提交 a0ae9c7c 编写于 作者: A Arnd Bergmann 提交者: Paul Mackerras

[POWERPC] Split out CPU specific options into a new Kconfig file

A lot of the options in arch/powerpc/Kconfig deal with the CPU menu,
and my next patches add more to them.  Moving them to a new
arch/powerpc/platforms/Kconfig.cputype file makes it easier to
follow.

There are no functional changes in here.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
上级 effe24bd
......@@ -4,12 +4,7 @@
mainmenu "Linux/PowerPC Kernel Configuration"
config PPC64
bool "64-bit kernel"
default n
help
This option selects whether a 32-bit or a 64-bit kernel
will be built.
source "arch/powerpc/platforms/Kconfig.cputype"
config PPC_PM_NEEDS_RTC_LIB
bool
......@@ -132,123 +127,6 @@ config PPC64_SWSUSP
depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL))
default y
menu "Processor support"
choice
prompt "Processor Type"
depends on PPC32
default 6xx
config CLASSIC32
bool "52xx/6xx/7xx/74xx"
select PPC_FPU
select 6xx
help
There are four families of PowerPC chips supported. The more common
types (601, 603, 604, 740, 750, 7400), the Motorola embedded
versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
embedded versions (403 and 405) and the high end 64 bit Power
processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
This option is the catch-all for 6xx types, including some of the
embedded versions. Unless there is see an option for the specific
chip family you are using, you want this option.
You do not want this if you are building a kernel for a 64 bit
IBM RS/6000 or an Apple G5, choose 6xx.
If unsure, select this option
Note that the kernel runs in 32-bit mode even on 64-bit chips.
config PPC_82xx
bool "Freescale 82xx"
select 6xx
select PPC_FPU
config PPC_83xx
bool "Freescale 83xx"
select 6xx
select FSL_SOC
select 83xx
select PPC_FPU
select WANT_DEVICE_TREE
config PPC_85xx
bool "Freescale 85xx"
select E500
select FSL_SOC
select 85xx
select WANT_DEVICE_TREE
config PPC_86xx
bool "Freescale 86xx"
select 6xx
select FSL_SOC
select FSL_PCIE
select PPC_FPU
select ALTIVEC
help
The Freescale E600 SoCs have 74xx cores.
config PPC_8xx
bool "Freescale 8xx"
select FSL_SOC
select 8xx
config 40x
bool "AMCC 40x"
select PPC_DCR_NATIVE
config 44x
bool "AMCC 44x"
select PPC_DCR_NATIVE
select WANT_DEVICE_TREE
config E200
bool "Freescale e200"
endchoice
config POWER4_ONLY
bool "Optimize for POWER4"
depends on PPC64
default n
---help---
Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
The resulting binary will not work on POWER3 or RS64 processors
when compiled with binutils 2.15 or later.
config POWER3
bool
depends on PPC64
default y if !POWER4_ONLY
config POWER4
depends on PPC64
def_bool y
config 6xx
bool
# this is temp to handle compat with arch=ppc
config 8xx
bool
# this is temp to handle compat with arch=ppc
config 83xx
bool
# this is temp to handle compat with arch=ppc
config 85xx
bool
config E500
bool
config PPC_FPU
bool
default y if PPC64
config PPC_DCR_NATIVE
bool
default n
......@@ -267,134 +145,6 @@ config PPC_OF_PLATFORM_PCI
depends on PPC64 # not supported on 32 bits yet
default n
config 4xx
bool
depends on 40x || 44x
default y
config BOOKE
bool
depends on E200 || E500 || 44x
default y
config FSL_BOOKE
bool
depends on E200 || E500
default y
config PTE_64BIT
bool
depends on 44x || E500
default y if 44x
default y if E500 && PHYS_64BIT
config PHYS_64BIT
bool 'Large physical address support' if E500
depends on 44x || E500
select RESOURCES_64BIT
default y if 44x
---help---
This option enables kernel support for larger than 32-bit physical
addresses. This features is not be available on all e500 cores.
