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Commit 446a4c80 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "drivers: GICv3: Enable logging of interrupts that triggered wakeup"

parents 80667d24 fdca78b5

drivers/irqchip/irq-gic-common.h

+1 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 


extern bool from_suspend;

extern struct irq_chip gic_arch_extn;

extern int msm_show_resume_irq_mask;



void gic_configure_irq(unsigned int irq, unsigned int type,

                       void __iomem *base, void (*sync_access)(void));

drivers/irqchip/irq-gic-v3.c

+34 −0
Original line number Diff line number Diff line
@@ -355,11 +355,45 @@ static int gic_suspend(void) 
	return 0;

}



static void gic_show_resume_irq(struct gic_chip_data *gic)

{

	unsigned int i;

	u32 enabled;

	u32 pending[32];

	void __iomem *base = gic_data_dist_base(gic);



	if (!msm_show_resume_irq_mask)

		return;



	for (i = 0; i * 32 < gic->irq_nr; i++) {

		enabled = readl_relaxed(base + GICD_ICENABLER + i * 4);

		pending[i] = readl_relaxed(base + GICD_ISPENDR + i * 4);

		pending[i] &= enabled;

	}



	for (i = find_first_bit((unsigned long *)pending, gic->irq_nr);

	     i < gic->irq_nr;

	     i = find_next_bit((unsigned long *)pending, gic->irq_nr, i+1)) {

		unsigned int irq = irq_find_mapping(gic->domain, i);

		struct irq_desc *desc = irq_to_desc(irq);

		const char *name = "null";



		if (desc == NULL)

			name = "stray irq";

		else if (desc->action && desc->action->name)

			name = desc->action->name;



		pr_warn("%s: %d triggered %s\n", __func__, irq, name);

	}

}



static void gic_resume_one(struct gic_chip_data *gic)

{

	unsigned int i;

	void __iomem *base = gic_data_dist_base(gic);



	gic_show_resume_irq(gic);



	for (i = 0; i * 32 < gic->irq_nr; i++) {

		/* disable all of them */

		writel_relaxed(0xffffffff, base + GICD_ICENABLER + i * 4);