def_bool y
config ARCH_DMA_ADDR_T_64BIT
- def_bool 64BIT
+ def_bool y
config GENERIC_LOCKBREAK
def_bool y if SMP && PREEMPT
config KEXEC
def_bool y
+ select KEXEC_CORE
config AUDIT_ARCH
def_bool y
-config NO_IOPORT
+config NO_IOPORT_MAP
def_bool y
config PCI_QUIRKS
def_bool n
+config ARCH_SUPPORTS_UPROBES
+ def_bool y
+
config S390
def_bool y
- select ARCH_DISCARD_MEMBLOCK
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+ select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+ select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_GCOV_PROFILE_ALL
+ select ARCH_HAS_SG_CHAIN
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_INLINE_READ_LOCK
select ARCH_INLINE_READ_LOCK_BH
select ARCH_INLINE_WRITE_UNLOCK_BH
select ARCH_INLINE_WRITE_UNLOCK_IRQ
select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
- select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select ARCH_SAVE_PAGE_KEYS if HIBERNATION
+ select ARCH_SUPPORTS_ATOMIC_RMW
+ select ARCH_SUPPORTS_NUMA_BALANCING
+ select ARCH_USE_BUILTIN_BSWAP
+ select ARCH_USE_CMPXCHG_LOCKREF
+ select ARCH_WANTS_PROT_NUMA_PROT_NONE
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS2
+ select DYNAMIC_FTRACE if FUNCTION_TRACER
select GENERIC_CLOCKEVENTS
+ select GENERIC_CPU_AUTOPROBE
select GENERIC_CPU_DEVICES if !SMP
+ select GENERIC_FIND_FIRST_BIT
select GENERIC_SMP_IDLE_THREAD
- select GENERIC_TIME_VSYSCALL_OLD
+ select GENERIC_TIME_VSYSCALL
select HAVE_ALIGNED_STRUCT_PAGE if SLUB
- select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
- select HAVE_ARCH_MUTEX_CPU_RELAX
+ select HAVE_ARCH_AUDITSYSCALL
+ select HAVE_ARCH_EARLY_PFN_TO_NID
+ select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_SECCOMP_FILTER
+ select HAVE_ARCH_SOFT_DIRTY
select HAVE_ARCH_TRACEHOOK
- select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT
- select HAVE_BPF_JIT if 64BIT && PACK_STACK
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE
+ select HAVE_BPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
select HAVE_CMPXCHG_DOUBLE
select HAVE_CMPXCHG_LOCAL
- select HAVE_C_RECORDMCOUNT
select HAVE_DEBUG_KMEMLEAK
select HAVE_DYNAMIC_FTRACE
+ select HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
- select HAVE_FUNCTION_TRACE_MCOUNT_TEST
+ select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_LZ4
select HAVE_KERNEL_LZMA
select HAVE_KERNEL_LZO
select HAVE_KERNEL_XZ
select HAVE_KPROBES
select HAVE_KRETPROBES
- select HAVE_KVM if 64BIT
+ select HAVE_KVM
+ select HAVE_LIVEPATCH
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
+ select HAVE_MEMBLOCK_PHYS_MAP
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_OPROFILE
select HAVE_PERF_EVENTS
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_SYSCALL_TRACEPOINTS
- select HAVE_UID16 if 32BIT
select HAVE_VIRT_CPU_ACCOUNTING
- select VIRT_TO_BUS
- select INIT_ALL_POSSIBLE
- select KTIME_SCALAR if 32BIT
select MODULES_USE_ELF_RELA
- select OLD_SIGSUSPEND3
+ select NO_BOOTMEM
select OLD_SIGACTION
+ select OLD_SIGSUSPEND3
select SYSCTL_EXCEPTION_TRACE
- select USE_GENERIC_SMP_HELPERS if SMP
+ select TTY
select VIRT_CPU_ACCOUNTING
+ select VIRT_TO_BUS
+
config SCHED_OMIT_FRAME_POINTER
def_bool y
+config PGTABLE_LEVELS
+ int
+ default 4 if 64BIT
+ default 2
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
+source "kernel/livepatch/Kconfig"
+
menu "Processor type and features"
config HAVE_MARCH_Z900_FEATURES
def_bool n
select HAVE_MARCH_Z196_FEATURES
+config HAVE_MARCH_Z13_FEATURES
+ def_bool n
+ select HAVE_MARCH_ZEC12_FEATURES
+
choice
prompt "Processor type"
- default MARCH_G5
-
-config MARCH_G5
- bool "System/390 model G5 and G6"
- depends on !64BIT
- help
- Select this to build a 31 bit kernel that works
- on all ESA/390 and z/Architecture machines.
