[PATCH v3 11/33] nds32: IRQ handling
From: Greentime Hu <hidden>
Date: 2017-12-08 09:59:31
Also in:
linux-devicetree, linux-serial, lkml, netdev
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 | 49 +++++++++++++++++++++++++++++++++++++ arch/nds32/kernel/irq.c | 22 +++++++++++++++++ 2 files changed, 71 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..7c1940f
--- /dev/null
+++ b/arch/nds32/include/asm/irqflags.h@@ -0,0 +1,49 @@ +/* + * Copyright (C) 2005-2017 Andes Technology Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#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..119dc9f
--- /dev/null
+++ b/arch/nds32/kernel/irq.c@@ -0,0 +1,22 @@ +/* + * Copyright (C) 2005-2017 Andes Technology Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/irqchip.h> + +void __init init_IRQ(void) +{ + irqchip_init(); +}
--
1.7.9.5