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
89 select ARCH_MIGHT_HAVE_PC_SERIO
92 select OF_EARLY_FLATTREE
93 select HAVE_FTRACE_MCOUNT_RECORD
94 select HAVE_DYNAMIC_FTRACE
95 select HAVE_FUNCTION_TRACER
96 select HAVE_FUNCTION_GRAPH_TRACER
97 select SYSCTL_EXCEPTION_TRACE
98 select ARCH_WANT_OPTIONAL_GPIOLIB
99 select VIRT_TO_BUS if !PPC64
101 select HAVE_IOREMAP_PROT
102 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
104 select HAVE_ARCH_KGDB
105 select HAVE_KRETPROBES
106 select HAVE_ARCH_TRACEHOOK
108 select HAVE_MEMBLOCK_NODE_MAP
109 select HAVE_DMA_ATTRS
110 select HAVE_DMA_API_DEBUG
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
143 select ARCH_USE_CMPXCHG_LOCKREF if PPC64
146 def_bool CPU_LITTLE_ENDIAN
159 select COMPAT_BINFMT_ELF
160 select ARCH_WANT_OLD_COMPAT_IPC
161 select COMPAT_OLD_SIGACTION
163 config SYSVIPC_COMPAT
165 depends on COMPAT && SYSVIPC
168 # All PPC32s use generic nvram driver through ppc_md
173 config SCHED_OMIT_FRAME_POINTER
177 config ARCH_MAY_HAVE_PC_FDC
179 default !PPC_PSERIES || PCI
184 config PPC_UDBG_16550
188 config GENERIC_TBSYNC
190 default y if PPC32 && SMP
202 config SYS_SUPPORTS_APM_EMULATION
203 default y if PMAC_APM_EMU
209 Used to allow a board to specify it wants an ePAPR compliant wrapper.
212 config DEFAULT_UIMAGE
215 Used to allow a board to specify it wants a uImage built by default
218 config ARCH_HIBERNATION_POSSIBLE
222 config ARCH_SUSPEND_POSSIBLE
224 depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
225 (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \
228 config PPC_DCR_NATIVE
238 depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
241 config PPC_OF_PLATFORM_PCI
244 depends on PPC64 # not supported on 32 bits yet
247 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
250 config ARCH_SUPPORTS_UPROBES
253 config PPC_ADV_DEBUG_REGS
255 depends on 40x || BOOKE
258 config PPC_ADV_DEBUG_IACS
260 depends on PPC_ADV_DEBUG_REGS
264 config PPC_ADV_DEBUG_DACS
266 depends on PPC_ADV_DEBUG_REGS
269 config PPC_ADV_DEBUG_DVCS
271 depends on PPC_ADV_DEBUG_REGS
275 config PPC_ADV_DEBUG_DAC_RANGE
277 depends on PPC_ADV_DEBUG_REGS && 44x
280 config PPC_EMULATE_SSTEP
282 default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT
284 source "init/Kconfig"
286 source "kernel/Kconfig.freezer"
288 source "arch/powerpc/sysdev/Kconfig"
289 source "arch/powerpc/platforms/Kconfig"
291 menu "Kernel options"
294 bool "High memory support"
297 source kernel/Kconfig.hz
298 source kernel/Kconfig.preempt
299 source "fs/Kconfig.binfmt"
301 config HUGETLB_PAGE_SIZE_VARIABLE
303 depends on HUGETLB_PAGE
306 config MATH_EMULATION
307 bool "Math emulation"
308 depends on 4xx || 8xx || PPC_MPC832x || BOOKE
310 Some PowerPC chips designed for embedded applications do not have
311 a floating-point unit and therefore do not implement the
312 floating-point instructions in the PowerPC instruction set. If you
313 say Y here, the kernel will include code to emulate a floating-point
314 unit, which will allow programs that use floating-point
317 This is also useful to emulate missing (optional) instructions
318 such as fsqrt on cores that do have an FPU but do not implement
319 them (such as Freescale BookE).
322 prompt "Math emulation options"
323 default MATH_EMULATION_FULL
324 depends on MATH_EMULATION
326 config MATH_EMULATION_FULL
327 bool "Emulate all the floating point instructions"
329 Select this option will enable the kernel to support to emulate
330 all the floating point instructions. If your SoC doesn't have
331 a FPU, you should select this.
