diff options
| author | Yuriy Kolerov <yuriy.kolerov@synopsys.com> | 2016-12-28 11:46:25 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2017-01-05 04:12:11 +0300 |
| commit | e51d5d02f688c45b6f644f472f0c80fdfa73f0cb (patch) | |
| tree | 4ff0f5721087e037bcee3b8373b74dec2e40eacd /arch/arc/kernel | |
| parent | 2163266c2704aa44211b6b61924a0fa570fe0d4b (diff) | |
| download | linux-e51d5d02f688c45b6f644f472f0c80fdfa73f0cb.tar.xz | |
ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP
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>
Diffstat (limited to 'arch/arc/kernel')
| -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 560c4afc2af4..9274f8ade8c7 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 <soc/arc/mcip.h> #include <asm/irqflags-arcv2.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) |