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
90 select OF_EARLY_FLATTREE
91 select HAVE_FTRACE_MCOUNT_RECORD
92 select HAVE_DYNAMIC_FTRACE
93 select HAVE_FUNCTION_TRACER
94 select HAVE_FUNCTION_GRAPH_TRACER
95 select SYSCTL_EXCEPTION_TRACE
96 select ARCH_WANT_OPTIONAL_GPIOLIB
97 select VIRT_TO_BUS if !PPC64
99 select HAVE_IOREMAP_PROT
100 select HAVE_EFFICIENT_UNALIGNED_ACCESS
102 select HAVE_ARCH_KGDB
103 select HAVE_KRETPROBES
104 select HAVE_ARCH_TRACEHOOK
106 select HAVE_MEMBLOCK_NODE_MAP
107 select HAVE_DMA_ATTRS
108 select HAVE_DMA_API_DEBUG
109 select USE_GENERIC_SMP_HELPERS if SMP
111 select HAVE_DEBUG_KMEMLEAK
112 select GENERIC_ATOMIC64 if PPC32
113 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
114 select HAVE_PERF_EVENTS
115 select HAVE_REGS_AND_STACK_ACCESS_API
116 select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
117 select HAVE_GENERIC_HARDIRQS
118 select ARCH_WANT_IPC_PARSE_VERSION
121 select GENERIC_IRQ_SHOW
122 select GENERIC_IRQ_SHOW_LEVEL
123 select IRQ_FORCED_THREADING
124 select HAVE_RCU_TABLE_FREE if SMP
125 select HAVE_SYSCALL_TRACEPOINTS
126 select HAVE_BPF_JIT if PPC64
127 select HAVE_ARCH_JUMP_LABEL
128 select ARCH_HAVE_NMI_SAFE_CMPXCHG
129 select GENERIC_SMP_IDLE_THREAD
130 select GENERIC_CMOS_UPDATE
131 select GENERIC_TIME_VSYSCALL_OLD
132 select GENERIC_CLOCKEVENTS
133 select GENERIC_STRNCPY_FROM_USER
134 select GENERIC_STRNLEN_USER
135 select HAVE_MOD_ARCH_SPECIFIC
136 select MODULES_USE_ELF_RELA
137 select CLONE_BACKWARDS
138 select ARCH_USE_BUILTIN_BSWAP
139 select OLD_SIGSUSPEND
140 select OLD_SIGACTION if PPC32
149 select COMPAT_BINFMT_ELF
150 select ARCH_WANT_OLD_COMPAT_IPC
151 select COMPAT_OLD_SIGACTION
153 config SYSVIPC_COMPAT
155 depends on COMPAT && SYSVIPC
158 # All PPC32s use generic nvram driver through ppc_md
163 config SCHED_OMIT_FRAME_POINTER
167 config ARCH_MAY_HAVE_PC_FDC
169 default !PPC_PSERIES || PCI
174 config PPC_UDBG_16550
178 config GENERIC_TBSYNC
180 default y if PPC32 && SMP
192 config SYS_SUPPORTS_APM_EMULATION
193 default y if PMAC_APM_EMU
199 Used to allow a board to specify it wants an ePAPR compliant wrapper.
202 config DEFAULT_UIMAGE
205 Used to allow a board to specify it wants a uImage built by default
211 config ARCH_HIBERNATION_POSSIBLE
215 config ARCH_SUSPEND_POSSIBLE
217 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
218 (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
221 config PPC_DCR_NATIVE
231 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
234 config PPC_OF_PLATFORM_PCI
237 depends on PPC64 # not supported on 32 bits yet
240 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
243 config ARCH_SUPPORTS_UPROBES
246 config PPC_ADV_DEBUG_REGS
248 depends on 40x || BOOKE
251 config PPC_ADV_DEBUG_IACS
253 depends on PPC_ADV_DEBUG_REGS
257 config PPC_ADV_DEBUG_DACS
259 depends on PPC_ADV_DEBUG_REGS
262 config PPC_ADV_DEBUG_DVCS
264 depends on PPC_ADV_DEBUG_REGS
268 config PPC_ADV_DEBUG_DAC_RANGE
270 depends on PPC_ADV_DEBUG_REGS && 44x
273 config PPC_EMULATE_SSTEP
275 default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
277 source "init/Kconfig"
279 source "kernel/Kconfig.freezer"
281 source "arch/powerpc/sysdev/Kconfig"
282 source "arch/powerpc/platforms/Kconfig"
284 menu "Kernel options"
287 bool "High memory support"
290 source kernel/Kconfig.hz
