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

config PPC64
	bool "64-bit kernel"
	default n
	select HAVE_VIRT_CPU_ACCOUNTING
	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
	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

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 POWER4
	depends on PPC64 && PPC_BOOK3S
	def_bool y

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 || POWER4 || (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 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 PPC_ICSWX_PID
	bool "icswx requires direct PID management"
	depends on PPC_ICSWX && POWER4
	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
	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_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

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"
	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
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.
b9fd305d AB	18	The other embeeded parts, namely 4xx, 8xx, e200 (55xx) and e500
	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
	64	(POWER3, RS64, POWER4, POWER5, POWER5+, POWER6, ...)
	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
074c2eae	74	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if PPC_64K_PAGES
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 SW	118	depends on PPC_BOOK3S_64
	119
	120	config E5500_CPU
	121	bool "Freescale e5500"
	122	depends on E500
	123
	124	config E6500_CPU
	125	bool "Freescale e6500"
	126	depends on E500
d23c6fb4 AB	127
	128	endchoice
	129
48c93112 BH	130	config PPC_BOOK3S
	131	def_bool y
	132	depends on PPC_BOOK3S_32 \|\| PPC_BOOK3S_64
28794d34	133
2d27cfd3 BH	134	config PPC_BOOK3E
	135	def_bool y
	136	depends on PPC_BOOK3E_64
	137
5b7c3c91 BH	138	config 6xx
	139	def_bool y
	140	depends on PPC32 && PPC_BOOK3S
7325927e	141	select PPC_HAVE_PMU_SUPPORT
5b7c3c91	142
a0ae9c7c	143	config POWER4
28794d34	144	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	145	def_bool y
a0ae9c7c AB	146
3164cccd AB	147	config TUNE_CELL
3164cccd AB	148	bool "Optimize for Cell Broadband Engine"
28794d34	149	depends on PPC64 && PPC_BOOK3S
3164cccd AB	150	help
	151	Cause the compiler to optimize for the PPE of the Cell Broadband
	152	Engine. This will make the code run considerably faster on Cell
	153	but somewhat slower on other machines. This option only changes
	154	the scheduling of instructions, not the selection of instructions
	155	itself, so the resulting kernel will keep running on all other
ff2d7587	156	machines.
3164cccd	157
a0ae9c7c AB	158	# this is temp to handle compat with arch=ppc
	159	config 8xx
	160	bool
	161
a0ae9c7c	162	config E500
39aef685	163	select FSL_EMB_PERFMON
4490c06b	164	select PPC_FSL_BOOK3E
a0ae9c7c AB	165	bool
a0ae9c7c AB	166
3dfa8773 KG	167	config PPC_E500MC
	168	bool "e500mc Support"
	169	select PPC_FPU
555eae97	170	select COMMON_CLK
3dfa8773	171	depends on E500
9653018b SW	172	help
	173	This must be enabled for running on e500mc (and derivatives
	174	such as e5500/e6500), and must be disabled for running on
	175	e500v1 or e500v2.
3dfa8773	176
a0ae9c7c AB	177	config PPC_FPU
	178	bool
	179	default y if PPC64
	180
5753c082 KG	181	config FSL_EMB_PERFMON
	182	bool "Freescale Embedded Perfmon"
	183	depends on E500 \|\| PPC_83xx
	184	help
	185	This is the Performance Monitor support found on the e500 core
	186	and some e300 cores (c3 and c4). Select this only if your
	187	core supports the Embedded Performance Monitor APU
	188
a1110654 SW	189	config FSL_EMB_PERF_EVENT
	190	bool
	191	depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
	192	default y
	193
	194	config FSL_EMB_PERF_EVENT_E500
	195	bool
	196	depends on FSL_EMB_PERF_EVENT && E500
	197	default y
	198
a0ae9c7c AB	199	config 4xx
	200	bool
	201	depends on 40x \|\| 44x
	202	default y
	203
	204	config BOOKE
	205	bool
2d27cfd3	206	depends on E200 \|\| E500 \|\| 44x \|\| PPC_BOOK3E
a0ae9c7c AB	207	default y
	208
	209	config FSL_BOOKE
	210	bool
4490c06b	211	depends on (E200 \|\| E500) && PPC32
a0ae9c7c AB	212	default y
a0ae9c7c AB	213
4490c06b KG	214	# this is for common code between PPC32 & PPC64 FSL BOOKE
	215	config PPC_FSL_BOOK3E
	216	bool
	217	select FSL_EMB_PERFMON
1ece355b	218	select PPC_SMP_MUXED_IPI
a475c8ec	219	select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT \|\| PPC64
440bc685	220	select PPC_DOORBELL
4490c06b	221	default y if FSL_BOOKE
39aef685	222
a0ae9c7c AB	223	config PTE_64BIT
a0ae9c7c AB	224	bool
4ee7084e BB	225	depends on 44x \|\| E500 \|\| PPC_86xx
4ee7084e BB	226	default y if PHYS_64BIT
a0ae9c7c AB	227
a0ae9c7c AB	228	config PHYS_64BIT
4ee7084e BB	229	bool 'Large physical address support' if E500 \|\| PPC_86xx
4ee7084e BB	230	depends on (44x \|\| E500 \|\| PPC_86xx) && !PPC_83xx && !PPC_82xx
a0ae9c7c AB	231	---help---
a0ae9c7c AB	232	This option enables kernel support for larger than 32-bit physical
4ee7084e BB	233	addresses. This feature may not be available on all cores.
