linux/include/asm-arm/proc-fns.h
Russell King 002547b4f8 [ARM] nommu: adjust headers for !MMU ARM systems
Majorily based on Hyok Choi's patches, this fixes up the asm-arm
header files for mmuless systems.  Over and above Hyok's patches:

- nommu.h merged into mmu.h (it's only a structure)
- nommu_context.h is essentially the same as mmu_context.h, but
  without the MM switching code.

so there's no point having separate files.  Also, in memory.h,
there's no point #ifndef'ing PHYS_OFFSET and END_MEM - both
CONFIG_DRAM_BASE and CONFIG_DRAM_SIZE will always be set by the
configuration scripts.

Other files have minor formatting changes, but are essentially
the same.  Hyok's original patches were signed off thusly:

  Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-28 17:59:45 +01:00

185 lines
3.3 KiB
C

/*
* linux/include/asm-arm/proc-fns.h
*
* Copyright (C) 1997-1999 Russell King
* Copyright (C) 2000 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.
*/
#ifndef __ASM_PROCFNS_H
#define __ASM_PROCFNS_H
#ifdef __KERNEL__
/*
* Work out if we need multiple CPU support
*/
#undef MULTI_CPU
#undef CPU_NAME
/*
* CPU_NAME - the prefix for CPU related functions
*/
#ifdef CONFIG_CPU_32
# ifdef CONFIG_CPU_ARM610
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm6
# endif
# endif
# ifdef CONFIG_CPU_ARM710
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm7
# endif
# endif
# ifdef CONFIG_CPU_ARM720T
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm720
# endif
# endif
# ifdef CONFIG_CPU_ARM920T
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm920
# endif
# endif
# ifdef CONFIG_CPU_ARM922T
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm922
# endif
# endif
# ifdef CONFIG_CPU_ARM925T
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm925
# endif
# endif
# ifdef CONFIG_CPU_ARM926T
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm926
# endif
# endif
# ifdef CONFIG_CPU_SA110
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_sa110
# endif
# endif
# ifdef CONFIG_CPU_SA1100
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_sa1100
# endif
# endif
# ifdef CONFIG_CPU_ARM1020
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm1020
# endif
# endif
# ifdef CONFIG_CPU_ARM1020E
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm1020e
# endif
# endif
# ifdef CONFIG_CPU_ARM1022
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm1022
# endif
# endif
# ifdef CONFIG_CPU_ARM1026
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_arm1026
# endif
# endif
# ifdef CONFIG_CPU_XSCALE
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_xscale
# endif
# endif
# ifdef CONFIG_CPU_XSC3
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_xsc3
# endif
# endif
# ifdef CONFIG_CPU_V6
# ifdef CPU_NAME
# undef MULTI_CPU
# define MULTI_CPU
# else
# define CPU_NAME cpu_v6
# endif
# endif
#endif
#ifndef __ASSEMBLY__
#ifndef MULTI_CPU
#include "asm/cpu-single.h"
#else
#include "asm/cpu-multi32.h"
#endif
#include <asm/memory.h>
#ifdef CONFIG_MMU
#define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
#define cpu_get_pgd() \
({ \
unsigned long pg; \
__asm__("mrc p15, 0, %0, c2, c0, 0" \
: "=r" (pg) : : "cc"); \
pg &= ~0x3fff; \
(pgd_t *)phys_to_virt(pg); \
})
#endif
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* __ASM_PROCFNS_H */