auto import from //depot/cupcake/@135843
diff --git a/libc/kernel/arch-arm/asm/page.h b/libc/kernel/arch-arm/asm/page.h
new file mode 100644
index 0000000..f980343
--- /dev/null
+++ b/libc/kernel/arch-arm/asm/page.h
@@ -0,0 +1,19 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ *** This header was automatically generated from a Linux kernel header
+ *** of the same name, to make information necessary for userspace to
+ *** call into the kernel available to libc. It contains only constants,
+ *** structures, and macros generated from the original header, and thus,
+ *** contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _ASMARM_PAGE_H
+#define _ASMARM_PAGE_H
+
+#define PAGE_SHIFT 12
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#endif