xref: /openbmc/linux/arch/powerpc/Kconfig (revision 6774def6)
1source "arch/powerpc/platforms/Kconfig.cputype"
2
3config PPC32
4	bool
5	default y if !PPC64
6
7config 32BIT
8	bool
9	default y if PPC32
10
11config 64BIT
12	bool
13	default y if PPC64
14
15config WORD_SIZE
16	int
17	default 64 if PPC64
18	default 32 if !PPC64
19
20config ARCH_PHYS_ADDR_T_64BIT
21       def_bool PPC64 || PHYS_64BIT
22
23config ARCH_DMA_ADDR_T_64BIT
24	def_bool ARCH_PHYS_ADDR_T_64BIT
25
26config MMU
27	bool
28	default y
29
30config HAVE_SETUP_PER_CPU_AREA
31	def_bool PPC64
32
33config NEED_PER_CPU_EMBED_FIRST_CHUNK
34	def_bool PPC64
35
36config NR_IRQS
37	int "Number of virtual interrupt numbers"
38	range 32 32768
39	default "512"
40	help
41	  This defines the number of virtual interrupt numbers the kernel
42	  can manage. Virtual interrupt numbers are what you see in
43	  /proc/interrupts. If you configure your system to have too few,
44	  drivers will fail to load or worse - handle with care.
45
46config STACKTRACE_SUPPORT
47	bool
48	default y
49
50config HAVE_LATENCYTOP_SUPPORT
51	def_bool y
52
53config TRACE_IRQFLAGS_SUPPORT
54	bool
55	default y
56
57config LOCKDEP_SUPPORT
58	bool
59	default y
60
61config RWSEM_GENERIC_SPINLOCK
62	bool
63
64config RWSEM_XCHGADD_ALGORITHM
65	bool
66	default y
67
68config GENERIC_LOCKBREAK
69	bool
70	default y
71	depends on SMP && PREEMPT
72
73config ARCH_HAS_ILOG2_U32
74	bool
75	default y
76
77config ARCH_HAS_ILOG2_U64
78	bool
79	default y if 64BIT
80
81config GENERIC_HWEIGHT
82	bool
83	default y
84
85config PPC
86	bool
87	default y
88	select ARCH_MIGHT_HAVE_PC_PARPORT
89	select ARCH_MIGHT_HAVE_PC_SERIO
90	select BINFMT_ELF
91	select OF
92	select OF_EARLY_FLATTREE
93	select OF_RESERVED_MEM
94	select HAVE_FTRACE_MCOUNT_RECORD
95	select HAVE_DYNAMIC_FTRACE
96	select HAVE_FUNCTION_TRACER
97	select HAVE_FUNCTION_GRAPH_TRACER
98	select SYSCTL_EXCEPTION_TRACE
99	select ARCH_WANT_OPTIONAL_GPIOLIB
100	select VIRT_TO_BUS if !PPC64
101	select HAVE_IDE
102	select HAVE_IOREMAP_PROT
103	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
104	select HAVE_KPROBES
105	select HAVE_ARCH_KGDB
106	select HAVE_KRETPROBES
107	select HAVE_ARCH_TRACEHOOK
108	select HAVE_MEMBLOCK
109	select HAVE_MEMBLOCK_NODE_MAP
110	select HAVE_DMA_ATTRS
111	select HAVE_DMA_API_DEBUG
112	select HAVE_OPROFILE
113	select HAVE_DEBUG_KMEMLEAK
114	select ARCH_HAS_SG_CHAIN
115	select GENERIC_ATOMIC64 if PPC32
116	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
117	select HAVE_PERF_EVENTS
118	select HAVE_REGS_AND_STACK_ACCESS_API
119	select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
120	select ARCH_WANT_IPC_PARSE_VERSION
121	select SPARSE_IRQ
122	select IRQ_DOMAIN
123	select GENERIC_IRQ_SHOW
124	select GENERIC_IRQ_SHOW_LEVEL
125	select IRQ_FORCED_THREADING
126	select HAVE_RCU_TABLE_FREE if SMP
127	select HAVE_SYSCALL_TRACEPOINTS
128	select HAVE_BPF_JIT if PPC64
129	select HAVE_ARCH_JUMP_LABEL
130	select ARCH_HAVE_NMI_SAFE_CMPXCHG
131	select GENERIC_SMP_IDLE_THREAD
132	select GENERIC_CMOS_UPDATE
133	select GENERIC_TIME_VSYSCALL_OLD
134	select GENERIC_CLOCKEVENTS
135	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
136	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
137	select GENERIC_STRNCPY_FROM_USER
138	select GENERIC_STRNLEN_USER
139	select HAVE_MOD_ARCH_SPECIFIC
140	select MODULES_USE_ELF_RELA
141	select CLONE_BACKWARDS
142	select ARCH_USE_BUILTIN_BSWAP
143	select OLD_SIGSUSPEND
144	select OLD_SIGACTION if PPC32
145	select HAVE_DEBUG_STACKOVERFLOW
146	select HAVE_IRQ_EXIT_ON_IRQ_STACK
147	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
148	select HAVE_ARCH_AUDITSYSCALL
