linux-stable-rt/arch/um/kernel/tt/mem.c

52 lines
1.3 KiB
C

/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#include "linux/stddef.h"
#include "linux/config.h"
#include "linux/mm.h"
#include "asm/uaccess.h"
#include "mem_user.h"
#include "kern_util.h"
#include "user_util.h"
#include "kern.h"
#include "tt.h"
void before_mem_tt(unsigned long brk_start)
{
if(debug)
remap_data(UML_ROUND_DOWN(&_stext), UML_ROUND_UP(&_etext), 1);
remap_data(UML_ROUND_DOWN(&_sdata), UML_ROUND_UP(&_edata), 1);
remap_data(UML_ROUND_DOWN(&__bss_start), UML_ROUND_UP(&_end), 1);
}
#ifdef CONFIG_HOST_2G_2G
#define TOP 0x80000000
#else
#define TOP 0xc0000000
#endif
#define SIZE ((CONFIG_NEST_LEVEL + CONFIG_KERNEL_HALF_GIGS) * 0x20000000)
#define START (TOP - SIZE)
unsigned long set_task_sizes_tt(int arg, unsigned long *host_size_out,
unsigned long *task_size_out)
{
/* Round up to the nearest 4M */
*host_size_out = ROUND_4M((unsigned long) &arg);
*task_size_out = START;
return(START);
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/