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authorBadari Pulavarty <pbadari@us.ibm.com>2008-02-05 03:10:18 -0500
committerPaul Mackerras <paulus@samba.org>2008-02-08 03:52:48 -0500
commita99824f327c748b2753f4fa570eb1fefcd6a9c4d (patch)
tree47c6df061ade21ce7ebae43b31a39e882c90cf2b /kernel/posix-cpu-timers.c
parent1482471d19e77d794012dbacaa65c44ceaae37bb (diff)
[POWERPC] Add arch-specific walk_memory_remove() for 64-bit powerpc
walk_memory_resource() verifies if there are holes in a given memory range, by checking against /proc/iomem. On x86/ia64 system memory is represented in /proc/iomem. On powerpc, we don't show system memory as IO resource in /proc/iomem - instead it's maintained in /proc/device-tree. This provides a way for an architecture to provide its own walk_memory_resource() function. On powerpc, the memory region is small (16MB), contiguous and non-overlapping. So extra checking against the device-tree is not needed. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'kernel/posix-cpu-timers.c')
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