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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-07 09:55:03 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-07 09:55:03 +0100
commit4fb8af10d0fd09372d52966b76922b9e82bbc950 (patch)
treed240e4d40357583e3f3eb228dccf20122a5b31ed /arch/powerpc/include/asm/percpu.h
parentf44f82e8a20b98558486eb14497b2f71c78fa325 (diff)
parent64a99d2a8c3ed5c4e39f3ae1cc682aa8fd3977fc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Diffstat (limited to 'arch/powerpc/include/asm/percpu.h')
-rw-r--r--arch/powerpc/include/asm/percpu.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/percpu.h b/arch/powerpc/include/asm/percpu.h
new file mode 100644
index 00000000000..f879252b7ea
--- /dev/null
+++ b/arch/powerpc/include/asm/percpu.h
@@ -0,0 +1,24 @@
+#ifndef _ASM_POWERPC_PERCPU_H_
+#define _ASM_POWERPC_PERCPU_H_
+#ifdef __powerpc64__
+#include <linux/compiler.h>
+
+/*
+ * Same as asm-generic/percpu.h, except that we store the per cpu offset
+ * in the paca. Based on the x86-64 implementation.
+ */
+
+#ifdef CONFIG_SMP
+
+#include <asm/paca.h>
+
+#define __per_cpu_offset(cpu) (paca[cpu].data_offset)
+#define __my_cpu_offset local_paca->data_offset
+#define per_cpu_offset(x) (__per_cpu_offset(x))
+
+#endif /* CONFIG_SMP */
+#endif /* __powerpc64__ */
+
+#include <asm-generic/percpu.h>
+
+#endif /* _ASM_POWERPC_PERCPU_H_ */