1 # SPDX-License-Identifier: GPL-2.0 !! 1 config 64BIT
2 config LOONGARCH !! 2 bool "64-bit kernel" if ARCH = "sparc"
>> 3 default ARCH = "sparc64"
>> 4 help
>> 5 SPARC is a family of RISC microprocessors designed and marketed by
>> 6 Sun Microsystems, incorporated. They are very widely found in Sun
>> 7 workstations and clones.
>> 8
>> 9 Say yes to build a 64-bit kernel - formerly known as sparc64
>> 10 Say no to build a 32-bit kernel - formerly known as sparc
>> 11
>> 12 config SPARC
3 bool 13 bool
4 default y 14 default y
5 select ACPI !! 15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
6 select ACPI_GENERIC_GSI if ACPI <<
7 select ACPI_MCFG if ACPI <<
8 select ACPI_HOTPLUG_CPU if ACPI_PROCES <<
9 select ACPI_PPTT if ACPI <<
10 select ACPI_SYSTEM_POWER_STATES_SUPPOR <<
11 select ARCH_BINFMT_ELF_STATE <<
12 select ARCH_DISABLE_KASAN_INLINE <<
13 select ARCH_ENABLE_MEMORY_HOTPLUG <<
14 select ARCH_ENABLE_MEMORY_HOTREMOVE <<
15 select ARCH_ENABLE_THP_MIGRATION if TR <<
16 select ARCH_HAS_ACPI_TABLE_UPGRADE <<
17 select ARCH_HAS_CPU_FINALIZE_INIT <<
18 select ARCH_HAS_CURRENT_STACK_POINTER <<
19 select ARCH_HAS_DEBUG_VM_PGTABLE <<
20 select ARCH_HAS_FAST_MULTIPLIER <<
21 select ARCH_HAS_FORTIFY_SOURCE <<
22 select ARCH_HAS_KCOV <<
23 select ARCH_HAS_KERNEL_FPU_SUPPORT if <<
24 select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS <<
25 select ARCH_HAS_NON_OVERLAPPING_ADDRES <<
26 select ARCH_HAS_PTE_DEVMAP <<
27 select ARCH_HAS_PTE_SPECIAL <<
28 select ARCH_HAS_SET_MEMORY <<
29 select ARCH_HAS_SET_DIRECT_MAP <<
30 select ARCH_HAS_TICK_BROADCAST if GENE <<
31 select ARCH_INLINE_READ_LOCK if !PREEM <<
32 select ARCH_INLINE_READ_LOCK_BH if !PR <<
33 select ARCH_INLINE_READ_LOCK_IRQ if !P <<
34 select ARCH_INLINE_READ_LOCK_IRQSAVE i <<
35 select ARCH_INLINE_READ_UNLOCK if !PRE <<
36 select ARCH_INLINE_READ_UNLOCK_BH if ! <<
37 select ARCH_INLINE_READ_UNLOCK_IRQ if <<
38 select ARCH_INLINE_READ_UNLOCK_IRQREST <<
39 select ARCH_INLINE_WRITE_LOCK if !PREE <<
40 select ARCH_INLINE_WRITE_LOCK_BH if !P <<
41 select ARCH_INLINE_WRITE_LOCK_IRQ if ! <<
42 select ARCH_INLINE_WRITE_LOCK_IRQSAVE <<
43 select ARCH_INLINE_WRITE_UNLOCK if !PR <<
44 select ARCH_INLINE_WRITE_UNLOCK_BH if <<
45 select ARCH_INLINE_WRITE_UNLOCK_IRQ if <<
46 select ARCH_INLINE_WRITE_UNLOCK_IRQRES <<
47 select ARCH_INLINE_SPIN_TRYLOCK if !PR <<
48 select ARCH_INLINE_SPIN_TRYLOCK_BH if <<
49 select ARCH_INLINE_SPIN_LOCK if !PREEM <<
50 select ARCH_INLINE_SPIN_LOCK_BH if !PR <<
51 select ARCH_INLINE_SPIN_LOCK_IRQ if !P <<
52 select ARCH_INLINE_SPIN_LOCK_IRQSAVE i <<
53 select ARCH_INLINE_SPIN_UNLOCK if !PRE <<
54 select ARCH_INLINE_SPIN_UNLOCK_BH if ! <<
55 select ARCH_INLINE_SPIN_UNLOCK_IRQ if <<
