1 source "arch/powerpc/platforms/Kconfig.cputype"
20 config ARCH_PHYS_ADDR_T_64BIT
21 def_bool PPC64 || PHYS_64BIT
23 config ARCH_DMA_ADDR_T_64BIT
24 def_bool ARCH_PHYS_ADDR_T_64BIT
30 config HAVE_SETUP_PER_CPU_AREA
33 config NEED_PER_CPU_EMBED_FIRST_CHUNK
37 int "Number of virtual interrupt numbers"
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.
46 config STACKTRACE_SUPPORT
50 config HAVE_LATENCYTOP_SUPPORT
53 config TRACE_IRQFLAGS_SUPPORT
57 config LOCKDEP_SUPPORT
61 config RWSEM_GENERIC_SPINLOCK
64 config RWSEM_XCHGADD_ALGORITHM
68 config GENERIC_LOCKBREAK
71 depends on SMP && PREEMPT
73 config ARCH_HAS_ILOG2_U32
77 config ARCH_HAS_ILOG2_U64
81 config GENERIC_HWEIGHT
88 Generic GPIO API support
95 select OF_EARLY_FLATTREE
96 select HAVE_FTRACE_MCOUNT_RECORD
97 select HAVE_DYNAMIC_FTRACE
98 select HAVE_FUNCTION_TRACER
99 select HAVE_FUNCTION_GRAPH_TRACER
100 select SYSCTL_EXCEPTION_TRACE
101 select ARCH_WANT_OPTIONAL_GPIOLIB
102 select VIRT_TO_BUS if !PPC64
104 select HAVE_IOREMAP_PROT
105 select HAVE_EFFICIENT_UNALIGNED_ACCESS
107 select HAVE_ARCH_KGDB
108 select HAVE_KRETPROBES
109 select HAVE_ARCH_TRACEHOOK
111 select HAVE_MEMBLOCK_NODE_MAP
112 select HAVE_DMA_ATTRS
113 select HAVE_DMA_API_DEBUG
114 select USE_GENERIC_SMP_HELPERS if SMP
116 select HAVE_DEBUG_KMEMLEAK
117 select GENERIC_ATOMIC64 if PPC32
118 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
119 select HAVE_PERF_EVENTS
120 select HAVE_REGS_AND_STACK_ACCESS_API
121 select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
122 select HAVE_GENERIC_HARDIRQS
123 select ARCH_WANT_IPC_PARSE_VERSION
126 select GENERIC_IRQ_SHOW
127 select GENERIC_IRQ_SHOW_LEVEL
128 select IRQ_FORCED_THREADING
129 select HAVE_RCU_TABLE_FREE if SMP
130 select HAVE_SYSCALL_TRACEPOINTS
131 select HAVE_BPF_JIT if PPC64
132 select HAVE_ARCH_JUMP_LABEL
133 select ARCH_HAVE_NMI_SAFE_CMPXCHG
134 select GENERIC_SMP_IDLE_THREAD
135 select GENERIC_CMOS_UPDATE
136 select GENERIC_TIME_VSYSCALL_OLD
137 select GENERIC_CLOCKEVENTS
138 select GENERIC_STRNCPY_FROM_USER
139 select GENERIC_STRNLEN_USER
140 select HAVE_MOD_ARCH_SPECIFIC
141 select MODULES_USE_ELF_RELA
142 select CLONE_BACKWARDS
143 select ARCH_USE_BUILTIN_BSWAP
144 select OLD_SIGSUSPEND
145 select OLD_SIGACTION if PPC32
154 select COMPAT_BINFMT_ELF
155 select ARCH_WANT_OLD_COMPAT_IPC
156 select COMPAT_OLD_SIGACTION
158 config SYSVIPC_COMPAT
160 depends on COMPAT && SYSVIPC
163 # All PPC32s use generic nvram driver through ppc_md
168 config SCHED_OMIT_FRAME_POINTER
172 config ARCH_MAY_HAVE_PC_FDC
174 default !PPC_PSERIES || PCI
179 config PPC_UDBG_16550
183 config GENERIC_TBSYNC
185 default y if PPC32 && SMP
197 config SYS_SUPPORTS_APM_EMULATION
198 default y if PMAC_APM_EMU
204 Used to allow a board to specify it wants an ePAPR compliant wrapper.
207 config DEFAULT_UIMAGE
210 Used to allow a board to specify it wants a uImage built by default
216 config ARCH_HIBERNATION_POSSIBLE
220 config ARCH_SUSPEND_POSSIBLE
222 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
223 (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
226 config PPC_DCR_NATIVE
236 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
239 config PPC_OF_PLATFORM_PCI
242 depends on PPC64 # not supported on 32 bits yet
245 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
