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-rw-r--r--arch/arm/mm/init.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index e34ea8adc1f9..6ec1226fc62d 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -22,6 +22,7 @@
#include <linux/memblock.h>
#include <asm/mach-types.h>
+#include <asm/memblock.h>
#include <asm/prom.h>
#include <asm/sections.h>
#include <asm/setup.h>
@@ -307,6 +308,21 @@ static void arm_memory_present(void)
}
#endif
+static bool arm_memblock_steal_permitted = true;
+
+phys_addr_t arm_memblock_steal(phys_addr_t size, phys_addr_t align)
+{
+ phys_addr_t phys;
+
+ BUG_ON(!arm_memblock_steal_permitted);
+
+ phys = memblock_alloc(size, align);
+ memblock_free(phys, size);
+ memblock_remove(phys, size);
+
+ return phys;
+}
+
void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
{
int i;
@@ -349,6 +365,7 @@ void __init arm_memblock_init(struct meminfo *mi, struct machine_desc *mdesc)
if (mdesc->reserve)
mdesc->reserve();
+ arm_memblock_steal_permitted = false;
memblock_allow_resize();
memblock_dump_all();
}