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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/hexagon/kernel/vm_events.c
26451 views
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// SPDX-License-Identifier: GPL-2.0-only

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/*

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 * Mostly IRQ support for Hexagon

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 *

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 * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.

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 */

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#include <linux/kernel.h>

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#include <linux/sched/debug.h>

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#include <asm/registers.h>

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#include <linux/irq.h>

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#include <linux/hardirq.h>

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/*

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 * show_regs - print pt_regs structure

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 * @regs: pointer to pt_regs

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 *

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 * To-do:  add all the accessor definitions to registers.h

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 *

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 * Will make this routine a lot easier to write.

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 */

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void show_regs(struct pt_regs *regs)

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{

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	show_regs_print_info(KERN_EMERG);

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	printk(KERN_EMERG "restart_r0: \t0x%08lx   syscall_nr: %ld\n",

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	       regs->restart_r0, regs->syscall_nr);

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	printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds);

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	printk(KERN_EMERG "lc0: \t0x%08lx   sa0: 0x%08lx   m0:  0x%08lx\n",

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	       regs->lc0, regs->sa0, regs->m0);

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	printk(KERN_EMERG "lc1: \t0x%08lx   sa1: 0x%08lx   m1:  0x%08lx\n",

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	       regs->lc1, regs->sa1, regs->m1);

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	printk(KERN_EMERG "gp: \t0x%08lx   ugp: 0x%08lx   usr: 0x%08lx\n",

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	       regs->gp, regs->ugp, regs->usr);

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	printk(KERN_EMERG "cs0: \t0x%08lx   cs1: 0x%08lx\n",

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	       regs->cs0, regs->cs1);

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	printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00,

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		regs->r01,

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		regs->r02,

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		regs->r03);

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	printk(KERN_EMERG "r4:  \t0x%08lx %08lx %08lx %08lx\n", regs->r04,

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		regs->r05,

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		regs->r06,

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		regs->r07);

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	printk(KERN_EMERG "r8:  \t0x%08lx %08lx %08lx %08lx\n", regs->r08,

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		regs->r09,

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		regs->r10,

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		regs->r11);

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	printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12,

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		regs->r13,

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		regs->r14,

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		regs->r15);

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	printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16,

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		regs->r17,

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		regs->r18,

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		regs->r19);

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	printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20,

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		regs->r21,

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		regs->r22,

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		regs->r23);

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	printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24,

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		regs->r25,

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		regs->r26,

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		regs->r27);

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	printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28,

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		regs->r29,

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		regs->r30,

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		regs->r31);

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	printk(KERN_EMERG "elr: \t0x%08lx   cause: 0x%08lx   user_mode: %d\n",

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		pt_elr(regs), pt_cause(regs), user_mode(regs));

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	printk(KERN_EMERG "psp: \t0x%08lx   badva: 0x%08lx   int_enabled: %d\n",

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		pt_psp(regs), pt_badva(regs), ints_enabled(regs));

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}

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void arch_do_IRQ(struct pt_regs *regs)

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{

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	int irq = pt_cause(regs);

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	struct pt_regs *old_regs = set_irq_regs(regs);

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	irq_enter();

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	generic_handle_irq(irq);

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	irq_exit();

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	set_irq_regs(old_regs);

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}

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