If in doubt, say N here.
config ALTIVEC
bool "AltiVec Support"
depends on CLASSIC32 || POWER4
---help---
This option enables kernel support for the Altivec extensions to the
PowerPC processor. The kernel currently supports saving and restoring
altivec registers, and turning on the 'altivec enable' bit so user
processes can execute altivec instructions.
This option is only usefully if you have a processor that supports
altivec (G4, otherwise known as 74xx series), but does not have
any affect on a non-altivec cpu (it does, however add code to the
kernel).
If in doubt, say Y here.
config SPE
bool "SPE Support"
depends on E200 || E500
default y
---help---
This option enables kernel support for the Signal Processing
Extensions (SPE) to the PowerPC processor. The kernel currently
supports saving and restoring SPE registers, and turning on the
'spe enable' bit so user processes can execute SPE instructions.
This option is only useful if you have a processor that supports
SPE (e500, otherwise known as 85xx series), but does not have any
effect on a non-spe cpu (it does, however add code to the kernel).
If in doubt, say Y here.
config PPC_STD_MMU
bool
depends on 6xx || POWER3 || POWER4 || PPC64
default y
config PPC_STD_MMU_32
def_bool y
depends on PPC_STD_MMU && PPC32
config PPC_MM_SLICES
bool
default y if HUGETLB_PAGE
default n
config VIRT_CPU_ACCOUNTING
bool "Deterministic task and CPU time accounting"
depends on PPC64
default y
help
Select this option to enable more accurate task and CPU time
accounting. This is done by reading a CPU counter on each
kernel entry and exit and on transitions within the kernel
between system, softirq and hardirq state, so there is a
small performance impact. This also enables accounting of
stolen time on logically-partitioned systems running on
IBM POWER5-based machines.
If in doubt, say Y here.
config SMP
depends on PPC_STD_MMU
bool "Symmetric multi-processing support"
---help---
This enables support for systems with more than one CPU. If you have
a system with only one CPU, say N. If you have a system with more
than one CPU, say Y. Note that the kernel does not currently
support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
since they have inadequate hardware support for multiprocessor
operation.
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 single-processor machines.
On a single-processor machine, the kernel will run faster if you say
N here.
If you don't know what to do here, say N.
config NR_CPUS
int "Maximum number of CPUs (2-128)"
range 2 128
depends on SMP
default "32" if PPC64
default "4"
config NOT_COHERENT_CACHE
bool
depends on 4xx || 8xx || E200
default y
config CONFIG_CHECK_CACHE_COHERENCY
bool
endmenu
source "init/Kconfig"
source "arch/powerpc/platforms/Kconfig"
......
config PPC64
bool "64-bit kernel"
default n
help
This option selects whether a 32-bit or a 64-bit kernel
will be built.
menu "Processor support"
choice
prompt "Processor Type"
depends on PPC32
default 6xx
config CLASSIC32
bool "52xx/6xx/7xx/74xx"
select PPC_FPU
select 6xx
help
There are four families of PowerPC chips supported. The more common
types (601, 603, 604, 740, 750, 7400), the Motorola embedded
versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
embedded versions (403 and 405) and the high end 64 bit Power
processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
This option is the catch-all for 6xx types, including some of the
embedded versions. Unless there is see an option for the specific
chip family you are using, you want this option.
You do not want this if you are building a kernel for a 64 bit
IBM RS/6000 or an Apple G5, choose 6xx.
If unsure, select this option
Note that the kernel runs in 32-bit mode even on 64-bit chips.
config PPC_82xx
bool "Freescale 82xx"
select 6xx
select PPC_FPU
config PPC_83xx
bool "Freescale 83xx"
select 6xx
select FSL_SOC
select 83xx
select PPC_FPU
select WANT_DEVICE_TREE
config PPC_85xx
bool "Freescale 85xx"
select E500
select FSL_SOC
select 85xx
select WANT_DEVICE_TREE
config PPC_86xx
bool "Freescale 86xx"
select 6xx
select FSL_SOC
select FSL_PCIE
select PPC_FPU
select ALTIVEC
help
The Freescale E600 SoCs have 74xx cores.
