2 * Mostly IRQ support for Hexagon
4 * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 and
8 * only version 2 as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 #include <linux/kernel.h>
22 #include <linux/sched/debug.h>
23 #include <asm/registers.h>
24 #include <linux/irq.h>
25 #include <linux/hardirq.h>
28 * show_regs - print pt_regs structure
29 * @regs: pointer to pt_regs
31 * To-do: add all the accessor definitions to registers.h
33 * Will make this routine a lot easier to write.
35 void show_regs(struct pt_regs *regs)
37 show_regs_print_info(KERN_EMERG);
39 printk(KERN_EMERG "restart_r0: \t0x%08lx syscall_nr: %ld\n",
40 regs->restart_r0, regs->syscall_nr);
41 printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds);
42 printk(KERN_EMERG "lc0: \t0x%08lx sa0: 0x%08lx m0: 0x%08lx\n",
43 regs->lc0, regs->sa0, regs->m0);
44 printk(KERN_EMERG "lc1: \t0x%08lx sa1: 0x%08lx m1: 0x%08lx\n",
45 regs->lc1, regs->sa1, regs->m1);
46 printk(KERN_EMERG "gp: \t0x%08lx ugp: 0x%08lx usr: 0x%08lx\n",
47 regs->gp, regs->ugp, regs->usr);
48 printk(KERN_EMERG "cs0: \t0x%08lx cs1: 0x%08lx\n",
49 regs->cs0, regs->cs1);
50 printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00,
54 printk(KERN_EMERG "r4: \t0x%08lx %08lx %08lx %08lx\n", regs->r04,
58 printk(KERN_EMERG "r8: \t0x%08lx %08lx %08lx %08lx\n", regs->r08,
62 printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12,
66 printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16,
70 printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20,
74 printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24,
78 printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28,
83 printk(KERN_EMERG "elr: \t0x%08lx cause: 0x%08lx user_mode: %d\n",
84 pt_elr(regs), pt_cause(regs), user_mode(regs));
85 printk(KERN_EMERG "psp: \t0x%08lx badva: 0x%08lx int_enabled: %d\n",
86 pt_psp(regs), pt_badva(regs), ints_enabled(regs));
89 void dummy_handler(struct pt_regs *regs)
91 unsigned int elr = pt_elr(regs);
92 printk(KERN_ERR "Unimplemented handler; ELR=0x%08x\n", elr);
96 void arch_do_IRQ(struct pt_regs *regs)
98 int irq = pt_cause(regs);
99 struct pt_regs *old_regs = set_irq_regs(regs);
102 generic_handle_irq(irq);
104 set_irq_regs(old_regs);