diff options
| author | Yuriy Kolerov <yuriy.kolerov@synopsys.com> | 2016-12-28 11:46:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-06 18:59:49 -0700 |
| commit | 301681d60003b172af1a70fdd833567e16f55d9a (patch) | |
| tree | eb5c0dc923fee83cb835ab4a7e4b6f25ffb3b263 /arch/arc | |
| parent | f10e2065ce76b8ca54301d2de40aa9b351daf407 (diff) | |
ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP
[ Upstream commit e51d5d02f688c45b6f644f472f0c80fdfa73f0cb ]
It is necessary to call entry/exit functions for parent interrupt
controllers for proper masking/unmasking of interrupt lines.
Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/kernel/mcip.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arc/kernel/mcip.c b/arch/arc/kernel/mcip.c index f39142acc89e..be131b296a55 100644 --- a/arch/arc/kernel/mcip.c +++ b/arch/arc/kernel/mcip.c @@ -10,6 +10,7 @@ #include <linux/smp.h> #include <linux/irq.h> +#include <linux/irqchip/chained_irq.h> #include <linux/spinlock.h> #include <asm/irqflags-arcv2.h> #include <asm/mcip.h> @@ -221,10 +222,13 @@ static irq_hw_number_t idu_first_hwirq; static void idu_cascade_isr(struct irq_desc *desc) { struct irq_domain *idu_domain = irq_desc_get_handler_data(desc); + struct irq_chip *core_chip = irq_desc_get_chip(desc); irq_hw_number_t core_hwirq = irqd_to_hwirq(irq_desc_get_irq_data(desc)); irq_hw_number_t idu_hwirq = core_hwirq - idu_first_hwirq; + chained_irq_enter(core_chip, desc); generic_handle_irq(irq_find_mapping(idu_domain, idu_hwirq)); + chained_irq_exit(core_chip, desc); } static int idu_irq_map(struct irq_domain *d, unsigned int virq, irq_hw_number_t hwirq) |