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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-06-15 04:36:54 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-06-15 04:36:54 +0400
commit7dafd239ab522d38979ebe44d79aa68ad7b1a383 (patch)
tree04754a0c6495e57c1fe5f417fbfc99272d353c0e /include/asm-generic/hardirq.h
parentbc47ab0241c7c86da4f5e5f82fbca7d45387c18d (diff)
parent45e3e1935e2857c54783291107d33323b3ef33c8 (diff)
downloadlinux-7dafd239ab522d38979ebe44d79aa68ad7b1a383.tar.xz
Merge commit 'origin/master' into next
Diffstat (limited to 'include/asm-generic/hardirq.h')
-rw-r--r--include/asm-generic/hardirq.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-generic/hardirq.h b/include/asm-generic/hardirq.h
new file mode 100644
index 000000000000..3d5d2c906ab3
--- /dev/null
+++ b/include/asm-generic/hardirq.h
@@ -0,0 +1,34 @@
+#ifndef __ASM_GENERIC_HARDIRQ_H
+#define __ASM_GENERIC_HARDIRQ_H
+
+#include <linux/cache.h>
+#include <linux/threads.h>
+#include <linux/irq.h>
+
+typedef struct {
+ unsigned long __softirq_pending;
+} ____cacheline_aligned irq_cpustat_t;
+
+#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+
+#ifndef HARDIRQ_BITS
+#define HARDIRQ_BITS 8
+#endif
+
+/*
+ * The hardirq mask has to be large enough to have
+ * space for potentially all IRQ sources in the system
+ * nesting on a single CPU:
+ */
+#if (1 << HARDIRQ_BITS) < NR_IRQS
+# error HARDIRQ_BITS is too low!
+#endif
+
+#ifndef ack_bad_irq
+static inline void ack_bad_irq(unsigned int irq)
+{
+ printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
+}
+#endif
+
+#endif /* __ASM_GENERIC_HARDIRQ_H */