Merge commit 'v3.17' into next

1 files changed, 16 insertions, 7 deletions

diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h
index 46bf66628b6a..22b16232bd60 100644
--- a/arch/arm64/include/asm/page.h
+++ b/arch/arm64/include/asm/page.h
@@ -28,17 +28,26 @@
 #define PAGE_SIZE		(_AC(1,UL) << PAGE_SHIFT)
 #define PAGE_MASK		(~(PAGE_SIZE-1))
 
-/* We do define AT_SYSINFO_EHDR but don't use the gate mechanism */
-#define __HAVE_ARCH_GATE_AREA		1
-
-#ifndef __ASSEMBLY__
-
+/*
+ * The idmap and swapper page tables need some space reserved in the kernel
+ * image. Both require pgd, pud (4 levels only) and pmd tables to (section)
+ * map the kernel. With the 64K page configuration, swapper and idmap need to
+ * map to pte level. The swapper also maps the FDT (see __create_page_tables
+ * for more information).
+ */
 #ifdef CONFIG_ARM64_64K_PAGES
-#include <asm/pgtable-2level-types.h>
+#define SWAPPER_PGTABLE_LEVELS	(CONFIG_ARM64_PGTABLE_LEVELS)
 #else
-#include <asm/pgtable-3level-types.h>
+#define SWAPPER_PGTABLE_LEVELS	(CONFIG_ARM64_PGTABLE_LEVELS - 1)
 #endif
 
+#define SWAPPER_DIR_SIZE	(SWAPPER_PGTABLE_LEVELS * PAGE_SIZE)
+#define IDMAP_DIR_SIZE		(SWAPPER_DIR_SIZE)
+
+#ifndef __ASSEMBLY__
+
+#include <asm/pgtable-types.h>
+
 extern void __cpu_clear_user_page(void *p, unsigned long user);
 extern void __cpu_copy_user_page(void *to, const void *from,
 				 unsigned long user);