149	select ARCH_SUPPORTS_ATOMIC_RMW
150	select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
151
152config GENERIC_CSUM
153	def_bool CPU_LITTLE_ENDIAN
154
155config EARLY_PRINTK
156	bool
157	default y
158
159config PANIC_TIMEOUT
160	int
161	default 180
162
163config COMPAT
164	bool
165	default y if PPC64
166	select COMPAT_BINFMT_ELF
167	select ARCH_WANT_OLD_COMPAT_IPC
168	select COMPAT_OLD_SIGACTION
169
170config SYSVIPC_COMPAT
171	bool
172	depends on COMPAT && SYSVIPC
173	default y
174
175# All PPC32s use generic nvram driver through ppc_md
176config GENERIC_NVRAM
177	bool
178	default y if PPC32
179
180config SCHED_OMIT_FRAME_POINTER
181	bool
182	default y
183
184config ARCH_MAY_HAVE_PC_FDC
185	bool
186	default PCI
187
188config PPC_OF
189	def_bool y
190
191config PPC_UDBG_16550
192	bool
193	default n
194
195config GENERIC_TBSYNC
196	bool
197	default y if PPC32 && SMP
198	default n
199
200config AUDIT_ARCH
201	bool
202	default y
203
204config GENERIC_BUG
205	bool
206	default y
207	depends on BUG
208
209config SYS_SUPPORTS_APM_EMULATION
210	default y if PMAC_APM_EMU
211	bool
212
213config EPAPR_BOOT
214	bool
215	help
216	  Used to allow a board to specify it wants an ePAPR compliant wrapper.
217	default n
218
219config DEFAULT_UIMAGE
220	bool
221	help
222	  Used to allow a board to specify it wants a uImage built by default
223	default n
224
225config ARCH_HIBERNATION_POSSIBLE
226	bool
227	default y
228
229config ARCH_SUSPEND_POSSIBLE
230	def_bool y
231	depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
232		   (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
233		   || 44x || 40x
234
235config PPC_DCR_NATIVE
236	bool
237	default n
238
239config PPC_DCR_MMIO
240	bool
241	default n
242
243config PPC_DCR
244	bool
245	depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
246	default y
247
248config PPC_OF_PLATFORM_PCI
249	bool
250	depends on PCI
251	depends on PPC64 # not supported on 32 bits yet
252	default n
253
254config ARCH_SUPPORTS_DEBUG_PAGEALLOC
255	def_bool y
256
257config ARCH_SUPPORTS_UPROBES
258	def_bool y
259
260config PPC_ADV_DEBUG_REGS
261	bool
262	depends on 40x || BOOKE
263	default y
264
265config PPC_ADV_DEBUG_IACS
266	int
267	depends on PPC_ADV_DEBUG_REGS
268	default 4 if 44x
269	default 2
270
271config PPC_ADV_DEBUG_DACS
272	int
273	depends on PPC_ADV_DEBUG_REGS
274	default 2
275
276config PPC_ADV_DEBUG_DVCS
277	int
278	depends on PPC_ADV_DEBUG_REGS
279	default 2 if 44x
280	default 0
281
282config PPC_ADV_DEBUG_DAC_RANGE
283	bool
284	depends on PPC_ADV_DEBUG_REGS && 44x
285	default y
286
287config PPC_EMULATE_SSTEP
288	bool
289	default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
290
291config ZONE_DMA32
292	bool
293	default y if PPC64
294
295source "init/Kconfig"
296
297source "kernel/Kconfig.freezer"
298
299source "arch/powerpc/sysdev/Kconfig"
300source "arch/powerpc/platforms/Kconfig"
301
302menu "Kernel options"
303
304config HIGHMEM
305	bool "High memory support"
306	depends on PPC32
307
308source kernel/Kconfig.hz
309source kernel/Kconfig.preempt
310source "fs/Kconfig.binfmt"
311
312config HUGETLB_PAGE_SIZE_VARIABLE
313	bool
314	depends on HUGETLB_PAGE
315	default y
316
317config MATH_EMULATION
318	bool "Math emulation"
319	depends on 4xx || 8xx || PPC_MPC832x || BOOKE
320	---help---
321	  Some PowerPC chips designed for embedded applications do not have
322	  a floating-point unit and therefore do not implement the
323	  floating-point instructions in the PowerPC instruction set.  If you
324	  say Y here, the kernel will include code to emulate a floating-point
325	  unit, which will allow programs that use floating-point
326	  instructions to run.
