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03fdb708 PM |
1 | /* |
2 | * SHcompact irqflags support | |
3 | * | |
4 | * Copyright (C) 2006 - 2009 Paul Mundt | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file "COPYING" in the main directory of this archive | |
8 | * for more details. | |
9 | */ | |
10 | #include <linux/irqflags.h> | |
11 | #include <linux/module.h> | |
12 | ||
df9ee292 | 13 | void notrace arch_local_irq_restore(unsigned long flags) |
03fdb708 PM |
14 | { |
15 | unsigned long __dummy0, __dummy1; | |
16 | ||
df9ee292 | 17 | if (flags == ARCH_IRQ_DISABLED) { |
03fdb708 PM |
18 | __asm__ __volatile__ ( |
19 | "stc sr, %0\n\t" | |
20 | "or #0xf0, %0\n\t" | |
21 | "ldc %0, sr\n\t" | |
22 | : "=&z" (__dummy0) | |
23 | : /* no inputs */ | |
24 | : "memory" | |
25 | ); | |
26 | } else { | |
27 | __asm__ __volatile__ ( | |
28 | "stc sr, %0\n\t" | |
29 | "and %1, %0\n\t" | |
30 | #ifdef CONFIG_CPU_HAS_SR_RB | |
31 | "stc r6_bank, %1\n\t" | |
32 | "or %1, %0\n\t" | |
33 | #endif | |
34 | "ldc %0, sr\n\t" | |
35 | : "=&r" (__dummy0), "=r" (__dummy1) | |
df9ee292 | 36 | : "1" (~ARCH_IRQ_DISABLED) |
03fdb708 PM |
37 | : "memory" |
38 | ); | |
39 | } | |
40 | } | |
df9ee292 | 41 | EXPORT_SYMBOL(arch_local_irq_restore); |
03fdb708 | 42 | |
df9ee292 | 43 | unsigned long notrace arch_local_save_flags(void) |
03fdb708 PM |
44 | { |
45 | unsigned long flags; | |
46 | ||
47 | __asm__ __volatile__ ( | |
48 | "stc sr, %0\n\t" | |
49 | "and #0xf0, %0\n\t" | |
50 | : "=&z" (flags) | |
51 | : /* no inputs */ | |
52 | : "memory" | |
53 | ); | |
54 | ||
55 | return flags; | |
56 | } | |
df9ee292 | 57 | EXPORT_SYMBOL(arch_local_save_flags); |