| # SPDX-License-Identifier: GPL-2.0 |
| config PGTABLE_LEVELS |
| int "Page Table Levels" if !IA64_PAGE_SIZE_64KB |
| range 3 4 if !IA64_PAGE_SIZE_64KB |
| default 3 |
| |
| menu "Processor type and features" |
| |
| config IA64 |
| bool |
| select ARCH_BINFMT_ELF_EXTRA_PHDRS |
| select ARCH_HAS_CPU_FINALIZE_INIT |
| select ARCH_HAS_DMA_MARK_CLEAN |
| select ARCH_HAS_STRNCPY_FROM_USER |
| select ARCH_HAS_STRNLEN_USER |
| select ARCH_MIGHT_HAVE_PC_PARPORT |
| select ARCH_MIGHT_HAVE_PC_SERIO |
| select ACPI |
| select ACPI_NUMA if NUMA |
| select ARCH_ENABLE_MEMORY_HOTPLUG |
| select ARCH_ENABLE_MEMORY_HOTREMOVE |
| select ARCH_SUPPORTS_ACPI |
| select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI |
| select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI |
| select FORCE_PCI |
| select PCI_DOMAINS if PCI |
| select PCI_MSI |
| select PCI_SYSCALL if PCI |
| select HAVE_ASM_MODVERSIONS |
| select HAVE_UNSTABLE_SCHED_CLOCK |
| select HAVE_EXIT_THREAD |
| select HAVE_KPROBES |
| select HAVE_KRETPROBES |
| select HAVE_FTRACE_MCOUNT_RECORD |
| select HAVE_DYNAMIC_FTRACE if (!ITANIUM) |
| select HAVE_FUNCTION_TRACER |
| select HAVE_SETUP_PER_CPU_AREA |
| select TTY |
| select HAVE_ARCH_TRACEHOOK |
| select HAVE_FUNCTION_DESCRIPTORS |
| select HAVE_VIRT_CPU_ACCOUNTING |
| select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE |
| 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_TASK_STRUCT_ON_STACK |
| select ARCH_TASK_STRUCT_ALLOCATOR |
| select ARCH_THREAD_STACK_ALLOCATOR |
| select ARCH_CLOCKSOURCE_DATA |
| select GENERIC_TIME_VSYSCALL |
| select LEGACY_TIMER_TICK |
| select SWIOTLB |
| 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 |
| select NEED_DMA_MAP_STATE |
| select NEED_SG_DMA_LENGTH |
| select NUMA if !FLATMEM |
| select PCI_MSI_ARCH_FALLBACKS if PCI_MSI |
| select ZONE_DMA32 |
| 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 MMU |
| bool |
| default y |
| |
| config STACKTRACE_SUPPORT |
| def_bool y |
| |
| config GENERIC_LOCKBREAK |
| def_bool n |
| |
| config GENERIC_CALIBRATE_DELAY |
| bool |
| default 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 "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 |
| |
| source "kernel/Kconfig.hz" |
| |
| 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_SGI_UV |
| bool "SGI-UV support" |
| help |
| Selecting this option will add specific support for running on SGI |
| UV based systems. If you have an SGI UV system or are building a |
| distro kernel, select this option. |
| |
| config IA64_HP_SBA_IOMMU |
| bool "HP SBA IOMMU support" |
| select DMA_OPS |
| default y |
| help |
| Say Y here to add support for the SBA IOMMU found on HP zx1 and |
| sx1000 systems. If you're unsure, answer Y. |
| |
| 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 ARCH_FORCE_MAX_ORDER |
| 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 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. |
| |
| config ARCH_SELECT_MEMORY_MODEL |
| def_bool y |
| |
| config ARCH_FLATMEM_ENABLE |
| def_bool y |
| |
| config ARCH_SPARSEMEM_ENABLE |
| def_bool y |
| select SPARSEMEM_VMEMMAP_ENABLE |
| |
| config ARCH_SPARSEMEM_DEFAULT |
| def_bool y |
| depends on ARCH_SPARSEMEM_ENABLE |
| |
| config NUMA |
| bool "NUMA support" |
| depends on !FLATMEM |
| select SMP |
| select USE_PERCPU_NUMA_NODE_ID |
| 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 NUMA |
| 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. |
| |
| config HAVE_ARCH_NODEDATA_EXTENSION |
| 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 |
| bool "MCA recovery from errors other than TLB." |
| |
| 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 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. |
| |
| config KEXEC |
| bool "kexec system call" |
| depends on !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 && (!SMP || HOTPLUG_CPU) |
| help |
| Generate crash dump after being started by kexec. |
| |
| 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 |
| |
| 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. |
