Import of Linus's Linux 1.1.68

1 files changed, 42 insertions, 0 deletions

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
new file mode 100644
index 000000000..2ccaec523
--- /dev/null
+++ b/include/linux/interrupt.h
@@ -0,0 +1,42 @@
+/* interrupt.h */
+#ifndef _LINUX_INTERRUPT_H
+#define _LINUX_INTERRUPT_H
+
+struct bh_struct {
+	void (*routine)(void *);
+	void *data;
+};
+
+extern unsigned long bh_active;
+extern unsigned long bh_mask;
+extern struct bh_struct bh_base[32];
+
+/* Who gets which entry in bh_base.  Things which will occur most often
+   should come first - in which case NET should be up the top with SERIAL/TQUEUE! */
+   
+enum {
+	TIMER_BH = 0,
+	CONSOLE_BH,
+	TQUEUE_BH,
+	SERIAL_BH,
+	NET_BH,
+	IMMEDIATE_BH,
+	KEYBOARD_BH
+};
+
+extern inline void mark_bh(int nr)
+{
+	__asm__ __volatile__("orl %1,%0":"=m" (bh_active):"ir" (1<<nr));
+}
+
+extern inline void disable_bh(int nr)
+{
+	__asm__ __volatile__("andl %1,%0":"=m" (bh_mask):"ir" (~(1<<nr)));
+}
+
+extern inline void enable_bh(int nr)
+{
+	__asm__ __volatile__("orl %1,%0":"=m" (bh_mask):"ir" (1<<nr));
+}
+
+#endif