u-boot/arch/arm/thumb1/include/asm/proc-armv/system.h
Tom Rini f739fcd831 SPDX: Convert a few files that were missed before
As part of the main conversion a few files were missed.  These files had
additional whitespace after the '*' and before the SPDX tag and my
previous regex was too strict.  This time I did a grep for all SPDX tags
and then filtered out anything that matched the correct styles.

Fixes: 83d290c56f ("SPDX: Convert all of our single license tags to Linux Kernel style")
Reported-by: Heinrich Schuchardt <xypron.debian@gmx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-10 20:38:35 -04:00

68 lines
1.7 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Thumb-1 drop-in for the linux/include/asm-arm/proc-armv/system.h
*
* (C) Copyright 2015
* Albert ARIBAUD <albert.u.boot@aribaud.net>
*
* The original file does not build in Thumb mode. However, in U-Boot
* we don't use interrupt context, so we can redefine these as empty
* memory barriers, which makes Thumb-1 compiler happy.
*/
/*
* Use the same macro name as linux/include/asm-arm/proc-armv/system.h
* here, so that if the original ever gets included after us, it won't
* try to re-redefine anything.
*/
#ifndef __ASM_PROC_SYSTEM_H
#define __ASM_PROC_SYSTEM_H
/*
* Redefine all original macros with static inline functions containing
* a simple memory barrier, so that they produce the same instruction
* ordering constraints as their original counterparts.
* We use static inline functions rather than macros so that we can tell
* the compiler to not complain about unused arguments.
*/
static inline void local_irq_save(
unsigned long flags __attribute__((unused)))
{
__asm__ __volatile__ ("" : : : "memory");
}
static inline void local_irq_enable(void)
{
__asm__ __volatile__ ("" : : : "memory");
}
static inline void local_irq_disable(void)
{
__asm__ __volatile__ ("" : : : "memory");
}
static inline void __stf(void)
{
__asm__ __volatile__ ("" : : : "memory");
}
static inline void __clf(void)
{
__asm__ __volatile__ ("" : : : "memory");
}
static inline void local_save_flags(
unsigned long flags __attribute__((unused)))
{
__asm__ __volatile__ ("" : : : "memory");
}
static inline void local_irq_restore(
unsigned long flags __attribute__((unused)))
{
__asm__ __volatile__ ("" : : : "memory");
}
#endif /* __ASM_PROC_SYSTEM_H */