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414 lines
11 KiB
414 lines
11 KiB
# SPDX-License-Identifier: GPL-2.0 |
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config PGTABLE_LEVELS |
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int "Page Table Levels" if !IA64_PAGE_SIZE_64KB |
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range 3 4 if !IA64_PAGE_SIZE_64KB |
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default 3 |
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menu "Processor type and features" |
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config IA64 |
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bool |
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select ARCH_HAS_DMA_MARK_CLEAN |
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select ARCH_HAS_STRNCPY_FROM_USER |
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select ARCH_HAS_STRNLEN_USER |
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select ARCH_MIGHT_HAVE_PC_PARPORT |
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select ARCH_MIGHT_HAVE_PC_SERIO |
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select ACPI |
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select ACPI_NUMA if NUMA |
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select ARCH_ENABLE_MEMORY_HOTPLUG |
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select ARCH_ENABLE_MEMORY_HOTREMOVE |
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select ARCH_SUPPORTS_ACPI |
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select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI |
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select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI |
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select FORCE_PCI |
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select PCI_DOMAINS if PCI |
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select PCI_MSI |
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select PCI_SYSCALL if PCI |
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select HAVE_ASM_MODVERSIONS |
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select HAVE_UNSTABLE_SCHED_CLOCK |
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select HAVE_EXIT_THREAD |
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select HAVE_KPROBES |
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select HAVE_KRETPROBES |
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select HAVE_FTRACE_MCOUNT_RECORD |
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select HAVE_DYNAMIC_FTRACE if (!ITANIUM) |
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select HAVE_FUNCTION_TRACER |
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select TTY |
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select HAVE_ARCH_TRACEHOOK |
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select HAVE_VIRT_CPU_ACCOUNTING |
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select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE |
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select VIRT_TO_BUS |
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select GENERIC_IRQ_PROBE |
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select GENERIC_PENDING_IRQ if SMP |
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select GENERIC_IRQ_SHOW |
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select GENERIC_IRQ_LEGACY |
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select ARCH_HAVE_NMI_SAFE_CMPXCHG |
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select GENERIC_IOMAP |
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select GENERIC_SMP_IDLE_THREAD |
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select ARCH_TASK_STRUCT_ON_STACK |
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select ARCH_TASK_STRUCT_ALLOCATOR |
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select ARCH_THREAD_STACK_ALLOCATOR |
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select ARCH_CLOCKSOURCE_DATA |
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select GENERIC_TIME_VSYSCALL |
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select LEGACY_TIMER_TICK |
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select SWIOTLB |
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select SYSCTL_ARCH_UNALIGN_NO_WARN |
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select HAVE_MOD_ARCH_SPECIFIC |
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select MODULES_USE_ELF_RELA |
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select ARCH_USE_CMPXCHG_LOCKREF |
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select HAVE_ARCH_AUDITSYSCALL |
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select NEED_DMA_MAP_STATE |
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select NEED_SG_DMA_LENGTH |
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select NUMA if !FLATMEM |
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select PCI_MSI_ARCH_FALLBACKS if PCI_MSI |
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select SET_FS |
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select ZONE_DMA32 |
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default y |
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help |
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The Itanium Processor Family is Intel's 64-bit successor to |
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the 32-bit X86 line. The IA-64 Linux project has a home |
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page at <http://www.linuxia64.org/> and a mailing list at |
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<[email protected]>. |
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config 64BIT |
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bool |
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select ATA_NONSTANDARD if ATA |
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default y |
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config MMU |
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bool |
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default y |
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config STACKTRACE_SUPPORT |
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def_bool y |
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config GENERIC_LOCKBREAK |
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def_bool n |
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config GENERIC_CALIBRATE_DELAY |
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bool |
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default y |
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config HAVE_SETUP_PER_CPU_AREA |
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def_bool y |
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config DMI |
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bool |
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default y |
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select DMI_SCAN_MACHINE_NON_EFI_FALLBACK |
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config EFI |
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bool |
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select UCS2_STRING |
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default y |
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config SCHED_OMIT_FRAME_POINTER |
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bool |
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default y |
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config IA64_UNCACHED_ALLOCATOR |
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bool |
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select GENERIC_ALLOCATOR |
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config ARCH_USES_PG_UNCACHED |
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def_bool y |
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depends on IA64_UNCACHED_ALLOCATOR |
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config AUDIT_ARCH |
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bool |
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default y |
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choice |
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prompt "Processor type" |
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default ITANIUM |
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config ITANIUM |
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bool "Itanium" |
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help |
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Select your IA-64 processor type. The default is Itanium. |
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This choice is safe for all IA-64 systems, but may not perform |
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optimally on systems with, say, Itanium 2 or newer processors. |
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config MCKINLEY |
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bool "Itanium 2" |
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help |
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Select this to configure for an Itanium 2 (McKinley) processor. |
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endchoice |
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choice |
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prompt "Kernel page size" |
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default IA64_PAGE_SIZE_16KB |
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config IA64_PAGE_SIZE_4KB |
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bool "4KB" |