+ default MARCH_Z900
config MARCH_Z900
bool "IBM zSeries model z800 and z900"
- select HAVE_MARCH_Z900_FEATURES if 64BIT
+ select HAVE_MARCH_Z900_FEATURES
help
Select this to enable optimizations for model z800/z900 (2064 and
2066 series). This will enable some optimizations that are not
config MARCH_Z990
bool "IBM zSeries model z890 and z990"
- select HAVE_MARCH_Z990_FEATURES if 64BIT
+ select HAVE_MARCH_Z990_FEATURES
help
Select this to enable optimizations for model z890/z990 (2084 and
2086 series). The kernel will be slightly faster but will not work
config MARCH_Z9_109
bool "IBM System z9"
- select HAVE_MARCH_Z9_109_FEATURES if 64BIT
+ select HAVE_MARCH_Z9_109_FEATURES
help
Select this to enable optimizations for IBM System z9 (2094 and
2096 series). The kernel will be slightly faster but will not work
config MARCH_Z10
bool "IBM System z10"
- select HAVE_MARCH_Z10_FEATURES if 64BIT
+ select HAVE_MARCH_Z10_FEATURES
help
Select this to enable optimizations for IBM System z10 (2097 and
2098 series). The kernel will be slightly faster but will not work
config MARCH_Z196
bool "IBM zEnterprise 114 and 196"
- select HAVE_MARCH_Z196_FEATURES if 64BIT
+ select HAVE_MARCH_Z196_FEATURES
help
Select this to enable optimizations for IBM zEnterprise 114 and 196
(2818 and 2817 series). The kernel will be slightly faster but will
not work on older machines.
config MARCH_ZEC12
- bool "IBM zEC12"
- select HAVE_MARCH_ZEC12_FEATURES if 64BIT
+ bool "IBM zBC12 and zEC12"
+ select HAVE_MARCH_ZEC12_FEATURES
+ help
+ Select this to enable optimizations for IBM zBC12 and zEC12 (2828 and
+ 2827 series). The kernel will be slightly faster but will not work on
+ older machines.
+
+config MARCH_Z13
+ bool "IBM z13"
+ select HAVE_MARCH_Z13_FEATURES
help
- Select this to enable optimizations for IBM zEC12 (2827 series). The
- kernel will be slightly faster but will not work on older machines.
+ Select this to enable optimizations for IBM z13 (2964 series).
+ The kernel will be slightly faster but will not work on older
+ machines.
endchoice
-config 64BIT
- def_bool y
- prompt "64 bit kernel"
+config MARCH_Z900_TUNE
+ def_bool TUNE_Z900 || MARCH_Z900 && TUNE_DEFAULT
+
+config MARCH_Z990_TUNE
+ def_bool TUNE_Z990 || MARCH_Z990 && TUNE_DEFAULT
+
+config MARCH_Z9_109_TUNE
+ def_bool TUNE_Z9_109 || MARCH_Z9_109 && TUNE_DEFAULT
+
+config MARCH_Z10_TUNE
+ def_bool TUNE_Z10 || MARCH_Z10 && TUNE_DEFAULT
+
+config MARCH_Z196_TUNE
+ def_bool TUNE_Z196 || MARCH_Z196 && TUNE_DEFAULT
+
+config MARCH_ZEC12_TUNE
+ def_bool TUNE_ZEC12 || MARCH_ZEC12 && TUNE_DEFAULT
+
+config MARCH_Z13_TUNE
+ def_bool TUNE_Z13 || MARCH_Z13 && TUNE_DEFAULT
+
+choice
+ prompt "Tune code generation"
+ default TUNE_DEFAULT
+ help
+ Cause the compiler to tune (-mtune) the generated code for a machine.
+ This will make the code run faster on the selected machine but
+ somewhat slower on other machines.
