aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sh/kernel/irq_32.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-09 22:03:16 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-09 22:03:16 -0500
commit3a43aaa31790c36b69ebf8a6396f37fade86b531 (patch)
tree7c7f8da6219d546f2b44534cb7be1fb5591d6ac4 /arch/sh/kernel/irq_32.c
parentaed886ce777590eac87f7ce2897d9f8357754331 (diff)
parent6a5a0b9139b19dd1a107870269a35bc9cf18d2dc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (137 commits) sh: include empty zero page in romImage sh: Make associative cache writes fatal on all SH-4A parts. sh: Drop associative writes for SH-4 cache flushes. sh: Partial revert of copy/clear_user_highpage() optimizations. sh: Add default uImage rule for se7724, ap325rxa, and migor. sh: allow runtime pm without suspend/resume callbacks sh: mach-ecovec24: Remove un-defined settings for VPU sh: mach-ecovec24: LCDC drive ability become high sh: fix sh7724 VEU3F resource size serial: sh-sci: Fix too early port disabling. sh: pfc: pr_info() -> pr_debug() cleanups. sh: pfc: Convert from ctrl_xxx() to __raw_xxx() I/O routines. sh: Improve kfr2r09 serial port setup code sh: Break out SuperH PFC code sh: Move KEYSC header file sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file sh: Add CPG save/restore code for sh7724 R-standby sh: Add SDHI power control support to Ecovec mfd: Add power control platform data to SDHI driver sh: mach-ecovec24: modify address map ...
Diffstat (limited to 'arch/sh/kernel/irq_32.c')
-rw-r--r--arch/sh/kernel/irq_32.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/sh/kernel/irq_32.c b/arch/sh/kernel/irq_32.c
new file mode 100644
index 000000000000..e33ab15831f9
--- /dev/null
+++ b/arch/sh/kernel/irq_32.c
@@ -0,0 +1,57 @@
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
13void notrace raw_local_irq_restore(unsigned long flags)
14{
15 unsigned long __dummy0, __dummy1;
16
17 if (flags == RAW_IRQ_DISABLED) {
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)
36 : "1" (~RAW_IRQ_DISABLED)
37 : "memory"
38 );
39 }
40}
41EXPORT_SYMBOL(raw_local_irq_restore);
42
43unsigned long notrace __raw_local_save_flags(void)
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}
57EXPORT_SYMBOL(__raw_local_save_flags);