Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) # For a description of the syntax of this configuration file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) # see Documentation/kbuild/kconfig-language.rst.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) config 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) config 32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) config RISCV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	select ARCH_CLOCKSOURCE_INIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	select ARCH_SUPPORTS_ATOMIC_RMW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	select ARCH_HAS_BINFMT_FLAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 	select ARCH_HAS_DEBUG_VM_PGTABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	select ARCH_HAS_DEBUG_VIRTUAL if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	select ARCH_HAS_DEBUG_WX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	select ARCH_HAS_GCOV_PROFILE_ALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	select ARCH_HAS_GIGANTIC_PAGE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	select ARCH_HAS_KCOV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	select ARCH_HAS_MMIOWB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	select ARCH_HAS_PTE_SPECIAL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	select ARCH_HAS_SET_DIRECT_MAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	select ARCH_HAS_SET_MEMORY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	select ARCH_HAS_STRICT_KERNEL_RWX if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	select ARCH_WANT_FRAME_POINTERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	select ARCH_WANT_HUGE_PMD_SHARE if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	select CLONE_BACKWARDS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	select CLINT_TIMER if !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	select COMMON_CLK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	select EDAC_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	select GENERIC_ARCH_TOPOLOGY if SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	select GENERIC_ATOMIC64 if !64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	select GENERIC_CLOCKEVENTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	select GENERIC_EARLY_IOREMAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	select GENERIC_GETTIMEOFDAY if HAVE_GENERIC_VDSO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	select GENERIC_IOREMAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	select GENERIC_IRQ_MULTI_HANDLER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	select GENERIC_IRQ_SHOW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	select GENERIC_PCI_IOMAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	select GENERIC_PTDUMP if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	select GENERIC_SCHED_CLOCK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	select GENERIC_SMP_IDLE_THREAD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	select GENERIC_STRNCPY_FROM_USER if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	select GENERIC_STRNLEN_USER if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	select GENERIC_TIME_VSYSCALL if MMU && 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	select HANDLE_DOMAIN_IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	select HAVE_ARCH_AUDITSYSCALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	select HAVE_ARCH_JUMP_LABEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	select HAVE_ARCH_JUMP_LABEL_RELATIVE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	select HAVE_ARCH_KASAN if MMU && 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	select HAVE_ARCH_KGDB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	select HAVE_ARCH_KGDB_QXFER_PKT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	select HAVE_ARCH_MMAP_RND_BITS if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	select HAVE_ARCH_SECCOMP_FILTER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	select HAVE_ARCH_TRACEHOOK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	select HAVE_ASM_MODVERSIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	select HAVE_CONTEXT_TRACKING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	select HAVE_DEBUG_KMEMLEAK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	select HAVE_DMA_CONTIGUOUS if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	select HAVE_EBPF_JIT if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	select HAVE_FUTEX_CMPXCHG if FUTEX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	select HAVE_GCC_PLUGINS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	select HAVE_GENERIC_VDSO if MMU && 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	select HAVE_PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	select HAVE_PERF_EVENTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	select HAVE_PERF_REGS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	select HAVE_PERF_USER_STACK_DUMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	select HAVE_STACKPROTECTOR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	select HAVE_SYSCALL_TRACEPOINTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	select IRQ_DOMAIN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	select MODULES_USE_ELF_RELA if MODULES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	select MODULE_SECTIONS if MODULES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	select OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	select OF_EARLY_FLATTREE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	select OF_IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	select PCI_DOMAINS_GENERIC if PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	select PCI_MSI if PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	select RISCV_INTC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	select RISCV_TIMER if RISCV_SBI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	select SPARSE_IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	select SYSCTL_EXCEPTION_TRACE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	select THREAD_INFO_IN_TASK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	select UACCESS_MEMCPY if !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) config ARCH_MMAP_RND_BITS_MIN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	default 18 if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	default 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) # max bits determined by the following formula:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) #  VA_BITS - PAGE_SHIFT - 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) config ARCH_MMAP_RND_BITS_MAX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	default 24 if 64BIT # SV39 based
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	default 17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) # set if we run in machine mode, cleared if we run in supervisor mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) config RISCV_M_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	default !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) # set if we are running in S-mode and can use SBI calls
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) config RISCV_SBI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	depends on !RISCV_M_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) config MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	bool "MMU-based Paged Memory Management Support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	  Select if you want MMU-based virtualised addressing space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	  support by paged memory management. If unsure, say 'Y'.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) config ZONE_DMA32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	default y if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) config VA_BITS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	default 32 if 32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	default 39 if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) config PA_BITS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	default 34 if 32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	default 56 if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) config PAGE_OFFSET
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	hex
