1# 2# For a description of the syntax of this configuration file, 3# see Documentation/kbuild/kconfig-language.txt. 4# 5 6menuconfig ARC_PLAT_EZNPS 7 bool "\"EZchip\" ARC dev platform" 8 select ARC_HAS_COH_CACHES if SMP 9 select CPU_BIG_ENDIAN 10 select CLKSRC_NPS 11 select EZNPS_GIC 12 select EZCHIP_NPS_MANAGEMENT_ENET if ETHERNET 13 help 14 Support for EZchip development platforms, 15 based on ARC700 cores. 16 We handle few flavours: 17 - Hardware Emulator AKA HE which is FPGA based chasis 18 - Simulator based on MetaWare nSIM 19 - NPS400 chip based on ASIC 20 21config EZNPS_MTM_EXT 22 bool "ARC-EZchip MTM Extensions" 23 select CPUMASK_OFFSTACK 24 depends on ARC_PLAT_EZNPS && SMP 25 default y 26 help 27 Here we add new hierarchy for CPUs topology. 28 We got: 29 Core 30 Thread 31 At the new thread level each CPU represent one HW thread. 32 At highest hierarchy each core contain 16 threads, 33 any of them seem like CPU from Linux point of view. 34 All threads within same core share the execution unit of the 35 core and HW scheduler round robin between them. 36