327
328	  This is also useful to emulate missing (optional) instructions
329	  such as fsqrt on cores that do have an FPU but do not implement
330	  them (such as Freescale BookE).
331
332choice
333	prompt "Math emulation options"
334	default MATH_EMULATION_FULL
335	depends on MATH_EMULATION
336
337config	MATH_EMULATION_FULL
338	bool "Emulate all the floating point instructions"
339	---help---
340	  Select this option will enable the kernel to support to emulate
341	  all the floating point instructions. If your SoC doesn't have
342	  a FPU, you should select this.
343
344config MATH_EMULATION_HW_UNIMPLEMENTED
345	bool "Just emulate the FPU unimplemented instructions"
346	---help---
347	  Select this if you know there does have a hardware FPU on your
348	  SoC, but some floating point instructions are not implemented by that.
349
350endchoice
351
352config PPC_TRANSACTIONAL_MEM
353       bool "Transactional Memory support for POWERPC"
354       depends on PPC_BOOK3S_64
355       depends on SMP
356       select ALTIVEC
357       select VSX
358       default n
359       ---help---
360         Support user-mode Transactional Memory on POWERPC.
361
362config IOMMU_HELPER
363	def_bool PPC64
364
365config SWIOTLB
366	bool "SWIOTLB support"
367	default n
368	select IOMMU_HELPER
369	---help---
370	  Support for IO bounce buffering for systems without an IOMMU.
371	  This allows us to DMA to the full physical address space on
372	  platforms where the size of a physical address is larger
373	  than the bus address.  Not all platforms support this.
374
375config HOTPLUG_CPU
376	bool "Support for enabling/disabling CPUs"
377	depends on SMP && (PPC_PSERIES || \
378	PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
379	---help---
380	  Say Y here to be able to disable and re-enable individual
381	  CPUs at runtime on SMP machines.
382
383	  Say N if you are unsure.
384
385config ARCH_CPU_PROBE_RELEASE
386	def_bool y
387	depends on HOTPLUG_CPU
388
389config ARCH_ENABLE_MEMORY_HOTPLUG
390	def_bool y
391
392config ARCH_HAS_WALK_MEMORY
393	def_bool y
394
395config ARCH_ENABLE_MEMORY_HOTREMOVE
396	def_bool y
397
398config PPC64_SUPPORTS_MEMORY_FAILURE
399	bool "Add support for memory hwpoison"
400	depends on PPC_BOOK3S_64
401	default "y" if PPC_POWERNV
402	select ARCH_SUPPORTS_MEMORY_FAILURE
403
404config KEXEC
405	bool "kexec system call"
406	depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
407	help
408	  kexec is a system call that implements the ability to shutdown your
409	  current kernel, and to start another kernel.  It is like a reboot
410	  but it is independent of the system firmware.   And like a reboot
411	  you can start any kernel with it, not just Linux.
412
413	  The name comes from the similarity to the exec system call.
414
415	  It is an ongoing process to be certain the hardware in a machine
416	  is properly shutdown, so do not be surprised if this code does not
417	  initially work for you.  As of this writing the exact hardware
418	  interface is strongly in flux, so no good recommendation can be
419	  made.
420
421config CRASH_DUMP
422	bool "Build a kdump crash kernel"
423	depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
424	select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
425	help
426	  Build a kernel suitable for use as a kdump capture kernel.
427	  The same kernel binary can be used as production kernel and dump
428	  capture kernel.
