Say no to build a 32-bit kernel - formerly known as i386
config X86_32
- def_bool !64BIT
+ def_bool y
+ depends on !64BIT
select CLKSRC_I8253
config X86_64
- def_bool 64BIT
+ def_bool y
+ depends on 64BIT
+ select X86_DEV_DMA_OPS
### Arch settings
config X86
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_WANT_FRAME_POINTERS
select HAVE_DMA_ATTRS
+ select HAVE_DMA_CONTIGUOUS if !SWIOTLB
select HAVE_KRETPROBES
select HAVE_OPTPROBES
select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_FENTRY if X86_64
select HAVE_C_RECORDMCOUNT
select HAVE_DYNAMIC_FTRACE
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_GRAPH_FP_TEST
select HAVE_FUNCTION_TRACE_MCOUNT_TEST
- select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_KVM
select HAVE_ARCH_KGDB
select HAVE_MIXED_BREAKPOINTS_REGS
select PERF_EVENTS
select HAVE_PERF_EVENTS_NMI
+ select HAVE_PERF_REGS
+ select HAVE_PERF_USER_STACK_DUMP
select ANON_INODES
+ select HAVE_ALIGNED_STRUCT_PAGE if SLUB && !M386
+ select HAVE_CMPXCHG_LOCAL if !M386
+ select HAVE_CMPXCHG_DOUBLE
select HAVE_ARCH_KMEMCHECK
select HAVE_USER_RETURN_NOTIFIER
+ select ARCH_BINFMT_ELF_RANDOMIZE_PIE
select HAVE_ARCH_JUMP_LABEL
select HAVE_TEXT_POKE_SMP
select HAVE_GENERIC_HARDIRQS
- select HAVE_SPARSE_IRQ
+ select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select SPARSE_IRQ
select GENERIC_FIND_FIRST_BIT
select GENERIC_IRQ_PROBE
select GENERIC_CLOCKEVENTS_MIN_ADJUST
select IRQ_FORCED_THREADING
select USE_GENERIC_SMP_HELPERS if SMP
- select HAVE_BPF_JIT if (X86_64 && NET)
+ select HAVE_BPF_JIT if X86_64
select CLKEVT_I8253
select ARCH_HAVE_NMI_SAFE_CMPXCHG
+ select GENERIC_IOMAP
+ select DCACHE_WORD_ACCESS
+ select GENERIC_SMP_IDLE_THREAD
+ select ARCH_WANT_IPC_PARSE_VERSION if X86_32
+ select HAVE_ARCH_SECCOMP_FILTER
+ select BUILDTIME_EXTABLE_SORT
+ select GENERIC_CMOS_UPDATE
+ select CLOCKSOURCE_WATCHDOG
+ select GENERIC_CLOCKEVENTS
+ select ARCH_CLOCKSOURCE_DATA if X86_64
+ select GENERIC_CLOCKEVENTS_BROADCAST if X86_64 || (X86_32 && X86_LOCAL_APIC)
+ select GENERIC_TIME_VSYSCALL if X86_64
+ select KTIME_SCALAR if X86_32
+ select GENERIC_STRNCPY_FROM_USER
+ select GENERIC_STRNLEN_USER
+ select HAVE_RCU_USER_QS if X86_64
+ select HAVE_IRQ_TIME_ACCOUNTING
config INSTRUCTION_DECODER
- def_bool (KPROBES || PERF_EVENTS)
+ def_bool y
+ depends on KPROBES || PERF_EVENTS || UPROBES
config OUTPUT_FORMAT
string
default "arch/x86/configs/i386_defconfig" if X86_32
default "arch/x86/configs/x86_64_defconfig" if X86_64
-config GENERIC_CMOS_UPDATE
- def_bool y
-
-config CLOCKSOURCE_WATCHDOG
- def_bool y
-
-config GENERIC_CLOCKEVENTS
- def_bool y
-
-config ARCH_CLOCKSOURCE_DATA
- def_bool y
- depends on X86_64
-
-config GENERIC_CLOCKEVENTS_BROADCAST
- def_bool y
- depends on X86_64 || (X86_32 && X86_LOCAL_APIC)
-
config LOCKDEP_SUPPORT
def_bool y
config MMU
def_bool y
-config ZONE_DMA
- bool "DMA memory allocation support" if EXPERT
- default y
- help
- DMA memory allocation support allows devices with less than 32-bit
- addressing to allocate within the first 16MB of address space.
- Disable if no such devices will be used.
-
- If unsure, say Y.
