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

config PPC64
	bool "64-bit kernel"
	default n
	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
	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

# 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_RADIX_MMU
	bool "Radix MMU Support"
	depends on PPC_BOOK3S_64
	default y
	help
	  Enable support for the Power ISA 3.0 Radix style MMU. Currently this
	  is only implemented by IBM Power9 CPUs, if you don't have one of them
	  you can probably disable this.

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
78989f0a	4	select ZLIB_DEFLATE
a0ae9c7c AB	5	help
	6	This option selects whether a 32-bit or a 64-bit kernel
	7	will be built.
	8
	9	menu "Processor support"
	10	choice
	11	prompt "Processor Type"
	12	depends on PPC32
a0ae9c7c	13	help
b9fd305d AB	14	There are five families of 32 bit PowerPC chips supported.
	15	The most common ones are the desktop and server CPUs (601, 603,
	16	604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
e177edcd	17	embedded 512x/52xx/82xx/83xx/86xx counterparts.
b140e5b2	18	The other embedded parts, namely 4xx, 8xx, e200 (55xx) and e500
b9fd305d AB	19	(85xx) each form a family of their own that is not compatible
	20	with the others.
	21
	22	If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
	23
48c93112	24	config PPC_BOOK3S_32
e177edcd	25	bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
a0ae9c7c AB	26	select PPC_FPU
a0ae9c7c AB	27
a0ae9c7c AB	28	config PPC_85xx
	29	bool "Freescale 85xx"
	30	select E500
a0ae9c7c	31
a0ae9c7c AB	32	config PPC_8xx
	33	bool "Freescale 8xx"
	34	select FSL_SOC
	35	select 8xx
1088a209	36	select PPC_LIB_RHEAP
a0ae9c7c AB	37
	38	config 40x
	39	bool "AMCC 40x"
	40	select PPC_DCR_NATIVE
9dae8afd	41	select PPC_UDBG_16550
93173ce2	42	select 4xx_SOC
b500563b	43	select PPC_PCI_CHOICE
a0ae9c7c AB	44
a0ae9c7c AB	45	config 44x
e7f75ad0	46	bool "AMCC 44x, 46x or 47x"
a0ae9c7c	47	select PPC_DCR_NATIVE
1d5499b5	48	select PPC_UDBG_16550
93173ce2	49	select 4xx_SOC
b500563b	50	select PPC_PCI_CHOICE
4ee7084e	51	select PHYS_64BIT
a0ae9c7c AB	52
	53	config E200
	54	bool "Freescale e200"
	55
	56	endchoice
	57
2d27cfd3 BH	58	choice
2d27cfd3 BH	59	prompt "Processor Type"
5b7c3c91	60	depends on PPC64
2d27cfd3 BH	61	help
	62	There are two families of 64 bit PowerPC chips supported.
	63	The most common ones are the desktop and server CPUs
0f369103	64	(POWER4, POWER5, 970, POWER5+, POWER6, POWER7, POWER8 ...)
2d27cfd3 BH	65
	66	The other are the "embedded" processors compliant with the
	67	"Book 3E" variant of the architecture
	68
	69	config PPC_BOOK3S_64
	70	bool "Server processors"
5b7c3c91	71	select PPC_FPU
5adfd346	72	select PPC_HAVE_PMU_SUPPORT
41151e77	73	select SYS_SUPPORTS_HUGETLBFS
ab624762	74	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
c34a51ce	75	select ARCH_SUPPORTS_NUMA_BALANCING
527518f1	76	select IRQ_WORK
5b7c3c91	77
2d27cfd3 BH	78	config PPC_BOOK3E_64
	79	bool "Embedded processors"
	80	select PPC_FPU # Make it a choice ?
1ece355b	81	select PPC_SMP_MUXED_IPI
440bc685	82	select PPC_DOORBELL
2d27cfd3 BH	83
	84	endchoice
	85
d23c6fb4 AB	86	choice
	87	prompt "CPU selection"