429
430config FA_DUMP
431	bool "Firmware-assisted dump"
432	depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
433	help
434	  A robust mechanism to get reliable kernel crash dump with
435	  assistance from firmware. This approach does not use kexec,
436	  instead firmware assists in booting the kdump kernel
437	  while preserving memory contents. Firmware-assisted dump
438	  is meant to be a kdump replacement offering robustness and
439	  speed not possible without system firmware assistance.
440
441	  If unsure, say "N"
442
443config IRQ_ALL_CPUS
444	bool "Distribute interrupts on all CPUs by default"
445	depends on SMP
446	help
447	  This option gives the kernel permission to distribute IRQs across
448	  multiple CPUs.  Saying N here will route all IRQs to the first
449	  CPU.  Generally saying Y is safe, although some problems have been
450	  reported with SMP Power Macintoshes with this option enabled.
451
452config NUMA
453	bool "NUMA support"
454	depends on PPC64
455	default y if SMP && PPC_PSERIES
456
457config NODES_SHIFT
458	int
459	default "8" if PPC64
460	default "4"
461	depends on NEED_MULTIPLE_NODES
462
463config USE_PERCPU_NUMA_NODE_ID
464	def_bool y
465	depends on NUMA
466
467config HAVE_MEMORYLESS_NODES
468	def_bool y
469	depends on NUMA
470
471config ARCH_SELECT_MEMORY_MODEL
472	def_bool y
473	depends on PPC64
474
475config ARCH_FLATMEM_ENABLE
476	def_bool y
477	depends on (PPC64 && !NUMA) || PPC32
478
479config ARCH_SPARSEMEM_ENABLE
480	def_bool y
481	depends on PPC64
482	select SPARSEMEM_VMEMMAP_ENABLE
483
484config ARCH_SPARSEMEM_DEFAULT
485	def_bool y
486	depends on (SMP && PPC_PSERIES) || PPC_PS3
487
488config SYS_SUPPORTS_HUGETLBFS
489	bool
490
491source "mm/Kconfig"
492
493config ARCH_MEMORY_PROBE
494	def_bool y
495	depends on MEMORY_HOTPLUG
496
497# Some NUMA nodes have memory ranges that span
498# other nodes.  Even though a pfn is valid and
499# between a node's start and end pfns, it may not
500# reside on that node.  See memmap_init_zone()
501# for details.
502config NODES_SPAN_OTHER_NODES
503	def_bool y
504	depends on NEED_MULTIPLE_NODES
505
506config PPC_HAS_HASH_64K
507	bool
508	depends on PPC64
509	default n
510
511config STDBINUTILS
512	bool "Using standard binutils settings"
513	depends on 44x
514	default y
515	help
516	  Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
517	  Note, that kernel will be able to run only those applications,
518	  which had been compiled using binutils later than 2.17.50.0.3 with
519	  '-zmax-page-size' set to 256K (the default is 64K). Or, if using
520	  the older binutils, you can patch them with a trivial patch, which
521	  changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
522
523choice
524	prompt "Page size"
525	default PPC_4K_PAGES
526	help
527	  Select the kernel logical page size. Increasing the page size
528	  will reduce software overhead at each page boundary, allow
529	  hardware prefetch mechanisms to be more effective, and allow
530	  larger dma transfers increasing IO efficiency and reducing
531	  overhead. However the utilization of memory will increase.
532	  For example, each cached file will using a multiple of the
533	  page size to hold its contents and the difference between the
534	  end of file and the end of page is wasted.
535
536	  Some dedicated systems, such as software raid serving with
537	  accelerated calculations, have shown significant increases.
538
539	  If you configure a 64 bit kernel for 64k pages but the
540	  processor does not support them, then the kernel will simulate
541	  them with 4k pages, loading them on demand, but with the
542	  reduced software overhead and larger internal fragmentation.
543	  For the 32 bit kernel, a large page option will not be offered
544	  unless it is supported by the configured processor.
