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

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

config PPC_BOOK3S
	default y
	depends on PPC64
	select PPC_FPU


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

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
	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_BOOK3E_MMU
	def_bool y
	depends on FSL_BOOKE

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 SMP
	depends on PPC_STD_MMU || 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
d662ed26	4	select HAVE_PERF_COUNTERS
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
5b7c3c91	24	config PPC_BOOK3S
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
28794d34	60	config PPC_BOOK3S
5b7c3c91 BH	61	default y
	62	depends on PPC64
	63	select PPC_FPU
	64
28794d34	65
a0ae9c7c AB	66	config POWER4_ONLY
a0ae9c7c AB	67	bool "Optimize for POWER4"
28794d34	68	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	69	default n
	70	---help---
	71	Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
	72	The resulting binary will not work on POWER3 or RS64 processors
	73	when compiled with binutils 2.15 or later.
	74
5b7c3c91 BH	75	config 6xx
	76	def_bool y
	77	depends on PPC32 && PPC_BOOK3S
	78
a0ae9c7c AB	79	config POWER3
a0ae9c7c AB	80	bool
28794d34	81	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	82	default y if !POWER4_ONLY
	83
	84	config POWER4
28794d34	85	depends on PPC64 && PPC_BOOK3S
a0ae9c7c AB	86	def_bool y
a0ae9c7c AB	87
3164cccd AB	88	config TUNE_CELL
3164cccd AB	89	bool "Optimize for Cell Broadband Engine"
28794d34	90	depends on PPC64 && PPC_BOOK3S
3164cccd AB	91	help
	92	Cause the compiler to optimize for the PPE of the Cell Broadband
	93	Engine. This will make the code run considerably faster on Cell
	94	but somewhat slower on other machines. This option only changes
	95	the scheduling of instructions, not the selection of instructions
	96	itself, so the resulting kernel will keep running on all other
	97	machines. When building a kernel that is supposed to run only
	98	on Cell, you should also select the POWER4_ONLY option.
	99
a0ae9c7c AB	100	# this is temp to handle compat with arch=ppc
	101	config 8xx
	102	bool
	103
a0ae9c7c	104	config E500
39aef685	105	select FSL_EMB_PERFMON
a0ae9c7c AB	106	bool
a0ae9c7c AB	107
3dfa8773 KG	108	config PPC_E500MC
	109	bool "e500mc Support"
	110	select PPC_FPU
	111	depends on E500
	112
a0ae9c7c AB	113	config PPC_FPU
	114	bool
	115	default y if PPC64
	116
	117	config 4xx
	118	bool
	119	depends on 40x \|\| 44x
	120	default y
	121
	122	config BOOKE
	123	bool
	124	depends on E200 \|\| E500 \|\| 44x
	125	default y
	126
	127	config FSL_BOOKE
	128	bool
	129	depends on E200 \|\| E500
	130	default y
	131
39aef685	132	config FSL_EMB_PERFMON
ad562c71 AF	133	bool "Freescale Embedded Perfmon"
	134	depends on E500 \|\| PPC_83xx
	135	help
	136	This is the Performance Monitor support found on the e500 core
	137	and some e300 cores (c3 and c4). Select this only if your
	138	core supports the Embedded Performance Monitor APU
39aef685	139
a0ae9c7c AB	140	config PTE_64BIT
a0ae9c7c AB	141	bool
4ee7084e BB	142	depends on 44x \|\| E500 \|\| PPC_86xx
4ee7084e BB	143	default y if PHYS_64BIT
a0ae9c7c AB	144
a0ae9c7c AB	145	config PHYS_64BIT
4ee7084e BB	146	bool 'Large physical address support' if E500 \|\| PPC_86xx
4ee7084e BB	147	depends on (44x \|\| E500 \|\| PPC_86xx) && !PPC_83xx && !PPC_82xx
a0ae9c7c AB	148	---help---
a0ae9c7c AB	149	This option enables kernel support for larger than 32-bit physical
4ee7084e BB	150	addresses. This feature may not be available on all cores.
	151
	152	If you have more than 3.5GB of RAM or so, you also need to enable
	153	SWIOTLB under Kernel Options for this to work. The actual number
	154	is platform-dependent.
a0ae9c7c AB	155
	156	If in doubt, say N here.
	157
	158	config ALTIVEC
	159	bool "AltiVec Support"
28794d34	160	depends on 6xx \|\| POWER4
a0ae9c7c AB	161	---help---
	162	This option enables kernel support for the Altivec extensions to the
	163	PowerPC processor. The kernel currently supports saving and restoring
	164	altivec registers, and turning on the 'altivec enable' bit so user
