linux/arch/ia64/Kconfig
Linus Torvalds 1cd04d293c This is the bulk of GPIO changes for the v4.8 kernel cycle.
Core changes:
 
 - The big item is of course the completion of the character
   device ABI. It has now replaced and surpassed the former
   unmaintainable sysfs ABI: we can now hammer (bitbang)
   individual lines or sets of lines and read individual lines
   or sets of lines from userspace, and we can also register
   to listen to GPIO events from userspace. As a tie-in we
   have two new tools in tools/gpio: gpio-hammer and
   gpio-event-mon that illustrate the proper use of the new
   ABI. As someone said: the wild west days of GPIO are now
   over.
 
 - Continued to remove the pointless
   ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB Kconfig symbols.
   I'm patching hexagon, openrisc, powerpc, sh, unicore,
   ia64 and microblaze. These are either ACKed by their
   maintainers or patched anyways after a grace period and
   no response from maintainers. Some archs (ARM) come in from
   their trees, and others (x86) are still not fixed, so I
   might send a second pull request to root it out later in
   this merge window, or just defer to v4.9.
 
 - The GPIO tools are moved to the tools build system.
 
 New drivers:
 
 - New driver for the MAX77620/MAX20024.
 
 - New driver for the Intel Merrifield.
 
 - Enabled PCA953x for the TI PCA9536.
 
 - Enabled PCA953x for the Intel Edison.
 
 - Enabled R8A7792 in the RCAR driver.
 
 Driver improvements:
 
 - The STMPE and F7188x now supports the .get_direction()
   callback.
 
 - The Xilinx driver supports setting multiple lines at
   once.
 
 - ACPI support for the Vulcan GPIO controller.
 
 - The MMIO GPIO driver supports device tree probing.
 
 - The Acer One 10 is supported through the _DEP ACPI
   attribute.
 
 Cleanups:
 
 - A major cleanup of the OF/DT support code. It is way
   easier to read and understand now, probably this improves
   performance too.
 
 - Drop a few redundant .owner assignments.
 
 - Remove CLPS711x boardfile support: we are 100% DT.
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Merge tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.8 kernel cycle.  The big
  news is the completion of the chardev ABI which I'm very happy about
  and apart from that it's an ordinary, quite busy cycle.  The details
  are below.

  The patches are tested in linux-next for some time, patches to other
  subsystem mostly have ACKs.

  I got overly ambitious with configureing lines as input for IRQ lines
  but it turns out that some controllers have their interrupt-enable and
  input-enabling in orthogonal settings so the assumption that all IRQ
  lines are input lines does not hold.  Oh well, revert and back to the
  drawing board with that.

  Core changes:

   - The big item is of course the completion of the character device
     ABI.  It has now replaced and surpassed the former unmaintainable
     sysfs ABI: we can now hammer (bitbang) individual lines or sets of
     lines and read individual lines or sets of lines from userspace,
     and we can also register to listen to GPIO events from userspace.

     As a tie-in we have two new tools in tools/gpio: gpio-hammer and
     gpio-event-mon that illustrate the proper use of the new ABI.  As
     someone said: the wild west days of GPIO are now over.

   - Continued to remove the pointless ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
     Kconfig symbols.  I'm patching hexagon, openrisc, powerpc, sh,
     unicore, ia64 and microblaze.  These are either ACKed by their
     maintainers or patched anyways after a grace period and no response
     from maintainers.

     Some archs (ARM) come in from their trees, and others (x86) are
     still not fixed, so I might send a second pull request to root it
     out later in this merge window, or just defer to v4.9.

   - The GPIO tools are moved to the tools build system.

  New drivers:

   - New driver for the MAX77620/MAX20024.

   - New driver for the Intel Merrifield.

   - Enabled PCA953x for the TI PCA9536.

   - Enabled PCA953x for the Intel Edison.

   - Enabled R8A7792 in the RCAR driver.

  Driver improvements:

   - The STMPE and F7188x now supports the .get_direction() callback.

   - The Xilinx driver supports setting multiple lines at once.

   - ACPI support for the Vulcan GPIO controller.

   - The MMIO GPIO driver supports device tree probing.

