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Diffstat (limited to 'share/man/man4/man4.amd64')
| -rw-r--r-- | share/man/man4/man4.amd64/Makefile | 6 | ||||
| -rw-r--r-- | share/man/man4/man4.amd64/amas.4 | 86 |
2 files changed, 89 insertions, 3 deletions
diff --git a/share/man/man4/man4.amd64/Makefile b/share/man/man4/man4.amd64/Makefile index 929f2607146..cbc1b94a4ba 100644 --- a/share/man/man4/man4.amd64/Makefile +++ b/share/man/man4/man4.amd64/Makefile @@ -1,7 +1,7 @@ -# $OpenBSD: Makefile,v 1.10 2009/01/13 13:57:03 kettenis Exp $ +# $OpenBSD: Makefile,v 1.11 2009/04/20 13:26:19 ariane 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 +MAN= amas.4 amdpcib.4 apm.4 autoconf.4 bios.4 cpu.4 intro.4 ioapic.4 \ + mem.4 mpbios.4 mtrr.4 nvram.4 pctr.4 MLINKS+= mem.4 kmem.4 MANSUBDIR=amd64 diff --git a/share/man/man4/man4.amd64/amas.4 b/share/man/man4/man4.amd64/amas.4 new file mode 100644 index 00000000000..e446ecff9a9 --- /dev/null +++ b/share/man/man4/man4.amd64/amas.4 @@ -0,0 +1,86 @@ +.\" $OpenBSD: amas.4,v 1.1 2009/04/20 13:26:19 ariane Exp $ +.\" +.\" Copyright (c) 2009 Ariane van der Steldt <ariane@stack.nl> +.\" +.\" 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. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +.\" +.Dd $Mdocdate: April 20 2009 $ +.Dt AMAS 4 amd64 +.Os +.Sh NAME +.Nm amas +.Nd AMD memory address map +.Sh SYNOPSIS +.Cd "amas* at pci?" +.Sh DESCRIPTION +The +.Nm +driver provides read access to the AMD memory map, which describes +the location of physical memory. +.Pp +One instance of this device is shared between all cores on a chip. +This device is present on AMD processors of the 0Fh, 10h and 11h family. +.Pp +The +.Nm +device can run in either interleaved mode or in non-interleaved mode. +In interleaved mode, the physical memory addresses are rotated across +each chip. +.Nm +sits between the CPU cores, the dram controller and the hypertransport bus. +When a CPU requests a memory page, +.Nm +decides if the request is serviced from memory local to the chip, +in which case it normalizes the address and passes it on to the dram +controller. +If the request refers to memory present on a different chip, +the request is forwarded to the correct chip using the hypertransport bus. +.Pp +The +.Nm +device is configured by the BIOS and kernel startup routines. +If multiple instances of this device are available, +all should contain the same information. +.Sh SEE ALSO +.Xr pci 4 +.Rs +.%T "BIOS and Kernel Developer's Guide for AMD Athlon 64 and AMD Opteron Processors" +.%D February 2006 +.%R Publication # 26094 +.%P pp. 66\(en80 +.\" .%O http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26094.PDF +.Re +.Rs +.%T "BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h Processors" +.%D March 2008 +.%R Publication # 31116 +.%P pp. 158\(en167 +.\" .%O http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31116.PDF +.Re +.Rs +.%T "BIOS and Kernel Developer's Guide (BKDG) For AMD Family 11h Processors" +.%D July 2008 +.%R Publication # 41256 +.%P pp. 109\(en114 +.\" .%O http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/41256.pdf +.Re +.Sh HISTORY +The +.Nm +driver first appeared in +.Ox 4.6 . +.Sh AUTHORS +The +.Nm +driver was written by +.An Ariane van der Steldt Aq ariane@stack.nl . |