# SPDX-License-Identifier: GPL-2.0
config ALPHA bool default y
select ARCH_32BIT_USTAT_F_TINODE
select ARCH_HAS_CURRENT_STACK_POINTER
select ARCH_HAS_DMA_OPS if PCI
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ARCH_MODULE_NEEDS_WEAK_PER_CPU if SMP
select ARCH_NO_PREEMPT
select ARCH_NO_SG_CHAIN
select ARCH_USE_CMPXCHG_LOCKREF
select FORCE_PCI
select PCI_DOMAINS if PCI
select PCI_SYSCALL if PCI
select HAVE_ASM_MODVERSIONS
select HAVE_PAGE_SIZE_8KB
select HAVE_PCSPKR_PLATFORM
select HAVE_PERF_EVENTS
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
select GENERIC_IRQ_PROBE
select GENERIC_PCI_IOMAP
select AUTO_IRQ_AFFINITY if SMP
select GENERIC_IRQ_SHOW
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select AUDIT_ARCH
select GENERIC_CPU_VULNERABILITIES
select GENERIC_SMP_IDLE_THREAD
select HAS_IOPORT
select HAVE_ARCH_AUDITSYSCALL
select HAVE_MOD_ARCH_SPECIFIC
select LOCK_MM_AND_FIND_VMA
select MODULES_USE_ELF_RELA
select ODD_RT_SIGACTION
select OLD_SIGSUSPEND
select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
select MMU_GATHER_NO_RANGE
select SPARSEMEM_EXTREME if SPARSEMEM
select ZONE_DMA
help
The Alpha is a 64-bit general-purpose processor designed and
marketed by the Digital Equipment Corporation of blessed memory,
now Hewlett-Packard. The Alpha Linux project has a home page at
<http://www.alphalinux.org/>.
config 64BIT
def_bool y
config MMU bool default y
config ARCH_HAS_ILOG2_U32 bool default n
config ARCH_HAS_ILOG2_U64 bool default n
config GENERIC_CALIBRATE_DELAY bool default y
config GENERIC_ISA_DMA bool default y
config PGTABLE_LEVELS int default3
config AUDIT_ARCH bool
menu "System setup"
choice
prompt "Alpha system type" default ALPHA_GENERIC
help This is the system type of your hardware. A "generic" kernel will
run on any supported Alpha system. However, if you configure a
kernel for your specific system, it will be faster and smaller.
To find out what type of Alpha system you have, you may want to
check out the Linux/Alpha FAQ, accessible on the WWW from
<http://www.alphalinux.org/>. In summary:
Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
DP264 DP264 / DS20 / ES40 / DS10 / DS10L
LX164 AlphaPC164-LX
Miata Personal Workstation 433/500/600 a/au
Marvel AlphaServer ES47 / ES80 / GS1280
Mikasa AS 1000
Noritake AS 1000A, AS 600A, AS 800
PC164 AlphaPC164
Rawhide AS 1200, AS 4000, AS 4100
Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
SX164 AlphaPC164-SX
Sable AS 2000, AS 2100
Shark DS 20L
Takara Takara (OEM)
Titan AlphaServer ES45 / DS25 / DS15
Wildfire AlphaServer GS 40/80/160/320
If you don't know what to do, choose "generic".
config ALPHA_GENERIC bool"Generic"
depends on TTY
select HAVE_EISA
help
A generic kernel will run on all supported Alpha hardware.
config ALPHA_ALCOR bool"Alcor/Alpha-XLT"
select HAVE_EISA
help For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
slices (Data Switch, DSW) - 208-pin PQFP and1 control (Control, I/O
Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
controller (256-bit memory bus) and a PCI interface. It also does
all the work required to support an external Bcache and to maintain
memory coherence when a PCI device DMAs into (or out of) memory.
config ALPHA_DP264 bool"DP264"
help
Various 21264 systems with the tsunami core logic chipset.
API Networks: 264DP, UP2000(+), CS20;
Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
config ALPHA_EIGER bool"Eiger"
help
Apparently an obscure OEM single-board computer based on the
Typhoon/Tsunami chipset family. Information on it is scanty.
config ALPHA_LX164 bool"LX164"
help
A technical overview of this board is available at
<http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
config ALPHA_MARVEL bool"Marvel"
help
AlphaServer ES47 / ES80 / GS1280 based on EV7.
config ALPHA_MIATA bool"Miata"
select HAVE_EISA
help
The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, or600au).
config ALPHA_MIKASA bool"Mikasa"
help
AlphaServer 1000-based Alpha systems.
config ALPHA_NAUTILUS bool"Nautilus"
help
Alpha systems based on the AMD 751 & ALI 1543C chipsets.
config ALPHA_NORITAKE bool"Noritake"
select HAVE_EISA
help
AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
systems.
config ALPHA_PC164 bool"PC164"
config ALPHA_RAWHIDE bool"Rawhide"
select HAVE_EISA
help
AlphaServer 1200, AlphaServer 4000and AlphaServer 4100 machines.
