xref: /linux/arch/powerpc/Kconfig (revision e0bf6c5ca2d3281f231c5f0c9bf145e9513644de)
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 ARCH_BINFMT_ELF_RANDOMIZE_PIE
92	select OF
93	select OF_EARLY_FLATTREE
94	select OF_RESERVED_MEM
95	select HAVE_FTRACE_MCOUNT_RECORD
96	select HAVE_DYNAMIC_FTRACE
97	select HAVE_FUNCTION_TRACER
98	select HAVE_FUNCTION_GRAPH_TRACER
99	select SYSCTL_EXCEPTION_TRACE
100	select ARCH_WANT_OPTIONAL_GPIOLIB
101	select VIRT_TO_BUS if !PPC64
102	select HAVE_IDE
103	select HAVE_IOREMAP_PROT
104	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
105	select HAVE_KPROBES
106	select HAVE_ARCH_KGDB
107	select HAVE_KRETPROBES
108	select HAVE_ARCH_TRACEHOOK
109	select HAVE_MEMBLOCK
110	select HAVE_MEMBLOCK_NODE_MAP
111	select HAVE_DMA_ATTRS
112	select HAVE_DMA_API_DEBUG
113	select HAVE_OPROFILE
114	select HAVE_DEBUG_KMEMLEAK
115	select ARCH_HAS_SG_CHAIN
116	select GENERIC_ATOMIC64 if PPC32
117	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
118	select HAVE_PERF_EVENTS
119	select HAVE_REGS_AND_STACK_ACCESS_API
120	select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
121	select ARCH_WANT_IPC_PARSE_VERSION
122	select SPARSE_IRQ
123	select IRQ_DOMAIN
124	select GENERIC_IRQ_SHOW
125	select GENERIC_IRQ_SHOW_LEVEL
126	select IRQ_FORCED_THREADING
127	select HAVE_RCU_TABLE_FREE if SMP
128	select HAVE_SYSCALL_TRACEPOINTS
129	select HAVE_BPF_JIT if PPC64
130	select HAVE_ARCH_JUMP_LABEL
131	select ARCH_HAVE_NMI_SAFE_CMPXCHG
132	select ARCH_HAS_GCOV_PROFILE_ALL
133	select GENERIC_SMP_IDLE_THREAD
134	select GENERIC_CMOS_UPDATE
135	select GENERIC_TIME_VSYSCALL_OLD
136	select GENERIC_CLOCKEVENTS
137	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
138	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
139	select GENERIC_STRNCPY_FROM_USER
140	select GENERIC_STRNLEN_USER
141	select HAVE_MOD_ARCH_SPECIFIC
142	select MODULES_USE_ELF_RELA
143	select CLONE_BACKWARDS
144	select ARCH_USE_BUILTIN_BSWAP
145	select OLD_SIGSUSPEND
146	select OLD_SIGACTION if PPC32
147	select HAVE_DEBUG_STACKOVERFLOW
148	select HAVE_IRQ_EXIT_ON_IRQ_STACK
149	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
150	select HAVE_ARCH_AUDITSYSCALL
151	select ARCH_SUPPORTS_ATOMIC_RMW
152	select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
153	select NO_BOOTMEM
154	select HAVE_GENERIC_RCU_GUP
155
156config GENERIC_CSUM
157	def_bool CPU_LITTLE_ENDIAN
158
159config EARLY_PRINTK
160	bool
161	default y
162
163config PANIC_TIMEOUT
164	int
165	default 180
166
167config COMPAT
168	bool
169	default y if PPC64
170	select COMPAT_BINFMT_ELF
171	select ARCH_WANT_OLD_COMPAT_IPC
172	select COMPAT_OLD_SIGACTION
173
174config SYSVIPC_COMPAT
175	bool
176	depends on COMPAT && SYSVIPC
177	default y
178
179# All PPC32s use generic nvram driver through ppc_md
180config GENERIC_NVRAM
181	bool
182	default y if PPC32
183
184config SCHED_OMIT_FRAME_POINTER
185	bool
186	default y
187
188config ARCH_MAY_HAVE_PC_FDC
189	bool
190	default PCI
191
192config PPC_OF
193	def_bool y
194
195config PPC_UDBG_16550
196	bool
197	default n
198
199config GENERIC_TBSYNC
200	bool
201	default y if PPC32 && SMP
202	default n
203
204config AUDIT_ARCH
205	bool
206	default y
207
208config GENERIC_BUG
209	bool
210	default y
211	depends on BUG
212
