[deliverable/linux.git] / arch / powerpc / platforms / Kconfig.cputype

config PPC64
	bool "64-bit kernel"
	default n
	select HAVE_VIRT_CPU_ACCOUNTING
	select ZLIB_DEFLATE
	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 embedded 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
	  (POWER4, POWER5, 970, POWER5+, POWER6, POWER7, POWER8 ...)

	  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
	select PPC_HAVE_PMU_SUPPORT
	select SYS_SUPPORTS_HUGETLBFS
	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if PPC_64K_PAGES
	select ARCH_SUPPORTS_NUMA_BALANCING
	select IRQ_WORK

config PPC_BOOK3E_64
	bool "Embedded processors"
	select PPC_FPU # Make it a choice ?
	select PPC_SMP_MUXED_IPI
	select PPC_DOORBELL

endchoice

choice
	prompt "CPU selection"
	depends on PPC64
	default GENERIC_CPU
	help
	  This will create a kernel which is optimised for a particular CPU.
	  The resulting kernel may not run on other CPUs, so use this with care.

	  If unsure, select Generic.

config GENERIC_CPU
	bool "Generic"
	depends on !CPU_LITTLE_ENDIAN

config CELL_CPU
	bool "Cell Broadband Engine"
	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN

config POWER4_CPU
	bool "POWER4"
	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN

config POWER5_CPU
	bool "POWER5"
	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN

config POWER6_CPU
	bool "POWER6"
	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN

config POWER7_CPU
	bool "POWER7"
	depends on PPC_BOOK3S_64
	select ARCH_HAS_FAST_MULTIPLIER

config POWER8_CPU
	bool "POWER8"
	depends on PPC_BOOK3S_64
	select ARCH_HAS_FAST_MULTIPLIER

config E5500_CPU
	bool "Freescale e5500"
	depends on E500

config E6500_CPU
	bool "Freescale e6500"
	depends on E500

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 6xx
	def_bool y
	depends on PPC32 && PPC_BOOK3S
	select PPC_HAVE_PMU_SUPPORT

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.

# 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
	select COMMON_CLK
	depends on E500
	help
	  This must be enabled for running on e500mc (and derivatives
	  such as e5500/e6500), and must be disabled for running on
	  e500v1 or e500v2.

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
	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
	select PPC_DOORBELL
	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 || PPC_BOOK3S_64 || (PPC_E500MC && PPC64)
	---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 PPC_BOOK3S_64 && 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 PPC_BOOK3S_64
	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 PPC_ICSWX_PID
	bool "icswx requires direct PID management"
	depends on PPC_ICSWX
	default y
	---help---
	  The PID register in server is used explicitly for ICSWX.  In
	  embedded systems PID management is done by the system.

config PPC_ICSWX_USE_SIGILL
	bool "Should a bad CT cause a SIGILL?"
	depends on PPC_ICSWX
	default n
	---help---
	  Should a bad CT used for "non-record form ICSWX" cause an
	  illegal instruction signal or should it be silent as
	  architected.

	  If in doubt, say N here.

config SPE_POSSIBLE
	def_bool y
	depends on E200 || (E500 && !PPC_E500MC)

config SPE
	bool "SPE Support"
	depends on SPE_POSSIBLE
	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_BOOK3E_MMU
	def_bool y
	depends on FSL_BOOKE || PPC_BOOK3E

config PPC_MM_SLICES
	bool
	default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES)
	default n

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

config PPC_DOORBELL
	bool
	default n

endmenu

config VDSO32
	def_bool y
	depends on PPC32 || CPU_BIG_ENDIAN
	help
	  This symbol controls whether we build the 32-bit VDSO. We obviously
	  want to do that if we're building a 32-bit kernel. If we're building
	  a 64-bit kernel then we only want a 32-bit VDSO if we're building for
	  big endian. That is because the only little endian configuration we
	  support is ppc64le which is 64-bit only.

choice
	prompt "Endianness selection"
	default CPU_BIG_ENDIAN
	help
	  This option selects whether a big endian or little endian kernel will
	  be built.

config CPU_BIG_ENDIAN
	bool "Build big endian kernel"
	help
	  Build a big endian kernel.

	  If unsure, select this option.

config CPU_LITTLE_ENDIAN
	bool "Build little endian kernel"
	depends on PPC_BOOK3S_64
	select PPC64_BOOT_WRAPPER
	help
	  Build a little endian kernel.

