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[POWERPC] Add code for removing HPTEs for parts of the linear mapping

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For memory remove, we need to clean up htab mappings for the
section of the memory we are removing.

This implements support for removing htab bolted mappings for pSeries
logical partitions.  Other sub-archs may need to implement similar
functionality for hotplug memory remove to work on them.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Badari Pulavarty
2008-01-29 09:19:24 +11:00
committed by Paul Mackerras
parent f8303dd3db
commit f8c8803bda
4 changed files with 41 additions and 0 deletions
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1
include/asm-powerpc/sparsemem.h
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@@ -15,6 +15,7 @@
#ifdef CONFIG_MEMORY_HOTPLUG
extern void create_section_mapping(unsigned long start, unsigned long end);
extern void remove_section_mapping(unsigned long start, unsigned long end);
#ifdef CONFIG_NUMA
extern int hot_add_scn_to_nid(unsigned long scn_addr);
#else