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	default 0xC0000000 if 32BIT && MAXPHYSMEM_1GB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	default 0x80000000 if 64BIT && !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	default 0xffffffff80000000 if 64BIT && MAXPHYSMEM_2GB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	default 0xffffffe000000000 if 64BIT && MAXPHYSMEM_128GB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) config KASAN_SHADOW_OFFSET
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	hex
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	depends on KASAN_GENERIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	default 0xdfffffc800000000 if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	default 0xffffffff if 32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) config ARCH_FLATMEM_ENABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) config ARCH_SPARSEMEM_ENABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	depends on MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	select SPARSEMEM_STATIC if 32BIT && SPARSEMEM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	select SPARSEMEM_VMEMMAP_ENABLE if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) config ARCH_SELECT_MEMORY_MODEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	def_bool ARCH_SPARSEMEM_ENABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) config ARCH_WANT_GENERAL_HUGETLB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) config ARCH_SUPPORTS_DEBUG_PAGEALLOC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) config SYS_SUPPORTS_HUGETLBFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	depends on MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) config STACKTRACE_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) config TRACE_IRQFLAGS_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) config GENERIC_BUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	depends on BUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	select GENERIC_BUG_RELATIVE_POINTERS if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) config GENERIC_BUG_RELATIVE_POINTERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) config GENERIC_CALIBRATE_DELAY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) config GENERIC_CSUM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) config GENERIC_HWEIGHT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) config FIX_EARLYCON_MEM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	def_bool MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) config PGTABLE_LEVELS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	default 3 if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	default 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) config LOCKDEP_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) source "arch/riscv/Kconfig.socs"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) menu "Platform type"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) choice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	prompt "Base ISA"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	default ARCH_RV64I
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	  This selects the base ISA that this kernel will target and must match
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	  the target platform.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) config ARCH_RV32I
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	bool "RV32I"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	select 32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	select GENERIC_LIB_ASHLDI3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	select GENERIC_LIB_ASHRDI3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	select GENERIC_LIB_LSHRDI3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	select GENERIC_LIB_UCMPDI2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	select MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) config ARCH_RV64I
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	bool "RV64I"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	select 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && GCC_VERSION >= 50000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	select HAVE_DYNAMIC_FTRACE if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	select HAVE_FTRACE_MCOUNT_RECORD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	select HAVE_FUNCTION_GRAPH_TRACER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	select HAVE_FUNCTION_TRACER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	select SWIOTLB if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) endchoice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) # We must be able to map all physical memory into the kernel, but the compiler
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) # is still a bit more efficient when generating code if it's setup in a manner
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) # such that it can only map 2GiB of memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) choice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	prompt "Kernel Code Model"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	default CMODEL_MEDLOW if 32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	default CMODEL_MEDANY if 64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	config CMODEL_MEDLOW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		bool "medium low code model"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	config CMODEL_MEDANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		bool "medium any code model"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) endchoice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) config MODULE_SECTIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	select HAVE_MOD_ARCH_SPECIFIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) choice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	prompt "Maximum Physical Memory"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	default MAXPHYSMEM_1GB if 32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	default MAXPHYSMEM_2GB if 64BIT && CMODEL_MEDLOW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	default MAXPHYSMEM_128GB if 64BIT && CMODEL_MEDANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	config MAXPHYSMEM_1GB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 		depends on 32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		bool "1GiB"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	config MAXPHYSMEM_2GB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 		depends on 64BIT && CMODEL_MEDLOW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		bool "2GiB"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	config MAXPHYSMEM_128GB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 		depends on 64BIT && CMODEL_MEDANY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		bool "128GiB"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) endchoice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) config SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	bool "Symmetric Multi-Processing"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	  This enables support for systems with more than one CPU.  If
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	  you say N here, the kernel will run on single and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	  multiprocessor machines, but will use only one CPU of a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	  multiprocessor machine. If you say Y here, the kernel will run
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	  on many, but not all, single processor machines. On a single
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	  processor machine, the kernel will run faster if you say N