248 config ARCH_SUPPORTS_UPROBES
251 config PPC_ADV_DEBUG_REGS
253 depends on 40x || BOOKE
256 config PPC_ADV_DEBUG_IACS
258 depends on PPC_ADV_DEBUG_REGS
262 config PPC_ADV_DEBUG_DACS
264 depends on PPC_ADV_DEBUG_REGS
267 config PPC_ADV_DEBUG_DVCS
269 depends on PPC_ADV_DEBUG_REGS
273 config PPC_ADV_DEBUG_DAC_RANGE
275 depends on PPC_ADV_DEBUG_REGS && 44x
278 config PPC_EMULATE_SSTEP
280 default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
282 source "init/Kconfig"
284 source "kernel/Kconfig.freezer"
286 source "arch/powerpc/sysdev/Kconfig"
287 source "arch/powerpc/platforms/Kconfig"
289 menu "Kernel options"
292 bool "High memory support"
295 source kernel/Kconfig.hz
296 source kernel/Kconfig.preempt
297 source "fs/Kconfig.binfmt"
299 config HUGETLB_PAGE_SIZE_VARIABLE
301 depends on HUGETLB_PAGE
304 config MATH_EMULATION
305 bool "Math emulation"
306 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
308 Some PowerPC chips designed for embedded applications do not have
309 a floating-point unit and therefore do not implement the
310 floating-point instructions in the PowerPC instruction set. If you
311 say Y here, the kernel will include code to emulate a floating-point
312 unit, which will allow programs that use floating-point
315 config PPC_TRANSACTIONAL_MEM
316 bool "Transactional Memory support for POWERPC"
317 depends on PPC_BOOK3S_64
321 Support user-mode Transactional Memory on POWERPC.
323 config 8XX_MINIMAL_FPEMU
324 bool "Minimal math emulation for 8xx"
325 depends on 8xx && !MATH_EMULATION
327 Older arch/ppc kernels still emulated a few floating point
328 instructions such as load and store, even when full math
329 emulation is disabled. Say "Y" here if you want to preserve
332 It is recommended that you build a soft-float userspace instead.
338 bool "SWIOTLB support"
342 Support for IO bounce buffering for systems without an IOMMU.
343 This allows us to DMA to the full physical address space on
344 platforms where the size of a physical address is larger
345 than the bus address. Not all platforms support this.
348 bool "Support for enabling/disabling CPUs"
349 depends on SMP && HOTPLUG && (PPC_PSERIES || \
350 PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
352 Say Y here to be able to disable and re-enable individual
353 CPUs at runtime on SMP machines.
355 Say N if you are unsure.
357 config ARCH_CPU_PROBE_RELEASE
359 depends on HOTPLUG_CPU
361 config ARCH_ENABLE_MEMORY_HOTPLUG
364 config ARCH_HAS_WALK_MEMORY
367 config ARCH_ENABLE_MEMORY_HOTREMOVE
371 bool "kexec system call"
372 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
374 kexec is a system call that implements the ability to shutdown your
375 current kernel, and to start another kernel. It is like a reboot
376 but it is independent of the system firmware. And like a reboot
377 you can start any kernel with it, not just Linux.
379 The name comes from the similarity to the exec system call.
381 It is an ongoing process to be certain the hardware in a machine
382 is properly shutdown, so do not be surprised if this code does not
383 initially work for you. It may help to enable device hotplugging
384 support. As of this writing the exact hardware interface is
385 strongly in flux, so no good recommendation can be made.
