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 ARCH_HAS_ILOG2_U32
48 config ARCH_HAS_ILOG2_U64
52 config GENERIC_HWEIGHT
56 config GENERIC_CALIBRATE_DELAY
60 config GENERIC_FIND_NEXT_BIT
78 depends on COMPAT && SYSVIPC
81 # All PPC32s use generic nvram driver through ppc_md
86 config SCHED_NO_NO_OMIT_FRAME_POINTER
90 config ARCH_MAY_HAVE_PC_FDC
101 config GENERIC_TBSYNC
103 default y if PPC32 && SMP
115 config DEFAULT_UIMAGE
118 Used to allow a board to specify it wants a uImage built by default
121 menu "Processor support"
123 prompt "Processor Type"
128 bool "52xx/6xx/7xx/74xx"
132 There are four families of PowerPC chips supported. The more common
133 types (601, 603, 604, 740, 750, 7400), the Motorola embedded
134 versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
135 embedded versions (403 and 405) and the high end 64 bit Power
136 processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
138 This option is the catch-all for 6xx types, including some of the
139 embedded versions. Unless there is see an option for the specific
140 chip family you are using, you want this option.
142 You do not want this if you are building a kernel for a 64 bit
143 IBM RS/6000 or an Apple G5, choose 6xx.
145 If unsure, select this option
147 Note that the kernel runs in 32-bit mode even on 64-bit chips.
150 bool "Freescale 82xx"
155 bool "Freescale 83xx"
162 bool "Freescale 85xx"
168 bool "Freescale 86xx"
174 The Freescale E600 SoCs have 74xx cores.
183 select PPC_DCR_NATIVE
187 select PPC_DCR_NATIVE
191 bool "Freescale e200"
196 bool "Optimize for POWER4"
200 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
201 The resulting binary will not work on POWER3 or RS64 processors
202 when compiled with binutils 2.15 or later.
207 default y if !POWER4_ONLY
216 # this is temp to handle compat with arch=ppc
220 # this is temp to handle compat with arch=ppc
224 # this is temp to handle compat with arch=ppc
235 config PPC_DCR_NATIVE
245 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
248 config PPC_OF_PLATFORM_PCI
250 depends on PPC64 # not supported on 32 bits yet
255 depends on E200 || E500
260 depends on E200 || E500
265 depends on 44x || E500
267 default y if E500 && PHYS_64BIT
270 bool 'Large physical address support' if E500
271 depends on 44x || E500
272 select RESOURCES_64BIT
275 This option enables kernel support for larger than 32-bit physical
276 addresses. This features is not be available on all e500 cores.
278 If in doubt, say N here.
281 bool "AltiVec Support"
282 depends on CLASSIC32 || POWER4
284 This option enables kernel support for the Altivec extensions to the
285 PowerPC processor. The kernel currently supports saving and restoring
286 altivec registers, and turning on the 'altivec enable' bit so user
287 processes can execute altivec instructions.
289 This option is only usefully if you have a processor that supports
290 altivec (G4, otherwise known as 74xx series), but does not have
291 any affect on a non-altivec cpu (it does, however add code to the
294 If in doubt, say Y here.
298 depends on E200 || E500
301 This option enables kernel support for the Signal Processing
302 Extensions (SPE) to the PowerPC processor. The kernel currently
303 supports saving and restoring SPE registers, and turning on the
304 'spe enable' bit so user processes can execute SPE instructions.
306 This option is only useful if you have a processor that supports
307 SPE (e500, otherwise known as 85xx series), but does not have any
308 effect on a non-spe cpu (it does, however add code to the kernel).
310 If in doubt, say Y here.
314 depends on 6xx || POWER3 || POWER4 || PPC64
317 config PPC_STD_MMU_32
319 depends on PPC_STD_MMU && PPC32
321 config VIRT_CPU_ACCOUNTING
322 bool "Deterministic task and CPU time accounting"
326 Select this option to enable more accurate task and CPU time
327 accounting. This is done by reading a CPU counter on each
328 kernel entry and exit and on transitions within the kernel
329 between system, softirq and hardirq state, so there is a
330 small performance impact. This also enables accounting of
331 stolen time on logically-partitioned systems running on
332 IBM POWER5-based machines.
334 If in doubt, say Y here.
337 depends on PPC_STD_MMU
338 bool "Symmetric multi-processing support"
340 This enables support for systems with more than one CPU. If you have
341 a system with only one CPU, say N. If you have a system with more
342 than one CPU, say Y. Note that the kernel does not currently
343 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
344 since they have inadequate hardware support for multiprocessor
347 If you say N here, the kernel will run on single and multiprocessor
348 machines, but will use only one CPU of a multiprocessor machine. If
349 you say Y here, the kernel will run on single-processor machines.
