1 files changed, 51 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/percpu.h b/arch/ia64/include/asm/percpu.h
new file mode 100644
index 000000000000..77f30b664b4e
--- /dev/null
+++ b/arch/ia64/include/asm/percpu.h
@@ -0,0 +1,51 @@
+#ifndef _ASM_IA64_PERCPU_H
+#define _ASM_IA64_PERCPU_H
+
+/*
+ * Copyright (C) 2002-2003 Hewlett-Packard Co
+ *	David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+#define PERCPU_ENOUGH_ROOM PERCPU_PAGE_SIZE
+
+#ifdef __ASSEMBLY__
+# define THIS_CPU(var)	(per_cpu__##var)  /* use this to mark accesses to per-CPU variables... */
+#else /* !__ASSEMBLY__ */
+
+
+#include <linux/threads.h>
+
+#ifdef CONFIG_SMP
+
+#ifdef HAVE_MODEL_SMALL_ATTRIBUTE
+# define PER_CPU_ATTRIBUTES	__attribute__((__model__ (__small__)))
+#endif
+
+#define __my_cpu_offset	__ia64_per_cpu_var(local_per_cpu_offset)
+
+extern void *per_cpu_init(void);
+
+#else /* ! SMP */
+
+#define PER_CPU_ATTRIBUTES	__attribute__((__section__(".data.percpu")))
+
+#define per_cpu_init()				(__phys_per_cpu_start)
+
+#endif	/* SMP */
+
+/*
+ * Be extremely careful when taking the address of this variable!  Due to virtual
+ * remapping, it is different from the canonical address returned by __get_cpu_var(var)!
+ * On the positive side, using __ia64_per_cpu_var() instead of __get_cpu_var() is slightly
+ * more efficient.
+ */
+#define __ia64_per_cpu_var(var)	per_cpu__##var
+
+#include <asm-generic/percpu.h>
+
+/* Equal to __per_cpu_offset[smp_processor_id()], but faster to access: */
+DECLARE_PER_CPU(unsigned long, local_per_cpu_offset);
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_IA64_PERCPU_H */