diff options
author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2011-03-18 05:38:21 +0000 |
---|---|---|
committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2011-03-18 05:38:21 +0000 |
commit | 61764b13ae7f0a48d9f6c4f2d49c48b9cf6d102d (patch) | |
tree | 339c3140b1c5ebb375549011057ec7dd2f436514 /share/man/man4 | |
parent | 8aaa01fc1490c6957b4461028ea1d9d37b031cca (diff) |
old style mtrr interface went away
Diffstat (limited to 'share/man/man4')
-rw-r--r-- | share/man/man4/man4.amd64/Makefile | 4 | ||||
-rw-r--r-- | share/man/man4/man4.amd64/mtrr.4 | 146 |
2 files changed, 2 insertions, 148 deletions
diff --git a/share/man/man4/man4.amd64/Makefile b/share/man/man4/man4.amd64/Makefile index 87b43b4c67a..d902c4e1658 100644 --- a/share/man/man4/man4.amd64/Makefile +++ b/share/man/man4/man4.amd64/Makefile @@ -1,7 +1,7 @@ -# $OpenBSD: Makefile,v 1.12 2009/05/07 20:06:30 ariane Exp $ +# $OpenBSD: Makefile,v 1.13 2011/03/18 05:38:20 deraadt Exp $ MAN= amdpcib.4 apm.4 autoconf.4 bios.4 cpu.4 intro.4 ioapic.4 \ - mem.4 mpbios.4 mtrr.4 nvram.4 pctr.4 + mem.4 mpbios.4 nvram.4 pctr.4 MLINKS+= mem.4 kmem.4 MANSUBDIR=amd64 diff --git a/share/man/man4/man4.amd64/mtrr.4 b/share/man/man4/man4.amd64/mtrr.4 deleted file mode 100644 index 04fd1777d64..00000000000 --- a/share/man/man4/man4.amd64/mtrr.4 +++ /dev/null @@ -1,146 +0,0 @@ -.\" $OpenBSD: mtrr.4,v 1.2 2008/06/16 15:21:10 jmc Exp $ -.\" -.\" MTRR driver for OpenBSD. -.\" Copyright 1999 Matthieu Herrb <matthieu@openbsd.org> -.\" -.\" Permission to use, copy, modify, and distribute this software for any -.\" purpose with or without fee is hereby granted, provided that the above -.\" copyright notice and this permission notice appear in all copies. -.\" -.Dd $Mdocdate: June 16 2008 $ -.Dt MTRR 4 amd64 -.Os -.Sh NAME -.Nm mtrr -.Nd driver for CPU memory range attributes -.Sh SYNOPSIS -.Cd "pseudo-device mtrr 1" -.Sh DESCRIPTION -The -.Nm -device provides access to the memory range attributes supported by the -MTRRs on AMD64 compatible CPUs. -.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/xf86 . -Declarations and data types are to be found in -.Aq Pa sys/memrange.h . -.Pp -The specific attributes, and number of programmable ranges may vary between -architectures. -The full set of supported attributes is: -.Bl -tag -width MDF_WRITECOMBINE -.It Dv MDF_UNCACHEABLE -The region is not cached. -.It Dv MDF_WRITECOMBINE -Writes to the region may be combined or performed out of order. -.It Dv MDF_WRITETHROUGH -Writes to the region are committed synchronously. -.It Dv MDF_WRITEBACK -Writes to the region are committed asynchronously. -.It Dv MDF_WRITEPROTECT -The region cannot be written to. -.El -.Pp -Memory ranges are described by -.Bd -literal -offset xxxx -struct mem_range_desc { - u_int64_t mr_base; /\(** physical base address \(**/ - u_int64_t mr_len; /\(** physical length of region \(**/ - int mr_flags; /\(** attributes of region \(**/ - char mr_owner[8]; -}; -.Ed -.Pp -In addition to the region attributes listed above, the following flags -may also be set in the -.Fa mr_flags -field: -.Bl -tag -width MDF_FIXACTIVE -.It Dv MDF_FIXBASE -The region's base address cannot be changed. -.It Dv MDF_FIXLEN -The region's length cannot be changed. -.It Dv MDF_FIRMWARE -The region is believed to have been established by the system firmware. -.It Dv MDF_ACTIVE -The region is currently active. -.It Dv MDF_BOGUS -We believe the region to be invalid or otherwise erroneous. -.It Dv MDF_FIXACTIVE -The region cannot be disabled. -.It Dv MDF_BUSY -The region is currently owned by another process and may not be -altered. -.El -.Pp -Operations are performed using -.Bd -literal -offset xxxx -struct mem_range_op { - struct mem_range_desc *mo_desc; - int mo_arg[2]; -}; -.Ed -.Pp -The -.Fa MEMRANGE_GET -ioctl is used to retrieve current memory range attributes. -If -.Fa mo_arg[0] -is set to 0, it will be updated with the total number of memory range -descriptors. -If greater than 0, the array at -.Fa mo_desc -will be filled with a corresponding number of descriptor structures, -or the maximum, whichever is less. -.Pp -The -.Fa MEMRANGE_SET -ioctl is used to add, alter and remove memory range attributes. -A range with the -.Dv MDF_FIXACTIVE -flag may not be removed; a range with the -.Dv MDF_BUSY -flag may not be removed or updated. -.Pp -.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. -.Sh RETURN VALUES -.Bl -tag -width Er -.It Bq Er EOPNOTSUPP -Memory range operations are not supported on this architecture. -.It Bq Er ENXIO -No memory range descriptors are available (e.g., firmware has not enabled -any). -.It Bq Er EINVAL -The memory range supplied as an argument is invalid or overlaps another -range in a fashion not supported by this architecture. -.It Bq Er EBUSY -An attempt to remove or update a range failed because the range is busy. -.It Bq Er ENOSPC -An attempt to create a new range failed due to a shortage of hardware -resources (e.g., descriptor slots). -.It Bq Er ENOENT -An attempt to remove a range failed because no range matches the descriptor -base/length supplied. -.It Bq Er EPERM -An attempt to remove a range failed because the range is permanently -enabled. -.El -.Sh SEE ALSO -.Xr ioctl 2 , -.Xr mem 4 , -.Xr pctr 4 , -.Xr xf86 4 , -.Xr memconfig 8 -.Sh HISTORY -.Nm -support was originally included in -.Fx 3.3 . |