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/*
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* arch / arm / include / asm / glue . h
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*
* Copyright ( C ) 1997 - 1999 Russell King
* Copyright ( C ) 2000 - 2002 Deep Blue Solutions Ltd .
*
* This program is free software ; you can redistribute it and / or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation .
*
* This file provides the glue to stick the processor - specific bits
* into the kernel in an efficient manner . The idea is to use branches
* when we ' re only targetting one class of TLB , or indirect calls
* when we ' re targetting multiple classes of TLBs .
*/
# ifdef __KERNEL__
# ifdef __STDC__
# define ____glue(name,fn) name##fn
# else
# define ____glue(name,fn) name /**/ fn
# endif
# define __glue(name,fn) ____glue(name,fn)
/*
* Data Abort Model
* = = = = = = = = = = = = = = = =
*
* We have the following to choose from :
* arm6 - ARM6 style
* arm7 - ARM7 style
* v4_early - ARMv4 without Thumb early abort handler
* v4t_late - ARMv4 with Thumb late abort handler
* v4t_early - ARMv4 with Thumb early abort handler
* v5tej_early - ARMv5 with Thumb and Java early abort handler
* xscale - ARMv5 with Thumb with Xscale extensions
* v6_early - ARMv6 generic early abort handler
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* v7_early - ARMv7 generic early abort handler
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*/
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# undef CPU_DABORT_HANDLER
# undef MULTI_DABORT
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# if defined(CONFIG_CPU_ARM610)
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER cpu_arm6_data_abort
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# endif
# endif
# if defined(CONFIG_CPU_ARM710)
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER cpu_arm7_data_abort
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# endif
# endif
# ifdef CONFIG_CPU_ABRT_LV4T
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER v4t_late_abort
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# endif
# endif
# ifdef CONFIG_CPU_ABRT_EV4
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER v4_early_abort
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# endif
# endif
# ifdef CONFIG_CPU_ABRT_EV4T
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER v4t_early_abort
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# endif
# endif
# ifdef CONFIG_CPU_ABRT_EV5TJ
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER v5tj_early_abort
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# endif
# endif
# ifdef CONFIG_CPU_ABRT_EV5T
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER v5t_early_abort
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# endif
# endif
# ifdef CONFIG_CPU_ABRT_EV6
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER v6_early_abort
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# endif
# endif
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# ifdef CONFIG_CPU_ABRT_EV7
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# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
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# else
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# define CPU_DABORT_HANDLER v7_early_abort
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# endif
# endif
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# ifndef CPU_DABORT_HANDLER
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# error Unknown data abort handler type
# endif
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/*
* Prefetch abort handler . If the CPU has an IFAR use that , otherwise
* use the address of the aborted instruction
*/
# undef CPU_PABORT_HANDLER
# undef MULTI_PABORT
# ifdef CONFIG_CPU_PABRT_IFAR
# ifdef CPU_PABORT_HANDLER
# define MULTI_PABORT 1
# else
# define CPU_PABORT_HANDLER(reg, insn) mrc p15, 0, reg, cr6, cr0, 2
# endif
# endif
# ifdef CONFIG_CPU_PABRT_NOIFAR
# ifdef CPU_PABORT_HANDLER
# define MULTI_PABORT 1
# else
# define CPU_PABORT_HANDLER(reg, insn) mov reg, insn
# endif
# endif
# ifndef CPU_PABORT_HANDLER
# error Unknown prefetch abort handler type
# endif
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# endif