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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /kernel/trunk/genarch/src/mm/page_pt.c @ 755

  → /kernel/trunk/genarch/src/mm/page_pt.c @ 756

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 755 → Rev 756

/kernel/trunk/genarch/src/mm/page_pt.c
29,6 → 29,7
#include <genarch/mm/page_pt.h>
#include <mm/page.h>
#include <mm/frame.h>
#include <mm/as.h>
#include <arch/mm/page.h>
#include <arch/mm/as.h>
#include <arch/types.h>
36,8 → 37,8
#include <arch/asm.h>
#include <memstr.h>
static void pt_mapping_insert(as_t *as, __address page, __address frame, int flags, __address root);
static pte_t *pt_mapping_find(as_t *as, __address page, __address root);
static void pt_mapping_insert(as_t *as, __address page, __address frame, int flags);
static pte_t *pt_mapping_find(as_t *as, __address page);
page_operations_t page_pt_operations = {
.mapping_insert = pt_mapping_insert,
49,18 → 50,19
* Map virtual address 'page' to physical address 'frame'
* using 'flags'.
*
* @param as Ignored.
* The address space must be locked and interrupts must be disabled.
*
* @param as Address space to wich page belongs.
* @param page Virtual address of the page to be mapped.
* @param frame Physical address of memory frame to which the mapping is done.
* @param flags Flags to be used for mapping.
* @param root Explicit PTL0 address.
*/
void pt_mapping_insert(as_t *as, __address page, __address frame, int flags, __address root)
void pt_mapping_insert(as_t *as, __address page, __address frame, int flags)
{
pte_t *ptl0, *ptl1, *ptl2, *ptl3;
__address newpt;
ptl0 = (pte_t *) PA2KA(root ? root : (__address) GET_PTL0_ADDRESS());
ptl0 = (pte_t *) PA2KA((__address) as->page_table);
if (GET_PTL1_FLAGS(ptl0, PTL0_INDEX(page)) & PAGE_NOT_PRESENT) {
newpt = frame_alloc(FRAME_KA, ONE_FRAME, NULL);
97,17 → 99,18
*
* Find mapping for virtual page.
*
* @param as Ignored.
* The address space must be locked and interrupts must be disabled.
*
* @param as Address space to which page belongs.
* @param page Virtual page.
* @param root PTL0 address if non-zero.
*
* @return NULL if there is no such mapping; entry from PTL3 describing the mapping otherwise.
*/
pte_t *pt_mapping_find(as_t *as, __address page, __address root)
pte_t *pt_mapping_find(as_t *as, __address page)
{
pte_t *ptl0, *ptl1, *ptl2, *ptl3;
ptl0 = (pte_t *) PA2KA(root ? root : (__address) GET_PTL0_ADDRESS());
ptl0 = (pte_t *) PA2KA((__address) as->page_table);
if (GET_PTL1_FLAGS(ptl0, PTL0_INDEX(page)) & PAGE_NOT_PRESENT)
return NULL;