	  Note that if cross compiling a little endian kernel,
	  CROSS_COMPILE must point to a toolchain capable of targeting
	  little endian powerpc.

endchoice

config PPC64_BOOT_WRAPPER
	def_bool n
	depends on CPU_LITTLE_ENDIAN
Commit	Line	Data
a0ae9c7c AB	1	config PPC64
	2	bool "64-bit kernel"
	3	default n
b952741c	4	select HAVE_VIRT_CPU_ACCOUNTING
78989f0a	5	select ZLIB_DEFLATE
a0ae9c7c AB	6	help
	7	This option selects whether a 32-bit or a 64-bit kernel
	8	will be built.
	9
	10	menu "Processor support"
	11	choice
	12	prompt "Processor Type"
	13	depends on PPC32
a0ae9c7c	14	help
b9fd305d AB	15	There are five families of 32 bit PowerPC chips supported.
	16	The most common ones are the desktop and server CPUs (601, 603,
	17	604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
e177edcd	18	embedded 512x/52xx/82xx/83xx/86xx counterparts.
b140e5b2	19	The other embedded parts, namely 4xx, 8xx, e200 (55xx) and e500
b9fd305d AB	20	(85xx) each form a family of their own that is not compatible
	21	with the others.
	22
	23	If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
	24
48c93112	25	config PPC_BOOK3S_32
e177edcd	26	bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
a0ae9c7c AB	27	select PPC_FPU
a0ae9c7c AB	28
a0ae9c7c AB	29	config PPC_85xx
	30	bool "Freescale 85xx"
	31	select E500
a0ae9c7c	32
a0ae9c7c AB	33	config PPC_8xx
	34	bool "Freescale 8xx"
	35	select FSL_SOC
	36	select 8xx
1088a209	37	select PPC_LIB_RHEAP
a0ae9c7c AB	38
	39	config 40x
	40	bool "AMCC 40x"
	41	select PPC_DCR_NATIVE
9dae8afd	42	select PPC_UDBG_16550
93173ce2	43	select 4xx_SOC
b500563b	44	select PPC_PCI_CHOICE
a0ae9c7c AB	45
a0ae9c7c AB	46	config 44x
e7f75ad0	47	bool "AMCC 44x, 46x or 47x"
a0ae9c7c	48	select PPC_DCR_NATIVE
1d5499b5	49	select PPC_UDBG_16550
93173ce2	50	select 4xx_SOC
b500563b	51	select PPC_PCI_CHOICE
4ee7084e	52	select PHYS_64BIT
a0ae9c7c AB	53
	54	config E200
	55	bool "Freescale e200"
	56
	57	endchoice
	58
2d27cfd3 BH	59	choice
2d27cfd3 BH	60	prompt "Processor Type"
5b7c3c91	61	depends on PPC64
2d27cfd3 BH	62	help
	63	There are two families of 64 bit PowerPC chips supported.
	64	The most common ones are the desktop and server CPUs
0f369103	65	(POWER4, POWER5, 970, POWER5+, POWER6, POWER7, POWER8 ...)
2d27cfd3 BH	66
	67	The other are the "embedded" processors compliant with the
	68	"Book 3E" variant of the architecture
	69
	70	config PPC_BOOK3S_64
	71	bool "Server processors"
5b7c3c91	72	select PPC_FPU
5adfd346	73	select PPC_HAVE_PMU_SUPPORT
41151e77	74	select SYS_SUPPORTS_HUGETLBFS
074c2eae	75	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if PPC_64K_PAGES
c34a51ce	76	select ARCH_SUPPORTS_NUMA_BALANCING
527518f1	77	select IRQ_WORK
5b7c3c91	78
2d27cfd3 BH	79	config PPC_BOOK3E_64
	80	bool "Embedded processors"
	81	select PPC_FPU # Make it a choice ?
1ece355b	82	select PPC_SMP_MUXED_IPI
440bc685	83	select PPC_DOORBELL
2d27cfd3 BH	84
	85	endchoice
	86
d23c6fb4 AB	87	choice
	88	prompt "CPU selection"
	89	depends on PPC64
	90	default GENERIC_CPU
	91	help
	92	This will create a kernel which is optimised for a particular CPU.
	93	The resulting kernel may not run on other CPUs, so use this with care.
	94
	95	If unsure, select Generic.
	96
	97	config GENERIC_CPU
	98	bool "Generic"
686245be	99	depends on !CPU_LITTLE_ENDIAN
d23c6fb4 AB	100
	101	config CELL_CPU
	102	bool "Cell Broadband Engine"
686245be	103	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
d23c6fb4 AB	104
	105	config POWER4_CPU
	106	bool "POWER4"
686245be	107	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
d23c6fb4 AB	108
	109	config POWER5_CPU
	110	bool "POWER5"
686245be	111	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
d23c6fb4 AB	112
	113	config POWER6_CPU
	114	bool "POWER6"