213config SYS_SUPPORTS_APM_EMULATION
214	default y if PMAC_APM_EMU
215	bool
216
217config EPAPR_BOOT
218	bool
219	help
220	  Used to allow a board to specify it wants an ePAPR compliant wrapper.
221	default n
222
223config DEFAULT_UIMAGE
224	bool
225	help
226	  Used to allow a board to specify it wants a uImage built by default
227	default n
228
229config ARCH_HIBERNATION_POSSIBLE
230	bool
231	default y
232
233config ARCH_SUSPEND_POSSIBLE
234	def_bool y
235	depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
236		   (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
237		   || 44x || 40x
238
239config PPC_DCR_NATIVE
240	bool
241	default n
242
243config PPC_DCR_MMIO
244	bool
245	default n
246
247config PPC_DCR
248	bool
249	depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
250	default y
251
252config PPC_OF_PLATFORM_PCI
253	bool
254	depends on PCI
255	depends on PPC64 # not supported on 32 bits yet
256	default n
257
258config ARCH_SUPPORTS_DEBUG_PAGEALLOC
259	depends on PPC32 || PPC_STD_MMU_64
260	def_bool y
261
262config ARCH_SUPPORTS_UPROBES
263	def_bool y
264
265config PPC_ADV_DEBUG_REGS
266	bool
267	depends on 40x || BOOKE
268	default y
269
270config PPC_ADV_DEBUG_IACS
271	int
272	depends on PPC_ADV_DEBUG_REGS
273	default 4 if 44x
274	default 2
275
276config PPC_ADV_DEBUG_DACS
277	int
278	depends on PPC_ADV_DEBUG_REGS
279	default 2
280
281config PPC_ADV_DEBUG_DVCS
282	int
283	depends on PPC_ADV_DEBUG_REGS
284	default 2 if 44x
285	default 0
286
287config PPC_ADV_DEBUG_DAC_RANGE
288	bool
289	depends on PPC_ADV_DEBUG_REGS && 44x
290	default y
291
292config PPC_EMULATE_SSTEP
293	bool
294	default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
295
296config ZONE_DMA32
297	bool
298	default y if PPC64
299
300source "init/Kconfig"
301
302source "kernel/Kconfig.freezer"
303
304source "arch/powerpc/sysdev/Kconfig"
305source "arch/powerpc/platforms/Kconfig"
306
307menu "Kernel options"
308
309config HIGHMEM
310	bool "High memory support"
311	depends on PPC32
312
313source kernel/Kconfig.hz
314source kernel/Kconfig.preempt
315source "fs/Kconfig.binfmt"
316
317config HUGETLB_PAGE_SIZE_VARIABLE
318	bool
319	depends on HUGETLB_PAGE
320	default y
321
322config MATH_EMULATION
323	bool "Math emulation"
324	depends on 4xx || 8xx || PPC_MPC832x || BOOKE
325	---help---
326	  Some PowerPC chips designed for embedded applications do not have
327	  a floating-point unit and therefore do not implement the
328	  floating-point instructions in the PowerPC instruction set.  If you
329	  say Y here, the kernel will include code to emulate a floating-point
330	  unit, which will allow programs that use floating-point
331	  instructions to run.
332
333	  This is also useful to emulate missing (optional) instructions
334	  such as fsqrt on cores that do have an FPU but do not implement
335	  them (such as Freescale BookE).
336
337choice
338	prompt "Math emulation options"
339	default MATH_EMULATION_FULL
340	depends on MATH_EMULATION
341
342config	MATH_EMULATION_FULL
343	bool "Emulate all the floating point instructions"
344	---help---
345	  Select this option will enable the kernel to support to emulate
346	  all the floating point instructions. If your SoC doesn't have
347	  a FPU, you should select this.
