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5933f6d220
Update license to use SPDX-License-Identifier instead of verbose license text. Link: http://lkml.kernel.org/r/8736rccswn.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Cc: Rich Felker <dalias@libc.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
55 lines
1008 B
C
55 lines
1008 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* SHcompact irqflags support
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*
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* Copyright (C) 2006 - 2009 Paul Mundt
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*/
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#include <linux/irqflags.h>
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#include <linux/module.h>
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void notrace arch_local_irq_restore(unsigned long flags)
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{
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unsigned long __dummy0, __dummy1;
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if (flags == ARCH_IRQ_DISABLED) {
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__asm__ __volatile__ (
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"stc sr, %0\n\t"
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"or #0xf0, %0\n\t"
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"ldc %0, sr\n\t"
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: "=&z" (__dummy0)
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: /* no inputs */
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: "memory"
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);
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} else {
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__asm__ __volatile__ (
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"stc sr, %0\n\t"
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"and %1, %0\n\t"
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#ifdef CONFIG_CPU_HAS_SR_RB
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"stc r6_bank, %1\n\t"
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"or %1, %0\n\t"
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#endif
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"ldc %0, sr\n\t"
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: "=&r" (__dummy0), "=r" (__dummy1)
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: "1" (~ARCH_IRQ_DISABLED)
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: "memory"
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);
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}
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}
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EXPORT_SYMBOL(arch_local_irq_restore);
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unsigned long notrace arch_local_save_flags(void)
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{
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unsigned long flags;
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__asm__ __volatile__ (
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"stc sr, %0\n\t"
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"and #0xf0, %0\n\t"
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: "=&z" (flags)
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: /* no inputs */
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: "memory"
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);
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return flags;
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}
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EXPORT_SYMBOL(arch_local_save_flags);
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