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linux/arch/v850/Kconfig
Christoph Lameter 0aa817f078 Slab allocators: define common size limitations 
Currently we have a maze of configuration variables that determine the
maximum slab size.  Worst of all it seems to vary between SLAB and SLUB.

So define a common maximum size for kmalloc.  For conveniences sake we use
the maximum size ever supported which is 32 MB.  We limit the maximum size
to a lower limit if MAX_ORDER does not allow such large allocations.

For many architectures this patch will have the effect of adding large
kmalloc sizes.  x86_64 adds 5 new kmalloc sizes.  So a small amount of
memory will be needed for these caches (contemporary SLAB has dynamically
sizeable node and cpu structure so the waste is less than in the past)

Most architectures will then be able to allocate object with sizes up to
MAX_ORDER.  We have had repeated breakage (in fact whenever we doubled the
number of supported processors) on IA64 because one or the other struct
grew beyond what the slab allocators supported.  This will avoid future
issues and f.e.  avoid fixes for 2k and 4k cpu support.

CONFIG_LARGE_ALLOCS is no longer necessary so drop it.

It fixes sparc64 with SLAB.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-17 05:23:04 -07:00

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#############################################################################
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
#############################################################################
mainmenu "uClinux/v850 (w/o MMU) Kernel Configuration"
config MMU
bool
default n
config ZONE_DMA
bool
default y
config RWSEM_GENERIC_SPINLOCK
bool
default y
config RWSEM_XCHGADD_ALGORITHM
bool
default n
config GENERIC_FIND_NEXT_BIT
bool
default y
config GENERIC_HWEIGHT
bool
default y
config GENERIC_CALIBRATE_DELAY
bool
default y
config GENERIC_HARDIRQS
bool
default y
config GENERIC_IRQ_PROBE
bool
default y
config GENERIC_TIME
bool
default y
config TIME_LOW_RES
bool
default y
config ARCH_HAS_ILOG2_U32
bool
default n
config ARCH_HAS_ILOG2_U64
bool
default n
# Turn off some random 386 crap that can affect device config
config ISA
bool
default n
config ISAPNP
bool
default n
config EISA
bool
default n
config MCA
bool
default n
#############################################################################
#### v850-specific config
# Define the architecture
config V850
bool
default y
menu "Processor type and features"
choice
prompt "Platform"
default GDB
config V850E_SIM
bool "GDB"
config RTE_CB_MA1
bool "RTE-V850E/MA1-CB"
config RTE_CB_NB85E
bool "RTE-V850E/NB85E-CB"
config RTE_CB_ME2
bool "RTE-V850E/ME2-CB"
config V850E_AS85EP1
bool "AS85EP1"
config V850E2_SIM85E2C
bool "sim85e2c"
config V850E2_SIM85E2S
bool "sim85e2s"
config V850E2_FPGA85E2C
bool "NA85E2C-FPGA"
config V850E2_ANNA
bool "Anna"
endchoice
#### V850E processor-specific config
# All CPUs currently supported use the v850e architecture
config V850E
bool
default y
# The RTE-V850E/MA1-CB is the only type of V850E/MA1 platform we
# currently support
config V850E_MA1
bool
depends on RTE_CB_MA1
default y
# Similarly for the RTE-V850E/NB85E-CB - V850E/TEG
config V850E_TEG
bool
depends on RTE_CB_NB85E
default y
# ... and the RTE-V850E/ME2-CB - V850E/ME2
config V850E_ME2
bool
depends on RTE_CB_ME2
default y
#### sim85e2-specific config
config V850E2_SIM85E2
bool
depends on V850E2_SIM85E2C || V850E2_SIM85E2S
default y
#### V850E2 processor-specific config
# V850E2 processors
config V850E2
bool
depends on V850E2_SIM85E2 || V850E2_FPGA85E2C || V850E2_ANNA
default y
#### RTE-CB platform-specific config
# Boards in the RTE-x-CB series
config RTE_CB
bool
depends on RTE_CB_MA1 || RTE_CB_NB85E || RTE_CB_ME2
