Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
[pandora-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 #include <asm/system.h>
26
27 /*
28  * show_regs - print pt_regs structure
29  * @regs: pointer to pt_regs
30  *
31  * To-do:  add all the accessor definitions to registers.h
32  *
33  * Will make this routine a lot easier to write.
34  */
35 void show_regs(struct pt_regs *regs)
36 {
37         printk(KERN_EMERG "restart_r0: \t0x%08lx   syscall_nr: %ld\n",
38                regs->restart_r0, regs->syscall_nr);
39         printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds);
40         printk(KERN_EMERG "lc0: \t0x%08lx   sa0: 0x%08lx   m0:  0x%08lx\n",
41                regs->lc0, regs->sa0, regs->m0);
42         printk(KERN_EMERG "lc1: \t0x%08lx   sa1: 0x%08lx   m1:  0x%08lx\n",
43                regs->lc1, regs->sa1, regs->m1);
44         printk(KERN_EMERG "gp: \t0x%08lx   ugp: 0x%08lx   usr: 0x%08lx\n",
45                regs->gp, regs->ugp, regs->usr);
46         printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00,
47                 regs->r01,
48                 regs->r02,
49                 regs->r03);
50         printk(KERN_EMERG "r4:  \t0x%08lx %08lx %08lx %08lx\n", regs->r04,
51                 regs->r05,
52                 regs->r06,
53                 regs->r07);
54         printk(KERN_EMERG "r8:  \t0x%08lx %08lx %08lx %08lx\n", regs->r08,
55                 regs->r09,
56                 regs->r10,
57                 regs->r11);
58         printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12,
59                 regs->r13,
60                 regs->r14,
61                 regs->r15);
62         printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16,
63                 regs->r17,
64                 regs->r18,
65                 regs->r19);
66         printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20,
67                 regs->r21,
68                 regs->r22,
69                 regs->r23);
70         printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24,
71                 regs->r25,
72                 regs->r26,
73                 regs->r27);
74         printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28,
75                 regs->r29,
76                 regs->r30,
77                 regs->r31);
78
79         printk(KERN_EMERG "elr: \t0x%08lx   cause: 0x%08lx   user_mode: %d\n",
80                 pt_elr(regs), pt_cause(regs), user_mode(regs));
81         printk(KERN_EMERG "psp: \t0x%08lx   badva: 0x%08lx   int_enabled: %d\n",
82                 pt_psp(regs), pt_badva(regs), ints_enabled(regs));
83 }
84
85 void dummy_handler(struct pt_regs *regs)
86 {
87         unsigned int elr = pt_elr(regs);
88         printk(KERN_ERR "Unimplemented handler; ELR=0x%08x\n", elr);
89 }
90
91
92 void arch_do_IRQ(struct pt_regs *regs)
93 {
94         int irq = pt_cause(regs);
95         struct pt_regs *old_regs = set_irq_regs(regs);
96
97         irq_enter();
98         generic_handle_irq(irq);
99         irq_exit();
100         set_irq_regs(old_regs);
101 }