Commit 238be91a authored by Dave Jones's avatar Dave Jones Committed by Linus Torvalds

[PATCH] Extra config.help for x86

Additional descriptions that got lost along the way somewhere.
Also updates some extra IDE options that shared the same fate.
parent 93d6132f
...@@ -386,7 +386,7 @@ CONFIG_M386 ...@@ -386,7 +386,7 @@ CONFIG_M386
will run on a 386 class machine. will run on a 386 class machine.
- "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or - "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S. SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
- "586" for generic Pentium CPUs, possibly lacking the TSC - "586" for generic Pentium CPUs lacking the TSC
(time stamp counter) register. (time stamp counter) register.
- "Pentium-Classic" for the Intel Pentium. - "Pentium-Classic" for the Intel Pentium.
- "Pentium-MMX" for the Intel Pentium MMX. - "Pentium-MMX" for the Intel Pentium MMX.
...@@ -413,12 +413,69 @@ CONFIG_M486 ...@@ -413,12 +413,69 @@ CONFIG_M486
CONFIG_M586 CONFIG_M586
Select this for an x586 or x686 processor such as the AMD K5, the Select this for an x586 or x686 processor such as the AMD K5, the
Intel 5x86 or 6x86, or the Intel 6x86MX. This choice does not Intel 5x86 or 6x86, or the Intel 6x86MX. This choice does not
assume the RDTSC instruction. assume the RDTSC (Read Time Stamp Counter) instruction.
CONFIG_M586TSC CONFIG_M586TSC
Select this for a Pentium Classic processor with the RDTSC (Read Select this for a Pentium Classic processor with the RDTSC (Read
Time Stamp Counter) instruction for benchmarking. Time Stamp Counter) instruction for benchmarking.
CONFIG_M586MMX
Select this for a Pentium with the MMX graphics/multimedia
extended instructions.
CONFIG_M686
Select this for a Pro/Celeron/Pentium II. This enables the use of
Pentium Pro extended instructions, and disables the init-time guard
against the f00f bug found in earlier Pentiums.
CONFIG_MPENTIUMIII
Select this for Intel chips based on the Pentium-III and
Celeron-Coppermine core. Enables use of some extended prefetch
instructions, in addition to the Pentium II extensions.
CONFIG_MPENTIUM4
Select this for Intel Pentium 4 chips. Presently these are
treated almost like Pentium IIIs, but with a different cache
shift.
CONFIG_MCRUSOE
Select this for Transmeta Crusoe processor. Treats the processor
like a 586 with TSC, and sets some GCC optimization flags (like a
Pentium Pro with no alignment requirements).
CONFIG_MK6
Select this for an AMD K6-family processor. Enables use of
some extended instructions, and passes appropriate optimization
flags to GCC.
CONFIG_MK7
Select this for an AMD Athlon K7-family processor. Enables use of
some extended instructions, and passes appropriate optimization
flags to GCC.
CONFIG_MCYRIXIII
Select this for a Cyrix III or C3 chip. Presently Linux and GCC
treat this chip as a generic 586. Whilst the CPU is 686 class,
it lacks the cmov extension which gcc assumes is present when
generating 686 code.
CONFIG_MWINCHIPC6
Select this for a IDT Winchip C6 chip. Linux and GCC
treat this chip as a 586TSC with some extended instructions
and alignment requirements.
CONFIG_MWINCHIP2
Select this for a IDT Winchip-2. Linux and GCC
treat this chip as a 586TSC with some extended instructions
and alignment requirements.
CONFIG_MWINCHIP3D
Select this for a IDT Winchip-2A or 3. Linux and GCC
treat this chip as a 586TSC with some extended instructions
and alignment reqirements. Development kernels also enable
out of order memory stores for this CPU, which can increase
performance of some operations.
CONFIG_VGA_CONSOLE CONFIG_VGA_CONSOLE
Saying Y here will allow you to use Linux in text mode through a Saying Y here will allow you to use Linux in text mode through a
display that complies with the generic VGA standard. Virtually display that complies with the generic VGA standard. Virtually
......
...@@ -796,3 +796,61 @@ CONFIG_BLK_DEV_TIVO ...@@ -796,3 +796,61 @@ CONFIG_BLK_DEV_TIVO
Enable vendor-specific code for TiVo IDE disks. Unless you are the Enable vendor-specific code for TiVo IDE disks. Unless you are the
IDE maintainer, you probably do not want to mess with this. IDE maintainer, you probably do not want to mess with this.
CONFIG_IDEDISK_STROKE
Should you have a system w/ an AWARD Bios and your drives are larger
than 32GB and it will not boot, one is required to perform a few OEM
operations first. The option is called "STROKE" because it allows
one to "soft clip" the drive to work around a barrier limit. For
Maxtor drives it is called "jumpon.exe". Please search Maxtor's
web-site for "JUMPON.EXE". IBM has a similar tool at:
<http://www.storage.ibm.com/hdd/support/download.htm>.
If you are unsure, say N here.
CONFIG_IDE_TASK_IOCTL
This is a direct raw access to the media. It is a complex but
elegant solution to test and validate the domain of the hardware and
perform below the driver data recovery if needed. This is the most
basic form of media-forensics.
If you are unsure, say N here.
CONFIG_BLK_DEV_IDEDMA_FORCED
This is an old piece of lost code from Linux 2.0 Kernels.
Generally say N here.
CONFIG_IDEDMA_ONLYDISK
This is used if you know your ATAPI Devices are going to fail DMA
Transfers.
Generally say N here.
CONFIG_BLK_DEV_IT8172
Say Y here to support the on-board IDE controller on the Integrated
Technology Express, Inc. ITE8172 SBC. Vendor page at
<http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
board at <http://www.mvista.com/allies/semiconductor/ite.html>.
CONFIG_IT8172_TUNING
Say Y here to support tuning the ITE8172's IDE interface. This makes
it possible to set DMA channel or PIO opration and the transfer rate.
CONFIG_IT8172_REVC
Say Y here to support the older, Revision C version of the Integrated
Technology Express, Inc. ITE8172 SBC. Vendor page at
<http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
board at <http://www.mvista.com/allies/semiconductor/ite.html>.
CONFIG_IT8172_SCR0
Say Y here to support smart-card reader 0 (SCR0) on the Integrated
Technology Express, Inc. ITE8172 SBC. Vendor page at
<http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
board at <http://www.mvista.com/allies/semiconductor/ite.html>.
CONFIG_IT8172_SCR1
Say Y here to support smart-card reader 1 (SCR1) on the Integrated
Technology Express, Inc. ITE8172 SBC. Vendor page at
<http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
board at <http://www.mvista.com/allies/semiconductor/ite.html>.
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