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-rw-r--r--include/asm-mips/prefetch.h87
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diff --git a/include/asm-mips/prefetch.h b/include/asm-mips/prefetch.h
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--- a/include/asm-mips/prefetch.h
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-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2003 by Ralf Baechle
- */
-#ifndef __ASM_PREFETCH_H
-#define __ASM_PREFETCH_H
-
-
-/*
- * R5000 and RM5200 implements pref and prefx instructions but they're nops, so
- * rather than wasting time we pretend these processors don't support
- * prefetching at all.
- *
- * R5432 implements Load, Store, LoadStreamed, StoreStreamed, LoadRetained,
- * StoreRetained and WriteBackInvalidate but not Pref_PrepareForStore.
- *
- * Hell (and the book on my shelf I can't open ...) know what the R8000 does.
- *
- * RM7000 version 1.0 interprets all hints as Pref_Load; version 2.0 implements
- * Pref_PrepareForStore also.
- *
- * RM9000 is MIPS IV but implements prefetching like MIPS32/MIPS64; it's
- * Pref_WriteBackInvalidate is a nop and Pref_PrepareForStore is broken in
- * current versions due to erratum G105.
- *
- * VR7701 only implements the Load prefetch.
- *
- * Finally MIPS32 and MIPS64 implement all of the following hints.
- */
-
-#define Pref_Load 0
-#define Pref_Store 1
- /* 2 and 3 are reserved */
-#define Pref_LoadStreamed 4
-#define Pref_StoreStreamed 5
-#define Pref_LoadRetained 6
-#define Pref_StoreRetained 7
- /* 8 ... 24 are reserved */
-#define Pref_WriteBackInvalidate 25
-#define Pref_PrepareForStore 30
-
-#ifdef __ASSEMBLY__
-
- .macro __pref hint addr
-#ifdef CONFIG_CPU_HAS_PREFETCH
- pref \hint, \addr
-#endif
- .endm
-
- .macro pref_load addr
- __pref Pref_Load, \addr
- .endm
-
- .macro pref_store addr
- __pref Pref_Store, \addr
- .endm
-
- .macro pref_load_streamed addr
- __pref Pref_LoadStreamed, \addr
- .endm
-
- .macro pref_store_streamed addr
- __pref Pref_StoreStreamed, \addr
- .endm
-
- .macro pref_load_retained addr
- __pref Pref_LoadRetained, \addr
- .endm
-
- .macro pref_store_retained addr
- __pref Pref_StoreRetained, \addr
- .endm
-
- .macro pref_wback_inv addr
- __pref Pref_WriteBackInvalidate, \addr
- .endm
-
- .macro pref_prepare_for_store addr
- __pref Pref_PrepareForStore, \addr
- .endm
-
-#endif
-
-#endif /* __ASM_PREFETCH_H */