686245be	115	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
d23c6fb4 AB	116
	117	config POWER7_CPU
	118	bool "POWER7"
01718ba6	119	depends on PPC_BOOK3S_64
423216ed	120	select ARCH_HAS_FAST_MULTIPLIER
01718ba6	121
ff2e466a AB	122	config POWER8_CPU
	123	bool "POWER8"
	124	depends on PPC_BOOK3S_64
423216ed	125	select ARCH_HAS_FAST_MULTIPLIER
01718ba6 SW	126
	127	config E5500_CPU
	128	bool "Freescale e5500"
	129	depends on E500
	130
	131	config E6500_CPU
	132	bool "Freescale e6500"
	133	depends on E500
d23c6fb4 AB	134
	135	endchoice
	136
48c93112 BH	137	config PPC_BOOK3S
	138	def_bool y
	139	depends on PPC_BOOK3S_32 \|\| PPC_BOOK3S_64
28794d34	140
2d27cfd3 BH	141	config PPC_BOOK3E
	142	def_bool y
	143	depends on PPC_BOOK3E_64
	144
5b7c3c91 BH	145	config 6xx
	146	def_bool y
	147	depends on PPC32 && PPC_BOOK3S
7325927e	148	select PPC_HAVE_PMU_SUPPORT
5b7c3c91	149
3164cccd AB	150	config TUNE_CELL
3164cccd AB	151	bool "Optimize for Cell Broadband Engine"
28794d34	152	depends on PPC64 && PPC_BOOK3S
3164cccd AB	153	help
	154	Cause the compiler to optimize for the PPE of the Cell Broadband
	155	Engine. This will make the code run considerably faster on Cell
	156	but somewhat slower on other machines. This option only changes
	157	the scheduling of instructions, not the selection of instructions
	158	itself, so the resulting kernel will keep running on all other
ff2d7587	159	machines.
3164cccd	160
a0ae9c7c AB	161	# this is temp to handle compat with arch=ppc
	162	config 8xx
	163	bool
	164
a0ae9c7c	165	config E500
39aef685	166	select FSL_EMB_PERFMON
4490c06b	167	select PPC_FSL_BOOK3E
a0ae9c7c AB	168	bool
a0ae9c7c AB	169
3dfa8773 KG	170	config PPC_E500MC
	171	bool "e500mc Support"
	172	select PPC_FPU
555eae97	173	select COMMON_CLK
3dfa8773	174	depends on E500
9653018b SW	175	help
	176	This must be enabled for running on e500mc (and derivatives
	177	such as e5500/e6500), and must be disabled for running on
	178	e500v1 or e500v2.
3dfa8773	179
a0ae9c7c AB	180	config PPC_FPU
	181	bool
	182	default y if PPC64
	183
5753c082 KG	184	config FSL_EMB_PERFMON
	185	bool "Freescale Embedded Perfmon"
	186	depends on E500 \|\| PPC_83xx
	187	help
	188	This is the Performance Monitor support found on the e500 core
	189	and some e300 cores (c3 and c4). Select this only if your
	190	core supports the Embedded Performance Monitor APU
	191
a1110654 SW	192	config FSL_EMB_PERF_EVENT
	193	bool
	194	depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
	195	default y
	196
	197	config FSL_EMB_PERF_EVENT_E500
	198	bool
	199	depends on FSL_EMB_PERF_EVENT && E500
	200	default y
	201
a0ae9c7c AB	202	config 4xx
	203	bool
	204	depends on 40x \|\| 44x
	205	default y
	206
	207	config BOOKE
	208	bool
2d27cfd3	209	depends on E200 \|\| E500 \|\| 44x \|\| PPC_BOOK3E
a0ae9c7c AB	210	default y
	211
	212	config FSL_BOOKE
	213	bool
4490c06b	214	depends on (E200 \|\| E500) && PPC32
a0ae9c7c AB	215	default y
a0ae9c7c AB	216
4490c06b KG	217	# this is for common code between PPC32 & PPC64 FSL BOOKE
	218	config PPC_FSL_BOOK3E
	219	bool
	220	select FSL_EMB_PERFMON
1ece355b	221	select PPC_SMP_MUXED_IPI
a475c8ec	222	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT \|\| PPC64
440bc685	223	select PPC_DOORBELL
4490c06b	224	default y if FSL_BOOKE
39aef685	225
a0ae9c7c AB	226	config PTE_64BIT
a0ae9c7c AB	227	bool
4ee7084e BB	228	depends on 44x \|\| E500 \|\| PPC_86xx
4ee7084e BB	229	default y if PHYS_64BIT
a0ae9c7c AB	230
a0ae9c7c AB	231	config PHYS_64BIT
4ee7084e BB	232	bool 'Large physical address support' if E500 \|\| PPC_86xx
4ee7084e BB	233	depends on (44x \|\| E500 \|\| PPC_86xx) && !PPC_83xx && !PPC_82xx
a0ae9c7c AB	234	---help---
a0ae9c7c AB	235	This option enables kernel support for larger than 32-bit physical
4ee7084e BB	236	addresses. This feature may not be available on all cores.
