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334 lines
7.0 KiB
334 lines
7.0 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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config CSKY |
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def_bool y |
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select ARCH_32BIT_OFF_T |
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select ARCH_HAS_DMA_PREP_COHERENT |
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select ARCH_HAS_GCOV_PROFILE_ALL |
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select ARCH_HAS_SYNC_DMA_FOR_CPU |
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select ARCH_HAS_SYNC_DMA_FOR_DEVICE |
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select ARCH_USE_BUILTIN_BSWAP |
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select ARCH_USE_QUEUED_RWLOCKS |
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select ARCH_WANT_FRAME_POINTERS if !CPU_CK610 |
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select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT |
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select COMMON_CLK |
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select CLKSRC_MMIO |
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select CSKY_MPINTC if CPU_CK860 |
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select CSKY_MP_TIMER if CPU_CK860 |
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select CSKY_APB_INTC |
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select DMA_DIRECT_REMAP |
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select IRQ_DOMAIN |
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select HANDLE_DOMAIN_IRQ |
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select DW_APB_TIMER_OF |
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select GENERIC_IOREMAP |
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select GENERIC_LIB_ASHLDI3 |
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select GENERIC_LIB_ASHRDI3 |
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select GENERIC_LIB_LSHRDI3 |
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select GENERIC_LIB_MULDI3 |
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select GENERIC_LIB_CMPDI2 |
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select GENERIC_LIB_UCMPDI2 |
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select GENERIC_ALLOCATOR |
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select GENERIC_ATOMIC64 |
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select GENERIC_CPU_DEVICES |
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select GENERIC_IRQ_CHIP |
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select GENERIC_IRQ_PROBE |
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select GENERIC_IRQ_SHOW |
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select GENERIC_IRQ_MULTI_HANDLER |
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select GENERIC_SCHED_CLOCK |
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select GENERIC_SMP_IDLE_THREAD |
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select GENERIC_TIME_VSYSCALL |
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select GENERIC_VDSO_32 |
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select GENERIC_GETTIMEOFDAY |
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select GX6605S_TIMER if CPU_CK610 |
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select HAVE_ARCH_TRACEHOOK |
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select HAVE_ARCH_AUDITSYSCALL |
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select HAVE_ARCH_MMAP_RND_BITS |
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select HAVE_ARCH_SECCOMP_FILTER |
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select HAVE_CONTEXT_TRACKING |
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select HAVE_VIRT_CPU_ACCOUNTING_GEN |
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select HAVE_DEBUG_BUGVERBOSE |
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select HAVE_DEBUG_KMEMLEAK |
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select HAVE_DYNAMIC_FTRACE |
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select HAVE_DYNAMIC_FTRACE_WITH_REGS |
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select HAVE_GENERIC_VDSO |
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select HAVE_FUNCTION_TRACER |
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select HAVE_FUNCTION_GRAPH_TRACER |
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select HAVE_FUNCTION_ERROR_INJECTION |
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select HAVE_FUTEX_CMPXCHG if FUTEX && SMP |
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select HAVE_FTRACE_MCOUNT_RECORD |
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select HAVE_KERNEL_GZIP |
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select HAVE_KERNEL_LZO |
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select HAVE_KERNEL_LZMA |
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select HAVE_KPROBES if !CPU_CK610 |
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select HAVE_KPROBES_ON_FTRACE if !CPU_CK610 |
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select HAVE_KRETPROBES if !CPU_CK610 |
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select HAVE_PERF_EVENTS |
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select HAVE_PERF_REGS |
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select HAVE_PERF_USER_STACK_DUMP |
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select HAVE_DMA_CONTIGUOUS |
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select HAVE_REGS_AND_STACK_ACCESS_API |
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select HAVE_RSEQ |
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select HAVE_STACKPROTECTOR |
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select HAVE_SYSCALL_TRACEPOINTS |
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select MAY_HAVE_SPARSE_IRQ |
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select MODULES_USE_ELF_RELA if MODULES |
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select OF |
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select OF_EARLY_FLATTREE |
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select PERF_USE_VMALLOC if CPU_CK610 |
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select RTC_LIB |
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select TIMER_OF |
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select USB_ARCH_HAS_EHCI |
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select USB_ARCH_HAS_OHCI |
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select GENERIC_PCI_IOMAP |
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select HAVE_PCI |
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select PCI_DOMAINS_GENERIC if PCI |
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select PCI_SYSCALL if PCI |
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select PCI_MSI if PCI |
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select SET_FS |
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config LOCKDEP_SUPPORT |
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def_bool y |