545
546	  If unsure, choose 4K_PAGES.
547
548config PPC_4K_PAGES
549	bool "4k page size"
550
551config PPC_16K_PAGES
552	bool "16k page size" if 44x
553
554config PPC_64K_PAGES
555	bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
556	depends on !PPC_FSL_BOOK3E
557	select PPC_HAS_HASH_64K if PPC_STD_MMU_64
558
559config PPC_256K_PAGES
560	bool "256k page size" if 44x
561	depends on !STDBINUTILS
562	help
563	  Make the page size 256k.
564
565	  As the ELF standard only requires alignment to support page
566	  sizes up to 64k, you will need to compile all of your user
567	  space applications with a non-standard binutils settings
568	  (see the STDBINUTILS description for details).
569
570	  Say N unless you know what you are doing.
571
572endchoice
573
574config FORCE_MAX_ZONEORDER
575	int "Maximum zone order"
576	range 9 64 if PPC64 && PPC_64K_PAGES
577	default "9" if PPC64 && PPC_64K_PAGES
578	range 13 64 if PPC64 && !PPC_64K_PAGES
579	default "13" if PPC64 && !PPC_64K_PAGES
580	range 9 64 if PPC32 && PPC_16K_PAGES
581	default "9" if PPC32 && PPC_16K_PAGES
582	range 7 64 if PPC32 && PPC_64K_PAGES
583	default "7" if PPC32 && PPC_64K_PAGES
584	range 5 64 if PPC32 && PPC_256K_PAGES
585	default "5" if PPC32 && PPC_256K_PAGES
586	range 11 64
587	default "11"
588	help
589	  The kernel memory allocator divides physically contiguous memory
590	  blocks into "zones", where each zone is a power of two number of
591	  pages.  This option selects the largest power of two that the kernel
592	  keeps in the memory allocator.  If you need to allocate very large
593	  blocks of physically contiguous memory, then you may need to
594	  increase this value.
595
596	  This config option is actually maximum order plus one. For example,
597	  a value of 11 means that the largest free memory block is 2^10 pages.
598
599	  The page size is not necessarily 4KB.  For example, on 64-bit
600	  systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
601	  this in mind when choosing a value for this option.
602
603config PPC_SUBPAGE_PROT
604	bool "Support setting protections for 4k subpages"
605	depends on PPC_STD_MMU_64 && PPC_64K_PAGES
606	help
607	  This option adds support for a system call to allow user programs
608	  to set access permissions (read/write, readonly, or no access)
609	  on the 4k subpages of each 64k page.
610
611config PPC_COPRO_BASE
612	bool
613	default n
614
615config SCHED_SMT
616	bool "SMT (Hyperthreading) scheduler support"
617	depends on PPC64 && SMP
618	help
619	  SMT scheduler support improves the CPU scheduler's decision making
620	  when dealing with POWER5 cpus at a cost of slightly increased
621	  overhead in some places. If unsure say N here.
622
623config PPC_DENORMALISATION
624	bool "PowerPC denormalisation exception handling"
625	depends on PPC_BOOK3S_64
626	default "y" if PPC_POWERNV
627	---help---
628	  Add support for handling denormalisation of single precision
629	  values.  Useful for bare metal only.  If unsure say Y here.
630
631config CMDLINE_BOOL
632	bool "Default bootloader kernel arguments"
633
634config CMDLINE
635	string "Initial kernel command string"
636	depends on CMDLINE_BOOL
637	default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
638	help
639	  On some platforms, there is currently no way for the boot loader to
640	  pass arguments to the kernel. For these platforms, you can supply
641	  some command-line options at build time by entering them here.  In
642	  most cases you will need to specify the root device here.
643
644config CMDLINE_FORCE
645	bool "Always use the default kernel command string"
646	depends on CMDLINE_BOOL
647	help
648	  Always use the default kernel command string, even if the boot
649	  loader passes other arguments to the kernel.
650	  This is useful if you cannot or don't want to change the
651	  command-line options your boot loader passes to the kernel.
652
653config EXTRA_TARGETS
654	string "Additional default image types"
655	help
656	  List additional targets to be built by the bootwrapper here (separated
657	  by spaces).  This is useful for targets that depend of device tree
658	  files in the .dts directory.
659
660	  Targets in this list will be build as part of the default build
661	  target, or when the user does a 'make zImage' or a
662	  'make zImage.initrd'.