-
config SBUS
bool
config NEED_DMA_MAP_STATE
- def_bool (X86_64 || INTEL_IOMMU || DMA_API_DEBUG)
+ def_bool y
+ depends on X86_64 || INTEL_IOMMU || DMA_API_DEBUG
config NEED_SG_DMA_LENGTH
def_bool y
config GENERIC_ISA_DMA
- def_bool ISA_DMA_API
-
-config GENERIC_IOMAP
def_bool y
+ depends on ISA_DMA_API
config GENERIC_BUG
def_bool y
bool
config ARCH_MAY_HAVE_PC_FDC
- def_bool ISA_DMA_API
+ def_bool y
+ depends on ISA_DMA_API
config RWSEM_GENERIC_SPINLOCK
- def_bool !X86_XADD
+ def_bool y
+ depends on !X86_XADD
config RWSEM_XCHGADD_ALGORITHM
- def_bool X86_XADD
-
-config ARCH_HAS_CPU_IDLE_WAIT
def_bool y
+ depends on X86_XADD
config GENERIC_CALIBRATE_DELAY
def_bool y
-config GENERIC_TIME_VSYSCALL
- bool
- default X86_64
-
config ARCH_HAS_CPU_RELAX
def_bool y
config ARCH_HAS_CACHE_LINE_SIZE
def_bool y
+config ARCH_HAS_CPU_AUTOPROBE
+ def_bool y
+
config HAVE_SETUP_PER_CPU_AREA
def_bool y
bool
default X86_64
-config ARCH_POPULATES_NODE_MAP
- def_bool y
-
config AUDIT_ARCH
bool
default X86_64
default "-fcall-saved-ecx -fcall-saved-edx" if X86_32
default "-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11" if X86_64
-config KTIME_SCALAR
- def_bool X86_32
-
config ARCH_CPU_PROBE_RELEASE
def_bool y
depends on HOTPLUG_CPU
+config ARCH_SUPPORTS_UPROBES
+ def_bool y
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
menu "Processor type and features"
-source "kernel/time/Kconfig"
+config ZONE_DMA
+ bool "DMA memory allocation support" if EXPERT
+ default y
+ help
+ DMA memory allocation support allows devices with less than 32-bit
+ addressing to allocate within the first 16MB of address space.
+ Disable if no such devices will be used.
+
+ If unsure, say Y.
config SMP
bool "Symmetric multi-processing support"
NUMAQ (IBM/Sequent)
RDC R-321x SoC
SGI 320/540 (Visual Workstation)
+ STA2X11-based (e.g. Northville)
Summit/EXA (IBM x440)
Unisys ES7000 IA32 series
Moorestown MID devices
If you enable this option then you'll be able to select support
for the following (non-PC) 64 bit x86 platforms:
+ Numascale NumaChip
ScaleMP vSMP
SGI Ultraviolet
endif
# This is an alphabetically sorted list of 64 bit extended platforms
# Please maintain the alphabetic order if and when there are additions
+config X86_NUMACHIP
+ bool "Numascale NumaChip"
+ depends on X86_64
+ depends on X86_EXTENDED_PLATFORM
+ depends on NUMA
+ depends on SMP
+ depends on X86_X2APIC
+ ---help---
+ Adds support for Numascale NumaChip large-SMP systems. Needed to
+ enable more than ~168 cores.
+ If you don't have one of these, you should say N here.
config X86_VSMP
bool "ScaleMP vSMP"
select PARAVIRT
depends on X86_64 && PCI
depends on X86_EXTENDED_PLATFORM
+ depends on SMP
---help---
Support for ScaleMP vSMP systems. Say 'Y' here if this kernel is
supposed to run on these EM64T-based machines. Only choose this option
select X86_REBOOTFIXUPS
select OF
select OF_EARLY_FLATTREE
+ select IRQ_DOMAIN
---help---
Select for the Intel CE media processor (CE4100) SOC.
This option compiles in support for the CE4100 SOC for settop
boxes and media devices.
-config X86_INTEL_MID
+config X86_WANT_INTEL_MID
bool "Intel MID platform support"
depends on X86_32
depends on X86_EXTENDED_PLATFORM
systems which do not have the PCI legacy interfaces (Moorestown,
Medfield). If you are building for a PC class system say N here.
-if X86_INTEL_MID
+if X86_WANT_INTEL_MID
-config X86_MRST
- bool "Moorestown MID platform"
+config X86_INTEL_MID
+ bool
+
+config X86_MDFLD
+ bool "Medfield MID platform"
depends on PCI
depends on PCI_GOANY
depends on X86_IO_APIC
+ select X86_INTEL_MID
+ select SFI
+ select DW_APB_TIMER
select APB_TIMER
select I2C
select SPI
select INTEL_SCU_IPC
select X86_PLATFORM_DEVICES
+ select MFD_INTEL_MSIC
---help---
- Moorestown is Intel's Low Power Intel Architecture (LPIA) based Moblin
- Internet Device(MID) platform. Moorestown consists of two chips:
- Lincroft (CPU core, graphics, and memory controller) and Langwell IOH.
