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ARM: gic: Add support for logging interrupts in RTB

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To help with the debug of interrupt storms and problems during IRQ
handling, log the IRQ number in RTB for each interrupt that fires.

Change-Id: Icea5ded0f7d66ba3c7608793e7c25218e2a64e0c
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
[abhimany: resolve trivial merge conflicts]
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
[aiquny: resolve trivial merge conflicts]
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
This commit is contained in:
Subbaraman Narayanamurthy 2014-04-29 12:30:42 -07:00 committed by Gerrit - the friendly Code Review server
parent 07071b6c92
commit 6975081f29
1 changed files with 3 additions and 0 deletions
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3
drivers/irqchip/irq-gic.c
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@ -38,6 +38,7 @@
#include <linux/irqchip.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/irqchip/arm-gic.h>
#include <linux/msm_rtb.h>
#include <asm/cputype.h>
#include <asm/irq.h>
@ -362,6 +363,7 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
writel_relaxed(irqstat, cpu_base + GIC_CPU_EOI);
isb();
handle_domain_irq(gic->domain, irqnr, regs);
uncached_logk(LOGK_IRQ, (void *)(uintptr_t)irqnr);
continue;
}
if (irqnr < 16) {
@ -379,6 +381,7 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
smp_rmb();
handle_IPI(irqnr, regs);
#endif
uncached_logk(LOGK_IRQ, (void *)(uintptr_t)irqnr);
continue;
}
break;