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 select ARCH_MIGHT_HAVE_PC_PARPORT
91 select OF_EARLY_FLATTREE
92 select HAVE_FTRACE_MCOUNT_RECORD
93 select HAVE_DYNAMIC_FTRACE
94 select HAVE_FUNCTION_TRACER
95 select HAVE_FUNCTION_GRAPH_TRACER
96 select SYSCTL_EXCEPTION_TRACE
97 select ARCH_WANT_OPTIONAL_GPIOLIB
98 select VIRT_TO_BUS if !PPC64
100 select HAVE_IOREMAP_PROT
101 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
103 select HAVE_ARCH_KGDB
104 select HAVE_KRETPROBES
105 select HAVE_ARCH_TRACEHOOK
107 select HAVE_MEMBLOCK_NODE_MAP
108 select HAVE_DMA_ATTRS
109 select HAVE_DMA_API_DEBUG
110 select USE_GENERIC_SMP_HELPERS if SMP
112 select HAVE_DEBUG_KMEMLEAK
113 select GENERIC_ATOMIC64 if PPC32
114 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
115 select HAVE_PERF_EVENTS
116 select HAVE_REGS_AND_STACK_ACCESS_API
117 select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
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
141 select HAVE_DEBUG_STACKOVERFLOW
142 select HAVE_IRQ_EXIT_ON_IRQ_STACK
145 def_bool CPU_LITTLE_ENDIAN
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 || PPC_MPC832x || BOOKE
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 This is also useful to emulate missing (optional) instructions
316 such as fsqrt on cores that do have an FPU but do not implement
317 them (such as Freescale BookE).
320 prompt "Math emulation options"
321 default MATH_EMULATION_FULL
322 depends on MATH_EMULATION
324 config MATH_EMULATION_FULL
325 bool "Emulate all the floating point instructions"
327 Select this option will enable the kernel to support to emulate
328 all the floating point instructions. If your SoC doesn't have
329 a FPU, you should select this.
331 config MATH_EMULATION_HW_UNIMPLEMENTED
332 bool "Just emulate the FPU unimplemented instructions"
334 Select this if you know there does have a hardware FPU on your
335 SoC, but some floating point instructions are not implemented by that.
339 config PPC_TRANSACTIONAL_MEM
340 bool "Transactional Memory support for POWERPC"
341 depends on PPC_BOOK3S_64
345 Support user-mode Transactional Memory on POWERPC.
351 bool "SWIOTLB support"
355 Support for IO bounce buffering for systems without an IOMMU.
356 This allows us to DMA to the full physical address space on
357 platforms where the size of a physical address is larger
358 than the bus address. Not all platforms support this.
361 bool "Support for enabling/disabling CPUs"
362 depends on SMP && (PPC_PSERIES || \
363 PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
365 Say Y here to be able to disable and re-enable individual
366 CPUs at runtime on SMP machines.
368 Say N if you are unsure.
370 config ARCH_CPU_PROBE_RELEASE
372 depends on HOTPLUG_CPU
374 config ARCH_ENABLE_MEMORY_HOTPLUG
377 config ARCH_HAS_WALK_MEMORY
380 config ARCH_ENABLE_MEMORY_HOTREMOVE
384 bool "kexec system call"
385 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
387 kexec is a system call that implements the ability to shutdown your
388 current kernel, and to start another kernel. It is like a reboot
389 but it is independent of the system firmware. And like a reboot
390 you can start any kernel with it, not just Linux.
392 The name comes from the similarity to the exec system call.
394 It is an ongoing process to be certain the hardware in a machine
395 is properly shutdown, so do not be surprised if this code does not
396 initially work for you. As of this writing the exact hardware
397 interface is strongly in flux, so no good recommendation can be
401 bool "Build a kdump crash kernel"
402 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
403 select RELOCATABLE if PPC64 || 44x
404 select DYNAMIC_MEMSTART if FSL_BOOKE
406 Build a kernel suitable for use as a kdump capture kernel.
407 The same kernel binary can be used as production kernel and dump
411 bool "Firmware-assisted dump"
412 depends on PPC64 && PPC_RTAS && CRASH_DUMP
414 A robust mechanism to get reliable kernel crash dump with
415 assistance from firmware. This approach does not use kexec,
416 instead firmware assists in booting the kdump kernel
417 while preserving memory contents. Firmware-assisted dump
418 is meant to be a kdump replacement offering robustness and
419 speed not possible without system firmware assistance.