350 On a single-processor machine, the kernel will run faster if you say
353 If you don't know what to do here, say N.
356 int "Maximum number of CPUs (2-128)"
359 default "32" if PPC64
362 config NOT_COHERENT_CACHE
364 depends on 4xx || 8xx || E200
368 source "init/Kconfig"
370 menu "Platform support"
371 depends on PPC64 || CLASSIC32
374 prompt "Machine type"
375 default PPC_MULTIPLATFORM
377 config PPC_MULTIPLATFORM
378 bool "Generic desktop/server/laptop"
380 Select this option if configuring for an IBM pSeries or
381 RS/6000 machine, an Apple machine, or a PReP, CHRP,
382 Maple or Cell-based machine.
385 bool "Embedded 6xx/7xx/7xxx-based board"
386 depends on PPC32 && (BROKEN||BROKEN_ON_SMP)
390 depends on PPC32 && BROKEN
392 Select APUS if configuring for a PowerUP Amiga.
393 More information is available at:
394 <http://linux-apus.sourceforge.net/>.
399 depends on PPC_MPC836x || PPC_MPC832x
402 The QUICC Engine (QE) is a new generation of communications
403 coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
404 Selecting this option means that you wish to build a kernel
405 for a machine with a QE coprocessor.
408 depends on PPC_MULTIPLATFORM && PPC64
409 bool "IBM pSeries & new (POWER5-based) iSeries"
413 select RTAS_ERROR_LOGGING
414 select PPC_UDBG_16550
419 bool "IBM Legacy iSeries"
420 depends on PPC_MULTIPLATFORM && PPC64
421 select PPC_INDIRECT_IO
424 bool "Common Hardware Reference Platform (CHRP) based machines"
425 depends on PPC_MULTIPLATFORM && PPC32
428 select PPC_INDIRECT_PCI
431 select PPC_UDBG_16550
444 config PPC_MPC5200_BUGFIX
445 bool "MPC5200 (L25R) bugfix support"
446 depends on PPC_MPC5200
449 Enable workarounds for original MPC5200 errata. This is not required
450 for MPC5200B based boards.
452 It is safe to say 'Y' here
455 bool "bPlan Efika 5k2. MPC5200B based computer"
456 depends on PPC_MULTIPLATFORM && PPC32
464 bool "Freescale Lite5200 Eval Board"
465 depends on PPC_MULTIPLATFORM && PPC32
470 bool "Apple PowerMac based machines"
471 depends on PPC_MULTIPLATFORM
473 select PPC_INDIRECT_PCI if PPC32
474 select PPC_MPC106 if PPC32
480 depends on PPC_PMAC && POWER4
483 select MPIC_BROKEN_U3
484 select GENERIC_TBSYNC
489 bool "PowerPC Reference Platform (PReP) based machines"
490 depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
493 select PPC_INDIRECT_PCI
494 select PPC_UDBG_16550
499 depends on PPC_MULTIPLATFORM && PPC64
500 bool "Maple 970FX Evaluation Board"
503 select MPIC_BROKEN_U3
504 select GENERIC_TBSYNC
505 select PPC_UDBG_16550
510 select ATA_NONSTANDARD if ATA
513 This option enables support for the Maple 970FX Evaluation Board.
514 For more information, refer to <http://www.970eval.com>
517 depends on PPC_MULTIPLATFORM && PPC64
518 bool "PA Semi SoC-based platforms"
521 select PPC_UDBG_16550
522 select GENERIC_TBSYNC
525 This option enables support for PA Semi's PWRficient line
526 of SoC processors, including PA6T-1682M
532 config PPC_CELL_NATIVE
536 select PPC_OF_PLATFORM_PCI
537 select PPC_INDIRECT_IO
542 config PPC_IBM_CELL_BLADE
543 bool "IBM Cell Blade"
544 depends on PPC_MULTIPLATFORM && PPC64
545 select PPC_CELL_NATIVE
548 select PPC_UDBG_16550
549 select UDBG_RTAS_CONSOLE
552 bool "Sony PS3 (incomplete)"
553 depends on PPC_MULTIPLATFORM && PPC64
555 select USB_ARCH_HAS_OHCI
556 select USB_OHCI_LITTLE_ENDIAN
557 select USB_OHCI_BIG_ENDIAN_MMIO
558 select USB_ARCH_HAS_EHCI
559 select USB_EHCI_BIG_ENDIAN_MMIO
561 This option enables support for the Sony PS3 game console
562 and other platforms using the PS3 hypervisor.
