projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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); |