+ This option only changes how the compiler emits instructions, not the
+ selection of instructions itself, so the resulting kernel will run on
+ all other machines.
+
+config TUNE_DEFAULT
+ bool "Default"
help
- Select this option if you have an IBM z/Architecture machine
- and want to use the 64 bit addressing mode.
+ Tune the generated code for the target processor for which the kernel
+ will be compiled.
+
+config TUNE_Z900
+ bool "IBM zSeries model z800 and z900"
+
+config TUNE_Z990
+ bool "IBM zSeries model z890 and z990"
+
+config TUNE_Z9_109
+ bool "IBM System z9"
+
+config TUNE_Z10
+ bool "IBM System z10"
+
+config TUNE_Z196
+ bool "IBM zEnterprise 114 and 196"
+
+config TUNE_ZEC12
+ bool "IBM zBC12 and zEC12"
-config 32BIT
- def_bool y if !64BIT
+config TUNE_Z13
+ bool "IBM z13"
+
+endchoice
+
+config 64BIT
+ def_bool y
config COMPAT
def_bool y
prompt "Kernel support for 31 bit emulation"
- depends on 64BIT
select COMPAT_BINFMT_ELF if BINFMT_ELF
select ARCH_WANT_OLD_COMPAT_IPC
select COMPAT_OLD_SIGACTION
+ depends on MULTIUSER
help
Select this option if you want to enable your system kernel to
handle system-calls from ELF binaries for 31 bit ESA. This option
a system with only one CPU, like most personal computers, say N. If
you have a system with more than one CPU, say Y.
- If you say N here, the kernel will run on single and multiprocessor
+ If you say N here, the kernel will run on uni- and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on many, but not all,
- singleprocessor machines. On a singleprocessor machine, the kernel
+ uniprocessor machines. On a uniprocessor machine, the kernel
will run faster if you say N here.
See also the SMP-HOWTO available at
Even if you don't know what to do here, say Y.
config NR_CPUS
- int "Maximum number of CPUs (2-64)"
- range 2 64
+ int "Maximum number of CPUs (2-512)"
+ range 2 512
depends on SMP
- default "32" if !64BIT
- default "64" if 64BIT
+ default "64"
help
This allows you to specify the maximum number of CPUs which this
- kernel will support. The maximum supported value is 64 and the
+ kernel will support. The maximum supported value is 512 and the
minimum value which makes sense is 2.
This is purely to save memory - each supported CPU adds
def_bool y
prompt "Support for hot-pluggable CPUs"
depends on SMP
- select HOTPLUG
help
Say Y here to be able to turn CPUs off and on. CPUs
can be controlled through /sys/devices/system/cpu/cpu#.
Say N if you want to disable CPU hotplug.
+config SCHED_SMT
+ def_bool n
+
+# Some NUMA nodes have memory ranges that span
+# other nodes. Even though a pfn is valid and
+# between a node's start and end pfns, it may not
+# reside on that node. See memmap_init_zone()
+# for details. <- They meant memory holes!
+config NODES_SPAN_OTHER_NODES
+ def_bool NUMA
+
+config NUMA
+ bool "NUMA support"
+ depends on SMP && 64BIT && SCHED_TOPOLOGY
+ default n
+ help
+ Enable NUMA support
+
+ This option adds NUMA support to the kernel.
+
+ An operation mode can be selected by appending
+ numa=<method> to the kernel command line.
+
+ The default behaviour is identical to appending numa=plain to
+ the command line. This will create just one node with all
+ available memory and all CPUs in it.
+
+config NODES_SHIFT
+ int "Maximum NUMA nodes (as a power of 2)"
+ range 1 10
+ depends on NUMA
+ default "4"
+ help
+ Specify the maximum number of NUMA nodes available on the target
+ system. Increases memory reserved to accommodate various tables.
+
+menu "Select NUMA modes"
+ depends on NUMA
+
+config NUMA_EMU
+ bool "NUMA emulation"
+ default y
+ help
+ Numa emulation mode will split the available system memory into
+ equal chunks which then are distributed over the configured number
+ of nodes in a round-robin manner.
+
+ The number of fake nodes is limited by the number of available memory
+ chunks (i.e. memory size / fake size) and the number of supported
+ nodes in the kernel.
+
+ The CPUs are assigned to the nodes in a way that partially respects
+ the original machine topology (if supported by the machine).
