[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
	select FSL_SOC
	select MPC85xx

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 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 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 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_COUNTERS && PPC_HAVE_PMU_SUPPORT
       help
         This enables the powerpc-specific perf_counter 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
	31	select FSL_SOC
3a83156b	32	select MPC85xx
a0ae9c7c	33
a0ae9c7c AB	34	config PPC_8xx
	35	bool "Freescale 8xx"
	36	select FSL_SOC
	37	select 8xx
1088a209	38	select PPC_LIB_RHEAP
a0ae9c7c AB	39
	40	config 40x
	41	bool "AMCC 40x"
	42	select PPC_DCR_NATIVE
9dae8afd	43	select PPC_UDBG_16550
93173ce2	44	select 4xx_SOC
b500563b	45	select PPC_PCI_CHOICE
a0ae9c7c AB	46
	47	config 44x
	48	bool "AMCC 44x"
	49	select PPC_DCR_NATIVE
1d5499b5	50	select PPC_UDBG_16550
93173ce2	51	select 4xx_SOC
b500563b	52	select PPC_PCI_CHOICE
4ee7084e	53	select PHYS_64BIT
a0ae9c7c AB	54
	55	config E200
	56	bool "Freescale e200"
	57
	58	endchoice
	59
2d27cfd3 BH	60	choice
2d27cfd3 BH	61	prompt "Processor Type"
5b7c3c91	62	depends on PPC64
2d27cfd3 BH	63	help
	64	There are two families of 64 bit PowerPC chips supported.
	65	The most common ones are the desktop and server CPUs
	66	(POWER3, RS64, POWER4, POWER5, POWER5+, POWER6, ...)
	67
	68	The other are the "embedded" processors compliant with the
	69	"Book 3E" variant of the architecture
	70
	71	config PPC_BOOK3S_64
	72	bool "Server processors"
5b7c3c91 BH	73	select PPC_FPU
5b7c3c91 BH	74
2d27cfd3 BH	75	config PPC_BOOK3E_64
	76	bool "Embedded processors"
	77	select PPC_FPU # Make it a choice ?
	78
	79	endchoice
	80
48c93112 BH	81	config PPC_BOOK3S
	82	def_bool y
	83	depends on PPC_BOOK3S_32 \|\| PPC_BOOK3S_64
28794d34	84
2d27cfd3 BH	85	config PPC_BOOK3E
	86	def_bool y
	87	depends on PPC_BOOK3E_64
	88
a0ae9c7c AB	89	config POWER4_ONLY
a0ae9c7c AB	90	bool "Optimize for POWER4"
28794d34	91	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	92	default n
	93	---help---
	94	Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
	95	The resulting binary will not work on POWER3 or RS64 processors
	96	when compiled with binutils 2.15 or later.
	97
5b7c3c91 BH	98	config 6xx
	99	def_bool y
	100	depends on PPC32 && PPC_BOOK3S
7325927e	101	select PPC_HAVE_PMU_SUPPORT
5b7c3c91	102
a0ae9c7c AB	103	config POWER3
a0ae9c7c AB	104	bool
28794d34	105	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	106	default y if !POWER4_ONLY
	107
	108	config POWER4
28794d34	109	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	110	def_bool y
a0ae9c7c AB	111
3164cccd AB	112	config TUNE_CELL
3164cccd AB	113	bool "Optimize for Cell Broadband Engine"
28794d34	114	depends on PPC64 && PPC_BOOK3S
3164cccd AB	115	help
	116	Cause the compiler to optimize for the PPE of the Cell Broadband
	117	Engine. This will make the code run considerably faster on Cell
	118	but somewhat slower on other machines. This option only changes
	119	the scheduling of instructions, not the selection of instructions
	120	itself, so the resulting kernel will keep running on all other
	121	machines. When building a kernel that is supposed to run only
	122	on Cell, you should also select the POWER4_ONLY option.
