extern int acpi_paddr_to_node(u64 start_addr, u64 size);
extern int pnpacpi_disabled;