   - The Acer One 10 is supported through the _DEP ACPI attribute.

  Cleanups:

   - A major cleanup of the OF/DT support code.  It is way easier to
     read and understand now, probably this improves performance too.

   - Drop a few redundant .owner assignments.

   - Remove CLPS711x boardfile support: we are 100% DT"

* tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (67 commits)
  MAINTAINERS: Add INTEL MERRIFIELD GPIO entry
  gpio: dwapb: add missing fwnode_handle_put() in dwapb_gpio_get_pdata()
  gpio: merrifield: Protect irq_ack() and gpio_set() by lock
  gpio: merrifield: Introduce GPIO driver to support Merrifield
  gpio: intel-mid: Make it depend to X86_INTEL_MID
  gpio: intel-mid: Sort header block alphabetically
  gpio: intel-mid: Remove potentially harmful code
  gpio: rcar: add R8A7792 support
  gpiolib: remove duplicated include from gpiolib.c
  Revert "gpio: convince line to become input in irq helper"
  gpiolib: of_find_gpio(): Don't discard errors
  gpio: of: Allow overriding the device node
  gpio: free handles in fringe cases
  gpio: tps65218: Add platform_device_id table
  gpio: max77620: get gpio value based on direction
  gpio: lynxpoint: avoid potential warning on error path
  tools/gpio: add install section
  tools/gpio: move to tools buildsystem
  gpio: intel-mid: switch to devm_gpiochip_add_data()
  gpio: 74x164: Use spi_write() helper instead of open coding
  ...
2016-07-26 19:16:01 -07:00

612 lines
15 KiB
Plaintext

config PGTABLE_LEVELS
int "Page Table Levels" if !IA64_PAGE_SIZE_64KB
range 3 4 if !IA64_PAGE_SIZE_64KB
default 3
source "init/Kconfig"
source "kernel/Kconfig.freezer"
menu "Processor type and features"
config IA64
bool
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select PCI if (!IA64_HP_SIM)
select ACPI if (!IA64_HP_SIM)
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_EXIT_THREAD
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
select HAVE_FUNCTION_TRACER
select TTY
select HAVE_ARCH_TRACEHOOK
select HAVE_DMA_API_DEBUG
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_VIRT_CPU_ACCOUNTING
select ARCH_HAS_SG_CHAIN
select VIRT_TO_BUS
select ARCH_DISCARD_MEMBLOCK
select GENERIC_IRQ_PROBE
select GENERIC_PENDING_IRQ if SMP
select GENERIC_IRQ_SHOW
select GENERIC_IRQ_LEGACY
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD
select ARCH_INIT_TASK
select ARCH_TASK_STRUCT_ALLOCATOR
select ARCH_THREAD_STACK_ALLOCATOR
select ARCH_CLOCKSOURCE_DATA
select GENERIC_TIME_VSYSCALL_OLD
select SYSCTL_ARCH_UNALIGN_NO_WARN
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
select ARCH_USE_CMPXCHG_LOCKREF
select HAVE_ARCH_AUDITSYSCALL
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
the 32-bit X86 line. The IA-64 Linux project has a home
page at <http://www.linuxia64.org/> and a mailing list at
<linux-ia64@vger.kernel.org>.
config 64BIT
bool
select ATA_NONSTANDARD if ATA
default y
config ZONE_DMA
def_bool y
depends on !IA64_SGI_SN2
config QUICKLIST
bool
default y
config MMU
bool
default y
config ARCH_DMA_ADDR_T_64BIT
def_bool y
config NEED_DMA_MAP_STATE
def_bool y
config NEED_SG_DMA_LENGTH
def_bool y
config SWIOTLB
bool
config STACKTRACE_SUPPORT
def_bool y
config GENERIC_LOCKBREAK
def_bool n
config RWSEM_XCHGADD_ALGORITHM
bool
default y
config HUGETLB_PAGE_SIZE_VARIABLE
bool
depends on HUGETLB_PAGE
default y
config GENERIC_CALIBRATE_DELAY
bool
default y
config HAVE_SETUP_PER_CPU_AREA
def_bool y
config DMI
bool
default y
select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
config EFI
bool
select UCS2_STRING
default y
config SCHED_OMIT_FRAME_POINTER
bool
default y
config IA64_UNCACHED_ALLOCATOR
bool
select GENERIC_ALLOCATOR
config ARCH_USES_PG_UNCACHED
def_bool y
depends on IA64_UNCACHED_ALLOCATOR
config AUDIT_ARCH
bool
default y
choice
prompt "System type"
default IA64_GENERIC
config IA64_GENERIC
bool "generic"
select NUMA
select ACPI_NUMA
select SWIOTLB
select PCI_MSI
help
This selects the system type of your hardware. A "generic" kernel
will run on any supported IA-64 system. However, if you configure
a kernel for your specific system, it will be faster and smaller.
generic For any supported IA-64 system
DIG-compliant For DIG ("Developer's Interface Guide") compliant systems
DIG+Intel+IOMMU For DIG systems with Intel IOMMU
HP-zx1/sx1000 For HP systems
HP-zx1/sx1000+swiotlb For HP systems with (broken) DMA-constrained devices.
SGI-SN2 For SGI Altix systems
SGI-UV For SGI UV systems
Ski-simulator For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
If you don't know what to do, choose "generic".
config IA64_DIG
bool "DIG-compliant"
select SWIOTLB
config IA64_DIG_VTD
bool "DIG+Intel+IOMMU"
select INTEL_IOMMU
select PCI_MSI
config IA64_HP_ZX1
bool "HP-zx1/sx1000"
help
Build a kernel that runs on HP zx1 and sx1000 systems. This adds
support for the HP I/O MMU.
config IA64_HP_ZX1_SWIOTLB
bool "HP-zx1/sx1000 with software I/O TLB"
select SWIOTLB
help
Build a kernel that runs on HP zx1 and sx1000 systems even when they
have broken PCI devices which cannot DMA to full 32 bits. Apart
from support for the HP I/O MMU, this includes support for the software
I/O TLB, which allows supporting the broken devices at the expense of
wasting some kernel memory (about 2MB by default).
config IA64_SGI_SN2
bool "SGI-SN2"
select NUMA
select ACPI_NUMA
help
Selecting this option will optimize the kernel for use on sn2 based
systems, but the resulting kernel binary will not run on other
types of ia64 systems. If you have an SGI Altix system, it's safe
to select this option. If in doubt, select ia64 generic support
instead.
config IA64_SGI_UV
bool "SGI-UV"
select NUMA
select ACPI_NUMA
select SWIOTLB
help
Selecting this option will optimize the kernel for use on UV based
systems, but the resulting kernel binary will not run on other
types of ia64 systems. If you have an SGI UV system, it's safe
to select this option. If in doubt, select ia64 generic support
instead.
config IA64_HP_SIM
bool "Ski-simulator"
select SWIOTLB
depends on !PM
endchoice
choice
prompt "Processor type"
default ITANIUM
config ITANIUM
bool "Itanium"
help
Select your IA-64 processor type. The default is Itanium.