56 select ARCH_INLINE_SPIN_UNLOCK_IRQREST <<
57 select ARCH_KEEP_MEMBLOCK <<
58 select ARCH_MIGHT_HAVE_PC_PARPORT <<
59 select ARCH_MIGHT_HAVE_PC_SERIO 16 select ARCH_MIGHT_HAVE_PC_SERIO
60 select ARCH_SPARSEMEM_ENABLE !! 17 select OF
61 select ARCH_STACKWALK !! 18 select OF_PROMTREE
62 select ARCH_SUPPORTS_ACPI !! 19 select HAVE_IDE
63 select ARCH_SUPPORTS_ATOMIC_RMW !! 20 select HAVE_OPROFILE
64 select ARCH_SUPPORTS_HUGETLBFS !! 21 select HAVE_ARCH_KGDB if !SMP || SPARC64
65 select ARCH_SUPPORTS_INT128 if CC_HAS_ !! 22 select HAVE_ARCH_TRACEHOOK
66 select ARCH_SUPPORTS_LTO_CLANG !! 23 select HAVE_EXIT_THREAD
67 select ARCH_SUPPORTS_LTO_CLANG_THIN !! 24 select SYSCTL_EXCEPTION_TRACE
68 select ARCH_SUPPORTS_NUMA_BALANCING !! 25 select RTC_CLASS
69 select ARCH_USE_BUILTIN_BSWAP !! 26 select RTC_DRV_M48T59
70 select ARCH_USE_CMPXCHG_LOCKREF !! 27 select RTC_SYSTOHC
71 select ARCH_USE_QUEUED_RWLOCKS !! 28 select HAVE_DMA_API_DEBUG
72 select ARCH_USE_QUEUED_SPINLOCKS !! 29 select HAVE_ARCH_JUMP_LABEL if SPARC64
73 select ARCH_WANT_DEFAULT_BPF_JIT <<
74 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
75 select ARCH_WANT_LD_ORPHAN_WARN <<
76 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEM <<
77 select ARCH_WANTS_NO_INSTR <<
78 select ARCH_WANTS_THP_SWAP if HAVE_ARC <<
79 select BUILDTIME_TABLE_SORT <<
80 select COMMON_CLK <<
81 select CPU_PM <<
82 select EFI <<
83 select GENERIC_CLOCKEVENTS <<
84 select GENERIC_CMOS_UPDATE <<
85 select GENERIC_CPU_AUTOPROBE <<
86 select GENERIC_CPU_DEVICES <<
87 select GENERIC_CPU_VULNERABILITIES <<
88 select GENERIC_ENTRY <<
89 select GENERIC_GETTIMEOFDAY <<
90 select GENERIC_IOREMAP if !ARCH_IOREMA <<
91 select GENERIC_IRQ_MATRIX_ALLOCATOR <<
92 select GENERIC_IRQ_MULTI_HANDLER <<
93 select GENERIC_IRQ_PROBE <<
94 select GENERIC_IRQ_SHOW 30 select GENERIC_IRQ_SHOW
95 select GENERIC_LIB_ASHLDI3 !! 31 select ARCH_WANT_IPC_PARSE_VERSION
96 select GENERIC_LIB_ASHRDI3 <<
97 select GENERIC_LIB_CMPDI2 <<
98 select GENERIC_LIB_LSHRDI3 <<
99 select GENERIC_LIB_UCMPDI2 <<
100 select GENERIC_LIB_DEVMEM_IS_ALLOWED <<
101 select GENERIC_PCI_IOMAP 32 select GENERIC_PCI_IOMAP
102 select GENERIC_SCHED_CLOCK !! 33 select HAVE_NMI_WATCHDOG if SPARC64
>> 34 select HAVE_CBPF_JIT if SPARC32
>> 35 select HAVE_EBPF_JIT if SPARC64
>> 36 select HAVE_DEBUG_BUGVERBOSE
103 select GENERIC_SMP_IDLE_THREAD 37 select GENERIC_SMP_IDLE_THREAD
104 select GENERIC_TIME_VSYSCALL !! 38 select GENERIC_CLOCKEVENTS
105 select GENERIC_VDSO_TIME_NS !! 39 select GENERIC_STRNCPY_FROM_USER
106 select GPIOLIB !! 40 select GENERIC_STRNLEN_USER
107 select HAS_IOPORT !! 41 select MODULES_USE_ELF_RELA
108 select HAVE_ARCH_AUDITSYSCALL !! 42 select ODD_RT_SIGACTION
109 select HAVE_ARCH_JUMP_LABEL !! 43 select OLD_SIGSUSPEND
