X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-x86_64%2Fmach-xen%2Fasm%2Firqflags.h;fp=include%2Fasm-x86_64%2Fmach-xen%2Fasm%2Firqflags.h;h=7b03e7a732e1ef767f16ba47e992b1dee056553a;hb=f05f9504c50ed069377d37f02f22e7a16b5921de;hp=0000000000000000000000000000000000000000;hpb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;p=linux-2.6.git

diff --git a/include/asm-x86_64/mach-xen/asm/irqflags.h b/include/asm-x86_64/mach-xen/asm/irqflags.h
new file mode 100644
index 000000000..7b03e7a73
--- /dev/null
+++ b/include/asm-x86_64/mach-xen/asm/irqflags.h
@@ -0,0 +1,65 @@
+/*
+ * include/asm-x86_64/irqflags.h
+ *
+ * IRQ flags handling
+ *
+ * This file gets included from lowlevel asm headers too, to provide
+ * wrapped versions of the local_irq_*() APIs, based on the
+ * raw_local_irq_*() functions from the lowlevel headers.
+ */
+#ifndef _ASM_IRQFLAGS_H
+#define _ASM_IRQFLAGS_H
+
+#ifndef __ASSEMBLY__
+/*
+ * Interrupt control:
+ */
+
+unsigned long __raw_local_save_flags(void);
+#define raw_local_save_flags(flags) \
+		do { (flags) = __raw_local_save_flags(); } while (0)
+
+void raw_local_irq_restore(unsigned long flags);
+void raw_local_irq_disable(void);
+void raw_local_irq_enable(void);
+
+static inline int raw_irqs_disabled_flags(unsigned long flags)
+{
+	return flags != 0;
+}
+
+/*
+ * For spinlocks, etc.:
+ */
+
+unsigned long __raw_local_irq_save(void);
+
+#define raw_local_irq_save(flags) \
+		do { (flags) = __raw_local_irq_save(); } while (0)
+
+int raw_irqs_disabled(void);
+
+/*
+ * Used in the idle loop; sti takes one instruction cycle
+ * to complete:
+ */
+void raw_safe_halt(void);
+
+
+/*
+ * Used when interrupts are already enabled or to
+ * shutdown the processor:
+ */
+void halt(void);
+
+#else /* __ASSEMBLY__: */
+# ifdef CONFIG_TRACE_IRQFLAGS
+#  define TRACE_IRQS_ON		call trace_hardirqs_on_thunk
+#  define TRACE_IRQS_OFF	call trace_hardirqs_off_thunk
+# else
+#  define TRACE_IRQS_ON
+#  define TRACE_IRQS_OFF
+# endif
+#endif
+
+#endif