subr_physmem.c File Reference

#include <sys/cdefs.h>
#include "opt_acpi.h"
#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/physmem.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/vm_page.h>
#include <vm/vm_phys.h>
#include <vm/vm_dumpset.h>
#include <machine/md_var.h>

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Data Structures
struct	region

Macros
#define	MAX_HWCNT   16
#define	MAX_EXCNT   16

Functions
	__FBSDID ("$FreeBSD$")
static void	physmem_dump_tables (int(*prfunc)(const char *,...))
void	physmem_print_tables (void)
static size_t	regions_to_avail (vm_paddr_t *avail, uint32_t exflags, size_t maxavail, uint64_t maxphyssz, long *pavail, long *prealmem)
static size_t	merge_upper_regions (struct region *regions, size_t rcnt, size_t idx)
static size_t	insert_region (struct region *regions, size_t rcnt, vm_paddr_t addr, vm_size_t size, uint32_t flags)
void	physmem_hardware_region (uint64_t pa, uint64_t sz)
void	physmem_exclude_region (vm_paddr_t pa, vm_size_t sz, uint32_t exflags)
size_t	physmem_avail (vm_paddr_t *avail, size_t maxavail)
void	physmem_init_kernel_globals (void)

Variables
static struct region	hwregions [MAX_HWCNT]
static struct region	exregions [MAX_EXCNT]
static size_t	hwcnt
static size_t	excnt
long	realmem
long	Maxmem

Macro Definition Documentation

MAX_EXCNT

#define MAX_EXCNT   16

Definition at line 62 of file subr_physmem.c.

MAX_HWCNT

#define MAX_HWCNT   16

Definition at line 61 of file subr_physmem.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

insert_region()

static size_t insert_region ( struct region *  regions, size_t  rcnt, vm_paddr_t  addr, vm_size_t  size, uint32_t  flags  )

static

Definition at line 338 of file subr_physmem.c.

References addr, region::addr, region::flags, flags, merge_upper_regions(), and region::size.

Referenced by physmem_exclude_region(), and physmem_hardware_region().

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merge_upper_regions()

static size_t merge_upper_regions ( struct region *  regions, size_t  rcnt, size_t  idx  )

static

Definition at line 277 of file subr_physmem.c.

References addr, region::addr, region::flags, and region::size.

Referenced by insert_region().

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physmem_avail()

size_t physmem_avail	(	vm_paddr_t *	avail,
		size_t	maxavail
	)

Definition at line 465 of file subr_physmem.c.

References regions_to_avail().

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physmem_dump_tables()

static void physmem_dump_tables ( int(*)(const char *,...)  prfunc )

static

Definition at line 96 of file subr_physmem.c.

References addr, region::addr, excnt, exregions, region::flags, flags, hwcnt, hwregions, and region::size.

Referenced by physmem_print_tables().

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physmem_exclude_region()

void physmem_exclude_region	(	vm_paddr_t	pa,
		vm_size_t	sz,
		uint32_t	exflags
	)

Definition at line 446 of file subr_physmem.c.

References excnt, exregions, insert_region(), and panic().

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physmem_hardware_region()

void physmem_hardware_region	(	uint64_t	pa,
		uint64_t	sz
	)

Definition at line 394 of file subr_physmem.c.

References hwcnt, hwregions, and insert_region().

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physmem_init_kernel_globals()

void physmem_init_kernel_globals

(

void

)

Definition at line 481 of file subr_physmem.c.

References Maxmem, panic(), realmem, and regions_to_avail().

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physmem_print_tables()

void physmem_print_tables

(

void

)

Definition at line 136 of file subr_physmem.c.

References physmem_dump_tables(), and printf().

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regions_to_avail()

static size_t regions_to_avail ( vm_paddr_t *  avail, uint32_t  exflags, size_t  maxavail, uint64_t  maxphyssz, long *  pavail, long *  prealmem  )

static

Definition at line 155 of file subr_physmem.c.

References region::addr, excnt, exregions, region::flags, hwcnt, hwregions, panic(), region::size, and start.

Referenced by physmem_avail(), and physmem_init_kernel_globals().

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Variable Documentation

excnt

size_t excnt

static

Definition at line 81 of file subr_physmem.c.

Referenced by physmem_dump_tables(), physmem_exclude_region(), and regions_to_avail().

exregions

struct region exregions[MAX_EXCNT]

static

Definition at line 78 of file subr_physmem.c.

Referenced by physmem_dump_tables(), physmem_exclude_region(), and regions_to_avail().

hwcnt

size_t hwcnt

static

Definition at line 80 of file subr_physmem.c.

Referenced by physmem_dump_tables(), physmem_hardware_region(), and regions_to_avail().

hwregions

struct region hwregions[MAX_HWCNT]

static

Definition at line 77 of file subr_physmem.c.

Referenced by physmem_dump_tables(), physmem_hardware_region(), and regions_to_avail().

Maxmem

long Maxmem

Definition at line 88 of file subr_physmem.c.

Referenced by physmem_init_kernel_globals().

realmem

long realmem

Definition at line 87 of file subr_physmem.c.

Referenced by physmem_init_kernel_globals(), sysctl_hw_realmem(), and tunable_mbinit().