e2fdd7fd99
Current limitations: 1) On SMP single stepping has some fundamental issues, shared with other sw single-step architectures such as mips and arm. 2) On 32-bit sparc we don't support SMP kgdb yet. That requires some reworking of the IPI mechanisms and infrastructure on that platform. Signed-off-by: David S. Miller <davem@davemloft.net>
415 lines
8.5 KiB
Plaintext
415 lines
8.5 KiB
Plaintext
# sparc64 configuration
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mainmenu "Linux Kernel Configuration for 64-bit SPARC"
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config SPARC
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bool
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default y
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select HAVE_OPROFILE
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select HAVE_KPROBES
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select HAVE_KRETPROBES
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config SPARC64
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bool
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default y
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select HAVE_IDE
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select HAVE_LMB
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select HAVE_ARCH_KGDB
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config GENERIC_TIME
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bool
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default y
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config GENERIC_CMOS_UPDATE
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bool
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default y
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config GENERIC_CLOCKEVENTS
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bool
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default y
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config 64BIT
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def_bool y
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config MMU
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bool
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default y
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config IOMMU_HELPER
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bool
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default y
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config QUICKLIST
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bool
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default y
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config STACKTRACE_SUPPORT
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bool
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default y
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config LOCKDEP_SUPPORT
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bool
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default y
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config ARCH_MAY_HAVE_PC_FDC
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bool
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default y
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config ARCH_HAS_ILOG2_U32
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bool
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default n
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config ARCH_HAS_ILOG2_U64
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bool
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default n
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config AUDIT_ARCH
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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 ARCH_NO_VIRT_TO_BUS
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def_bool y
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config OF
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def_bool y
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config GENERIC_HARDIRQS_NO__DO_IRQ
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bool
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def_bool y
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choice
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prompt "Kernel page size"
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default SPARC64_PAGE_SIZE_8KB
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config SPARC64_PAGE_SIZE_8KB
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bool "8KB"
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help
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This lets you select the page size of the kernel.
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8KB and 64KB work quite well, since SPARC ELF sections
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provide for up to 64KB alignment.
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Therefore, 512KB and 4MB are for expert hackers only.
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If you don't know what to do, choose 8KB.
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config SPARC64_PAGE_SIZE_64KB
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bool "64KB"
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config SPARC64_PAGE_SIZE_512KB
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bool "512KB"
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config SPARC64_PAGE_SIZE_4MB
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bool "4MB"
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endchoice
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config SECCOMP
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bool "Enable seccomp to safely compute untrusted bytecode"
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depends on PROC_FS
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default y
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help
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This kernel feature is useful for number crunching applications
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that may need to compute untrusted bytecode during their
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execution. By using pipes or other transports made available to
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the process as file descriptors supporting the read/write
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syscalls, it's possible to isolate those applications in
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their own address space using seccomp. Once seccomp is
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enabled via /proc/<pid>/seccomp, it cannot be disabled
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and the task is only allowed to execute a few safe syscalls
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defined by each seccomp mode.
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If unsure, say Y. Only embedded should say N here.
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source kernel/Kconfig.hz
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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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select HOTPLUG
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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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source "init/Kconfig"
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config GENERIC_HARDIRQS
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bool
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default y
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menu "General machine setup"
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source "kernel/time/Kconfig"
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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 than
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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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machines, but will use only one CPU of a multiprocessor machine. If
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you say Y here, the kernel will run on single-processor machines.
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On a single-processor machine, the kernel will run faster if you say
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N here.
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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 (2-1024)"
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range 2 1024
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depends on SMP
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default "64"
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source "drivers/cpufreq/Kconfig"
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config US3_FREQ
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tristate "UltraSPARC-III CPU Frequency driver"
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depends on CPU_FREQ
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select CPU_FREQ_TABLE
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help
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This adds the CPUFreq driver for UltraSPARC-III processors.
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For details, take a look at <file:Documentation/cpu-freq>.
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If in doubt, say N.
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config US2E_FREQ
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tristate "UltraSPARC-IIe CPU Frequency driver"
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depends on CPU_FREQ
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select CPU_FREQ_TABLE
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help
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This adds the CPUFreq driver for UltraSPARC-IIe processors.
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For details, take a look at <file:Documentation/cpu-freq>.
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If in doubt, say N.
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# Global things across all Sun machines.
