diff options
| author |   Guo Ren <ren_guo@c-sky.com> | 2019-06-06 15:37:33 +0800 |
|---|---|---|
| committer |   Marc Zyngier <marc.zyngier@arm.com> | 2019-06-11 12:28:13 +0100 |
| commit | e85c9c90b4316131c94e2297e08ea337586c0471 (patch) | |
| tree | 45fccc608f32747d717ad1514952d640b86c7518 /drivers/irqchip | |
| parent | dt-bindings: interrupt-controller: Update csky mpintc (diff) | |
| download | linux-dev-e85c9c90b4316131c94e2297e08ea337586c0471.tar.xz linux-dev-e85c9c90b4316131c94e2297e08ea337586c0471.zip | |
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')
| -rw-r--r-- | drivers/irqchip/irq-csky-mpintc.c | 8 |
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) |