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/*
* arch/arm/include/asm/glue.h
*
* 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
* v7_early - ARMv7 generic early abort handler
*/
#undef CPU_DABORT_HANDLER
#undef MULTI_DABORT
#if defined(CONFIG_CPU_ARM610)
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER cpu_arm6_data_abort
# endif
#endif
#if defined(CONFIG_CPU_ARM710)
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER cpu_arm7_data_abort
# endif
#endif
#ifdef CONFIG_CPU_ABRT_LV4T
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER v4t_late_abort
# endif
#endif
#ifdef CONFIG_CPU_ABRT_EV4
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER v4_early_abort
# endif
#endif
#ifdef CONFIG_CPU_ABRT_EV4T
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER v4t_early_abort
# endif
#endif
#ifdef CONFIG_CPU_ABRT_EV5TJ
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER v5tj_early_abort
# endif
#endif
#ifdef CONFIG_CPU_ABRT_EV5T
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER v5t_early_abort
# endif
#endif
#ifdef CONFIG_CPU_ABRT_EV6
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER v6_early_abort
# endif
#endif
#ifdef CONFIG_CPU_ABRT_EV7
# ifdef CPU_DABORT_HANDLER
# define MULTI_DABORT 1
# else
# define CPU_DABORT_HANDLER v7_early_abort
# endif
#endif
#ifndef CPU_DABORT_HANDLER
#error Unknown data abort handler type
#endif
/*
* 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
#endif
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