Quelle  vm_events.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Mostly IRQ support for Hexagon
 *
 * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
 */

#include <linux/kernel.h>
#include <linux/sched/debug.h>
#include <asm/registers.h>
#include <linux/irq.h>
#include <linux/hardirq.h>

/*
 * show_regs - print pt_regs structure
 * @regs: pointer to pt_regs
 *
 * To-do:  add all the accessor definitions to registers.h
 *
 * Will make this routine a lot easier to write.
 */
void show_regs(struct pt_regs *regs)
{
 show_regs_print_info(KERN_EMERG);

 printk(KERN_EMERG "restart_r0: \t0x%08lx syscall_nr: %ld\n",
        regs->restart_r0, regs->syscall_nr);
 printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds);
 printk(KERN_EMERG "lc0: \t0x%08lx sa0: 0x%08lx m0: 0x%08lx\n",
        regs->lc0, regs->sa0, regs->m0);
 printk(KERN_EMERG "lc1: \t0x%08lx sa1: 0x%08lx m1: 0x%08lx\n",
        regs->lc1, regs->sa1, regs->m1);
 printk(KERN_EMERG "gp: \t0x%08lx ugp: 0x%08lx usr: 0x%08lx\n",
        regs->gp, regs->ugp, regs->usr);
 printk(KERN_EMERG "cs0: \t0x%08lx cs1: 0x%08lx\n",
        regs->cs0, regs->cs1);
 printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00,
  regs->r01,
  regs->r02,
  regs->r03);
 printk(KERN_EMERG "r4: \t0x%08lx %08lx %08lx %08lx\n", regs->r04,
  regs->r05,
  regs->r06,
  regs->r07);
 printk(KERN_EMERG "r8: \t0x%08lx %08lx %08lx %08lx\n", regs->r08,
  regs->r09,
  regs->r10,
  regs->r11);
 printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12,
  regs->r13,
  regs->r14,
  regs->r15);
 printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16,
  regs->r17,
  regs->r18,
  regs->r19);
 printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20,
  regs->r21,
  regs->r22,
  regs->r23);
 printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24,
  regs->r25,
  regs->r26,
  regs->r27);
 printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28,
  regs->r29,
  regs->r30,
  regs->r31);

 printk(KERN_EMERG "elr: \t0x%08lx cause: 0x%08lx user_mode: %d\n",
  pt_elr(regs), pt_cause(regs), user_mode(regs));
 printk(KERN_EMERG "psp: \t0x%08lx badva: 0x%08lx int_enabled: %d\n",
  pt_psp(regs), pt_badva(regs), ints_enabled(regs));
}

void arch_do_IRQ(struct pt_regs *regs)
{
 int irq = pt_cause(regs);
 struct pt_regs *old_regs = set_irq_regs(regs);

 irq_enter();
 generic_handle_irq(irq);
 irq_exit();
 set_irq_regs(old_regs);
}