333 config MATH_EMULATION_HW_UNIMPLEMENTED
334 bool "Just emulate the FPU unimplemented instructions"
336 Select this if you know there does have a hardware FPU on your
337 SoC, but some floating point instructions are not implemented by that.
341 config PPC_TRANSACTIONAL_MEM
342 bool "Transactional Memory support for POWERPC"
343 depends on PPC_BOOK3S_64
349 Support user-mode Transactional Memory on POWERPC.
355 bool "SWIOTLB support"
359 Support for IO bounce buffering for systems without an IOMMU.
360 This allows us to DMA to the full physical address space on
361 platforms where the size of a physical address is larger
362 than the bus address. Not all platforms support this.
365 bool "Support for enabling/disabling CPUs"
366 depends on SMP && (PPC_PSERIES || \
367 PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
369 Say Y here to be able to disable and re-enable individual
370 CPUs at runtime on SMP machines.
372 Say N if you are unsure.
374 config ARCH_CPU_PROBE_RELEASE
376 depends on HOTPLUG_CPU
378 config ARCH_ENABLE_MEMORY_HOTPLUG
381 config ARCH_HAS_WALK_MEMORY
384 config ARCH_ENABLE_MEMORY_HOTREMOVE
387 config PPC64_SUPPORTS_MEMORY_FAILURE
388 bool "Add support for memory hwpoison"
389 depends on PPC_BOOK3S_64
390 default "y" if PPC_POWERNV
391 select ARCH_SUPPORTS_MEMORY_FAILURE
394 bool "kexec system call"
395 depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
397 kexec is a system call that implements the ability to shutdown your
398 current kernel, and to start another kernel. It is like a reboot
399 but it is independent of the system firmware. And like a reboot
400 you can start any kernel with it, not just Linux.
402 The name comes from the similarity to the exec system call.
404 It is an ongoing process to be certain the hardware in a machine
405 is properly shutdown, so do not be surprised if this code does not
406 initially work for you. As of this writing the exact hardware
407 interface is strongly in flux, so no good recommendation can be
411 bool "Build a kdump crash kernel"
412 depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
413 select RELOCATABLE if PPC64 || 44x || FSL_BOOKE
415 Build a kernel suitable for use as a kdump capture kernel.
416 The same kernel binary can be used as production kernel and dump
420 bool "Firmware-assisted dump"
421 depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
423 A robust mechanism to get reliable kernel crash dump with
424 assistance from firmware. This approach does not use kexec,
425 instead firmware assists in booting the kdump kernel
426 while preserving memory contents. Firmware-assisted dump
427 is meant to be a kdump replacement offering robustness and
428 speed not possible without system firmware assistance.
433 bool "Distribute interrupts on all CPUs by default"
436 This option gives the kernel permission to distribute IRQs across
437 multiple CPUs. Saying N here will route all IRQs to the first
438 CPU. Generally saying Y is safe, although some problems have been
439 reported with SMP Power Macintoshes with this option enabled.
444 default y if SMP && PPC_PSERIES
450 depends on NEED_MULTIPLE_NODES
452 config ARCH_SELECT_MEMORY_MODEL
456 config ARCH_FLATMEM_ENABLE
458 depends on (PPC64 && !NUMA) || PPC32
460 config ARCH_SPARSEMEM_ENABLE
463 select SPARSEMEM_VMEMMAP_ENABLE
465 config ARCH_SPARSEMEM_DEFAULT
467 depends on (SMP && PPC_PSERIES) || PPC_PS3
469 config SYS_SUPPORTS_HUGETLBFS
474 config ARCH_MEMORY_PROBE
476 depends on MEMORY_HOTPLUG
478 # Some NUMA nodes have memory ranges that span
479 # other nodes. Even though a pfn is valid and
480 # between a node's start and end pfns, it may not
481 # reside on that node. See memmap_init_zone()
483 config NODES_SPAN_OTHER_NODES
485 depends on NEED_MULTIPLE_NODES
487 config PPC_HAS_HASH_64K
493 bool "Using standard binutils settings"
497 Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
498 Note, that kernel will be able to run only those applications,
499 which had been compiled using binutils later than 2.17.50.0.3 with
500 '-zmax-page-size' set to 256K (the default is 64K). Or, if using
501 the older binutils, you can patch them with a trivial patch, which
502 changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
508 Select the kernel logical page size. Increasing the page size
509 will reduce software overhead at each page boundary, allow
510 hardware prefetch mechanisms to be more effective, and allow
511 larger dma transfers increasing IO efficiency and reducing
512 overhead. However the utilization of memory will increase.
513 For example, each cached file will using a multiple of the
514 page size to hold its contents and the difference between the
515 end of file and the end of page is wasted.
517 Some dedicated systems, such as software raid serving with
518 accelerated calculations, have shown significant increases.
