[net-next-2.6.git] / arch / powerpc / platforms / Kconfig.cputype

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"
	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 ?

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 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
	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 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
	default y


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 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
	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
	default y

config CHECK_CACHE_COHERENCY
	bool

endmenu
Commit	Line	Data
a0ae9c7c AB	1	config PPC64
	2	bool "64-bit kernel"
	3	default n
105988c0	4	select PPC_HAVE_PMU_SUPPORT
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
	45	config 44x
	46	bool "AMCC 44x"
	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 BH	71	select PPC_FPU
5b7c3c91 BH	72
2d27cfd3 BH	73	config PPC_BOOK3E_64
	74	bool "Embedded processors"
	75	select PPC_FPU # Make it a choice ?
	76
	77	endchoice
	78
48c93112 BH	79	config PPC_BOOK3S
	80	def_bool y
	81	depends on PPC_BOOK3S_32 \|\| PPC_BOOK3S_64
28794d34	82
2d27cfd3 BH	83	config PPC_BOOK3E
	84	def_bool y
	85	depends on PPC_BOOK3E_64
	86
a0ae9c7c AB	87	config POWER4_ONLY
a0ae9c7c AB	88	bool "Optimize for POWER4"
28794d34	89	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	90	default n
	91	---help---
	92	Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
	93	The resulting binary will not work on POWER3 or RS64 processors
	94	when compiled with binutils 2.15 or later.
	95
5b7c3c91 BH	96	config 6xx
	97	def_bool y
	98	depends on PPC32 && PPC_BOOK3S
7325927e	99	select PPC_HAVE_PMU_SUPPORT
5b7c3c91	100
a0ae9c7c AB	101	config POWER3
a0ae9c7c AB	102	bool
28794d34	103	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	104	default y if !POWER4_ONLY
	105
	106	config POWER4
28794d34	107	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	108	def_bool y
a0ae9c7c AB	109
3164cccd AB	110	config TUNE_CELL
3164cccd AB	111	bool "Optimize for Cell Broadband Engine"
28794d34	112	depends on PPC64 && PPC_BOOK3S
3164cccd AB	113	help
	114	Cause the compiler to optimize for the PPE of the Cell Broadband
	115	Engine. This will make the code run considerably faster on Cell
	116	but somewhat slower on other machines. This option only changes
	117	the scheduling of instructions, not the selection of instructions
	118	itself, so the resulting kernel will keep running on all other
	119	machines. When building a kernel that is supposed to run only
	120	on Cell, you should also select the POWER4_ONLY option.
	121
a0ae9c7c AB	122	# this is temp to handle compat with arch=ppc
	123	config 8xx
	124	bool
	125
a0ae9c7c	126	config E500
39aef685	127	select FSL_EMB_PERFMON
a0ae9c7c AB	128	bool
a0ae9c7c AB	129
3dfa8773 KG	130	config PPC_E500MC
	131	bool "e500mc Support"
	132	select PPC_FPU
	133	depends on E500
	134
a0ae9c7c AB	135	config PPC_FPU
	136	bool
	137	default y if PPC64
	138
5753c082 KG	139	config FSL_EMB_PERFMON
	140	bool "Freescale Embedded Perfmon"
	141	depends on E500 \|\| PPC_83xx
	142	help
	143	This is the Performance Monitor support found on the e500 core
	144	and some e300 cores (c3 and c4). Select this only if your
	145	core supports the Embedded Performance Monitor APU
	146
a0ae9c7c AB	147	config 4xx
	148	bool
	149	depends on 40x \|\| 44x
	150	default y
	151
	152	config BOOKE
	153	bool
2d27cfd3	154	depends on E200 \|\| E500 \|\| 44x \|\| PPC_BOOK3E
a0ae9c7c AB	155	default y
	156
	157	config FSL_BOOKE
	158	bool
	159	depends on E200 \|\| E500
	160	default y
	161
39aef685	162
a0ae9c7c AB	163	config PTE_64BIT
a0ae9c7c AB	164	bool
4ee7084e BB	165	depends on 44x \|\| E500 \|\| PPC_86xx
4ee7084e BB	166	default y if PHYS_64BIT
a0ae9c7c AB	167
a0ae9c7c AB	168	config PHYS_64BIT
4ee7084e BB	169	bool 'Large physical address support' if E500 \|\| PPC_86xx
4ee7084e BB	170	depends on (44x \|\| E500 \|\| PPC_86xx) && !PPC_83xx && !PPC_82xx
a0ae9c7c AB	171	---help---
a0ae9c7c AB	172	This option enables kernel support for larger than 32-bit physical
4ee7084e BB	173	addresses. This feature may not be available on all cores.
	174
	175	If you have more than 3.5GB of RAM or so, you also need to enable
	176	SWIOTLB under Kernel Options for this to work. The actual number
	177	is platform-dependent.
a0ae9c7c AB	178
	179	If in doubt, say N here.
	180
	181	config ALTIVEC
	182	bool "AltiVec Support"
28794d34	183	depends on 6xx \|\| POWER4
a0ae9c7c AB	184	---help---
	185	This option enables kernel support for the Altivec extensions to the
	186	PowerPC processor. The kernel currently supports saving and restoring