	165	processes can execute altivec instructions.
	166
	167	This option is only usefully if you have a processor that supports
	168	altivec (G4, otherwise known as 74xx series), but does not have
	169	any affect on a non-altivec cpu (it does, however add code to the
	170	kernel).
	171
	172	If in doubt, say Y here.
	173
96d5b52c MN	174	config VSX
	175	bool "VSX Support"
	176	depends on POWER4 && ALTIVEC && PPC_FPU
	177	---help---
	178
	179	This option enables kernel support for the Vector Scaler extensions
	180	to the PowerPC processor. The kernel currently supports saving and
	181	restoring VSX registers, and turning on the 'VSX enable' bit so user
	182	processes can execute VSX instructions.
	183
	184	This option is only useful if you have a processor that supports
	185	VSX (P7 and above), but does not have any affect on a non-VSX
	186	CPUs (it does, however add code to the kernel).
	187
	188	If in doubt, say Y here.
	189
a0ae9c7c AB	190	config SPE
a0ae9c7c AB	191	bool "SPE Support"
3dfa8773	192	depends on E200 \|\| (E500 && !PPC_E500MC)
a0ae9c7c AB	193	default y
	194	---help---
	195	This option enables kernel support for the Signal Processing
	196	Extensions (SPE) to the PowerPC processor. The kernel currently
	197	supports saving and restoring SPE registers, and turning on the
	198	'spe enable' bit so user processes can execute SPE instructions.
	199
	200	This option is only useful if you have a processor that supports
	201	SPE (e500, otherwise known as 85xx series), but does not have any
	202	effect on a non-spe cpu (it does, however add code to the kernel).
	203
	204	If in doubt, say Y here.
	205
	206	config PPC_STD_MMU
5b7c3c91 BH	207	def_bool y
5b7c3c91 BH	208	depends on PPC_BOOK3S
a0ae9c7c AB	209
	210	config PPC_STD_MMU_32
	211	def_bool y
	212	depends on PPC_STD_MMU && PPC32
	213
5e696617 BH	214	config PPC_STD_MMU_64
	215	def_bool y
	216	depends on PPC_STD_MMU && PPC64
	217
	218	config PPC_MMU_NOHASH
	219	def_bool y
	220	depends on !PPC_STD_MMU
	221
70fe3af8 KG	222	config PPC_BOOK3E_MMU
	223	def_bool y
	224	depends on FSL_BOOKE
	225
a0ae9c7c AB	226	config PPC_MM_SLICES
a0ae9c7c AB	227	bool
ca9153a3	228	default y if HUGETLB_PAGE \|\| (PPC_STD_MMU_64 && PPC_64K_PAGES)
a0ae9c7c AB	229	default n
	230
	231	config VIRT_CPU_ACCOUNTING
	232	bool "Deterministic task and CPU time accounting"
	233	depends on PPC64
	234	default y
	235	help
	236	Select this option to enable more accurate task and CPU time
	237	accounting. This is done by reading a CPU counter on each
	238	kernel entry and exit and on transitions within the kernel
	239	between system, softirq and hardirq state, so there is a
	240	small performance impact. This also enables accounting of
	241	stolen time on logically-partitioned systems running on
	242	IBM POWER5-based machines.
	243
	244	If in doubt, say Y here.
	245
	246	config SMP
00c4b95c	247	depends on PPC_STD_MMU \|\| FSL_BOOKE
a0ae9c7c AB	248	bool "Symmetric multi-processing support"
	249	---help---
	250	This enables support for systems with more than one CPU. If you have
	251	a system with only one CPU, say N. If you have a system with more
	252	than one CPU, say Y. Note that the kernel does not currently
	253	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	254	since they have inadequate hardware support for multiprocessor
	255	operation.
	256
	257	If you say N here, the kernel will run on single and multiprocessor
	258	machines, but will use only one CPU of a multiprocessor machine. If
	259	you say Y here, the kernel will run on single-processor machines.
	260	On a single-processor machine, the kernel will run faster if you say
	261	N here.
	262
	263	If you don't know what to do here, say N.
	264
	265	config NR_CPUS
2d8ae638 MN	266	int "Maximum number of CPUs (2-8192)"
2d8ae638 MN	267	range 2 8192
a0ae9c7c AB	268	depends on SMP
	269	default "32" if PPC64
	270	default "4"
	271
	272	config NOT_COHERENT_CACHE
	273	bool
e177edcd	274	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x
a0ae9c7c AB	275	default y
a0ae9c7c AB	276
f8eb77d6	277	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	278	bool
	279
	280	endmenu