424 bool "Distribute interrupts on all CPUs by default"
425 depends on SMP && !MV64360
427 This option gives the kernel permission to distribute IRQs across
428 multiple CPUs. Saying N here will route all IRQs to the first
429 CPU. Generally saying Y is safe, although some problems have been
430 reported with SMP Power Macintoshes with this option enabled.
435 default y if SMP && PPC_PSERIES
441 depends on NEED_MULTIPLE_NODES
443 config ARCH_SELECT_MEMORY_MODEL
447 config ARCH_FLATMEM_ENABLE
449 depends on (PPC64 && !NUMA) || PPC32
451 config ARCH_SPARSEMEM_ENABLE
454 select SPARSEMEM_VMEMMAP_ENABLE
456 config ARCH_SPARSEMEM_DEFAULT
458 depends on (SMP && PPC_PSERIES) || PPC_PS3
460 config SYS_SUPPORTS_HUGETLBFS
465 config ARCH_MEMORY_PROBE
467 depends on MEMORY_HOTPLUG
469 # Some NUMA nodes have memory ranges that span
470 # other nodes. Even though a pfn is valid and
471 # between a node's start and end pfns, it may not
472 # reside on that node. See memmap_init_zone()
474 config NODES_SPAN_OTHER_NODES
476 depends on NEED_MULTIPLE_NODES
478 config PPC_HAS_HASH_64K
484 bool "Using standard binutils settings"
488 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
489 Note, that kernel will be able to run only those applications,
490 which had been compiled using binutils later than 2.17.50.0.3 with
491 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
492 the older binutils, you can patch them with a trivial patch, which
493 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
499 Select the kernel logical page size. Increasing the page size
500 will reduce software overhead at each page boundary, allow
501 hardware prefetch mechanisms to be more effective, and allow
502 larger dma transfers increasing IO efficiency and reducing
503 overhead. However the utilization of memory will increase.
504 For example, each cached file will using a multiple of the
505 page size to hold its contents and the difference between the
506 end of file and the end of page is wasted.
508 Some dedicated systems, such as software raid serving with
509 accelerated calculations, have shown significant increases.
511 If you configure a 64 bit kernel for 64k pages but the
512 processor does not support them, then the kernel will simulate
513 them with 4k pages, loading them on demand, but with the
514 reduced software overhead and larger internal fragmentation.
515 For the 32 bit kernel, a large page option will not be offered
516 unless it is supported by the configured processor.
518 If unsure, choose 4K_PAGES.
524 bool "16k page size" if 44x
527 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
528 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
530 config PPC_256K_PAGES
531 bool "256k page size" if 44x
532 depends on !STDBINUTILS
534 Make the page size 256k.
536 As the ELF standard only requires alignment to support page
537 sizes up to 64k, you will need to compile all of your user
538 space applications with a non-standard binutils settings
539 (see the STDBINUTILS description for details).
541 Say N unless you know what you are doing.
545 config FORCE_MAX_ZONEORDER
546 int "Maximum zone order"
547 range 9 64 if PPC64 && PPC_64K_PAGES
548 default "9" if PPC64 && PPC_64K_PAGES
549 range 13 64 if PPC64 && !PPC_64K_PAGES
550 default "13" if PPC64 && !PPC_64K_PAGES
551 range 9 64 if PPC32 && PPC_16K_PAGES
552 default "9" if PPC32 && PPC_16K_PAGES
553 range 7 64 if PPC32 && PPC_64K_PAGES
554 default "7" if PPC32 && PPC_64K_PAGES
555 range 5 64 if PPC32 && PPC_256K_PAGES
556 default "5" if PPC32 && PPC_256K_PAGES
560 The kernel memory allocator divides physically contiguous memory
561 blocks into "zones", where each zone is a power of two number of
562 pages. This option selects the largest power of two that the kernel
563 keeps in the memory allocator. If you need to allocate very large
564 blocks of physically contiguous memory, then you may need to
567 This config option is actually maximum order plus one. For example,
568 a value of 11 means that the largest free memory block is 2^10 pages.