	187	altivec registers, and turning on the 'altivec enable' bit so user
	188	processes can execute altivec instructions.
	189
	190	This option is only usefully if you have a processor that supports
	191	altivec (G4, otherwise known as 74xx series), but does not have
	192	any affect on a non-altivec cpu (it does, however add code to the
	193	kernel).
	194
	195	If in doubt, say Y here.
	196
96d5b52c MN	197	config VSX
	198	bool "VSX Support"
	199	depends on POWER4 && ALTIVEC && PPC_FPU
	200	---help---
	201
	202	This option enables kernel support for the Vector Scaler extensions
	203	to the PowerPC processor. The kernel currently supports saving and
	204	restoring VSX registers, and turning on the 'VSX enable' bit so user
	205	processes can execute VSX instructions.
	206
	207	This option is only useful if you have a processor that supports
	208	VSX (P7 and above), but does not have any affect on a non-VSX
	209	CPUs (it does, however add code to the kernel).
	210
	211	If in doubt, say Y here.
	212
a0ae9c7c AB	213	config SPE
a0ae9c7c AB	214	bool "SPE Support"
3dfa8773	215	depends on E200 \|\| (E500 && !PPC_E500MC)
a0ae9c7c AB	216	default y
	217	---help---
	218	This option enables kernel support for the Signal Processing
	219	Extensions (SPE) to the PowerPC processor. The kernel currently
	220	supports saving and restoring SPE registers, and turning on the
	221	'spe enable' bit so user processes can execute SPE instructions.
	222
	223	This option is only useful if you have a processor that supports
	224	SPE (e500, otherwise known as 85xx series), but does not have any
	225	effect on a non-spe cpu (it does, however add code to the kernel).
	226
	227	If in doubt, say Y here.
	228
	229	config PPC_STD_MMU
5b7c3c91 BH	230	def_bool y
5b7c3c91 BH	231	depends on PPC_BOOK3S
a0ae9c7c AB	232
	233	config PPC_STD_MMU_32
	234	def_bool y
	235	depends on PPC_STD_MMU && PPC32
	236
5e696617 BH	237	config PPC_STD_MMU_64
	238	def_bool y
	239	depends on PPC_STD_MMU && PPC64
	240
	241	config PPC_MMU_NOHASH
	242	def_bool y
	243	depends on !PPC_STD_MMU
	244
2d27cfd3 BH	245	config PPC_MMU_NOHASH_32
	246	def_bool y
	247	depends on PPC_MMU_NOHASH && PPC32
	248
	249	config PPC_MMU_NOHASH_64
	250	def_bool y
	251	depends on PPC_MMU_NOHASH && PPC64
	252
70fe3af8 KG	253	config PPC_BOOK3E_MMU
70fe3af8 KG	254	def_bool y
2d27cfd3	255	depends on FSL_BOOKE \|\| PPC_BOOK3E
70fe3af8	256
a0ae9c7c AB	257	config PPC_MM_SLICES
a0ae9c7c AB	258	bool
ca9153a3	259	default y if HUGETLB_PAGE \|\| (PPC_STD_MMU_64 && PPC_64K_PAGES)
a0ae9c7c AB	260	default n
	261
	262	config VIRT_CPU_ACCOUNTING
	263	bool "Deterministic task and CPU time accounting"
	264	depends on PPC64
	265	default y
	266	help
	267	Select this option to enable more accurate task and CPU time
	268	accounting. This is done by reading a CPU counter on each
	269	kernel entry and exit and on transitions within the kernel
	270	between system, softirq and hardirq state, so there is a
	271	small performance impact. This also enables accounting of
	272	stolen time on logically-partitioned systems running on
	273	IBM POWER5-based machines.
	274
	275	If in doubt, say Y here.
	276
105988c0 PM	277	config PPC_HAVE_PMU_SUPPORT
	278	bool
	279
	280	config PPC_PERF_CTRS
	281	def_bool y
cdd6c482	282	depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
105988c0	283	help
cdd6c482	284	This enables the powerpc-specific perf_event back-end.
105988c0	285
a0ae9c7c	286	config SMP
2d27cfd3	287	depends on PPC_BOOK3S \|\| PPC_BOOK3E \|\| FSL_BOOKE
a0ae9c7c AB	288	bool "Symmetric multi-processing support"
	289	---help---
	290	This enables support for systems with more than one CPU. If you have
	291	a system with only one CPU, say N. If you have a system with more
	292	than one CPU, say Y. Note that the kernel does not currently
	293	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	294	since they have inadequate hardware support for multiprocessor
	295	operation.
	296
	297	If you say N here, the kernel will run on single and multiprocessor
	298	machines, but will use only one CPU of a multiprocessor machine. If
	299	you say Y here, the kernel will run on single-processor machines.
	300	On a single-processor machine, the kernel will run faster if you say
	301	N here.
	302
	303	If you don't know what to do here, say N.
	304
	305	config NR_CPUS
2d8ae638 MN	306	int "Maximum number of CPUs (2-8192)"
2d8ae638 MN	307	range 2 8192
a0ae9c7c AB	308	depends on SMP
	309	default "32" if PPC64
	310	default "4"
	311
	312	config NOT_COHERENT_CACHE
	313	bool
e177edcd	314	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x
a0ae9c7c AB	315	default y
a0ae9c7c AB	316
f8eb77d6	317	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	318	bool
	319
	320	endmenu