663
664	  If unsure, leave blank
665
666config ARCH_WANTS_FREEZER_CONTROL
667	def_bool y
668	depends on ADB_PMU
669
670source kernel/power/Kconfig
671
672config SECCOMP
673	bool "Enable seccomp to safely compute untrusted bytecode"
674	depends on PROC_FS
675	default y
676	help
677	  This kernel feature is useful for number crunching applications
678	  that may need to compute untrusted bytecode during their
679	  execution. By using pipes or other transports made available to
680	  the process as file descriptors supporting the read/write
681	  syscalls, it's possible to isolate those applications in
682	  their own address space using seccomp. Once seccomp is
683	  enabled via /proc/<pid>/seccomp, it cannot be disabled
684	  and the task is only allowed to execute a few safe syscalls
685	  defined by each seccomp mode.
686
687	  If unsure, say Y. Only embedded should say N here.
688
689endmenu
690
691config ISA_DMA_API
692	bool
693	default PCI
694
695menu "Bus options"
696
697config ISA
698	bool "Support for ISA-bus hardware"
699	depends on PPC_CHRP
700	select PPC_I8259
701	help
702	  Find out whether you have ISA slots on your motherboard.  ISA is the
703	  name of a bus system, i.e. the way the CPU talks to the other stuff
704	  inside your box.  If you have an Apple machine, say N here; if you
705	  have an IBM RS/6000 or pSeries machine, say Y.  If you have an
706	  embedded board, consult your board documentation.
707
708config ZONE_DMA
709	bool
710	default y
711
712config NEED_DMA_MAP_STATE
713	def_bool (PPC64 || NOT_COHERENT_CACHE)
714
715config NEED_SG_DMA_LENGTH
716	def_bool y
717
718config GENERIC_ISA_DMA
719	bool
720	depends on ISA_DMA_API
721	default y
722
723config PPC_INDIRECT_PCI
724	bool
725	depends on PCI
726	default y if 40x || 44x
727	default n
728
729config EISA
730	bool
731
732config SBUS
733	bool
734
735config FSL_SOC
736	bool
737
738config FSL_PCI
739 	bool
740	select PPC_INDIRECT_PCI
741	select PCI_QUIRKS
742
743config FSL_PMC
744	bool
745	default y
746	depends on SUSPEND && (PPC_85xx || PPC_86xx)
747	help
748	  Freescale MPC85xx/MPC86xx power management controller support
749	  (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
750
751config PPC4xx_CPM
752	bool
753	default y
754	depends on SUSPEND && (44x || 40x)
755	help
756	  PPC4xx Clock Power Management (CPM) support (suspend/resume).
757	  It also enables support for two different idle states (idle-wait
758	  and idle-doze).
759
760config 4xx_SOC
761	bool
762
763config FSL_LBC
764	bool "Freescale Local Bus support"
765	depends on FSL_SOC
766	help
767	  Enables reporting of errors from the Freescale local bus
768	  controller.  Also contains some common code used by
769	  drivers for specific local bus peripherals.
770
771config FSL_GTM
772	bool
773	depends on PPC_83xx || QUICC_ENGINE || CPM2
774	help
775	  Freescale General-purpose Timers support
776
777# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
778config MCA
779	bool
780
781# Platforms that what PCI turned unconditionally just do select PCI
782# in their config node.  Platforms that want to choose at config
783# time should select PPC_PCI_CHOICE
784config PPC_PCI_CHOICE
785	bool
786
787config PCI
788	bool "PCI support" if PPC_PCI_CHOICE
789	default y if !40x && !CPM2 && !8xx && !PPC_83xx \
790		&& !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
791	default PCI_QSPAN if !4xx && !CPM2 && 8xx
792	select GENERIC_PCI_IOMAP
793	help
794	  Find out whether your system includes a PCI bus. PCI is the name of
795	  a bus system, i.e. the way the CPU talks to the other stuff inside
796	  your box.  If you say Y here, the kernel will include drivers and
797	  infrastructure code to support PCI bus devices.
798
799config PCI_DOMAINS
800	def_bool PCI
801
802config PCI_SYSCALL
803	def_bool PCI
804
805config PCI_QSPAN
806	bool "QSpan PCI"
807	depends on !4xx && !CPM2 && 8xx
808	select PPC_I8259
809	help
810	  Say Y here if you have a system based on a Motorola 8xx-series
811	  embedded processor with a QSPAN PCI interface, otherwise say N.