520 If you configure a 64 bit kernel for 64k pages but the
521 processor does not support them, then the kernel will simulate
522 them with 4k pages, loading them on demand, but with the
523 reduced software overhead and larger internal fragmentation.
524 For the 32 bit kernel, a large page option will not be offered
525 unless it is supported by the configured processor.
527 If unsure, choose 4K_PAGES.
533 bool "16k page size" if 44x
536 bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
537 depends on !PPC_FSL_BOOK3E
538 select PPC_HAS_HASH_64K if PPC_STD_MMU_64
540 config PPC_256K_PAGES
541 bool "256k page size" if 44x
542 depends on !STDBINUTILS
544 Make the page size 256k.
546 As the ELF standard only requires alignment to support page
547 sizes up to 64k, you will need to compile all of your user
548 space applications with a non-standard binutils settings
549 (see the STDBINUTILS description for details).
551 Say N unless you know what you are doing.
555 config FORCE_MAX_ZONEORDER
556 int "Maximum zone order"
557 range 9 64 if PPC64 && PPC_64K_PAGES
558 default "9" if PPC64 && PPC_64K_PAGES
559 range 13 64 if PPC64 && !PPC_64K_PAGES
560 default "13" if PPC64 && !PPC_64K_PAGES
561 range 9 64 if PPC32 && PPC_16K_PAGES
562 default "9" if PPC32 && PPC_16K_PAGES
563 range 7 64 if PPC32 && PPC_64K_PAGES
564 default "7" if PPC32 && PPC_64K_PAGES
565 range 5 64 if PPC32 && PPC_256K_PAGES
566 default "5" if PPC32 && PPC_256K_PAGES
570 The kernel memory allocator divides physically contiguous memory
571 blocks into "zones", where each zone is a power of two number of
572 pages. This option selects the largest power of two that the kernel
573 keeps in the memory allocator. If you need to allocate very large
574 blocks of physically contiguous memory, then you may need to
577 This config option is actually maximum order plus one. For example,
578 a value of 11 means that the largest free memory block is 2^10 pages.
580 The page size is not necessarily 4KB. For example, on 64-bit
581 systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
582 this in mind when choosing a value for this option.
584 config PPC_SUBPAGE_PROT
585 bool "Support setting protections for 4k subpages"
586 depends on PPC_STD_MMU_64 && PPC_64K_PAGES
588 This option adds support for a system call to allow user programs
589 to set access permissions (read/write, readonly, or no access)
590 on the 4k subpages of each 64k page.
593 bool "SMT (Hyperthreading) scheduler support"
594 depends on PPC64 && SMP
596 SMT scheduler support improves the CPU scheduler's decision making
597 when dealing with POWER5 cpus at a cost of slightly increased
598 overhead in some places. If unsure say N here.
600 config PPC_DENORMALISATION
601 bool "PowerPC denormalisation exception handling"
602 depends on PPC_BOOK3S_64
603 default "y" if PPC_POWERNV
605 Add support for handling denormalisation of single precision
606 values. Useful for bare metal only. If unsure say Y here.
609 bool "Default bootloader kernel arguments"
612 string "Initial kernel command string"
613 depends on CMDLINE_BOOL
614 default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
616 On some platforms, there is currently no way for the boot loader to
617 pass arguments to the kernel. For these platforms, you can supply
618 some command-line options at build time by entering them here. In
619 most cases you will need to specify the root device here.
622 string "Additional default image types"
624 List additional targets to be built by the bootwrapper here (separated
625 by spaces). This is useful for targets that depend of device tree
626 files in the .dts directory.
628 Targets in this list will be build as part of the default build
629 target, or when the user does a 'make zImage' or a
630 'make zImage.initrd'.
632 If unsure, leave blank
634 config ARCH_WANTS_FREEZER_CONTROL
638 source kernel/power/Kconfig
641 bool "Enable seccomp to safely compute untrusted bytecode"
645 This kernel feature is useful for number crunching applications
646 that may need to compute untrusted bytecode during their
647 execution. By using pipes or other transports made available to
648 the process as file descriptors supporting the read/write
649 syscalls, it's possible to isolate those applications in
650 their own address space using seccomp. Once seccomp is
651 enabled via /proc/<pid>/seccomp, it cannot be disabled
652 and the task is only allowed to execute a few safe syscalls
653 defined by each seccomp mode.
655 If unsure, say Y. Only embedded should say N here.
666 bool "Support for ISA-bus hardware"
670 Find out whether you have ISA slots on your motherboard. ISA is the
671 name of a bus system, i.e. the way the CPU talks to the other stuff
672 inside your box. If you have an Apple machine, say N here; if you
673 have an IBM RS/6000 or pSeries machine, say Y. If you have an
674 embedded board, consult your board documentation.