291 source kernel/Kconfig.preempt
292 source "fs/Kconfig.binfmt"
294 config HUGETLB_PAGE_SIZE_VARIABLE
296 depends on HUGETLB_PAGE
299 config MATH_EMULATION
300 bool "Math emulation"
301 depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
303 Some PowerPC chips designed for embedded applications do not have
304 a floating-point unit and therefore do not implement the
305 floating-point instructions in the PowerPC instruction set. If you
306 say Y here, the kernel will include code to emulate a floating-point
307 unit, which will allow programs that use floating-point
310 config PPC_TRANSACTIONAL_MEM
311 bool "Transactional Memory support for POWERPC"
312 depends on PPC_BOOK3S_64
316 Support user-mode Transactional Memory on POWERPC.
318 config 8XX_MINIMAL_FPEMU
319 bool "Minimal math emulation for 8xx"
320 depends on 8xx && !MATH_EMULATION
322 Older arch/ppc kernels still emulated a few floating point
323 instructions such as load and store, even when full math
324 emulation is disabled. Say "Y" here if you want to preserve
327 It is recommended that you build a soft-float userspace instead.
333 bool "SWIOTLB support"
337 Support for IO bounce buffering for systems without an IOMMU.
338 This allows us to DMA to the full physical address space on
339 platforms where the size of a physical address is larger
340 than the bus address. Not all platforms support this.
343 bool "Support for enabling/disabling CPUs"
344 depends on SMP && HOTPLUG && (PPC_PSERIES || \
345 PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
347 Say Y here to be able to disable and re-enable individual
348 CPUs at runtime on SMP machines.
350 Say N if you are unsure.
352 config ARCH_CPU_PROBE_RELEASE
354 depends on HOTPLUG_CPU
356 config ARCH_ENABLE_MEMORY_HOTPLUG
359 config ARCH_HAS_WALK_MEMORY
362 config ARCH_ENABLE_MEMORY_HOTREMOVE
366 bool "kexec system call"
367 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
369 kexec is a system call that implements the ability to shutdown your
370 current kernel, and to start another kernel. It is like a reboot
371 but it is independent of the system firmware. And like a reboot
372 you can start any kernel with it, not just Linux.
374 The name comes from the similarity to the exec system call.
376 It is an ongoing process to be certain the hardware in a machine
377 is properly shutdown, so do not be surprised if this code does not
378 initially work for you. It may help to enable device hotplugging
379 support. As of this writing the exact hardware interface is
380 strongly in flux, so no good recommendation can be made.
383 bool "Build a kdump crash kernel"
384 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
385 select RELOCATABLE if PPC64 || 44x
386 select DYNAMIC_MEMSTART if FSL_BOOKE
388 Build a kernel suitable for use as a kdump capture kernel.
389 The same kernel binary can be used as production kernel and dump
393 bool "Firmware-assisted dump"
394 depends on PPC64 && PPC_RTAS && CRASH_DUMP
396 A robust mechanism to get reliable kernel crash dump with
397 assistance from firmware. This approach does not use kexec,
398 instead firmware assists in booting the kdump kernel
399 while preserving memory contents. Firmware-assisted dump
400 is meant to be a kdump replacement offering robustness and
401 speed not possible without system firmware assistance.