	234
	235	If you have more than 3.5GB of RAM or so, you also need to enable
	236	SWIOTLB under Kernel Options for this to work. The actual number
	237	is platform-dependent.
a0ae9c7c AB	238
	239	If in doubt, say N here.
	240
	241	config ALTIVEC
	242	bool "AltiVec Support"
cd66cc2e	243	depends on 6xx \|\| POWER4 \|\| (PPC_E500MC && PPC64)
a0ae9c7c AB	244	---help---
	245	This option enables kernel support for the Altivec extensions to the
	246	PowerPC processor. The kernel currently supports saving and restoring
	247	altivec registers, and turning on the 'altivec enable' bit so user
	248	processes can execute altivec instructions.
	249
	250	This option is only usefully if you have a processor that supports
	251	altivec (G4, otherwise known as 74xx series), but does not have
	252	any affect on a non-altivec cpu (it does, however add code to the
	253	kernel).
	254
	255	If in doubt, say Y here.
	256
96d5b52c MN	257	config VSX
	258	bool "VSX Support"
	259	depends on POWER4 && ALTIVEC && PPC_FPU
	260	---help---
	261
	262	This option enables kernel support for the Vector Scaler extensions
	263	to the PowerPC processor. The kernel currently supports saving and
	264	restoring VSX registers, and turning on the 'VSX enable' bit so user
	265	processes can execute VSX instructions.
	266
	267	This option is only useful if you have a processor that supports
	268	VSX (P7 and above), but does not have any affect on a non-VSX
	269	CPUs (it does, however add code to the kernel).
	270
	271	If in doubt, say Y here.
	272
851d2e2f THFL	273	config PPC_ICSWX
851d2e2f THFL	274	bool "Support for PowerPC icswx coprocessor instruction"
fb5a5157	275	depends on POWER4
851d2e2f THFL	276	default n
	277	---help---
	278
	279	This option enables kernel support for the PowerPC Initiate
	280	Coprocessor Store Word (icswx) coprocessor instruction on POWER7
	281	or newer processors.
	282
	283	This option is only useful if you have a processor that supports
	284	the icswx coprocessor instruction. It does not have any effect
	285	on processors without the icswx coprocessor instruction.
	286
	287	This option slightly increases kernel memory usage.
	288
	289	If in doubt, say N here.
	290
9d670280 JX	291	config PPC_ICSWX_PID
	292	bool "icswx requires direct PID management"
	293	depends on PPC_ICSWX && POWER4
	294	default y
	295	---help---
c3dcf53a	296	The PID register in server is used explicitly for ICSWX. In
6b2aac42	297	embedded systems PID management is done by the system.
9d670280	298
c3dcf53a JX	299	config PPC_ICSWX_USE_SIGILL
	300	bool "Should a bad CT cause a SIGILL?"
	301	depends on PPC_ICSWX
	302	default n
	303	---help---
	304	Should a bad CT used for "non-record form ICSWX" cause an
6b2aac42	305	illegal instruction signal or should it be silent as
c3dcf53a JX	306	architected.
	307
	308	If in doubt, say N here.
	309
a0ae9c7c AB	310	config SPE
a0ae9c7c AB	311	bool "SPE Support"
3dfa8773	312	depends on E200 \|\| (E500 && !PPC_E500MC)
a0ae9c7c AB	313	default y
	314	---help---
	315	This option enables kernel support for the Signal Processing
	316	Extensions (SPE) to the PowerPC processor. The kernel currently
	317	supports saving and restoring SPE registers, and turning on the
	318	'spe enable' bit so user processes can execute SPE instructions.
