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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-alpha/irq.h
downloadblackbird-op-linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-alpha/irq.h')
-rw-r--r--include/asm-alpha/irq.h100
1 files changed, 100 insertions, 0 deletions
diff --git a/include/asm-alpha/irq.h b/include/asm-alpha/irq.h
new file mode 100644
index 000000000000..566db720000a
--- /dev/null
+++ b/include/asm-alpha/irq.h
@@ -0,0 +1,100 @@
+#ifndef _ALPHA_IRQ_H
+#define _ALPHA_IRQ_H
+
+/*
+ * linux/include/alpha/irq.h
+ *
+ * (C) 1994 Linus Torvalds
+ */
+
+#include <linux/linkage.h>
+#include <linux/config.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) || \
+ defined(CONFIG_ALPHA_EIGER)
+# define NR_IRQS 64
+
+#elif defined(CONFIG_ALPHA_TITAN)
+#define NR_IRQS 80
+
+#elif defined(CONFIG_ALPHA_RAWHIDE) || \
+ defined(CONFIG_ALPHA_TAKARA)
+# 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);
+}
+
+extern void disable_irq(unsigned int);
+extern void disable_irq_nosync(unsigned int);
+extern void enable_irq(unsigned int);
+
+struct pt_regs;
+extern void (*perf_irq)(unsigned long, struct pt_regs *);
+
+struct irqaction;
+int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
+
+
+#endif /* _ALPHA_IRQ_H */
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