- Unlike standard x86 PCs, Moorestown does not have many legacy devices
- nor standard legacy replacement devices/features. e.g. Moorestown does
+ Medfield is Intel's Low Power Intel Architecture (LPIA) based Moblin
+ Internet Device(MID) platform.
+ Unlike standard x86 PCs, Medfield does not have many legacy devices
+ nor standard legacy replacement devices/features. e.g. Medfield does
not contain i8259, i8254, HPET, legacy BIOS, most of the io ports.
endif
depends on X86_32 && SMP
depends on X86_EXTENDED_PLATFORM
---help---
- This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default
- subarchitectures. It is intended for a generic binary kernel.
- if you select them all, kernel will probe it one by one. and will
- fallback to default.
+ This option compiles in the NUMAQ, Summit, bigsmp, ES7000,
+ STA2X11, default subarchitectures. It is intended for a generic
+ binary kernel. If you select them all, kernel will probe it
+ one by one and will fallback to default.
# Alphabetically sorted list of Non standard 32 bit platforms
A kernel compiled for the Visual Workstation will run on general
PCs as well. See <file:Documentation/sgi-visws.txt> for details.
+config STA2X11
+ bool "STA2X11 Companion Chip Support"
+ depends on X86_32_NON_STANDARD && PCI
+ select X86_DEV_DMA_OPS
+ select X86_DMA_REMAP
+ select SWIOTLB
+ select MFD_STA2X11
+ select ARCH_REQUIRE_GPIOLIB
+ default n
+ ---help---
+ This adds support for boards based on the STA2X11 IO-Hub,
+ a.k.a. "ConneXt". The chip is used in place of the standard
+ PC chipset, so all "standard" peripherals are missing. If this
+ option is selected the kernel will still be able to boot on
+ standard PC machines.
+
config X86_SUMMIT
bool "Summit/EXA (IBM x440)"
depends on X86_32_NON_STANDARD
config X86_CYCLONE_TIMER
def_bool y
- depends on X86_32_NON_STANDARD
+ depends on X86_SUMMIT
source "arch/x86/Kconfig.cpu"
depends on HPET_TIMER && (RTC=y || RTC=m || RTC_DRV_CMOS=m || RTC_DRV_CMOS=y)
config APB_TIMER
- def_bool y if MRST
- prompt "Langwell APB Timer Support" if X86_MRST
+ def_bool y if X86_INTEL_MID
+ prompt "Intel MID APB Timer Support" if X86_INTEL_MID
select DW_APB_TIMER
+ depends on X86_INTEL_MID && SFI
help
APB timer is the replacement for 8254, HPET on X86 MID platforms.
The APBT provides a stable time base on SMP
def_bool y if X86_64
---help---
Support for software bounce buffers used on x86-64 systems
- which don't have a hardware IOMMU (e.g. the current generation
- of Intel's x86-64 CPUs). Using this PCI devices which can only
- access 32-bits of memory can be used on systems with more than
- 3 GB of memory. If unsure, say Y.
+ which don't have a hardware IOMMU. Using this PCI devices
+ which can only access 32-bits of memory can be used on systems
+ with more than 3 GB of memory.
+ If unsure, say Y.
config IOMMU_HELPER
- def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
+ def_bool y
+ depends on CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU
config MAXSMP
bool "Enable Maximum number of SMP Processors and NUMA Nodes"
making when dealing with multi-core CPU chips at a cost of slightly
increased overhead in some places. If unsure say N here.
-config IRQ_TIME_ACCOUNTING
- bool "Fine granularity task level IRQ time accounting"
- default n
- ---help---
- Select this option to enable fine granularity task irq time
- accounting. This is done by reading a timestamp on each
- transitions between softirq and hardirq state, so there can be a
- small performance impact.
-
- If in doubt, say N here.
-
source "kernel/Kconfig.preempt"
config X86_UP_APIC
config X86_MCE
bool "Machine Check / overheating reporting"
+ default y
---help---
Machine Check support allows the processor to notify the
kernel if it detects a problem (e.g. overheating, data corruption).
consumes more pagetable space per process.
config ARCH_PHYS_ADDR_T_64BIT
- def_bool X86_64 || X86_PAE
+ def_bool y
+ depends on X86_64 || X86_PAE
config ARCH_DMA_ADDR_T_64BIT
- def_bool X86_64 || HIGHMEM64G
+ def_bool y
+ depends on X86_64 || HIGHMEM64G
config DIRECT_GBPAGES
bool "Enable 1GB pages for kernel pagetables" if EXPERT
Specify the maximum number of NUMA Nodes available on the target
system. Increases memory reserved to accommodate various tables.
