arm64: move {PAGE,CONT}_SHIFT into Kconfig
In some cases (e.g. the awk for CONFIG_RANDOMIZE_TEXT_OFFSET) we would
like to make use of PAGE_SHIFT outside of code that can include the
usual header files.
Add a new CONFIG_ARM64_PAGE_SHIFT for this, likewise with
ARM64_CONT_SHIFT for consistency.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from commit 030c4d24447cbf2bd612baea5695952e5f62c042)
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Alex Shi <alex.shi@linaro.org>
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 2693917..f1a57b7 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -107,6 +107,18 @@
config MMU
def_bool y
+config ARM64_PAGE_SHIFT
+ int
+ default 16 if ARM64_64K_PAGES
+ default 14 if ARM64_16K_PAGES
+ default 12
+
+config ARM64_CONT_SHIFT
+ int
+ default 5 if ARM64_64K_PAGES
+ default 7 if ARM64_16K_PAGES
+ default 4
+
config NO_IOPORT_MAP
def_bool y if !PCI
diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h
index 9b2f5a9..344915b 100644
--- a/arch/arm64/include/asm/page.h
+++ b/arch/arm64/include/asm/page.h
@@ -21,16 +21,8 @@
/* PAGE_SHIFT determines the page size */
/* CONT_SHIFT determines the number of pages which can be tracked together */
-#ifdef CONFIG_ARM64_64K_PAGES
-#define PAGE_SHIFT 16
-#define CONT_SHIFT 5
-#elif defined(CONFIG_ARM64_16K_PAGES)
-#define PAGE_SHIFT 14
-#define CONT_SHIFT 7
-#else
-#define PAGE_SHIFT 12
-#define CONT_SHIFT 4
-#endif
+#define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT
+#define CONT_SHIFT CONFIG_ARM64_CONT_SHIFT
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))