406 bool "Distribute interrupts on all CPUs by default"
407 depends on SMP && !MV64360
409 This option gives the kernel permission to distribute IRQs across
410 multiple CPUs. Saying N here will route all IRQs to the first
411 CPU. Generally saying Y is safe, although some problems have been
412 reported with SMP Power Macintoshes with this option enabled.
417 default y if SMP && PPC_PSERIES
423 depends on NEED_MULTIPLE_NODES
425 config ARCH_SELECT_MEMORY_MODEL
429 config ARCH_FLATMEM_ENABLE
431 depends on (PPC64 && !NUMA) || PPC32
433 config ARCH_SPARSEMEM_ENABLE
436 select SPARSEMEM_VMEMMAP_ENABLE
438 config ARCH_SPARSEMEM_DEFAULT
440 depends on (SMP && PPC_PSERIES) || PPC_PS3
442 config SYS_SUPPORTS_HUGETLBFS
447 config ARCH_MEMORY_PROBE
449 depends on MEMORY_HOTPLUG
451 # Some NUMA nodes have memory ranges that span
452 # other nodes. Even though a pfn is valid and
453 # between a node's start and end pfns, it may not
454 # reside on that node. See memmap_init_zone()
456 config NODES_SPAN_OTHER_NODES
458 depends on NEED_MULTIPLE_NODES
460 config PPC_HAS_HASH_64K
466 bool "Using standard binutils settings"
470 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
471 Note, that kernel will be able to run only those applications,
472 which had been compiled using binutils later than 2.17.50.0.3 with
473 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
474 the older binutils, you can patch them with a trivial patch, which
475 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
481 Select the kernel logical page size. Increasing the page size
482 will reduce software overhead at each page boundary, allow
483 hardware prefetch mechanisms to be more effective, and allow
484 larger dma transfers increasing IO efficiency and reducing
485 overhead. However the utilization of memory will increase.
486 For example, each cached file will using a multiple of the
487 page size to hold its contents and the difference between the
488 end of file and the end of page is wasted.
490 Some dedicated systems, such as software raid serving with
491 accelerated calculations, have shown significant increases.
493 If you configure a 64 bit kernel for 64k pages but the
494 processor does not support them, then the kernel will simulate
495 them with 4k pages, loading them on demand, but with the
496 reduced software overhead and larger internal fragmentation.
497 For the 32 bit kernel, a large page option will not be offered
498 unless it is supported by the configured processor.
500 If unsure, choose 4K_PAGES.
506 bool "16k page size" if 44x
509 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
510 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
512 config PPC_256K_PAGES
513 bool "256k page size" if 44x
514 depends on !STDBINUTILS
516 Make the page size 256k.
518 As the ELF standard only requires alignment to support page
519 sizes up to 64k, you will need to compile all of your user
520 space applications with a non-standard binutils settings
521 (see the STDBINUTILS description for details).
523 Say N unless you know what you are doing.
527 config FORCE_MAX_ZONEORDER
528 int "Maximum zone order"
529 range 9 64 if PPC64 && PPC_64K_PAGES
530 default "9" if PPC64 && PPC_64K_PAGES
531 range 13 64 if PPC64 && !PPC_64K_PAGES
532 default "13" if PPC64 && !PPC_64K_PAGES
533 range 9 64 if PPC32 && PPC_16K_PAGES
534 default "9" if PPC32 && PPC_16K_PAGES
535 range 7 64 if PPC32 && PPC_64K_PAGES
536 default "7" if PPC32 && PPC_64K_PAGES
537 range 5 64 if PPC32 && PPC_256K_PAGES
538 default "5" if PPC32 && PPC_256K_PAGES
542 The kernel memory allocator divides physically contiguous memory
543 blocks into "zones", where each zone is a power of two number of
544 pages. This option selects the largest power of two that the kernel
545 keeps in the memory allocator. If you need to allocate very large
546 blocks of physically contiguous memory, then you may need to
549 This config option is actually maximum order plus one. For example,
550 a value of 11 means that the largest free memory block is 2^10 pages.