	319
	320	This option is only useful if you have a processor that supports
	321	SPE (e500, otherwise known as 85xx series), but does not have any
	322	effect on a non-spe cpu (it does, however add code to the kernel).
	323
	324	If in doubt, say Y here.
	325
	326	config PPC_STD_MMU
5b7c3c91 BH	327	def_bool y
5b7c3c91 BH	328	depends on PPC_BOOK3S
a0ae9c7c AB	329
	330	config PPC_STD_MMU_32
	331	def_bool y
	332	depends on PPC_STD_MMU && PPC32
	333
5e696617 BH	334	config PPC_STD_MMU_64
	335	def_bool y
	336	depends on PPC_STD_MMU && PPC64
	337
	338	config PPC_MMU_NOHASH
	339	def_bool y
	340	depends on !PPC_STD_MMU
	341
70fe3af8 KG	342	config PPC_BOOK3E_MMU
70fe3af8 KG	343	def_bool y
2d27cfd3	344	depends on FSL_BOOKE \|\| PPC_BOOK3E
70fe3af8	345
a0ae9c7c AB	346	config PPC_MM_SLICES
a0ae9c7c AB	347	bool
a475c8ec	348	default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) \|\| (PPC_STD_MMU_64 && PPC_64K_PAGES)
a0ae9c7c AB	349	default n
a0ae9c7c AB	350
105988c0 PM	351	config PPC_HAVE_PMU_SUPPORT
	352	bool
	353
	354	config PPC_PERF_CTRS
	355	def_bool y
cdd6c482	356	depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
105988c0	357	help
cdd6c482	358	This enables the powerpc-specific perf_event back-end.
105988c0	359
a0ae9c7c	360	config SMP
e7f75ad0	361	depends on PPC_BOOK3S \|\| PPC_BOOK3E \|\| FSL_BOOKE \|\| PPC_47x
a0ae9c7c AB	362	bool "Symmetric multi-processing support"
	363	---help---
	364	This enables support for systems with more than one CPU. If you have
	365	a system with only one CPU, say N. If you have a system with more
	366	than one CPU, say Y. Note that the kernel does not currently
	367	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	368	since they have inadequate hardware support for multiprocessor
	369	operation.
	370
	371	If you say N here, the kernel will run on single and multiprocessor
	372	machines, but will use only one CPU of a multiprocessor machine. If
	373	you say Y here, the kernel will run on single-processor machines.
	374	On a single-processor machine, the kernel will run faster if you say
	375	N here.
	376
	377	If you don't know what to do here, say N.
	378
	379	config NR_CPUS
2d8ae638 MN	380	int "Maximum number of CPUs (2-8192)"
2d8ae638 MN	381	range 2 8192
a0ae9c7c AB	382	depends on SMP
	383	default "32" if PPC64
	384	default "4"
	385
	386	config NOT_COHERENT_CACHE
	387	bool
b91a143b	388	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x \|\| GAMECUBE_COMMON
e7f75ad0	389	default n if PPC_47x
a0ae9c7c AB	390	default y
a0ae9c7c AB	391
f8eb77d6	392	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	393	bool
a0ae9c7c AB	394
440bc685 IM	395	config PPC_DOORBELL
	396	bool
	397	default n
	398
a0ae9c7c	399	endmenu
7c105b63	400
962bc221 AB	401	choice
	402	prompt "Endianness selection"
	403	default CPU_BIG_ENDIAN
7c105b63 AB	404	help
	405	This option selects whether a big endian or little endian kernel will
	406	be built.
	407
962bc221 AB	408	config CPU_BIG_ENDIAN
	409	bool "Build big endian kernel"
	410	help
	411	Build a big endian kernel.
	412
	413	If unsure, select this option.
	414
	415	config CPU_LITTLE_ENDIAN
	416	bool "Build little endian kernel"
147c0516	417	select PPC64_BOOT_WRAPPER
962bc221 AB	418	help
	419	Build a little endian kernel.
	420
7c105b63 AB	421	Note that if cross compiling a little endian kernel,
	422	CROSS_COMPILE must point to a toolchain capable of targeting
	423	little endian powerpc.
962bc221 AB	424
962bc221 AB	425	endchoice
147c0516 CLG	426
	427	config PPC64_BOOT_WRAPPER
	428	def_bool n
	429	depends on CPU_LITTLE_ENDIAN