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authorZoltan Menyhart <Zoltan.Menyhart@bull.net>2008-04-11 15:21:35 -0700
committerTony Luck <tony.luck@intel.com>2008-04-11 15:21:35 -0700
commit98075d245a5bc4aeebc2e9f16fa8b089a5c200ac (patch)
tree5d248fa7ec872548e43ed2acb864d701adc65f42 /include/asm-ia64
parentc19b2930df0621500913c005c06978bd8933110b (diff)
downloadop-kernel-dev-98075d245a5bc4aeebc2e9f16fa8b089a5c200ac.zip
op-kernel-dev-98075d245a5bc4aeebc2e9f16fa8b089a5c200ac.tar.gz
[IA64] Fix NUMA configuration issue
There is a NUMA memory configuration issue in 2.6.24: A 2-node machine of ours has got the following memory layout: Node 0: 0 - 2 Gbytes Node 0: 4 - 8 Gbytes Node 1: 8 - 16 Gbytes Node 0: 16 - 18 Gbytes "efi_memmap_init()" merges the three last ranges into one. "register_active_ranges()" is called as follows: efi_memmap_walk(register_active_ranges, NULL); i.e. once for the 4 - 18 Gbytes range. It picks up the node number from the start address, and registers all the memory for the node #0. "register_active_ranges()" should be called as follows to make sure there is no merged address range at its entry: efi_memmap_walk(filter_memory, register_active_ranges); "filter_memory()" is similar to "filter_rsvd_memory()", but the reserved memory ranges are not filtered out. Signed-off-by: Zoltan Menyhart <Zoltan.Menyhart@bull.net> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/meminit.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-ia64/meminit.h b/include/asm-ia64/meminit.h
index f93308f..7245a57 100644
--- a/include/asm-ia64/meminit.h
+++ b/include/asm-ia64/meminit.h
@@ -35,6 +35,7 @@ extern void find_memory (void);
extern void reserve_memory (void);
extern void find_initrd (void);
extern int filter_rsvd_memory (unsigned long start, unsigned long end, void *arg);
+extern int filter_memory (unsigned long start, unsigned long end, void *arg);
extern unsigned long efi_memmap_init(unsigned long *s, unsigned long *e);
extern int find_max_min_low_pfn (unsigned long , unsigned long, void *);
@@ -56,7 +57,7 @@ extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end);
#define IGNORE_PFN0 1 /* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */
-extern int register_active_ranges(u64 start, u64 end, void *arg);
+extern int register_active_ranges(u64 start, u64 len, int nid);
#ifdef CONFIG_VIRTUAL_MEM_MAP
# define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */
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