AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity
8b6649c575
kernel_optimize_test/arch/parisc/Kconfig
Rusty Russell 98a79d6a50 cpumask: centralize cpu_online_map and cpu_possible_map 
Impact: cleanup

Each SMP arch defines these themselves.  Move them to a central
location.

Twists:
1) Some archs (m32, parisc, s390) set possible_map to all 1, so we add a
   CONFIG_INIT_ALL_POSSIBLE for this rather than break them.

2) mips and sparc32 '#define cpu_possible_map phys_cpu_present_map'.
   Those archs simply have phys_cpu_present_map replaced everywhere.

3) Alpha defined cpu_possible_map to cpu_present_map; this is tricky
   so I just manipulate them both in sync.

4) IA64, cris and m32r have gratuitous 'extern cpumask_t cpu_possible_map'
   declarations.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
Tested-by: Tony Luck <tony.luck@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Mike Travis <travis@sgi.com>
Cc: ink@jurassic.park.msu.ru
Cc: rmk@arm.linux.org.uk
Cc: starvik@axis.com
Cc: tony.luck@intel.com
Cc: takata@linux-m32r.org
Cc: ralf@linux-mips.org
Cc: grundler@parisc-linux.org
Cc: paulus@samba.org
Cc: schwidefsky@de.ibm.com
Cc: lethal@linux-sh.org
Cc: wli@holomorphy.com
Cc: davem@davemloft.net
Cc: jdike@addtoit.com
Cc: mingo@redhat.com
2008-12-13 21:19:41 +10:30

289 lines
5.8 KiB
Plaintext
Raw Blame History

#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
mainmenu "Linux/PA-RISC Kernel Configuration"
config PARISC
def_bool y
select HAVE_IDE
select HAVE_OPROFILE
select RTC_CLASS
select RTC_DRV_PARISC
select INIT_ALL_POSSIBLE
help
The PA-RISC microprocessor is designed by Hewlett-Packard and used
in many of their workstations & servers (HP9000 700 and 800 series,
and later HP3000 series). The PA-RISC Linux project home page is
at <http://www.parisc-linux.org/>.
config MMU
def_bool y
config STACK_GROWSUP
def_bool y
config GENERIC_LOCKBREAK
bool
default y
depends on SMP && PREEMPT
config RWSEM_GENERIC_SPINLOCK
def_bool y
config RWSEM_XCHGADD_ALGORITHM
bool
config ARCH_HAS_ILOG2_U32
bool
default n
config ARCH_HAS_ILOG2_U64
bool
default n
config GENERIC_FIND_NEXT_BIT
bool
default y
config GENERIC_BUG
bool
default y
depends on BUG
config GENERIC_HWEIGHT
bool
default y
config GENERIC_CALIBRATE_DELAY
bool
default y
config GENERIC_TIME
bool
default y
config TIME_LOW_RES
bool
depends on SMP
default y
config GENERIC_HARDIRQS
def_bool y
config GENERIC_IRQ_PROBE
def_bool y
config IRQ_PER_CPU
bool
default y
# unless you want to implement ACPI on PA-RISC ... ;-)
config PM
bool
config ISA_DMA_API
bool
config ARCH_MAY_HAVE_PC_FDC
bool
depends on BROKEN
default y
source "init/Kconfig"
source "kernel/Kconfig.freezer"
menu "Processor type and features"
choice
prompt "Processor type"
default PA7000
config PA7000
bool "PA7000/PA7100"
---help---
This is the processor type of your CPU. This information is
used for optimizing purposes. In order to compile a kernel
that can run on all 32-bit PA CPUs (albeit not optimally fast),
you can specify "PA7000" here.
Specifying "PA8000" here will allow you to select a 64-bit kernel
which is required on some machines.
config PA7100LC
bool "PA7100LC"
help
Select this option for the PCX-L processor, as used in the
712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
D200, D210, D300, D310 and E-class
config PA7200
bool "PA7200"
help
Select this option for the PCX-T' processor, as used in the
C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
K100, K200, K210, K220, K400, K410 and K420
config PA7300LC
bool "PA7300LC"
help
Select this option for the PCX-L2 processor, as used in the
744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
D220, D230, D320 and D330.
config PA8X00
bool "PA8000 and up"
help
Select this option for PCX-U to PCX-W2 processors.
endchoice
# Define implied options from the CPU selection here
config PA20
def_bool y
depends on PA8X00
config PA11
def_bool y
depends on PA7000 || PA7100LC || PA7200 || PA7300LC
config PREFETCH
def_bool y
depends on PA8X00 || PA7200
config 64BIT
bool "64-bit kernel"
depends on PA8X00
help
Enable this if you want to support 64bit kernel on PA-RISC platform.
At the moment, only people willing to use more than 2GB of RAM,
or having a 64bit-only capable PA-RISC machine should say Y here.
Since there is no 64bit userland on PA-RISC, there is no point to
enable this option otherwise. The 64bit kernel is significantly bigger
and slower than the 32bit one.
choice
prompt "Kernel page size"
default PARISC_PAGE_SIZE_4KB if !64BIT
default PARISC_PAGE_SIZE_4KB if 64BIT
# default PARISC_PAGE_SIZE_16KB if 64BIT
config PARISC_PAGE_SIZE_4KB
bool "4KB"
help
This lets you select the page size of the kernel. For best
performance, a page size of 16KB is recommended. For best
compatibility with 32bit applications, a page size of 4KB should be
selected (the vast majority of 32bit binaries work perfectly fine
with a larger page size).
4KB For best 32bit compatibility
16KB For best performance
64KB For best performance, might give more overhead.
If you don't know what to do, choose 4KB.
config PARISC_PAGE_SIZE_16KB
bool "16KB (EXPERIMENTAL)"
depends on PA8X00 && EXPERIMENTAL
config PARISC_PAGE_SIZE_64KB
bool "64KB (EXPERIMENTAL)"
depends on PA8X00 && EXPERIMENTAL
endchoice
config SMP
bool "Symmetric multi-processing support"
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.
If you say N here, the kernel will run on single 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
will run faster if you say N here.
See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
available at <http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
config HOTPLUG_CPU
bool
default y if SMP
select HOTPLUG
config ARCH_SELECT_MEMORY_MODEL
def_bool y
depends on 64BIT
config ARCH_DISCONTIGMEM_ENABLE
def_bool y
depends on 64BIT
config ARCH_FLATMEM_ENABLE
def_bool y
config ARCH_DISCONTIGMEM_DEFAULT
def_bool y
depends on ARCH_DISCONTIGMEM_ENABLE
config NODES_SHIFT
int
default "3"
depends on NEED_MULTIPLE_NODES
source "kernel/Kconfig.preempt"
source "kernel/Kconfig.hz"
source "mm/Kconfig"
config COMPAT
def_bool y
depends on 64BIT
config HPUX
bool "Support for HP-UX binaries"
depends on !64BIT
config NR_CPUS
int "Maximum number of CPUs (2-32)"
range 2 32
depends on SMP
default "32"
endmenu
source "drivers/parisc/Kconfig"
menu "Executable file formats"
source "fs/Kconfig.binfmt"
endmenu
source "net/Kconfig"
source "drivers/Kconfig"
source "fs/Kconfig"
source "arch/parisc/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
View Git Blame Copy Permalink