default 64 if PPC64
default 32 if !PPC64
-config PPC_MERGE
- def_bool y
+config ARCH_PHYS_ADDR_T_64BIT
+ def_bool PPC64 || PHYS_64BIT
config MMU
bool
bool
default y
+config GENERIC_HARDIRQS_NO__DO_IRQ
+ bool
+ default y
+
config HAVE_SETUP_PER_CPU_AREA
def_bool PPC64
+config NEED_PER_CPU_EMBED_FIRST_CHUNK
+ def_bool PPC64
+
config IRQ_PER_CPU
bool
default y
+config NR_IRQS
+ int "Number of virtual interrupt numbers"
+ range 32 32768
+ default "512"
+ help
+ This defines the number of virtual interrupt numbers the kernel
+ can manage. Virtual interrupt numbers are what you see in
+ /proc/interrupts. If you configure your system to have too few,
+ drivers will fail to load or worse - handle with care.
+
config STACKTRACE_SUPPORT
bool
default y
+config HAVE_LATENCYTOP_SUPPORT
+ def_bool y
+
config TRACE_IRQFLAGS_SUPPORT
bool
- depends on PPC64
default y
config LOCKDEP_SUPPORT
bool
default y
-config GENERIC_CALIBRATE_DELAY
- bool
- default y
-
config GENERIC_FIND_NEXT_BIT
bool
default y
config PPC
bool
default y
+ select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_DYNAMIC_FTRACE
+ select HAVE_FUNCTION_TRACER
+ select HAVE_FUNCTION_GRAPH_TRACER
+ select ARCH_WANT_OPTIONAL_GPIOLIB
select HAVE_IDE
- select HAVE_OPROFILE
+ select HAVE_IOREMAP_PROT
+ select HAVE_EFFICIENT_UNALIGNED_ACCESS
select HAVE_KPROBES
+ select HAVE_ARCH_KGDB
select HAVE_KRETPROBES
+ select HAVE_ARCH_TRACEHOOK
select HAVE_LMB
+ select HAVE_DMA_ATTRS
+ select HAVE_DMA_API_DEBUG
+ select USE_GENERIC_SMP_HELPERS if SMP
+ select HAVE_OPROFILE
+ select HAVE_SYSCALL_WRAPPERS if PPC64
+ select GENERIC_ATOMIC64 if PPC32
+ select HAVE_PERF_EVENTS
+ select HAVE_REGS_AND_STACK_ACCESS_API
config EARLY_PRINTK
bool
bool
default y if PPC32
-config SCHED_NO_NO_OMIT_FRAME_POINTER
+config SCHED_OMIT_FRAME_POINTER
bool
default y
config OF
def_bool y
+ select OF_FLATTREE
config PPC_UDBG_16550
bool
default y if PMAC_APM_EMU
bool
+config DTC
+ bool
+ default y
+
config DEFAULT_UIMAGE
bool
help
config REDBOOT
bool
-config HIBERNATE_32
- bool
- depends on (PPC_PMAC && !SMP) || BROKEN
- default y
-
-config HIBERNATE_64
- bool
- depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL)
- default y
-
config ARCH_HIBERNATION_POSSIBLE
bool
- depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32)
default y
config ARCH_SUSPEND_POSSIBLE
def_bool y
- depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200
+ depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
+ PPC_85xx || PPC_86xx
config PPC_DCR_NATIVE
bool
depends on PPC64 # not supported on 32 bits yet
default n
+config ARCH_SUPPORTS_DEBUG_PAGEALLOC
+ def_bool y
+
+config PPC_ADV_DEBUG_REGS
+ bool
+ depends on 40x || BOOKE
+ default y
+
+config PPC_ADV_DEBUG_IACS
+ int
+ depends on PPC_ADV_DEBUG_REGS
+ default 4 if 44x
+ default 2
+
+config PPC_ADV_DEBUG_DACS
+ int
+ depends on PPC_ADV_DEBUG_REGS
+ default 2
+
+config PPC_ADV_DEBUG_DVCS
+ int
+ depends on PPC_ADV_DEBUG_REGS
+ default 2 if 44x
+ default 0
+
+config PPC_ADV_DEBUG_DAC_RANGE
+ bool
+ depends on PPC_ADV_DEBUG_REGS && 44x
+ default y
+
source "init/Kconfig"
+source "kernel/Kconfig.freezer"
+
source "arch/powerpc/sysdev/Kconfig"
source "arch/powerpc/platforms/Kconfig"
It is recommended that you build a soft-float userspace instead.
