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Diffstat (limited to 'arch/alpha/Kconfig')
| -rw-r--r-- | arch/alpha/Kconfig | 529 |
1 files changed, 529 insertions, 0 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig new file mode 100644 index 000000000..e53ef2d88 --- /dev/null +++ b/arch/alpha/Kconfig @@ -0,0 +1,529 @@ +# 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_ARCH_SECCOMP + select HAVE_ARCH_SECCOMP_FILTER + select HAVE_ARCH_TRACEHOOK + select HAVE_MOD_ARCH_SPECIFIC + select LOCK_MM_AND_FIND_VMA + select MODULES_USE_ELF_RELA + select ODD_RT_SIGACTION + select OLD_SIGSUSPEND + select ARCH_STACKWALK + select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 + select MMU_GATHER_NO_RANGE + select MMU_GATHER_RCU_TABLE_FREE + select SPARSEMEM_EXTREME if SPARSEMEM + select ZONE_DMA + select TRACE_IRQFLAGS_SUPPORT + select ARCH_WANT_FRAME_POINTERS + 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 + default 3 + +config AUDIT_ARCH + bool + +config STACKTRACE_SUPPORT + def_bool y + +config LOCKDEP_SUPPORT + def_bool y + +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 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_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, + 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_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 4000 and 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 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_CIA + bool + depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE || ALPHA_MIKASA || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_ALCOR + default y + +config ALPHA_EV56 + bool + default y if ALPHA_ALCOR || ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_NORITAKE || ALPHA_MIKASA || ALPHA_RAWHIDE || ALPHA_SABLE + +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 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_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, 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. + +# 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 + +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 |