Merge "drivers: mailbox: rpmh: Enhance debug logs" (0e361b41) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/mailbox/qcom-rpmh-mailbox.c

+22 −2

Original line number	Diff line number	Diff line
		/* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
		/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		@@ -128,6 +128,7 @@ struct rsc_drv {
		const char *name;
		void __iomem base; / start address of the RSC's registers */
		void __iomem reg_base; / start address for DRV specific register */
		int irq;
		int drv_id;
		struct platform_device *pdev;
		struct tcs_mbox tcs[TCS_TYPE_NR];
		@@ -877,6 +878,8 @@ static void dump_tcs_stats(struct rsc_drv *drv)
		{
		int i;
		unsigned long long curr = arch_counter_get_cntvct();
		struct irq_data *rsc_irq_data = irq_get_irq_data(drv->irq);
		bool irq_sts;

		for (i = 0; i < drv->num_tcs; i++) {
		if (!atomic_read(&drv->tcs_in_use[i]))
		@@ -890,6 +893,20 @@ static void dump_tcs_stats(struct rsc_drv *drv)
		print_tcs_regs(drv, i);
		print_response(drv, i);
		}

		if (rsc_irq_data) {
		irq_get_irqchip_state(drv->irq, IRQCHIP_STATE_PENDING,
		&irq_sts);
		pr_warn("HW IRQ %lu is %s at GIC\n", rsc_irq_data->hwirq,
		irq_sts ? "PENDING" : "NOT PENDING");
		}

		if (test_bit(TASKLET_STATE_SCHED, &drv->tasklet.state))
		pr_warn("Tasklet is scheduled for execution\n");
		else if (test_bit(TASKLET_STATE_RUN, &drv->tasklet.state))
		pr_warn("Tasklet is running\n");
		else
		pr_warn("Tasklet is not active\n");
		}

		static void chan_debug(struct mbox_chan *chan)
		@@ -979,7 +996,8 @@ static int chan_tcs_write(struct mbox_chan chan, void data)

		/* If we were just busy waiting for TCS, dump the state and return */
		if (ret == -EBUSY) {
		pr_info_ratelimited("TCS Busy, retrying RPMH message send\n");
		dev_err_ratelimited(chan->cl->dev,
		"TCS Busy, retrying RPMH message send\n");
		ret = -EAGAIN;
		}

		@@ -1258,6 +1276,8 @@ static int rsc_drv_probe(struct platform_device *pdev)
		if (ret)
		return ret;

		drv->irq = irq;

		/* Enable interrupts for AMC TCS */
		write_tcs_reg(drv->reg_base, RSC_DRV_IRQ_ENABLE, 0, 0,
		drv->tcs[ACTIVE_TCS].tcs_mask);