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
+ select HAVE_ARCH_KGDB if !SMP || SPARC64
select HAVE_ARCH_TRACEHOOK
select ARCH_WANT_OPTIONAL_GPIOLIB
select RTC_CLASS
select RTC_DRV_M48T59
-# Identify this as a Sparc32 build
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 HAVE_SYSCALL_WRAPPERS
+ select HAVE_DYNAMIC_FTRACE
+ select HAVE_FTRACE_MCOUNT_RECORD
+ 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
- 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/>.
+
+config HAVE_SETUP_PER_CPU_AREA
+ def_bool y if SPARC64
+
+config HAVE_DYNAMIC_PER_CPU_AREA
+ def_bool y if SPARC64
+
+config GENERIC_HARDIRQS_NO__DO_IRQ
+ bool
+ def_bool y if SPARC64
config MMU
bool
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
config OF
def_bool y
+config ARCH_SUPPORTS_DEBUG_PAGEALLOC
+ def_bool y if SPARC64
+
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)"
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"
-
-source "kernel/Kconfig.hz"
+ range 2 32 if SPARC32
+ range 2 1024 if SPARC64
+ default 32 if SPARC32
+ default 64 if SPARC64
-# Global things across all Sun machines.
-config SERIAL_CONSOLE
- bool
- default y
- ---help---
- If you say Y here, it will be possible to use a serial port as the
- system console (the system console is the device which receives all
- kernel messages and warnings and which allows logins in single user
- mode). This could be useful if some terminal or printer is connected
- to that serial port.
-
- Even if you say Y here, the currently visible virtual console
- (/dev/tty0) will still be used as the system console by default, but
- you can alter that using a kernel command line option such as
- "console=ttyS1". (Try "man bootparam" or see the documentation of
- your boot loader (silo) about how to pass options to the kernel at
- boot time.)
-
- If you don't have a graphics card installed and you say Y here, the
- kernel will automatically use the first serial line, /dev/ttyS0, as
- system console.
-
- If unsure, say N.
+source kernel/Kconfig.hz
config RWSEM_GENERIC_SPINLOCK
bool
- default y
+ default y if SPARC32
config RWSEM_XCHGADD_ALGORITHM
bool
+ default y if SPARC64
config GENERIC_FIND_NEXT_BIT
bool
config GENERIC_HWEIGHT
bool
- default y
+ default y if !ULTRA_HAS_POPULATION_COUNT
config GENERIC_CALIBRATE_DELAY
bool
bool
default y
-config ARCH_HAS_ILOG2_U32
+config EMULATED_CMPXCHG
bool
- default n
+ default y if SPARC32
+ help
+ Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
+ is emulated, and therefore it is not completely atomic.
-config ARCH_HAS_ILOG2_U64
+# Makefile helpers
+config SPARC32_SMP
bool
- default n
+ default y
+ depends on SPARC32 && SMP
-config EMULATED_CMPXCHG
+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
- Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
- is emulated, and therefore it is not completely atomic.
+ This lets you select the page size of the kernel.
-config SUN_PM
- bool
+ 8KB and 64KB work quite well, since SPARC ELF sections
+ provide for up to 64KB alignment.
+
+ If you don't know what to do, choose 8KB.
+
+config SPARC64_PAGE_SIZE_64KB
+ bool "64KB"
+
+endchoice
+
+config SECCOMP
+ bool "Enable seccomp to safely compute untrusted bytecode"
+ depends on SPARC64 && PROC_FS
default y
help
- Enable power management and CPU standby features on supported
- SPARC platforms.
+ 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 SPARC_LED
- tristate "Sun4m LED driver"
+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 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
+ This adds the CPUFreq driver for UltraSPARC-III processors.
-source "mm/Kconfig"
+ For details, take a look at <file:Documentation/cpu-freq>.
-endmenu
+ If in doubt, say N.
-menu "Bus options (PCI etc.)"
-config ISA
- bool
+config US2E_FREQ
+ tristate "UltraSPARC-IIe CPU Frequency driver"
+ depends on CPU_FREQ
+ select CPU_FREQ_TABLE
help
- ISA is found on Espresso only and is not supported currently.
+ This adds the CPUFreq driver for UltraSPARC-IIe processors.
-config ISAPNP
- bool
+ 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
- ISAPNP is not supported
+ 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 EISA
+ 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
- EISA is not supported.
+ 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.
-config MCA
+ NOTE: This option WILL override the PROM bootargs setting!
+
+config SUN_PM
bool
+ default y if SPARC32
help
- MCA is not supported.
+ Enable power management and CPU standby features on supported
+ SPARC platforms.
-config PCMCIA
- tristate
+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---
- 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.
+ If you say Y here, it will be possible to use a serial port as the
+ system console (the system console is the device which receives all
+ kernel messages and warnings and which allows logins in single user
+ mode). This could be useful if some terminal or printer is connected
+ to that serial port.
+
+ Even if you say Y here, the currently visible virtual console
+ (/dev/tty0) will still be used as the system console by default, but
+ you can alter that using a kernel command line option such as
+ "console=ttyS1". (Try "man bootparam" or see the documentation of
+ your boot loader (silo) about how to pass options to the kernel at
+ boot time.)
- 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 have a graphics card installed and you say Y here, the
+ kernel will automatically use the first serial line, /dev/ttyS0, as
+ system console.
- To compile this driver as modules, choose M here: the
- modules will be called pcmcia_core and ds.
+ If unsure, say N.
+
+endmenu
+menu "Bus options (PCI etc.)"
config SBUS
bool
default y
bool
default y
-config SUN_AUXIO
- bool
- default y
-
-config SUN_IO
- bool
- default y
+config SUN_LDOMS
+ bool "Sun Logical Domains support"
+ depends on SPARC64
+ help
+ 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
Only choose N if you know in advance that you will not need to modify
OpenPROM settings on the running system.
+# Makefile helpers
+config SPARC32_PCI
+ bool
+ default y
+ depends on SPARC32 && PCI
+
+config SPARC64_PCI
+ bool
+ default y
+ depends on SPARC64 && PCI
endmenu
source "fs/Kconfig.binfmt"
+config COMPAT
+ bool
+ depends on SPARC64
+ default y
+ select COMPAT_BINFMT_ELF
+
+config SYSVIPC_COMPAT
+ bool
+ depends on COMPAT && SYSVIPC
+ default y
+
endmenu
source "net/Kconfig"
Code Review / linux-2.6.git / blobdiff