# SPDX-License-Identifier: GPL-2.0 config ALPHA bool default y select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_SERIO select ARCH_NO_PREEMPT select ARCH_USE_CMPXCHG_LOCKREF select FORCE_PCI if !ALPHA_JENSEN select PCI_DOMAINS if PCI select PCI_SYSCALL if PCI select HAVE_AOUT select HAVE_IDE select HAVE_OPROFILE select HAVE_PCSPKR_PLATFORM select HAVE_PERF_EVENTS select NEED_DMA_MAP_STATE select NEED_SG_DMA_LENGTH select VIRT_TO_BUS select GENERIC_IRQ_PROBE select GENERIC_PCI_IOMAP if PCI 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_CLOCKEVENTS select GENERIC_CPU_VULNERABILITIES select GENERIC_SMP_IDLE_THREAD select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER select HAVE_ARCH_AUDITSYSCALL select HAVE_MOD_ARCH_SPECIFIC select MODULES_USE_ELF_RELA select ODD_RT_SIGACTION select OLD_SIGSUSPEND select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 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 . config 64BIT def_bool y config MMU bool default y config RWSEM_GENERIC_SPINLOCK bool config RWSEM_XCHGADD_ALGORITHM 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 ZONE_DMA bool default y config GENERIC_ISA_DMA bool default y config PGTABLE_LEVELS int default 3 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 . In summary: Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366 Alpha-XL XL-233, XL-266 AlphaBook1 Alpha laptop Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400 Cabriolet AlphaPC64, AlphaPCI64 DP264 DP264 / DS20 / ES40 / DS10 / DS10L EB164 EB164 21164 evaluation board EB64+ EB64+ 21064 evaluation board EB66 EB66 21066 evaluation board EB66+ EB66+ 21066 evaluation board Jensen DECpc 150, DEC 2000 models 300, 500 LX164 AlphaPC164-LX Lynx AS 2100A Miata Personal Workstation 433/500/600 a/au Marvel AlphaServer ES47 / ES80 / GS1280 Mikasa AS 1000 Noname AXPpci33, UDB (Multia) 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 help A generic kernel will run on all supported Alpha hardware. config ALPHA_ALCOR bool "Alcor/Alpha-XLT" help For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data slices (Data Switch, DSW) - 208-pin PQFP and 1 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_XL bool "Alpha-XL" help XL-233 and XL-266-based Alpha systems. config ALPHA_BOOK1 bool "AlphaBook1" help Dec AlphaBook1/Burns Alpha-based laptops. config ALPHA_AVANTI_CH bool "Avanti" config ALPHA_CABRIOLET bool "Cabriolet" help Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA slots, 4 PCI slots (one pair are on a shared slot), uses plug-in Bcache SIMMs. Requires power supply with 3.3V output. 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_EB164 bool "EB164" help EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD, MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized motherboard. Requires power supply with 3.3V output. config ALPHA_EB64P_CH bool "EB64+" config ALPHA_EB66 bool "EB66" help A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is identical to EB64+. Baby PC-AT size. Runs from standard PC power supply. The EB66 schematic was published as a marketing poster advertising the 21066 as "the first microprocessor in the world with embedded PCI". config ALPHA_EB66P bool "EB66+" help Later variant of the EB66 board. 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_JENSEN bool "Jensen" depends on BROKEN select DMA_DIRECT_OPS help DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one of the first-generation Alpha systems. A number of these systems seem to be available on the second- hand market. The Jensen is a floor-standing tower system which originally used a 150MHz 21064 It used programmable logic to interface a 486 EISA I/O bridge to the CPU. config ALPHA_LX164 bool "LX164" help A technical overview of this board is available at . config ALPHA_LYNX bool "Lynx" help AlphaServer 2100A-based systems. config ALPHA_MARVEL bool "Marvel" help AlphaServer ES47 / ES80 / GS1280 based on EV7. config ALPHA_MIATA bool "Miata" help The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, or 600au). 