blob: b98a694ead3116c20070d91eb376899dd4e90887 (
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
|
/*
* SHcompact irqflags support
*
* Copyright (C) 2006 - 2009 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/irqflags.h>
#include <linux/module.h>
void raw_local_irq_restore(unsigned long flags)
{
unsigned long __dummy0, __dummy1;
if (flags == RAW_IRQ_DISABLED) {
__asm__ __volatile__ (
"stc sr, %0\n\t"
"or #0xf0, %0\n\t"
"ldc %0, sr\n\t"
: "=&z" (__dummy0)
: /* no inputs */
: "memory"
);
} else {
__asm__ __volatile__ (
"stc sr, %0\n\t"
"and %1, %0\n\t"
#ifdef CONFIG_CPU_HAS_SR_RB
"stc r6_bank, %1\n\t"
"or %1, %0\n\t"
#endif
"ldc %0, sr\n\t"
: "=&r" (__dummy0), "=r" (__dummy1)
: "1" (~RAW_IRQ_DISABLED)
: "memory"
);
}
}
EXPORT_SYMBOL(raw_local_irq_restore);
unsigned long __raw_local_save_flags(void)
{
unsigned long flags;
__asm__ __volatile__ (
"stc sr, %0\n\t"
"and #0xf0, %0\n\t"
: "=&z" (flags)
: /* no inputs */
: "memory"
);
return flags;
}
EXPORT_SYMBOL(__raw_local_save_flags);
|
