merge from open-source master

Change-Id: If02d33af51017dbd85e91c79ac2e848eda6cf253

1 files changed, 37 insertions, 0 deletions

diff --git a/libc/kernel/arch-sh/asm/fixmap.h b/libc/kernel/arch-sh/asm/fixmap.h
new file mode 100644
index 0000000..3f7b948
--- /dev/null
+++ b/libc/kernel/arch-sh/asm/fixmap.h
@@ -0,0 +1,37 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   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 _ASM_FIXMAP_H
+#define _ASM_FIXMAP_H
+
+#include <linux/kernel.h>
+#include <asm/page.h>
+
+enum fixed_addresses {
+#define FIX_N_COLOURS 16
+ FIX_CMAP_BEGIN,
+ FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
+ FIX_UNCACHED,
+ __end_of_fixed_addresses
+};
+
+#define set_fixmap(idx, phys)   __set_fixmap(idx, phys, PAGE_KERNEL)
+
+#define set_fixmap_nocache(idx, phys)   __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
+
+#define FIXADDR_TOP (P4SEG - PAGE_SIZE)
+#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
+#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
+
+#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
+#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
+
+#endif