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_NONAME_CH bool "Noname" config ALPHA_NORITAKE bool "Noritake" help AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based systems. config ALPHA_PC164 bool "PC164" config ALPHA_P2K bool "Platform2000" config ALPHA_RAWHIDE bool "Rawhide" help AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines. See HOWTO at . config ALPHA_RUFFIAN bool "Ruffian" help Samsung APC164UX. There is a page on known problems and workarounds at . config ALPHA_RX164 bool "RX164" config ALPHA_SX164 bool "SX164" config ALPHA_SABLE bool "Sable" help Digital AlphaServer 2000 and 2100-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, # and this 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 ISA_DMA_API bool default y config ALPHA_NONAME bool depends on ALPHA_BOOK1 || ALPHA_NONAME_CH default y help The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia UDB). This design was produced by Digital's Technical OEM (TOEM) group. It uses the 21066 processor running at 166MHz or 233MHz. It is a baby-AT size, and runs from a standard PC power supply. It has 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are 2 versions, with either PS/2 or large DIN connectors for the keyboard. config ALPHA_EV4 bool depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K default y if !ALPHA_LYNX config ALPHA_LCA bool depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K default y config ALPHA_APECS bool depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL default y config ALPHA_EB64P bool depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH default y help Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA, 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs. ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style), SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size. Runs from standard PC power supply. config ALPHA_EV5 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR config ALPHA_EV4 bool default y if ALPHA_LYNX && !ALPHA_EV5 config ALPHA_CIA bool depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR default y config ALPHA_EV56 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA config ALPHA_EV56 prompt "EV56 CPU (speed >= 333MHz)?" depends on ALPHA_NORITAKE || ALPHA_PRIMO config ALPHA_EV56 prompt "EV56 CPU (speed >= 400MHz)?" depends on ALPHA_RAWHIDE config ALPHA_PRIMO bool "EV5 CPU daughtercard (model 5/xxx)?" depends on ALPHA_NORITAKE || ALPHA_MIKASA help Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx. config ALPHA_GAMMA bool "EV5 CPU(s) (model 5/xxx)?" depends on ALPHA_SABLE help Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx. config ALPHA_GAMMA bool depends on ALPHA_LYNX default y config ALPHA_T2 bool depends on ALPHA_SABLE || ALPHA_LYNX 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_AVANTI bool depends on ALPHA_XL || ALPHA_AVANTI_CH default y help Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based Alphas. Info at . 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_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME depends on TTY default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || 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 . 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 EISA bool depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE default y config ARCH_MAY_HAVE_PC_FDC def_bool y config SMP bool "Symmetric multi-processing support" depends on ALPHA_SABLE || ALPHA_LYNX || 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 . If you don't know what to do here, say N. config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 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_DISCONTIGMEM_ENABLE bool "Discontiguous Memory Support" help Say Y to support efficient handling of discontiguous physical memory, for architectures which are either NUMA (Non-Uniform Memory Access) or have huge holes in the physical address space for other reasons. See for more. config NUMA bool "NUMA Support (EXPERIMENTAL)" depends on DISCONTIGMEM && BROKEN help Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option is for configuring high-end multiprocessor server machines. If in doubt, say N. config ALPHA_WTINT bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC default y if ALPHA_QEMU default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA) 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, or for 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. config NODES_SHIFT int default "7" depends on NEED_MULTIPLE_NODES # 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 bool "Verbose Machine Checks" config VERBOSE_MCHECK_ON int "Verbose Printing Mode (0=off, 1=on, 2=all)" depends on VERBOSE_MCHECK default 1 ---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 (or 1200 for Rawhide). config HZ_32 bool "32 Hz" config HZ_64 bool "64 Hz" config HZ_128 bool "128 Hz" config HZ_256 bool "256 Hz" config HZ_1024 bool "1024 Hz" config HZ_1200 bool "1200 Hz" endchoice config HZ int default 32 if HZ_32 default 64 if HZ_64 default 128 if HZ_128 default 256 if HZ_256 default 1200 if HZ_1200 default 1024 source "drivers/eisa/Kconfig" 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 (or if 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