	123
a0ae9c7c AB	124	# this is temp to handle compat with arch=ppc
	125	config 8xx
	126	bool
	127
a0ae9c7c	128	config E500
39aef685	129	select FSL_EMB_PERFMON
a0ae9c7c AB	130	bool
a0ae9c7c AB	131
3dfa8773 KG	132	config PPC_E500MC
	133	bool "e500mc Support"
	134	select PPC_FPU
	135	depends on E500
	136
a0ae9c7c AB	137	config PPC_FPU
	138	bool
	139	default y if PPC64
	140
	141	config 4xx
	142	bool
	143	depends on 40x \|\| 44x
	144	default y
	145
	146	config BOOKE
	147	bool
2d27cfd3	148	depends on E200 \|\| E500 \|\| 44x \|\| PPC_BOOK3E
a0ae9c7c AB	149	default y
	150
	151	config FSL_BOOKE
	152	bool
	153	depends on E200 \|\| E500
	154	default y
	155
39aef685	156	config FSL_EMB_PERFMON
ad562c71 AF	157	bool "Freescale Embedded Perfmon"
	158	depends on E500 \|\| PPC_83xx
	159	help
	160	This is the Performance Monitor support found on the e500 core
	161	and some e300 cores (c3 and c4). Select this only if your
	162	core supports the Embedded Performance Monitor APU
39aef685	163
a0ae9c7c AB	164	config PTE_64BIT
a0ae9c7c AB	165	bool
4ee7084e BB	166	depends on 44x \|\| E500 \|\| PPC_86xx
4ee7084e BB	167	default y if PHYS_64BIT
a0ae9c7c AB	168
a0ae9c7c AB	169	config PHYS_64BIT
4ee7084e BB	170	bool 'Large physical address support' if E500 \|\| PPC_86xx
4ee7084e BB	171	depends on (44x \|\| E500 \|\| PPC_86xx) && !PPC_83xx && !PPC_82xx
a0ae9c7c AB	172	---help---
a0ae9c7c AB	173	This option enables kernel support for larger than 32-bit physical
4ee7084e BB	174	addresses. This feature may not be available on all cores.
	175
	176	If you have more than 3.5GB of RAM or so, you also need to enable
	177	SWIOTLB under Kernel Options for this to work. The actual number
	178	is platform-dependent.
a0ae9c7c AB	179
	180	If in doubt, say N here.
	181
	182	config ALTIVEC
	183	bool "AltiVec Support"
28794d34	184	depends on 6xx \|\| POWER4
a0ae9c7c AB	185	---help---
	186	This option enables kernel support for the Altivec extensions to the
	187	PowerPC processor. The kernel currently supports saving and restoring
	188	altivec registers, and turning on the 'altivec enable' bit so user
	189	processes can execute altivec instructions.
	190
	191	This option is only usefully if you have a processor that supports
	192	altivec (G4, otherwise known as 74xx series), but does not have
	193	any affect on a non-altivec cpu (it does, however add code to the
	194	kernel).
	195
	196	If in doubt, say Y here.
	197
96d5b52c MN	198	config VSX
	199	bool "VSX Support"
	200	depends on POWER4 && ALTIVEC && PPC_FPU
	201	---help---
	202
	203	This option enables kernel support for the Vector Scaler extensions
	204	to the PowerPC processor. The kernel currently supports saving and
	205	restoring VSX registers, and turning on the 'VSX enable' bit so user
	206	processes can execute VSX instructions.
	207
	208	This option is only useful if you have a processor that supports
	209	VSX (P7 and above), but does not have any affect on a non-VSX
	210	CPUs (it does, however add code to the kernel).
	211
	212	If in doubt, say Y here.
	213
a0ae9c7c AB	214	config SPE
a0ae9c7c AB	215	bool "SPE Support"
3dfa8773	216	depends on E200 \|\| (E500 && !PPC_E500MC)
a0ae9c7c AB	217	default y
	218	---help---
	219	This option enables kernel support for the Signal Processing
	220	Extensions (SPE) to the PowerPC processor. The kernel currently
	221	supports saving and restoring SPE registers, and turning on the
	222	'spe enable' bit so user processes can execute SPE instructions.