812
813config PCI_8260
814	bool
815	depends on PCI && 8260
816	select PPC_INDIRECT_PCI
817	default y
818
819source "drivers/pci/pcie/Kconfig"
820
821source "drivers/pci/Kconfig"
822
823source "drivers/pcmcia/Kconfig"
824
825source "drivers/pci/hotplug/Kconfig"
826
827config HAS_RAPIDIO
828	bool
829	default n
830
831config RAPIDIO
832	tristate "RapidIO support"
833	depends on HAS_RAPIDIO || PCI
834	help
835	  If you say Y here, the kernel will include drivers and
836	  infrastructure code to support RapidIO interconnect devices.
837
838config FSL_RIO
839	bool "Freescale Embedded SRIO Controller support"
840	depends on RAPIDIO = y && HAS_RAPIDIO
841	default "n"
842	---help---
843	  Include support for RapidIO controller on Freescale embedded
844	  processors (MPC8548, MPC8641, etc).
845
846source "drivers/rapidio/Kconfig"
847
848endmenu
849
850config NONSTATIC_KERNEL
851	bool
852	default n
853
854menu "Advanced setup"
855	depends on PPC32
856
857config ADVANCED_OPTIONS
858	bool "Prompt for advanced kernel configuration options"
859	help
860	  This option will enable prompting for a variety of advanced kernel
861	  configuration options.  These options can cause the kernel to not
862	  work if they are set incorrectly, but can be used to optimize certain
863	  aspects of kernel memory management.
864
865	  Unless you know what you are doing, say N here.
866
867comment "Default settings for advanced configuration options are used"
868	depends on !ADVANCED_OPTIONS
869
870config LOWMEM_SIZE_BOOL
871	bool "Set maximum low memory"
872	depends on ADVANCED_OPTIONS
873	help
874	  This option allows you to set the maximum amount of memory which
875	  will be used as "low memory", that is, memory which the kernel can
876	  access directly, without having to set up a kernel virtual mapping.
877	  This can be useful in optimizing the layout of kernel virtual
878	  memory.
879
880	  Say N here unless you know what you are doing.
881
882config LOWMEM_SIZE
883	hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
884	default "0x30000000"
885
886config LOWMEM_CAM_NUM_BOOL
887	bool "Set number of CAMs to use to map low memory"
888	depends on ADVANCED_OPTIONS && FSL_BOOKE
889	help
890	  This option allows you to set the maximum number of CAM slots that
891	  will be used to map low memory.  There are a limited number of slots
892	  available and even more limited number that will fit in the L1 MMU.
893	  However, using more entries will allow mapping more low memory.  This
894	  can be useful in optimizing the layout of kernel virtual memory.
895
896	  Say N here unless you know what you are doing.
897
898config LOWMEM_CAM_NUM
899	depends on FSL_BOOKE
900	int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
901	default 3
902
903config DYNAMIC_MEMSTART
904	bool "Enable page aligned dynamic load address for kernel"
905	depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
906	select NONSTATIC_KERNEL
907	help
908	  This option enables the kernel to be loaded at any page aligned
909	  physical address. The kernel creates a mapping from KERNELBASE to
910	  the address where the kernel is loaded. The page size here implies
911	  the TLB page size of the mapping for kernel on the particular platform.
912	  Please refer to the init code for finding the TLB page size.
913
914	  DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
915	  kernel image, where the only restriction is the page aligned kernel
916	  load address. When this option is enabled, the compile time physical
917	  address CONFIG_PHYSICAL_START is ignored.
918
919	  This option is overridden by CONFIG_RELOCATABLE
920
921config RELOCATABLE
922	bool "Build a relocatable kernel"
923	depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE)
924	select NONSTATIC_KERNEL
925	help
926	  This builds a kernel image that is capable of running at the
927	  location the kernel is loaded at, without any alignment restrictions.
928	  This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
929
930	  One use is for the kexec on panic case where the recovery kernel
931	  must live at a different physical address than the primary
932	  kernel.
933
934	  Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
935	  it has been loaded at and the compile time physical addresses
936	  CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
937	  setting can still be useful to bootwrappers that need to know the
938	  load address of the kernel (eg. u-boot/mkimage).
939
940config RELOCATABLE_PPC32
941	def_bool y
942	depends on PPC32 && RELOCATABLE
943
944config PAGE_OFFSET_BOOL
945	bool "Set custom page offset address"
946	depends on ADVANCED_OPTIONS
947	help
948	  This option allows you to set the kernel virtual address at which
949	  the kernel will map low memory.  This can be useful in optimizing
950	  the virtual memory layout of the system.
