sys/uvm/uvm_map.c

1039  * => <uobj,uoffset> value meanings (4 cases):
1040  *	 [1] <NULL,uoffset>		== uoffset is a hint for PMAP_PREFER
1042  *	 [3] <uobj,uoffset>		== normal mapping
1058     struct uvm_object *uobj, voff_t uoffset, vsize_t align, uvm_flag_t flags)
1081 	error = uvm_map_prepare(map, *startp, size, uobj, uoffset, align,
1108     struct uvm_object *uobj, voff_t uoffset, vsize_t align, uvm_flag_t flags,
1119 	    uoffset,0,0);
1174 		    uobj, uoffset, align, flags);
1219 	 * if uobj is null, then uoffset is either a VAC hint for PMAP_PREFER
1225 	 *   if uoffset is not UVM_UNKNOWN_OFFSET then we have a normal mapping
1226 	 *      and we do not need to change uoffset.
1227 	 *   if uoffset is UVM_UNKNOWN_OFFSET then we need to find the offset
1235 		uoffset = 0;
1237 		if (uoffset == UVM_UNKNOWN_OFFSET) {
1239 			uoffset = start - vm_map_min(kernel_map);
1248 	args->uma_uoffset = uoffset;
1279 	voff_t uoffset = args->uma_uoffset;
1290 	    uoffset,0,0);
1345 		    (prev_entry->end - prev_entry->start) != uoffset)
1401 		if (uobj && prev_entry->next->offset != uoffset + size)
1518 				prev_entry->next->offset = uoffset;
1551 		new_entry->offset = uoffset;
1714 uvm_map_space_avail(vaddr_t *start, vsize_t length, voff_t uoffset,
1725 	if (uoffset != UVM_UNKNOWN_OFFSET)
1726 		PMAP_PREFER(uoffset, start, length, topdown);
1775     struct uvm_object *uobj, voff_t uoffset, vsize_t align, int flags,
1782 	    " length=%#"PRIxVSIZE" uobj=%p uoffset=%#llx align=%"PRIxVSIZE
1785 	    length, uobj, (unsigned long long)uoffset, align,
1794 	    " length=%#"PRIxVSIZE" uobj=%p uoffset=%#llx align=%"PRIxVSIZE
1797 	    length, uobj, (unsigned long long)uoffset, align,
1807  * => uobj/uoffset are to be used to handle VAC alignment, if required
1816     vaddr_t *result /* OUT */, struct uvm_object *uobj, voff_t uoffset,
1820 	uvm_findspace_invariants(map, orig_hint, length, uobj, uoffset, align,\
1830 	UVMHIST_LOG(maphist, " uobj=%#jx, uoffset=%#jx, align=%#jx)",
1831 	    (uintptr_t)uobj, uoffset, align, 0);
1962 			    uoffset, align, flags, topdown, entry);
2009 	avail = uvm_map_space_avail(&hint, length, uoffset, align, flags,
2080 		avail = uvm_map_space_avail(&hint, length, uoffset, align,
2105 	avail = uvm_map_space_avail(&hint, length, uoffset, align,
2152 	avail = uvm_map_space_avail(&hint, length, uoffset, align,
2182 		avail = uvm_map_space_avail(&hint, length, uoffset, align,