-config IOMMU_VMERGE
- bool "Enable IOMMU virtual merging"
- depends on PPC64
- default y
- help
- Cause IO segments sent to a device for DMA to be merged virtually
- by the IOMMU when they happen to have been allocated contiguously.
- This doesn't add pressure to the IOMMU allocator. However, some
- drivers don't support getting large merged segments coming back
- from *_map_sg().
-
- Most drivers don't have this problem; it is safe to say Y here.
-
config IOMMU_HELPER
def_bool PPC64
+config SWIOTLB
+ bool "SWIOTLB support"
+ default n
+ select IOMMU_HELPER
+ ---help---
+ Support for IO bounce buffering for systems without an IOMMU.
+ This allows us to DMA to the full physical address space on
+ platforms where the size of a physical address is larger
+ than the bus address. Not all platforms support this.
+
config HOTPLUG_CPU
bool "Support for enabling/disabling CPUs"
depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
Say N if you are unsure.
+config ARCH_CPU_PROBE_RELEASE
+ def_bool y
+ depends on HOTPLUG_CPU
+
config ARCH_ENABLE_MEMORY_HOTPLUG
def_bool y
config KEXEC
bool "kexec system call (EXPERIMENTAL)"
- depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL
+ depends on PPC_BOOK3S && EXPERIMENTAL
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
strongly in flux, so no good recommendation can be made.
config CRASH_DUMP
- bool "Build a kdump crash kernel (EXPERIMENTAL)"
- depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
+ bool "Build a kdump crash kernel"
+ depends on PPC64 || 6xx
+ select RELOCATABLE if PPC64
help
Build a kernel suitable for use as a kdump capture kernel.
- The kernel will be linked at a different address than normal, and
- so can only be used for Kdump.
-
- Don't change this unless you know what you are doing.
+ The same kernel binary can be used as production kernel and dump
+ capture kernel.
config PHYP_DUMP
bool "Hypervisor-assisted dump (EXPERIMENTAL)"
help
Hypervisor-assisted dump is meant to be a kdump replacement
offering robustness and speed not possible without system
- hypervisor assistence.
+ hypervisor assistance.
If unsure, say "N"
CPU. Generally saying Y is safe, although some problems have been
reported with SMP Power Macintoshes with this option enabled.
+config SPARSE_IRQ
+ bool "Support sparse irq numbering"
+ default y
+ help
+ This enables support for sparse irqs. This is useful for distro
+ kernels that want to define a high CONFIG_NR_CPUS value but still
+ want to have low kernel memory footprint on smaller machines.
+
+ ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread
+ out the irq_desc[] array in a more NUMA-friendly way. )
+
+ If you don't know what to do here, say Y.
+
config NUMA
bool "NUMA support"
depends on PPC64
config NODES_SHIFT
int
+ default "8" if PPC64
default "4"
depends on NEED_MULTIPLE_NODES
+config MAX_ACTIVE_REGIONS
+ int
+ default "256" if PPC64
+ default "32"
+
config ARCH_SELECT_MEMORY_MODEL
def_bool y
depends on PPC64
config ARCH_POPULATES_NODE_MAP
def_bool y
+config SYS_SUPPORTS_HUGETLBFS
+ def_bool y
+ depends on PPC_BOOK3S_64
+
source "mm/Kconfig"
config ARCH_MEMORY_PROBE
depends on PPC64
default n
+config STDBINUTILS
+ bool "Using standard binutils settings"
+ depends on 44x
+ default y
+ help
+ Turning this option off allows you to select 256KB PAGE_SIZE on 44x.
