diff options
Diffstat (limited to 'arch/sparc/Kconfig')
| -rw-r--r-- | arch/sparc/Kconfig | 510 |
1 files changed, 367 insertions, 143 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index e594559c8db..de58c02633b 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -4,21 +4,113 @@ mainmenu "Linux/SPARC Kernel Configuration" +config 64BIT + bool "64-bit kernel" if ARCH = "sparc" + default ARCH = "sparc64" + help + SPARC is a family of RISC microprocessors designed and marketed by + Sun Microsystems, incorporated. They are very widely found in Sun + workstations and clones. + + Say yes to build a 64-bit kernel - formerly known as sparc64 + Say no to build a 32-bit kernel - formerly known as sparc + +config SPARC + bool + default y + select HAVE_IDE + select HAVE_OPROFILE + select HAVE_ARCH_KGDB if !SMP || SPARC64 + select HAVE_ARCH_TRACEHOOK + select ARCH_WANT_OPTIONAL_GPIOLIB + select RTC_CLASS + select RTC_DRV_M48T59 + +config SPARC32 + def_bool !64BIT + +config SPARC64 + def_bool 64BIT + select ARCH_SUPPORTS_MSI + select HAVE_FUNCTION_TRACER + select HAVE_KRETPROBES + select HAVE_KPROBES + select HAVE_LMB + select USE_GENERIC_SMP_HELPERS if SMP + select RTC_DRV_CMOS + select RTC_DRV_BQ4802 + select RTC_DRV_SUN4V + select RTC_DRV_STARFIRE + +config ARCH_DEFCONFIG + string + default "arch/sparc/configs/sparc32_defconfig" if SPARC32 + default "arch/sparc/configs/sparc64_defconfig" if SPARC64 + +# CONFIG_BITS can be used at source level to get 32/64 bits +config BITS + int + default 32 if SPARC32 + default 64 if SPARC64 + +config GENERIC_TIME + bool + default y if SPARC64 + +config GENERIC_CMOS_UPDATE + bool + default y if SPARC64 + +config GENERIC_CLOCKEVENTS + bool + default y if SPARC64 + +config IOMMU_HELPER + bool + default y if SPARC64 + +config QUICKLIST + bool + default y if SPARC64 + +config STACKTRACE_SUPPORT + bool + default y if SPARC64 + +config LOCKDEP_SUPPORT + bool + default y if SPARC64 + +config HAVE_LATENCYTOP_SUPPORT + bool + default y if SPARC64 + +config AUDIT_ARCH + bool + default y + +config HAVE_SETUP_PER_CPU_AREA + def_bool y if SPARC64 + +config GENERIC_HARDIRQS_NO__DO_IRQ + bool + def_bool y if SPARC64 + config MMU bool default y config HIGHMEM bool - default y + default y if SPARC32 config ZONE_DMA bool - default y + default y if SPARC32 config GENERIC_ISA_DMA bool - default y + default y if SPARC32 config GENERIC_GPIO bool @@ -31,15 +123,11 @@ config ARCH_NO_VIRT_TO_BUS config OF def_bool y -config HZ - int - default 100 - source "init/Kconfig" source "kernel/Kconfig.freezer" -menu "General machine setup" +menu "Processor type and features" config SMP bool "Symmetric multi-processing support (does not work on sun4/sun4c)" @@ -64,82 +152,261 @@ config SMP If you don't know what to do here, say N. config NR_CPUS - int "Maximum number of CPUs (2-32)" - range 2 32 + int "Maximum number of CPUs" depends on SMP - default "32" + range 2 32 if SPARC32 + range 2 1024 if SPARC64 + default 32 if SPARC32 + default 64 if SPARC64 -config SPARC +source kernel/Kconfig.hz + +config RWSEM_GENERIC_SPINLOCK + bool + default y if SPARC32 + +config RWSEM_XCHGADD_ALGORITHM + bool + default y if SPARC64 + +config GENERIC_FIND_NEXT_BIT bool default y - select HAVE_IDE - select HAVE_OPROFILE - select HAVE_ARCH_KGDB if !SMP - select HAVE_ARCH_TRACEHOOK - select ARCH_WANT_OPTIONAL_GPIOLIB - select RTC_CLASS - select RTC_DRV_M48T59 -# Identify this as a Sparc32 build -config SPARC32 +config GENERIC_HWEIGHT + bool + default y if !ULTRA_HAS_POPULATION_COUNT + +config GENERIC_CALIBRATE_DELAY bool default y - help - SPARC is a family of RISC microprocessors designed and marketed by - Sun Microsystems, incorporated. They are very widely found in Sun - workstations and clones. This port covers