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authorroot <root@artemis.panaceas.org>2015-12-25 04:40:36 +0000
committerroot <root@artemis.panaceas.org>2015-12-25 04:40:36 +0000
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+config PPC64
+ bool "64-bit kernel"
+ default n
+ select PPC_HAVE_PMU_SUPPORT
+ 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
+ help
+ There are five families of 32 bit PowerPC chips supported.
+ The most common ones are the desktop and server CPUs (601, 603,
+ 604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
+ embedded 512x/52xx/82xx/83xx/86xx counterparts.
+ The other embeeded parts, namely 4xx, 8xx, e200 (55xx) and e500
+ (85xx) each form a family of their own that is not compatible
+ with the others.
+
+ If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
+
+config PPC_BOOK3S_32
+ bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
+ select PPC_FPU
+
+config PPC_85xx
+ bool "Freescale 85xx"
+ select E500
+
+config PPC_8xx
+ bool "Freescale 8xx"
+ select FSL_SOC
+ select 8xx
+ select PPC_LIB_RHEAP
+
+config 40x
+ bool "AMCC 40x"
+ select PPC_DCR_NATIVE
+ select PPC_UDBG_16550
+ select 4xx_SOC
+ select PPC_PCI_CHOICE
+
+config 44x
+ bool "AMCC 44x, 46x or 47x"
+ select PPC_DCR_NATIVE
+ select PPC_UDBG_16550
+ select 4xx_SOC
+ select PPC_PCI_CHOICE
+ select PHYS_64BIT
+
+config E200
+ bool "Freescale e200"
+
+endchoice
+
+choice
+ prompt "Processor Type"
+ depends on PPC64
+ help
+ There are two families of 64 bit PowerPC chips supported.
+ The most common ones are the desktop and server CPUs
+ (POWER3, RS64, POWER4, POWER5, POWER5+, POWER6, ...)
+
+ The other are the "embedded" processors compliant with the
+ "Book 3E" variant of the architecture
+
+config PPC_BOOK3S_64
+ bool "Server processors"
+ select PPC_FPU
+
+config PPC_BOOK3E_64
+ bool "Embedded processors"
+ select PPC_FPU # Make it a choice ?
+ select PPC_SMP_MUXED_IPI
+
+endchoice
+
+config PPC_BOOK3S
+ def_bool y
+ depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
+
+config PPC_BOOK3E
+ def_bool y
+ depends on PPC_BOOK3E_64
+
+config POWER4_ONLY
+ bool "Optimize for POWER4"
+ depends on PPC64 && PPC_BOOK3S
+ 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 6xx
+ def_bool y
+ depends on PPC32 && PPC_BOOK3S
+ select PPC_HAVE_PMU_SUPPORT
+
+config POWER3
+ bool
+ depends on PPC64 && PPC_BOOK3S
+ default y if !POWER4_ONLY
+
+config POWER4
+ depends on PPC64 && PPC_BOOK3S
+ def_bool y
+
+config PPC_A2
+ bool
+ depends on PPC_BOOK3E_64
+
+config TUNE_CELL
+ bool "Optimize for Cell Broadband Engine"
+ depends on PPC64 && PPC_BOOK3S
+ help
+ Cause the compiler to optimize for the PPE of the Cell Broadband
+ Engine. This will make the code run considerably faster on Cell
+ but somewhat slower on other machines. This option only changes
+ the scheduling of instructions, not the selection of instructions
+ itself, so the resulting kernel will keep running on all other
+ machines. When building a kernel that is supposed to run only
+ on Cell, you should also select the POWER4_ONLY option.