570 The page size is not necessarily 4KB. For example, on 64-bit
571 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
572 this in mind when choosing a value for this option.
574 config PPC_SUBPAGE_PROT
575 bool "Support setting protections for 4k subpages"
576 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
578 This option adds support for a system call to allow user programs
579 to set access permissions (read/write, readonly, or no access)
580 on the 4k subpages of each 64k page.
583 bool "SMT (Hyperthreading) scheduler support"
584 depends on PPC64 && SMP
586 SMT scheduler support improves the CPU scheduler's decision making
587 when dealing with POWER5 cpus at a cost of slightly increased
588 overhead in some places. If unsure say N here.
590 config PPC_DENORMALISATION
591 bool "PowerPC denormalisation exception handling"
592 depends on PPC_BOOK3S_64
593 default "y" if PPC_POWERNV
595 Add support for handling denormalisation of single precision
596 values. Useful for bare metal only. If unsure say Y here.
599 bool "Default bootloader kernel arguments"
602 string "Initial kernel command string"
603 depends on CMDLINE_BOOL
604 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
606 On some platforms, there is currently no way for the boot loader to
607 pass arguments to the kernel. For these platforms, you can supply
608 some command-line options at build time by entering them here. In
609 most cases you will need to specify the root device here.
612 string "Additional default image types"
614 List additional targets to be built by the bootwrapper here (separated
615 by spaces). This is useful for targets that depend of device tree
616 files in the .dts directory.
618 Targets in this list will be build as part of the default build
619 target, or when the user does a 'make zImage' or a
620 'make zImage.initrd'.
622 If unsure, leave blank
624 config ARCH_WANTS_FREEZER_CONTROL
628 source kernel/power/Kconfig
631 bool "Enable seccomp to safely compute untrusted bytecode"
635 This kernel feature is useful for number crunching applications
636 that may need to compute untrusted bytecode during their
637 execution. By using pipes or other transports made available to
638 the process as file descriptors supporting the read/write
639 syscalls, it's possible to isolate those applications in
640 their own address space using seccomp. Once seccomp is
641 enabled via /proc/<pid>/seccomp, it cannot be disabled
642 and the task is only allowed to execute a few safe syscalls
643 defined by each seccomp mode.
645 If unsure, say Y. Only embedded should say N here.
656 bool "Support for ISA-bus hardware"
660 Find out whether you have ISA slots on your motherboard. ISA is the
661 name of a bus system, i.e. the way the CPU talks to the other stuff
662 inside your box. If you have an Apple machine, say N here; if you
663 have an IBM RS/6000 or pSeries machine, say Y. If you have an
664 embedded board, consult your board documentation.
670 config NEED_DMA_MAP_STATE
671 def_bool (PPC64 || NOT_COHERENT_CACHE)
673 config NEED_SG_DMA_LENGTH
676 config GENERIC_ISA_DMA
678 depends on ISA_DMA_API
681 config PPC_INDIRECT_PCI
684 default y if 40x || 44x
698 select PPC_INDIRECT_PCI
704 depends on SUSPEND && (PPC_85xx || PPC_86xx)
706 Freescale MPC85xx/MPC86xx power management controller support
707 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
712 depends on SUSPEND && (44x || 40x)
714 PPC4xx Clock Power Management (CPM) support (suspend/resume).
715 It also enables support for two different idle states (idle-wait
722 bool "Freescale Local Bus support"
725 Enables reporting of errors from the Freescale local bus
726 controller. Also contains some common code used by
727 drivers for specific local bus peripherals.
