[deliverable/linux.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

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
	default y if 44x
	default y if E500 && PHYS_64BIT

config PHYS_64BIT
	bool 'Large physical address support' if E500
	depends on 44x || E500
	select RESOURCES_64BIT
	default y if 44x
	---help---
	  This option enables kernel support for larger than 32-bit physical
	  addresses.  This features is not be available on all e500 cores.

	  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 || POWER3 || POWER4 || PPC64
	default y

config PPC_STD_MMU_32
	def_bool y
	depends on PPC_STD_MMU && PPC32

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
a0ae9c7c AB	53
	54	config E200
	55	bool "Freescale e200"
	56
	57	endchoice
	58
	59	config POWER4_ONLY
	60	bool "Optimize for POWER4"
	61	depends on PPC64
	62	default n
	63	---help---
	64	Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
	65	The resulting binary will not work on POWER3 or RS64 processors
	66	when compiled with binutils 2.15 or later.
	67
	68	config POWER3
	69	bool
	70	depends on PPC64
	71	default y if !POWER4_ONLY
	72
	73	config POWER4
	74	depends on PPC64
	75	def_bool y
	76
3164cccd AB	77	config TUNE_CELL
	78	bool "Optimize for Cell Broadband Engine"
	79	depends on PPC64
	80	help
	81	Cause the compiler to optimize for the PPE of the Cell Broadband
	82	Engine. This will make the code run considerably faster on Cell
	83	but somewhat slower on other machines. This option only changes
	84	the scheduling of instructions, not the selection of instructions
	85	itself, so the resulting kernel will keep running on all other
	86	machines. When building a kernel that is supposed to run only
	87	on Cell, you should also select the POWER4_ONLY option.
	88
a0ae9c7c AB	89	# this is temp to handle compat with arch=ppc
	90	config 8xx
	91	bool
	92
a0ae9c7c	93	config E500
39aef685	94	select FSL_EMB_PERFMON
a0ae9c7c AB	95	bool
a0ae9c7c AB	96
3dfa8773 KG	97	config PPC_E500MC
	98	bool "e500mc Support"
	99	select PPC_FPU
	100	depends on E500
	101
a0ae9c7c AB	102	config PPC_FPU
	103	bool
	104	default y if PPC64
	105
	106	config 4xx
	107	bool
	108	depends on 40x \|\| 44x
	109	default y
	110
	111	config BOOKE
	112	bool
	113	depends on E200 \|\| E500 \|\| 44x
	114	default y
	115
	116	config FSL_BOOKE
	117	bool
	118	depends on E200 \|\| E500
	119	default y
	120
39aef685	121	config FSL_EMB_PERFMON
ad562c71 AF	122	bool "Freescale Embedded Perfmon"
	123	depends on E500 \|\| PPC_83xx
	124	help
	125	This is the Performance Monitor support found on the e500 core
	126	and some e300 cores (c3 and c4). Select this only if your
	127	core supports the Embedded Performance Monitor APU
39aef685	128
a0ae9c7c AB	129	config PTE_64BIT
	130	bool
	131	depends on 44x \|\| E500
	132	default y if 44x
	133	default y if E500 && PHYS_64BIT
	134
	135	config PHYS_64BIT
	136	bool 'Large physical address support' if E500
	137	depends on 44x \|\| E500
	138	select RESOURCES_64BIT
	139	default y if 44x
	140	---help---
	141	This option enables kernel support for larger than 32-bit physical
	142	addresses. This features is not be available on all e500 cores.
	143
	144	If in doubt, say N here.
	145
	146	config ALTIVEC
	147	bool "AltiVec Support"
	148	depends on CLASSIC32 \|\| POWER4
	149	---help---
	150	This option enables kernel support for the Altivec extensions to the
	151	PowerPC processor. The kernel currently supports saving and restoring
	152	altivec registers, and turning on the 'altivec enable' bit so user
	153	processes can execute altivec instructions.
	154
	155	This option is only usefully if you have a processor that supports
