1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Mostly IRQ support for Hexagon
4 *
5 * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
6 */
7
8#include <linux/kernel.h>
9#include <linux/sched/debug.h>
10#include <asm/registers.h>
11#include <linux/irq.h>
12#include <linux/hardirq.h>
13
14/*
15 * show_regs - print pt_regs structure
16 * @regs: pointer to pt_regs
17 *
18 * To-do:  add all the accessor definitions to registers.h
19 *
20 * Will make this routine a lot easier to write.
21 */
22void show_regs(struct pt_regs *regs)
23{
24	show_regs_print_info(KERN_EMERG);
25
26	printk(KERN_EMERG "restart_r0: \t0x%08lx   syscall_nr: %ld\n",
27	       regs->restart_r0, regs->syscall_nr);
28	printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds);
29	printk(KERN_EMERG "lc0: \t0x%08lx   sa0: 0x%08lx   m0:  0x%08lx\n",
30	       regs->lc0, regs->sa0, regs->m0);
31	printk(KERN_EMERG "lc1: \t0x%08lx   sa1: 0x%08lx   m1:  0x%08lx\n",
32	       regs->lc1, regs->sa1, regs->m1);
33	printk(KERN_EMERG "gp: \t0x%08lx   ugp: 0x%08lx   usr: 0x%08lx\n",
34	       regs->gp, regs->ugp, regs->usr);
35	printk(KERN_EMERG "cs0: \t0x%08lx   cs1: 0x%08lx\n",
36	       regs->cs0, regs->cs1);
37	printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00,
38		regs->r01,
39		regs->r02,
40		regs->r03);
41	printk(KERN_EMERG "r4:  \t0x%08lx %08lx %08lx %08lx\n", regs->r04,
42		regs->r05,
43		regs->r06,
44		regs->r07);
45	printk(KERN_EMERG "r8:  \t0x%08lx %08lx %08lx %08lx\n", regs->r08,
46		regs->r09,
47		regs->r10,
48		regs->r11);
49	printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12,
50		regs->r13,
51		regs->r14,
52		regs->r15);
53	printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16,
54		regs->r17,
55		regs->r18,
56		regs->r19);
57	printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20,
58		regs->r21,
59		regs->r22,
60		regs->r23);
61	printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24,
62		regs->r25,
63		regs->r26,
64		regs->r27);
65	printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28,
66		regs->r29,
67		regs->r30,
68		regs->r31);
69
70	printk(KERN_EMERG "elr: \t0x%08lx   cause: 0x%08lx   user_mode: %d\n",
71		pt_elr(regs), pt_cause(regs), user_mode(regs));
72	printk(KERN_EMERG "psp: \t0x%08lx   badva: 0x%08lx   int_enabled: %d\n",
73		pt_psp(regs), pt_badva(regs), ints_enabled(regs));
74}
75
76void arch_do_IRQ(struct pt_regs *regs)
77{
78	int irq = pt_cause(regs);
79	struct pt_regs *old_regs = set_irq_regs(regs);
80
81	irq_enter();
82	generic_handle_irq(irq);
83	irq_exit();
84	set_irq_regs(old_regs);
85}
86