735 depends on PPC_83xx || QUICC_ENGINE || CPM2
737 Freescale General-purpose Timers support
739 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
743 # Platforms that what PCI turned unconditionally just do select PCI
744 # in their config node. Platforms that want to choose at config
745 # time should select PPC_PCI_CHOICE
746 config PPC_PCI_CHOICE
750 bool "PCI support" if PPC_PCI_CHOICE
751 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
752 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
753 default PCI_QSPAN if !4xx && !CPM2 && 8xx
754 select GENERIC_PCI_IOMAP
756 Find out whether your system includes a PCI bus. PCI is the name of
757 a bus system, i.e. the way the CPU talks to the other stuff inside
758 your box. If you say Y here, the kernel will include drivers and
759 infrastructure code to support PCI bus devices.
769 depends on !4xx && !CPM2 && 8xx
772 Say Y here if you have a system based on a Motorola 8xx-series
773 embedded processor with a QSPAN PCI interface, otherwise say N.
777 depends on PCI && 8260
778 select PPC_INDIRECT_PCI
781 source "drivers/pci/pcie/Kconfig"
783 source "drivers/pci/Kconfig"
785 source "drivers/pcmcia/Kconfig"
787 source "drivers/pci/hotplug/Kconfig"
794 bool "RapidIO support"
795 depends on HAS_RAPIDIO || PCI
797 If you say Y here, the kernel will include drivers and
798 infrastructure code to support RapidIO interconnect devices.
801 bool "Freescale Embedded SRIO Controller support"
802 depends on RAPIDIO && HAS_RAPIDIO
805 Include support for RapidIO controller on Freescale embedded
806 processors (MPC8548, MPC8641, etc).
808 source "drivers/rapidio/Kconfig"
812 config NONSTATIC_KERNEL
816 menu "Advanced setup"
819 config ADVANCED_OPTIONS
820 bool "Prompt for advanced kernel configuration options"
822 This option will enable prompting for a variety of advanced kernel
823 configuration options. These options can cause the kernel to not
824 work if they are set incorrectly, but can be used to optimize certain
825 aspects of kernel memory management.
827 Unless you know what you are doing, say N here.
829 comment "Default settings for advanced configuration options are used"
830 depends on !ADVANCED_OPTIONS
832 config LOWMEM_SIZE_BOOL
833 bool "Set maximum low memory"
834 depends on ADVANCED_OPTIONS
836 This option allows you to set the maximum amount of memory which
837 will be used as "low memory", that is, memory which the kernel can
838 access directly, without having to set up a kernel virtual mapping.
839 This can be useful in optimizing the layout of kernel virtual
842 Say N here unless you know what you are doing.
845 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
848 config LOWMEM_CAM_NUM_BOOL
849 bool "Set number of CAMs to use to map low memory"
850 depends on ADVANCED_OPTIONS && FSL_BOOKE
852 This option allows you to set the maximum number of CAM slots that
853 will be used to map low memory. There are a limited number of slots
854 available and even more limited number that will fit in the L1 MMU.
855 However, using more entries will allow mapping more low memory. This
856 can be useful in optimizing the layout of kernel virtual memory.
858 Say N here unless you know what you are doing.
860 config LOWMEM_CAM_NUM
862 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
865 config DYNAMIC_MEMSTART
866 bool "Enable page aligned dynamic load address for kernel"
867 depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
868 select NONSTATIC_KERNEL
870 This option enables the kernel to be loaded at any page aligned
871 physical address. The kernel creates a mapping from KERNELBASE to
872 the address where the kernel is loaded. The page size here implies
873 the TLB page size of the mapping for kernel on the particular platform.
874 Please refer to the init code for finding the TLB page size.
876 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
877 kernel image, where the only restriction is the page aligned kernel
878 load address. When this option is enabled, the compile time physical
879 address CONFIG_PHYSICAL_START is ignored.
