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				|  |  | +/*
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				|  |  | + *  arch/arm/include/asm/tlbflush.h
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				|  |  | + *
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				|  |  | + *  Copyright (C) 1999-2003 Russell King
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				|  |  | + *
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				|  |  | + * This program is free software; you can redistribute it and/or modify
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				|  |  | + * it under the terms of the GNU General Public License version 2 as
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				|  |  | + * published by the Free Software Foundation.
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				|  |  | + */
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				|  |  | +#ifndef _ASMARM_TLBFLUSH_H
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				|  |  | +#define _ASMARM_TLBFLUSH_H
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				|  |  | +
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				|  |  | +#ifdef CONFIG_MMU
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				|  |  | +
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				|  |  | +#include <asm/glue.h>
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				|  |  | +
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				|  |  | +#define TLB_V3_PAGE	(1 << 0)
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				|  |  | +#define TLB_V4_U_PAGE	(1 << 1)
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				|  |  | +#define TLB_V4_D_PAGE	(1 << 2)
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				|  |  | +#define TLB_V4_I_PAGE	(1 << 3)
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				|  |  | +#define TLB_V6_U_PAGE	(1 << 4)
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				|  |  | +#define TLB_V6_D_PAGE	(1 << 5)
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				|  |  | +#define TLB_V6_I_PAGE	(1 << 6)
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				|  |  | +
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				|  |  | +#define TLB_V3_FULL	(1 << 8)
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				|  |  | +#define TLB_V4_U_FULL	(1 << 9)
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				|  |  | +#define TLB_V4_D_FULL	(1 << 10)
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				|  |  | +#define TLB_V4_I_FULL	(1 << 11)
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				|  |  | +#define TLB_V6_U_FULL	(1 << 12)
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				|  |  | +#define TLB_V6_D_FULL	(1 << 13)
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				|  |  | +#define TLB_V6_I_FULL	(1 << 14)
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				|  |  | +
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				|  |  | +#define TLB_V6_U_ASID	(1 << 16)
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				|  |  | +#define TLB_V6_D_ASID	(1 << 17)
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				|  |  | +#define TLB_V6_I_ASID	(1 << 18)
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				|  |  | +
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				|  |  | +/* Unified Inner Shareable TLB operations (ARMv7 MP extensions) */
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				|  |  | +#define TLB_V7_UIS_PAGE	(1 << 19)
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				|  |  | +#define TLB_V7_UIS_FULL (1 << 20)
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				|  |  | +#define TLB_V7_UIS_ASID (1 << 21)
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				|  |  | +
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				|  |  | +#define TLB_BARRIER	(1 << 28)
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				|  |  | +#define TLB_L2CLEAN_FR	(1 << 29)		/* Feroceon */
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				|  |  | +#define TLB_DCLEAN	(1 << 30)
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				|  |  | +#define TLB_WB		(1 << 31)
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				|  |  | +
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				|  |  | +/*
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				|  |  | + *	MMU TLB Model
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				|  |  | + *	=============
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				|  |  | + *
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				|  |  | + *	We have the following to choose from:
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				|  |  | + *	  v3    - ARMv3
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				|  |  | + *	  v4    - ARMv4 without write buffer
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				|  |  | + *	  v4wb  - ARMv4 with write buffer without I TLB flush entry instruction
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				|  |  | + *	  v4wbi - ARMv4 with write buffer with I TLB flush entry instruction
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				|  |  | + *	  fr    - Feroceon (v4wbi with non-outer-cacheable page table walks)
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				|  |  | + *	  fa    - Faraday (v4 with write buffer with UTLB)
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				|  |  | + *	  v6wbi - ARMv6 with write buffer with I TLB flush entry instruction
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				|  |  | + *	  v7wbi - identical to v6wbi
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				|  |  | + */
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				|  |  | +#undef _TLB
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				|  |  | +#undef MULTI_TLB
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				|  |  | +
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				|  |  | +#ifdef CONFIG_SMP_ON_UP
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				|  |  | +#define MULTI_TLB 1
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				|  |  | +#endif
