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Commit 4d0e80c4 authored by Archana Sathyakumar's avatar Archana Sathyakumar Committed by Matt Wagantall
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platsmp: Print the pending irqs in case of hotplug failure 



Print the enabled and pending interrupt to help investigate cpu
hotplug failure.

CRs-fixed: 675717
Change-Id: Ib85302ed84ed6e6bdb6bfac593021da9eb790330
Signed-off-by: default avatarArchana Sathyakumar <asathyak@codeaurora.org>
parent 7f69ed3b

drivers/irqchip/irq-gic.c

+26 −0
Original line number Original line Diff line number Diff line 
/*

/*

 *  Copyright (C) 2002 ARM Limited, All Rights Reserved.

 *  Copyright (C) 2002 ARM Limited, All Rights Reserved.

 *  Copyright (c) 2014, The Linux Foundation. All rights reserved.

 *

 *

 * This program is free software; you can redistribute it and/or modify

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * it under the terms of the GNU General Public License version 2 as
@@ -218,6 +219,31 @@ static int gic_suspend(void) 




extern int msm_show_resume_irq_mask;

extern int msm_show_resume_irq_mask;





/*

 * gic_show_pending_irq - Shows the pending interrupts

 * Note: Interrupts should be disabled on the cpu from which

 * this is called to get accurate list of pending interrupts.

 */

void gic_show_pending_irq(void)

{

	void __iomem *base;

	unsigned long pending[32];

	u32 enabled;

	unsigned int i, j;



	for (i = 0; i < MAX_GIC_NR; i++) {

		base = gic_data_dist_base(&gic_data[i]);

		for (j = 0; j * 32 < gic_data[i].gic_irqs; j++) {

			enabled = readl_relaxed(base +

						GIC_DIST_ENABLE_SET + j * 4);

			pending[j] = readl_relaxed(base +

						GIC_DIST_PENDING_SET + j * 4);

			pending[j] &= enabled;

			pr_err("Pending irqs[%d] %lx\n", j, pending[j]);

		}

	}

}



static void gic_show_resume_irq(struct gic_chip_data *gic)

static void gic_show_resume_irq(struct gic_chip_data *gic)

{

{

	unsigned int i;

	unsigned int i;

include/linux/irqchip/arm-gic.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -2,6 +2,7 @@ 
 *  include/linux/irqchip/arm-gic.h

 *  include/linux/irqchip/arm-gic.h

 *

 *

 *  Copyright (C) 2002 ARM Limited, All Rights Reserved.

 *  Copyright (C) 2002 ARM Limited, All Rights Reserved.

 *  Copyright (c) 2014, The Linux Foundation. All rights reserved.

 *

 *

 * This program is free software; you can redistribute it and/or modify

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * it under the terms of the GNU General Public License version 2 as
@@ -110,6 +111,7 @@ void gic_send_sgi(unsigned int cpu_id, unsigned int irq); 
int gic_get_cpu_id(unsigned int cpu);

int gic_get_cpu_id(unsigned int cpu);

void gic_migrate_target(unsigned int new_cpu_id);

void gic_migrate_target(unsigned int new_cpu_id);

unsigned long gic_get_sgir_physaddr(void);

unsigned long gic_get_sgir_physaddr(void);

void gic_show_pending_irq(void);





extern const struct irq_domain_ops *gic_routable_irq_domain_ops;

extern const struct irq_domain_ops *gic_routable_irq_domain_ops;

static inline void __init register_routable_domain_ops

static inline void __init register_routable_domain_ops