+ Note, that kernel will be able to run only those applications,
+ which had been compiled using binutils later than 2.17.50.0.3 with
+ '-zmax-page-size' set to 256K (the default is 64K). Or, if using
+ the older binutils, you can patch them with a trivial patch, which
+ changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.
+
+choice
+ prompt "Page size"
+ default PPC_4K_PAGES
+ help
+ Select the kernel logical page size. Increasing the page size
+ will reduce software overhead at each page boundary, allow
+ hardware prefetch mechanisms to be more effective, and allow
+ larger dma transfers increasing IO efficiency and reducing
+ overhead. However the utilization of memory will increase.
+ For example, each cached file will using a multiple of the
+ page size to hold its contents and the difference between the
+ end of file and the end of page is wasted.
+
+ Some dedicated systems, such as software raid serving with
+ accelerated calculations, have shown significant increases.
+
+ If you configure a 64 bit kernel for 64k pages but the
+ processor does not support them, then the kernel will simulate
+ them with 4k pages, loading them on demand, but with the
+ reduced software overhead and larger internal fragmentation.
+ For the 32 bit kernel, a large page option will not be offered
+ unless it is supported by the configured processor.
+
+ If unsure, choose 4K_PAGES.
+
+config PPC_4K_PAGES
+ bool "4k page size"
+
+config PPC_16K_PAGES
+ bool "16k page size" if 44x
+
config PPC_64K_PAGES
- bool "64k page size"
- depends on PPC64
- select PPC_HAS_HASH_64K
+ bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64
+ select PPC_HAS_HASH_64K if PPC_STD_MMU_64
+
+config PPC_256K_PAGES
+ bool "256k page size" if 44x
+ depends on !STDBINUTILS
help
- This option changes the kernel logical page size to 64k. On machines
- without processor support for 64k pages, the kernel will simulate
- them by loading each individual 4k page on demand transparently,
- while on hardware with such support, it will be used to map
- normal application pages.
+ Make the page size 256k.
+
+ As the ELF standard only requires alignment to support page
+ sizes up to 64k, you will need to compile all of your user
+ space applications with a non-standard binutils settings
+ (see the STDBINUTILS description for details).
+
+ Say N unless you know what you are doing.
+
+endchoice
config FORCE_MAX_ZONEORDER
int "Maximum zone order"
- default "9" if PPC_64K_PAGES
+ range 9 64 if PPC64 && PPC_64K_PAGES
+ default "9" if PPC64 && PPC_64K_PAGES
+ range 13 64 if PPC64 && !PPC_64K_PAGES
default "13" if PPC64 && !PPC_64K_PAGES
+ range 9 64 if PPC32 && PPC_16K_PAGES
+ default "9" if PPC32 && PPC_16K_PAGES
+ range 7 64 if PPC32 && PPC_64K_PAGES
+ default "7" if PPC32 && PPC_64K_PAGES
+ range 5 64 if PPC32 && PPC_256K_PAGES
+ default "5" if PPC32 && PPC_256K_PAGES
+ range 11 64
default "11"
help
The kernel memory allocator divides physically contiguous memory
config PPC_SUBPAGE_PROT
bool "Support setting protections for 4k subpages"
- depends on PPC_64K_PAGES
+ depends on PPC_STD_MMU_64 && PPC_64K_PAGES
help
This option adds support for a system call to allow user programs
to set access permissions (read/write, readonly, or no access)
some command-line options at build time by entering them here. In
most cases you will need to specify the root device here.
+config EXTRA_TARGETS
+ string "Additional default image types"
+ help
+ List additional targets to be built by the bootwrapper here (separated
+ by spaces). This is useful for targets that depend of device tree
+ files in the .dts directory.
+
+ Targets in this list will be build as part of the default build
+ target, or when the user does a 'make zImage' or a
+ 'make zImage.initrd'.
