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# SPDX-License-Identifier: GPL-2.0-only config CSKY def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_CPU_CACHE_ALIASING select ARCH_HAS_DMA_PREP_COHERENT select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_INLINE_READ_LOCK if !PREEMPTION select ARCH_INLINE_READ_LOCK_BH if !PREEMPTION select ARCH_INLINE_READ_LOCK_IRQ if !PREEMPTION select ARCH_INLINE_READ_LOCK_IRQSAVE if !PREEMPTION select ARCH_INLINE_READ_UNLOCK if !PREEMPTION select ARCH_INLINE_READ_UNLOCK_BH if !PREEMPTION select ARCH_INLINE_READ_UNLOCK_IRQ if !PREEMPTION select ARCH_INLINE_READ_UNLOCK_IRQRESTORE if !PREEMPTION select ARCH_INLINE_WRITE_LOCK if !PREEMPTION select ARCH_INLINE_WRITE_LOCK_BH if !PREEMPTION select ARCH_INLINE_WRITE_LOCK_IRQ if !PREEMPTION select ARCH_INLINE_WRITE_LOCK_IRQSAVE if !PREEMPTION select ARCH_INLINE_WRITE_UNLOCK if !PREEMPTION select ARCH_INLINE_WRITE_UNLOCK_BH if !PREEMPTION select ARCH_INLINE_WRITE_UNLOCK_IRQ if !PREEMPTION select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE if !PREEMPTION select ARCH_INLINE_SPIN_TRYLOCK if !PREEMPTION select ARCH_INLINE_SPIN_TRYLOCK_BH if !PREEMPTION select ARCH_INLINE_SPIN_LOCK if !PREEMPTION select ARCH_INLINE_SPIN_LOCK_BH if !PREEMPTION select ARCH_INLINE_SPIN_LOCK_IRQ if !PREEMPTION select ARCH_INLINE_SPIN_LOCK_IRQSAVE if !PREEMPTION select ARCH_INLINE_SPIN_UNLOCK if !PREEMPTION select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPTION select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPTION select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPTION select ARCH_NEED_CMPXCHG_1_EMU select ARCH_WANT_FRAME_POINTERS if !CPU_CK610 && $(cc-option,-mbacktrace) select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT select COMMON_CLK select CLKSRC_MMIO select CSKY_MPINTC if CPU_CK860 select CSKY_MP_TIMER if CPU_CK860 select CSKY_APB_INTC select DMA_DIRECT_REMAP select IRQ_DOMAIN select DW_APB_TIMER_OF select GENERIC_IOREMAP select GENERIC_LIB_ASHLDI3 select GENERIC_LIB_ASHRDI3 select GENERIC_LIB_LSHRDI3 select GENERIC_LIB_MULDI3 select GENERIC_LIB_CMPDI2 select GENERIC_LIB_UCMPDI2 select GENERIC_ALLOCATOR select GENERIC_ATOMIC64 select GENERIC_CPU_DEVICES select GENERIC_IRQ_CHIP select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_IRQ_MULTI_HANDLER select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD select GX6605S_TIMER if CPU_CK610 select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_JUMP_LABEL if !CPU_CK610 select HAVE_ARCH_JUMP_LABEL_RELATIVE select HAVE_ARCH_MMAP_RND_BITS select HAVE_ARCH_SECCOMP_FILTER select HAVE_CONTEXT_TRACKING_USER select HAVE_VIRT_CPU_ACCOUNTING_GEN select HAVE_DEBUG_BUGVERBOSE select HAVE_DEBUG_KMEMLEAK select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_ERROR_INJECTION select HAVE_FTRACE_MCOUNT_RECORD select HAVE_KERNEL_GZIP select HAVE_KERNEL_LZO select HAVE_KERNEL_LZMA select HAVE_KPROBES if !CPU_CK610 select HAVE_KPROBES_ON_FTRACE if !CPU_CK610 select HAVE_KRETPROBES if !CPU_CK610 select HAVE_PAGE_SIZE_4KB select HAVE_PERF_EVENTS select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP select HAVE_DMA_CONTIGUOUS select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU select LOCK_MM_AND_FIND_VMA select MAY_HAVE_SPARSE_IRQ select MODULES_USE_ELF_RELA if MODULES select OF select OF_EARLY_FLATTREE select PERF_USE_VMALLOC if CPU_CK610 select RTC_LIB select TIMER_OF select GENERIC_PCI_IOMAP select HAVE_PCI select PCI_DOMAINS_GENERIC if PCI select PCI_SYSCALL if PCI select PCI_MSI if PCI select TRACE_IRQFLAGS_SUPPORT config LOCKDEP_SUPPORT def_bool y config ARCH_SUPPORTS_UPROBES def_bool y if !CPU_CK610 config CPU_HAS_CACHEV2 bool config CPU_HAS_FPUV2 bool config CPU_HAS_HILO bool config CPU_HAS_TLBI bool config CPU_HAS_LDSTEX bool help For SMP, CPU needs "ldex&stex" instructions for atomic operations. config CPU_NEED_TLBSYNC bool config CPU_NEED_SOFTALIGN bool config CPU_NO_USER_BKPT bool help For abiv2 we couldn't use "trap 1" as user space bkpt in gdbserver, because