diff options
Diffstat (limited to 'arch/arc/include/uapi/asm/page.h')
| -rw-r--r-- | arch/arc/include/uapi/asm/page.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arc/include/uapi/asm/page.h b/arch/arc/include/uapi/asm/page.h new file mode 100644 index 000000000..2a4ad619a --- /dev/null +++ b/arch/arc/include/uapi/asm/page.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _UAPI__ASM_ARC_PAGE_H +#define _UAPI__ASM_ARC_PAGE_H + +#include <linux/const.h> + +/* PAGE_SHIFT determines the page size */ +#if defined(CONFIG_ARC_PAGE_SIZE_16K) +#define PAGE_SHIFT 14 +#elif defined(CONFIG_ARC_PAGE_SIZE_4K) +#define PAGE_SHIFT 12 +#else +/* + * Default 8k + * done this way (instead of under CONFIG_ARC_PAGE_SIZE_8K) because adhoc + * user code (busybox appletlib.h) expects PAGE_SHIFT to be defined w/o + * using the correct uClibc header and in their build our autoconf.h is + * not available + */ +#define PAGE_SHIFT 13 +#endif + +#define PAGE_SIZE _BITUL(PAGE_SHIFT) /* Default 8K */ +#define PAGE_OFFSET _AC(0x80000000, UL) /* Kernel starts at 2G onwrds */ + +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#endif /* _UAPI__ASM_ARC_PAGE_H */ |