This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-sh / irqflags.h

diff --git a/include/asm-sh/irqflags.h b/include/asm-sh/irqflags.h
new file mode 100644 (file)
index 0000000..9dedc1b
--- /dev/null
+++ b/include/asm-sh/irqflags.h
@@ -0,0 +1,123 @@
+#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)
+
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+       if ((flags & 0xf0) != 0xf0)
+               raw_local_irq_enable();
+}
+
+#endif /* __ASM_SH_IRQFLAGS_H */