abiv2 is 16/32bit instruction set and "trap 1" is 32bit. So we need a 16bit instruction as user space bkpt, and it will cause an illegal instruction exception. In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not. config GENERIC_CALIBRATE_DELAY def_bool y config GENERIC_CSUM def_bool y config GENERIC_HWEIGHT def_bool y config MMU def_bool y config STACKTRACE_SUPPORT def_bool y config TIME_LOW_RES def_bool y config CPU_ASID_BITS int default "8" if (CPU_CK610 || CPU_CK807 || CPU_CK810) default "12" if (CPU_CK860) config L1_CACHE_SHIFT int default "4" if (CPU_CK610) default "5" if (CPU_CK807 || CPU_CK810) default "6" if (CPU_CK860) config ARCH_MMAP_RND_BITS_MIN default 8 # max bits determined by the following formula: # VA_BITS - PAGE_SHIFT - 3 config ARCH_MMAP_RND_BITS_MAX default 17 menu "Processor type and features" choice prompt "CPU MODEL" default CPU_CK807 config CPU_CK610 bool "CSKY CPU ck610" select CPU_NEED_TLBSYNC select CPU_NEED_SOFTALIGN select CPU_NO_USER_BKPT config CPU_CK810 bool "CSKY CPU ck810" select CPU_HAS_HILO select CPU_NEED_TLBSYNC config CPU_CK807 bool "CSKY CPU ck807" select CPU_HAS_HILO config CPU_CK860 bool "CSKY CPU ck860" select CPU_HAS_TLBI select CPU_HAS_CACHEV2 select CPU_HAS_LDSTEX select CPU_HAS_FPUV2 endchoice choice prompt "PAGE OFFSET" default PAGE_OFFSET_80000000 config PAGE_OFFSET_80000000 bool "PAGE OFFSET 2G (user:kernel = 2:2)" config PAGE_OFFSET_A0000000 bool "PAGE OFFSET 2.5G (user:kernel = 2.5:1.5)" endchoice config PAGE_OFFSET hex default 0x80000000 if PAGE_OFFSET_80000000 default 0xa0000000 if PAGE_OFFSET_A0000000 choice prompt "C-SKY PMU type" depends on PERF_EVENTS depends on CPU_CK807 || CPU_CK810 || CPU_CK860 config CPU_PMU_NONE bool "None" config CSKY_PMU_V1 bool "Performance Monitoring Unit Ver.1" endchoice choice prompt "Power Manager Instruction (wait/doze/stop)" default CPU_PM_NONE config CPU_PM_NONE bool "None" config CPU_PM_WAIT bool "wait" config CPU_PM_DOZE bool "doze" config CPU_PM_STOP bool "stop" endchoice menuconfig HAVE_TCM bool "Tightly-Coupled/Sram Memory" depends on !COMPILE_TEST help The implementation are not only used by TCM (Tightly-Coupled Memory) but also used by sram on SOC bus. It follow existed linux tcm software interface, so that old tcm application codes could be re-used directly. if HAVE_TCM config ITCM_RAM_BASE hex "ITCM ram base" default 0xffffffff config ITCM_NR_PAGES int "Page count of ITCM size: NR*4KB" range 1 256 default 32 config HAVE_DTCM bool "DTCM Support" config DTCM_RAM_BASE hex "DTCM ram base" depends on HAVE_DTCM default 0xffffffff config DTCM_NR_PAGES int "Page count of DTCM size: NR*4KB" depends on HAVE_DTCM range 1 256 default 32 endif config CPU_HAS_VDSP bool "CPU has VDSP coprocessor" depends on CPU_HAS_FPU && CPU_HAS_FPUV2 config CPU_HAS_FPU bool "CPU has FPU coprocessor" depends on CPU_CK807 || CPU_CK810 || CPU_CK860 config CPU_HAS_ICACHE_INS bool "CPU has Icache invalidate instructions" depends on CPU_HAS_CACHEV2 config CPU_HAS_TEE bool "CPU has Trusted Execution Environment" depends on CPU_CK810 config SMP bool "Symmetric Multi-Processing (SMP) support for C-SKY" depends on CPU_CK860 default n config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 depends on SMP default "4" config HIGHMEM bool "High Memory Support" depends on !CPU_CK610 select KMAP_LOCAL default y config DRAM_BASE hex "DRAM start addr (the same with memory-section in dts)" default 0x0 config HOTPLUG_CPU bool "Support for hot-pluggable CPUs" select GENERIC_IRQ_MIGRATION depends on SMP help Say Y here to allow turning CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu/cpu1/hotplug/target. Say N if you want to disable CPU hotplug. config HAVE_EFFICIENT_UNALIGNED_STRING_OPS bool "Enable EFFICIENT_UNALIGNED_STRING_OPS for abiv2" depends on CPU_CK807 || CPU_CK810 || CPU_CK860 help Say Y here to enable EFFICIENT_UNALIGNED_STRING_OPS. Some CPU models could deal with unaligned access by hardware. endmenu source "arch/csky/Kconfig.platforms" source "kernel/Kconfig.hz"