1 files changed, 5 insertions, 0 deletions

diff --git a/include/asm-alpha/processor.h b/include/asm-alpha/processor.h
index 425b7b6d28cb..94afe5859301 100644
--- a/include/asm-alpha/processor.h
+++ b/include/asm-alpha/processor.h
@@ -20,6 +20,11 @@
  */
 #define TASK_SIZE (0x40000000000UL)
 
+#define STACK_TOP \
+  (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
+
+#define STACK_TOP_MAX   0x00120000000UL
+
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
  */