summaryrefslogtreecommitdiff
path: root/arch/arm/lib/interrupts_64.c
blob: 7c9cfce69fafe7f1ef4055e2af69a1d67ca3c7ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
/*
 * (C) Copyright 2013
 * David Feng <fenghua@phytium.com.cn>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <linux/compiler.h>
#include <efi_loader.h>


int interrupt_init(void)
{
	return 0;
}

void enable_interrupts(void)
{
	return;
}

int disable_interrupts(void)
{
	return 0;
}

void show_regs(struct pt_regs *regs)
{
	int i;

	printf("ELR:     %lx\n", regs->elr);
	printf("LR:      %lx\n", regs->regs[30]);
	for (i = 0; i < 29; i += 2)
		printf("x%-2d: %016lx x%-2d: %016lx\n",
		       i, regs->regs[i], i+1, regs->regs[i+1]);
	printf("\n");
}

/*
 * do_bad_sync handles the impossible case in the Synchronous Abort vector.
 */
void do_bad_sync(struct pt_regs *pt_regs, unsigned int esr)
{
	efi_restore_gd();
	printf("Bad mode in \"Synchronous Abort\" handler, esr 0x%08x\n", esr);
	show_regs(pt_regs);
	panic("Resetting CPU ...\n");
}

/*
 * do_bad_irq handles the impossible case in the Irq vector.
 */
void do_bad_irq(struct pt_regs *pt_regs, unsigned int esr)
{
	efi_restore_gd();
	printf("Bad mode in \"Irq\" handler, esr 0x%08x\n", esr);
	show_regs(pt_regs);
	panic("Resetting CPU ...\n");
}

/*
 * do_bad_fiq handles the impossible case in the Fiq vector.
 */
void do_bad_fiq(struct pt_regs *pt_regs, unsigned int esr)
{
	efi_restore_gd();
	printf("Bad mode in \"Fiq\" handler, esr 0x%08x\n", esr);
	show_regs(pt_regs);
	panic("Resetting CPU ...\n");
}

/*
 * do_bad_error handles the impossible case in the Error vector.
 */
void do_bad_error(struct pt_regs *pt_regs, unsigned int esr)
{
	efi_restore_gd();
	printf("Bad mode in \"Error\" handler, esr 0x%08x\n", esr);
	show_regs(pt_regs);
	panic("Resetting CPU ...\n");
}

/*
 * do_sync handles the Synchronous Abort exception.
 */
void do_sync(struct pt_regs *pt_regs, unsigned int esr)
{
	efi_restore_gd();
	printf("\"Synchronous Abort\" handler, esr 0x%08x\n", esr);
	show_regs(pt_regs);
	panic("Resetting CPU ...\n");
}

/*
 * do_irq handles the Irq exception.
 */
void do_irq(struct pt_regs *pt_regs, unsigned int esr)
{
	efi_restore_gd();
	printf("\"Irq\" handler, esr 0x%08x\n", esr);
	show_regs(pt_regs);
	panic("Resetting CPU ...\n");
}

/*
 * do_fiq handles the Fiq exception.
 */
void do_fiq(struct pt_regs *pt_regs, unsigned int esr)
{
	efi_restore_gd();
	printf("\"Fiq\" handler, esr 0x%08x\n", esr);
	show_regs(pt_regs);
	panic("Resetting CPU ...\n");
}

/*
 * do_error handles the Error exception.
 * Errors are more likely to be processor specific,
 * it is defined with weak attribute and can be redefined
 * in processor specific code.
 */
void __weak do_error(struct pt_regs *pt_regs, unsigned int esr)
{
	efi_restore_gd();
	printf("\"Error\" handler, esr 0x%08x\n", esr);
	show_regs(pt_regs);
	panic("Resetting CPU ...\n");
}