552 The page size is not necessarily 4KB. For example, on 64-bit
553 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
554 this in mind when choosing a value for this option.
556 config PPC_SUBPAGE_PROT
557 bool "Support setting protections for 4k subpages"
558 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
560 This option adds support for a system call to allow user programs
561 to set access permissions (read/write, readonly, or no access)
562 on the 4k subpages of each 64k page.
565 bool "SMT (Hyperthreading) scheduler support"
566 depends on PPC64 && SMP
568 SMT scheduler support improves the CPU scheduler's decision making
569 when dealing with POWER5 cpus at a cost of slightly increased
570 overhead in some places. If unsure say N here.
572 config PPC_DENORMALISATION
573 bool "PowerPC denormalisation exception handling"
574 depends on PPC_BOOK3S_64
577 Add support for handling denormalisation of single precision
578 values. Useful for bare metal only. If unsure say Y here.
581 bool "Default bootloader kernel arguments"
584 string "Initial kernel command string"
585 depends on CMDLINE_BOOL
586 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
588 On some platforms, there is currently no way for the boot loader to
589 pass arguments to the kernel. For these platforms, you can supply
590 some command-line options at build time by entering them here. In
591 most cases you will need to specify the root device here.
594 string "Additional default image types"
596 List additional targets to be built by the bootwrapper here (separated
597 by spaces). This is useful for targets that depend of device tree
598 files in the .dts directory.
600 Targets in this list will be build as part of the default build
601 target, or when the user does a 'make zImage' or a
602 'make zImage.initrd'.
604 If unsure, leave blank
606 config ARCH_WANTS_FREEZER_CONTROL
610 source kernel/power/Kconfig
613 bool "Enable seccomp to safely compute untrusted bytecode"
617 This kernel feature is useful for number crunching applications
618 that may need to compute untrusted bytecode during their
619 execution. By using pipes or other transports made available to
620 the process as file descriptors supporting the read/write
621 syscalls, it's possible to isolate those applications in
622 their own address space using seccomp. Once seccomp is
623 enabled via /proc/<pid>/seccomp, it cannot be disabled
624 and the task is only allowed to execute a few safe syscalls
625 defined by each seccomp mode.
627 If unsure, say Y. Only embedded should say N here.
638 bool "Support for ISA-bus hardware"
642 Find out whether you have ISA slots on your motherboard. ISA is the
643 name of a bus system, i.e. the way the CPU talks to the other stuff
644 inside your box. If you have an Apple machine, say N here; if you
645 have an IBM RS/6000 or pSeries machine, say Y. If you have an
646 embedded board, consult your board documentation.
652 config NEED_DMA_MAP_STATE
653 def_bool (PPC64 || NOT_COHERENT_CACHE)
655 config NEED_SG_DMA_LENGTH
658 config GENERIC_ISA_DMA
660 depends on ISA_DMA_API
663 config PPC_INDIRECT_PCI
666 default y if 40x || 44x
677 select HAVE_CAN_FLEXCAN if NET && CAN
681 select PPC_INDIRECT_PCI
687 depends on SUSPEND && (PPC_85xx || PPC_86xx)
689 Freescale MPC85xx/MPC86xx power management controller support
690 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
695 depends on SUSPEND && (44x || 40x)
697 PPC4xx Clock Power Management (CPM) support (suspend/resume).
698 It also enables support for two different idle states (idle-wait
705 bool "Freescale Local Bus support"
708 Enables reporting of errors from the Freescale local bus
709 controller. Also contains some common code used by
710 drivers for specific local bus peripherals.
