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authorPhilippe Gerum <rpm@xenomai.org>2009-06-16 03:25:42 (GMT)
committerMike Frysinger <vapier@gentoo.org>2009-06-23 01:15:54 (GMT)
commita40494a62a11dbaf326397aa94b2018ead09884d (patch)
tree2440b4b4b510393ff057761021e9b218a5e1e142 /arch/blackfin/mach-common
parent06ecc190f3928850cb77c498f745fc8e9a7e2fd7 (diff)
downloadlinux-a40494a62a11dbaf326397aa94b2018ead09884d.tar.xz
Blackfin: allow CONFIG_TICKSOURCE_GPTMR0 with interrupt pipeline
Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/mach-common')
-rw-r--r--arch/blackfin/mach-common/ints-priority.c47
1 files changed, 22 insertions, 25 deletions
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index af70f09..b421501 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -1052,35 +1052,34 @@ int __init init_arch_irq(void)
set_irq_chained_handler(irq, bfin_demux_error_irq);
break;
#endif
-#if defined(CONFIG_TICKSOURCE_GPTMR0)
- case IRQ_TIMER0:
- set_irq_handler(irq, handle_percpu_irq);
- break;
-#endif
#ifdef CONFIG_SMP
case IRQ_SUPPLE_0:
case IRQ_SUPPLE_1:
set_irq_handler(irq, handle_percpu_irq);
break;
#endif
- default:
#ifdef CONFIG_IPIPE
- /*
- * We want internal interrupt sources to be
- * masked, because ISRs may trigger interrupts
- * recursively (e.g. DMA), but interrupts are
- * _not_ masked at CPU level. So let's handle
- * most of them as level interrupts, except
- * the timer interrupt which is special.
- */
- if (irq == IRQ_SYSTMR || irq == IRQ_CORETMR)
- set_irq_handler(irq, handle_simple_irq);
- else
- set_irq_handler(irq, handle_level_irq);
+#ifndef CONFIG_TICKSOURCE_CORETMR
+ case IRQ_TIMER0:
+ set_irq_handler(irq, handle_simple_irq);
+ break;
+#endif /* !CONFIG_TICKSOURCE_CORETMR */
+ case IRQ_CORETMR:
+ set_irq_handler(irq, handle_simple_irq);
+ break;
+ default:
+ set_irq_handler(irq, handle_level_irq);
+ break;
#else /* !CONFIG_IPIPE */
+#ifdef CONFIG_TICKSOURCE_GPTMR0
+ case IRQ_TIMER0:
+ set_irq_handler(irq, handle_percpu_irq);
+ break;
+#endif /* CONFIG_TICKSOURCE_GPTMR0 */
+ default:
set_irq_handler(irq, handle_simple_irq);
-#endif /* !CONFIG_IPIPE */
break;
+#endif /* !CONFIG_IPIPE */
}
}
@@ -1224,15 +1223,14 @@ __attribute__((l1_text))
asmlinkage int __ipipe_grab_irq(int vec, struct pt_regs *regs)
{
struct ipipe_percpu_domain_data *p = ipipe_root_cpudom_ptr();
- struct ipipe_domain *this_domain = ipipe_current_domain;
+ struct ipipe_domain *this_domain = __ipipe_current_domain;
struct ivgx *ivg_stop = ivg7_13[vec-IVG7].istop;
struct ivgx *ivg = ivg7_13[vec-IVG7].ifirst;
int irq, s;
- if (likely(vec == EVT_IVTMR_P)) {
+ if (likely(vec == EVT_IVTMR_P))
irq = IRQ_CORETMR;
-
- } else {
+ else {
#if defined(SIC_ISR0) || defined(SICA_ISR0)
unsigned long sic_status[3];
@@ -1262,12 +1260,11 @@ asmlinkage int __ipipe_grab_irq(int vec, struct pt_regs *regs)
break;
}
#endif
-
irq = ivg->irqno;
}
if (irq == IRQ_SYSTMR) {
-#ifndef CONFIG_GENERIC_CLOCKEVENTS
+#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || defined(CONFIG_TICKSOURCE_GPTMR0)
bfin_write_TIMER_STATUS(1); /* Latch TIMIL0 */
#endif
/* This is basically what we need from the register frame. */