the original 32-bit SPARC; - it is old and stable and usually considered one of the "big three" - along with the Intel and Alpha ports. The UltraLinux project - maintains both the SPARC32 and SPARC64 ports; its web page is - available at <http://www.ultralinux.org/>. -# Global things across all Sun machines. -config ISA +config ARCH_MAY_HAVE_PC_FDC bool - help - ISA is found on Espresso only and is not supported currently. - Say N + default y -config EISA +config EMULATED_CMPXCHG bool + default y if SPARC32 help - EISA is not supported. - Say N + Sparc32 does not have a CAS instruction like sparc64. cmpxchg() + is emulated, and therefore it is not completely atomic. + +# Makefile helpers +config SPARC32_SMP + bool + default y + depends on SPARC32 && SMP -config MCA +config SPARC64_SMP bool + default y + depends on SPARC64 && SMP + +choice + prompt "Kernel page size" if SPARC64 + default SPARC64_PAGE_SIZE_8KB + +config SPARC64_PAGE_SIZE_8KB + bool "8KB" help - MCA is not supported. - Say N + This lets you select the page size of the kernel. -config PCMCIA - tristate - ---help--- - Say Y here if you want to attach PCMCIA- or PC-cards to your Linux - computer. These are credit-card size devices such as network cards, - modems or hard drives often used with laptops computers. There are - actually two varieties of these cards: the older 16 bit PCMCIA cards - and the newer 32 bit CardBus cards. If you want to use CardBus - cards, you need to say Y here and also to "CardBus support" below. + 8KB and 64KB work quite well, since SPARC ELF sections + provide for up to 64KB alignment. - To use your PC-cards, you will need supporting software from David - Hinds' pcmcia-cs package (see the file <file:Documentation/Changes> - for location). Please also read the PCMCIA-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. + If you don't know what to do, choose 8KB. - To compile this driver as modules, choose M here: the - modules will be called pcmcia_core and ds. +config SPARC64_PAGE_SIZE_64KB + bool "64KB" -config SBUS +endchoice + +config SECCOMP + bool "Enable seccomp to safely compute untrusted bytecode" + depends on SPARC64 && PROC_FS + default y + help + This kernel feature is useful for number crunching applications + that may need to compute untrusted bytecode during their + execution. By using pipes or other transports made available to + the process as file descriptors supporting the read/write + syscalls, it's possible to isolate those applications in + their own address space using seccomp. Once seccomp is + enabled via /proc/<pid>/seccomp, it cannot be disabled + and the task is only allowed to execute a few safe syscalls + defined by each seccomp mode. + + If unsure, say Y. Only embedded should say N here. + +config HOTPLUG_CPU + bool "Support for hot-pluggable CPUs" + depends on SPARC64 && SMP + select HOTPLUG + help + Say Y here to experiment with turning CPUs off and on. CPUs + can be controlled through /sys/devices/system/cpu/cpu#. + Say N if you want to disable CPU hotplug. + +config GENERIC_HARDIRQS bool + default y if SPARC64 + +source "kernel/time/Kconfig" + +if SPARC64 +source "drivers/cpufreq/Kconfig" + +config US3_FREQ + tristate "UltraSPARC-III CPU Frequency driver" + depends on CPU_FREQ + select CPU_FREQ_TABLE + help + This adds the CPUFreq driver for UltraSPARC-III processors. + + For details, take a look at <file:Documentation/cpu-freq>. + + If in doubt, say N. + +config US2E_FREQ + tristate "UltraSPARC-IIe CPU Frequency driver" + depends on CPU_FREQ + select CPU_FREQ_TABLE + help + This adds the CPUFreq driver for UltraSPARC-IIe processors. + + For details, take a look at <file:Documentation/cpu-freq>. + + If in doubt, say N. + +endif + +config US3_MC + tristate "UltraSPARC-III