config PPC
bool
default y
+ select HAVE_IDE
select HAVE_OPROFILE
select HAVE_KPROBES
+ select HAVE_KRETPROBES
+ select HAVE_LMB
config EARLY_PRINTK
bool
config COMPAT
bool
default y if PPC64
+ select COMPAT_BINFMT_ELF
config SYSVIPC_COMPAT
bool
source kernel/Kconfig.preempt
source "fs/Kconfig.binfmt"
-# We optimistically allocate largepages from the VM, so make the limit
-# large enough (16MB). This badly named config option is actually
-# max order + 1
-config FORCE_MAX_ZONEORDER
- int
- depends on PPC64
- default "9" if PPC_64K_PAGES
- default "13"
-
config HUGETLB_PAGE_SIZE_VARIABLE
bool
depends on HUGETLB_PAGE
config ARCH_ENABLE_MEMORY_HOTPLUG
def_bool y
+config ARCH_HAS_WALK_MEMORY
+ def_bool y
+
+config ARCH_ENABLE_MEMORY_HOTREMOVE
+ def_bool y
+
config KEXEC
bool "kexec system call (EXPERIMENTAL)"
depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL
Don't change this unless you know what you are doing.
+config PHYP_DUMP
+ bool "Hypervisor-assisted dump (EXPERIMENTAL)"
+ depends on PPC_PSERIES && EXPERIMENTAL
+ help
+ Hypervisor-assisted dump is meant to be a kdump replacement
+ offering robustness and speed not possible without system
+ hypervisor assistence.
+
+ If unsure, say "N"
+
config PPCBUG_NVRAM
bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
default y if PPC_PREP
while on hardware with such support, it will be used to map
normal application pages.
+config FORCE_MAX_ZONEORDER
+ int "Maximum zone order"
+ default "9" if PPC_64K_PAGES
+ default "13" if PPC64 && !PPC_64K_PAGES
+ default "11"
+ help
+ The kernel memory allocator divides physically contiguous memory
+ blocks into "zones", where each zone is a power of two number of
+ pages. This option selects the largest power of two that the kernel
+ keeps in the memory allocator. If you need to allocate very large
+ blocks of physically contiguous memory, then you may need to
+ increase this value.
+
+ This config option is actually maximum order plus one. For example,
+ a value of 11 means that the largest free memory block is 2^10 pages.
+
+ The page size is not necessarily 4KB. For example, on 64-bit
+ systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep
+ this in mind when choosing a value for this option.
+
config PPC_SUBPAGE_PROT
bool "Support setting protections for 4k subpages"
depends on PPC_64K_PAGES
If unsure, say Y. Only embedded should say N here.
-config WANT_DEVICE_TREE
- bool
- default n
-
-config DEVICE_TREE
- string "Static device tree source file"
- depends on WANT_DEVICE_TREE
- help
- This specifies the device tree source (.dts) file to be
- compiled and included when building the bootwrapper. If a
- relative filename is given, then it will be relative to
- arch/powerpc/boot/dts. If you are not using the bootwrapper,
- or do not need to build a dts into the bootwrapper, this
- field is ignored.
-
- For example, this is required when building a cuImage target
- for an older U-Boot, which cannot pass a device tree itself.
- Such a kernel will not work with a newer U-Boot that tries to
- pass a device tree (unless you tell it not to). If your U-Boot
- does not mention a device tree in "help bootm", then use the
- cuImage target and specify a device tree here. Otherwise, use
- the uImage target and leave this field blank.
-
endmenu
config ISA_DMA_API
bool
select PPC_INDIRECT_PCI
+config 4xx_SOC
+ bool
+
# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
config MCA
bool
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_83xx \
+ default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \
&& !PPC_85xx && !PPC_86xx
default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
default PCI_QSPAN if !4xx && !CPM2 && 8xx