388 bool "Build a kdump crash kernel"
389 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
390 select RELOCATABLE if PPC64 || 44x
391 select DYNAMIC_MEMSTART if FSL_BOOKE
393 Build a kernel suitable for use as a kdump capture kernel.
394 The same kernel binary can be used as production kernel and dump
398 bool "Firmware-assisted dump"
399 depends on PPC64 && PPC_RTAS && CRASH_DUMP
401 A robust mechanism to get reliable kernel crash dump with
402 assistance from firmware. This approach does not use kexec,
403 instead firmware assists in booting the kdump kernel
404 while preserving memory contents. Firmware-assisted dump
405 is meant to be a kdump replacement offering robustness and
406 speed not possible without system firmware assistance.
411 bool "Distribute interrupts on all CPUs by default"
412 depends on SMP && !MV64360
414 This option gives the kernel permission to distribute IRQs across
415 multiple CPUs. Saying N here will route all IRQs to the first
416 CPU. Generally saying Y is safe, although some problems have been
417 reported with SMP Power Macintoshes with this option enabled.
422 default y if SMP && PPC_PSERIES
428 depends on NEED_MULTIPLE_NODES
430 config ARCH_SELECT_MEMORY_MODEL
434 config ARCH_FLATMEM_ENABLE
436 depends on (PPC64 && !NUMA) || PPC32
438 config ARCH_SPARSEMEM_ENABLE
441 select SPARSEMEM_VMEMMAP_ENABLE
443 config ARCH_SPARSEMEM_DEFAULT
445 depends on (SMP && PPC_PSERIES) || PPC_PS3
447 config SYS_SUPPORTS_HUGETLBFS
452 config ARCH_MEMORY_PROBE
454 depends on MEMORY_HOTPLUG
456 # Some NUMA nodes have memory ranges that span
457 # other nodes. Even though a pfn is valid and
458 # between a node's start and end pfns, it may not
459 # reside on that node. See memmap_init_zone()
461 config NODES_SPAN_OTHER_NODES
463 depends on NEED_MULTIPLE_NODES
465 config PPC_HAS_HASH_64K
471 bool "Using standard binutils settings"
475 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
476 Note, that kernel will be able to run only those applications,
477 which had been compiled using binutils later than 2.17.50.0.3 with
478 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
479 the older binutils, you can patch them with a trivial patch, which
480 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
486 Select the kernel logical page size. Increasing the page size
487 will reduce software overhead at each page boundary, allow
488 hardware prefetch mechanisms to be more effective, and allow
489 larger dma transfers increasing IO efficiency and reducing
490 overhead. However the utilization of memory will increase.
491 For example, each cached file will using a multiple of the
492 page size to hold its contents and the difference between the
493 end of file and the end of page is wasted.
495 Some dedicated systems, such as software raid serving with
496 accelerated calculations, have shown significant increases.
498 If you configure a 64 bit kernel for 64k pages but the
499 processor does not support them, then the kernel will simulate
500 them with 4k pages, loading them on demand, but with the
501 reduced software overhead and larger internal fragmentation.
502 For the 32 bit kernel, a large page option will not be offered
503 unless it is supported by the configured processor.
505 If unsure, choose 4K_PAGES.
511 bool "16k page size" if 44x
514 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
515 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
517 config PPC_256K_PAGES
518 bool "256k page size" if 44x
519 depends on !STDBINUTILS
521 Make the page size 256k.
523 As the ELF standard only requires alignment to support page
524 sizes up to 64k, you will need to compile all of your user
525 space applications with a non-standard binutils settings
526 (see the STDBINUTILS description for details).
