Differential D14266 Diff 39054 head/sys/mips/mips/pmap.c

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head/sys/mips/mips/pmap.c

Show First 20 Lines • Show All 1,153 Lines • ▼ Show 20 Lines	if (ptepindex >= NUPDE) {
vm_page_t pg;		vm_page_t pg;

pdep = &pmap->pm_segtab[segindex];		pdep = &pmap->pm_segtab[segindex];
if (*pdep == NULL) {		if (*pdep == NULL) {
/* recurse for allocating page dir */		/* recurse for allocating page dir */
if (_pmap_allocpte(pmap, NUPDE + segindex,		if (_pmap_allocpte(pmap, NUPDE + segindex,
flags) == NULL) {		flags) == NULL) {
/* alloc failed, release current */		/* alloc failed, release current */
--m->wire_count;		vm_page_unwire_noq(m);
atomic_subtract_int(&vm_cnt.v_wire_count, 1);
vm_page_free_zero(m);		vm_page_free_zero(m);
return (NULL);		return (NULL);
}		}
} else {		} else {
pg = PHYS_TO_VM_PAGE(MIPS_DIRECT_TO_PHYS(*pdep));		pg = PHYS_TO_VM_PAGE(MIPS_DIRECT_TO_PHYS(*pdep));
pg->wire_count++;		pg->wire_count++;
}		}
/* Next level entry */		/* Next level entry */
▲ Show 20 Lines • Show All 61 Lines • ▼ Show 20 Lines	pmap_release(pmap_t pmap)

KASSERT(pmap->pm_stats.resident_count == 0,		KASSERT(pmap->pm_stats.resident_count == 0,
("pmap_release: pmap resident count %ld != 0",		("pmap_release: pmap resident count %ld != 0",
pmap->pm_stats.resident_count));		pmap->pm_stats.resident_count));

ptdva = (vm_offset_t)pmap->pm_segtab;		ptdva = (vm_offset_t)pmap->pm_segtab;
ptdpg = PHYS_TO_VM_PAGE(MIPS_DIRECT_TO_PHYS(ptdva));		ptdpg = PHYS_TO_VM_PAGE(MIPS_DIRECT_TO_PHYS(ptdva));

ptdpg->wire_count--;		vm_page_unwire_noq(ptdpg);
atomic_subtract_int(&vm_cnt.v_wire_count, 1);
vm_page_free_zero(ptdpg);		vm_page_free_zero(ptdpg);
}		}

/*		/*
* grow the number of kernel page table entries, if needed		* grow the number of kernel page table entries, if needed
*/		*/
void		void
pmap_growkernel(vm_offset_t addr)		pmap_growkernel(vm_offset_t addr)
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