881 This option is overridden by CONFIG_RELOCATABLE
884 bool "Build a relocatable kernel"
885 depends on ADVANCED_OPTIONS && FLATMEM && 44x
886 select NONSTATIC_KERNEL
888 This builds a kernel image that is capable of running at the
889 location the kernel is loaded at, without any alignment restrictions.
890 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
892 One use is for the kexec on panic case where the recovery kernel
893 must live at a different physical address than the primary
896 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
897 it has been loaded at and the compile time physical addresses
898 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
899 setting can still be useful to bootwrappers that need to know the
900 load address of the kernel (eg. u-boot/mkimage).
902 config RELOCATABLE_PPC32
904 depends on PPC32 && RELOCATABLE
906 config PAGE_OFFSET_BOOL
907 bool "Set custom page offset address"
908 depends on ADVANCED_OPTIONS
910 This option allows you to set the kernel virtual address at which
911 the kernel will map low memory. This can be useful in optimizing
912 the virtual memory layout of the system.
914 Say N here unless you know what you are doing.
917 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
920 config KERNEL_START_BOOL
921 bool "Set custom kernel base address"
922 depends on ADVANCED_OPTIONS
924 This option allows you to set the kernel virtual address at which
925 the kernel will be loaded. Normally this should match PAGE_OFFSET
926 however there are times (like kdump) that one might not want them
929 Say N here unless you know what you are doing.
932 hex "Virtual address of kernel base" if KERNEL_START_BOOL
933 default PAGE_OFFSET if PAGE_OFFSET_BOOL
934 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
937 config PHYSICAL_START_BOOL
938 bool "Set physical address where the kernel is loaded"
939 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
941 This gives the physical address where the kernel is loaded.
943 Say N here unless you know what you are doing.
945 config PHYSICAL_START
946 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
947 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
950 config PHYSICAL_ALIGN
952 default "0x04000000" if FSL_BOOKE
954 This value puts the alignment restrictions on physical address
955 where kernel is loaded and run from. Kernel is compiled for an
956 address which meets above alignment restriction.
958 config TASK_SIZE_BOOL
959 bool "Set custom user task size"
960 depends on ADVANCED_OPTIONS
962 This option allows you to set the amount of virtual address space
963 allocated to user tasks. This can be useful in optimizing the
964 virtual memory layout of the system.
966 Say N here unless you know what you are doing.
969 hex "Size of user task space" if TASK_SIZE_BOOL
970 default "0x80000000" if PPC_8xx
973 config CONSISTENT_SIZE_BOOL
974 bool "Set custom consistent memory pool size"
975 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
977 This option allows you to set the size of the
978 consistent memory pool. This pool of virtual memory
979 is used to make consistent memory allocations.
981 config CONSISTENT_SIZE
982 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
983 default "0x00200000" if NOT_COHERENT_CACHE
986 bool "Pinned Kernel TLBs (860 ONLY)"
987 depends on ADVANCED_OPTIONS && 8xx
992 bool "Build a relocatable kernel"
993 select NONSTATIC_KERNEL
995 This builds a kernel image that is capable of running anywhere
996 in the RMA (real memory area) at any 16k-aligned base address.
997 The kernel is linked as a position-independent executable (PIE)
998 and contains dynamic relocations which are processed early
999 in the bootup process.
1001 One use is for the kexec on panic case where the recovery kernel
1002 must live at a different physical address than the primary
1005 # This value must have zeroes in the bottom 60 bits otherwise lots will break
1008 default "0xc000000000000000"
1011 default "0xc000000000000000"
1012 config PHYSICAL_START
1014 default "0x00000000"
1020 source "net/Kconfig"
1022 source "drivers/Kconfig"
1026 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1028 source "lib/Kconfig"
1030 source "arch/powerpc/Kconfig.debug"
1032 source "security/Kconfig"
1036 depends on COMPAT && KEYS
1039 source "crypto/Kconfig"
1046 config PPC_LIB_RHEAP
1049 source "arch/powerpc/kvm/Kconfig"