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-rw-r--r--arch/tile/include/asm/percpu.h52
1 files changed, 0 insertions, 52 deletions
diff --git a/arch/tile/include/asm/percpu.h b/arch/tile/include/asm/percpu.h
deleted file mode 100644
index 4f7ae39fa202..000000000000
--- a/arch/tile/include/asm/percpu.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, version 2.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for
- * more details.
- */
-
-#ifndef _ASM_TILE_PERCPU_H
-#define _ASM_TILE_PERCPU_H
-
-register unsigned long my_cpu_offset_reg asm("tp");
-
-#ifdef CONFIG_PREEMPT
-/*
- * For full preemption, we can't just use the register variable
- * directly, since we need barrier() to hazard against it, causing the
- * compiler to reload anything computed from a previous "tp" value.
- * But we also don't want to use volatile asm, since we'd like the
- * compiler to be able to cache the value across multiple percpu reads.
- * So we use a fake stack read as a hazard against barrier().
- * The 'U' constraint is like 'm' but disallows postincrement.
- */
-static inline unsigned long __my_cpu_offset(void)
-{
- unsigned long tp;
- register unsigned long *sp asm("sp");
- asm("move %0, tp" : "=r" (tp) : "U" (*sp));
- return tp;
-}
-#define __my_cpu_offset __my_cpu_offset()
-#else
-/*
- * We don't need to hazard against barrier() since "tp" doesn't ever
- * change with PREEMPT_NONE, and with PREEMPT_VOLUNTARY it only
- * changes at function call points, at which we are already re-reading
- * the value of "tp" due to "my_cpu_offset_reg" being a global variable.
- */
-#define __my_cpu_offset my_cpu_offset_reg
-#endif
-
-#define set_my_cpu_offset(tp) (my_cpu_offset_reg = (tp))
-
-#include <asm-generic/percpu.h>
-
-#endif /* _ASM_TILE_PERCPU_H */