110 select HAVE_ARCH_JUMP_LABEL_RELATIVE !! 44 select ARCH_HAS_SG_CHAIN
111 select HAVE_ARCH_KASAN !! 45 select CPU_NO_EFFICIENT_FFS
112 select HAVE_ARCH_KFENCE !! 46 select LOCKDEP_SMALL if LOCKDEP
113 select HAVE_ARCH_KGDB if PERF_EVENTS !! 47 select ARCH_WANT_RELAX_ORDER
114 select HAVE_ARCH_MMAP_RND_BITS if MMU !! 48
115 select HAVE_ARCH_RANDOMIZE_KSTACK_OFFS !! 49 config SPARC32
116 select HAVE_ARCH_SECCOMP !! 50 def_bool !64BIT
117 select HAVE_ARCH_SECCOMP_FILTER !! 51 select GENERIC_ATOMIC64
118 select HAVE_ARCH_TRACEHOOK !! 52 select CLZ_TAB
>> 53 select HAVE_UID16
>> 54 select OLD_SIGACTION
>> 55
>> 56 config SPARC64
>> 57 def_bool 64BIT
>> 58 select HAVE_FUNCTION_TRACER
>> 59 select HAVE_FUNCTION_GRAPH_TRACER
>> 60 select HAVE_KRETPROBES
>> 61 select HAVE_KPROBES
>> 62 select HAVE_RCU_TABLE_FREE if SMP
>> 63 select HAVE_MEMBLOCK
>> 64 select HAVE_MEMBLOCK_NODE_MAP
119 select HAVE_ARCH_TRANSPARENT_HUGEPAGE 65 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
120 select HAVE_ARCH_USERFAULTFD_MINOR if <<
121 select HAVE_ASM_MODVERSIONS <<
122 select HAVE_CONTEXT_TRACKING_USER <<
123 select HAVE_C_RECORDMCOUNT <<
124 select HAVE_DEBUG_KMEMLEAK <<
125 select HAVE_DEBUG_STACKOVERFLOW <<
126 select HAVE_DMA_CONTIGUOUS <<
127 select HAVE_DYNAMIC_FTRACE 66 select HAVE_DYNAMIC_FTRACE
128 select HAVE_DYNAMIC_FTRACE_WITH_ARGS <<
129 select HAVE_DYNAMIC_FTRACE_WITH_DIRECT <<
130 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
131 select HAVE_EBPF_JIT <<
132 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
133 select HAVE_EXIT_THREAD <<
134 select HAVE_GUP_FAST <<
135 select HAVE_FTRACE_MCOUNT_RECORD 67 select HAVE_FTRACE_MCOUNT_RECORD
136 select HAVE_FUNCTION_ARG_ACCESS_API <<
137 select HAVE_FUNCTION_ERROR_INJECTION <<
138 select HAVE_FUNCTION_GRAPH_RETVAL if H <<
139 select HAVE_FUNCTION_GRAPH_TRACER <<
140 select HAVE_FUNCTION_TRACER <<
141 select HAVE_GCC_PLUGINS <<
142 select HAVE_GENERIC_VDSO <<
143 select HAVE_HW_BREAKPOINT if PERF_EVEN <<
144 select HAVE_IOREMAP_PROT <<
145 select HAVE_IRQ_EXIT_ON_IRQ_STACK <<
146 select HAVE_IRQ_TIME_ACCOUNTING <<
147 select HAVE_KPROBES <<
148 select HAVE_KPROBES_ON_FTRACE <<
149 select HAVE_KRETPROBES <<
150 select HAVE_LIVEPATCH <<
151 select HAVE_MOD_ARCH_SPECIFIC <<
152 select HAVE_NMI <<
153 select HAVE_OBJTOOL if AS_HAS_EXPLICIT <<
154 select HAVE_PCI <<
155 select HAVE_PERF_EVENTS <<
156 select HAVE_PERF_REGS <<
157 select HAVE_PERF_USER_STACK_DUMP <<
158 select HAVE_PREEMPT_DYNAMIC_KEY <<
159 select HAVE_REGS_AND_STACK_ACCESS_API <<
160 select HAVE_RELIABLE_STACKTRACE if UNW <<
161 select HAVE_RETHOOK <<
162 select HAVE_RSEQ <<
163 select HAVE_RUST <<
164 select HAVE_SAMPLE_FTRACE_DIRECT <<