See HOWTO at
<http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
config ALPHA_RUFFIAN bool"Ruffian"
help
Samsung APC164UX. There is a page on known problems and workarounds
at <http://www.alphalinux.org/faq/FAQ-11.html>.
config ALPHA_RX164 bool"RX164"
config ALPHA_SX164 bool"SX164"
config ALPHA_SABLE bool"Sable"
select HAVE_EISA
help
Digital AlphaServer 2000and2100-based systems.
config ALPHA_SHARK bool"Shark"
config ALPHA_TAKARA bool"Takara"
help
Alpha 11164-based OEM single-board computer.
config ALPHA_TITAN bool"Titan"
help
AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
config ALPHA_WILDFIRE bool"Wildfire"
help
AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
endchoice
# clear all implied options (don't want default values for those): # Most of these machines have ISA slots; not exactly sure which don't, # andthis doesn't activate hordes of code, so do it always.
config ISA bool default y
help
Find out whether you have ISA slots on your motherboard. ISA is the
name of a bus system, i.e. the way the CPU talks to the other stuff
inside your box. Other bus systems are PCI, EISA, MicroChannel
(MCA) or VESA. ISA is an older system, now being displaced by PCI;
newer boards don't support it. If you have ISA, say Y, otherwise N.
config ALPHA_T2 bool
depends on ALPHA_SABLE default y
config ALPHA_PYXIS bool
depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN default y
config ALPHA_EV6 bool
depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL default y
config ALPHA_TSUNAMI bool
depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER default y
config ALPHA_EV67 bool"EV67 (or later) CPU (speed > 600MHz)?"if ALPHA_DP264 || ALPHA_EIGER default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
help
Is this a machine based on the EV67 core? If in doubt, select N here and the machine will be treated as an EV6.
config ALPHA_MCPCIA bool
depends on ALPHA_RAWHIDE default y
config ALPHA_POLARIS bool
depends on ALPHA_RX164 default y
config ALPHA_IRONGATE bool
depends on ALPHA_NAUTILUS default y
config GENERIC_HWEIGHT bool default y if !ALPHA_EV67
config ALPHA_BROKEN_IRQ_MASK bool
depends on ALPHA_GENERIC || ALPHA_PC164 default y
config VGA_HOSE bool
depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI) default y
help
Support VGA on an arbitrary hose; needed for several platforms
which always have multiple hoses, and whose consoles support it.
config ALPHA_QEMU bool"Run under QEMU emulation"
depends on !ALPHA_GENERIC
help
Assume the presence of special features supported by QEMU PALcode
that reduce the overhead of system emulation.
Generic kernels will auto-detect QEMU. But when building a
system-specific kernel, the assumption is that we want to
eliminate as many runtime tests as possible.
If unsure, say N.
config ALPHA_SRM bool"Use SRM as bootloader"if ALPHA_PC164 || ALPHA_TAKARA || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS
depends on TTY default y if ALPHA_MIKASA || ALPHA_SABLE || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
help
There are two different types of booting firmware on Alphas: SRM,
which is command line driven, and ARC, which uses menus and arrow
keys. Details about the Linux/Alpha booting process are contained in
the Linux/Alpha FAQ, accessible on the WWW from
<http://www.alphalinux.org/>.
The usual way to load Linux on an Alpha machine is to use MILO
(a bootloader that lets you pass command line parameters to the
kernel just like lilo does for the x86 architecture) which can be
loaded either from ARC or can be installed directly as a permanent
firmware replacement from floppy (which requires changing a certain
jumper on the motherboard). If you want to do either of these, say N
here. If MILO doesn't work on your system (true for Jensen
motherboards), you can bypass it altogether and boot Linux directly
from an SRM console; say Y here in order to do that. Note that you
won't be able to boot from an IDE disk using SRM.
