diff options
| author |   Mike Kravetz <kravetz@us.ibm.com> | 2005-11-04 15:20:24 -0800 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2005-11-08 15:17:22 +1100 |
| commit | 82dd26a971848efafc6c8f12803ae012d268d2eb (patch) | |
| tree | 74a72d94a726e876dc9db54155d158ed8e4f5b21 /include/asm-ppc64 | |
| parent | [PATCH] Memory Add Fixes for ppc64 (diff) | |
| download | linux-dev-82dd26a971848efafc6c8f12803ae012d268d2eb.tar.xz linux-dev-82dd26a971848efafc6c8f12803ae012d268d2eb.zip | |
[PATCH] Memory Add Fixes for ppc64
This is a temporary kludge that supports adding all new memory to
node 0. I will provide a more complete solution similar to that
used for dynamically added CPUs in a few days.
Signed-off-by: Mike Kravetz <kravetz@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-ppc64')
| -rw-r--r-- | include/asm-ppc64/mmzone.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-ppc64/mmzone.h b/include/asm-ppc64/mmzone.h index 80a708e7093a..15e777ce0f4a 100644 --- a/include/asm-ppc64/mmzone.h +++ b/include/asm-ppc64/mmzone.h @@ -33,6 +33,9 @@ extern int numa_cpu_lookup_table[]; extern char *numa_memory_lookup_table; extern cpumask_t numa_cpumask_lookup_table[]; extern int nr_cpus_in_node[]; +#ifdef CONFIG_MEMORY_HOTPLUG +extern unsigned long max_pfn; +#endif /* 16MB regions */ #define MEMORY_INCREMENT_SHIFT 24 @@ -45,6 +48,11 @@ static inline int pa_to_nid(unsigned long pa) { int nid; +#ifdef CONFIG_MEMORY_HOTPLUG + /* kludge hot added sections default to node 0 */ + if (pa >= (max_pfn << PAGE_SHIFT)) + return 0; +#endif nid = numa_memory_lookup_table[pa >> MEMORY_INCREMENT_SHIFT]; #ifdef DEBUG_NUMA |