165 select HAVE_SAMPLE_FTRACE_DIRECT_MULTI <<
166 select HAVE_SETUP_PER_CPU_AREA if NUMA <<
167 select HAVE_STACK_VALIDATION if HAVE_O <<
168 select HAVE_STACKPROTECTOR <<
169 select HAVE_SYSCALL_TRACEPOINTS 68 select HAVE_SYSCALL_TRACEPOINTS
170 select HAVE_TIF_NOHZ !! 69 select HAVE_CONTEXT_TRACKING
171 select HAVE_VIRT_CPU_ACCOUNTING_GEN if !! 70 select HAVE_DEBUG_KMEMLEAK
172 select IRQ_FORCED_THREADING <<
173 select IRQ_LOONGARCH_CPU <<
174 select LOCK_MM_AND_FIND_VMA <<
175 select MMU_GATHER_MERGE_VMAS if MMU <<
176 select MODULES_USE_ELF_RELA if MODULES <<
177 select NEED_PER_CPU_EMBED_FIRST_CHUNK <<
178 select NEED_PER_CPU_PAGE_FIRST_CHUNK <<
179 select OF <<
180 select OF_EARLY_FLATTREE <<
181 select PCI <<
182 select PCI_DOMAINS_GENERIC <<
183 select PCI_ECAM if ACPI <<
184 select PCI_LOONGSON <<
185 select PCI_MSI_ARCH_FALLBACKS <<
186 select PCI_QUIRKS <<
187 select PERF_USE_VMALLOC <<
188 select RTC_LIB <<
189 select SPARSE_IRQ 71 select SPARSE_IRQ
190 select SYSCTL_ARCH_UNALIGN_ALLOW !! 72 select RTC_DRV_CMOS
191 select SYSCTL_ARCH_UNALIGN_NO_WARN !! 73 select RTC_DRV_BQ4802
192 select SYSCTL_EXCEPTION_TRACE !! 74 select RTC_DRV_SUN4V
193 select SWIOTLB !! 75 select RTC_DRV_STARFIRE
194 select TRACE_IRQFLAGS_SUPPORT !! 76 select HAVE_PERF_EVENTS
195 select USE_PERCPU_NUMA_NODE_ID !! 77 select PERF_USE_VMALLOC
196 select USER_STACKTRACE_SUPPORT !! 78 select IRQ_PREFLOW_FASTEOI
197 select VDSO_GETRANDOM !! 79 select ARCH_HAVE_NMI_SAFE_CMPXCHG
198 select ZONE_DMA32 !! 80 select HAVE_C_RECORDMCOUNT
199 !! 81 select NO_BOOTMEM
200 config 32BIT !! 82 select HAVE_ARCH_AUDITSYSCALL
201 bool !! 83 select ARCH_SUPPORTS_ATOMIC_RMW
202 !! 84 select HAVE_NMI
203 config 64BIT !! 85 select HAVE_REGS_AND_STACK_ACCESS_API
204 def_bool y <<
205 <<
206 config GENERIC_BUG <<
207 def_bool y <<
208 depends on BUG <<
209 <<
210 config GENERIC_BUG_RELATIVE_POINTERS <<
211 def_bool y <<
212 depends on GENERIC_BUG <<
213 86
214 config GENERIC_CALIBRATE_DELAY !! 87 config ARCH_DEFCONFIG
215 def_bool y !! 88 string
>> 89 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
>> 90 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
216 91
217 config GENERIC_CSUM !! 92 config ARCH_PROC_KCORE_TEXT
218 def_bool y 93 def_bool y
219 94
220 config GENERIC_HWEIGHT !! 95 config ARCH_ATU
221 def_bool y <<
222 <<
223 config L1_CACHE_SHIFT <<
224 int <<
225 default "6" <<
226 <<
227 config LOCKDEP_SUPPORT <<
228 bool 96 bool
229 default y !! 97 default y if SPARC64
230 98
231 config STACKTRACE_SUPPORT !! 99 config ARCH_DMA_ADDR_T_64BIT
232 bool 100 bool
233 default y !! 101 default y if ARCH_ATU
234 <<
235 # MACH_LOONGSON32 and MACH_LOONGSON64 are deli <<
236 # MIPS Loongson code, to preserve Loongson-spe <<
