Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / hexagon / kernel / vm_events.c
1 /*
2  * Mostly IRQ support for Hexagon
3  *
4  * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
5  *
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.
9  *
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.
14  *
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
18  * 02110-1301, USA.
19  */
20
21 #include <linux/kernel.h>
22 #include <asm/registers.h>
23 #include <linux/irq.h>
24 #include <linux/hardirq.h>
25
26 /*
27  * show_regs - print pt_regs structure
28  * @regs: pointer to pt_regs
29  *
30  * To-do:  add all the accessor definitions to registers.h
31  *
32  * Will make this routine a lot easier to write.
33  */
34 void show_regs(struct pt_regs *regs)
35 {
36         printk(KERN_EMERG "restart_r0: \t0x%08lx   syscall_nr: %ld\n",
37                regs->restart_r0, regs->syscall_nr);
38         printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds);
39         printk(KERN_EMERG "lc0: \t0x%08lx   sa0: 0x%08lx   m0:  0x%08lx\n",
40                regs->lc0, regs->sa0, regs->m0);
41         printk(KERN_EMERG "lc1: \t0x%08lx   sa1: 0x%08lx   m1:  0x%08lx\n",
42                regs->lc1, regs->sa1, regs->m1);
43         printk(KERN_EMERG "gp: \t0x%08lx   ugp: 0x%08lx   usr: 0x%08lx\n",
44                regs->gp, regs->ugp, regs->usr);
45         printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00,
46                 regs->r01,
47                 regs->r02,
48                 regs->r03);
49         printk(KERN_EMERG "r4:  \t0x%08lx %08lx %08lx %08lx\n", regs->r04,
50                 regs->r05,
51                 regs->r06,
52                 regs->r07);
53         printk(KERN_EMERG "r8:  \t0x%08lx %08lx %08lx %08lx\n", regs->r08,
54                 regs->r09,
55                 regs->r10,
56                 regs->r11);
57         printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12,
58                 regs->r13,
59                 regs->r14,
60                 regs->r15);
61         printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16,
62                 regs->r17,
63                 regs->r18,
64                 regs->r19);
65         printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20,
66                 regs->r21,
67                 regs->r22,
68                 regs->r23);
69         printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24,
70                 regs->r25,
71                 regs->r26,
72                 regs->r27);
73         printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28,
74                 regs->r29,
75                 regs->r30,
76                 regs->r31);
77
78         printk(KERN_EMERG "elr: \t0x%08lx   cause: 0x%08lx   user_mode: %d\n",
79                 pt_elr(regs), pt_cause(regs), user_mode(regs));
80         printk(KERN_EMERG "psp: \t0x%08lx   badva: 0x%08lx   int_enabled: %d\n",
81                 pt_psp(regs), pt_badva(regs), ints_enabled(regs));
82 }
83
84 void dummy_handler(struct pt_regs *regs)
85 {
86         unsigned int elr = pt_elr(regs);
87         printk(KERN_ERR "Unimplemented handler; ELR=0x%08x\n", elr);
88 }
89
90
91 void arch_do_IRQ(struct pt_regs *regs)
92 {
93         int irq = pt_cause(regs);
94         struct pt_regs *old_regs = set_irq_regs(regs);
95
96         irq_enter();
97         generic_handle_irq(irq);
98         irq_exit();
99         set_irq_regs(old_regs);
100 }