+
+# this is temp to handle compat with arch=ppc
+config 8xx
+ bool
+
+config E500
+ select FSL_EMB_PERFMON
+ select PPC_FSL_BOOK3E
+ bool
+
+config PPC_E500MC
+ bool "e500mc Support"
+ select PPC_FPU
+ depends on E500
+
+config PPC_FPU
+ bool
+ default y if PPC64
+
+config FSL_EMB_PERFMON
+ bool "Freescale Embedded Perfmon"
+ depends on E500 || PPC_83xx
+ help
+ This is the Performance Monitor support found on the e500 core
+ and some e300 cores (c3 and c4). Select this only if your
+ core supports the Embedded Performance Monitor APU
+
+config FSL_EMB_PERF_EVENT
+ bool
+ depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
+ default y
+
+config FSL_EMB_PERF_EVENT_E500
+ bool
+ depends on FSL_EMB_PERF_EVENT && E500
+ default y
+
+config 4xx
+ bool
+ depends on 40x || 44x
+ default y
+
+config BOOKE
+ bool
+ depends on E200 || E500 || 44x || PPC_BOOK3E
+ default y
+
+config FSL_BOOKE
+ bool
+ depends on (E200 || E500) && PPC32
+ default y
+
+# this is for common code between PPC32 & PPC64 FSL BOOKE
+config PPC_FSL_BOOK3E
+ bool
+ select FSL_EMB_PERFMON
+ select PPC_SMP_MUXED_IPI
+ default y if FSL_BOOKE
+
+config PTE_64BIT
+ bool
+ depends on 44x || E500 || PPC_86xx
+ default y if PHYS_64BIT
+
+config PHYS_64BIT
+ bool 'Large physical address support' if E500 || PPC_86xx
+ depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
+ ---help---
+ This option enables kernel support for larger than 32-bit physical
+ addresses. This feature may not be available on all cores.
+
+ If you have more than 3.5GB of RAM or so, you also need to enable
+ SWIOTLB under Kernel Options for this to work. The actual number
+ is platform-dependent.
+
+ If in doubt, say N here.
+
+config ALTIVEC
+ bool "AltiVec Support"
+ depends on 6xx || 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 VSX
+ bool "VSX Support"
+ depends on POWER4 && ALTIVEC && PPC_FPU
+ ---help---
+
+ This option enables kernel support for the Vector Scaler extensions
+ to the PowerPC processor. The kernel currently supports saving and
+ restoring VSX registers, and turning on the 'VSX enable' bit so user
+ processes can execute VSX instructions.
+
+ This option is only useful if you have a processor that supports
+ VSX (P7 and above), but does not have any affect on a non-VSX
+ CPUs (it does, however add code to the kernel).
+
+ If in doubt, say Y here.
+
+config PPC_ICSWX
+ bool "Support for PowerPC icswx coprocessor instruction"
+ depends on POWER4
+ default n
+ ---help---
+
+ This option enables kernel support for the PowerPC Initiate
+ Coprocessor Store Word (icswx) coprocessor instruction on POWER7
+ or newer processors.
+
+ This option is only useful if you have a processor that supports
+ the icswx coprocessor instruction. It does not have any effect
+ on processors without the icswx coprocessor instruction.
+
+ This option slightly increases kernel memory usage.
+
+ If in doubt, say N here.
+
+config SPE
+ bool "SPE Support"
+ depends on E200 || (E500 && !PPC_E500MC)
+ 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
+ def_bool y
+ depends on PPC_BOOK3S
+
+config PPC_STD_MMU_32
+ def_bool y
+ depends on PPC_STD_MMU && PPC32
+
+config PPC_STD_MMU_64
+ def_bool y
+ depends on PPC_STD_MMU && PPC64
+
+config PPC_MMU_NOHASH
+ def_bool y
+ depends on !PPC_STD_MMU
+
+config PPC_MMU_NOHASH_32
+ def_bool y
+ depends on PPC_MMU_NOHASH && PPC32
+
+config PPC_MMU_NOHASH_64
+ def_bool y
+ depends on PPC_MMU_NOHASH && PPC64
+
+config PPC_BOOK3E_MMU
+ def_bool y
+ depends on FSL_BOOKE || PPC_BOOK3E
+
+config PPC_MM_SLICES
+ bool
+ default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES)
+ 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 PPC_HAVE_PMU_SUPPORT
+ bool
+
+config PPC_PERF_CTRS
+ def_bool y
+ depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
+ help
+ This enables the powerpc-specific perf_event back-end.
+
+config SMP
+ depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x
+ 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 (2-8192)"
+ range 2 8192
+ depends on SMP
+ default "32" if PPC64
+ default "4"
+
+config NOT_COHERENT_CACHE
+ bool
+ depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON
+ default n if PPC_47x
+ default y
+
+config CHECK_CACHE_COHERENCY
+ bool
+
+endmenu