[PATCH v4 11/36] nds32: IRQ handling
From: Greentime Hu <hidden>
Date: 2017-12-18 07:26:05
Also in:
linux-arch, linux-devicetree, linux-serial, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Greentime Hu <redacted> This patch includes irq related functions and irqchip_init(). Signed-off-by: Vincent Chen <redacted> Signed-off-by: Greentime Hu <redacted> --- arch/nds32/include/asm/irqflags.h | 36 ++++++++++++++++++++++++++++++++++++ arch/nds32/kernel/irq.c | 9 +++++++++ 2 files changed, 45 insertions(+) create mode 100644 arch/nds32/include/asm/irqflags.h create mode 100644 arch/nds32/kernel/irq.c
diff --git a/arch/nds32/include/asm/irqflags.h b/arch/nds32/include/asm/irqflags.h
new file mode 100644
index 0000000..2bfd00f
--- /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 <asm/nds32.h> +#include <nds32_intrinsic.h> + +#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; +}
diff --git a/arch/nds32/kernel/irq.c b/arch/nds32/kernel/irq.c
new file mode 100644
index 0000000..6ff5a67
--- /dev/null
+++ b/arch/nds32/kernel/irq.c@@ -0,0 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#include <linux/irqchip.h> + +void __init init_IRQ(void) +{ + irqchip_init(); +}
--
1.7.9.5