348
349config MATH_EMULATION_HW_UNIMPLEMENTED
350	bool "Just emulate the FPU unimplemented instructions"
351	---help---
352	  Select this if you know there does have a hardware FPU on your
353	  SoC, but some floating point instructions are not implemented by that.
354
355endchoice
356
357config PPC_TRANSACTIONAL_MEM
358       bool "Transactional Memory support for POWERPC"
359       depends on PPC_BOOK3S_64
360       depends on SMP
361       select ALTIVEC
362       select VSX
363       default n
364       ---help---
365         Support user-mode Transactional Memory on POWERPC.
366
367config IOMMU_HELPER
368	def_bool PPC64
369
370config SWIOTLB
371	bool "SWIOTLB support"
372	default n
373	select IOMMU_HELPER
374	---help---
375	  Support for IO bounce buffering for systems without an IOMMU.
376	  This allows us to DMA to the full physical address space on
377	  platforms where the size of a physical address is larger
378	  than the bus address.  Not all platforms support this.
379
380config HOTPLUG_CPU
381	bool "Support for enabling/disabling CPUs"
382	depends on SMP && (PPC_PSERIES || \
383	PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
384	---help---
385	  Say Y here to be able to disable and re-enable individual
386	  CPUs at runtime on SMP machines.
387
388	  Say N if you are unsure.
389
390config ARCH_CPU_PROBE_RELEASE
391	def_bool y
392	depends on HOTPLUG_CPU
393
394config ARCH_ENABLE_MEMORY_HOTPLUG
395	def_bool y
396
397config ARCH_HAS_WALK_MEMORY
398	def_bool y
399
400config ARCH_ENABLE_MEMORY_HOTREMOVE
401	def_bool y
402
403config PPC64_SUPPORTS_MEMORY_FAILURE
404	bool "Add support for memory hwpoison"
405	depends on PPC_BOOK3S_64
406	default "y" if PPC_POWERNV
407	select ARCH_SUPPORTS_MEMORY_FAILURE
408
409config KEXEC
410	bool "kexec system call"
411	depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
412	help
413	  kexec is a system call that implements the ability to shutdown your
414	  current kernel, and to start another kernel.  It is like a reboot
415	  but it is independent of the system firmware.   And like a reboot
416	  you can start any kernel with it, not just Linux.
417
418	  The name comes from the similarity to the exec system call.
419
420	  It is an ongoing process to be certain the hardware in a machine
421	  is properly shutdown, so do not be surprised if this code does not
422	  initially work for you.  As of this writing the exact hardware
423	  interface is strongly in flux, so no good recommendation can be
424	  made.
425
426config CRASH_DUMP
427	bool "Build a kdump crash kernel"
428	depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
429	select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
430	help
431	  Build a kernel suitable for use as a kdump capture kernel.
432	  The same kernel binary can be used as production kernel and dump
433	  capture kernel.
434
435config FA_DUMP
436	bool "Firmware-assisted dump"
437	depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
438	help
439	  A robust mechanism to get reliable kernel crash dump with
440	  assistance from firmware. This approach does not use kexec,
441	  instead firmware assists in booting the kdump kernel
442	  while preserving memory contents. Firmware-assisted dump
443	  is meant to be a kdump replacement offering robustness and
444	  speed not possible without system firmware assistance.
445
446	  If unsure, say "N"
447
448config IRQ_ALL_CPUS
449	bool "Distribute interrupts on all CPUs by default"
450	depends on SMP
451	help
452	  This option gives the kernel permission to distribute IRQs across
453	  multiple CPUs.  Saying N here will route all IRQs to the first
454	  CPU.  Generally saying Y is safe, although some problems have been
455	  reported with SMP Power Macintoshes with this option enabled.