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config ARCH_SUPPORTS_UPROBES |
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def_bool y if !CPU_CK610 |
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config CPU_HAS_CACHEV2 |
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bool |
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config CPU_HAS_FPUV2 |
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bool |
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config CPU_HAS_HILO |
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bool |
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config CPU_HAS_TLBI |
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bool |
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config CPU_HAS_LDSTEX |
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bool |
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help |
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For SMP, CPU needs "ldex&stex" instructions for atomic operations. |
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config CPU_NEED_TLBSYNC |
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bool |
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config CPU_NEED_SOFTALIGN |
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bool |
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config CPU_NO_USER_BKPT |
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bool |
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help |
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For abiv2 we couldn't use "trap 1" as user space bkpt in gdbserver, because |
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abiv2 is 16/32bit instruction set and "trap 1" is 32bit. |
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So we need a 16bit instruction as user space bkpt, and it will cause an illegal |
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instruction exception. |
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In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not. |
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config GENERIC_CALIBRATE_DELAY |
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def_bool y |
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config GENERIC_CSUM |
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def_bool y |
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config GENERIC_HWEIGHT |
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def_bool y |
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config MMU |
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def_bool y |
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config STACKTRACE_SUPPORT |
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def_bool y |
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config TIME_LOW_RES |
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def_bool y |
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config TRACE_IRQFLAGS_SUPPORT |
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def_bool y |
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config CPU_TLB_SIZE |
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int |
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default "128" if (CPU_CK610 || CPU_CK807 || CPU_CK810) |
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default "1024" if (CPU_CK860) |
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config CPU_ASID_BITS |
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int |
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default "8" if (CPU_CK610 || CPU_CK807 || CPU_CK810) |
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default "12" if (CPU_CK860) |
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config L1_CACHE_SHIFT |
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int |
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default "4" if (CPU_CK610) |
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default "5" if (CPU_CK807 || CPU_CK810) |
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default "6" if (CPU_CK860) |
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config ARCH_MMAP_RND_BITS_MIN |
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default 8 |
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# max bits determined by the following formula: |
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# VA_BITS - PAGE_SHIFT - 3 |
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config ARCH_MMAP_RND_BITS_MAX |
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default 17 |
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menu "Processor type and features" |
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choice |
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prompt "CPU MODEL" |
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default CPU_CK807 |
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config CPU_CK610 |
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bool "CSKY CPU ck610" |
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select CPU_NEED_TLBSYNC |
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select CPU_NEED_SOFTALIGN |
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select CPU_NO_USER_BKPT |
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config CPU_CK810 |
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bool "CSKY CPU ck810" |
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select CPU_HAS_HILO |
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select CPU_NEED_TLBSYNC |
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config CPU_CK807 |
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bool "CSKY CPU ck807" |
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select CPU_HAS_HILO |
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config CPU_CK860 |
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bool "CSKY CPU ck860" |
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select CPU_HAS_TLBI |
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select CPU_HAS_CACHEV2 |
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select CPU_HAS_LDSTEX |
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select CPU_HAS_FPUV2 |
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endchoice |
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choice |
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prompt "PAGE OFFSET" |
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default PAGE_OFFSET_80000000 |
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config PAGE_OFFSET_80000000 |
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bool "PAGE OFFSET 2G (user:kernel = 2:2)" |
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config PAGE_OFFSET_A0000000 |
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bool "PAGE OFFSET 2.5G (user:kernel = 2.5:1.5)" |
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endchoice |
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config PAGE_OFFSET |
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hex |
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default 0x80000000 if PAGE_OFFSET_80000000 |
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default 0xa0000000 if PAGE_OFFSET_A0000000 |