237 # are shared between architectures, and specif <<
238 config MACH_LOONGSON32 <<
239 def_bool 32BIT <<
240 102
241 config MACH_LOONGSON64 !! 103 config IOMMU_HELPER
242 def_bool 64BIT <<
243 <<
244 config FIX_EARLYCON_MEM <<
245 def_bool y <<
246 <<
247 config PGTABLE_2LEVEL <<
248 bool 104 bool
>> 105 default y if SPARC64
249 106
250 config PGTABLE_3LEVEL !! 107 config STACKTRACE_SUPPORT
251 bool 108 bool
>> 109 default y if SPARC64
252 110
253 config PGTABLE_4LEVEL !! 111 config LOCKDEP_SUPPORT
254 bool 112 bool
>> 113 default y if SPARC64
255 114
256 config PGTABLE_LEVELS !! 115 config ARCH_HIBERNATION_POSSIBLE
257 int !! 116 def_bool y if SPARC64
258 default 2 if PGTABLE_2LEVEL <<
259 default 3 if PGTABLE_3LEVEL <<
260 default 4 if PGTABLE_4LEVEL <<
261 117
262 config SCHED_OMIT_FRAME_POINTER !! 118 config AUDIT_ARCH
263 bool 119 bool
264 default y 120 default y
265 121
266 config AS_HAS_EXPLICIT_RELOCS !! 122 config HAVE_SETUP_PER_CPU_AREA
267 def_bool $(as-instr,x:pcalau12i \$t0$( !! 123 def_bool y if SPARC64
268 124
269 config AS_HAS_FCSR_CLASS !! 125 config NEED_PER_CPU_EMBED_FIRST_CHUNK
270 def_bool $(as-instr,movfcsr2gr \$t0$(c !! 126 def_bool y if SPARC64
271 127
272 config AS_HAS_THIN_ADD_SUB !! 128 config NEED_PER_CPU_PAGE_FIRST_CHUNK
273 def_bool $(cc-option,-Wa$(comma)-mthin !! 129 def_bool y if SPARC64
274 130
275 config AS_HAS_LSX_EXTENSION !! 131 config MMU
276 def_bool $(as-instr,vld \$vr0$(comma)\ !! 132 bool
277 !! 133 default y
278 config AS_HAS_LASX_EXTENSION <<
279 def_bool $(as-instr,xvld \$xr0$(comma) <<
280 134
281 config AS_HAS_LBT_EXTENSION !! 135 config HIGHMEM
282 def_bool $(as-instr,movscr2gr \$a0$(co !! 136 bool
>> 137 default y if SPARC32
283 138
284 config AS_HAS_LVZ_EXTENSION !! 139 config ZONE_DMA
285 def_bool $(as-instr,hvcl 0) !! 140 bool
>> 141 default y if SPARC32
286 142
287 menu "Kernel type and options" !! 143 config NEED_DMA_MAP_STATE
>> 144 def_bool y
288 145
289 source "kernel/Kconfig.hz" !! 146 config NEED_SG_DMA_LENGTH
>> 147 def_bool y
290 148
291 choice !! 149 config GENERIC_ISA_DMA
292 prompt "Page Table Layout" !! 150 bool
293 default 16KB_2LEVEL if 32BIT !! 151 default y if SPARC32
294 default 16KB_3LEVEL if 64BIT <<
295 help <<
296 Allows choosing the page table layou <<
297 of page size and page table levels. <<
298 address space are determined by the <<
299 152
300 config 4KB_3LEVEL !! 153 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
301 bool "4KB with 3 levels" !! 154 def_bool y if SPARC64
302 select HAVE_PAGE_SIZE_4KB <<
303 select PGTABLE_3LEVEL <<
304 help <<
305 This option selects 4KB page size wi <<
306 support a maximum of 39 bits of appl <<
307 155
308 config 4KB_4LEVEL !! 156 config PGTABLE_LEVELS