456
457config NUMA
458	bool "NUMA support"
459	depends on PPC64
460	default y if SMP && PPC_PSERIES
461
462config NODES_SHIFT
463	int
464	default "8" if PPC64
465	default "4"
466	depends on NEED_MULTIPLE_NODES
467
468config USE_PERCPU_NUMA_NODE_ID
469	def_bool y
470	depends on NUMA
471
472config HAVE_MEMORYLESS_NODES
473	def_bool y
474	depends on NUMA
475
476config ARCH_SELECT_MEMORY_MODEL
477	def_bool y
478	depends on PPC64
479
480config ARCH_FLATMEM_ENABLE
481	def_bool y
482	depends on (PPC64 && !NUMA) || PPC32
483
484config ARCH_SPARSEMEM_ENABLE
485	def_bool y
486	depends on PPC64
487	select SPARSEMEM_VMEMMAP_ENABLE
488
489config ARCH_SPARSEMEM_DEFAULT
490	def_bool y
491	depends on (SMP && PPC_PSERIES) || PPC_PS3
492
493config SYS_SUPPORTS_HUGETLBFS
494	bool
495
496source "mm/Kconfig"
497
498config ARCH_MEMORY_PROBE
499	def_bool y
500	depends on MEMORY_HOTPLUG
501
502# Some NUMA nodes have memory ranges that span
503# other nodes.  Even though a pfn is valid and
504# between a node's start and end pfns, it may not
505# reside on that node.  See memmap_init_zone()
506# for details.
507config NODES_SPAN_OTHER_NODES
508	def_bool y
509	depends on NEED_MULTIPLE_NODES
510
511config PPC_HAS_HASH_64K
512	bool
513	depends on PPC64
514	default n
515
516config STDBINUTILS
517	bool "Using standard binutils settings"
518	depends on 44x
519	default y
520	help
521	  Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
522	  Note, that kernel will be able to run only those applications,
523	  which had been compiled using binutils later than 2.17.50.0.3 with
524	  '-zmax-page-size' set to 256K (the default is 64K). Or, if using
525	  the older binutils, you can patch them with a trivial patch, which
526	  changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
527
528choice
529	prompt "Page size"
530	default PPC_4K_PAGES
531	help
532	  Select the kernel logical page size. Increasing the page size
533	  will reduce software overhead at each page boundary, allow
534	  hardware prefetch mechanisms to be more effective, and allow
535	  larger dma transfers increasing IO efficiency and reducing
536	  overhead. However the utilization of memory will increase.
537	  For example, each cached file will using a multiple of the
538	  page size to hold its contents and the difference between the
539	  end of file and the end of page is wasted.
540
541	  Some dedicated systems, such as software raid serving with
542	  accelerated calculations, have shown significant increases.
543
544	  If you configure a 64 bit kernel for 64k pages but the
545	  processor does not support them, then the kernel will simulate
546	  them with 4k pages, loading them on demand, but with the
547	  reduced software overhead and larger internal fragmentation.
548	  For the 32 bit kernel, a large page option will not be offered
549	  unless it is supported by the configured processor.
550
551	  If unsure, choose 4K_PAGES.
552
553config PPC_4K_PAGES
554	bool "4k page size"
555
556config PPC_16K_PAGES
557	bool "16k page size" if 44x || PPC_8xx
558
559config PPC_64K_PAGES
560	bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
561	depends on !PPC_FSL_BOOK3E
562	select PPC_HAS_HASH_64K if PPC_STD_MMU_64
563
564config PPC_256K_PAGES
565	bool "256k page size" if 44x
566	depends on !STDBINUTILS
567	help
568	  Make the page size 256k.
569
570	  As the ELF standard only requires alignment to support page
571	  sizes up to 64k, you will need to compile all of your user
572	  space applications with a non-standard binutils settings
573	  (see the STDBINUTILS description for details).