718 depends on PPC_83xx || QUICC_ENGINE || CPM2
720 Freescale General-purpose Timers support
722 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
726 # Platforms that what PCI turned unconditionally just do select PCI
727 # in their config node. Platforms that want to choose at config
728 # time should select PPC_PCI_CHOICE
729 config PPC_PCI_CHOICE
733 bool "PCI support" if PPC_PCI_CHOICE
734 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
735 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
736 default PCI_QSPAN if !4xx && !CPM2 && 8xx
737 select ARCH_SUPPORTS_MSI
738 select GENERIC_PCI_IOMAP
740 Find out whether your system includes a PCI bus. PCI is the name of
741 a bus system, i.e. the way the CPU talks to the other stuff inside
742 your box. If you say Y here, the kernel will include drivers and
743 infrastructure code to support PCI bus devices.
753 depends on !4xx && !CPM2 && 8xx
756 Say Y here if you have a system based on a Motorola 8xx-series
757 embedded processor with a QSPAN PCI interface, otherwise say N.
761 depends on PCI && 8260
762 select PPC_INDIRECT_PCI
765 source "drivers/pci/pcie/Kconfig"
767 source "drivers/pci/Kconfig"
769 source "drivers/pcmcia/Kconfig"
771 source "drivers/pci/hotplug/Kconfig"
778 bool "RapidIO support"
779 depends on HAS_RAPIDIO || PCI
781 If you say Y here, the kernel will include drivers and
782 infrastructure code to support RapidIO interconnect devices.
785 bool "Freescale Embedded SRIO Controller support"
786 depends on RAPIDIO && HAS_RAPIDIO
789 Include support for RapidIO controller on Freescale embedded
790 processors (MPC8548, MPC8641, etc).
792 source "drivers/rapidio/Kconfig"
796 config NONSTATIC_KERNEL
800 menu "Advanced setup"
803 config ADVANCED_OPTIONS
804 bool "Prompt for advanced kernel configuration options"
806 This option will enable prompting for a variety of advanced kernel
807 configuration options. These options can cause the kernel to not
808 work if they are set incorrectly, but can be used to optimize certain
809 aspects of kernel memory management.
811 Unless you know what you are doing, say N here.
813 comment "Default settings for advanced configuration options are used"
814 depends on !ADVANCED_OPTIONS
816 config LOWMEM_SIZE_BOOL
817 bool "Set maximum low memory"
818 depends on ADVANCED_OPTIONS
820 This option allows you to set the maximum amount of memory which
821 will be used as "low memory", that is, memory which the kernel can
822 access directly, without having to set up a kernel virtual mapping.
823 This can be useful in optimizing the layout of kernel virtual
826 Say N here unless you know what you are doing.
829 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
832 config LOWMEM_CAM_NUM_BOOL
833 bool "Set number of CAMs to use to map low memory"
834 depends on ADVANCED_OPTIONS && FSL_BOOKE
836 This option allows you to set the maximum number of CAM slots that
837 will be used to map low memory. There are a limited number of slots
838 available and even more limited number that will fit in the L1 MMU.
839 However, using more entries will allow mapping more low memory. This
840 can be useful in optimizing the layout of kernel virtual memory.
842 Say N here unless you know what you are doing.
844 config LOWMEM_CAM_NUM
846 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
849 config DYNAMIC_MEMSTART
850 bool "Enable page aligned dynamic load address for kernel"
851 depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
852 select NONSTATIC_KERNEL
854 This option enables the kernel to be loaded at any page aligned
855 physical address. The kernel creates a mapping from KERNELBASE to
856 the address where the kernel is loaded. The page size here implies
857 the TLB page size of the mapping for kernel on the particular platform.
858 Please refer to the init code for finding the TLB page size.
860 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
861 kernel image, where the only restriction is the page aligned kernel
862 load address. When this option is enabled, the compile time physical
863 address CONFIG_PHYSICAL_START is ignored.