563 Support for this platform is not yet complete, so
564 enabling this will not result in a bootable kernel on a
568 bool "Toshiba's Cell Reference Set 'Celleb' Architecture"
569 depends on PPC_MULTIPLATFORM && PPC64
571 select PPC_OF_PLATFORM_PCI
572 select HAS_TXX9_SERIAL
574 select USB_OHCI_BIG_ENDIAN_MMIO
575 select USB_EHCI_BIG_ENDIAN_MMIO
579 depends on PPC_MULTIPLATFORM
581 Support for running natively on the hardware, i.e. without
582 a hypervisor. This option is not user-selectable but should
583 be selected by all platforms that need it.
585 config UDBG_RTAS_CONSOLE
586 bool "RTAS based debug console"
591 bool "BEAT based debug console"
592 depends on PPC_CELLEB
596 depends on PPC_PSERIES
602 depends on PPC_MULTIPLATFORM && PPC64
609 config RTAS_ERROR_LOGGING
615 bool "Proc interface to RTAS"
620 tristate "Firmware flash interface"
621 depends on PPC64 && RTAS_PROC
627 config MPIC_BROKEN_U3
633 depends on PPC_PSERIES || PPC_ISERIES
638 depends on PPC_PSERIES
639 bool "Support for GX bus based adapters"
641 Bus device driver for GX bus based adapters.
651 config PPC_INDIRECT_IO
660 source "drivers/cpufreq/Kconfig"
663 bool "Support for Apple PowerBooks"
664 depends on CPU_FREQ && ADB_PMU && PPC32
665 select CPU_FREQ_TABLE
667 This adds support for frequency switching on Apple PowerBooks,
668 this currently includes some models of iBook & Titanium
671 config CPU_FREQ_PMAC64
672 bool "Support for some Apple G5s"
673 depends on CPU_FREQ && PPC64
674 select CPU_FREQ_TABLE
676 This adds support for frequency switching on Apple iMac G5,
677 and some of the more recent desktop G5 machines as well.
679 config PPC601_SYNC_FIX
680 bool "Workarounds for PPC601 bugs"
681 depends on 6xx && (PPC_PREP || PPC_PMAC)
683 Some versions of the PPC601 (the first PowerPC chip) have bugs which
684 mean that extra synchronization instructions are required near
685 certain instructions, typically those that make major changes to the
686 CPU state. These extra instructions reduce performance slightly.
687 If you say N here, these extra instructions will not be included,
688 resulting in a kernel which will run faster but may not run at all
689 on some systems with the PPC601 chip.
691 If in doubt, say Y here.
694 bool "On-chip CPU temperature sensor support"
697 G3 and G4 processors have an on-chip temperature sensor called the
698 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
699 temperature within 2-4 degrees Celsius. This option shows the current
700 on-die temperature in /proc/cpuinfo if the cpu supports it.
702 Unfortunately, on some chip revisions, this sensor is very inaccurate
703 and in many cases, does not work at all, so don't assume the cpu
704 temp is actually what /proc/cpuinfo says it is.
707 bool "Interrupt driven TAU driver (DANGEROUS)"
710 The TAU supports an interrupt driven mode which causes an interrupt
711 whenever the temperature goes out of range. This is the fastest way
712 to get notified the temp has exceeded a range. With this option off,
713 a timer is used to re-check the temperature periodically.
715 However, on some cpus it appears that the TAU interrupt hardware
716 is buggy and can cause a situation which would lead unexplained hard
719 Unless you are extending the TAU driver, or enjoy kernel/hardware
720 debugging, leave this option off.