574
575	  Say N unless you know what you are doing.
576
577endchoice
578
579config FORCE_MAX_ZONEORDER
580	int "Maximum zone order"
581	range 9 64 if PPC64 && PPC_64K_PAGES
582	default "9" if PPC64 && PPC_64K_PAGES
583	range 13 64 if PPC64 && !PPC_64K_PAGES
584	default "13" if PPC64 && !PPC_64K_PAGES
585	range 9 64 if PPC32 && PPC_16K_PAGES
586	default "9" if PPC32 && PPC_16K_PAGES
587	range 7 64 if PPC32 && PPC_64K_PAGES
588	default "7" if PPC32 && PPC_64K_PAGES
589	range 5 64 if PPC32 && PPC_256K_PAGES
590	default "5" if PPC32 && PPC_256K_PAGES
591	range 11 64
592	default "11"
593	help
594	  The kernel memory allocator divides physically contiguous memory
595	  blocks into "zones", where each zone is a power of two number of
596	  pages.  This option selects the largest power of two that the kernel
597	  keeps in the memory allocator.  If you need to allocate very large
598	  blocks of physically contiguous memory, then you may need to
599	  increase this value.
600
601	  This config option is actually maximum order plus one. For example,
602	  a value of 11 means that the largest free memory block is 2^10 pages.
603
604	  The page size is not necessarily 4KB.  For example, on 64-bit
605	  systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep
606	  this in mind when choosing a value for this option.
607
608config PPC_SUBPAGE_PROT
609	bool "Support setting protections for 4k subpages"
610	depends on PPC_STD_MMU_64 && PPC_64K_PAGES
611	help
612	  This option adds support for a system call to allow user programs
613	  to set access permissions (read/write, readonly, or no access)
614	  on the 4k subpages of each 64k page.
615
616config PPC_COPRO_BASE
617	bool
618	default n
619
620config SCHED_SMT
621	bool "SMT (Hyperthreading) scheduler support"
622	depends on PPC64 && SMP
623	help
624	  SMT scheduler support improves the CPU scheduler's decision making
625	  when dealing with POWER5 cpus at a cost of slightly increased
626	  overhead in some places. If unsure say N here.
627
628config PPC_DENORMALISATION
629	bool "PowerPC denormalisation exception handling"
630	depends on PPC_BOOK3S_64
631	default "y" if PPC_POWERNV
632	---help---
633	  Add support for handling denormalisation of single precision
634	  values.  Useful for bare metal only.  If unsure say Y here.
635
636config CMDLINE_BOOL
637	bool "Default bootloader kernel arguments"
638
639config CMDLINE
640	string "Initial kernel command string"
641	depends on CMDLINE_BOOL
642	default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
643	help
644	  On some platforms, there is currently no way for the boot loader to
645	  pass arguments to the kernel. For these platforms, you can supply
646	  some command-line options at build time by entering them here.  In
647	  most cases you will need to specify the root device here.
648
649config CMDLINE_FORCE
650	bool "Always use the default kernel command string"
651	depends on CMDLINE_BOOL
652	help
653	  Always use the default kernel command string, even if the boot
654	  loader passes other arguments to the kernel.
655	  This is useful if you cannot or don't want to change the
656	  command-line options your boot loader passes to the kernel.
657
658config EXTRA_TARGETS
659	string "Additional default image types"
660	help
661	  List additional targets to be built by the bootwrapper here (separated
662	  by spaces).  This is useful for targets that depend of device tree
663	  files in the .dts directory.
664
665	  Targets in this list will be build as part of the default build
666	  target, or when the user does a 'make zImage' or a
667	  'make zImage.initrd'.
668
669	  If unsure, leave blank
670
671config ARCH_WANTS_FREEZER_CONTROL
672	def_bool y
673	depends on ADB_PMU
674
675source kernel/power/Kconfig
676
677config SECCOMP
678	bool "Enable seccomp to safely compute untrusted bytecode"
679	depends on PROC_FS
680	default y
681	help
682	  This kernel feature is useful for number crunching applications
683	  that may need to compute untrusted bytecode during their
684	  execution. By using pipes or other transports made available to
685	  the process as file descriptors supporting the read/write
686	  syscalls, it's possible to isolate those applications in
687	  their own address space using seccomp. Once seccomp is
688	  enabled via /proc/<pid>/seccomp, it cannot be disabled
689	  and the task is only allowed to execute a few safe syscalls
690	  defined by each seccomp mode.
