1 # For a description of the syntax of this configuration file,
2 # see Documentation/kbuild/kconfig-language.txt.
5 mainmenu "Linux/PowerPC Kernel Configuration"
11 This option selects whether a 32-bit or a 64-bit kernel
29 config GENERIC_HARDIRQS
37 config RWSEM_GENERIC_SPINLOCK
40 config RWSEM_XCHGADD_ALGORITHM
44 config GENERIC_HWEIGHT
48 config GENERIC_CALIBRATE_DELAY
52 config GENERIC_FIND_NEXT_BIT
70 depends on COMPAT && SYSVIPC
73 # All PPC32s use generic nvram driver through ppc_md
78 config SCHED_NO_NO_OMIT_FRAME_POINTER
82 config ARCH_MAY_HAVE_PC_FDC
95 default y if PPC32 && SMP
102 config DEFAULT_UIMAGE
105 Used to allow a board to specify it wants a uImage built by default
108 menu "Processor support"
110 prompt "Processor Type"
119 There are four families of PowerPC chips supported. The more common
120 types (601, 603, 604, 740, 750, 7400), the Motorola embedded
121 versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
122 embedded versions (403 and 405) and the high end 64 bit Power
123 processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
125 Unless you are building a kernel for one of the embedded processor
126 systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
127 Note that the kernel runs in 32-bit mode even on 64-bit chips.
130 bool "Freescale 52xx"
135 bool "Freescale 82xx"
140 bool "Freescale 83xx"
147 bool "Freescale 85xx"
153 bool "Freescale 86xx"
159 The Freescale E600 SoCs have 74xx cores.
163 select PPC_DCR_NATIVE
167 select PPC_DCR_NATIVE
173 bool "Freescale e200"
178 bool "Optimize for POWER4"
182 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
183 The resulting binary will not work on POWER3 or RS64 processors
184 when compiled with binutils 2.15 or later.
189 default y if !POWER4_ONLY
198 # this is temp to handle compat with arch=ppc
202 # this is temp to handle compat with arch=ppc
213 config PPC_DCR_NATIVE
223 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
226 config PPC_OF_PLATFORM_PCI
228 depends on PPC64 # not supported on 32 bits yet
233 depends on E200 || E500
238 depends on E200 || E500
243 depends on 44x || E500
245 default y if E500 && PHYS_64BIT
248 bool 'Large physical address support' if E500
249 depends on 44x || E500
250 select RESOURCES_64BIT
253 This option enables kernel support for larger than 32-bit physical
254 addresses. This features is not be available on all e500 cores.
256 If in doubt, say N here.
259 bool "AltiVec Support"
260 depends on CLASSIC32 || POWER4
262 This option enables kernel support for the Altivec extensions to the
263 PowerPC processor. The kernel currently supports saving and restoring
264 altivec registers, and turning on the 'altivec enable' bit so user
265 processes can execute altivec instructions.
267 This option is only usefully if you have a processor that supports
268 altivec (G4, otherwise known as 74xx series), but does not have
269 any affect on a non-altivec cpu (it does, however add code to the
272 If in doubt, say Y here.
276 depends on E200 || E500
279 This option enables kernel support for the Signal Processing
280 Extensions (SPE) to the PowerPC processor. The kernel currently
281 supports saving and restoring SPE registers, and turning on the
282 'spe enable' bit so user processes can execute SPE instructions.
284 This option is only useful if you have a processor that supports
285 SPE (e500, otherwise known as 85xx series), but does not have any
286 effect on a non-spe cpu (it does, however add code to the kernel).