	88	depends on PPC64
	89	default GENERIC_CPU
	90	help
	91	This will create a kernel which is optimised for a particular CPU.
	92	The resulting kernel may not run on other CPUs, so use this with care.
	93
	94	If unsure, select Generic.
	95
	96	config GENERIC_CPU
	97	bool "Generic"
686245be	98	depends on !CPU_LITTLE_ENDIAN
d23c6fb4 AB	99
	100	config CELL_CPU
	101	bool "Cell Broadband Engine"
686245be	102	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
d23c6fb4 AB	103
	104	config POWER4_CPU
	105	bool "POWER4"
686245be	106	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
d23c6fb4 AB	107
	108	config POWER5_CPU
	109	bool "POWER5"
686245be	110	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
d23c6fb4 AB	111
	112	config POWER6_CPU
	113	bool "POWER6"
686245be	114	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
d23c6fb4 AB	115
	116	config POWER7_CPU
	117	bool "POWER7"
01718ba6	118	depends on PPC_BOOK3S_64
423216ed	119	select ARCH_HAS_FAST_MULTIPLIER
01718ba6	120
ff2e466a AB	121	config POWER8_CPU
	122	bool "POWER8"
	123	depends on PPC_BOOK3S_64
423216ed	124	select ARCH_HAS_FAST_MULTIPLIER
01718ba6 SW	125
	126	config E5500_CPU
	127	bool "Freescale e5500"
	128	depends on E500
	129
	130	config E6500_CPU
	131	bool "Freescale e6500"
	132	depends on E500
d23c6fb4 AB	133
	134	endchoice
	135
48c93112 BH	136	config PPC_BOOK3S
	137	def_bool y
	138	depends on PPC_BOOK3S_32 \|\| PPC_BOOK3S_64
28794d34	139
2d27cfd3 BH	140	config PPC_BOOK3E
	141	def_bool y
	142	depends on PPC_BOOK3E_64
	143
5b7c3c91 BH	144	config 6xx
	145	def_bool y
	146	depends on PPC32 && PPC_BOOK3S
7325927e	147	select PPC_HAVE_PMU_SUPPORT
5b7c3c91	148
a0ae9c7c AB	149	# this is temp to handle compat with arch=ppc
	150	config 8xx
	151	bool
	152
a0ae9c7c	153	config E500
39aef685	154	select FSL_EMB_PERFMON
4490c06b	155	select PPC_FSL_BOOK3E
a0ae9c7c AB	156	bool
a0ae9c7c AB	157
3dfa8773 KG	158	config PPC_E500MC
	159	bool "e500mc Support"
	160	select PPC_FPU
555eae97	161	select COMMON_CLK
3dfa8773	162	depends on E500
9653018b SW	163	help
	164	This must be enabled for running on e500mc (and derivatives
	165	such as e5500/e6500), and must be disabled for running on
	166	e500v1 or e500v2.
3dfa8773	167
a0ae9c7c AB	168	config PPC_FPU
	169	bool
	170	default y if PPC64
	171
5753c082 KG	172	config FSL_EMB_PERFMON
	173	bool "Freescale Embedded Perfmon"
	174	depends on E500 \|\| PPC_83xx
	175	help
	176	This is the Performance Monitor support found on the e500 core
	177	and some e300 cores (c3 and c4). Select this only if your
	178	core supports the Embedded Performance Monitor APU
	179
a1110654 SW	180	config FSL_EMB_PERF_EVENT
	181	bool
	182	depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
	183	default y
	184
	185	config FSL_EMB_PERF_EVENT_E500
	186	bool
	187	depends on FSL_EMB_PERF_EVENT && E500
	188	default y
	189
a0ae9c7c AB	190	config 4xx
	191	bool
	192	depends on 40x \|\| 44x
	193	default y
	194
	195	config BOOKE
	196	bool
2d27cfd3	197	depends on E200 \|\| E500 \|\| 44x \|\| PPC_BOOK3E
a0ae9c7c AB	198	default y
	199
	200	config FSL_BOOKE
	201	bool
4490c06b	202	depends on (E200 \|\| E500) && PPC32
a0ae9c7c AB	203	default y
a0ae9c7c AB	204
4490c06b KG	205	# this is for common code between PPC32 & PPC64 FSL BOOKE
	206	config PPC_FSL_BOOK3E
	207	bool
	208	select FSL_EMB_PERFMON
1ece355b	209	select PPC_SMP_MUXED_IPI
a475c8ec	210	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT \|\| PPC64
440bc685	211	select PPC_DOORBELL
4490c06b	212	default y if FSL_BOOKE
39aef685	213
a0ae9c7c AB	214	config PTE_64BIT
a0ae9c7c AB	215	bool
4ee7084e BB	216	depends on 44x \|\| E500 \|\| PPC_86xx
4ee7084e BB	217	default y if PHYS_64BIT
a0ae9c7c AB	218
a0ae9c7c AB	219	config PHYS_64BIT
4ee7084e BB	220	bool 'Large physical address support' if E500 \|\| PPC_86xx
4ee7084e BB	221	depends on (44x \|\| E500 \|\| PPC_86xx) && !PPC_83xx && !PPC_82xx
a0ae9c7c AB	222	---help---
a0ae9c7c AB	223	This option enables kernel support for larger than 32-bit physical
4ee7084e BB	224	addresses. This feature may not be available on all cores.
