Author: ian
Date: Tue Oct 20 15:15:30 2015
New Revision: 289631
URL: https://svnweb.freebsd.org/changeset/base/289631
Log:
Uncomment some rather important code that was commented out for benchmarking.
Normally this routine is supposed to loop until the PIC returns a "no more
interrupts pending" indication. I had commented that out to do just one
interrupt per invokation to do some timing tests.
Spotted by: Svata Kraus
Pointy Hat: ian
Modified:
head/sys/arm/arm/gic.c
Modified: head/sys/arm/arm/gic.c
==============================================================================
--- head/sys/arm/arm/gic.c Tue Oct 20 13:47:36 2015 (r289630)
+++ head/sys/arm/arm/gic.c Tue Oct 20 15:15:30 2015 (r289631)
@@ -554,10 +554,10 @@ dispatch_irq:
arm_irq_dispatch(isrc, tf);
next_irq:
-// arm_irq_memory_barrier(irq); /* XXX */
-// irq_active_reg = gic_c_read_4(sc, GICC_IAR);
-// irq = irq_active_reg & 0x3FF;
- if (0 && irq < sc->nirqs)
+ arm_irq_memory_barrier(irq);
+ irq_active_reg = gic_c_read_4(sc, GICC_IAR);
+ irq = irq_active_reg & 0x3FF;
+ if (irq < sc->nirqs)
goto dispatch_irq;
return (FILTER_HANDLED);
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