951
952	  Say N here unless you know what you are doing.
953
954config PAGE_OFFSET
955	hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
956	default "0xc0000000"
957
958config KERNEL_START_BOOL
959	bool "Set custom kernel base address"
960	depends on ADVANCED_OPTIONS
961	help
962	  This option allows you to set the kernel virtual address at which
963	  the kernel will be loaded.  Normally this should match PAGE_OFFSET
964	  however there are times (like kdump) that one might not want them
965	  to be the same.
966
967	  Say N here unless you know what you are doing.
968
969config KERNEL_START
970	hex "Virtual address of kernel base" if KERNEL_START_BOOL
971	default PAGE_OFFSET if PAGE_OFFSET_BOOL
972	default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
973	default "0xc0000000"
974
975config PHYSICAL_START_BOOL
976	bool "Set physical address where the kernel is loaded"
977	depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
978	help
979	  This gives the physical address where the kernel is loaded.
980
981	  Say N here unless you know what you are doing.
982
983config PHYSICAL_START
984	hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
985	default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
986	default "0x00000000"
987
988config PHYSICAL_ALIGN
989	hex
990	default "0x04000000" if FSL_BOOKE
991	help
992	  This value puts the alignment restrictions on physical address
993	  where kernel is loaded and run from. Kernel is compiled for an
994	  address which meets above alignment restriction.
995
996config TASK_SIZE_BOOL
997	bool "Set custom user task size"
998	depends on ADVANCED_OPTIONS
999	help
1000	  This option allows you to set the amount of virtual address space
1001	  allocated to user tasks.  This can be useful in optimizing the
1002	  virtual memory layout of the system.
1003
1004	  Say N here unless you know what you are doing.
1005
1006config TASK_SIZE
1007	hex "Size of user task space" if TASK_SIZE_BOOL
1008	default "0x80000000" if PPC_8xx
1009	default "0xc0000000"
1010
1011config CONSISTENT_SIZE_BOOL
1012	bool "Set custom consistent memory pool size"
1013	depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1014	help
1015	  This option allows you to set the size of the
1016	  consistent memory pool.  This pool of virtual memory
1017	  is used to make consistent memory allocations.
1018
1019config CONSISTENT_SIZE
1020	hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1021	default "0x00200000" if NOT_COHERENT_CACHE
1022
1023config PIN_TLB
1024	bool "Pinned Kernel TLBs (860 ONLY)"
1025	depends on ADVANCED_OPTIONS && 8xx
1026endmenu
1027
1028if PPC64
1029config RELOCATABLE
1030	bool "Build a relocatable kernel"
1031	depends on !COMPILE_TEST
1032	select NONSTATIC_KERNEL
1033	help
1034	  This builds a kernel image that is capable of running anywhere
1035	  in the RMA (real memory area) at any 16k-aligned base address.
1036	  The kernel is linked as a position-independent executable (PIE)
1037	  and contains dynamic relocations which are processed early
1038	  in the bootup process.
1039
1040	  One use is for the kexec on panic case where the recovery kernel
1041	  must live at a different physical address than the primary
1042	  kernel.
1043
1044# This value must have zeroes in the bottom 60 bits otherwise lots will break
1045config PAGE_OFFSET
1046	hex
1047	default "0xc000000000000000"
1048config KERNEL_START
1049	hex
1050	default "0xc000000000000000"
1051config PHYSICAL_START
1052	hex
1053	default "0x00000000"
1054endif
1055
1056config	ARCH_RANDOM
1057	def_bool n
1058
1059source "net/Kconfig"
1060
1061source "drivers/Kconfig"
1062
1063source "fs/Kconfig"
1064
1065source "arch/powerpc/sysdev/qe_lib/Kconfig"
1066
1067source "lib/Kconfig"
1068
1069source "arch/powerpc/Kconfig.debug"
1070
1071source "security/Kconfig"
1072
1073config KEYS_COMPAT
1074	bool
1075	depends on COMPAT && KEYS
1076	default y
1077
1078source "crypto/Kconfig"
1079
1080config PPC_LIB_RHEAP
1081	bool
1082
1083source "arch/powerpc/kvm/Kconfig"
1084