691
692	  If unsure, say Y. Only embedded should say N here.
693
694endmenu
695
696config ISA_DMA_API
697	bool
698	default PCI
699
700menu "Bus options"
701
702config ISA
703	bool "Support for ISA-bus hardware"
704	depends on PPC_CHRP
705	select PPC_I8259
706	help
707	  Find out whether you have ISA slots on your motherboard.  ISA is the
708	  name of a bus system, i.e. the way the CPU talks to the other stuff
709	  inside your box.  If you have an Apple machine, say N here; if you
710	  have an IBM RS/6000 or pSeries machine, say Y.  If you have an
711	  embedded board, consult your board documentation.
712
713config ZONE_DMA
714	bool
715	default y
716
717config NEED_DMA_MAP_STATE
718	def_bool (PPC64 || NOT_COHERENT_CACHE)
719
720config NEED_SG_DMA_LENGTH
721	def_bool y
722
723config GENERIC_ISA_DMA
724	bool
725	depends on ISA_DMA_API
726	default y
727
728config PPC_INDIRECT_PCI
729	bool
730	depends on PCI
731	default y if 40x || 44x
732	default n
733
734config EISA
735	bool
736
737config SBUS
738	bool
739
740config FSL_SOC
741	bool
742
743config FSL_PCI
744 	bool
745	select PPC_INDIRECT_PCI
746	select PCI_QUIRKS
747
748config FSL_PMC
749	bool
750	default y
751	depends on SUSPEND && (PPC_85xx || PPC_86xx)
752	help
753	  Freescale MPC85xx/MPC86xx power management controller support
754	  (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
755
756config PPC4xx_CPM
757	bool
758	default y
759	depends on SUSPEND && (44x || 40x)
760	help
761	  PPC4xx Clock Power Management (CPM) support (suspend/resume).
762	  It also enables support for two different idle states (idle-wait
763	  and idle-doze).
764
765config 4xx_SOC
766	bool
767
768config FSL_LBC
769	bool "Freescale Local Bus support"
770	depends on FSL_SOC
771	help
772	  Enables reporting of errors from the Freescale local bus
773	  controller.  Also contains some common code used by
774	  drivers for specific local bus peripherals.
775
776config FSL_GTM
777	bool
778	depends on PPC_83xx || QUICC_ENGINE || CPM2
779	help
780	  Freescale General-purpose Timers support
781
782# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
783config MCA
784	bool
785
786# Platforms that what PCI turned unconditionally just do select PCI
787# in their config node.  Platforms that want to choose at config
788# time should select PPC_PCI_CHOICE
789config PPC_PCI_CHOICE
790	bool
791
792config PCI
793	bool "PCI support" if PPC_PCI_CHOICE
794	default y if !40x && !CPM2 && !8xx && !PPC_83xx \
795		&& !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
796	default PCI_QSPAN if !4xx && !CPM2 && 8xx
797	select GENERIC_PCI_IOMAP
798	help
799	  Find out whether your system includes a PCI bus. PCI is the name of
800	  a bus system, i.e. the way the CPU talks to the other stuff inside
801	  your box.  If you say Y here, the kernel will include drivers and
802	  infrastructure code to support PCI bus devices.
803
804config PCI_DOMAINS
805	def_bool PCI
806
807config PCI_SYSCALL
808	def_bool PCI
809
810config PCI_QSPAN
811	bool "QSpan PCI"
812	depends on !4xx && !CPM2 && 8xx
813	select PPC_I8259
814	help
815	  Say Y here if you have a system based on a Motorola 8xx-series
816	  embedded processor with a QSPAN PCI interface, otherwise say N.
817
818config PCI_8260
819	bool
820	depends on PCI && 8260
821	select PPC_INDIRECT_PCI
822	default y
823
824source "drivers/pci/pcie/Kconfig"
825
826source "drivers/pci/Kconfig"
827
828source "drivers/pcmcia/Kconfig"
829
830source "drivers/pci/hotplug/Kconfig"
831
832config HAS_RAPIDIO
833	bool
834	default n
835
836config RAPIDIO
837	tristate "RapidIO support"
838	depends on HAS_RAPIDIO || PCI
839	help
840	  If you say Y here, the kernel will include drivers and
841	  infrastructure code to support RapidIO interconnect devices.
