phys_window.h File Reference

#include <spinlock.h>
#include <type.h>

Go to the source code of this file.

Data Structures
struct	__attribute__

Typedefs
typedef int	mem_physwindow_status_t
typedef int	mem_physwindow_flag_t

Enumerations
enum	{ PHYS_WINDOW_STATUS_OK = 0 , PHYS_WINDOW_STATUS_ERROR = -1 , PHYS_WINDOW_STATUS_NOT_FOUND = -2 }
enum	{ PHYS_WINDOW_FLAG_READ = 0x1 , PHYS_WINDOW_FLAG_WRITE = 0x2 , PHYS_WINDOW_FLAG_LOCK = 0x20 }

Functions
mem_physwindow_status_t	mem_create_physwindow (uintptr_t phys_addr, uintptr_t *virt_addr, mem_physwindow_flag_t flag)
mem_physwindow_status_t	mem_release_physwindow (uintptr_t virt_addr)
mem_physwindow_t *	mem_resolve_physwindow (uintptr_t virt_addr)
	resolve a physical memory window by virtual address

Typedef Documentation

mem_physwindow_flag_t

typedef int mem_physwindow_flag_t

Definition at line 14 of file phys_window.h.

mem_physwindow_status_t

typedef int mem_physwindow_status_t

Definition at line 7 of file phys_window.h.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
PHYS_WINDOW_STATUS_OK
PHYS_WINDOW_STATUS_ERROR
PHYS_WINDOW_STATUS_NOT_FOUND

Definition at line 8 of file phys_window.h.

anonymous enum

anonymous enum

Enumerator
PHYS_WINDOW_FLAG_READ
PHYS_WINDOW_FLAG_WRITE
PHYS_WINDOW_FLAG_LOCK

Definition at line 15 of file phys_window.h.

Function Documentation

mem_create_physwindow()

mem_physwindow_status_t mem_create_physwindow	(	uintptr_t	phys_addr,
		uintptr_t *	virt_addr,
		mem_physwindow_flag_t	flag )

Definition at line 28 of file phys_window.c.

References lock, mem_vma_phys_window_start, paging_get_highest_page_map(), paging_physwindow_mmap(), phys_addr, PHYS_WINDOW_FLAG_LOCK, PHYS_WINDOW_FLAG_READ, PHYS_WINDOW_FLAG_WRITE, PHYS_WINDOW_STATUS_NOT_FOUND, PHYS_WINDOW_STATUS_OK, physical_memory_windows, and serial_trace.

Referenced by paging_create_page_directory(), paging_debug(), paging_setup(), paging_unmap_page(), and vxMmap().

mem_release_physwindow()

mem_physwindow_status_t mem_release_physwindow

(

uintptr_t

virt_addr

)

Definition at line 60 of file phys_window.c.

References PHYS_WINDOW_STATUS_NOT_FOUND, PHYS_WINDOW_STATUS_OK, physical_memory_windows, and serial_trace.

Referenced by paging_debug(), paging_setup(), paging_unmap_page(), and vxMmap().

mem_resolve_physwindow()

mem_physwindow_t * mem_resolve_physwindow

(

uintptr_t

virt_addr

)

resolve a physical memory window by virtual address

Parameters

virt_addr

the virtual address of the physical memory window

Returns

a pointer to the mem_physwindow_t structure if found, NULL otherwise

Definition at line 18 of file phys_window.c.

References physical_memory_windows.