680 config NEED_DMA_MAP_STATE
681 def_bool (PPC64 || NOT_COHERENT_CACHE)
683 config NEED_SG_DMA_LENGTH
686 config GENERIC_ISA_DMA
688 depends on ISA_DMA_API
691 config PPC_INDIRECT_PCI
694 default y if 40x || 44x
708 select PPC_INDIRECT_PCI
714 depends on SUSPEND && (PPC_85xx || PPC_86xx)
716 Freescale MPC85xx/MPC86xx power management controller support
717 (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
722 depends on SUSPEND && (44x || 40x)
724 PPC4xx Clock Power Management (CPM) support (suspend/resume).
725 It also enables support for two different idle states (idle-wait
732 bool "Freescale Local Bus support"
735 Enables reporting of errors from the Freescale local bus
736 controller. Also contains some common code used by
737 drivers for specific local bus peripherals.
745 depends on PPC_83xx || QUICC_ENGINE || CPM2
747 Freescale General-purpose Timers support
749 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
753 # Platforms that what PCI turned unconditionally just do select PCI
754 # in their config node. Platforms that want to choose at config
755 # time should select PPC_PCI_CHOICE
756 config PPC_PCI_CHOICE
760 bool "PCI support" if PPC_PCI_CHOICE
761 default y if !40x && !CPM2 && !8xx && !PPC_83xx \
762 && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
763 default PCI_QSPAN if !4xx && !CPM2 && 8xx
764 select GENERIC_PCI_IOMAP
766 Find out whether your system includes a PCI bus. PCI is the name of
767 a bus system, i.e. the way the CPU talks to the other stuff inside
768 your box. If you say Y here, the kernel will include drivers and
769 infrastructure code to support PCI bus devices.
779 depends on !4xx && !CPM2 && 8xx
782 Say Y here if you have a system based on a Motorola 8xx-series
783 embedded processor with a QSPAN PCI interface, otherwise say N.
787 depends on PCI && 8260
788 select PPC_INDIRECT_PCI
791 source "drivers/pci/pcie/Kconfig"
793 source "drivers/pci/Kconfig"
795 source "drivers/pcmcia/Kconfig"
797 source "drivers/pci/hotplug/Kconfig"
804 tristate "RapidIO support"
805 depends on HAS_RAPIDIO || PCI
807 If you say Y here, the kernel will include drivers and
808 infrastructure code to support RapidIO interconnect devices.
811 bool "Freescale Embedded SRIO Controller support"
812 depends on RAPIDIO = y && HAS_RAPIDIO
815 Include support for RapidIO controller on Freescale embedded
816 processors (MPC8548, MPC8641, etc).
818 source "drivers/rapidio/Kconfig"
822 config NONSTATIC_KERNEL
826 menu "Advanced setup"
829 config ADVANCED_OPTIONS
830 bool "Prompt for advanced kernel configuration options"
832 This option will enable prompting for a variety of advanced kernel
833 configuration options. These options can cause the kernel to not
834 work if they are set incorrectly, but can be used to optimize certain
835 aspects of kernel memory management.
837 Unless you know what you are doing, say N here.
839 comment "Default settings for advanced configuration options are used"
840 depends on !ADVANCED_OPTIONS
842 config LOWMEM_SIZE_BOOL
843 bool "Set maximum low memory"
844 depends on ADVANCED_OPTIONS
846 This option allows you to set the maximum amount of memory which
847 will be used as "low memory", that is, memory which the kernel can
848 access directly, without having to set up a kernel virtual mapping.
849 This can be useful in optimizing the layout of kernel virtual
852 Say N here unless you know what you are doing.
855 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
858 config LOWMEM_CAM_NUM_BOOL
859 bool "Set number of CAMs to use to map low memory"
860 depends on ADVANCED_OPTIONS && FSL_BOOKE
862 This option allows you to set the maximum number of CAM slots that
863 will be used to map low memory. There are a limited number of slots
864 available and even more limited number that will fit in the L1 MMU.
865 However, using more entries will allow mapping more low memory. This
866 can be useful in optimizing the layout of kernel virtual memory.
868 Say N here unless you know what you are doing.
870 config LOWMEM_CAM_NUM
872 int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
875 config DYNAMIC_MEMSTART
876 bool "Enable page aligned dynamic load address for kernel"
877 depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
878 select NONSTATIC_KERNEL
880 This option enables the kernel to be loaded at any page aligned
881 physical address. The kernel creates a mapping from KERNELBASE to
882 the address where the kernel is loaded. The page size here implies
883 the TLB page size of the mapping for kernel on the particular platform.