This choice is safe for all IA-64 systems, but may not perform
optimally on systems with, say, Itanium 2 or newer processors.
config MCKINLEY
bool "Itanium 2"
help
Select this to configure for an Itanium 2 (McKinley) processor.
endchoice
choice
prompt "Kernel page size"
default IA64_PAGE_SIZE_16KB
config IA64_PAGE_SIZE_4KB
bool "4KB"
help
This lets you select the page size of the kernel. For best IA-64
performance, a page size of 8KB or 16KB is recommended. For best
IA-32 compatibility, a page size of 4KB should be selected (the vast
majority of IA-32 binaries work perfectly fine with a larger page
size). For Itanium 2 or newer systems, a page size of 64KB can also
be selected.
4KB For best IA-32 compatibility
8KB For best IA-64 performance
16KB For best IA-64 performance
64KB Requires Itanium 2 or newer processor.
If you don't know what to do, choose 16KB.
config IA64_PAGE_SIZE_8KB
bool "8KB"
config IA64_PAGE_SIZE_16KB
bool "16KB"
config IA64_PAGE_SIZE_64KB
depends on !ITANIUM
bool "64KB"
endchoice
if IA64_HP_SIM
config HZ
default 32
endif
if !IA64_HP_SIM
source kernel/Kconfig.hz
endif
config IA64_BRL_EMU
bool
depends on ITANIUM
default y
# align cache-sensitive data to 128 bytes
config IA64_L1_CACHE_SHIFT
int
default "7" if MCKINLEY
default "6" if ITANIUM
config IA64_CYCLONE
bool "Cyclone (EXA) Time Source support"
help
Say Y here to enable support for IBM EXA Cyclone time source.
If you're unsure, answer N.
config IOSAPIC
bool
depends on !IA64_HP_SIM
default y
config FORCE_MAX_ZONEORDER
int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
range 11 17 if !HUGETLB_PAGE
default "17" if HUGETLB_PAGE
default "11"
config SMP
bool "Symmetric multi-processing support"
help
This enables support for systems with more than one CPU. If you have
a system with only one CPU, 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
systems, but will use only one CPU of a multiprocessor system. If
you say Y here, the kernel will run on many, but not all,
single processor systems. On a single processor system, the kernel
will run faster if you say N here.
See also the SMP-HOWTO available at
<http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
config NR_CPUS
int "Maximum number of CPUs (2-4096)"
range 2 4096
depends on SMP
default "4096"
help
You should set this to the number of CPUs in your system, but
keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
only use 2 CPUs on a >2 CPU system. Setting this to a value larger
than 64 will cause the use of a CPU mask array, causing a small
performance hit.
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"
depends on SMP
default n
---help---
Say Y here to experiment with turning CPUs off and on. CPUs
can be controlled through /sys/devices/system/cpu/cpu#.
Say N if you want to disable CPU hotplug.
config ARCH_ENABLE_MEMORY_HOTPLUG
def_bool y
config ARCH_ENABLE_MEMORY_HOTREMOVE
def_bool y
config SCHED_SMT
bool "SMT scheduler support"
depends on SMP
help
Improves the CPU scheduler's decision making when dealing with
Intel IA64 chips with MultiThreading at a cost of slightly increased
overhead in some places. If unsure say N here.
config PERMIT_BSP_REMOVE
bool "Support removal of Bootstrap Processor"
depends on HOTPLUG_CPU
default n
---help---
Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
support.
config FORCE_CPEI_RETARGET
bool "Force assumption that CPEI can be re-targeted"
depends on PERMIT_BSP_REMOVE
default n
---help---
Say Y if you need to force the assumption that CPEI can be re-targeted to
any cpu in the system. This hint is available via ACPI 3.0 specifications.
Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
This option it useful to enable this feature on older BIOS's as well.
You can also enable this by using boot command line option force_cpei=1.
source "kernel/Kconfig.preempt"
source "mm/Kconfig"
config ARCH_SELECT_MEMORY_MODEL
def_bool y
config ARCH_DISCONTIGMEM_ENABLE
def_bool y
help
Say Y to support efficient handling of discontiguous physical memory,
for architectures which are either NUMA (Non-Uniform Memory Access)
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
config ARCH_FLATMEM_ENABLE
def_bool y
config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on ARCH_DISCONTIGMEM_ENABLE
select SPARSEMEM_VMEMMAP_ENABLE
config ARCH_DISCONTIGMEM_DEFAULT
def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
depends on ARCH_DISCONTIGMEM_ENABLE
config NUMA
bool "NUMA support"
depends on !IA64_HP_SIM && !FLATMEM
default y if IA64_SGI_SN2
select ACPI_NUMA if ACPI
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
server systems. If in doubt, say N.
config NODES_SHIFT
int "Max num nodes shift(3-10)"
range 3 10
default "10"
depends on NEED_MULTIPLE_NODES
