1 files changed, 50 insertions, 0 deletions
diff --git a/include/asm-ia64/local.h b/include/asm-ia64/local.h
new file mode 100644
index 00000000000..1dbd584ad85
--- /dev/null
+++ b/include/asm-ia64/local.h
@@ -0,0 +1,50 @@
+#ifndef _ASM_IA64_LOCAL_H
+#define _ASM_IA64_LOCAL_H
+
+/*
+ * Copyright (C) 2003 Hewlett-Packard Co
+ *	David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+#include <linux/percpu.h>
+
+typedef struct {
+	atomic64_t val;
+} local_t;
+
+#define LOCAL_INIT(i)	((local_t) { { (i) } })
+#define local_read(l)	atomic64_read(&(l)->val)
+#define local_set(l, i)	atomic64_set(&(l)->val, i)
+#define local_inc(l)	atomic64_inc(&(l)->val)
+#define local_dec(l)	atomic64_dec(&(l)->val)
+#define local_add(l)	atomic64_add(&(l)->val)
+#define local_sub(l)	atomic64_sub(&(l)->val)
+
+/* Non-atomic variants, i.e., preemption disabled and won't be touched in interrupt, etc.  */
+
+#define __local_inc(l)		(++(l)->val.counter)
+#define __local_dec(l)		(--(l)->val.counter)
+#define __local_add(i,l)	((l)->val.counter += (i))
+#define __local_sub(i,l)	((l)->val.counter -= (i))
+
+/*
+ * Use these for per-cpu local_t variables.  Note they take a variable (eg. mystruct.foo),
+ * not an address.
+ */
+#define cpu_local_read(v)	local_read(&__ia64_per_cpu_var(v))
+#define cpu_local_set(v, i)	local_set(&__ia64_per_cpu_var(v), (i))
+#define cpu_local_inc(v)	local_inc(&__ia64_per_cpu_var(v))
+#define cpu_local_dec(v)	local_dec(&__ia64_per_cpu_var(v))
+#define cpu_local_add(i, v)	local_add((i), &__ia64_per_cpu_var(v))
+#define cpu_local_sub(i, v)	local_sub((i), &__ia64_per_cpu_var(v))
+
+/*
+ * Non-atomic increments, i.e., preemption disabled and won't be touched in interrupt,
+ * etc.
+ */
+#define __cpu_local_inc(v)	__local_inc(&__ia64_per_cpu_var(v))
+#define __cpu_local_dec(v)	__local_dec(&__ia64_per_cpu_var(v))
+#define __cpu_local_add(i, v)	__local_add((i), &__ia64_per_cpu_var(v))
+#define __cpu_local_sub(i, v)	__local_sub((i), &__ia64_per_cpu_var(v))
+
+#endif /* _ASM_IA64_LOCAL_H */