default y
config RTE_CB_MULTI
bool
# RTE_CB_NB85E can either have multi ROM support or not, but
# other platforms (currently only RTE_CB_MA1) require it.
prompt "Multi monitor ROM support" if RTE_CB_NB85E
depends on RTE_CB_MA1 || RTE_CB_NB85E
default y
config RTE_CB_MULTI_DBTRAP
bool "Pass illegal insn trap / dbtrap to kernel"
depends on RTE_CB_MULTI
default n
config RTE_CB_MA1_KSRAM
bool "Kernel in SRAM (limits size of kernel)"
depends on RTE_CB_MA1 && RTE_CB_MULTI
default n
config RTE_MB_A_PCI
bool "Mother-A PCI support"
depends on RTE_CB
default y
# The GBUS is used to talk to the RTE-MOTHER-A board
config RTE_GBUS_INT
bool
depends on RTE_MB_A_PCI
default y
# The only PCI bus we support is on the RTE-MOTHER-A board
config PCI
bool
default RTE_MB_A_PCI
#### Some feature-specific configs
# Everything except for the GDB simulator uses the same interrupt controller
config V850E_INTC
bool
default !V850E_SIM
# Everything except for the various simulators uses the "Timer D" unit
config V850E_TIMER_D
bool
default !V850E_SIM && !V850E2_SIM85E2
# Cache control used on some v850e1 processors
config V850E_CACHE
bool
default V850E_TEG || V850E_ME2
# Cache control used on v850e2 processors; I think this should
# actually apply to more, but currently only the SIM85E2S uses it
config V850E2_CACHE
bool
default V850E2_SIM85E2S
config NO_CACHE
bool
default !V850E_CACHE && !V850E2_CACHE
#### Misc config
config ROM_KERNEL
bool "Kernel in ROM"
depends on V850E2_ANNA || V850E_AS85EP1 || RTE_CB_ME2
# Some platforms pre-zero memory, in which case the kernel doesn't need to
config ZERO_BSS
bool
depends on !V850E2_SIM85E2C
default y
# The crappy-ass zone allocator requires that the start of allocatable
# memory be aligned to the largest possible allocation.
config FORCE_MAX_ZONEORDER
int
default 8 if V850E2_SIM85E2C || V850E2_FPGA85E2C
config V850E_HIGHRES_TIMER
bool "High resolution timer support"
depends on V850E_TIMER_D
config TIME_BOOTUP
bool "Time bootup"
depends on V850E_HIGHRES_TIMER
config RESET_GUARD
bool "Reset Guard"
source "mm/Kconfig"
endmenu
#############################################################################
source init/Kconfig
#############################################################################
menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
# config PCI
# bool "PCI support"
# help
# Support for PCI bus.
source "drivers/pci/Kconfig"
source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig"
endmenu
menu "Executable file formats"
source "fs/Kconfig.binfmt"
endmenu
source "net/Kconfig"
#############################################################################
source "drivers/base/Kconfig"
source drivers/mtd/Kconfig
source drivers/parport/Kconfig
#source drivers/pnp/Kconfig
source drivers/block/Kconfig
#############################################################################
menu "Disk device support"
source "drivers/ide/Kconfig"
source "drivers/scsi/Kconfig"
endmenu
#############################################################################
source "drivers/md/Kconfig"
source "drivers/message/fusion/Kconfig"
source "drivers/ieee1394/Kconfig"
source "drivers/message/i2o/Kconfig"
source "drivers/net/Kconfig"
source "drivers/isdn/Kconfig"
#source "drivers/telephony/Kconfig"
#
# input before char - char/joystick depends on it. As does USB.
#
source "drivers/input/Kconfig"
source "drivers/char/Kconfig"
#source drivers/misc/Config.in
source "drivers/media/Kconfig"
source "fs/Kconfig"
source "drivers/video/Kconfig"
source "sound/Kconfig"
source "drivers/usb/Kconfig"
source "arch/v850/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
#############################################################################
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