288 If in doubt, say Y here.
292 depends on 6xx || POWER3 || POWER4 || PPC64
295 config PPC_STD_MMU_32
297 depends on PPC_STD_MMU && PPC32
299 config VIRT_CPU_ACCOUNTING
300 bool "Deterministic task and CPU time accounting"
304 Select this option to enable more accurate task and CPU time
305 accounting. This is done by reading a CPU counter on each
306 kernel entry and exit and on transitions within the kernel
307 between system, softirq and hardirq state, so there is a
308 small performance impact. This also enables accounting of
309 stolen time on logically-partitioned systems running on
310 IBM POWER5-based machines.
312 If in doubt, say Y here.
315 depends on PPC_STD_MMU
316 bool "Symmetric multi-processing support"
318 This enables support for systems with more than one CPU. If you have
319 a system with only one CPU, say N. If you have a system with more
320 than one CPU, say Y. Note that the kernel does not currently
321 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
322 since they have inadequate hardware support for multiprocessor
325 If you say N here, the kernel will run on single and multiprocessor
326 machines, but will use only one CPU of a multiprocessor machine. If
327 you say Y here, the kernel will run on single-processor machines.
328 On a single-processor machine, the kernel will run faster if you say
331 If you don't know what to do here, say N.
334 int "Maximum number of CPUs (2-128)"
337 default "32" if PPC64
340 config NOT_COHERENT_CACHE
342 depends on 4xx || 8xx || E200
346 source "init/Kconfig"
348 menu "Platform support"
349 depends on PPC64 || CLASSIC32
352 prompt "Machine type"
353 default PPC_MULTIPLATFORM
355 config PPC_MULTIPLATFORM
356 bool "Generic desktop/server/laptop"
358 Select this option if configuring for an IBM pSeries or
359 RS/6000 machine, an Apple machine, or a PReP, CHRP,
360 Maple or Cell-based machine.
363 bool "Embedded 6xx/7xx/7xxx-based board"
364 depends on PPC32 && (BROKEN||BROKEN_ON_SMP)
368 depends on PPC32 && BROKEN
370 Select APUS if configuring for a PowerUP Amiga.
371 More information is available at:
372 <http://linux-apus.sourceforge.net/>.
377 depends on PPC_MPC836x || PPC_MPC832x
380 The QUICC Engine (QE) is a new generation of communications
381 coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
382 Selecting this option means that you wish to build a kernel
383 for a machine with a QE coprocessor.
386 depends on PPC_MULTIPLATFORM && PPC64
387 bool "IBM pSeries & new (POWER5-based) iSeries"
391 select RTAS_ERROR_LOGGING
392 select PPC_UDBG_16550
396 bool "IBM Legacy iSeries"
397 depends on PPC_MULTIPLATFORM && PPC64
398 select PPC_INDIRECT_IO
401 bool "Common Hardware Reference Platform (CHRP) based machines"
402 depends on PPC_MULTIPLATFORM && PPC32
405 select PPC_INDIRECT_PCI
408 select PPC_UDBG_16550
412 bool "bPlan Efika 5k2. MPC5200B based computer"
413 depends on PPC_MULTIPLATFORM && PPC32
420 bool "Apple PowerMac based machines"
421 depends on PPC_MULTIPLATFORM
423 select PPC_INDIRECT_PCI if PPC32
424 select PPC_MPC106 if PPC32
429 depends on PPC_PMAC && POWER4
432 select MPIC_BROKEN_U3
433 select GENERIC_TBSYNC
438 bool "PowerPC Reference Platform (PReP) based machines"
439 depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
442 select PPC_INDIRECT_PCI
443 select PPC_UDBG_16550
447 depends on PPC_MULTIPLATFORM && PPC64
448 bool "Maple 970FX Evaluation Board"