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help |
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This lets you select the page size of the kernel. For best IA-64 |
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performance, a page size of 8KB or 16KB is recommended. For best |
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IA-32 compatibility, a page size of 4KB should be selected (the vast |
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majority of IA-32 binaries work perfectly fine with a larger page |
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size). For Itanium 2 or newer systems, a page size of 64KB can also |
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be selected. |
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4KB For best IA-32 compatibility |
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8KB For best IA-64 performance |
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16KB For best IA-64 performance |
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64KB Requires Itanium 2 or newer processor. |
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If you don't know what to do, choose 16KB. |
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config IA64_PAGE_SIZE_8KB |
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bool "8KB" |
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config IA64_PAGE_SIZE_16KB |
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bool "16KB" |
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config IA64_PAGE_SIZE_64KB |
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depends on !ITANIUM |
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bool "64KB" |
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endchoice |
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source "kernel/Kconfig.hz" |
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config IA64_BRL_EMU |
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bool |
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depends on ITANIUM |
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default y |
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# align cache-sensitive data to 128 bytes |
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config IA64_L1_CACHE_SHIFT |
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int |
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default "7" if MCKINLEY |
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default "6" if ITANIUM |
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config IA64_SGI_UV |
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bool "SGI-UV support" |
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help |
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Selecting this option will add specific support for running on SGI |
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UV based systems. If you have an SGI UV system or are building a |
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distro kernel, select this option. |
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config IA64_HP_SBA_IOMMU |
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bool "HP SBA IOMMU support" |
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select DMA_OPS |
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default y |
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help |
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Say Y here to add support for the SBA IOMMU found on HP zx1 and |
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sx1000 systems. If you're unsure, answer Y. |
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config IA64_CYCLONE |
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bool "Cyclone (EXA) Time Source support" |
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help |
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Say Y here to enable support for IBM EXA Cyclone time source. |
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If you're unsure, answer N. |
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config FORCE_MAX_ZONEORDER |
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int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
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range 11 17 if !HUGETLB_PAGE |
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default "17" if HUGETLB_PAGE |
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default "11" |
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config SMP |
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bool "Symmetric multi-processing support" |
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help |
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This enables support for systems with more than one CPU. If you have |
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a system with only one CPU, say N. If you have a system with more |
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than one CPU, say Y. |
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If you say N here, the kernel will run on single and multiprocessor |
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systems, but will use only one CPU of a multiprocessor system. If |
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you say Y here, the kernel will run on many, but not all, |
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single processor systems. On a single processor system, the kernel |
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will run faster if you say N here. |
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See also the SMP-HOWTO available at |
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<http://www.tldp.org/docs.html#howto>. |
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If you don't know what to do here, say N. |
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config NR_CPUS |
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int "Maximum number of CPUs (2-4096)" |
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range 2 4096 |
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depends on SMP |
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default "4096" |
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help |
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You should set this to the number of CPUs in your system, but |
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keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but |
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only use 2 CPUs on a >2 CPU system. Setting this to a value larger |
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than 64 will cause the use of a CPU mask array, causing a small |
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performance hit. |
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config HOTPLUG_CPU |
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bool "Support for hot-pluggable CPUs" |
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depends on SMP |
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default n |
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help |
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Say Y here to experiment with turning CPUs off and on. CPUs |
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can be controlled through /sys/devices/system/cpu/cpu#. |
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Say N if you want to disable CPU hotplug. |
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config SCHED_SMT |
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bool "SMT scheduler support" |
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depends on SMP |
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help |
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Improves the CPU scheduler's decision making when dealing with |
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Intel IA64 chips with MultiThreading at a cost of slightly increased |
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overhead in some places. If unsure say N here. |
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config PERMIT_BSP_REMOVE |
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bool "Support removal of Bootstrap Processor" |
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depends on HOTPLUG_CPU |
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default n |
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help |
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Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU |
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support. |
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config FORCE_CPEI_RETARGET |
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bool "Force assumption that CPEI can be re-targeted" |
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depends on PERMIT_BSP_REMOVE |
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default n |
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help |
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Say Y if you need to force the assumption that CPEI can be re-targeted to |
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any cpu in the system. This hint is available via ACPI 3.0 specifications. |
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Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. |
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This option it useful to enable this feature on older BIOS's as well. |
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You can also enable this by using boot command line option force_cpei=1. |