If unsure, say N.
config ARCH_MAY_HAVE_PC_FDC
def_bool y
config SMP bool"Symmetric multi-processing support"
depends on ALPHA_SABLE || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
help This enables support for systems with more than one CPU. If you have
a system with only one CPU, say N. If you have a system with more
than one CPU, say Y.
If you say N here, the kernel will run on uni- and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on many, but not all,
uniprocessor machines. On a uniprocessor machine, the kernel
will run faster if you say N here.
See also the SMP-HOWTO available at
<https://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
config NR_CPUS int"Maximum number of CPUs (2-32)"
range 232
depends on SMP default"32"if ALPHA_GENERIC || ALPHA_MARVEL default"4"if !ALPHA_GENERIC && !ALPHA_MARVEL
help
MARVEL support can handle a maximum of 32 CPUs, all the others
with working support have a maximum of 4 CPUs.
config ARCH_SPARSEMEM_ENABLE bool"Sparse Memory Support"
help
Say Y to support efficient handling of discontiguous physical memory, for systems that have huge holes in the physical address space.
config ALPHA_WTINT bool"Use WTINT"if ALPHA_SRM || ALPHA_GENERIC default y if ALPHA_QEMU default n if ALPHA_EV56 default n if !ALPHA_SRM && !ALPHA_GENERIC default y if SMP
help
The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
to sleep until the next interrupt. This may reduce the power
consumed, and the heat produced by the computer. However, it has
the side effect of making the cycle counter unreliable as a timing
device across the sleep.
For emulation under QEMU, definitely say Y here, as we have other
mechanisms for measuring time than the cycle counter.
For EV4 (but not LCA), EV5 and EV56 systems, orfor systems running
MILO, sleep mode is not supported so you might as well say N here.
For SMP systems we cannot use the cycle counter for timing anyway,
so you might as well say Y here.
If unsure, say N.
# LARGE_VMALLOC is racy, if you *really* need it then fix it first
config ALPHA_LARGE_VMALLOC bool
help
Process creation and other aspects of virtual memory management can
be streamlined if we restrict the kernel to one PGD for all vmalloc
allocations. This equates to about 8GB.
Under normal circumstances, this is so far and above what is needed
as to be laughable. However, there are certain applications (such
as benchmark-grade in-kernel web serving) that can make use of as
much vmalloc space as is available.
Say N unless you know you need gobs and gobs of vmalloc space.
config VERBOSE_MCHECK_ON int"Verbose Printing Mode (0=off, 1=on, 2=all)"
depends on VERBOSE_MCHECK default1
help This option allows the default printing mode to be set, and then
possibly overridden by a boot command argument.
For example, if one wanted the option of printing verbose
machine checks, but wanted the default to be as if verbose
machine check printing was turned off, then one would choose
the printing mode to be 0. Then, upon reboot, one could add
the boot command line "verbose_mcheck=1" to get the normal
verbose machine check printing, or"verbose_mcheck=2" to get
the maximum information available.
Take the default (1) unless you want more control or more info.
choice
prompt "Timer interrupt frequency (HZ)?" default HZ_128 if ALPHA_QEMU default HZ_1200 if ALPHA_RAWHIDE default HZ_1024
help
The frequency at which timer interrupts occur. A high frequency
minimizes latency, whereas a low frequency minimizes overhead of
process accounting. The later effect is especially significant
when being run under QEMU.
Note that some Alpha hardware cannot change the interrupt frequency
of the timer. If unsure, say 1024 (or1200for Rawhide).
config SRM_ENV
tristate "SRM environment through procfs"
depends on PROC_FS
help If you enable this option, a subdirectory inside /proc called
/proc/srm_environment will give you access to the all important
SRM environment variables (those which have a name) and also
to all others (by their internal number).
SRM is something like a BIOS for Alpha machines. There are some
other such BIOSes, like AlphaBIOS, which this driver cannot
support (hey, that's not SRM!).
Despite the fact that this driver doesn't work on all Alphas (but
only on those which have SRM as their firmware), it's save to
build it even if your particular machine doesn't know about SRM
(orif you intend to compile a generic kernel). It will simply not create those subdirectory in /proc (and give you some warning,
of course).
This driver is also available as a module and will be called
srm_env then.
endmenu
# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig # but we also need it if VGA_HOSE is set
config DUMMY_CONSOLE bool
depends on VGA_HOSE default y
Messung V0.5 in Prozent
[Dauer der Verarbeitung: 0.21 Sekunden, vorverarbeitet 2026-06-08]