723 bool "Average high and low temp"
726 The TAU hardware can compare the temperature to an upper and lower
727 bound. The default behavior is to show both the upper and lower
728 bound in /proc/cpuinfo. If the range is large, the temperature is
729 either changing a lot, or the TAU hardware is broken (likely on some
730 G4's). If the range is small (around 4 degrees), the temperature is
731 relatively stable. If you say Y here, a single temperature value,
732 halfway between the upper and lower bounds, will be reported in
735 If in doubt, say N here.
739 source arch/powerpc/platforms/embedded6xx/Kconfig
740 source arch/powerpc/platforms/4xx/Kconfig
741 source arch/powerpc/platforms/82xx/Kconfig
742 source arch/powerpc/platforms/83xx/Kconfig
743 source arch/powerpc/platforms/85xx/Kconfig
744 source arch/powerpc/platforms/86xx/Kconfig
745 source arch/powerpc/platforms/8xx/Kconfig
746 source arch/powerpc/platforms/cell/Kconfig
747 source arch/powerpc/platforms/ps3/Kconfig
748 source arch/powerpc/platforms/pasemi/Kconfig
750 menu "Kernel options"
753 bool "High memory support"
756 source kernel/Kconfig.hz
757 source kernel/Kconfig.preempt
758 source "fs/Kconfig.binfmt"
760 # We optimistically allocate largepages from the VM, so make the limit
761 # large enough (16MB). This badly named config option is actually
763 config FORCE_MAX_ZONEORDER
766 default "9" if PPC_64K_PAGES
769 config MATH_EMULATION
770 bool "Math emulation"
771 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
773 Some PowerPC chips designed for embedded applications do not have
774 a floating-point unit and therefore do not implement the
775 floating-point instructions in the PowerPC instruction set. If you
776 say Y here, the kernel will include code to emulate a floating-point
777 unit, which will allow programs that use floating-point
781 bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
782 depends on EXPERIMENTAL && PPC64
785 Cause IO segments sent to a device for DMA to be merged virtually
786 by the IOMMU when they happen to have been allocated contiguously.
787 This doesn't add pressure to the IOMMU allocator. However, some
788 drivers don't support getting large merged segments coming back
789 from *_map_sg(). Say Y if you know the drivers you are using are
790 properly handling this case.
793 bool "Support for enabling/disabling CPUs"
794 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
796 Say Y here to be able to disable and re-enable individual
797 CPUs at runtime on SMP machines.
799 Say N if you are unsure.
801 config ARCH_ENABLE_MEMORY_HOTPLUG
805 bool "kexec system call (EXPERIMENTAL)"
806 depends on PPC_MULTIPLATFORM && EXPERIMENTAL
808 kexec is a system call that implements the ability to shutdown your
809 current kernel, and to start another kernel. It is like a reboot
810 but it is independent of the system firmware. And like a reboot
811 you can start any kernel with it, not just Linux.
813 The name comes from the similarity to the exec system call.
815 It is an ongoing process to be certain the hardware in a machine
816 is properly shutdown, so do not be surprised if this code does not
817 initially work for you. It may help to enable device hotplugging
818 support. As of this writing the exact hardware interface is
819 strongly in flux, so no good recommendation can be made.
822 bool "Build a kdump crash kernel (EXPERIMENTAL)"
823 depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
825 Build a kernel suitable for use as a kdump capture kernel.
826 The kernel will be linked at a different address than normal, and
827 so can only be used for Kdump.
829 Don't change this unless you know what you are doing.
833 depends on 8xx || 8260
837 bool "PC PS/2 style Keyboard"
838 depends on 4xx || CPM2
841 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
842 default y if PPC_PREP
845 bool "Distribute interrupts on all CPUs by default"
846 depends on SMP && !MV64360
848 This option gives the kernel permission to distribute IRQs across
849 multiple CPUs. Saying N here will route all IRQs to the first
850 CPU. Generally saying Y is safe, although some problems have been
851 reported with SMP Power Macintoshes with this option enabled.
853 source "arch/powerpc/platforms/pseries/Kconfig"
858 default y if SMP && PPC_PSERIES
863 depends on NEED_MULTIPLE_NODES
865 config ARCH_SELECT_MEMORY_MODEL
869 config ARCH_FLATMEM_ENABLE
871 depends on (PPC64 && !NUMA) || PPC32
873 config ARCH_SPARSEMEM_ENABLE
877 config ARCH_SPARSEMEM_DEFAULT
879 depends on (SMP && PPC_PSERIES) || PPC_PS3
881 config ARCH_POPULATES_NODE_MAP
886 config ARCH_MEMORY_PROBE
888 depends on MEMORY_HOTPLUG
890 # Some NUMA nodes have memory ranges that span
891 # other nodes. Even though a pfn is valid and
892 # between a node's start and end pfns, it may not
893 # reside on that node. See memmap_init_zone()
895 config NODES_SPAN_OTHER_NODES
897 depends on NEED_MULTIPLE_NODES
903 This option changes the kernel logical page size to 64k. On machines
904 without processor support for 64k pages, the kernel will simulate
905 them by loading each individual 4k page on demand transparently,
906 while on hardware with such support, it will be used to map
907 normal application pages.