	237
	238	If you have more than 3.5GB of RAM or so, you also need to enable
	239	SWIOTLB under Kernel Options for this to work. The actual number
	240	is platform-dependent.
a0ae9c7c AB	241
	242	If in doubt, say N here.
	243
	244	config ALTIVEC
	245	bool "AltiVec Support"
804ece07	246	depends on 6xx \|\| PPC_BOOK3S_64 \|\| (PPC_E500MC && PPC64)
a0ae9c7c AB	247	---help---
	248	This option enables kernel support for the Altivec extensions to the
	249	PowerPC processor. The kernel currently supports saving and restoring
	250	altivec registers, and turning on the 'altivec enable' bit so user
	251	processes can execute altivec instructions.
	252
	253	This option is only usefully if you have a processor that supports
	254	altivec (G4, otherwise known as 74xx series), but does not have
	255	any affect on a non-altivec cpu (it does, however add code to the
	256	kernel).
	257
	258	If in doubt, say Y here.
	259
96d5b52c MN	260	config VSX
96d5b52c MN	261	bool "VSX Support"
804ece07	262	depends on PPC_BOOK3S_64 && ALTIVEC && PPC_FPU
96d5b52c MN	263	---help---
	264
	265	This option enables kernel support for the Vector Scaler extensions
	266	to the PowerPC processor. The kernel currently supports saving and
	267	restoring VSX registers, and turning on the 'VSX enable' bit so user
	268	processes can execute VSX instructions.
	269
	270	This option is only useful if you have a processor that supports
	271	VSX (P7 and above), but does not have any affect on a non-VSX
	272	CPUs (it does, however add code to the kernel).
	273
	274	If in doubt, say Y here.
	275
851d2e2f THFL	276	config PPC_ICSWX
851d2e2f THFL	277	bool "Support for PowerPC icswx coprocessor instruction"
804ece07	278	depends on PPC_BOOK3S_64
851d2e2f THFL	279	default n
	280	---help---
	281
	282	This option enables kernel support for the PowerPC Initiate
	283	Coprocessor Store Word (icswx) coprocessor instruction on POWER7
	284	or newer processors.
	285
	286	This option is only useful if you have a processor that supports
	287	the icswx coprocessor instruction. It does not have any effect
	288	on processors without the icswx coprocessor instruction.
	289
	290	This option slightly increases kernel memory usage.
	291
	292	If in doubt, say N here.
	293
9d670280 JX	294	config PPC_ICSWX_PID
9d670280 JX	295	bool "icswx requires direct PID management"
804ece07	296	depends on PPC_ICSWX
9d670280 JX	297	default y
9d670280 JX	298	---help---
c3dcf53a	299	The PID register in server is used explicitly for ICSWX. In
6b2aac42	300	embedded systems PID management is done by the system.
9d670280	301
c3dcf53a JX	302	config PPC_ICSWX_USE_SIGILL
	303	bool "Should a bad CT cause a SIGILL?"
	304	depends on PPC_ICSWX
	305	default n
	306	---help---
	307	Should a bad CT used for "non-record form ICSWX" cause an
6b2aac42	308	illegal instruction signal or should it be silent as
c3dcf53a JX	309	architected.
	310
	311	If in doubt, say N here.
	312
3477e71d MC	313	config SPE_POSSIBLE
	314	def_bool y
	315	depends on E200 \|\| (E500 && !PPC_E500MC)
	316
a0ae9c7c AB	317	config SPE
a0ae9c7c AB	318	bool "SPE Support"
3477e71d	319	depends on SPE_POSSIBLE
a0ae9c7c AB	320	default y
	321	---help---
	322	This option enables kernel support for the Signal Processing
	323	Extensions (SPE) to the PowerPC processor. The kernel currently
	324	supports saving and restoring SPE registers, and turning on the
	325	'spe enable' bit so user processes can execute SPE instructions.
	326
	327	This option is only useful if you have a processor that supports
	328	SPE (e500, otherwise known as 85xx series), but does not have any
	329	effect on a non-spe cpu (it does, however add code to the kernel).
	330
	331	If in doubt, say Y here.
	332
	333	config PPC_STD_MMU
