fixmap.h File Reference

#include <asm/page.h>
#include <spaces.h>

Go to the source code of this file.

Macros
#define	FIX_N_COLOURS   8
#define	FIXADDR_SIZE   (__end_of_fixed_addresses << PAGE_SHIFT)
#define	FIXADDR_START   (FIXADDR_TOP - FIXADDR_SIZE)
#define	__fix_to_virt(x)   (FIXADDR_TOP - ((x) << PAGE_SHIFT))
#define	__virt_to_fix(x)   ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
#define	kmap_get_fixmap_pte(vaddr)   pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))

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 }

Functions
void	__this_fixmap_does_not_exist (void)
void	fixrange_init (unsigned long start, unsigned long end, pgd_t *pgd_base)

Macro Definition Documentation

#define __fix_to_virt

(

x

)

(FIXADDR_TOP - ((x) << PAGE_SHIFT))

Definition at line 74 of file fixmap.h.

#define __virt_to_fix

(

x

)

((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)

Definition at line 75 of file fixmap.h.

#define FIX_N_COLOURS   8

Definition at line 49 of file fixmap.h.

#define FIXADDR_SIZE   (__end_of_fixed_addresses << PAGE_SHIFT)

Definition at line 71 of file fixmap.h.

#define FIXADDR_START   (FIXADDR_TOP - FIXADDR_SIZE)

Definition at line 72 of file fixmap.h.

#define kmap_get_fixmap_pte

(

vaddr

)

pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))

Definition at line 107 of file fixmap.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 48 of file fixmap.h.

Function Documentation

void __this_fixmap_does_not_exist

(

void

)

Definition at line 453 of file pgtable_32.c.

void fixrange_init	(	unsigned long	start,
		unsigned long	end,
		pgd_t *	pgd_base
	)

Definition at line 263 of file init.c.