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authorGreg Kroah-Hartman <gregkh@suse.de>2011-11-27 08:07:25 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-11-27 08:07:25 +0400
commitdd7c7c3f69291baa488b8a50db683d5fbf44166a (patch)
tree925bf294f30dffaa67a983c3859926ff53937e14 /arch/powerpc/mm/mem.c
parent161e773cbd0c3d1b5b8cc00602e1f72de61ed4f7 (diff)
parentcaca6a03d365883564885f2c1da3e88dcf65d139 (diff)
downloadlinux-dd7c7c3f69291baa488b8a50db683d5fbf44166a.tar.xz
Merge 3.2-rc3 into tty-next to handle merge conflict in tty_ldisc.c
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/powerpc/mm/mem.c')
-rw-r--r--arch/powerpc/mm/mem.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 16da595ff402..2dd6bdd31fe1 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -34,6 +34,7 @@
#include <linux/suspend.h>
#include <linux/memblock.h>
#include <linux/hugetlb.h>
+#include <linux/slab.h>
#include <asm/pgalloc.h>
#include <asm/prom.h>
@@ -555,3 +556,32 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
book3e_hugetlb_preload(vma->vm_mm, address, *ptep);
#endif
}
+
+/*
+ * System memory should not be in /proc/iomem but various tools expect it
+ * (eg kdump).
+ */
+static int add_system_ram_resources(void)
+{
+ struct memblock_region *reg;
+
+ for_each_memblock(memory, reg) {
+ struct resource *res;
+ unsigned long base = reg->base;
+ unsigned long size = reg->size;
+
+ res = kzalloc(sizeof(struct resource), GFP_KERNEL);
+ WARN_ON(!res);
+
+ if (res) {
+ res->name = "System RAM";
+ res->start = base;
+ res->end = base + size - 1;
+ res->flags = IORESOURCE_MEM;
+ WARN_ON(request_resource(&iomem_resource, res) < 0);
+ }
+ }
+
+ return 0;
+}
+subsys_initcall(add_system_ram_resources);