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authorPhilipp Hachtmann <phacht@linux.vnet.ibm.com>2014-01-29 18:16:01 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2014-05-20 08:58:39 +0200
commit70210ed950b538ee7eb811dccc402db9df1c9be4 (patch)
tree8f924bff7152d8528be40c1995a8330b6a5ac70d /include/linux/memblock.h
parentf1af9d3af308145478749194346f11efad1134b2 (diff)
downloadop-kernel-dev-70210ed950b538ee7eb811dccc402db9df1c9be4.zip
op-kernel-dev-70210ed950b538ee7eb811dccc402db9df1c9be4.tar.gz
mm/memblock: add physical memory list
Add the physmem list to the memblock structure. This list only exists if HAVE_MEMBLOCK_PHYS_MAP is selected and contains the unmodified list of physically available memory. It differs from the memblock memory list as it always contains all memory ranges even if the memory has been restricted, e.g. by use of the mem= kernel parameter. Signed-off-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/linux/memblock.h')
-rw-r--r--include/linux/memblock.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index f669016..73dc382 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -18,6 +18,7 @@
#include <linux/mm.h>
#define INIT_MEMBLOCK_REGIONS 128
+#define INIT_PHYSMEM_REGIONS 4
/* Definition of memblock flags. */
#define MEMBLOCK_HOTPLUG 0x1 /* hotpluggable region */
@@ -43,6 +44,9 @@ struct memblock {
phys_addr_t current_limit;
struct memblock_type memory;
struct memblock_type reserved;
+#ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
+ struct memblock_type physmem;
+#endif
};
extern struct memblock memblock;
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