451 select MPIC_BROKEN_U3
452 select GENERIC_TBSYNC
453 select PPC_UDBG_16550
457 This option enables support for the Maple 970FX Evaluation Board.
458 For more information, refer to <http://www.970eval.com>
461 depends on PPC_MULTIPLATFORM && PPC64
462 bool "PA Semi SoC-based platforms"
465 select PPC_UDBG_16550
466 select GENERIC_TBSYNC
468 This option enables support for PA Semi's PWRficient line
469 of SoC processors, including PA6T-1682M
475 config PPC_CELL_NATIVE
479 select PPC_OF_PLATFORM_PCI
480 select PPC_INDIRECT_IO
484 config PPC_IBM_CELL_BLADE
485 bool "IBM Cell Blade"
486 depends on PPC_MULTIPLATFORM && PPC64
487 select PPC_CELL_NATIVE
490 select PPC_UDBG_16550
491 select UDBG_RTAS_CONSOLE
493 config UDBG_RTAS_CONSOLE
494 bool "RTAS based debug console"
499 depends on PPC_PSERIES
505 depends on PPC_MULTIPLATFORM && PPC64
512 config RTAS_ERROR_LOGGING
518 bool "Proc interface to RTAS"
523 tristate "Firmware flash interface"
524 depends on PPC64 && RTAS_PROC
530 config MPIC_BROKEN_U3
536 depends on PPC_PSERIES || PPC_ISERIES
541 depends on PPC_PSERIES
542 bool "Support for GX bus based adapters"
544 Bus device driver for GX bus based adapters.
554 config PPC_INDIRECT_IO
563 source "drivers/cpufreq/Kconfig"
566 bool "Support for Apple PowerBooks"
567 depends on CPU_FREQ && ADB_PMU && PPC32
568 select CPU_FREQ_TABLE
570 This adds support for frequency switching on Apple PowerBooks,
571 this currently includes some models of iBook & Titanium
574 config CPU_FREQ_PMAC64
575 bool "Support for some Apple G5s"
576 depends on CPU_FREQ && PPC64
577 select CPU_FREQ_TABLE
579 This adds support for frequency switching on Apple iMac G5,
580 and some of the more recent desktop G5 machines as well.
582 config PPC601_SYNC_FIX
583 bool "Workarounds for PPC601 bugs"
584 depends on 6xx && (PPC_PREP || PPC_PMAC)
586 Some versions of the PPC601 (the first PowerPC chip) have bugs which
587 mean that extra synchronization instructions are required near
588 certain instructions, typically those that make major changes to the
589 CPU state. These extra instructions reduce performance slightly.
590 If you say N here, these extra instructions will not be included,
591 resulting in a kernel which will run faster but may not run at all
592 on some systems with the PPC601 chip.
594 If in doubt, say Y here.
597 bool "On-chip CPU temperature sensor support"
600 G3 and G4 processors have an on-chip temperature sensor called the
601 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
602 temperature within 2-4 degrees Celsius. This option shows the current
603 on-die temperature in /proc/cpuinfo if the cpu supports it.
605 Unfortunately, on some chip revisions, this sensor is very inaccurate
606 and in many cases, does not work at all, so don't assume the cpu
607 temp is actually what /proc/cpuinfo says it is.
610 bool "Interrupt driven TAU driver (DANGEROUS)"
613 The TAU supports an interrupt driven mode which causes an interrupt
614 whenever the temperature goes out of range. This is the fastest way
615 to get notified the temp has exceeded a range. With this option off,
616 a timer is used to re-check the temperature periodically.
618 However, on some cpus it appears that the TAU interrupt hardware
619 is buggy and can cause a situation which would lead unexplained hard
622 Unless you are extending the TAU driver, or enjoy kernel/hardware
623 debugging, leave this option off.
626 bool "Average high and low temp"
