Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Update pmap(9) manpage: 

- Document new flags argument for pmap_kenter_pa
- Document new flags argument for pmap_enter as well
- Document the prot argument for pmap_kenter_pa. This is copy&pasted from
  pmap_enter.
Patch showed on tech-kern@ http://mail-index.netbsd.org/tech-kern/2009/11/04/msg006436.html
Thanks to Martin Husemann for his comments to the original patch version.
This commit is contained in:
cegger 2009-11-07 07:37:46 +00:00
parent 962afef088
commit 7e7e0a568b
1 changed files with 29 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
share/man/man9/pmap.9
View File

@ -1,4 +1,4 @@
.\" $NetBSD: pmap.9,v 1.39 2009/10/21 23:33:32 rmind Exp $
.\" $NetBSD: pmap.9,v 1.40 2009/11/07 07:37:46 cegger 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 October 22, 2009
.Dd November 04, 2009
.Dt PMAP 9
.Os
.Sh NAME
@ -72,7 +72,7 @@
.Ft bool
.Fn "pmap_extract" "pmap_t pmap" "vaddr_t va" "paddr_t *pap"
.Ft void
.Fn "pmap_kenter_pa" "vaddr_t va" "paddr_t pa" "vm_prot_t prot"
.Fn "pmap_kenter_pa" "vaddr_t va" "paddr_t pa" "vm_prot_t prot" "u_int flags"
.Ft void
.Fn "pmap_kremove" "vaddr_t va" "vsize_t size"
.Ft void
@ -485,6 +485,9 @@ call is unable to create the mapping, perhaps due to insufficient
resources, the
.Nm
module must panic.
.It PMAP_NOCACHE
The mapping being created is not cached. Write accesses have a
write-through policy.
.El
.Pp
The access type provided in the
@ -602,16 +605,35 @@ into
if the
.Fa pap
argument is non-NULL.
.It void Fn "pmap_kenter_pa" "vaddr_t va" "paddr_t pa" "vm_prot_t prot"
.It void Fn "pmap_kenter_pa" "vaddr_t va" "paddr_t pa" "vm_prot_t prot" \
"u_int flags"
Enter an
.Dq unmanaged
mapping for physical address
.Fa pa
at virtual address
.Fa va
with protection
.Fa prot
into the kernel physical map.
with protection specified by bits in
.Fa prot :
.Bl -tag -width "VM_PROT_EXECUTE " -offset indent
.It VM_PROT_READ
The mapping must allow reading.
.It VM_PROT_WRITE
The mapping must allow writing.
.It VM_PROT_EXECUTE
The page mapped contains instructions that will be executed by the
processor.
.El
.Pp
Information provided by
.Fa flags :
.Bl -tag -width "PMAP_NOCACHE " -offset indent
.It PMAP_NOCACHE
The mapping being created is
.Em not
cached. Write accesses have a write-through policy.
.El
.Pp
Mappings of this type are always
.Dq wired ,
and are unaffected by routines that alter the protection of pages