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				|  |  | +
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				|  |  | +#define v4_tlb_flags	(TLB_V4_U_FULL | TLB_V4_U_PAGE)
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				|  |  | +
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				|  |  | +#ifdef CONFIG_CPU_TLB_V4WT
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				|  |  | +# define v4_possible_flags	v4_tlb_flags
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				|  |  | +# define v4_always_flags	v4_tlb_flags
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				|  |  | +# ifdef _TLB
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				|  |  | +#  define MULTI_TLB 1
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				|  |  | +# else
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				|  |  | +#  define _TLB v4
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				|  |  | +# endif
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				|  |  | +#else
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				|  |  | +# define v4_possible_flags	0
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				|  |  | +# define v4_always_flags	(-1UL)
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				|  |  | +#endif
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				|  |  | +
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				|  |  | +#define fa_tlb_flags	(TLB_WB | TLB_DCLEAN | TLB_BARRIER | \
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				|  |  | +			 TLB_V4_U_FULL | TLB_V4_U_PAGE)
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				|  |  | +
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				|  |  | +#ifdef CONFIG_CPU_TLB_FA
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				|  |  | +# define fa_possible_flags	fa_tlb_flags
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				|  |  | +# define fa_always_flags	fa_tlb_flags
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				|  |  | +# ifdef _TLB
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				|  |  | +#  define MULTI_TLB 1
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				|  |  | +# else
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				|  |  | +#  define _TLB fa
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				|  |  | +# endif
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				|  |  | +#else
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				|  |  | +# define fa_possible_flags	0
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				|  |  | +# define fa_always_flags	(-1UL)
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				|  |  | +#endif
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				|  |  | +
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				|  |  | +#define v4wbi_tlb_flags	(TLB_WB | TLB_DCLEAN | \
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				|  |  | +			 TLB_V4_I_FULL | TLB_V4_D_FULL | \
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				|  |  | +			 TLB_V4_I_PAGE | TLB_V4_D_PAGE)
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				|  |  | +
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				|  |  | +#ifdef CONFIG_CPU_TLB_V4WBI
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				|  |  | +# define v4wbi_possible_flags	v4wbi_tlb_flags
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				|  |  | +# define v4wbi_always_flags	v4wbi_tlb_flags
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				|  |  | +# ifdef _TLB
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				|  |  | +#  define MULTI_TLB 1
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				|  |  | +# else
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				|  |  | +#  define _TLB v4wbi
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				|  |  | +# endif
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				|  |  | +#else
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				|  |  | +# define v4wbi_possible_flags	0
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				|  |  | +# define v4wbi_always_flags	(-1UL)
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				|  |  | +#endif
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				|  |  | +
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				|  |  | +#define fr_tlb_flags	(TLB_WB | TLB_DCLEAN | TLB_L2CLEAN_FR | \
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				|  |  | +			 TLB_V4_I_FULL | TLB_V4_D_FULL | \
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				|  |  | +			 TLB_V4_I_PAGE | TLB_V4_D_PAGE)
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				|  |  | +
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				|  |  | +#ifdef CONFIG_CPU_TLB_FEROCEON
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				|  |  | +# define fr_possible_flags	fr_tlb_flags
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				|  |  | +# define fr_always_flags	fr_tlb_flags
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				|  |  | +# ifdef _TLB
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				|  |  | +#  define MULTI_TLB 1
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				|  |  | +# else
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				|  |  | +#  define _TLB v4wbi
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				|  |  | +# endif
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				|  |  | +#else
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				|  |  | +# define fr_possible_flags	0
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				|  |  | +# define fr_always_flags	(-1UL)
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				|  |  | +#endif
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				|  |  | +
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				|  |  | +#define v4wb_tlb_flags	(TLB_WB | TLB_DCLEAN | \
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				|  |  | +			 TLB_V4_I_FULL | TLB_V4_D_FULL | \
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				|  |  | +			 TLB_V4_D_PAGE)
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