[linux-2.6-block.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, 46x or 47x"
	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
	select PPC_FSL_BOOK3E
	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 FSL_EMB_PERF_EVENT
	bool
	depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
	default y

config FSL_EMB_PERF_EVENT_E500
	bool
	depends on FSL_EMB_PERF_EVENT && E500
	default y

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) && PPC32
	default y

# this is for common code between PPC32 & PPC64 FSL BOOKE
config PPC_FSL_BOOK3E
	bool
	select FSL_EMB_PERFMON
	default y if FSL_BOOKE

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 || PPC_47x
	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 || GAMECUBE_COMMON
	default n if PPC_47x
	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
a0ae9c7c AB	45	config 44x
e7f75ad0	46	bool "AMCC 44x, 46x or 47x"
a0ae9c7c	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
4490c06b	128	select PPC_FSL_BOOK3E
a0ae9c7c AB	129	bool
a0ae9c7c AB	130
3dfa8773 KG	131	config PPC_E500MC
	132	bool "e500mc Support"
	133	select PPC_FPU
	134	depends on E500
	135
a0ae9c7c AB	136	config PPC_FPU
	137	bool
	138	default y if PPC64
	139
5753c082 KG	140	config FSL_EMB_PERFMON
	141	bool "Freescale Embedded Perfmon"
	142	depends on E500 \|\| PPC_83xx
	143	help
	144	This is the Performance Monitor support found on the e500 core
	145	and some e300 cores (c3 and c4). Select this only if your
	146	core supports the Embedded Performance Monitor APU
	147
a1110654 SW	148	config FSL_EMB_PERF_EVENT
	149	bool
	150	depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
	151	default y
	152
	153	config FSL_EMB_PERF_EVENT_E500
	154	bool
	155	depends on FSL_EMB_PERF_EVENT && E500
	156	default y
	157
a0ae9c7c AB	158	config 4xx
	159	bool
	160	depends on 40x \|\| 44x
	161	default y
	162
	163	config BOOKE
	164	bool
2d27cfd3	165	depends on E200 \|\| E500 \|\| 44x \|\| PPC_BOOK3E
a0ae9c7c AB	166	default y
	167
	168	config FSL_BOOKE
	169	bool
4490c06b	170	depends on (E200 \|\| E500) && PPC32
a0ae9c7c AB	171	default y
a0ae9c7c AB	172
4490c06b KG	173	# this is for common code between PPC32 & PPC64 FSL BOOKE
	174	config PPC_FSL_BOOK3E
	175	bool
	176	select FSL_EMB_PERFMON
	177	default y if FSL_BOOKE
39aef685	178
a0ae9c7c AB	179	config PTE_64BIT
a0ae9c7c AB	180	bool
4ee7084e BB	181	depends on 44x \|\| E500 \|\| PPC_86xx
4ee7084e BB	182	default y if PHYS_64BIT
a0ae9c7c AB	183
a0ae9c7c AB	184	config PHYS_64BIT
4ee7084e BB	185	bool 'Large physical address support' if E500 \|\| PPC_86xx
4ee7084e BB	186	depends on (44x \|\| E500 \|\| PPC_86xx) && !PPC_83xx && !PPC_82xx
a0ae9c7c AB	187	---help---
a0ae9c7c AB	188	This option enables kernel support for larger than 32-bit physical
4ee7084e BB	189	addresses. This feature may not be available on all cores.
	190
	191	If you have more than 3.5GB of RAM or so, you also need to enable
	192	SWIOTLB under Kernel Options for this to work. The actual number
	193	is platform-dependent.
a0ae9c7c AB	194
	195	If in doubt, say N here.
	196
	197	config ALTIVEC
	198	bool "AltiVec Support"
28794d34	199	depends on 6xx \|\| POWER4
a0ae9c7c AB	200	---help---
	201	This option enables kernel support for the Altivec extensions to the
	202	PowerPC processor. The kernel currently supports saving and restoring
	203	altivec registers, and turning on the 'altivec enable' bit so user
	204	processes can execute altivec instructions.
	205
	206	This option is only usefully if you have a processor that supports
	207	altivec (G4, otherwise known as 74xx series), but does not have
	208	any affect on a non-altivec cpu (it does, however add code to the
	209	kernel).
	210
	211	If in doubt, say Y here.
	212
96d5b52c MN	213	config VSX
	214	bool "VSX Support"
	215	depends on POWER4 && ALTIVEC && PPC_FPU
	216	---help---
	217
	218	This option enables kernel support for the Vector Scaler extensions
	219	to the PowerPC processor. The kernel currently supports saving and
	220	restoring VSX registers, and turning on the 'VSX enable' bit so user