910 bool "SMT (Hyperthreading) scheduler support"
911 depends on PPC64 && SMP
913 SMT scheduler support improves the CPU scheduler's decision making
914 when dealing with POWER5 cpus at a cost of slightly increased
915 overhead in some places. If unsure say N here.
917 config PROC_DEVICETREE
918 bool "Support for device tree in /proc"
921 This option adds a device-tree directory under /proc which contains
922 an image of the device tree that the kernel copies from Open
923 Firmware or other boot firmware. If unsure, say Y here.
925 source "arch/powerpc/platforms/prep/Kconfig"
928 bool "Default bootloader kernel arguments"
931 string "Initial kernel command string"
932 depends on CMDLINE_BOOL
933 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
935 On some platforms, there is currently no way for the boot loader to
936 pass arguments to the kernel. For these platforms, you can supply
937 some command-line options at build time by entering them here. In
938 most cases you will need to specify the root device here.
941 source kernel/power/Kconfig
945 bool "Enable seccomp to safely compute untrusted bytecode"
949 This kernel feature is useful for number crunching applications
950 that may need to compute untrusted bytecode during their
951 execution. By using pipes or other transports made available to
952 the process as file descriptors supporting the read/write
953 syscalls, it's possible to isolate those applications in
954 their own address space using seccomp. Once seccomp is
955 enabled via /proc/<pid>/seccomp, it cannot be disabled
956 and the task is only allowed to execute a few safe syscalls
957 defined by each seccomp mode.
959 If unsure, say Y. Only embedded should say N here.
970 bool "Support for ISA-bus hardware"
971 depends on PPC_PREP || PPC_CHRP
974 Find out whether you have ISA slots on your motherboard. ISA is the
975 name of a bus system, i.e. the way the CPU talks to the other stuff
976 inside your box. If you have an Apple machine, say N here; if you
977 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
978 you have an embedded board, consult your board documentation.
984 config GENERIC_ISA_DMA
986 depends on PPC64 || POWER4 || 6xx && !CPM2
1001 config PPC_INDIRECT_PCI
1004 default y if 40x || 44x
1016 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
1021 bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
1022 || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) || MPC7448HPC2 || PPC_PS3
1023 default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \
1024 && !PPC_85xx && !PPC_86xx
1025 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
1026 default PCI_QSPAN if !4xx && !CPM2 && 8xx
1028 Find out whether your system includes a PCI bus. PCI is the name of
1029 a bus system, i.e. the way the CPU talks to the other stuff inside
1030 your box. If you say Y here, the kernel will include drivers and
1031 infrastructure code to support PCI bus devices.
1039 depends on !4xx && !CPM2 && 8xx
1042 Say Y here if you have a system based on a Motorola 8xx-series
1043 embedded processor with a QSPAN PCI interface, otherwise say N.
1047 depends on PCI && 8260
1048 select PPC_INDIRECT_PCI
1052 bool "Enable workaround for MPC826x erratum PCI 9"
1053 depends on PCI_8260 && !ADS8272
1057 prompt "IDMA channel for PCI 9 workaround"
1058 depends on 8260_PCI9
1060 config 8260_PCI9_IDMA1
1063 config 8260_PCI9_IDMA2
1066 config 8260_PCI9_IDMA3
1069 config 8260_PCI9_IDMA4
1074 source "drivers/pci/pcie/Kconfig"
1076 source "drivers/pci/Kconfig"
1078 source "drivers/pcmcia/Kconfig"
1080 source "drivers/pci/hotplug/Kconfig"
1084 menu "Advanced setup"
1087 config ADVANCED_OPTIONS
1088 bool "Prompt for advanced kernel configuration options"
1090 This option will enable prompting for a variety of advanced kernel
1091 configuration options. These options can cause the kernel to not
1092 work if they are set incorrectly, but can be used to optimize certain
1093 aspects of kernel memory management.
