physmem.c File Reference

#include <linux/module.h>
#include <linux/bootmem.h>
#include <linux/mm.h>
#include <linux/pfn.h>
#include <asm/page.h>
#include <as-layout.h>
#include <init.h>
#include <kern.h>
#include <mem_user.h>
#include <os.h>

Go to the source code of this file.

Functions
	EXPORT_SYMBOL (high_physmem)
int __init	init_maps (unsigned long physmem, unsigned long iomem, unsigned long highmem)
void	map_memory (unsigned long virt, unsigned long phys, unsigned long len, int r, int w, int x)
void __init	setup_physmem (unsigned long start, unsigned long reserve_end, unsigned long len, unsigned long long highmem)
int	phys_mapping (unsigned long phys, unsigned long long *offset_out)
	__uml_setup ("mem=", uml_mem_setup,"mem=<Amount of desired ram>\n"" This controls how much \"physical\" memory the kernel allocates\n"" for the system. The size is specified as a number followed by\n"" one of 'k', 'K', 'm', 'M', which have the obvious meanings.\n"" This is not related to the amount of memory in the host. It can\n"" be more, and the excess, if it's ever used, will just be swapped out.\n"" Example: mem=64M\n\n")
int __init	parse_iomem (char *str, int *add)
	__uml_setup ("iomem=", parse_iomem,"iomem=<name>,<file>\n"" Configure <file> as an IO memory region named <name>.\n\n")
unsigned long	find_iomem (char *driver, unsigned long *len_out)
	EXPORT_SYMBOL (find_iomem)
	__initcall (setup_iomem)

Variables
unsigned long	high_physmem
unsigned long long	physmem_size
int	__syscall_stub_start
struct iomem_region *	iomem_regions
int	iomem_size

Function Documentation

__initcall

(

setup_iomem

)

__uml_setup

(

"

mem = ", uml_mem_setup,"mem=<Amount of desired ram>\n""    This controls how much \"physical\" memory the kernel allocates\n""    for the system. The size is specified as a number followed by\n""    one of 'k', 'K', 'm', 'M', which have the obvious meanings.\n""    This is not related to the amount of memory in the host.  It can\n""    be more, and the excess, if it's ever used, will just be swapped out.\n"" Example: mem=64M\n\n"

)

__uml_setup	(	"	iomem = ", parse_iomem,"iomem=<name>,
		< file >\n""Configure< file > as an IO memory region named< name >.\n\n"
	)

EXPORT_SYMBOL

(

high_physmem

)

EXPORT_SYMBOL

(

find_iomem

)

unsigned long find_iomem	(	char *	driver,
		unsigned long *	len_out
	)

Definition at line 174 of file physmem.c.

int __init init_maps	(	unsigned long	physmem,
		unsigned long	iomem,
		unsigned long	highmem
	)

Definition at line 25 of file physmem.c.

void map_memory	(	unsigned long	virt,
		unsigned long	phys,
		unsigned long	len,
		int	r,
		int	w,
		int	x
	)

Definition at line 60 of file physmem.c.

int __init parse_iomem	(	char *	str,
		int *	add
	)

Definition at line 492 of file start_up.c.

int phys_mapping	(	unsigned long	phys,
		unsigned long long *	offset_out
	)

Definition at line 112 of file physmem.c.

void __init setup_physmem	(	unsigned long	start,
		unsigned long	reserve_end,
		unsigned long	len,
		unsigned long long	highmem
	)

Definition at line 80 of file physmem.c.

Variable Documentation

int __syscall_stub_start

unsigned long high_physmem

Definition at line 20 of file physmem.c.

struct iomem_region* iomem_regions

Definition at line 169 of file physmem.c.

int iomem_size

Definition at line 172 of file physmem.c.

unsigned long long physmem_size

Definition at line 123 of file um_arch.c.