629 The TAU hardware can compare the temperature to an upper and lower
630 bound. The default behavior is to show both the upper and lower
631 bound in /proc/cpuinfo. If the range is large, the temperature is
632 either changing a lot, or the TAU hardware is broken (likely on some
633 G4's). If the range is small (around 4 degrees), the temperature is
634 relatively stable. If you say Y here, a single temperature value,
635 halfway between the upper and lower bounds, will be reported in
638 If in doubt, say N here.
642 source arch/powerpc/platforms/embedded6xx/Kconfig
643 source arch/powerpc/platforms/4xx/Kconfig
644 source arch/powerpc/platforms/82xx/Kconfig
645 source arch/powerpc/platforms/83xx/Kconfig
646 source arch/powerpc/platforms/85xx/Kconfig
647 source arch/powerpc/platforms/86xx/Kconfig
648 source arch/powerpc/platforms/8xx/Kconfig
649 source arch/powerpc/platforms/cell/Kconfig
651 menu "Kernel options"
654 bool "High memory support"
657 source kernel/Kconfig.hz
658 source kernel/Kconfig.preempt
659 source "fs/Kconfig.binfmt"
661 # We optimistically allocate largepages from the VM, so make the limit
662 # large enough (16MB). This badly named config option is actually
664 config FORCE_MAX_ZONEORDER
667 default "9" if PPC_64K_PAGES
670 config MATH_EMULATION
671 bool "Math emulation"
672 depends on 4xx || 8xx || E200 || E500
674 Some PowerPC chips designed for embedded applications do not have
675 a floating-point unit and therefore do not implement the
676 floating-point instructions in the PowerPC instruction set. If you
677 say Y here, the kernel will include code to emulate a floating-point
678 unit, which will allow programs that use floating-point
682 bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
683 depends on EXPERIMENTAL && PPC64
686 Cause IO segments sent to a device for DMA to be merged virtually
687 by the IOMMU when they happen to have been allocated contiguously.
688 This doesn't add pressure to the IOMMU allocator. However, some
689 drivers don't support getting large merged segments coming back
690 from *_map_sg(). Say Y if you know the drivers you are using are
691 properly handling this case.
694 bool "Support for enabling/disabling CPUs"
695 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
697 Say Y here to be able to disable and re-enable individual
698 CPUs at runtime on SMP machines.
700 Say N if you are unsure.
702 config ARCH_ENABLE_MEMORY_HOTPLUG
706 bool "kexec system call (EXPERIMENTAL)"
707 depends on PPC_MULTIPLATFORM && EXPERIMENTAL
709 kexec is a system call that implements the ability to shutdown your
710 current kernel, and to start another kernel. It is like a reboot
711 but it is independent of the system firmware. And like a reboot
712 you can start any kernel with it, not just Linux.
714 The name comes from the similarity to the exec system call.
716 It is an ongoing process to be certain the hardware in a machine
717 is properly shutdown, so do not be surprised if this code does not
718 initially work for you. It may help to enable device hotplugging
719 support. As of this writing the exact hardware interface is
720 strongly in flux, so no good recommendation can be made.
723 bool "Build a kdump crash kernel (EXPERIMENTAL)"
724 depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
726 Build a kernel suitable for use as a kdump capture kernel.
727 The kernel will be linked at a different address than normal, and
728 so can only be used for Kdump.
730 Don't change this unless you know what you are doing.
734 depends on 8xx || 8260
738 bool "PC PS/2 style Keyboard"
739 depends on 4xx || CPM2
742 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
743 default y if PPC_PREP
746 bool "Distribute interrupts on all CPUs by default"
747 depends on SMP && !MV64360
749 This option gives the kernel permission to distribute IRQs across
750 multiple CPUs. Saying N here will route all IRQs to the first
751 CPU. Generally saying Y is safe, although some problems have been
752 reported with SMP Power Macintoshes with this option enabled.
754 source "arch/powerpc/platforms/pseries/Kconfig"
759 default y if SMP && PPC_PSERIES
764 depends on NEED_MULTIPLE_NODES
766 config ARCH_SELECT_MEMORY_MODEL
770 config ARCH_FLATMEM_ENABLE
772 depends on (PPC64 && !NUMA) || PPC32
774 config ARCH_SPARSEMEM_ENABLE
778 config ARCH_SPARSEMEM_DEFAULT
780 depends on (SMP && PPC_PSERIES) || PPC_CELL
782 config ARCH_POPULATES_NODE_MAP
787 config ARCH_MEMORY_PROBE
789 depends on MEMORY_HOTPLUG
791 # Some NUMA nodes have memory ranges that span
792 # other nodes. Even though a pfn is valid and
793 # between a node's start and end pfns, it may not
794 # reside on that node. See memmap_init_zone()
796 config NODES_SPAN_OTHER_NODES
798 depends on NEED_MULTIPLE_NODES
804 This option changes the kernel logical page size to 64k. On machines
805 without processor support for 64k pages, the kernel will simulate
806 them by loading each individual 4k page on demand transparently,
807 while on hardware with such support, it will be used to map
808 normal application pages.