	223
	224	This option is only useful if you have a processor that supports
	225	SPE (e500, otherwise known as 85xx series), but does not have any
	226	effect on a non-spe cpu (it does, however add code to the kernel).
	227
	228	If in doubt, say Y here.
	229
	230	config PPC_STD_MMU
5b7c3c91 BH	231	def_bool y
5b7c3c91 BH	232	depends on PPC_BOOK3S
a0ae9c7c AB	233
	234	config PPC_STD_MMU_32
	235	def_bool y
	236	depends on PPC_STD_MMU && PPC32
	237
5e696617 BH	238	config PPC_STD_MMU_64
	239	def_bool y
	240	depends on PPC_STD_MMU && PPC64
	241
	242	config PPC_MMU_NOHASH
	243	def_bool y
	244	depends on !PPC_STD_MMU
	245
2d27cfd3 BH	246	config PPC_MMU_NOHASH_32
	247	def_bool y
	248	depends on PPC_MMU_NOHASH && PPC32
	249
	250	config PPC_MMU_NOHASH_64
	251	def_bool y
	252	depends on PPC_MMU_NOHASH && PPC64
	253
70fe3af8 KG	254	config PPC_BOOK3E_MMU
70fe3af8 KG	255	def_bool y
2d27cfd3	256	depends on FSL_BOOKE \|\| PPC_BOOK3E
70fe3af8	257
a0ae9c7c AB	258	config PPC_MM_SLICES
a0ae9c7c AB	259	bool
ca9153a3	260	default y if HUGETLB_PAGE \|\| (PPC_STD_MMU_64 && PPC_64K_PAGES)
a0ae9c7c AB	261	default n
	262
	263	config VIRT_CPU_ACCOUNTING
	264	bool "Deterministic task and CPU time accounting"
	265	depends on PPC64
	266	default y
	267	help
	268	Select this option to enable more accurate task and CPU time
	269	accounting. This is done by reading a CPU counter on each
	270	kernel entry and exit and on transitions within the kernel
	271	between system, softirq and hardirq state, so there is a
	272	small performance impact. This also enables accounting of
	273	stolen time on logically-partitioned systems running on
	274	IBM POWER5-based machines.
	275
	276	If in doubt, say Y here.
	277
105988c0 PM	278	config PPC_HAVE_PMU_SUPPORT
	279	bool
	280
	281	config PPC_PERF_CTRS
	282	def_bool y
	283	depends on PERF_COUNTERS && PPC_HAVE_PMU_SUPPORT
	284	help
	285	This enables the powerpc-specific perf_counter back-end.
	286
a0ae9c7c	287	config SMP
2d27cfd3	288	depends on PPC_BOOK3S \|\| PPC_BOOK3E \|\| FSL_BOOKE
a0ae9c7c AB	289	bool "Symmetric multi-processing support"
	290	---help---
	291	This enables support for systems with more than one CPU. If you have
	292	a system with only one CPU, say N. If you have a system with more
	293	than one CPU, say Y. Note that the kernel does not currently
	294	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	295	since they have inadequate hardware support for multiprocessor
	296	operation.
	297
	298	If you say N here, the kernel will run on single and multiprocessor
	299	machines, but will use only one CPU of a multiprocessor machine. If
	300	you say Y here, the kernel will run on single-processor machines.
	301	On a single-processor machine, the kernel will run faster if you say
	302	N here.
	303
	304	If you don't know what to do here, say N.
	305
	306	config NR_CPUS
2d8ae638 MN	307	int "Maximum number of CPUs (2-8192)"
2d8ae638 MN	308	range 2 8192
a0ae9c7c AB	309	depends on SMP
	310	default "32" if PPC64
	311	default "4"
	312
	313	config NOT_COHERENT_CACHE
	314	bool
e177edcd	315	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x
a0ae9c7c AB	316	default y
a0ae9c7c AB	317
f8eb77d6	318	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	319	bool
	320
	321	endmenu