From f13c34b9066745910bd96f94bd35895af2d4f2b8 Mon Sep 17 00:00:00 2001 From: Greentime Hu Date: Tue, 24 Oct 2017 15:50:45 +0800 Subject: nds32: IRQ handling This patch includes irq related functions and irqchip_init(). Signed-off-by: Vincent Chen Signed-off-by: Greentime Hu Acked-by: Arnd Bergmann --- arch/nds32/include/asm/irqflags.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 arch/nds32/include/asm/irqflags.h (limited to 'arch/nds32/include/asm/irqflags.h') diff --git a/arch/nds32/include/asm/irqflags.h b/arch/nds32/include/asm/irqflags.h new file mode 100644 index 000000000000..2bfd00f8bc48 --- /dev/null +++ b/arch/nds32/include/asm/irqflags.h @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#include +#include + +#define arch_local_irq_disable() \ + GIE_DISABLE(); + +#define arch_local_irq_enable() \ + GIE_ENABLE(); +static inline unsigned long arch_local_irq_save(void) +{ + unsigned long flags; + flags = __nds32__mfsr(NDS32_SR_PSW) & PSW_mskGIE; + GIE_DISABLE(); + return flags; +} + +static inline unsigned long arch_local_save_flags(void) +{ + unsigned long flags; + flags = __nds32__mfsr(NDS32_SR_PSW) & PSW_mskGIE; + return flags; +} + +static inline void arch_local_irq_restore(unsigned long flags) +{ + if(flags) + GIE_ENABLE(); +} + +static inline int arch_irqs_disabled_flags(unsigned long flags) +{ + return !flags; +} -- cgit v1.2.3