+
+ If unsure, leave blank
+
if !44x || BROKEN
config ARCH_WANTS_FREEZER_CONTROL
def_bool y
bool
default y
+config NEED_DMA_MAP_STATE
+ def_bool (PPC64 || NOT_COHERENT_CACHE)
+
+config NEED_SG_DMA_LENGTH
+ def_bool y
+
config GENERIC_ISA_DMA
bool
depends on PPC64 || POWER4 || 6xx && !CPM2
config FSL_PCI
bool
select PPC_INDIRECT_PCI
+ select PCI_QUIRKS
+
+config FSL_PMC
+ bool
+ default y
+ depends on SUSPEND && (PPC_85xx || PPC_86xx)
+ help
+ Freescale MPC85xx/MPC86xx power management controller support
+ (suspend/resume). For MPC83xx see platforms/83xx/suspend.c
config 4xx_SOC
bool
help
Freescale Localbus support
+config FSL_GTM
+ bool
+ depends on PPC_83xx || QUICC_ENGINE || CPM2
+ help
+ Freescale General-purpose Timers support
+
# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
config MCA
bool
+# Platforms that what PCI turned unconditionally just do select PCI
+# in their config node. Platforms that want to choose at config
+# time should select PPC_PCI_CHOICE
+config PPC_PCI_CHOICE
+ bool
+
config PCI
- bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
- || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
- || PPC_PS3 || 44x
- default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \
- && !PPC_85xx && !PPC_86xx
+ bool "PCI support" if PPC_PCI_CHOICE
+ default y if !40x && !CPM2 && !8xx && !PPC_83xx \
+ && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON
default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
default PCI_QSPAN if !4xx && !CPM2 && 8xx
select ARCH_SUPPORTS_MSI
hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
default "0x30000000"
+config LOWMEM_CAM_NUM_BOOL
+ bool "Set number of CAMs to use to map low memory"
+ depends on ADVANCED_OPTIONS && FSL_BOOKE
+ help
+ This option allows you to set the maximum number of CAM slots that
+ will be used to map low memory. There are a limited number of slots
+ available and even more limited number that will fit in the L1 MMU.
+ However, using more entries will allow mapping more low memory. This
+ can be useful in optimizing the layout of kernel virtual memory.
+
+ Say N here unless you know what you are doing.
+
+config LOWMEM_CAM_NUM
+ depends on FSL_BOOKE
+ int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL
+ default 3
+
config RELOCATABLE
bool "Build a relocatable kernel (EXPERIMENTAL)"
depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE
config PHYSICAL_ALIGN
hex
- default "0x10000000" if FSL_BOOKE
+ default "0x04000000" if FSL_BOOKE
help
This value puts the alignment restrictions on physical address
where kernel is loaded and run from. Kernel is compiled for an
default "0x80000000" if PPC_PREP || PPC_8xx
default "0xc0000000"
-config CONSISTENT_START_BOOL
- bool "Set custom consistent memory pool address"
- depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
- help
- This option allows you to set the base virtual address
- of the consistent memory pool. This pool of virtual
- memory is used to make consistent memory allocations.
-
-config CONSISTENT_START
- hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
- default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx)
- default "0xff100000" if NOT_COHERENT_CACHE
-
config CONSISTENT_SIZE_BOOL
bool "Set custom consistent memory pool size"
depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
endmenu
if PPC64
+config RELOCATABLE
+ bool "Build a relocatable kernel"
+ help
+ This builds a kernel image that is capable of running anywhere
+ in the RMA (real memory area) at any 16k-aligned base address.
+ The kernel is linked as a position-independent executable (PIE)
+ and contains dynamic relocations which are processed early
+ in the bootup process.
+
+ One use is for the kexec on panic case where the recovery kernel
+ must live at a different physical address than the primary
+ kernel.
+
config PAGE_OFFSET
hex
default "0xc000000000000000"
config KERNEL_START
hex
- default "0xc000000002000000" if CRASH_DUMP
default "0xc000000000000000"
config PHYSICAL_START
hex
- default "0x02000000" if CRASH_DUMP
default "0x00000000"
endif
source "fs/Kconfig"
-# XXX source "arch/ppc/8xx_io/Kconfig"
-
-# XXX source "arch/ppc/8260_io/Kconfig"
-
source "arch/powerpc/sysdev/qe_lib/Kconfig"
source "lib/Kconfig"
config PPC_CLOCK
bool
default n
+ select HAVE_CLK
config PPC_LIB_RHEAP
bool
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff