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

config PPC64
	bool "64-bit kernel"
	default n
	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
	default 6xx
	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 6xx
	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 POWER4_ONLY
	bool "Optimize for POWER4"
	depends on PPC64
	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 POWER3
	bool
	depends on PPC64
	default y if !POWER4_ONLY

config POWER4
	depends on PPC64
	def_bool y

config TUNE_CELL
	bool "Optimize for Cell Broadband Engine"
	depends on PPC64
	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 CLASSIC32 || 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
	bool
	depends on 6xx || PPC64
	default y

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_MM_SLICES
	bool
	default y if HUGETLB_PAGE || 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
	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 (2-1024)"
	range 2 1024
	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
	4	help
	5	This option selects whether a 32-bit or a 64-bit kernel
	6	will be built.
	7
	8	menu "Processor support"
	9	choice
	10	prompt "Processor Type"
	11	depends on PPC32
	12	default 6xx
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
	24	config 6xx
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
	60	config POWER4_ONLY
	61	bool "Optimize for POWER4"
	62	depends on PPC64
	63	default n
	64	---help---
	65	Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
	66	The resulting binary will not work on POWER3 or RS64 processors
	67	when compiled with binutils 2.15 or later.
	68
	69	config POWER3
	70	bool
	71	depends on PPC64
	72	default y if !POWER4_ONLY
	73
	74	config POWER4
	75	depends on PPC64
	76	def_bool y
	77
3164cccd AB	78	config TUNE_CELL
	79	bool "Optimize for Cell Broadband Engine"
	80	depends on PPC64
	81	help
	82	Cause the compiler to optimize for the PPE of the Cell Broadband
	83	Engine. This will make the code run considerably faster on Cell
	84	but somewhat slower on other machines. This option only changes
	85	the scheduling of instructions, not the selection of instructions
	86	itself, so the resulting kernel will keep running on all other
	87	machines. When building a kernel that is supposed to run only
	88	on Cell, you should also select the POWER4_ONLY option.
	89
a0ae9c7c AB	90	# this is temp to handle compat with arch=ppc
	91	config 8xx
	92	bool
	93
a0ae9c7c	94	config E500
39aef685	95	select FSL_EMB_PERFMON
a0ae9c7c AB	96	bool
a0ae9c7c AB	97
3dfa8773 KG	98	config PPC_E500MC
	99	bool "e500mc Support"
	100	select PPC_FPU
	101	depends on E500
	102
a0ae9c7c AB	103	config PPC_FPU
	104	bool
	105	default y if PPC64
	106
	107	config 4xx
	108	bool
	109	depends on 40x \|\| 44x
	110	default y
	111
	112	config BOOKE
	113	bool
	114	depends on E200 \|\| E500 \|\| 44x
	115	default y
	116
	117	config FSL_BOOKE
	118	bool
	119	depends on E200 \|\| E500
	120	default y
	121
39aef685	122	config FSL_EMB_PERFMON
ad562c71 AF	123	bool "Freescale Embedded Perfmon"
	124	depends on E500 \|\| PPC_83xx
	125	help
	126	This is the Performance Monitor support found on the e500 core
	127	and some e300 cores (c3 and c4). Select this only if your
	128	core supports the Embedded Performance Monitor APU
39aef685	129
a0ae9c7c AB	130	config PTE_64BIT
a0ae9c7c AB	131	bool
4ee7084e BB	132	depends on 44x \|\| E500 \|\| PPC_86xx
4ee7084e BB	133	default y if PHYS_64BIT
a0ae9c7c AB	134
a0ae9c7c AB	135	config PHYS_64BIT
4ee7084e BB	136	bool 'Large physical address support' if E500 \|\| PPC_86xx
4ee7084e BB	137	depends on (44x \|\| E500 \|\| PPC_86xx) && !PPC_83xx && !PPC_82xx
a0ae9c7c AB	138	---help---
a0ae9c7c AB	139	This option enables kernel support for larger than 32-bit physical
4ee7084e BB	140	addresses. This feature may not be available on all cores.
	141
	142	If you have more than 3.5GB of RAM or so, you also need to enable
	143	SWIOTLB under Kernel Options for this to work. The actual number
	144	is platform-dependent.
a0ae9c7c AB	145
	146	If in doubt, say N here.
	147
	148	config ALTIVEC
	149	bool "AltiVec Support"
	150	depends on CLASSIC32 \|\| POWER4
	151	---help---
