mirror of https://gitee.com/openkylin/linux.git
36 lines
1.0 KiB
Plaintext
36 lines
1.0 KiB
Plaintext
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#
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# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/kconfig-language.txt.
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#
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menuconfig ARC_PLAT_EZNPS
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bool "\"EZchip\" ARC dev platform"
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select ARC_HAS_COH_CACHES if SMP
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select CPU_BIG_ENDIAN
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select CLKSRC_NPS
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select EZNPS_GIC
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select EZCHIP_NPS_MANAGEMENT_ENET if ETHERNET
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help
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Support for EZchip development platforms,
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based on ARC700 cores.
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We handle few flavours:
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- Hardware Emulator AKA HE which is FPGA based chasis
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- Simulator based on MetaWare nSIM
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- NPS400 chip based on ASIC
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config EZNPS_MTM_EXT
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bool "ARC-EZchip MTM Extensions"
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select CPUMASK_OFFSTACK
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depends on ARC_PLAT_EZNPS && SMP
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default y
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help
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Here we add new hierarchy for CPUs topology.
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We got:
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Core
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Thread
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At the new thread level each CPU represent one HW thread.
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At highest hierarchy each core contain 16 threads,
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any of them seem like CPU from Linux point of view.
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All threads within same core share the execution unit of the
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core and HW scheduler round robin between them.
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