1 files changed, 92 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/irq.h b/arch/alpha/include/asm/irq.h
new file mode 100644
index 000000000..432402c8e
--- /dev/null
+++ b/arch/alpha/include/asm/irq.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_IRQ_H
+#define _ALPHA_IRQ_H
+
+/*
+ *	linux/include/alpha/irq.h
+ *
+ *	(C) 1994 Linus Torvalds
+ */
+
+#include <linux/linkage.h>
+
+#if   defined(CONFIG_ALPHA_GENERIC)
+
+/* Here NR_IRQS is not exact, but rather an upper bound.  This is used
+   many places throughout the kernel to size static arrays.  That's ok,
+   we'll use alpha_mv.nr_irqs when we want the real thing.  */
+
+/* When LEGACY_START_ADDRESS is selected, we leave out:
+     TITAN
+     WILDFIRE
+     MARVEL
+
+   This helps keep the kernel object size reasonable for the majority
+   of machines.
+*/
+
+# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS)
+#  define NR_IRQS      (128)           /* max is RAWHIDE/TAKARA */
+# else
+#  define NR_IRQS      (32768 + 16)    /* marvel - 32 pids */
+# endif
+
+#elif defined(CONFIG_ALPHA_CABRIOLET) || \
+      defined(CONFIG_ALPHA_EB66P)     || \
+      defined(CONFIG_ALPHA_EB164)     || \
+      defined(CONFIG_ALPHA_PC164)     || \
+      defined(CONFIG_ALPHA_LX164)
+# define NR_IRQS	35
+
+#elif defined(CONFIG_ALPHA_EB66)      || \
+      defined(CONFIG_ALPHA_EB64P)     || \
+      defined(CONFIG_ALPHA_MIKASA)
+# define NR_IRQS	32
+
+#elif defined(CONFIG_ALPHA_ALCOR)     || \
+      defined(CONFIG_ALPHA_MIATA)     || \
+      defined(CONFIG_ALPHA_RUFFIAN)   || \
+      defined(CONFIG_ALPHA_RX164)     || \
+      defined(CONFIG_ALPHA_NORITAKE)
+# define NR_IRQS	48
+
+#elif defined(CONFIG_ALPHA_SABLE)     || \
+      defined(CONFIG_ALPHA_SX164)
+# define NR_IRQS	40
+
+#elif defined(CONFIG_ALPHA_DP264) || \
+      defined(CONFIG_ALPHA_LYNX)  || \
+      defined(CONFIG_ALPHA_SHARK)
+# define NR_IRQS	64
+
+#elif defined(CONFIG_ALPHA_TITAN)
+#define NR_IRQS		80
+
+#elif defined(CONFIG_ALPHA_RAWHIDE) || \
+      defined(CONFIG_ALPHA_TAKARA) || \
+      defined(CONFIG_ALPHA_EIGER)
+# define NR_IRQS	128
+
+#elif defined(CONFIG_ALPHA_WILDFIRE)
+# define NR_IRQS	2048 /* enuff for 8 QBBs */
+
+#elif defined(CONFIG_ALPHA_MARVEL)
+# define NR_IRQS	(32768 + 16) 	/* marvel - 32 pids*/
+
+#else /* everyone else */
+# define NR_IRQS	16
+#endif
+
+static __inline__ int irq_canonicalize(int irq)
+{
+	/*
+	 * XXX is this true for all Alpha's?  The old serial driver
+	 * did it this way for years without any complaints, so....
+	 */
+	return ((irq == 2) ? 9 : irq);
+}
+
+struct pt_regs;
+extern void (*perf_irq)(unsigned long, struct pt_regs *);
+
+#endif /* _ALPHA_IRQ_H */