diff options
Diffstat (limited to 'arch/alpha/Kconfig')
| -rw-r--r-- | arch/alpha/Kconfig | 152 |
1 files changed, 113 insertions, 39 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 9fb8aae5c39..b7ff9a318c3 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -1,14 +1,32 @@ -# -# For a description of the syntax of this configuration file, -# see Documentation/kbuild/kconfig-language.txt. -# config ALPHA bool default y + select ARCH_MIGHT_HAVE_PC_PARPORT + select ARCH_MIGHT_HAVE_PC_SERIO select HAVE_AOUT select HAVE_IDE select HAVE_OPROFILE - select HAVE_SYSCALL_WRAPPERS + select HAVE_PCSPKR_PLATFORM + select HAVE_PERF_EVENTS + select HAVE_DMA_ATTRS + select VIRT_TO_BUS + select GENERIC_IRQ_PROBE + select AUTO_IRQ_AFFINITY if SMP + select GENERIC_IRQ_SHOW + select ARCH_WANT_OPTIONAL_GPIOLIB + select ARCH_WANT_IPC_PARSE_VERSION + select ARCH_HAVE_NMI_SAFE_CMPXCHG + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE + select AUDIT_ARCH + select GENERIC_CLOCKEVENTS + 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 help The Alpha is a 64-bit general-purpose processor designed and marketed by the Digital Equipment Corporation of blessed memory, @@ -37,10 +55,6 @@ config ARCH_HAS_ILOG2_U64 bool default n -config GENERIC_FIND_NEXT_BIT - bool - default y - config GENERIC_CALIBRATE_DELAY bool default y @@ -49,30 +63,24 @@ config ZONE_DMA bool default y -config GENERIC_ISA_DMA - bool - default y - -config GENERIC_IOMAP - bool - default n +config ARCH_DMA_ADDR_T_64BIT + def_bool y -config GENERIC_HARDIRQS - bool - default y +config NEED_DMA_MAP_STATE + def_bool y -config GENERIC_IRQ_PROBE - bool - default y +config NEED_SG_DMA_LENGTH + def_bool y -config AUTO_IRQ_AFFINITY +config GENERIC_ISA_DMA bool - depends on SMP default y source "init/Kconfig" source "kernel/Kconfig.freezer" +config AUDIT_ARCH + bool menu "System setup" @@ -120,6 +128,7 @@ choice config ALPHA_GENERIC bool "Generic" + depends on TTY help A generic kernel will run on all supported Alpha hardware. @@ -315,6 +324,7 @@ config ISA_DMA_API config PCI bool depends on !ALPHA_JENSEN + select GENERIC_PCI_IOMAP default y help Find out whether you have a PCI motherboard. PCI is the name of a @@ -441,11 +451,6 @@ config ALPHA_EV67 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_EV7 - bool - depends on ALPHA_MARVEL - default y - config ALPHA_MCPCIA bool depends on ALPHA_RAWHIDE @@ -481,15 +486,30 @@ config ALPHA_BROKEN_IRQ_MASK config VGA_HOSE bool - depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI + 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 + elimiate 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, @@ -522,16 +542,15 @@ config ARCH_MAY_HAVE_PC_FDC 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 - select USE_GENERIC_SMP_HELPERS ---help--- This enables support for systems with more than one CPU. If you have - a system with only one CPU, like most personal computers, say N. If - you have a system with more than one CPU, say Y. + 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 single and multiprocessor + 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, - singleprocessor machines. On a singleprocessor machine, the kernel + uniprocessor machines. On a uniprocessor machine, the kernel will run faster if you say N here. See also the SMP-HOWTO available at @@ -555,8 +574,7 @@ config NR_CPUS with working support have a maximum of 4 CPUs. config ARCH_DISCONTIGMEM_ENABLE - bool "Discontiguous Memory Support (EXPERIMENTAL)" - depends on EXPERIMENTAL + 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) @@ -573,6 +591,30 @@ config NUMA 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" @@ -614,9 +656,41 @@ config VERBOSE_MCHECK_ON 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 1200 if ALPHA_RAWHIDE + 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/pci/Kconfig" |