528 Say N unless you know what you are doing.
532 config FORCE_MAX_ZONEORDER
533 int "Maximum zone order"
534 range 9 64 if PPC64 && PPC_64K_PAGES
535 default "9" if PPC64 && PPC_64K_PAGES
536 range 13 64 if PPC64 && !PPC_64K_PAGES
537 default "13" if PPC64 && !PPC_64K_PAGES
538 range 9 64 if PPC32 && PPC_16K_PAGES
539 default "9" if PPC32 && PPC_16K_PAGES
540 range 7 64 if PPC32 && PPC_64K_PAGES
541 default "7" if PPC32 && PPC_64K_PAGES
542 range 5 64 if PPC32 && PPC_256K_PAGES
543 default "5" if PPC32 && PPC_256K_PAGES
547 The kernel memory allocator divides physically contiguous memory
548 blocks into "zones", where each zone is a power of two number of
549 pages. This option selects the largest power of two that the kernel
550 keeps in the memory allocator. If you need to allocate very large
551 blocks of physically contiguous memory, then you may need to
554 This config option is actually maximum order plus one. For example,
555 a value of 11 means that the largest free memory block is 2^10 pages.
557 The page size is not necessarily 4KB. For example, on 64-bit
558 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
559 this in mind when choosing a value for this option.
561 config PPC_SUBPAGE_PROT
562 bool "Support setting protections for 4k subpages"
563 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
565 This option adds support for a system call to allow user programs
566 to set access permissions (read/write, readonly, or no access)
567 on the 4k subpages of each 64k page.
570 bool "SMT (Hyperthreading) scheduler support"
571 depends on PPC64 && SMP
573 SMT scheduler support improves the CPU scheduler's decision making
574 when dealing with POWER5 cpus at a cost of slightly increased
575 overhead in some places. If unsure say N here.
577 config PPC_DENORMALISATION
578 bool "PowerPC denormalisation exception handling"
579 depends on PPC_BOOK3S_64
582 Add support for handling denormalisation of single precision
583 values. Useful for bare metal only. If unsure say Y here.
586 bool "Default bootloader kernel arguments"
589 string "Initial kernel command string"
590 depends on CMDLINE_BOOL
591 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
593 On some platforms, there is currently no way for the boot loader to
594 pass arguments to the kernel. For these platforms, you can supply
595 some command-line options at build time by entering them here. In
596 most cases you will need to specify the root device here.
599 string "Additional default image types"
601 List additional targets to be built by the bootwrapper here (separated
602 by spaces). This is useful for targets that depend of device tree
603 files in the .dts directory.
605 Targets in this list will be build as part of the default build
606 target, or when the user does a 'make zImage' or a
607 'make zImage.initrd'.
609 If unsure, leave blank
611 config ARCH_WANTS_FREEZER_CONTROL
615 source kernel/power/Kconfig
618 bool "Enable seccomp to safely compute untrusted bytecode"
622 This kernel feature is useful for number crunching applications
623 that may need to compute untrusted bytecode during their
624 execution. By using pipes or other transports made available to
625 the process as file descriptors supporting the read/write
626 syscalls, it's possible to isolate those applications in
627 their own address space using seccomp. Once seccomp is
628 enabled via /proc/<pid>/seccomp, it cannot be disabled
629 and the task is only allowed to execute a few safe syscalls
630 defined by each seccomp mode.
632 If unsure, say Y. Only embedded should say N here.
643 bool "Support for ISA-bus hardware"
647 Find out whether you have ISA slots on your motherboard. ISA is the
648 name of a bus system, i.e. the way the CPU talks to the other stuff
649 inside your box. If you have an Apple machine, say N here; if you
650 have an IBM RS/6000 or pSeries machine, say Y. If you have an
651 embedded board, consult your board documentation.
657 config NEED_DMA_MAP_STATE
658 def_bool (PPC64 || NOT_COHERENT_CACHE)
660 config NEED_SG_DMA_LENGTH
663 config GENERIC_ISA_DMA
665 depends on ISA_DMA_API
668 config PPC_INDIRECT_PCI
671 default y if 40x || 44x
682 select HAVE_CAN_FLEXCAN if NET && CAN
686 select PPC_INDIRECT_PCI
692 depends on SUSPEND && (PPC_85xx || PPC_86xx)
694 Freescale MPC85xx/MPC86xx power management controller support
695 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
700 depends on SUSPEND && (44x || 40x)
702 PPC4xx Clock Power Management (CPM) support (suspend/resume).
703 It also enables support for two different idle states (idle-wait
710 bool "Freescale Local Bus support"
713 Enables reporting of errors from the Freescale local bus
714 controller. Also contains some common code used by
715 drivers for specific local bus peripherals.
