From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/sh/kernel/irq_32.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 arch/sh/kernel/irq_32.c (limited to 'arch/sh/kernel/irq_32.c') diff --git a/arch/sh/kernel/irq_32.c b/arch/sh/kernel/irq_32.c new file mode 100644 index 0000000000..e09cdc4ada --- /dev/null +++ b/arch/sh/kernel/irq_32.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * SHcompact irqflags support + * + * Copyright (C) 2006 - 2009 Paul Mundt + */ +#include +#include + +void notrace arch_local_irq_restore(unsigned long flags) +{ + unsigned long __dummy0, __dummy1; + + if (flags == ARCH_IRQ_DISABLED) { + __asm__ __volatile__ ( + "stc sr, %0\n\t" + "or #0xf0, %0\n\t" + "ldc %0, sr\n\t" + : "=&z" (__dummy0) + : /* no inputs */ + : "memory" + ); + } else { + __asm__ __volatile__ ( + "stc sr, %0\n\t" + "and %1, %0\n\t" +#ifdef CONFIG_CPU_HAS_SR_RB + "stc r6_bank, %1\n\t" + "or %1, %0\n\t" +#endif + "ldc %0, sr\n\t" + : "=&r" (__dummy0), "=r" (__dummy1) + : "1" (~ARCH_IRQ_DISABLED) + : "memory" + ); + } +} +EXPORT_SYMBOL(arch_local_irq_restore); + +unsigned long notrace arch_local_save_flags(void) +{ + unsigned long flags; + + __asm__ __volatile__ ( + "stc sr, %0\n\t" + "and #0xf0, %0\n\t" + : "=&z" (flags) + : /* no inputs */ + : "memory" + ); + + return flags; +} +EXPORT_SYMBOL(arch_local_save_flags); -- cgit v1.2.3