linux/arch/arm64/include/asm/page-def.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Based on arch/arm/include/asm/page.h
 *
 * Copyright (C) 1995-2003 Russell King
 * Copyright (C) 2017 ARM Ltd.
 */
#ifndef __ASM_PAGE_DEF_H
#define __ASM_PAGE_DEF_H

#include <linux/const.h>

/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT		CONFIG_ARM64_PAGE_SHIFT
#define PAGE_SIZE		(_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK		(~(PAGE_SIZE-1))

#endif /* __ASM_PAGE_DEF_H */
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 Based on 1 normalized pattern(s): 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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 503 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2019-06-03 13:44:50 +08:00			`/* SPDX-License-Identifier: GPL-2.0-only */`
arm64: factor out PAGE_* and CONT_* definitions Some headers rely on PAGE_* definitions from <asm/page.h>, but cannot include this due to potential circular includes. For example, a number of definitions in <asm/memory.h> rely on PAGE_SHIFT, and <asm/page.h> includes <asm/memory.h>. This requires users of these definitions to include both headers, which is fragile and error-prone. This patch ameliorates matters by moving the basic definitions out to a new header, <asm/page-def.h>. Both <asm/page.h> and <asm/memory.h> are updated to include this, avoiding this fragility, and avoiding the possibility of circular include dependencies. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Tested-by: Laura Abbott <labbott@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> 2017-07-15 02:43:56 +08:00			`/*`
			`* Based on arch/arm/include/asm/page.h`
			`*`
			`* Copyright (C) 1995-2003 Russell King`
			`* Copyright (C) 2017 ARM Ltd.`
			`*/`
			`#ifndef __ASM_PAGE_DEF_H`
			`#define __ASM_PAGE_DEF_H`

			`#include <linux/const.h>`

			`/* PAGE_SHIFT determines the page size */`
			`#define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT`
			`#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)`
			`#define PAGE_MASK (~(PAGE_SIZE-1))`

			`#endif /* __ASM_PAGE_DEF_H */`