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authorGuo Ren <ren_guo@c-sky.com>2019-06-06 15:37:33 +0800
committerMarc Zyngier <marc.zyngier@arm.com>2019-06-11 12:28:13 +0100
commite85c9c90b4316131c94e2297e08ea337586c0471 (patch)
tree45fccc608f32747d717ad1514952d640b86c7518 /drivers/irqchip/irq-csky-mpintc.c
parentdc96f45074a55f307d9618ebd444991fc643836c (diff)
irqchip/irq-csky-mpintc: Remove unnecessary loop in interrupt handler
csky_mpintc_handler() ->handle_domain_irq() ->irq_exit() ->invoke_softirq() ->__do_softirq() ->local_irq_enable() If new interrupt coming, it'll get into interrupt trap before return to csky_mpintc_handler(). So there is no need loop in csky_mpintc_handler. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip/irq-csky-mpintc.c')
-rw-r--r--drivers/irqchip/irq-csky-mpintc.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/irqchip/irq-csky-mpintc.c b/drivers/irqchip/irq-csky-mpintc.c
index 4457722cdd18..806ba0ef33c0 100644
--- a/drivers/irqchip/irq-csky-mpintc.c
+++ b/drivers/irqchip/irq-csky-mpintc.c
@@ -34,7 +34,6 @@ static void __iomem *INTCL_base;
#define INTCL_PICTLR 0x0
#define INTCL_CFGR 0x14
#define INTCL_SIGR 0x60
-#define INTCL_HPPIR 0x68
#define INTCL_RDYIR 0x6c
#define INTCL_SENR 0xa0
#define INTCL_CENR 0xa4
@@ -75,11 +74,8 @@ static void csky_mpintc_handler(struct pt_regs *regs)
{
void __iomem *reg_base = this_cpu_read(intcl_reg);
- do {
- handle_domain_irq(root_domain,
- readl_relaxed(reg_base + INTCL_RDYIR),
- regs);
- } while (readl_relaxed(reg_base + INTCL_HPPIR) & BIT(31));
+ handle_domain_irq(root_domain,
+ readl_relaxed(reg_base + INTCL_RDYIR), regs);
}
static void csky_mpintc_enable(struct irq_data *d)