	156	altivec (G4, otherwise known as 74xx series), but does not have
	157	any affect on a non-altivec cpu (it does, however add code to the
	158	kernel).
	159
	160	If in doubt, say Y here.
	161
96d5b52c MN	162	config VSX
	163	bool "VSX Support"
	164	depends on POWER4 && ALTIVEC && PPC_FPU
	165	---help---
	166
	167	This option enables kernel support for the Vector Scaler extensions
	168	to the PowerPC processor. The kernel currently supports saving and
	169	restoring VSX registers, and turning on the 'VSX enable' bit so user
	170	processes can execute VSX instructions.
	171
	172	This option is only useful if you have a processor that supports
	173	VSX (P7 and above), but does not have any affect on a non-VSX
	174	CPUs (it does, however add code to the kernel).
	175
	176	If in doubt, say Y here.
	177
a0ae9c7c AB	178	config SPE
a0ae9c7c AB	179	bool "SPE Support"
3dfa8773	180	depends on E200 \|\| (E500 && !PPC_E500MC)
a0ae9c7c AB	181	default y
	182	---help---
	183	This option enables kernel support for the Signal Processing
	184	Extensions (SPE) to the PowerPC processor. The kernel currently
	185	supports saving and restoring SPE registers, and turning on the
	186	'spe enable' bit so user processes can execute SPE instructions.
	187
	188	This option is only useful if you have a processor that supports
	189	SPE (e500, otherwise known as 85xx series), but does not have any
	190	effect on a non-spe cpu (it does, however add code to the kernel).
	191
	192	If in doubt, say Y here.
	193
	194	config PPC_STD_MMU
	195	bool
	196	depends on 6xx \|\| POWER3 \|\| POWER4 \|\| PPC64
	197	default y
	198
	199	config PPC_STD_MMU_32
	200	def_bool y
	201	depends on PPC_STD_MMU && PPC32
	202
	203	config PPC_MM_SLICES
	204	bool
3a8247cc	205	default y if HUGETLB_PAGE \|\| PPC_64K_PAGES
a0ae9c7c AB	206	default n
	207
	208	config VIRT_CPU_ACCOUNTING
	209	bool "Deterministic task and CPU time accounting"
	210	depends on PPC64
	211	default y
	212	help
	213	Select this option to enable more accurate task and CPU time
	214	accounting. This is done by reading a CPU counter on each
	215	kernel entry and exit and on transitions within the kernel
	216	between system, softirq and hardirq state, so there is a
	217	small performance impact. This also enables accounting of
	218	stolen time on logically-partitioned systems running on
	219	IBM POWER5-based machines.
	220
	221	If in doubt, say Y here.
	222
	223	config SMP
	224	depends on PPC_STD_MMU
	225	bool "Symmetric multi-processing support"
	226	---help---
	227	This enables support for systems with more than one CPU. If you have
	228	a system with only one CPU, say N. If you have a system with more
	229	than one CPU, say Y. Note that the kernel does not currently
	230	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	231	since they have inadequate hardware support for multiprocessor
	232	operation.
	233
	234	If you say N here, the kernel will run on single and multiprocessor
	235	machines, but will use only one CPU of a multiprocessor machine. If
	236	you say Y here, the kernel will run on single-processor machines.
	237	On a single-processor machine, the kernel will run faster if you say
	238	N here.
	239
	240	If you don't know what to do here, say N.
	241
	242	config NR_CPUS
90035fe3 TB	243	int "Maximum number of CPUs (2-1024)"
90035fe3 TB	244	range 2 1024
a0ae9c7c AB	245	depends on SMP
	246	default "32" if PPC64
	247	default "4"
	248
	249	config NOT_COHERENT_CACHE
	250	bool
e177edcd	251	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x
a0ae9c7c AB	252	default y
a0ae9c7c AB	253
f8eb77d6	254	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	255	bool
	256
	257	endmenu