5b7c3c91 BH	334	def_bool y
5b7c3c91 BH	335	depends on PPC_BOOK3S
a0ae9c7c AB	336
	337	config PPC_STD_MMU_32
	338	def_bool y
	339	depends on PPC_STD_MMU && PPC32
	340
5e696617 BH	341	config PPC_STD_MMU_64
	342	def_bool y
	343	depends on PPC_STD_MMU && PPC64
	344
	345	config PPC_MMU_NOHASH
	346	def_bool y
	347	depends on !PPC_STD_MMU
	348
70fe3af8 KG	349	config PPC_BOOK3E_MMU
70fe3af8 KG	350	def_bool y
2d27cfd3	351	depends on FSL_BOOKE \|\| PPC_BOOK3E
70fe3af8	352
a0ae9c7c AB	353	config PPC_MM_SLICES
a0ae9c7c AB	354	bool
a475c8ec	355	default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) \|\| (PPC_STD_MMU_64 && PPC_64K_PAGES)
a0ae9c7c AB	356	default n
a0ae9c7c AB	357
105988c0 PM	358	config PPC_HAVE_PMU_SUPPORT
	359	bool
	360
	361	config PPC_PERF_CTRS
	362	def_bool y
cdd6c482	363	depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
105988c0	364	help
cdd6c482	365	This enables the powerpc-specific perf_event back-end.
105988c0	366
a0ae9c7c	367	config SMP
e7f75ad0	368	depends on PPC_BOOK3S \|\| PPC_BOOK3E \|\| FSL_BOOKE \|\| PPC_47x
a0ae9c7c AB	369	bool "Symmetric multi-processing support"
	370	---help---
	371	This enables support for systems with more than one CPU. If you have
	372	a system with only one CPU, say N. If you have a system with more
	373	than one CPU, say Y. Note that the kernel does not currently
	374	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	375	since they have inadequate hardware support for multiprocessor
	376	operation.
	377
	378	If you say N here, the kernel will run on single and multiprocessor
	379	machines, but will use only one CPU of a multiprocessor machine. If
	380	you say Y here, the kernel will run on single-processor machines.
	381	On a single-processor machine, the kernel will run faster if you say
	382	N here.
	383
	384	If you don't know what to do here, say N.
	385
	386	config NR_CPUS
2d8ae638 MN	387	int "Maximum number of CPUs (2-8192)"
2d8ae638 MN	388	range 2 8192
a0ae9c7c AB	389	depends on SMP
	390	default "32" if PPC64
	391	default "4"
	392
	393	config NOT_COHERENT_CACHE
	394	bool
b91a143b	395	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x \|\| GAMECUBE_COMMON
e7f75ad0	396	default n if PPC_47x
a0ae9c7c AB	397	default y
a0ae9c7c AB	398
f8eb77d6	399	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	400	bool
a0ae9c7c AB	401
440bc685 IM	402	config PPC_DOORBELL
	403	bool
	404	default n
	405
a0ae9c7c	406	endmenu
7c105b63	407
e0d00591 ME	408	config VDSO32
	409	def_bool y
	410	depends on PPC32 \|\| CPU_BIG_ENDIAN
	411	help
	412	This symbol controls whether we build the 32-bit VDSO. We obviously
	413	want to do that if we're building a 32-bit kernel. If we're building
	414	a 64-bit kernel then we only want a 32-bit VDSO if we're building for
	415	big endian. That is because the only little endian configuration we
	416	support is ppc64le which is 64-bit only.
	417
962bc221 AB	418	choice
	419	prompt "Endianness selection"
	420	default CPU_BIG_ENDIAN
7c105b63 AB	421	help
	422	This option selects whether a big endian or little endian kernel will
	423	be built.
	424
962bc221 AB	425	config CPU_BIG_ENDIAN
	426	bool "Build big endian kernel"
	427	help
	428	Build a big endian kernel.
	429
	430	If unsure, select this option.
	431
	432	config CPU_LITTLE_ENDIAN
	433	bool "Build little endian kernel"
d4d4add9	434	depends on PPC_BOOK3S_64
147c0516	435	select PPC64_BOOT_WRAPPER
962bc221 AB	436	help
	437	Build a little endian kernel.
	438
7c105b63 AB	439	Note that if cross compiling a little endian kernel,
	440	CROSS_COMPILE must point to a toolchain capable of targeting
	441	little endian powerpc.
962bc221 AB	442
962bc221 AB	443	endchoice
147c0516 CLG	444
	445	config PPC64_BOOT_WRAPPER
	446	def_bool n
	447	depends on CPU_LITTLE_ENDIAN