diff mbox series

[10/31] nds32: IRQ handling

Message ID 9dea9004aa59acc2e02405b192887b8e60449100.1510118606.git.green.hu@gmail.com
State Not Applicable, archived
Delegated to: David Miller
Headers show
Series Andes(nds32) Linux Kernel Port | expand

Commit Message

Greentime Hu Nov. 8, 2017, 5:54 a.m. UTC 
From: Greentime Hu <greentime@andestech.com>

Signed-off-by: Vincent Chen <vincentc@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
---
 arch/nds32/include/asm/irqflags.h |   49 +++++++++++++++++++++++++++++++++++++
 arch/nds32/kernel/irq.c           |   34 +++++++++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 arch/nds32/include/asm/irqflags.h
 create mode 100644 arch/nds32/kernel/irq.c

Comments

Arnd Bergmann Nov. 8, 2017, 8:49 a.m. UTC | #1 
On Wed, Nov 8, 2017 at 6:54 AM, Greentime Hu <green.hu@gmail.com> wrote:

> +
> +#ifdef CONFIG_TRACE_IRQFLAGS
> +void notrace arch_trace_hardirqs_on(void)
> +{
> +       trace_hardirqs_on();
> +}
> +
> +void notrace arch_trace_hardirqs_off(void)
> +{
> +       trace_hardirqs_off();
> +}
> +#endif

I don't see those wrappers on other architectures, what do you need them for?

       Arnd
Greentime Hu Nov. 8, 2017, 9:06 a.m. UTC | #2 
2017-11-08 16:49 GMT+08:00 Arnd Bergmann <arnd@arndb.de>:
> On Wed, Nov 8, 2017 at 6:54 AM, Greentime Hu <green.hu@gmail.com> wrote:
>
>> +
>> +#ifdef CONFIG_TRACE_IRQFLAGS
>> +void notrace arch_trace_hardirqs_on(void)
>> +{
>> +       trace_hardirqs_on();
>> +}
>> +
>> +void notrace arch_trace_hardirqs_off(void)
>> +{
>> +       trace_hardirqs_off();
>> +}
>> +#endif
>
> I don't see those wrappers on other architectures, what do you need them for?

Thanks.

I will remove them in the next version patch.
diff mbox series

Patch

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..1b935f7
--- /dev/null
+++ b/arch/nds32/kernel/irq.c
@@ -0,0 +1,34 @@ 
+/*
+ * 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();
+}
+
+#ifdef CONFIG_TRACE_IRQFLAGS
+void notrace arch_trace_hardirqs_on(void)
+{
+	trace_hardirqs_on();
+}
+
+void notrace arch_trace_hardirqs_off(void)
+{
+	trace_hardirqs_off();
+}
+#endif