	225
	226	If you have more than 3.5GB of RAM or so, you also need to enable
	227	SWIOTLB under Kernel Options for this to work. The actual number
	228	is platform-dependent.
a0ae9c7c AB	229
	230	If in doubt, say N here.
	231
	232	config ALTIVEC
	233	bool "AltiVec Support"
804ece07	234	depends on 6xx \|\| PPC_BOOK3S_64 \|\| (PPC_E500MC && PPC64)
a0ae9c7c AB	235	---help---
	236	This option enables kernel support for the Altivec extensions to the
	237	PowerPC processor. The kernel currently supports saving and restoring
	238	altivec registers, and turning on the 'altivec enable' bit so user
	239	processes can execute altivec instructions.
	240
	241	This option is only usefully if you have a processor that supports
	242	altivec (G4, otherwise known as 74xx series), but does not have
	243	any affect on a non-altivec cpu (it does, however add code to the
	244	kernel).
	245
	246	If in doubt, say Y here.
	247
96d5b52c MN	248	config VSX
96d5b52c MN	249	bool "VSX Support"
804ece07	250	depends on PPC_BOOK3S_64 && ALTIVEC && PPC_FPU
96d5b52c MN	251	---help---
	252
	253	This option enables kernel support for the Vector Scaler extensions
	254	to the PowerPC processor. The kernel currently supports saving and
	255	restoring VSX registers, and turning on the 'VSX enable' bit so user
	256	processes can execute VSX instructions.
	257
	258	This option is only useful if you have a processor that supports
	259	VSX (P7 and above), but does not have any affect on a non-VSX
	260	CPUs (it does, however add code to the kernel).
	261
	262	If in doubt, say Y here.
	263
851d2e2f THFL	264	config PPC_ICSWX
851d2e2f THFL	265	bool "Support for PowerPC icswx coprocessor instruction"
804ece07	266	depends on PPC_BOOK3S_64
851d2e2f THFL	267	default n
	268	---help---
	269
	270	This option enables kernel support for the PowerPC Initiate
	271	Coprocessor Store Word (icswx) coprocessor instruction on POWER7
	272	or newer processors.
	273
	274	This option is only useful if you have a processor that supports
	275	the icswx coprocessor instruction. It does not have any effect
	276	on processors without the icswx coprocessor instruction.
	277
	278	This option slightly increases kernel memory usage.
	279
	280	If in doubt, say N here.
	281
9d670280 JX	282	config PPC_ICSWX_PID
9d670280 JX	283	bool "icswx requires direct PID management"
804ece07	284	depends on PPC_ICSWX
9d670280 JX	285	default y
9d670280 JX	286	---help---
c3dcf53a	287	The PID register in server is used explicitly for ICSWX. In
6b2aac42	288	embedded systems PID management is done by the system.
9d670280	289
c3dcf53a JX	290	config PPC_ICSWX_USE_SIGILL
	291	bool "Should a bad CT cause a SIGILL?"
	292	depends on PPC_ICSWX
	293	default n
	294	---help---
	295	Should a bad CT used for "non-record form ICSWX" cause an
6b2aac42	296	illegal instruction signal or should it be silent as
c3dcf53a JX	297	architected.
	298
	299	If in doubt, say N here.
	300
3477e71d MC	301	config SPE_POSSIBLE
	302	def_bool y
	303	depends on E200 \|\| (E500 && !PPC_E500MC)
	304
a0ae9c7c AB	305	config SPE
a0ae9c7c AB	306	bool "SPE Support"
3477e71d	307	depends on SPE_POSSIBLE
a0ae9c7c AB	308	default y
	309	---help---
	310	This option enables kernel support for the Signal Processing
	311	Extensions (SPE) to the PowerPC processor. The kernel currently
	312	supports saving and restoring SPE registers, and turning on the
	313	'spe enable' bit so user processes can execute SPE instructions.
	314
	315	This option is only useful if you have a processor that supports
	316	SPE (e500, otherwise known as 85xx series), but does not have any
	317	effect on a non-spe cpu (it does, however add code to the kernel).
	318
	319	If in doubt, say Y here.
	320
	321	config PPC_STD_MMU
5b7c3c91 BH	322	def_bool y
5b7c3c91 BH	323	depends on PPC_BOOK3S
a0ae9c7c AB	324
	325	config PPC_STD_MMU_32
	326	def_bool y
	327	depends on PPC_STD_MMU && PPC32
	328
5e696617 BH	329	config PPC_STD_MMU_64
	330	def_bool y
	331	depends on PPC_STD_MMU && PPC64
	332
566ca99a AK	333	config PPC_RADIX_MMU
	334	bool "Radix MMU Support"
	335	depends on PPC_BOOK3S_64
	336	default y
	337	help
	338	Enable support for the Power ISA 3.0 Radix style MMU. Currently this
	339	is only implemented by IBM Power9 CPUs, if you don't have one of them
	340	you can probably disable this.
