linux/arch/arm64/include/asm/shmparam.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2012 ARM Ltd.
 */
#ifndef __ASM_SHMPARAM_H
#define __ASM_SHMPARAM_H

/*
 * For IPC syscalls from compat tasks, we need to use the legacy 16k
 * alignment value. Since we don't have aliasing D-caches, the rest of
 * the time we can safely use PAGE_SIZE.
 */
#define COMPAT_SHMLBA	(4 * PAGE_SIZE)

#include <asm-generic/shmparam.h>

#endif /* __ASM_SHMPARAM_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: ELF definitions This patch adds definitions for the ELF format, including personality personality setting and EXEC_PAGESIZE. The are only two hwcap definitions for 64-bit applications - HWCAP_FP and HWCAP_ASIMD. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> 2012-03-05 19:49:30 +08:00			`/*`
			`* Copyright (C) 2012 ARM Ltd.`
			`*/`
			`#ifndef __ASM_SHMPARAM_H`
			`#define __ASM_SHMPARAM_H`

			`/*`
			`* For IPC syscalls from compat tasks, we need to use the legacy 16k`
			`* alignment value. Since we don't have aliasing D-caches, the rest of`
			`* the time we can safely use PAGE_SIZE.`
			`*/`
arm64: fix COMPAT_SHMLBA definition for large pages ARM glibc uses (4 * __getpagesize()) for SHMLBA, which is correct for 4KB pages and works fine for 64KB pages, but the kernel uses a hardcoded 16KB that is too small for 64KB page based kernels. This changes the definition to what user space sees when using 64KB pages. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Signed-off-by: Will Deacon <will.deacon@arm.com> 2015-12-02 22:00:10 +08:00			`#define COMPAT_SHMLBA (4 * PAGE_SIZE)`
arm64: ELF definitions This patch adds definitions for the ELF format, including personality personality setting and EXEC_PAGESIZE. The are only two hwcap definitions for 64-bit applications - HWCAP_FP and HWCAP_ASIMD. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> 2012-03-05 19:49:30 +08:00
			`#include <asm-generic/shmparam.h>`

			`#endif /* __ASM_SHMPARAM_H */`