884 Please refer to the init code for finding the TLB page size.
886 DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE
887 kernel image, where the only restriction is the page aligned kernel
888 load address. When this option is enabled, the compile time physical
889 address CONFIG_PHYSICAL_START is ignored.
891 This option is overridden by CONFIG_RELOCATABLE
894 bool "Build a relocatable kernel"
895 depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE)
896 select NONSTATIC_KERNEL
898 This builds a kernel image that is capable of running at the
899 location the kernel is loaded at, without any alignment restrictions.
900 This feature is a superset of DYNAMIC_MEMSTART and hence overrides it.
902 One use is for the kexec on panic case where the recovery kernel
903 must live at a different physical address than the primary
906 Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
907 it has been loaded at and the compile time physical addresses
908 CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START
909 setting can still be useful to bootwrappers that need to know the
910 load address of the kernel (eg. u-boot/mkimage).
912 config RELOCATABLE_PPC32
914 depends on PPC32 && RELOCATABLE
916 config PAGE_OFFSET_BOOL
917 bool "Set custom page offset address"
918 depends on ADVANCED_OPTIONS
920 This option allows you to set the kernel virtual address at which
921 the kernel will map low memory. This can be useful in optimizing
922 the virtual memory layout of the system.
924 Say N here unless you know what you are doing.
927 hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
930 config KERNEL_START_BOOL
931 bool "Set custom kernel base address"
932 depends on ADVANCED_OPTIONS
934 This option allows you to set the kernel virtual address at which
935 the kernel will be loaded. Normally this should match PAGE_OFFSET
936 however there are times (like kdump) that one might not want them
939 Say N here unless you know what you are doing.
942 hex "Virtual address of kernel base" if KERNEL_START_BOOL
943 default PAGE_OFFSET if PAGE_OFFSET_BOOL
944 default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL
947 config PHYSICAL_START_BOOL
948 bool "Set physical address where the kernel is loaded"
949 depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
951 This gives the physical address where the kernel is loaded.
953 Say N here unless you know what you are doing.
955 config PHYSICAL_START
956 hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL
957 default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL
960 config PHYSICAL_ALIGN
962 default "0x04000000" if FSL_BOOKE
964 This value puts the alignment restrictions on physical address
965 where kernel is loaded and run from. Kernel is compiled for an
966 address which meets above alignment restriction.
968 config TASK_SIZE_BOOL
969 bool "Set custom user task size"
970 depends on ADVANCED_OPTIONS
972 This option allows you to set the amount of virtual address space
973 allocated to user tasks. This can be useful in optimizing the
974 virtual memory layout of the system.
976 Say N here unless you know what you are doing.
979 hex "Size of user task space" if TASK_SIZE_BOOL
980 default "0x80000000" if PPC_8xx
983 config CONSISTENT_SIZE_BOOL
984 bool "Set custom consistent memory pool size"
985 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
987 This option allows you to set the size of the
988 consistent memory pool. This pool of virtual memory
989 is used to make consistent memory allocations.
991 config CONSISTENT_SIZE
992 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
993 default "0x00200000" if NOT_COHERENT_CACHE
996 bool "Pinned Kernel TLBs (860 ONLY)"
997 depends on ADVANCED_OPTIONS && 8xx
1002 bool "Build a relocatable kernel"
1003 select NONSTATIC_KERNEL
1005 This builds a kernel image that is capable of running anywhere
1006 in the RMA (real memory area) at any 16k-aligned base address.
1007 The kernel is linked as a position-independent executable (PIE)
1008 and contains dynamic relocations which are processed early
1009 in the bootup process.
1011 One use is for the kexec on panic case where the recovery kernel
1012 must live at a different physical address than the primary
1015 # This value must have zeroes in the bottom 60 bits otherwise lots will break
1018 default "0xc000000000000000"
1021 default "0xc000000000000000"
1022 config PHYSICAL_START
1024 default "0x00000000"
1030 source "net/Kconfig"
1032 source "drivers/Kconfig"
1036 source "arch/powerpc/sysdev/qe_lib/Kconfig"
1038 source "lib/Kconfig"
1040 source "arch/powerpc/Kconfig.debug"
1042 source "security/Kconfig"
1046 depends on COMPAT && KEYS
1049 source "crypto/Kconfig"
1051 config PPC_LIB_RHEAP
1054 source "arch/powerpc/kvm/Kconfig"