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authorNobuhiro Iwamatsu <iwamatsu@nigauri.org>2007-09-23 02:12:30 +0900
committerNobuhiro Iwamatsu <iwamatsu@nigauri.org>2007-09-23 02:12:30 +0900
commitb02bad128669e567fce87d8df823b06a0144b8db (patch)
treee388d06d722b283d09260ceab22f9cc342216f94 /include/asm-sh/irqflags.h
parentb8685affe614ccf5f4ec66252b30e2e524d18948 (diff)
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sh: Update core code of SuperH.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Diffstat (limited to 'include/asm-sh/irqflags.h')
-rw-r--r--include/asm-sh/irqflags.h126
1 files changed, 126 insertions, 0 deletions
diff --git a/include/asm-sh/irqflags.h b/include/asm-sh/irqflags.h
new file mode 100644
index 0000000..830e548
--- /dev/null
+++ b/include/asm-sh/irqflags.h
@@ -0,0 +1,126 @@
+#ifndef __ASM_SH_IRQFLAGS_H
+#define __ASM_SH_IRQFLAGS_H
+
+static inline void raw_local_irq_enable(void)
+{
+ unsigned long __dummy0, __dummy1;
+
+ __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" (~0x000000f0)
+ : "memory"
+ );
+}
+
+static inline void raw_local_irq_disable(void)
+{
+ unsigned long flags;
+
+ __asm__ __volatile__ (
+ "stc sr, %0\n\t"
+ "or #0xf0, %0\n\t"
+ "ldc %0, sr\n\t"
+ : "=&z" (flags)
+ : /* no inputs */
+ : "memory"
+ );
+}
+
+static inline void set_bl_bit(void)
+{
+ unsigned long __dummy0, __dummy1;
+
+ __asm__ __volatile__ (
+ "stc sr, %0\n\t"
+ "or %2, %0\n\t"
+ "and %3, %0\n\t"
+ "ldc %0, sr\n\t"
+ : "=&r" (__dummy0), "=r" (__dummy1)
+ : "r" (0x10000000), "r" (0xffffff0f)
+ : "memory"
+ );
+}
+
+static inline void clear_bl_bit(void)
+{
+ unsigned long __dummy0, __dummy1;
+
+ __asm__ __volatile__ (
+ "stc sr, %0\n\t"
+ "and %2, %0\n\t"
+ "ldc %0, sr\n\t"
+ : "=&r" (__dummy0), "=r" (__dummy1)
+ : "1" (~0x10000000)
+ : "memory"
+ );
+}
+
+static inline 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;
+}
+
+#define raw_local_save_flags(flags) \
+ do { (flags) = __raw_local_save_flags(); } while (0)
+
+static inline int raw_irqs_disabled_flags(unsigned long flags)
+{
+ return (flags != 0);
+}
+
+static inline int raw_irqs_disabled(void)
+{
+ unsigned long flags = __raw_local_save_flags();
+
+ return raw_irqs_disabled_flags(flags);
+}
+
+static inline unsigned long __raw_local_irq_save(void)
+{
+ unsigned long flags, __dummy;
+
+ __asm__ __volatile__ (
+ "stc sr, %1\n\t"
+ "mov %1, %0\n\t"
+ "or #0xf0, %0\n\t"
+ "ldc %0, sr\n\t"
+ "mov %1, %0\n\t"
+ "and #0xf0, %0\n\t"
+ : "=&z" (flags), "=&r" (__dummy)
+ : /* no inputs */
+ : "memory"
+ );
+
+ return flags;
+}
+
+#define raw_local_irq_save(flags) \
+ do { (flags) = __raw_local_irq_save(); } while (0)
+
+#define local_irq_save raw_local_irq_save
+
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+ if ((flags & 0xf0) != 0xf0)
+ raw_local_irq_enable();
+}
+#define local_irq_restore raw_local_irq_restore
+
+#endif /* __ASM_SH_IRQFLAGS_H */