1095 Unless you know what you are doing, say N here.
1097 comment "Default settings for advanced configuration options are used"
1098 depends on !ADVANCED_OPTIONS
1100 config HIGHMEM_START_BOOL
1101 bool "Set high memory pool address"
1102 depends on ADVANCED_OPTIONS && HIGHMEM
1104 This option allows you to set the base address of the kernel virtual
1105 area used to map high memory pages. This can be useful in
1106 optimizing the layout of kernel virtual memory.
1108 Say N here unless you know what you are doing.
1110 config HIGHMEM_START
1111 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
1112 default "0xfe000000"
1114 config LOWMEM_SIZE_BOOL
1115 bool "Set maximum low memory"
1116 depends on ADVANCED_OPTIONS
1118 This option allows you to set the maximum amount of memory which
1119 will be used as "low memory", that is, memory which the kernel can
1120 access directly, without having to set up a kernel virtual mapping.
1121 This can be useful in optimizing the layout of kernel virtual
1124 Say N here unless you know what you are doing.
1127 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
1128 default "0x30000000"
1130 config KERNEL_START_BOOL
1131 bool "Set custom kernel base address"
1132 depends on ADVANCED_OPTIONS
1134 This option allows you to set the kernel virtual address at which
1135 the kernel will map low memory (the kernel image will be linked at
1136 this address). This can be useful in optimizing the virtual memory
1137 layout of the system.
1139 Say N here unless you know what you are doing.
1142 hex "Virtual address of kernel base" if KERNEL_START_BOOL
1143 default "0xc0000000"
1145 config TASK_SIZE_BOOL
1146 bool "Set custom user task size"
1147 depends on ADVANCED_OPTIONS
1149 This option allows you to set the amount of virtual address space
1150 allocated to user tasks. This can be useful in optimizing the
1151 virtual memory layout of the system.
1153 Say N here unless you know what you are doing.
1156 hex "Size of user task space" if TASK_SIZE_BOOL
1157 default "0x80000000"
1159 config CONSISTENT_START_BOOL
1160 bool "Set custom consistent memory pool address"
1161 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1163 This option allows you to set the base virtual address
1164 of the consistent memory pool. This pool of virtual
1165 memory is used to make consistent memory allocations.
1167 config CONSISTENT_START
1168 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
1169 default "0xff100000" if NOT_COHERENT_CACHE
1171 config CONSISTENT_SIZE_BOOL
1172 bool "Set custom consistent memory pool size"
1173 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
1175 This option allows you to set the size of the
1176 consistent memory pool. This pool of virtual memory
1177 is used to make consistent memory allocations.
1179 config CONSISTENT_SIZE
1180 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
1181 default "0x00200000" if NOT_COHERENT_CACHE
1183 config BOOT_LOAD_BOOL
1184 bool "Set the boot link/load address"
1185 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
1187 This option allows you to set the initial load address of the zImage
1188 or zImage.initrd file. This can be useful if you are on a board
1189 which has a small amount of memory.
1191 Say N here unless you know what you are doing.
1194 hex "Link/load address for booting" if BOOT_LOAD_BOOL
1195 default "0x00400000" if 40x || 8xx || 8260
1196 default "0x01000000" if 44x
1197 default "0x00800000"
1200 bool "Pinned Kernel TLBs (860 ONLY)"
1201 depends on ADVANCED_OPTIONS && 8xx
1207 default "0xc000000000000000"
1210 source "net/Kconfig"
1212 source "drivers/Kconfig"
1216 # XXX source "arch/ppc/8xx_io/Kconfig"
1218 # XXX source "arch/ppc/8260_io/Kconfig"
1220 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1222 source "arch/powerpc/platforms/iseries/Kconfig"
1224 source "lib/Kconfig"
1226 menu "Instrumentation Support"
1227 depends on EXPERIMENTAL
1229 source "arch/powerpc/oprofile/Kconfig"
1232 bool "Kprobes (EXPERIMENTAL)"
1233 depends on !BOOKE && !4xx && KALLSYMS && EXPERIMENTAL && MODULES
1235 Kprobes allows you to trap at almost any kernel address and
1236 execute a callback function. register_kprobe() establishes
1237 a probepoint and specifies the callback. Kprobes is useful
1238 for kernel debugging, non-intrusive instrumentation and testing.
1239 If in doubt, say "N".
1242 source "arch/powerpc/Kconfig.debug"
1244 source "security/Kconfig"
1248 depends on COMPAT && KEYS
1251 source "crypto/Kconfig"