723 depends on PPC_83xx || QUICC_ENGINE || CPM2
725 Freescale General-purpose Timers support
727 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
731 # Platforms that what PCI turned unconditionally just do select PCI
732 # in their config node. Platforms that want to choose at config
733 # time should select PPC_PCI_CHOICE
734 config PPC_PCI_CHOICE
738 bool "PCI support" if PPC_PCI_CHOICE
739 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
740 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
741 default PCI_QSPAN if !4xx && !CPM2 && 8xx
742 select ARCH_SUPPORTS_MSI
743 select GENERIC_PCI_IOMAP
745 Find out whether your system includes a PCI bus. PCI is the name of
746 a bus system, i.e. the way the CPU talks to the other stuff inside
747 your box. If you say Y here, the kernel will include drivers and
748 infrastructure code to support PCI bus devices.
758 depends on !4xx && !CPM2 && 8xx
761 Say Y here if you have a system based on a Motorola 8xx-series
762 embedded processor with a QSPAN PCI interface, otherwise say N.
766 depends on PCI && 8260
767 select PPC_INDIRECT_PCI
770 source "drivers/pci/pcie/Kconfig"
772 source "drivers/pci/Kconfig"
774 source "drivers/pcmcia/Kconfig"
776 source "drivers/pci/hotplug/Kconfig"
783 bool "RapidIO support"
784 depends on HAS_RAPIDIO || PCI
786 If you say Y here, the kernel will include drivers and
787 infrastructure code to support RapidIO interconnect devices.
790 bool "Freescale Embedded SRIO Controller support"
791 depends on RAPIDIO && HAS_RAPIDIO
794 Include support for RapidIO controller on Freescale embedded
795 processors (MPC8548, MPC8641, etc).
797 source "drivers/rapidio/Kconfig"
801 config NONSTATIC_KERNEL
805 menu "Advanced setup"
808 config ADVANCED_OPTIONS
809 bool "Prompt for advanced kernel configuration options"
811 This option will enable prompting for a variety of advanced kernel
812 configuration options. These options can cause the kernel to not
813 work if they are set incorrectly, but can be used to optimize certain
814 aspects of kernel memory management.
816 Unless you know what you are doing, say N here.
818 comment "Default settings for advanced configuration options are used"
819 depends on !ADVANCED_OPTIONS
821 config LOWMEM_SIZE_BOOL
822 bool "Set maximum low memory"
823 depends on ADVANCED_OPTIONS
825 This option allows you to set the maximum amount of memory which
826 will be used as "low memory", that is, memory which the kernel can
827 access directly, without having to set up a kernel virtual mapping.
828 This can be useful in optimizing the layout of kernel virtual
831 Say N here unless you know what you are doing.
834 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
837 config LOWMEM_CAM_NUM_BOOL
838 bool "Set number of CAMs to use to map low memory"
839 depends on ADVANCED_OPTIONS && FSL_BOOKE
841 This option allows you to set the maximum number of CAM slots that
842 will be used to map low memory. There are a limited number of slots
843 available and even more limited number that will fit in the L1 MMU.
844 However, using more entries will allow mapping more low memory. This
845 can be useful in optimizing the layout of kernel virtual memory.
847 Say N here unless you know what you are doing.
849 config LOWMEM_CAM_NUM
851 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
854 config DYNAMIC_MEMSTART
855 bool "Enable page aligned dynamic load address for kernel"
856 depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
857 select NONSTATIC_KERNEL
859 This option enables the kernel to be loaded at any page aligned
860 physical address. The kernel creates a mapping from KERNELBASE to
861 the address where the kernel is loaded. The page size here implies
862 the TLB page size of the mapping for kernel on the particular platform.