842
843config FSL_RIO
844	bool "Freescale Embedded SRIO Controller support"
845	depends on RAPIDIO = y && HAS_RAPIDIO
846	default "n"
847	---help---
848	  Include support for RapidIO controller on Freescale embedded
849	  processors (MPC8548, MPC8641, etc).
850
851source "drivers/rapidio/Kconfig"
852
853endmenu
854
855config NONSTATIC_KERNEL
856	bool
857	default n
858
859menu "Advanced setup"
860	depends on PPC32
861
862config ADVANCED_OPTIONS
863	bool "Prompt for advanced kernel configuration options"
864	help
865	  This option will enable prompting for a variety of advanced kernel
866	  configuration options.  These options can cause the kernel to not
867	  work if they are set incorrectly, but can be used to optimize certain
868	  aspects of kernel memory management.
869
870	  Unless you know what you are doing, say N here.
871
872comment "Default settings for advanced configuration options are used"
873	depends on !ADVANCED_OPTIONS
874
875config LOWMEM_SIZE_BOOL
876	bool "Set maximum low memory"
877	depends on ADVANCED_OPTIONS
878	help
879	  This option allows you to set the maximum amount of memory which
880	  will be used as "low memory", that is, memory which the kernel can
881	  access directly, without having to set up a kernel virtual mapping.
882	  This can be useful in optimizing the layout of kernel virtual
883	  memory.
884
885	  Say N here unless you know what you are doing.
886
887config LOWMEM_SIZE
888	hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
889	default "0x30000000"
890
891config LOWMEM_CAM_NUM_BOOL
892	bool "Set number of CAMs to use to map low memory"
893	depends on ADVANCED_OPTIONS && FSL_BOOKE
894	help
895	  This option allows you to set the maximum number of CAM slots that
896	  will be used to map low memory.  There are a limited number of slots
897	  available and even more limited number that will fit in the L1 MMU.
898	  However, using more entries will allow mapping more low memory.  This
899	  can be useful in optimizing the layout of kernel virtual memory.
900
901	  Say N here unless you know what you are doing.
902
903config LOWMEM_CAM_NUM
904	depends on FSL_BOOKE
905	int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
906	default 3
907
908config DYNAMIC_MEMSTART
909	bool "Enable page aligned dynamic load address for kernel"
910	depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
911	select NONSTATIC_KERNEL
912	help
913	  This option enables the kernel to be loaded at any page aligned
914	  physical address. The kernel creates a mapping from KERNELBASE to
915	  the address where the kernel is loaded. The page size here implies
916	  the TLB page size of the mapping for kernel on the particular platform.
917	  Please refer to the init code for finding the TLB page size.
918
919	  DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
920	  kernel image, where the only restriction is the page aligned kernel
921	  load address. When this option is enabled, the compile time physical
922	  address CONFIG_PHYSICAL_START is ignored.
923
924	  This option is overridden by CONFIG_RELOCATABLE
925
926config RELOCATABLE
927	bool "Build a relocatable kernel"
928	depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE)
929	select NONSTATIC_KERNEL
930	help
931	  This builds a kernel image that is capable of running at the
932	  location the kernel is loaded at, without any alignment restrictions.
933	  This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
934
935	  One use is for the kexec on panic case where the recovery kernel
936	  must live at a different physical address than the primary
937	  kernel.
938
939	  Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
940	  it has been loaded at and the compile time physical addresses
941	  CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START
942	  setting can still be useful to bootwrappers that need to know the
943	  load address of the kernel (eg. u-boot/mkimage).
944
945config RELOCATABLE_PPC32
946	def_bool y
947	depends on PPC32 && RELOCATABLE
948
949config PAGE_OFFSET_BOOL
950	bool "Set custom page offset address"
951	depends on ADVANCED_OPTIONS
952	help
953	  This option allows you to set the kernel virtual address at which
954	  the kernel will map low memory.  This can be useful in optimizing
955	  the virtual memory layout of the system.
