diff options
Diffstat (limited to 'share/man/man4/man4.i386/mtrr.4')
| -rw-r--r-- | share/man/man4/man4.i386/mtrr.4 | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/share/man/man4/man4.i386/mtrr.4 b/share/man/man4/man4.i386/mtrr.4 index 3bc42f7a2df..bafb155ec41 100644 --- a/share/man/man4/man4.i386/mtrr.4 +++ b/share/man/man4/man4.i386/mtrr.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: mtrr.4,v 1.3 1999/12/23 15:34:35 aaron Exp $ +.\" $OpenBSD: mtrr.4,v 1.4 2000/04/03 21:19:38 aaron Exp $ .\" .\" Pentium MTRR driver for OpenBSD. .\" Copyright 1999 Matthieu Herrb <matthieu@openbsd.org> @@ -19,16 +19,16 @@ .Sh DESCRIPTION The .Nm -device provides access to the memory range attributes supported by the -MTRRs on Pentiums. +device provides access to the memory range attributes supported by the +MTRRs on Pentiums. .Pp .Ss IOCTL INTERFACE Several architectures allow attributes to be associated with ranges of physical memory. These attributes can be manipulated via .Fn ioctl calls performed on -.Pa /dev/mem -or +.Pa /dev/mem +or .Pa /dev/xf86 . Declarations and data types are to be found in .Aq Pa memrange.h @@ -76,7 +76,7 @@ We believe the region to be invalid or otherwise erroneous. .It MDF_FIXACTIVE The region cannot be disabled. .It MDF_BUSY -The region is currently owned by another process and may not be +The region is currently owned by another process and may not be altered. .El .Pp @@ -98,13 +98,13 @@ descriptors. If greater than 0, the array at will be filled with a corresponding number of descriptor structures, or the maximum, whichever is less. .Pp -The +The .Fa MEMRANGE_SET ioctl is used to add, alter and remove memory range attributes. A range with the MDF_FIXACTIVE flag may not be removed; a range with the MDF_BUSY flag may not be removed or updated. .Pp -.Fa mo_arg[0] +.Fa mo_arg[0] should be set to MEMRANGE_SET_UPDATE to update an existing or establish a new range, or to MEMRANGE_SET_REMOVE to remove a range. .Pp |