patch-2.3.16 linux/arch/alpha/kernel/irq_impl.h

• Lines: 50
• Date: Tue Aug 31 10:50:44 1999
• Orig file: v2.3.15/linux/arch/alpha/kernel/irq_impl.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.15/linux/arch/alpha/kernel/irq_impl.h linux/arch/alpha/kernel/irq_impl.h
@@ -0,0 +1,49 @@
+/*
+ *	linux/arch/alpha/kernel/irq.h
+ *
+ *	Copyright (C) 1995 Linus Torvalds
+ *	Copyright (C) 1998 Richard Henderson
+ *
+ * This file contains declarations and inline functions for interfacing
+ * with the IRQ handling routines in irq.c.
+ */
+
+#include <linux/config.h>
+
+#define STANDARD_INIT_IRQ_PROLOG	\
+	outb(0, DMA1_RESET_REG);	\
+	outb(0, DMA2_RESET_REG);	\
+	outb(0, DMA1_CLR_MASK_REG);	\
+	outb(0, DMA2_CLR_MASK_REG)
+
+extern unsigned long alpha_irq_mask;
+
+extern void common_ack_irq(unsigned long irq);
+extern void isa_device_interrupt(unsigned long vector, struct pt_regs * regs);
+extern void srm_device_interrupt(unsigned long vector, struct pt_regs * regs);
+
+extern void handle_irq(int irq, int ack, struct pt_regs * regs);
+
+#define RTC_IRQ    8
+#ifdef CONFIG_RTC
+#define TIMER_IRQ  0			 /* timer is the pit */
+#else
+#define TIMER_IRQ  RTC_IRQ		 /* timer is the rtc */
+#endif
+
+extern char _stext;
+static inline void alpha_do_profile (unsigned long pc)
+{
+	if (prof_buffer && current->pid) {
+		pc -= (unsigned long) &_stext;
+		pc >>= prof_shift;
+		/*
+		 * Don't ignore out-of-bounds PC values silently,
+		 * put them into the last histogram slot, so if
+		 * present, they will show up as a sharp peak.
+		 */
+		if (pc > prof_len - 1)
+			pc = prof_len - 1;
+		atomic_inc((atomic_t *)&prof_buffer[pc]);
+	}
+}