linux/include/asm-blackfin/cplb-mpu.h
Bernd Schmidt b97b8a9983 [Blackfin] arch: Initial checkin of the memory protection support.
Enable it with CONFIG_MPU.

Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-01-27 18:39:16 +08:00

61 lines
1.8 KiB
C

/*
* File: include/asm-blackfin/cplbinit.h
* Based on:
* Author:
*
* Created:
* Description:
*
* Modified:
* Copyright 2004-2006 Analog Devices Inc.
*
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see the file COPYING, or write
* to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __ASM_BFIN_CPLB_MPU_H
#define __ASM_BFIN_CPLB_MPU_H
struct cplb_entry {
unsigned long data, addr;
};
struct mem_region {
unsigned long start, end;
unsigned long dcplb_data;
unsigned long icplb_data;
};
extern struct cplb_entry dcplb_tbl[MAX_CPLBS];
extern struct cplb_entry icplb_tbl[MAX_CPLBS];
extern int first_switched_icplb;
extern int first_mask_dcplb;
extern int first_switched_dcplb;
extern int nr_dcplb_miss, nr_icplb_miss, nr_icplb_supv_miss, nr_dcplb_prot;
extern int nr_cplb_flush;
extern int page_mask_order;
extern int page_mask_nelts;
extern unsigned long *current_rwx_mask;
extern void flush_switched_cplbs(void);
extern void set_mask_dcplbs(unsigned long *);
extern void __noreturn panic_cplb_error(int seqstat, struct pt_regs *);
#endif /* __ASM_BFIN_CPLB_MPU_H */