config PPC_8xx
bool "Freescale 8xx"
select FSL_SOC
select 8xx
config 40x
bool "AMCC 40x"
select PPC_DCR_NATIVE
config 44x
bool "AMCC 44x"
select PPC_DCR_NATIVE
select WANT_DEVICE_TREE
config E200
bool "Freescale e200"
endchoice
config POWER4_ONLY
bool "Optimize for POWER4"
depends on PPC64
default n
---help---
Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
The resulting binary will not work on POWER3 or RS64 processors
when compiled with binutils 2.15 or later.
config POWER3
bool
depends on PPC64
default y if !POWER4_ONLY
config POWER4
depends on PPC64
def_bool y
config 6xx
bool
# this is temp to handle compat with arch=ppc
config 8xx
bool
# this is temp to handle compat with arch=ppc
config 83xx
bool
# this is temp to handle compat with arch=ppc
config 85xx
bool
config E500
bool
config PPC_FPU
bool
default y if PPC64
config 4xx
bool
depends on 40x || 44x
default y
config BOOKE
bool
depends on E200 || E500 || 44x
default y
config FSL_BOOKE
bool
depends on E200 || E500
default y
config PTE_64BIT
bool
depends on 44x || E500
default y if 44x
default y if E500 && PHYS_64BIT
config PHYS_64BIT
bool 'Large physical address support' if E500
depends on 44x || E500
select RESOURCES_64BIT
default y if 44x
---help---
This option enables kernel support for larger than 32-bit physical
addresses. This features is not be available on all e500 cores.
If in doubt, say N here.
config ALTIVEC
bool "AltiVec Support"
depends on CLASSIC32 || POWER4
---help---
This option enables kernel support for the Altivec extensions to the
PowerPC processor. The kernel currently supports saving and restoring
altivec registers, and turning on the 'altivec enable' bit so user
processes can execute altivec instructions.
This option is only usefully if you have a processor that supports
altivec (G4, otherwise known as 74xx series), but does not have
any affect on a non-altivec cpu (it does, however add code to the
kernel).
If in doubt, say Y here.
config SPE
bool "SPE Support"
depends on E200 || E500
default y
---help---
This option enables kernel support for the Signal Processing
Extensions (SPE) to the PowerPC processor. The kernel currently
supports saving and restoring SPE registers, and turning on the
'spe enable' bit so user processes can execute SPE instructions.
This option is only useful if you have a processor that supports
SPE (e500, otherwise known as 85xx series), but does not have any
effect on a non-spe cpu (it does, however add code to the kernel).
If in doubt, say Y here.
config PPC_STD_MMU
bool
depends on 6xx || POWER3 || POWER4 || PPC64
default y
config PPC_STD_MMU_32
def_bool y
depends on PPC_STD_MMU && PPC32
config PPC_MM_SLICES
bool
default y if HUGETLB_PAGE
default n
config VIRT_CPU_ACCOUNTING
bool "Deterministic task and CPU time accounting"
depends on PPC64
default y
help
Select this option to enable more accurate task and CPU time
accounting. This is done by reading a CPU counter on each
kernel entry and exit and on transitions within the kernel
between system, softirq and hardirq state, so there is a
small performance impact. This also enables accounting of
stolen time on logically-partitioned systems running on
IBM POWER5-based machines.
If in doubt, say Y here.
config SMP
depends on PPC_STD_MMU
bool "Symmetric multi-processing support"
---help---
This enables support for systems with more than one CPU. If you have
a system with only one CPU, say N. If you have a system with more
than one CPU, say Y. Note that the kernel does not currently
support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
since they have inadequate hardware support for multiprocessor
operation.
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 single-processor machines.
On a single-processor machine, the kernel will run faster if you say
N here.
If you don't know what to do here, say N.
config NR_CPUS
int "Maximum number of CPUs (2-128)"
range 2 128
depends on SMP
default "32" if PPC64
default "4"
config NOT_COHERENT_CACHE
bool
depends on 4xx || 8xx || E200
default y
config CONFIG_CHECK_CACHE_COHERENCY
bool
endmenu
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