Memory Controller driver" + depends on SPARC64 default y + help + This adds a driver for the UltraSPARC-III memory controller. + Loading this driver allows exact mnemonic strings to be + printed in the event of a memory error, so that the faulty DIMM + on the motherboard can be matched to the error. -config SBUSCHAR + If in doubt, say Y, as this information can be very useful. + +# Global things across all Sun machines. +config GENERIC_LOCKBREAK bool default y + depends on SPARC64 && SMP && PREEMPT + +choice + prompt "SPARC64 Huge TLB Page Size" + depends on SPARC64 && HUGETLB_PAGE + default HUGETLB_PAGE_SIZE_4MB + +config HUGETLB_PAGE_SIZE_4MB + bool "4MB" + +config HUGETLB_PAGE_SIZE_512K + bool "512K" + +config HUGETLB_PAGE_SIZE_64K + depends on !SPARC64_PAGE_SIZE_64KB + bool "64K" + +endchoice + +config NUMA + bool "NUMA support" + depends on SPARC64 && SMP + +config NODES_SHIFT + int + default "4" + depends on NEED_MULTIPLE_NODES + +# Some NUMA nodes have memory ranges that span +# other nodes. Even though a pfn is valid and +# between a node's start and end pfns, it may not +# reside on that node. See memmap_init_zone() +# for details. +config NODES_SPAN_OTHER_NODES + def_bool y + depends on NEED_MULTIPLE_NODES + +config ARCH_POPULATES_NODE_MAP + def_bool y if SPARC64 + +config ARCH_SELECT_MEMORY_MODEL + def_bool y if SPARC64 + +config ARCH_SPARSEMEM_ENABLE + def_bool y if SPARC64 + select SPARSEMEM_VMEMMAP_ENABLE + +config ARCH_SPARSEMEM_DEFAULT + def_bool y if SPARC64 + +source "mm/Kconfig" + +config SCHED_SMT + bool "SMT (Hyperthreading) scheduler support" + depends on SPARC64 && SMP + default y + help + SMT scheduler support improves the CPU scheduler's decision making + when dealing with SPARC cpus at a cost of slightly increased overhead + in some places. If unsure say N here. + +config SCHED_MC + bool "Multi-core scheduler support" + depends on SPARC64 && SMP + default y + help + Multi-core scheduler support improves the CPU scheduler's decision + making when dealing with multi-core CPU chips at a cost of slightly + increased overhead in some places. If unsure say N here. + +if SPARC64 +source "kernel/Kconfig.preempt" +endif + +config CMDLINE_BOOL + bool "Default bootloader kernel arguments" + depends on SPARC64 + +config CMDLINE + string "Initial kernel command string" + depends on CMDLINE_BOOL + default "console=ttyS0,9600 root=/dev/sda1" + help + Say Y here if you want to be able to pass default arguments to + the kernel. This will be overridden by the bootloader, if you + use one (such as SILO). This is most useful if you want to boot + a kernel from TFTP, and want default options to be available + with having them passed on the command line. + + NOTE: This option WILL override the PROM bootargs setting! + +config SUN_PM + bool + default y if SPARC32 + help + Enable power management and CPU standby features on supported + SPARC platforms. + +config SPARC_LED + tristate "Sun4m LED driver" + depends on SPARC32 + help + This driver toggles the front-panel LED on sun4m systems + in a user-specifiable manner. Its state can be probed + by reading /proc/led and its blinking mode can be changed + via writes to /proc/led config SERIAL_CONSOLE bool + depends on SPARC32 default y ---help--- If you say Y here, it will be possible to use a serial port as the @@ -161,71 +428,46 @@ config SERIAL_CONSOLE If unsure, say N. -config SUN_AUXIO - bool - default y - -config SUN_IO - bool - default y - -config RWSEM_GENERIC_SPINLOCK - bool - default y - -config RWSEM_XCHGADD_ALGORITHM - bool - -config GENERIC_FIND_NEXT_BIT - bool - default y - -config GENERIC_HWEIGHT - bool - default y - -config GENERIC_CALIBRATE_DELAY - bool - default y +endmenu -config ARCH_MAY_HAVE_PC_FDC +menu "Bus options (PCI etc.)" +config SBUS bool default y -config ARCH_HAS_ILOG2_U32 - bool - default n - -config ARCH_HAS_ILOG2_U64 - bool - default n - -config EMULATED_CMPXCHG +config SBUSCHAR bool default y - help - Sparc32 does not have a CAS instruction like sparc64. cmpxchg() - is emulated, and therefore it is not completely atomic. -config SUN_PM - bool - default y +config SUN_LDOMS + bool "Sun Logical Domains support" + depends on SPARC64 help - Enable power management and CPU standby features on supported - SPARC platforms. + Say Y here is you want to support virtual devices via + Logical Domains. config PCI bool "Support for PCI and PS/2 keyboard/mouse" help + Find out whether your system includes a PCI bus. PCI is the name of + a bus system, i.e. the way the CPU talks to the other stuff inside + your box. If you say Y here, the kernel will include drivers and + infrastructure code to support PCI bus devices. + CONFIG_PCI is needed for all JavaStation's (including MrCoffee), CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. All of these platforms are extremely obscure, so say N if unsure. +config PCI_DOMAINS + def_bool PCI if SPARC64 + config PCI_SYSCALL def_bool PCI source "drivers/pci/Kconfig" +source "drivers/pcmcia/Kconfig" + config SUN_OPENPROMFS tristate "Openprom tree appears in /proc/openprom" help @@ -239,17 +481,33 @@ config SUN_OPENPROMFS Only choose N if you know in advance that you will not need to modify OpenPROM settings on the running system. -config SPARC_LED - tristate "Sun4m LED driver" - help - This driver toggles the front-panel LED on sun4m systems - in a user-specifiable manner. Its state can be probed - by reading /proc/led and its blinking mode can be changed - via writes to /proc/led +# Makefile helpers +config SPARC32_PCI + bool + default y + depends on SPARC32 && PCI + +config SPARC64_PCI + bool + default y + depends on SPARC64 && PCI + +endmenu + +menu "Executable file formats" source "fs/Kconfig.binfmt" -source "mm/Kconfig" +config COMPAT + bool + depends on SPARC64 + default y + select COMPAT_BINFMT_ELF + +config SYSVIPC_COMPAT + bool + depends on COMPAT && SYSVIPC + default y endmenu @@ -259,40 +517,6 @@ source "drivers/Kconfig" source "drivers/sbus/char/Kconfig" -# This one must be before the filesystem configs. -DaveM - -menu "Unix98 PTY support" - -config UNIX98_PTYS - bool "Unix98 PTY support" - ---help--- - A pseudo terminal (PTY) is a software device consisting of two - halves: a master and a slave. The slave device behaves identical to - a physical terminal; the master device is used by a process to - read data from and write data to the slave, thereby emulating a - terminal. Typical programs for the master side are telnet servers - and xterms. - - Linux has traditionally used the BSD-like names /dev/ptyxx for - masters and /dev/ttyxx for slaves of pseudo terminals. This scheme - has a number of problems. The GNU C library glibc 2.1 and later, - however, supports the Unix98 naming standard: in order to acquire a - pseudo terminal, a process opens /dev/ptmx; the number of the pseudo - terminal is then made available to the process and the pseudo - terminal slave can be accessed as /dev/pts/<number>. What was - traditionally /dev/ttyp2 will then be /dev/pts/2, for example. - - The entries in /dev/pts/ are created on the fly by a virtual - file system; therefore, if you say Y here you should say Y to - "/dev/pts file system for Unix98 PTYs" as well. - - If you want to say Y here, you need to have the C library glibc 2.1 - or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*"). - Read the instructions in <file:Documentation/Changes> pertaining to - pseudo terminals. It's safe to say N. - -endmenu - source "fs/Kconfig" source "arch/sparc/Kconfig.debug" |