811 bool "SMT (Hyperthreading) scheduler support"
812 depends on PPC64 && SMP
814 SMT scheduler support improves the CPU scheduler's decision making
815 when dealing with POWER5 cpus at a cost of slightly increased
816 overhead in some places. If unsure say N here.
818 config PROC_DEVICETREE
819 bool "Support for device tree in /proc"
822 This option adds a device-tree directory under /proc which contains
823 an image of the device tree that the kernel copies from Open
824 Firmware or other boot firmware. If unsure, say Y here.
826 source "arch/powerpc/platforms/prep/Kconfig"
829 bool "Default bootloader kernel arguments"
830 depends on !PPC_ISERIES
833 string "Initial kernel command string"
834 depends on CMDLINE_BOOL
835 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
837 On some platforms, there is currently no way for the boot loader to
838 pass arguments to the kernel. For these platforms, you can supply
839 some command-line options at build time by entering them here. In
840 most cases you will need to specify the root device here.
843 source kernel/power/Kconfig
847 bool "Enable seccomp to safely compute untrusted bytecode"
851 This kernel feature is useful for number crunching applications
852 that may need to compute untrusted bytecode during their
853 execution. By using pipes or other transports made available to
854 the process as file descriptors supporting the read/write
855 syscalls, it's possible to isolate those applications in
856 their own address space using seccomp. Once seccomp is
857 enabled via /proc/<pid>/seccomp, it cannot be disabled
858 and the task is only allowed to execute a few safe syscalls
859 defined by each seccomp mode.
861 If unsure, say Y. Only embedded should say N here.
872 bool "Support for ISA-bus hardware"
873 depends on PPC_PREP || PPC_CHRP
876 Find out whether you have ISA slots on your motherboard. ISA is the
877 name of a bus system, i.e. the way the CPU talks to the other stuff
878 inside your box. If you have an Apple machine, say N here; if you
879 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
880 you have an embedded board, consult your board documentation.
882 config GENERIC_ISA_DMA
884 depends on PPC64 || POWER4 || 6xx && !CPM2
899 config PPC_INDIRECT_PCI
902 default y if 40x || 44x
914 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
919 bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
920 || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) || MPC7448HPC2
921 default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \
922 && !PPC_85xx && !PPC_86xx
923 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
924 default PCI_QSPAN if !4xx && !CPM2 && 8xx
926 Find out whether your system includes a PCI bus. PCI is the name of
927 a bus system, i.e. the way the CPU talks to the other stuff inside
928 your box. If you say Y here, the kernel will include drivers and
929 infrastructure code to support PCI bus devices.
937 depends on !4xx && !CPM2 && 8xx
940 Say Y here if you have a system based on a Motorola 8xx-series
941 embedded processor with a QSPAN PCI interface, otherwise say N.
945 depends on PCI && 8260
946 select PPC_INDIRECT_PCI
950 bool "Enable workaround for MPC826x erratum PCI 9"
951 depends on PCI_8260 && !ADS8272
955 prompt "IDMA channel for PCI 9 workaround"
958 config 8260_PCI9_IDMA1
961 config 8260_PCI9_IDMA2
964 config 8260_PCI9_IDMA3
967 config 8260_PCI9_IDMA4
972 source "drivers/pci/pcie/Kconfig"
974 source "drivers/pci/Kconfig"
976 source "drivers/pcmcia/Kconfig"
978 source "drivers/pci/hotplug/Kconfig"
982 menu "Advanced setup"
985 config ADVANCED_OPTIONS
986 bool "Prompt for advanced kernel configuration options"
988 This option will enable prompting for a variety of advanced kernel
989 configuration options. These options can cause the kernel to not
990 work if they are set incorrectly, but can be used to optimize certain
991 aspects of kernel memory management.
993 Unless you know what you are doing, say N here.
995 comment "Default settings for advanced configuration options are used"
996 depends on !ADVANCED_OPTIONS
998 config HIGHMEM_START_BOOL
999 bool "Set high memory pool address"
1000 depends on ADVANCED_OPTIONS && HIGHMEM
1002 This option allows you to set the base address of the kernel virtual
1003 area used to map high memory pages. This can be useful in
1004 optimizing the layout of kernel virtual memory.
