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pmap(9): G/C pmap_collect, bump date.

This commit is contained in:
rmind 2009-10-21 23:33:32 +00:00
parent 3e88e8e75c
commit 12cd0447c5
1 changed files with 2 additions and 27 deletions
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29
share/man/man9/pmap.9
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@ -1,4 +1,4 @@
.\" $NetBSD: pmap.9,v 1.38 2009/08/03 22:08:57 pooka Exp $
.\" $NetBSD: pmap.9,v 1.39 2009/10/21 23:33:32 rmind Exp $
.\"
.\" Copyright (c) 2000, 2001, 2002 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -27,7 +27,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd August 3, 2009
.Dd October 22, 2009
.Dt PMAP 9
.Os
.Sh NAME
@ -79,8 +79,6 @@
.Fn "pmap_copy" "pmap_t dst_map" "pmap_t src_map" "vaddr_t dst_addr" \
"vsize_t len" "vaddr_t src_addr"
.Ft void
.Fn "pmap_collect" "pmap_t pmap"
.Ft void
.Fn "pmap_update" "pmap_t pmap"
.Ft void
.Fn "pmap_activate" "struct lwp *l"
@ -677,29 +675,6 @@ is merely advisory (it is used in the
path to
.Dq pre-fault
the child's address space).
.It void Fn "pmap_collect" "pmap_t pmap"
This function is called just before a process is swapped out to
allow the
.Nm
module to release resources used to map the process's address space.
The implementation may choose to remove physical mappings in order
to free for example page tables back to the system.
Note, however, that wired mappings must
.Em not
be removed when
.Fn pmap_collect
is called.
.Pp
Note that while this function is required to be provided by a
.Nm
implementation, it is not actually required to do anything.
.Fn pmap_collect
is merely advisory.
It is recommended, however, that
.Fn pmap_collect
be fully implemented by a
.Nm
implementation.
.It void Fn "pmap_update" "pmap_t pmap"
This function is used to inform the
.Nm