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Commit 82dd26a9 authored by Mike Kravetz's avatar Mike Kravetz Committed by Paul Mackerras
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[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: default avatarMike Kravetz <kravetz@us.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent dd7ccbd3

include/asm-ppc64/mmzone.h

+8 −0
Original line number Diff line number Diff line
@@ -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