	221	processes can execute VSX instructions.
	222
	223	This option is only useful if you have a processor that supports
	224	VSX (P7 and above), but does not have any affect on a non-VSX
	225	CPUs (it does, however add code to the kernel).
	226
	227	If in doubt, say Y here.
	228
a0ae9c7c AB	229	config SPE
a0ae9c7c AB	230	bool "SPE Support"
3dfa8773	231	depends on E200 \|\| (E500 && !PPC_E500MC)
a0ae9c7c AB	232	default y
	233	---help---
	234	This option enables kernel support for the Signal Processing
	235	Extensions (SPE) to the PowerPC processor. The kernel currently
	236	supports saving and restoring SPE registers, and turning on the
	237	'spe enable' bit so user processes can execute SPE instructions.
	238
	239	This option is only useful if you have a processor that supports
	240	SPE (e500, otherwise known as 85xx series), but does not have any
	241	effect on a non-spe cpu (it does, however add code to the kernel).
	242
	243	If in doubt, say Y here.
	244
	245	config PPC_STD_MMU
5b7c3c91 BH	246	def_bool y
5b7c3c91 BH	247	depends on PPC_BOOK3S
a0ae9c7c AB	248
	249	config PPC_STD_MMU_32
	250	def_bool y
	251	depends on PPC_STD_MMU && PPC32
	252
5e696617 BH	253	config PPC_STD_MMU_64
	254	def_bool y
	255	depends on PPC_STD_MMU && PPC64
	256
	257	config PPC_MMU_NOHASH
	258	def_bool y
	259	depends on !PPC_STD_MMU
	260
2d27cfd3 BH	261	config PPC_MMU_NOHASH_32
	262	def_bool y
	263	depends on PPC_MMU_NOHASH && PPC32
	264
	265	config PPC_MMU_NOHASH_64
	266	def_bool y
	267	depends on PPC_MMU_NOHASH && PPC64
	268
70fe3af8 KG	269	config PPC_BOOK3E_MMU
70fe3af8 KG	270	def_bool y
2d27cfd3	271	depends on FSL_BOOKE \|\| PPC_BOOK3E
70fe3af8	272
a0ae9c7c AB	273	config PPC_MM_SLICES
a0ae9c7c AB	274	bool
ca9153a3	275	default y if HUGETLB_PAGE \|\| (PPC_STD_MMU_64 && PPC_64K_PAGES)
a0ae9c7c AB	276	default n
	277
	278	config VIRT_CPU_ACCOUNTING
	279	bool "Deterministic task and CPU time accounting"
	280	depends on PPC64
	281	default y
	282	help
	283	Select this option to enable more accurate task and CPU time
	284	accounting. This is done by reading a CPU counter on each
	285	kernel entry and exit and on transitions within the kernel
	286	between system, softirq and hardirq state, so there is a
	287	small performance impact. This also enables accounting of
	288	stolen time on logically-partitioned systems running on
	289	IBM POWER5-based machines.
	290
	291	If in doubt, say Y here.
	292
105988c0 PM	293	config PPC_HAVE_PMU_SUPPORT
	294	bool
	295
	296	config PPC_PERF_CTRS
	297	def_bool y
cdd6c482	298	depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
105988c0	299	help
cdd6c482	300	This enables the powerpc-specific perf_event back-end.
105988c0	301
a0ae9c7c	302	config SMP
e7f75ad0	303	depends on PPC_BOOK3S \|\| PPC_BOOK3E \|\| FSL_BOOKE \|\| PPC_47x
a0ae9c7c AB	304	bool "Symmetric multi-processing support"
	305	---help---
	306	This enables support for systems with more than one CPU. If you have
	307	a system with only one CPU, say N. If you have a system with more
	308	than one CPU, say Y. Note that the kernel does not currently
	309	support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
	310	since they have inadequate hardware support for multiprocessor
	311	operation.
	312
	313	If you say N here, the kernel will run on single and multiprocessor
	314	machines, but will use only one CPU of a multiprocessor machine. If
	315	you say Y here, the kernel will run on single-processor machines.
	316	On a single-processor machine, the kernel will run faster if you say
	317	N here.
	318
	319	If you don't know what to do here, say N.
	320
	321	config NR_CPUS
2d8ae638 MN	322	int "Maximum number of CPUs (2-8192)"
2d8ae638 MN	323	range 2 8192
a0ae9c7c AB	324	depends on SMP
	325	default "32" if PPC64
	326	default "4"
	327
	328	config NOT_COHERENT_CACHE
	329	bool
b91a143b	330	depends on 4xx \|\| 8xx \|\| E200 \|\| PPC_MPC512x \|\| GAMECUBE_COMMON
e7f75ad0	331	default n if PPC_47x
a0ae9c7c AB	332	default y
a0ae9c7c AB	333
f8eb77d6	334	config CHECK_CACHE_COHERENCY
a0ae9c7c AB	335	bool
	336
	337	endmenu