From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/nios2/include/asm/irqflags.h | 59 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 arch/nios2/include/asm/irqflags.h (limited to 'arch/nios2/include/asm/irqflags.h') diff --git a/arch/nios2/include/asm/irqflags.h b/arch/nios2/include/asm/irqflags.h new file mode 100644 index 000000000..25acf2786 --- /dev/null +++ b/arch/nios2/include/asm/irqflags.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2010 Thomas Chou + */ +#ifndef _ASM_IRQFLAGS_H +#define _ASM_IRQFLAGS_H + +#include + +static inline unsigned long arch_local_save_flags(void) +{ + return RDCTL(CTL_FSTATUS); +} + +/* + * This will restore ALL status register flags, not only the interrupt + * mask flag. + */ +static inline void arch_local_irq_restore(unsigned long flags) +{ + WRCTL(CTL_FSTATUS, flags); +} + +static inline void arch_local_irq_disable(void) +{ + unsigned long flags; + + flags = arch_local_save_flags(); + arch_local_irq_restore(flags & ~STATUS_PIE); +} + +static inline void arch_local_irq_enable(void) +{ + unsigned long flags; + + flags = arch_local_save_flags(); + arch_local_irq_restore(flags | STATUS_PIE); +} + +static inline int arch_irqs_disabled_flags(unsigned long flags) +{ + return (flags & STATUS_PIE) == 0; +} + +static inline int arch_irqs_disabled(void) +{ + return arch_irqs_disabled_flags(arch_local_save_flags()); +} + +static inline unsigned long arch_local_irq_save(void) +{ + unsigned long flags; + + flags = arch_local_save_flags(); + arch_local_irq_restore(flags & ~STATUS_PIE); + return flags; +} + +#endif /* _ASM_IRQFLAGS_H */ -- cgit v1.2.3