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	  here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	  If you don't know what to do here, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) config NR_CPUS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	int "Maximum number of CPUs (2-32)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	range 2 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	depends on SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	default "8"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) config HOTPLUG_CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	bool "Support for hot-pluggable CPUs"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	depends on SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	select GENERIC_IRQ_MIGRATION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	  Say Y here to experiment with turning CPUs off and on.  CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	  can be controlled through /sys/devices/system/cpu.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	  Say N if you want to disable CPU hotplug.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) choice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	prompt "CPU Tuning"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	default TUNE_GENERIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) config TUNE_GENERIC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	bool "generic"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) endchoice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) config RISCV_ISA_C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	bool "Emit compressed instructions when building Linux"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	   Adds "C" to the ISA subsets that the toolchain is allowed to emit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	   when building Linux, which results in compressed instructions in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	   Linux binary.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	   If you don't know what to do here, say Y.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) menu "supported PMU type"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	depends on PERF_EVENTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) config RISCV_BASE_PMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	bool "Base Performance Monitoring Unit"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	  A base PMU that serves as a reference implementation and has limited
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	  feature of perf.  It can run on any RISC-V machines so serves as the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	  fallback, but this option can also be disable to reduce kernel size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) endmenu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) config FPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	bool "FPU support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	  Say N here if you want to disable all floating-point related procedure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	  in the kernel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	  If you don't know what to do here, say Y.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) endmenu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) menu "Kernel features"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) source "kernel/Kconfig.hz"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) config RISCV_SBI_V01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	bool "SBI v0.1 support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	depends on RISCV_SBI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	  This config allows kernel to use SBI v0.1 APIs. This will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	  deprecated in future once legacy M-mode software are no longer in use.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) endmenu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) menu "Boot options"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) config CMDLINE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	string "Built-in kernel command line"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	  For most platforms, the arguments for the kernel's command line
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 	  are provided at run-time, during boot. However, there are cases
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	  where either no arguments are being provided or the provided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	  arguments are insufficient or even invalid.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	  When that occurs, it is possible to define a built-in command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 	  line here and choose how the kernel should use it later on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) choice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	prompt "Built-in command line usage" if CMDLINE != ""
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	default CMDLINE_FALLBACK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	  Choose how the kernel will handle the provided built-in command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	  line.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) config CMDLINE_FALLBACK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 	bool "Use bootloader kernel arguments if available"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 	  Use the built-in command line as fallback in case we get nothing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	  during boot. This is the default behaviour.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) config CMDLINE_EXTEND
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	bool "Extend bootloader kernel arguments"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	  The command-line arguments provided during boot will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 	  appended to the built-in command line. This is useful in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 	  cases where the provided arguments are insufficient and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	  you don't want to or cannot modify them.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) config CMDLINE_FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	bool "Always use the default kernel command string"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 	  Always use the built-in command line, even if we get one during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 	  boot. This is useful in case you need to override the provided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 	  command line on systems where you don't have or want control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	  over it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) endchoice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) config EFI_STUB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) config EFI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 	bool "UEFI runtime support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 	depends on OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 	select LIBFDT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 	select UCS2_STRING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	select EFI_PARAMS_FROM_FDT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 	select EFI_STUB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 	select EFI_GENERIC_STUB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 	select EFI_RUNTIME_WRAPPERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 	select RISCV_ISA_C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 	depends on MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 	  This option provides support for runtime services provided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	  by UEFI firmware (such as non-volatile variables, realtime
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	  clock, and platform reset). A UEFI stub is also provided to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 	  allow the kernel to be booted as an EFI application. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 	  is only useful on systems that have UEFI firmware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) endmenu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) config BUILTIN_DTB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 	def_bool n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 	depends on RISCV_M_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 	depends on OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) menu "Power management options"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) source "kernel/power/Kconfig"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) endmenu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) source "drivers/firmware/Kconfig"