pmap.h File Reference

#include <stdint.h>

Include dependency graph for pmap.h:

Go to the source code of this file.

Typedefs
typedef struct pmap *	pmap_t

Functions
void	pmap_init (uintptr_t start, uintptr_t end)
pmap_t	pmap_create (void)
void	pmap_reference (pmap_t pmap)
void	pmap_destroy (pmap_t pmap)
void	pmap_remove (pmap_t pmap, uintptr_t start, uintptr_t end)
void	pmap_remove_all (uintptr_t phys)
void	pmap_copy_on_write (uintptr_t phys)
void	pmap_enter (pmap_t pmap, v, p, prot, wired)
void	pmap_protect (pmap_t map, start, end, prot)
uintptr_t	pmap_extract (pmap_t pmap, uintptr_t va)
bool	pmap_access (pmap_t pmap, uintptr_t va)
void	pmap_update (void)
void	pmap_activate (pmap_t pmap, thread, cpu)
void	pmpa_deactivate (pmap_t pmap, thread, cpu)
void	pmap_zero_page (uintptr_t phys)
void	pmap_copy_page (uintptr_t src, uintptr_t dest)

Typedef Documentation

pmap_t

typedef struct pmap* pmap_t

Function Documentation

pmap_access()

bool pmap_access	(	pmap_t	pmap,
		uintptr_t	va
	)

Report if virtual address is mapped

pmap_activate()

void pmap_activate	(	pmap_t	pmap,
		thread	,
		cpu
	)

Setup map thread to run on cpu

pmap_copy_on_write()

void pmap_copy_on_write

(

uintptr_t

phys

)

Remove write access for page from all maps (virtual copy of shared page)

pmap_copy_page()

void pmap_copy_page	(	uintptr_t	src,
		uintptr_t	dest
	)

Copy physical page. (modify/reference bit maintenance)

pmap_create()

pmap_t pmap_create

(

void

)

Create a new physical map

pmap_destroy()

void pmap_destroy

(

pmap_t

pmap

)

Deference physical map, destroy if no references remain

pmap_enter()

void pmap_enter	(	pmap_t	pmap,
		v	,
		p	,
		prot	,
		wired
	)

Enter mapping. (page fault)

pmap_extract()

uintptr_t pmap_extract	(	pmap_t	pmap,
		uintptr_t	va
	)

Convert virtual to physical.

pmap_init()

void pmap_init	(	uintptr_t	start,
		uintptr_t	end
	)

Initialize using specified range of physical address

pmap_protect()

void pmap_protect	(	pmap_t	map,
		start	,
		end	,
		prot
	)

Set the protection on the specified range of address.

pmap_reference()

void pmap_reference

(

pmap_t

pmap

)

Add a reference to a physical map

pmap_remove()

void pmap_remove	(	pmap_t	pmap,
		uintptr_t	start,
		uintptr_t	end
	)

Remove the specified range of virtual address from map. (Used in memory deallocation)

pmap_remove_all()

void pmap_remove_all

(

uintptr_t

phys

)

Remove physical page from all maps. (pageout)

pmap_update()

void pmap_update

(

void

)

Sync pmap system

pmap_zero_page()

void pmap_zero_page

(

uintptr_t

phys

)

Zero fill physical page.

pmpa_deactivate()

void pmpa_deactivate	(	pmap_t	pmap,
		thread	,
		cpu
	)

Map thread are done on cpu