956
957	  Say N here unless you know what you are doing.
958
959config PAGE_OFFSET
960	hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
961	default "0xc0000000"
962
963config KERNEL_START_BOOL
964	bool "Set custom kernel base address"
965	depends on ADVANCED_OPTIONS
966	help
967	  This option allows you to set the kernel virtual address at which
968	  the kernel will be loaded.  Normally this should match PAGE_OFFSET
969	  however there are times (like kdump) that one might not want them
970	  to be the same.
971
972	  Say N here unless you know what you are doing.
973
974config KERNEL_START
975	hex "Virtual address of kernel base" if KERNEL_START_BOOL
976	default PAGE_OFFSET if PAGE_OFFSET_BOOL
977	default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
978	default "0xc0000000"
979
980config PHYSICAL_START_BOOL
981	bool "Set physical address where the kernel is loaded"
982	depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
983	help
984	  This gives the physical address where the kernel is loaded.
985
986	  Say N here unless you know what you are doing.
987
988config PHYSICAL_START
989	hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
990	default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
991	default "0x00000000"
992
993config PHYSICAL_ALIGN
994	hex
995	default "0x04000000" if FSL_BOOKE
996	help
997	  This value puts the alignment restrictions on physical address
998	  where kernel is loaded and run from. Kernel is compiled for an
999	  address which meets above alignment restriction.
1000
1001config TASK_SIZE_BOOL
1002	bool "Set custom user task size"
1003	depends on ADVANCED_OPTIONS
1004	help
1005	  This option allows you to set the amount of virtual address space
1006	  allocated to user tasks.  This can be useful in optimizing the
1007	  virtual memory layout of the system.
1008
1009	  Say N here unless you know what you are doing.
1010
1011config TASK_SIZE
1012	hex "Size of user task space" if TASK_SIZE_BOOL
1013	default "0x80000000" if PPC_8xx
1014	default "0xc0000000"
1015
1016config CONSISTENT_SIZE_BOOL
1017	bool "Set custom consistent memory pool size"
1018	depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1019	help
1020	  This option allows you to set the size of the
1021	  consistent memory pool.  This pool of virtual memory
1022	  is used to make consistent memory allocations.
1023
1024config CONSISTENT_SIZE
1025	hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1026	default "0x00200000" if NOT_COHERENT_CACHE
1027
1028config PIN_TLB
1029	bool "Pinned Kernel TLBs (860 ONLY)"
1030	depends on ADVANCED_OPTIONS && 8xx
1031endmenu
1032
1033if PPC64
1034config RELOCATABLE
1035	bool "Build a relocatable kernel"
1036	depends on !COMPILE_TEST
1037	select NONSTATIC_KERNEL
1038	help
1039	  This builds a kernel image that is capable of running anywhere
1040	  in the RMA (real memory area) at any 16k-aligned base address.
1041	  The kernel is linked as a position-independent executable (PIE)
1042	  and contains dynamic relocations which are processed early
1043	  in the bootup process.
1044
1045	  One use is for the kexec on panic case where the recovery kernel
1046	  must live at a different physical address than the primary
1047	  kernel.
1048
1049# This value must have zeroes in the bottom 60 bits otherwise lots will break
1050config PAGE_OFFSET
1051	hex
1052	default "0xc000000000000000"
1053config KERNEL_START
1054	hex
1055	default "0xc000000000000000"
1056config PHYSICAL_START
1057	hex
1058	default "0x00000000"
1059endif
1060
1061config	ARCH_RANDOM
1062	def_bool n
1063
1064source "net/Kconfig"
1065
1066source "drivers/Kconfig"
1067
1068source "fs/Kconfig"
1069
1070source "arch/powerpc/sysdev/qe_lib/Kconfig"
1071
1072source "lib/Kconfig"
1073
1074source "arch/powerpc/Kconfig.debug"
1075
1076source "security/Kconfig"
1077
1078config KEYS_COMPAT
1079	bool
1080	depends on COMPAT && KEYS
1081	default y
1082
1083source "crypto/Kconfig"
1084
1085config PPC_LIB_RHEAP
1086	bool
1087
1088source "arch/powerpc/kvm/Kconfig"
1089