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choice |
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prompt "C-SKY PMU type" |
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depends on PERF_EVENTS |
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depends on CPU_CK807 || CPU_CK810 || CPU_CK860 |
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config CPU_PMU_NONE |
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bool "None" |
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config CSKY_PMU_V1 |
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bool "Performance Monitoring Unit Ver.1" |
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endchoice |
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choice |
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prompt "Power Manager Instruction (wait/doze/stop)" |
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default CPU_PM_NONE |
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config CPU_PM_NONE |
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bool "None" |
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config CPU_PM_WAIT |
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bool "wait" |
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config CPU_PM_DOZE |
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bool "doze" |
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config CPU_PM_STOP |
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bool "stop" |
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endchoice |
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menuconfig HAVE_TCM |
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bool "Tightly-Coupled/Sram Memory" |
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select GENERIC_ALLOCATOR |
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help |
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The implementation are not only used by TCM (Tightly-Coupled Meory) |
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but also used by sram on SOC bus. It follow existed linux tcm |
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software interface, so that old tcm application codes could be |
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re-used directly. |
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if HAVE_TCM |
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config ITCM_RAM_BASE |
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hex "ITCM ram base" |
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default 0xffffffff |
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config ITCM_NR_PAGES |
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int "Page count of ITCM size: NR*4KB" |
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range 1 256 |
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default 32 |
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config HAVE_DTCM |
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bool "DTCM Support" |
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config DTCM_RAM_BASE |
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hex "DTCM ram base" |
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depends on HAVE_DTCM |
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default 0xffffffff |
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config DTCM_NR_PAGES |
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int "Page count of DTCM size: NR*4KB" |
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depends on HAVE_DTCM |
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range 1 256 |
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default 32 |
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endif |
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config CPU_HAS_VDSP |
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bool "CPU has VDSP coprocessor" |
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depends on CPU_HAS_FPU && CPU_HAS_FPUV2 |
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config CPU_HAS_FPU |
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bool "CPU has FPU coprocessor" |
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depends on CPU_CK807 || CPU_CK810 || CPU_CK860 |
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config CPU_HAS_ICACHE_INS |
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bool "CPU has Icache invalidate instructions" |
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depends on CPU_HAS_CACHEV2 |
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config CPU_HAS_TEE |
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bool "CPU has Trusted Execution Environment" |
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depends on CPU_CK810 |
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config SMP |
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bool "Symmetric Multi-Processing (SMP) support for C-SKY" |
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depends on CPU_CK860 |
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default n |
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config NR_CPUS |
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int "Maximum number of CPUs (2-32)" |
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range 2 32 |
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depends on SMP |
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default "4" |
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config HIGHMEM |
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bool "High Memory Support" |
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depends on !CPU_CK610 |
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select KMAP_LOCAL |
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default y |
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config FORCE_MAX_ZONEORDER |
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int "Maximum zone order" |
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default "11" |
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config DRAM_BASE |
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hex "DRAM start addr (the same with memory-section in dts)" |
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default 0x0 |
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config HOTPLUG_CPU |
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bool "Support for hot-pluggable CPUs" |
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select GENERIC_IRQ_MIGRATION |
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depends on SMP |
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help |
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Say Y here to allow turning CPUs off and on. CPUs can be |
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controlled through /sys/devices/system/cpu/cpu1/hotplug/target. |
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Say N if you want to disable CPU hotplug. |
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endmenu |
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source "arch/csky/Kconfig.platforms" |
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source "kernel/Kconfig.hz"
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