	152	This option enables kernel support for the Altivec extensions to the
	153	PowerPC processor. The kernel currently supports saving and restoring
	154	altivec registers, and turning on the 'altivec enable' bit so user
	155	processes can execute altivec instructions.
	156
	157	This option is only usefully if you have a processor that supports
	158	altivec (G4, otherwise known as 74xx series), but does not have
	159	any affect on a non-altivec cpu (it does, however add code to the
	160	kernel).
	161
	162	If in doubt, say Y here.
	163
96d5b52c MN	164	config VSX
	165	bool "VSX Support"
	166	depends on POWER4 && ALTIVEC && PPC_FPU
	167	---help---
	168
	169	This option enables kernel support for the Vector Scaler extensions
	170	to the PowerPC processor. The kernel currently supports saving and
	171	restoring VSX registers, and turning on the 'VSX enable' bit so user
	172	processes can execute VSX instructions.
	173
	174	This option is only useful if you have a processor that supports
	175	VSX (P7 and above), but does not have any affect on a non-VSX
	176	CPUs (it does, however add code to the kernel).
	177
	178	If in doubt, say Y here.
	179
a0ae9c7c AB	180	config SPE
a0ae9c7c AB	181	bool "SPE Support"
3dfa8773	182	depends on E200 \|\| (E500 && !PPC_E500MC)
a0ae9c7c AB	183	default y
	184	---help---
	185	This option enables kernel support for the Signal Processing
	186	Extensions (SPE) to the PowerPC processor. The kernel currently
	187	supports saving and restoring SPE registers, and turning on the
	188	'spe enable' bit so user processes can execute SPE instructions.
	189
	190	This option is only useful if you have a processor that supports
	191	SPE (e500, otherwise known as 85xx series), but does not have any
	192	effect on a non-spe cpu (it does, however add code to the kernel).
	193
	194	If in doubt, say Y here.
	195
	196	config PPC_STD_MMU
	197	bool
5e696617	198	depends on 6xx \|\| PPC64
a0ae9c7c AB	199	default y
	200
	201	config PPC_STD_MMU_32
	202	def_bool y
	203	depends on PPC_STD_MMU && PPC32
	204
5e696617 BH	205	config PPC_STD_MMU_64
	206	def_bool y
	207	depends on PPC_STD_MMU && PPC64
	208
	209	config PPC_MMU_NOHASH
	210	def_bool y
	211	depends on !PPC_STD_MMU
	212
a0ae9c7c AB	213	config PPC_MM_SLICES
a0ae9c7c AB	214	bool
3a8247cc	215	default y if HUGETLB_PAGE \|\| PPC_64K_PAGES
a0ae9c7c AB	216	default n
	217
	218	config VIRT_CPU_ACCOUNTING
	219	bool "Deterministic task and CPU time accounting"
	220	depends on PPC64
	221	default y
	222	help
	223	Select this option to enable more accurate task and CPU time
	224	accounting. This is done by reading a CPU counter on each
	225	kernel entry and exit and on transitions within the kernel
	226	between system, softirq and hardirq state, so there is a
	227	small performance impact. This also enables accounting of
	228	stolen time on logically-partitioned systems running on
	229	IBM POWER5-based machines.
	230
	231	If in doubt, say Y here.
	232
	233	config SMP
	234	depends on PPC_STD_MMU
	235	bool "Symmetric multi-processing support"
	236	---help---
	237	This enables support for systems with more than one CPU. If you have
	238	a system with only one CPU, say N. If you have a system with more
	239	than one CPU, say Y. Note that the kernel does not currently
	240	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	241	since they have inadequate hardware support for multiprocessor
	242	operation.
	243
	244	If you say N here, the kernel will run on single and multiprocessor
	245	machines, but will use only one CPU of a multiprocessor machine. If
	246	you say Y here, the kernel will run on single-processor machines.
	247	On a single-processor machine, the kernel will run faster if you say
	248	N here.
	249
	250	If you don't know what to do here, say N.
	251
	252	config NR_CPUS
90035fe3 TB	253	int "Maximum number of CPUs (2-1024)"
90035fe3 TB	254	range 2 1024
a0ae9c7c AB	255	depends on SMP
	256	default "32" if PPC64
	257	default "4"
	258
	259	config NOT_COHERENT_CACHE
	260	bool
e177edcd	261	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x
a0ae9c7c AB	262	default y
a0ae9c7c AB	263
f8eb77d6	264	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	265	bool
	266
	267	endmenu