863 Please refer to the init code for finding the TLB page size.
865 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
866 kernel image, where the only restriction is the page aligned kernel
867 load address. When this option is enabled, the compile time physical
868 address CONFIG_PHYSICAL_START is ignored.
870 This option is overridden by CONFIG_RELOCATABLE
873 bool "Build a relocatable kernel"
874 depends on ADVANCED_OPTIONS && FLATMEM && 44x
875 select NONSTATIC_KERNEL
877 This builds a kernel image that is capable of running at the
878 location the kernel is loaded at, without any alignment restrictions.
879 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
881 One use is for the kexec on panic case where the recovery kernel
882 must live at a different physical address than the primary
885 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
886 it has been loaded at and the compile time physical addresses
887 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
888 setting can still be useful to bootwrappers that need to know the
889 load address of the kernel (eg. u-boot/mkimage).
891 config RELOCATABLE_PPC32
893 depends on PPC32 && RELOCATABLE
895 config PAGE_OFFSET_BOOL
896 bool "Set custom page offset address"
897 depends on ADVANCED_OPTIONS
899 This option allows you to set the kernel virtual address at which
900 the kernel will map low memory. This can be useful in optimizing
901 the virtual memory layout of the system.
903 Say N here unless you know what you are doing.
906 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
909 config KERNEL_START_BOOL
910 bool "Set custom kernel base address"
911 depends on ADVANCED_OPTIONS
913 This option allows you to set the kernel virtual address at which
914 the kernel will be loaded. Normally this should match PAGE_OFFSET
915 however there are times (like kdump) that one might not want them
918 Say N here unless you know what you are doing.
921 hex "Virtual address of kernel base" if KERNEL_START_BOOL
922 default PAGE_OFFSET if PAGE_OFFSET_BOOL
923 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
926 config PHYSICAL_START_BOOL
927 bool "Set physical address where the kernel is loaded"
928 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
930 This gives the physical address where the kernel is loaded.
932 Say N here unless you know what you are doing.
934 config PHYSICAL_START
935 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
936 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
939 config PHYSICAL_ALIGN
941 default "0x04000000" if FSL_BOOKE
943 This value puts the alignment restrictions on physical address
944 where kernel is loaded and run from. Kernel is compiled for an
945 address which meets above alignment restriction.
947 config TASK_SIZE_BOOL
948 bool "Set custom user task size"
949 depends on ADVANCED_OPTIONS
951 This option allows you to set the amount of virtual address space
952 allocated to user tasks. This can be useful in optimizing the
953 virtual memory layout of the system.
955 Say N here unless you know what you are doing.
958 hex "Size of user task space" if TASK_SIZE_BOOL
959 default "0x80000000" if PPC_8xx
962 config CONSISTENT_SIZE_BOOL
963 bool "Set custom consistent memory pool size"
964 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
966 This option allows you to set the size of the
967 consistent memory pool. This pool of virtual memory
968 is used to make consistent memory allocations.
970 config CONSISTENT_SIZE
971 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
972 default "0x00200000" if NOT_COHERENT_CACHE
975 bool "Pinned Kernel TLBs (860 ONLY)"
976 depends on ADVANCED_OPTIONS && 8xx
981 bool "Build a relocatable kernel"
982 select NONSTATIC_KERNEL
984 This builds a kernel image that is capable of running anywhere
985 in the RMA (real memory area) at any 16k-aligned base address.
986 The kernel is linked as a position-independent executable (PIE)
987 and contains dynamic relocations which are processed early
988 in the bootup process.
990 One use is for the kexec on panic case where the recovery kernel
991 must live at a different physical address than the primary
996 default "0xc000000000000000"
999 default "0xc000000000000000"
1000 config PHYSICAL_START
1002 default "0x00000000"
1005 source "net/Kconfig"
1007 source "drivers/Kconfig"
1011 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1013 source "lib/Kconfig"
1015 source "arch/powerpc/Kconfig.debug"
1017 source "security/Kconfig"
1021 depends on COMPAT && KEYS
1024 source "crypto/Kconfig"
1031 config PPC_LIB_RHEAP
1034 source "arch/powerpc/kvm/Kconfig"