u-boot/include/logbuff.h
Marian Balakowicz 95d449ad4d Avoid initrd and logbuffer area overlaps
Add logbuffer to reserved LMB areas to prevent initrd allocation
from overlaping with it.

Make sure to use correct logbuffer base address.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-06-03 19:34:19 +02:00

66 lines
1.8 KiB
C

/*
* (C) Copyright 2002-2007
* Detlev Zundel, dzu@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _LOGBUFF_H
#define _LOGBUFF_H
#ifdef CONFIG_LOGBUFFER
#define LOGBUFF_MAGIC 0xc0de4ced /* Forced by code, eh! */
#define LOGBUFF_LEN (16384) /* Must be 16k right now */
#define LOGBUFF_MASK (LOGBUFF_LEN-1)
#define LOGBUFF_OVERHEAD (4096) /* Logbuffer overhead for extra info */
#define LOGBUFF_RESERVE (LOGBUFF_LEN+LOGBUFF_OVERHEAD)
/* The mapping used here has to be the same as in setup_ext_logbuff ()
in linux/kernel/printk */
typedef struct {
union {
struct {
unsigned long tag;
unsigned long start;
unsigned long con;
unsigned long end;
unsigned long chars;
} v2;
struct {
unsigned long dummy;
unsigned long tag;
unsigned long start;
unsigned long size;
unsigned long chars;
} v1;
};
unsigned char buf[0];
} logbuff_t;
int drv_logbuff_init (void);
void logbuff_init_ptrs (void);
void logbuff_log(char *msg);
void logbuff_reset (void);
unsigned long logbuffer_base (void);
#endif /* CONFIG_LOGBUFFER */
#endif /* _LOGBUFF_H */