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config ARCH_SELECT_MEMORY_MODEL |
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def_bool y |
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config ARCH_FLATMEM_ENABLE |
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def_bool y |
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config ARCH_SPARSEMEM_ENABLE |
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def_bool y |
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select SPARSEMEM_VMEMMAP_ENABLE |
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config ARCH_SPARSEMEM_DEFAULT |
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def_bool y |
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depends on ARCH_SPARSEMEM_ENABLE |
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config NUMA |
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bool "NUMA support" |
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depends on !FLATMEM |
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select SMP |
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help |
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Say Y to compile the kernel to support NUMA (Non-Uniform Memory |
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Access). This option is for configuring high-end multiprocessor |
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server systems. If in doubt, say N. |
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config NODES_SHIFT |
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int "Max num nodes shift(3-10)" |
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range 3 10 |
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default "10" |
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depends on NUMA |
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help |
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This option specifies the maximum number of nodes in your SSI system. |
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MAX_NUMNODES will be 2^(This value). |
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If in doubt, use the default. |
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config HAVE_ARCH_NODEDATA_EXTENSION |
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def_bool y |
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depends on NUMA |
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config USE_PERCPU_NUMA_NODE_ID |
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def_bool y |
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depends on NUMA |
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config HAVE_MEMORYLESS_NODES |
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def_bool NUMA |
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config ARCH_PROC_KCORE_TEXT |
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def_bool y |
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depends on PROC_KCORE |
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config IA64_MCA_RECOVERY |
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tristate "MCA recovery from errors other than TLB." |
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config IA64_PALINFO |
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tristate "/proc/pal support" |
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help |
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If you say Y here, you are able to get PAL (Processor Abstraction |
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Layer) information in /proc/pal. This contains useful information |
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about the processors in your systems, such as cache and TLB sizes |
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and the PAL firmware version in use. |
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To use this option, you have to ensure that the "/proc file system |
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support" (CONFIG_PROC_FS) is enabled, too. |
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config IA64_MC_ERR_INJECT |
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tristate "MC error injection support" |
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help |
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Adds support for MC error injection. If enabled, the kernel |
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will provide a sysfs interface for user applications to |
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call MC error injection PAL procedures to inject various errors. |
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This is a useful tool for MCA testing. |
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If you're unsure, do not select this option. |
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config IA64_ESI |
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bool "ESI (Extensible SAL Interface) support" |
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help |
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If you say Y here, support is built into the kernel to |
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make ESI calls. ESI calls are used to support vendor-specific |
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firmware extensions, such as the ability to inject memory-errors |
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for test-purposes. If you're unsure, say N. |
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config IA64_HP_AML_NFW |
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bool "Support ACPI AML calls to native firmware" |
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help |
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This driver installs a global ACPI Operation Region handler for |
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region 0xA1. AML methods can use this OpRegion to call arbitrary |
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native firmware functions. The driver installs the OpRegion |
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handler if there is an HPQ5001 device or if the user supplies |
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the "force" module parameter, e.g., with the "aml_nfw.force" |
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kernel command line option. |
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config KEXEC |
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bool "kexec system call" |
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depends on !SMP || HOTPLUG_CPU |
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select KEXEC_CORE |
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help |
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kexec is a system call that implements the ability to shutdown your |
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current kernel, and to start another kernel. It is like a reboot |
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but it is independent of the system firmware. And like a reboot |
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you can start any kernel with it, not just Linux. |
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The name comes from the similarity to the exec system call. |
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It is an ongoing process to be certain the hardware in a machine |
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is properly shutdown, so do not be surprised if this code does not |
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initially work for you. As of this writing the exact hardware |
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interface is strongly in flux, so no good recommendation can be |
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made. |
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config CRASH_DUMP |
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bool "kernel crash dumps" |
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depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU) |
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help |
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Generate crash dump after being started by kexec. |
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endmenu |
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menu "Power management and ACPI options" |
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source "kernel/power/Kconfig" |
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source "drivers/acpi/Kconfig" |
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if PM |
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menu "CPU Frequency scaling" |
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source "drivers/cpufreq/Kconfig" |
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endmenu |
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endif |
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endmenu |
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config MSPEC |
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tristate "Memory special operations driver" |
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depends on IA64 |
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select IA64_UNCACHED_ALLOCATOR |
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help |
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If you have an ia64 and you want to enable memory special |
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operations support (formerly known as fetchop), say Y here, |
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otherwise say N.
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