+ Fair distribution of the CPUs is not guaranteed.
+
+config EMU_SIZE
+ hex "NUMA emulation memory chunk size"
+ default 0x10000000
+ range 0x400000 0x100000000
+ depends on NUMA_EMU
+ help
+ Select the default size by which the memory is chopped and then
+ assigned to emulated NUMA nodes.
+
+ This can be overridden by specifying
+
+ emu_size=<n>
+
+ on the kernel command line where also suffixes K, M, G, and T are
+ supported.
+
+endmenu
+
config SCHED_MC
def_bool n
config SCHED_BOOK
+ def_bool n
+
+config SCHED_TOPOLOGY
def_bool y
- prompt "Book scheduler support"
+ prompt "Topology scheduler support"
depends on SMP
+ select SCHED_SMT
select SCHED_MC
+ select SCHED_BOOK
help
- Book scheduler support improves the CPU scheduler's decision making
- when dealing with machines that have several books.
+ Topology scheduler support improves the CPU scheduler's decision
+ making when dealing with machines that have multi-threading,
+ multiple cores or multiple books.
source kernel/Kconfig.preempt
-config MATHEMU
- def_bool y
- prompt "IEEE FPU emulation"
- depends on MARCH_G5
- help
- This option is required for IEEE compliant floating point arithmetic
- on older ESA/390 machines. Say Y unless you know your machine doesn't
- need this.
-
source kernel/Kconfig.hz
endmenu
def_bool y
select SPARSEMEM_VMEMMAP_ENABLE
select SPARSEMEM_VMEMMAP
- select SPARSEMEM_STATIC if !64BIT
config ARCH_SPARSEMEM_DEFAULT
def_bool y
config ARCH_ENABLE_MEMORY_HOTREMOVE
def_bool y
+config ARCH_ENABLE_SPLIT_PMD_PTLOCK
+ def_bool y
+
config FORCE_MAX_ZONEORDER
int
default "9"
menuconfig PCI
bool "PCI support"
- default n
- depends on 64BIT
- select ARCH_SUPPORTS_MSI
+ select HAVE_DMA_ATTRS
select PCI_MSI
+ select IOMMU_SUPPORT
help
Enable PCI support.
This allows you to specify the maximum number of PCI functions which
this kernel will support.
+config PCI_NR_MSI
+ int "Maximum number of MSI interrupts (64-32768)"
+ range 64 32768
+ default "256"
+ help
+ This defines the number of virtual interrupts the kernel will
+ provide for MSI interrupts. If you configure your system to have
+ too few drivers will fail to allocate MSI interrupts for all
+ PCI devices.
+
source "drivers/pci/Kconfig"
source "drivers/pci/pcie/Kconfig"
source "drivers/pci/hotplug/Kconfig"
config NEED_SG_DMA_LENGTH
def_bool PCI
-config HAVE_DMA_ATTRS
- def_bool PCI
-
config NEED_DMA_MAP_STATE
def_bool PCI
config SCM_BUS
def_bool y
- depends on 64BIT
prompt "SCM bus driver"
help
Bus driver for Storage Class Memory.
config CRASH_DUMP
bool "kernel crash dumps"
- depends on 64BIT && SMP
+ depends on SMP
select KEXEC
help
Generate crash dump after being started by kexec.
Crash dump kernels are loaded in the main kernel with kexec-tools
into a specially reserved region and then later executed after
a crash by kdump/kexec.
- For more details see Documentation/kdump/kdump.txt
-
-config ZFCPDUMP
- def_bool n
- prompt "zfcpdump support"
- select SMP
- help
- Select this option if you want to build an zfcpdump enabled kernel.
Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
+ This option also enables s390 zfcpdump.
+ See also <file:Documentation/s390/zfcpdump.txt>
endmenu
menu "Power Management"
config ARCH_HIBERNATION_POSSIBLE
- def_bool y if 64BIT
+ def_bool y
source "kernel/power/Kconfig"
config S390_GUEST
def_bool y
prompt "s390 support for virtio devices"
- depends on 64BIT
+ select TTY
select VIRTUALIZATION
select VIRTIO
select VIRTIO_CONSOLE
projects / firefly-linux-kernel-4.4.55.git / blobdiff