From: Guo Ren <ren_guo@c-sky.com>
To: akpm@linux-foundation.org, arnd@arndb.de,
daniel.lezcano@linaro.org, davem@davemloft.net,
gregkh@linuxfoundation.org, hch@infradead.org,
marc.zyngier@arm.com, mark.rutland@arm.com, peterz@infradead.org,
robh@kernel.org, tglx@linutronix.de
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
devicetree@vger.kernel.org, robh+dt@kernel.org,
c-sky_gcc_upstream@c-sky.com, Guo Ren <ren_guo@c-sky.com>
Subject: [PATCH V9 10/21] csky: IRQ handling
Date: Tue, 16 Oct 2018 10:58:29 +0800 [thread overview]
Message-ID: <131eaaee23e5f55cdce90b76b2a64f67cdf0c685.1539655732.git.ren_guo@c-sky.com> (raw)
In-Reply-To: <cover.1539655731.git.ren_guo@c-sky.com>
In-Reply-To: <cover.1539655731.git.ren_guo@c-sky.com>
This patch adds IRQ handling files.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
---
Changelog:
- Use CONFIG_GENERIC_IRQ_MULTI_HANDLER
---
---
arch/csky/include/asm/irqflags.h | 49 ++++++++++++++++++++++++++++++++++++++++
arch/csky/kernel/irq.c | 22 ++++++++++++++++++
2 files changed, 71 insertions(+)
create mode 100644 arch/csky/include/asm/irqflags.h
create mode 100644 arch/csky/kernel/irq.c
diff --git a/arch/csky/include/asm/irqflags.h b/arch/csky/include/asm/irqflags.h
new file mode 100644
index 0000000..9e3a569
--- /dev/null
+++ b/arch/csky/include/asm/irqflags.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __ASM_CSKY_IRQFLAGS_H
+#define __ASM_CSKY_IRQFLAGS_H
+#include <abi/reg_ops.h>
+
+static inline unsigned long arch_local_irq_save(void)
+{
+ unsigned long flags;
+
+ flags = mfcr("psr");
+ asm volatile("psrclr ie\n":::"memory");
+ return flags;
+}
+#define arch_local_irq_save arch_local_irq_save
+
+static inline void arch_local_irq_enable(void)
+{
+ asm volatile("psrset ee, ie\n":::"memory");
+}
+#define arch_local_irq_enable arch_local_irq_enable
+
+static inline void arch_local_irq_disable(void)
+{
+ asm volatile("psrclr ie\n":::"memory");
+}
+#define arch_local_irq_disable arch_local_irq_disable
+
+static inline unsigned long arch_local_save_flags(void)
+{
+ return mfcr("psr");
+}
+#define arch_local_save_flags arch_local_save_flags
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+ mtcr("psr", flags);
+}
+#define arch_local_irq_restore arch_local_irq_restore
+
+static inline int arch_irqs_disabled_flags(unsigned long flags)
+{
+ return !(flags & (1<<6));
+}
+#define arch_irqs_disabled_flags arch_irqs_disabled_flags
+
+#include <asm-generic/irqflags.h>
+
+#endif /* __ASM_CSKY_IRQFLAGS_H */
diff --git a/arch/csky/kernel/irq.c b/arch/csky/kernel/irq.c
new file mode 100644
index 0000000..03a1930
--- /dev/null
+++ b/arch/csky/kernel/irq.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <asm/traps.h>
+#include <asm/smp.h>
+
+void __init init_IRQ(void)
+{
+ irqchip_init();
+#ifdef CONFIG_SMP
+ setup_smp_ipi();
+#endif
+}
+
+asmlinkage void __irq_entry csky_do_IRQ(struct pt_regs *regs)
+{
+ handle_arch_irq(regs);
+}
--
2.7.4
next prev parent reply other threads:[~2018-10-16 3:02 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 2:58 [PATCH V9 00/21] C-SKY(csky) Linux Kernel Port Guo Ren
2018-10-16 2:58 ` [PATCH V9 01/21] csky: Build infrastructure Guo Ren
2018-10-23 0:08 ` Guo Ren
2018-10-24 22:53 ` Arnd Bergmann
2018-10-25 17:04 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 02/21] csky: defconfig Guo Ren
2018-10-17 14:56 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 03/21] csky: Kernel booting Guo Ren
2018-10-17 14:58 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 04/21] csky: Exception handling and mm-fault Guo Ren
2018-10-17 14:59 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 05/21] csky: System Call Guo Ren
2018-10-17 15:02 ` Arnd Bergmann
2018-10-18 2:02 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 06/21] csky: Cache and TLB routines Guo Ren
2018-10-17 15:08 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 07/21] csky: MMU and page table management Guo Ren
2018-10-17 15:06 ` Arnd Bergmann
2018-10-18 2:05 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 08/21] csky: Process management and Signal Guo Ren
2018-10-17 15:11 ` Arnd Bergmann
2018-10-18 2:37 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 09/21] csky: VDSO and rt_sigreturn Guo Ren
2018-10-17 15:13 ` Arnd Bergmann
2018-10-16 2:58 ` Guo Ren [this message]
2018-10-17 15:14 ` [PATCH V9 10/21] csky: IRQ handling Arnd Bergmann
2018-10-18 2:39 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 11/21] csky: Atomic operations Guo Ren
2018-10-17 15:17 ` Arnd Bergmann
2018-10-18 2:40 ` Guo Ren
2018-10-21 20:55 ` Peter Zijlstra
2018-10-22 1:52 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 12/21] csky: ELF and module probe Guo Ren
2018-10-17 15:18 ` Arnd Bergmann
2018-10-18 2:49 ` Guo Ren
2018-10-18 8:31 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 13/21] csky: Library functions Guo Ren
2018-10-17 15:24 ` Arnd Bergmann
2018-10-18 3:10 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 14/21] csky: User access Guo Ren
2018-10-17 15:37 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 15/21] csky: Debug and Ptrace GDB Guo Ren
2018-10-17 15:46 ` Arnd Bergmann
2018-10-18 3:17 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 16/21] csky: SMP support Guo Ren
2018-10-17 15:47 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 17/21] csky: Misc headers Guo Ren
2018-10-17 15:49 ` Arnd Bergmann
2018-10-16 2:58 ` [PATCH V9 18/21] dt-bindings: csky CPU Bindings Guo Ren
2018-10-17 15:50 ` Arnd Bergmann
2018-10-18 3:21 ` Guo Ren
2018-10-18 3:45 ` Guo Ren
2018-10-18 14:31 ` Rob Herring
2018-10-19 2:19 ` Guo Ren
2018-10-16 2:58 ` [PATCH V9 19/21] dt-bindings: Add vendor prefix for csky Guo Ren
2018-10-16 2:58 ` [PATCH V9 20/21] MAINTAINERS: Add csky Guo Ren
2018-10-17 15:51 ` Arnd Bergmann
2018-10-16 5:48 ` [PATCH V9 21/21] csky: support dword access for get_user_size() Guo Ren
2018-10-17 15:44 ` Arnd Bergmann
2018-10-18 3:41 ` Guo Ren
2018-10-18 8:34 ` Arnd Bergmann
2018-10-18 8:57 ` Guo Ren
2018-10-24 7:17 ` Arnd Bergmann
2018-10-25 17:08 ` Guo Ren
2018-10-17 15:58 ` [PATCH V9 00/21] C-SKY(csky) Linux Kernel Port Arnd Bergmann
2018-10-18 4:10 ` Guo Ren
2018-10-18 8:36 ` Arnd Bergmann
2018-10-18 9:03 ` Guo Ren
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