mem-layout.h File Reference

#include <linux/const.h>

Go to the source code of this file.

Macros
#define	PAGE_OFFSET   _AC(0xc0000000, UL)
#define	LOAD_ADDRESS   0x00000000
#define	TASK_SIZE   (PAGE_OFFSET)
#define	STACK_TOP   TASK_SIZE
#define	STACK_TOP_MAX   TASK_SIZE
#define	MIN_KERNEL_SEG   0x300 /* From 0xc0000000 */
#define	VMALLOC_START
#define	VMALLOC_OFFSET   PAGE_SIZE
#define	FIXADDR_TOP   0xfe000000
#define	FIXADDR_SIZE   (__end_of_fixed_addresses << PAGE_SHIFT)
#define	FIXADDR_START   (FIXADDR_TOP - FIXADDR_SIZE)
#define	LAST_PKMAP   PTRS_PER_PTE
#define	LAST_PKMAP_MASK   (LAST_PKMAP - 1)
#define	PKMAP_NR(virt)   ((virt - PKMAP_BASE) >> PAGE_SHIFT)
#define	PKMAP_ADDR(nr)   (PKMAP_BASE + ((nr) << PAGE_SHIFT))
#define	PKMAP_BASE   (FIXADDR_START-PAGE_SIZE*LAST_PKMAP)
#define	VMALLOC_END   (PKMAP_BASE-PAGE_SIZE*2)

Enumerations
enum	fixed_addresses {   FIX_KMAP_BEGIN, FIX_KMAP_END, __end_of_fixed_addresses, FIX_HOLE,   __end_of_fixed_addresses, FIX_CMAP_BEGIN, FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * 2), __end_of_fixed_addresses,   FIX_IOREMAP_BEGIN, FIX_IOREMAP_END = FIX_IOREMAP_BEGIN + FIX_N_IOREMAPS - 1, __end_of_fixed_addresses, FIX_HOLE,   FIX_EARLY_DEBUG_TOP = FIX_HOLE, FIX_EARLY_DEBUG_BASE = FIX_EARLY_DEBUG_TOP+((128*1024)/PAGE_SIZE)-1, __end_of_fixed_addresses, FIX_CMAP_BEGIN,   FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS, __end_of_fixed_addresses, FIX_CMAP_BEGIN, FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * NR_CPUS) - 1,   __end_of_fixed_addresses, FIX_HOLE, __end_of_fixed_addresses, __end_of_permanent_fixed_addresses,   __end_of_fixed_addresses = __end_of_permanent_fixed_addresses, __end_of_fixed_addresses, VSYSCALL_LAST_PAGE, VSYSCALL_FIRST_PAGE,   VVAR_PAGE, VSYSCALL_HPET, FIX_DBGP_BASE, FIX_EARLYCON_MEM_BASE,   FIX_TEXT_POKE1, FIX_TEXT_POKE0, __end_of_permanent_fixed_addresses, FIX_BTMAP_END,   FIX_BTMAP_BEGIN = FIX_BTMAP_END + TOTAL_FIX_BTMAPS - 1, __end_of_fixed_addresses }

Variables
int	max_kernel_seg

Macro Definition Documentation

#define FIXADDR_SIZE   (__end_of_fixed_addresses << PAGE_SHIFT)

Definition at line 81 of file mem-layout.h.

#define FIXADDR_START   (FIXADDR_TOP - FIXADDR_SIZE)

Definition at line 82 of file mem-layout.h.

#define FIXADDR_TOP   0xfe000000

Definition at line 80 of file mem-layout.h.

#define LAST_PKMAP   PTRS_PER_PTE

Definition at line 89 of file mem-layout.h.

#define LAST_PKMAP_MASK   (LAST_PKMAP - 1)

Definition at line 90 of file mem-layout.h.

#define LOAD_ADDRESS   0x00000000

Definition at line 42 of file mem-layout.h.

#define MIN_KERNEL_SEG   0x300 /* From 0xc0000000 */

Definition at line 58 of file mem-layout.h.

#define PAGE_OFFSET   _AC(0xc0000000, UL)

Definition at line 32 of file mem-layout.h.

#define PKMAP_ADDR

(

nr

)

(PKMAP_BASE + ((nr) << PAGE_SHIFT))

Definition at line 92 of file mem-layout.h.

#define PKMAP_BASE   (FIXADDR_START-PAGE_SIZE*LAST_PKMAP)

Definition at line 102 of file mem-layout.h.

#define PKMAP_NR

(

virt

)

((virt - PKMAP_BASE) >> PAGE_SHIFT)

Definition at line 91 of file mem-layout.h.

#define STACK_TOP   TASK_SIZE

Definition at line 48 of file mem-layout.h.

#define STACK_TOP_MAX   TASK_SIZE

Definition at line 49 of file mem-layout.h.

#define TASK_SIZE   (PAGE_OFFSET)

Definition at line 45 of file mem-layout.h.

#define VMALLOC_END   (PKMAP_BASE-PAGE_SIZE*2)

Definition at line 108 of file mem-layout.h.

#define VMALLOC_OFFSET   PAGE_SIZE

Definition at line 70 of file mem-layout.h.

#define VMALLOC_START

Value:

(PAGE_OFFSET + VMALLOC_OFFSET + \
    (unsigned long)high_memory)

Definition at line 66 of file mem-layout.h.

Enumeration Type Documentation

enum fixed_addresses

Enumerator:

FIX_KMAP_BEGIN
FIX_KMAP_END
__end_of_fixed_addresses
FIX_HOLE
__end_of_fixed_addresses
FIX_CMAP_BEGIN
FIX_CMAP_END
__end_of_fixed_addresses
FIX_IOREMAP_BEGIN
FIX_IOREMAP_END
__end_of_fixed_addresses
FIX_HOLE
FIX_EARLY_DEBUG_TOP
FIX_EARLY_DEBUG_BASE
__end_of_fixed_addresses
FIX_CMAP_BEGIN
FIX_CMAP_END
__end_of_fixed_addresses
FIX_CMAP_BEGIN
FIX_CMAP_END
__end_of_fixed_addresses
FIX_HOLE
__end_of_fixed_addresses
__end_of_permanent_fixed_addresses
__end_of_fixed_addresses
__end_of_fixed_addresses
VSYSCALL_LAST_PAGE
VSYSCALL_FIRST_PAGE
VVAR_PAGE
VSYSCALL_HPET
FIX_DBGP_BASE
FIX_EARLYCON_MEM_BASE
FIX_TEXT_POKE1
FIX_TEXT_POKE0
__end_of_permanent_fixed_addresses
FIX_BTMAP_END
FIX_BTMAP_BEGIN
__end_of_fixed_addresses

Definition at line 52 of file mem-layout.h.

Variable Documentation

int max_kernel_seg

Definition at line 39 of file init.c.