-config HAVE_ARCH_BOOTMEM
- def_bool y
- depends on X86_32 && NUMA
-
config HAVE_ARCH_ALLOC_REMAP
def_bool y
depends on X86_32 && NUMA
depends on ARCH_SPARSEMEM_ENABLE
config ARCH_MEMORY_PROBE
- def_bool X86_64
- depends on MEMORY_HOTPLUG
+ def_bool y
+ depends on X86_64 && MEMORY_HOTPLUG
config ARCH_PROC_KCORE_TEXT
def_bool y
resultant kernel should continue to boot on existing non-EFI
platforms.
+config EFI_STUB
+ bool "EFI stub support"
+ depends on EFI
+ ---help---
+ This kernel feature allows a bzImage to be loaded directly
+ by EFI firmware without the use of a bootloader.
+
+ See Documentation/x86/efi-stub.txt for more information.
+
config SECCOMP
def_bool y
prompt "Enable seccomp to safely compute untrusted bytecode"
If unsure, say Y. Only embedded should say N here.
config CC_STACKPROTECTOR
- bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
+ bool "Enable -fstack-protector buffer overflow detection"
---help---
This option turns on the -fstack-protector GCC feature. This
feature puts, at the beginning of functions, a canary value on
config X86_APM_BOOT
def_bool y
- depends on APM || APM_MODULE
+ depends on APM
menuconfig APM
tristate "APM (Advanced Power Management) BIOS support"
config PCI_CNB20LE_QUIRK
bool "Read CNB20LE Host Bridge Windows" if EXPERT
- default n
depends on PCI && EXPERIMENTAL
help
Read the PCI windows out of the CNB20LE host bridge. This allows
source "drivers/eisa/Kconfig"
-config MCA
- bool "MCA support"
- ---help---
- MicroChannel Architecture is found in some IBM PS/2 machines and
- laptops. It is a bus system similar to PCI or ISA. See
- <file:Documentation/mca.txt> (and especially the web page given
- there) before attempting to build an MCA bus kernel.
-
-source "drivers/mca/Kconfig"
-
config SCx200
tristate "NatSemi SCx200 support"
---help---
select GPIOLIB
select OF
select OF_PROMTREE
+ select IRQ_DOMAIN
---help---
Add support for detecting the unique features of the OLPC
XO hardware.
Note: You have to set alix.force=1 for boards with Award BIOS.
+config NET5501
+ bool "Soekris Engineering net5501 System Support (LEDS, GPIO, etc)"
+ select GPIOLIB
+ ---help---
+ This option enables system support for the Soekris Engineering net5501.
+
+config GEOS
+ bool "Traverse Technologies GEOS System Support (LEDS, GPIO, etc)"
+ select GPIOLIB
+ depends on DMI
+ ---help---
+ This option enables system support for the Traverse Technologies GEOS.
+
endif # X86_32
config AMD_NB
depends on X86_64
select COMPAT_BINFMT_ELF
---help---
- Include code to run 32-bit programs under a 64-bit kernel. You should
- likely turn this on, unless you're 100% sure that you don't have any
- 32-bit programs left.
+ Include code to run legacy 32-bit programs under a
+ 64-bit kernel. You should likely turn this on, unless you're
+ 100% sure that you don't have any 32-bit programs left.
config IA32_AOUT
tristate "IA32 a.out support"
---help---
Support old a.out binaries in the 32bit emulation.
+config X86_X32
+ bool "x32 ABI for 64-bit mode (EXPERIMENTAL)"
+ depends on X86_64 && IA32_EMULATION && EXPERIMENTAL
+ ---help---
+ Include code to run binaries for the x32 native 32-bit ABI
+ for 64-bit processors. An x32 process gets access to the
+ full 64-bit register file and wide data path while leaving
+ pointers at 32 bits for smaller memory footprint.
+
+ You will need a recent binutils (2.22 or later) with
+ elf32_x86_64 support enabled to compile a kernel with this
+ option set.
+
config COMPAT
def_bool y
- depends on IA32_EMULATION
+ depends on IA32_EMULATION || X86_X32
+ select ARCH_WANT_OLD_COMPAT_IPC
+if COMPAT
config COMPAT_FOR_U64_ALIGNMENT
- def_bool COMPAT
- depends on X86_64
+ def_bool y
config SYSVIPC_COMPAT
def_bool y
- depends on COMPAT && SYSVIPC
+ depends on SYSVIPC
config KEYS_COMPAT
- bool
- depends on COMPAT && KEYS
- default y
+ def_bool y
+ depends on KEYS
+endif
endmenu
bool
select STOP_MACHINE if SMP
+config X86_DEV_DMA_OPS
+ bool
+ depends on X86_64 || STA2X11
+
+config X86_DMA_REMAP
+ bool
+ depends on STA2X11
+
source "net/Kconfig"
source "drivers/Kconfig"