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ARM: GIC: move enablement of PPI interrupts to gic.c 

Avoid adding nasty genirq-specific code to local timers to enable PPI
interrupts.  Instead, provide a gic function to do this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2010-12-06 10:38:14 +00:00
parent 7627dc802a
commit ac61d143ff
3 changed files with 12 additions and 6 deletions
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10
arch/arm/common/gic.c
View File

@ -331,6 +331,16 @@ void __cpuinit gic_secondary_init(unsigned int gic_nr)
gic_cpu_init(&gic_data[gic_nr]);
}
void __cpuinit gic_enable_ppi(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
irq_to_desc(irq)->status |= IRQ_NOPROBE;
gic_unmask_irq(irq);
local_irq_restore(flags);
}
#ifdef CONFIG_SMP
void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
{

1
arch/arm/include/asm/hardware/gic.h
View File

@ -39,6 +39,7 @@ void gic_init(unsigned int, unsigned int, void __iomem *, void __iomem *);
void gic_secondary_init(unsigned int);
void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
void gic_raise_softirq(const struct cpumask *mask, unsigned int irq);
void gic_enable_ppi(unsigned int);
#endif
#endif

7
arch/arm/kernel/smp_twd.c
View File

@ -127,8 +127,6 @@ static void __cpuinit twd_calibrate_rate(void)
*/
void __cpuinit twd_timer_setup(struct clock_event_device *clk)
{
unsigned long flags;
twd_calibrate_rate();
clk->name = "local_timer";
@ -143,10 +141,7 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk)
clk->min_delta_ns = clockevent_delta2ns(0xf, clk);
/* Make sure our local interrupt controller has this enabled */
local_irq_save(flags);
irq_to_desc(clk->irq)->status |= IRQ_NOPROBE;
get_irq_chip(clk->irq)->unmask(clk->irq);
local_irq_restore(flags);
gic_enable_ppi(clk->irq);
clockevents_register_device(clk);
}