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config GENERIC_LOCKBREAK
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bool
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default y
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depends on SMP && PREEMPT
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config RWSEM_GENERIC_SPINLOCK
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bool
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config RWSEM_XCHGADD_ALGORITHM
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bool
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default y
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config GENERIC_FIND_NEXT_BIT
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bool
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default y
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config GENERIC_HWEIGHT
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bool
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default y if !ULTRA_HAS_POPULATION_COUNT
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config GENERIC_CALIBRATE_DELAY
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bool
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default y
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choice
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prompt "SPARC64 Huge TLB Page Size"
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depends on HUGETLB_PAGE
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default HUGETLB_PAGE_SIZE_4MB
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config HUGETLB_PAGE_SIZE_4MB
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bool "4MB"
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config HUGETLB_PAGE_SIZE_512K
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depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
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bool "512K"
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config HUGETLB_PAGE_SIZE_64K
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depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB
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bool "64K"
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endchoice
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endmenu
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config NUMA
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bool "NUMA support"
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config NODES_SHIFT
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int
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default "4"
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depends on NEED_MULTIPLE_NODES
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# Some NUMA nodes have memory ranges that span
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# other nodes. Even though a pfn is valid and
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# between a node's start and end pfns, it may not
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# reside on that node. See memmap_init_zone()
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# for details.
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config NODES_SPAN_OTHER_NODES
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def_bool y
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depends on NEED_MULTIPLE_NODES
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config ARCH_POPULATES_NODE_MAP
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def_bool y
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config ARCH_SELECT_MEMORY_MODEL
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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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source "mm/Kconfig"
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config ISA
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bool
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config ISAPNP
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bool
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config EISA
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bool
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config MCA
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bool
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config PCMCIA
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tristate
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help
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Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
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computer. These are credit-card size devices such as network cards,
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modems or hard drives often used with laptops computers. There are
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actually two varieties of these cards: the older 16 bit PCMCIA cards
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and the newer 32 bit CardBus cards. If you want to use CardBus
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cards, you need to say Y here and also to "CardBus support" below.
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To use your PC-cards, you will need supporting software from David
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Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
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for location). Please also read the PCMCIA-HOWTO, available from
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<http://www.tldp.org/docs.html#howto>.
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To compile this driver as modules, choose M here: the
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modules will be called pcmcia_core and ds.
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config SBUS
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bool
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default y
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config SBUSCHAR
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bool
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default y
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config SUN_AUXIO
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bool
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default y
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config SUN_IO
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bool
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default y
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config SUN_LDOMS
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bool "Sun Logical Domains support"
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help
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Say Y here is you want to support virtual devices via
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Logical Domains.
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config PCI
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bool "PCI support"
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select ARCH_SUPPORTS_MSI
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help
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Find out whether your system includes a PCI bus. PCI is the name of
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a bus system, i.e. the way the CPU talks to the other stuff inside
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your box. If you say Y here, the kernel will include drivers and
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infrastructure code to support PCI bus devices.
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config PCI_DOMAINS
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def_bool PCI
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config PCI_SYSCALL
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def_bool PCI
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source "drivers/pci/Kconfig"
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config SUN_OPENPROMFS
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tristate "Openprom tree appears in /proc/openprom"
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help
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If you say Y, the OpenPROM device tree will be available as a
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virtual file system, which you can mount to /proc/openprom by "mount
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-t openpromfs none /proc/openprom".
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To compile the /proc/openprom support as a module, choose M here: the
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module will be called openpromfs. If unsure, choose M.
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menu "Executable file formats"
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source "fs/Kconfig.binfmt"
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config COMPAT
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bool
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default y
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select COMPAT_BINFMT_ELF
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config SYSVIPC_COMPAT
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bool
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depends on COMPAT && SYSVIPC
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default y
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endmenu
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config SCHED_SMT
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bool "SMT (Hyperthreading) scheduler support"
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depends on SMP
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default y
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help
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SMT scheduler support improves the CPU scheduler's decision making
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when dealing with SPARC cpus at a cost of slightly increased overhead
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in some places. If unsure say N here.
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config SCHED_MC
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bool "Multi-core scheduler support"
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depends on SMP
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default y
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help
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Multi-core scheduler support improves the CPU scheduler's decision
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making when dealing with multi-core CPU chips at a cost of slightly
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increased overhead in some places. If unsure say N here.
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source "kernel/Kconfig.preempt"
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config CMDLINE_BOOL
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bool "Default bootloader kernel arguments"
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config CMDLINE
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string "Initial kernel command string"
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depends on CMDLINE_BOOL
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default "console=ttyS0,9600 root=/dev/sda1"
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help
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Say Y here if you want to be able to pass default arguments to
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the kernel. This will be overridden by the bootloader, if you
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use one (such as SILO). This is most useful if you want to boot
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a kernel from TFTP, and want default options to be available
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with having them passed on the command line.
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NOTE: This option WILL override the PROM bootargs setting!
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source "net/Kconfig"
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source "drivers/Kconfig"
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source "drivers/sbus/char/Kconfig"
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source "fs/Kconfig"
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source "arch/sparc64/Kconfig.debug"
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source "security/Kconfig"
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source "crypto/Kconfig"
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source "lib/Kconfig"
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