1006 Say N here unless you know what you are doing.
1008 config HIGHMEM_START
1009 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
1010 default "0xfe000000"
1012 config LOWMEM_SIZE_BOOL
1013 bool "Set maximum low memory"
1014 depends on ADVANCED_OPTIONS
1016 This option allows you to set the maximum amount of memory which
1017 will be used as "low memory", that is, memory which the kernel can
1018 access directly, without having to set up a kernel virtual mapping.
1019 This can be useful in optimizing the layout of kernel virtual
1022 Say N here unless you know what you are doing.
1025 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
1026 default "0x30000000"
1028 config KERNEL_START_BOOL
1029 bool "Set custom kernel base address"
1030 depends on ADVANCED_OPTIONS
1032 This option allows you to set the kernel virtual address at which
1033 the kernel will map low memory (the kernel image will be linked at
1034 this address). This can be useful in optimizing the virtual memory
1035 layout of the system.
1037 Say N here unless you know what you are doing.
1040 hex "Virtual address of kernel base" if KERNEL_START_BOOL
1041 default "0xc0000000"
1043 config TASK_SIZE_BOOL
1044 bool "Set custom user task size"
1045 depends on ADVANCED_OPTIONS
1047 This option allows you to set the amount of virtual address space
1048 allocated to user tasks. This can be useful in optimizing the
1049 virtual memory layout of the system.
1051 Say N here unless you know what you are doing.
1054 hex "Size of user task space" if TASK_SIZE_BOOL
1055 default "0x80000000"
1057 config CONSISTENT_START_BOOL
1058 bool "Set custom consistent memory pool address"
1059 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1061 This option allows you to set the base virtual address
1062 of the consistent memory pool. This pool of virtual
1063 memory is used to make consistent memory allocations.
1065 config CONSISTENT_START
1066 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
1067 default "0xff100000" if NOT_COHERENT_CACHE
1069 config CONSISTENT_SIZE_BOOL
1070 bool "Set custom consistent memory pool size"
1071 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1073 This option allows you to set the size of the
1074 consistent memory pool. This pool of virtual memory
1075 is used to make consistent memory allocations.
1077 config CONSISTENT_SIZE
1078 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1079 default "0x00200000" if NOT_COHERENT_CACHE
1081 config BOOT_LOAD_BOOL
1082 bool "Set the boot link/load address"
1083 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
1085 This option allows you to set the initial load address of the zImage
1086 or zImage.initrd file. This can be useful if you are on a board
1087 which has a small amount of memory.
1089 Say N here unless you know what you are doing.
1092 hex "Link/load address for booting" if BOOT_LOAD_BOOL
1093 default "0x00400000" if 40x || 8xx || 8260
1094 default "0x01000000" if 44x
1095 default "0x00800000"
1098 bool "Pinned Kernel TLBs (860 ONLY)"
1099 depends on ADVANCED_OPTIONS && 8xx
1105 default "0xc000000000000000"
1108 source "net/Kconfig"
1110 source "drivers/Kconfig"
1114 # XXX source "arch/ppc/8xx_io/Kconfig"
1116 # XXX source "arch/ppc/8260_io/Kconfig"
1118 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1120 source "arch/powerpc/platforms/iseries/Kconfig"
1122 source "lib/Kconfig"
1124 menu "Instrumentation Support"
1125 depends on EXPERIMENTAL
1127 source "arch/powerpc/oprofile/Kconfig"
1130 bool "Kprobes (EXPERIMENTAL)"
1131 depends on PPC64 && KALLSYMS && EXPERIMENTAL && MODULES
1133 Kprobes allows you to trap at almost any kernel address and
1134 execute a callback function. register_kprobe() establishes
1135 a probepoint and specifies the callback. Kprobes is useful
1136 for kernel debugging, non-intrusive instrumentation and testing.
1137 If in doubt, say "N".
1140 source "arch/powerpc/Kconfig.debug"
1142 source "security/Kconfig"
1146 depends on COMPAT && KEYS
1149 source "crypto/Kconfig"