	341
5e696617 BH	342	config PPC_MMU_NOHASH
	343	def_bool y
	344	depends on !PPC_STD_MMU
	345
70fe3af8 KG	346	config PPC_BOOK3E_MMU
70fe3af8 KG	347	def_bool y
2d27cfd3	348	depends on FSL_BOOKE \|\| PPC_BOOK3E
70fe3af8	349
a0ae9c7c AB	350	config PPC_MM_SLICES
a0ae9c7c AB	351	bool
a475c8ec	352	default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) \|\| (PPC_STD_MMU_64 && PPC_64K_PAGES)
a0ae9c7c AB	353	default n
a0ae9c7c AB	354
105988c0 PM	355	config PPC_HAVE_PMU_SUPPORT
	356	bool
	357
	358	config PPC_PERF_CTRS
	359	def_bool y
cdd6c482	360	depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
105988c0	361	help
cdd6c482	362	This enables the powerpc-specific perf_event back-end.
105988c0	363
a0ae9c7c	364	config SMP
e7f75ad0	365	depends on PPC_BOOK3S \|\| PPC_BOOK3E \|\| FSL_BOOKE \|\| PPC_47x
a0ae9c7c AB	366	bool "Symmetric multi-processing support"
	367	---help---
	368	This enables support for systems with more than one CPU. If you have
	369	a system with only one CPU, say N. If you have a system with more
	370	than one CPU, say Y. Note that the kernel does not currently
	371	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	372	since they have inadequate hardware support for multiprocessor
	373	operation.
	374
	375	If you say N here, the kernel will run on single and multiprocessor
	376	machines, but will use only one CPU of a multiprocessor machine. If
	377	you say Y here, the kernel will run on single-processor machines.
	378	On a single-processor machine, the kernel will run faster if you say
	379	N here.
	380
	381	If you don't know what to do here, say N.
	382
	383	config NR_CPUS
2d8ae638 MN	384	int "Maximum number of CPUs (2-8192)"
2d8ae638 MN	385	range 2 8192
a0ae9c7c AB	386	depends on SMP
	387	default "32" if PPC64
	388	default "4"
	389
	390	config NOT_COHERENT_CACHE
	391	bool
b91a143b	392	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x \|\| GAMECUBE_COMMON
e7f75ad0	393	default n if PPC_47x
a0ae9c7c AB	394	default y
a0ae9c7c AB	395
f8eb77d6	396	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	397	bool
a0ae9c7c AB	398
440bc685 IM	399	config PPC_DOORBELL
	400	bool
	401	default n
	402
a0ae9c7c	403	endmenu
7c105b63	404
e0d00591 ME	405	config VDSO32
	406	def_bool y
	407	depends on PPC32 \|\| CPU_BIG_ENDIAN
	408	help
	409	This symbol controls whether we build the 32-bit VDSO. We obviously
	410	want to do that if we're building a 32-bit kernel. If we're building
	411	a 64-bit kernel then we only want a 32-bit VDSO if we're building for
	412	big endian. That is because the only little endian configuration we
	413	support is ppc64le which is 64-bit only.
	414
962bc221 AB	415	choice
	416	prompt "Endianness selection"
	417	default CPU_BIG_ENDIAN
7c105b63 AB	418	help
	419	This option selects whether a big endian or little endian kernel will
	420	be built.
	421
962bc221 AB	422	config CPU_BIG_ENDIAN
	423	bool "Build big endian kernel"
	424	help
	425	Build a big endian kernel.
	426
	427	If unsure, select this option.
	428
	429	config CPU_LITTLE_ENDIAN
	430	bool "Build little endian kernel"
d4d4add9	431	depends on PPC_BOOK3S_64
147c0516	432	select PPC64_BOOT_WRAPPER
962bc221 AB	433	help
	434	Build a little endian kernel.
	435
7c105b63 AB	436	Note that if cross compiling a little endian kernel,
	437	CROSS_COMPILE must point to a toolchain capable of targeting
	438	little endian powerpc.
962bc221 AB	439
962bc221 AB	440	endchoice
147c0516 CLG	441
	442	config PPC64_BOOT_WRAPPER
	443	def_bool n
	444	depends on CPU_LITTLE_ENDIAN