mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2011 Andes Technology Corporation
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* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
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*/
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#ifndef __ASM_NDS_SYSTEM_H
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#define __ASM_NDS_SYSTEM_H
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/*
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* Interrupt configuring macros.
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*/
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extern int irq_flags;
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#define local_irq_enable() \
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__asm__ __volatile__ ( \
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"mfsr %0, $psw\n\t" \
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"andi %0, %0, 0x1\n\t" \
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"setgie.e\n\t" \
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: \
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: "r" (irq_flags) \
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)
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#define local_irq_disable() \
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do { \
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int __tmp_dummy; \
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__asm__ __volatile__ ( \
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"mfsr %0, $psw\n\t" \
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"andi %0, %0, 0x1\n\t" \
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"setgie.d\n\t" \
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"dsb\n\t" \
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: "=r" (__tmp_dummy) \
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); \
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} while (0)
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#define local_irq_save(x) \
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__asm__ __volatile__ ( \
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"mfsr %0, $psw\n\t" \
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"andi %0, %0, 0x1\n\t" \
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"setgie.d\n\t" \
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"dsb\n\t" \
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: "=&r" (x) \
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)
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#define local_save_flags(x) \
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__asm__ __volatile__ ( \
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"mfsr %0, $psw\n\t" \
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"andi %0, %0, 0x1\n\t" \
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"setgie.e\n\t" \
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"setgie.d\n\t" \
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: "=r" (x) \
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)
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#define irqs_enabled_from_flags(x) ((x) != 0x1f)
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#define local_irq_restore(x) \
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do { \
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if (irqs_enabled_from_flags(x)) \
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local_irq_enable(); \
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} while (0)
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/*
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* Force strict CPU ordering.
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*/
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#define nop() asm volatile ("nop;\n\t" : : )
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#define mb() asm volatile ("" : : : "memory")
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#define rmb() asm volatile ("" : : : "memory")
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#define wmb() asm volatile ("" : : : "memory")
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#endif /* __ASM_NDS_SYSTEM_H */
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