aboutsummaryrefslogtreecommitdiffstats
path: root/arch/h8300/include/asm/system.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/h8300/include/asm/system.h')
-rw-r--r--arch/h8300/include/asm/system.h24
1 files changed, 1 insertions, 23 deletions
diff --git a/arch/h8300/include/asm/system.h b/arch/h8300/include/asm/system.h
index 16bf1560ff68..2c2382e50d93 100644
--- a/arch/h8300/include/asm/system.h
+++ b/arch/h8300/include/asm/system.h
@@ -2,6 +2,7 @@
2#define _H8300_SYSTEM_H 2#define _H8300_SYSTEM_H
3 3
4#include <linux/linkage.h> 4#include <linux/linkage.h>
5#include <linux/irqflags.h>
5 6
6struct pt_regs; 7struct pt_regs;
7 8
@@ -51,31 +52,8 @@ asmlinkage void resume(void);
51 (last) = _last; \ 52 (last) = _last; \
52} 53}
53 54
54#define __sti() asm volatile ("andc #0x7f,ccr")
55#define __cli() asm volatile ("orc #0x80,ccr")
56
57#define __save_flags(x) \
58 asm volatile ("stc ccr,%w0":"=r" (x))
59
60#define __restore_flags(x) \
61 asm volatile ("ldc %w0,ccr": :"r" (x))
62
63#define irqs_disabled() \
64({ \
65 unsigned char flags; \
66 __save_flags(flags); \
67 ((flags & 0x80) == 0x80); \
68})
69
70#define iret() __asm__ __volatile__ ("rte": : :"memory", "sp", "cc") 55#define iret() __asm__ __volatile__ ("rte": : :"memory", "sp", "cc")
71 56
72/* For spinlocks etc */
73#define local_irq_disable() __cli()
74#define local_irq_enable() __sti()
75#define local_irq_save(x) ({ __save_flags(x); local_irq_disable(); })
76#define local_irq_restore(x) __restore_flags(x)
77#define local_save_flags(x) __save_flags(x)
78
79/* 57/*
80 * Force strict CPU ordering. 58 * Force strict CPU ordering.
81 * Not really required on H8... 59 * Not really required on H8...