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Commit bfc6967c authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy Committed by Matt Wagantall
Browse files

ARM: gic: Add support for logging interrupts in RTB 



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: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
[abhimany: resolve trivial merge conflicts]
Signed-off-by: default avatarAbhimanyu Kapur <abhimany@codeaurora.org>
parent 6ec799f6

drivers/irqchip/irq-gic.c

+3 −0
Original line number Diff line number Diff line
@@ -40,6 +40,7 @@ 
#include <linux/irqchip/chained_irq.h>

#include <linux/irqchip/arm-gic.h>

#include <linux/syscore_ops.h>

#include <linux/msm_rtb.h>



#include <asm/cputype.h>

#include <asm/irq.h>
@@ -399,6 +400,7 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs) 


		if (likely(irqnr > 15 && irqnr < 1021)) {

			handle_domain_irq(gic->domain, irqnr, regs);

			uncached_logk(LOGK_IRQ, (void *)(uintptr_t)irqnr);

			continue;

		}

		if (irqnr < 16) {
@@ -406,6 +408,7 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs) 
#ifdef CONFIG_SMP

			handle_IPI(irqnr, regs);

#endif

			uncached_logk(LOGK_IRQ, (void *)(uintptr_t)irqnr);

			continue;

		}

		break;