kernel-ark/include/asm-arm/cpu-multi32.h
Russell King ad1ae2fe7f [ARM] Unuse another Linux PTE bit
L_PTE_ASID is not really required to be stored in every PTE, since we
can identify it via the address passed to set_pte_at().  So, create
set_pte_ext() which takes the address of the PTE to set, the Linux
PTE value, and the additional CPU PTE bits which aren't encoded in
the Linux PTE value.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-12-13 14:34:43 +00:00

66 lines
1.6 KiB
C

/*
* linux/include/asm-arm/cpu-multi32.h
*
* Copyright (C) 2000 Russell King
*
* 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.
*/
#include <asm/page.h>
struct mm_struct;
/*
* Don't change this structure - ASM code
* relies on it.
*/
extern struct processor {
/* MISC
* get data abort address/flags
*/
void (*_data_abort)(unsigned long pc);
/*
* Set up any processor specifics
*/
void (*_proc_init)(void);
/*
* Disable any processor specifics
*/
void (*_proc_fin)(void);
/*
* Special stuff for a reset
*/
void (*reset)(unsigned long addr) __attribute__((noreturn));
/*
* Idle the processor
*/
int (*_do_idle)(void);
/*
* Processor architecture specific
*/
/*
* clean a virtual address range from the
* D-cache without flushing the cache.
*/
void (*dcache_clean_area)(void *addr, int size);
/*
* Set the page table
*/
void (*switch_mm)(unsigned long pgd_phys, struct mm_struct *mm);
/*
* Set a possibly extended PTE. Non-extended PTEs should
* ignore 'ext'.
*/
void (*set_pte_ext)(pte_t *ptep, pte_t pte, unsigned int ext);
} processor;
#define cpu_proc_init() processor._proc_init()
#define cpu_proc_fin() processor._proc_fin()
#define cpu_reset(addr) processor.reset(addr)
#define cpu_do_idle() processor._do_idle()
#define cpu_dcache_clean_area(addr,sz) processor.dcache_clean_area(addr,sz)
#define cpu_set_pte_ext(ptep,pte,ext) processor.set_pte_ext(ptep,pte,ext)
#define cpu_do_switch_mm(pgd,mm) processor.switch_mm(pgd,mm)