help
This option specifies the maximum number of nodes in your SSI system.
MAX_NUMNODES will be 2^(This value).
If in doubt, use the default.
# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
# VIRTUAL_MEM_MAP has been retained for historical reasons.
config VIRTUAL_MEM_MAP
bool "Virtual mem map"
depends on !SPARSEMEM
default y if !IA64_HP_SIM
help
Say Y to compile the kernel with support for a virtual mem map.
This code also only takes effect if a memory hole of greater than
1 Gb is found during boot. You must turn this option on if you
require the DISCONTIGMEM option for your machine. If you are
unsure, say Y.
config HOLES_IN_ZONE
bool
default y if VIRTUAL_MEM_MAP
config HAVE_ARCH_EARLY_PFN_TO_NID
def_bool NUMA && SPARSEMEM
config HAVE_ARCH_NODEDATA_EXTENSION
def_bool y
depends on NUMA
config USE_PERCPU_NUMA_NODE_ID
def_bool y
depends on NUMA
config HAVE_MEMORYLESS_NODES
def_bool NUMA
config ARCH_PROC_KCORE_TEXT
def_bool y
depends on PROC_KCORE
config IA64_MCA_RECOVERY
tristate "MCA recovery from errors other than TLB."
config PERFMON
bool "Performance monitor support"
help
Selects whether support for the IA-64 performance monitor hardware
is included in the kernel. This makes some kernel data-structures a
little bigger and slows down execution a bit, but it is generally
a good idea to turn this on. If you're unsure, say Y.
config IA64_PALINFO
tristate "/proc/pal support"
help
If you say Y here, you are able to get PAL (Processor Abstraction
Layer) information in /proc/pal. This contains useful information
about the processors in your systems, such as cache and TLB sizes
and the PAL firmware version in use.
To use this option, you have to ensure that the "/proc file system
support" (CONFIG_PROC_FS) is enabled, too.
config IA64_MC_ERR_INJECT
tristate "MC error injection support"
help
Adds support for MC error injection. If enabled, the kernel
will provide a sysfs interface for user applications to
call MC error injection PAL procedures to inject various errors.
This is a useful tool for MCA testing.
If you're unsure, do not select this option.
config SGI_SN
def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
config IA64_ESI
bool "ESI (Extensible SAL Interface) support"
help
If you say Y here, support is built into the kernel to
make ESI calls. ESI calls are used to support vendor-specific
firmware extensions, such as the ability to inject memory-errors
for test-purposes. If you're unsure, say N.
config IA64_HP_AML_NFW
bool "Support ACPI AML calls to native firmware"
help
This driver installs a global ACPI Operation Region handler for
region 0xA1. AML methods can use this OpRegion to call arbitrary
native firmware functions. The driver installs the OpRegion
handler if there is an HPQ5001 device or if the user supplies
the "force" module parameter, e.g., with the "aml_nfw.force"
kernel command line option.
source "drivers/sn/Kconfig"
config KEXEC
bool "kexec system call"
depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
select KEXEC_CORE
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
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
The name comes from the similarity to the exec system call.
It is an ongoing process to be certain the hardware in a machine
is properly shutdown, so do not be surprised if this code does not
initially work for you. As of this writing the exact hardware
interface is strongly in flux, so no good recommendation can be
made.
config CRASH_DUMP
bool "kernel crash dumps"
depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
help
Generate crash dump after being started by kexec.
source "drivers/firmware/Kconfig"
source "fs/Kconfig.binfmt"
endmenu
menu "Power management and ACPI options"
source "kernel/power/Kconfig"
source "drivers/acpi/Kconfig"
if PM
menu "CPU Frequency scaling"
source "drivers/cpufreq/Kconfig"
endmenu
endif
endmenu
if !IA64_HP_SIM
menu "Bus options (PCI, PCMCIA)"
config PCI
bool "PCI support"
help
Real IA-64 machines all have PCI/PCI-X/PCI Express busses. Say Y
here unless you are using a simulator without PCI support.
config PCI_DOMAINS
def_bool PCI
config PCI_SYSCALL
def_bool PCI
source "drivers/pci/Kconfig"
source "drivers/pcmcia/Kconfig"
endmenu
endif
source "net/Kconfig"
source "drivers/Kconfig"
source "arch/ia64/hp/sim/Kconfig"
config MSPEC
tristate "Memory special operations driver"
depends on IA64
select IA64_UNCACHED_ALLOCATOR
help
If you have an ia64 and you want to enable memory special
operations support (formerly known as fetchop), say Y here,
otherwise say N.
source "fs/Kconfig"
source "arch/ia64/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
config IOMMU_HELPER
def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)