865 This option is overridden by CONFIG_RELOCATABLE
868 bool "Build a relocatable kernel"
869 depends on ADVANCED_OPTIONS && FLATMEM && 44x
870 select NONSTATIC_KERNEL
872 This builds a kernel image that is capable of running at the
873 location the kernel is loaded at, without any alignment restrictions.
874 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
876 One use is for the kexec on panic case where the recovery kernel
877 must live at a different physical address than the primary
880 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
881 it has been loaded at and the compile time physical addresses
882 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
883 setting can still be useful to bootwrappers that need to know the
884 load address of the kernel (eg. u-boot/mkimage).
886 config RELOCATABLE_PPC32
888 depends on PPC32 && RELOCATABLE
890 config PAGE_OFFSET_BOOL
891 bool "Set custom page offset address"
892 depends on ADVANCED_OPTIONS
894 This option allows you to set the kernel virtual address at which
895 the kernel will map low memory. This can be useful in optimizing
896 the virtual memory layout of the system.
898 Say N here unless you know what you are doing.
901 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
904 config KERNEL_START_BOOL
905 bool "Set custom kernel base address"
906 depends on ADVANCED_OPTIONS
908 This option allows you to set the kernel virtual address at which
909 the kernel will be loaded. Normally this should match PAGE_OFFSET
910 however there are times (like kdump) that one might not want them
913 Say N here unless you know what you are doing.
916 hex "Virtual address of kernel base" if KERNEL_START_BOOL
917 default PAGE_OFFSET if PAGE_OFFSET_BOOL
918 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
921 config PHYSICAL_START_BOOL
922 bool "Set physical address where the kernel is loaded"
923 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
925 This gives the physical address where the kernel is loaded.
927 Say N here unless you know what you are doing.
929 config PHYSICAL_START
930 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
931 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
934 config PHYSICAL_ALIGN
936 default "0x04000000" if FSL_BOOKE
938 This value puts the alignment restrictions on physical address
939 where kernel is loaded and run from. Kernel is compiled for an
940 address which meets above alignment restriction.
942 config TASK_SIZE_BOOL
943 bool "Set custom user task size"
944 depends on ADVANCED_OPTIONS
946 This option allows you to set the amount of virtual address space
947 allocated to user tasks. This can be useful in optimizing the
948 virtual memory layout of the system.
950 Say N here unless you know what you are doing.
953 hex "Size of user task space" if TASK_SIZE_BOOL
954 default "0x80000000" if PPC_8xx
957 config CONSISTENT_SIZE_BOOL
958 bool "Set custom consistent memory pool size"
959 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
961 This option allows you to set the size of the
962 consistent memory pool. This pool of virtual memory
963 is used to make consistent memory allocations.
965 config CONSISTENT_SIZE
966 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
967 default "0x00200000" if NOT_COHERENT_CACHE
970 bool "Pinned Kernel TLBs (860 ONLY)"
971 depends on ADVANCED_OPTIONS && 8xx
976 bool "Build a relocatable kernel"
977 select NONSTATIC_KERNEL
979 This builds a kernel image that is capable of running anywhere
980 in the RMA (real memory area) at any 16k-aligned base address.
981 The kernel is linked as a position-independent executable (PIE)
982 and contains dynamic relocations which are processed early
983 in the bootup process.
985 One use is for the kexec on panic case where the recovery kernel
986 must live at a different physical address than the primary
991 default "0xc000000000000000"
994 default "0xc000000000000000"
995 config PHYSICAL_START
1000 source "net/Kconfig"
1002 source "drivers/Kconfig"
1006 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1008 source "lib/Kconfig"
1010 source "arch/powerpc/Kconfig.debug"
1012 source "security/Kconfig"
1016 depends on COMPAT && KEYS
1019 source "crypto/Kconfig"
1026 config PPC_LIB_RHEAP
1029 source "arch/powerpc/kvm/Kconfig"