309 bool "4KB with 4 levels" !! 157 default 4 if 64BIT
310 select HAVE_PAGE_SIZE_4KB !! 158 default 3
311 select PGTABLE_4LEVEL <<
312 help <<
313 This option selects 4KB page size wi <<
314 support a maximum of 48 bits of appl <<
315 159
316 config 16KB_2LEVEL !! 160 config ARCH_SUPPORTS_UPROBES
317 bool "16KB with 2 levels" !! 161 def_bool y if SPARC64
318 select HAVE_PAGE_SIZE_16KB <<
319 select PGTABLE_2LEVEL <<
320 help <<
321 This option selects 16KB page size w <<
322 support a maximum of 36 bits of appl <<
323 162
324 config 16KB_3LEVEL !! 163 source "init/Kconfig"
325 bool "16KB with 3 levels" <<
326 select HAVE_PAGE_SIZE_16KB <<
327 select PGTABLE_3LEVEL <<
328 help <<
329 This option selects 16KB page size w <<
330 support a maximum of 47 bits of appl <<
331 164
332 config 64KB_2LEVEL !! 165 source "kernel/Kconfig.freezer"
333 bool "64KB with 2 levels" <<
334 select HAVE_PAGE_SIZE_64KB <<
335 select PGTABLE_2LEVEL <<
336 help <<
337 This option selects 64KB page size w <<
338 support a maximum of 42 bits of appl <<
339 166
340 config 64KB_3LEVEL !! 167 menu "Processor type and features"
341 bool "64KB with 3 levels" <<
342 select HAVE_PAGE_SIZE_64KB <<
343 select PGTABLE_3LEVEL <<
344 help <<
345 This option selects 64KB page size w <<
346 support a maximum of 55 bits of appl <<
347 168
348 endchoice !! 169 config SMP
>> 170 bool "Symmetric multi-processing support"
>> 171 ---help---
>> 172 This enables support for systems with more than one CPU. If you have
>> 173 a system with only one CPU, say N. If you have a system with more
>> 174 than one CPU, say Y.
349 175
350 config CMDLINE !! 176 If you say N here, the kernel will run on uni- and multiprocessor
351 string "Built-in kernel command line" !! 177 machines, but will use only one CPU of a multiprocessor machine. If
352 help !! 178 you say Y here, the kernel will run on many, but not all,
353 For most platforms, the arguments fo !! 179 uniprocessor machines. On a uniprocessor machine, the kernel
354 are provided at run-time, during boo !! 180 will run faster if you say N here.
355 where either no arguments are being <<
356 arguments are insufficient or even i <<
357 181
358 When that occurs, it is possible to !! 182 People using multiprocessor machines who say Y here should also say
359 line here and choose how the kernel !! 183 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 184 Management" code will be disabled if you say Y here.
360 185
361 choice !! 186 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
362 prompt "Kernel command line type" !! 187 available at <http://www.tldp.org/docs.html#howto>.
363 default CMDLINE_BOOTLOADER <<
364 help <<
365 Choose how the kernel will handle th <<
366 line. <<
367 188
368 config CMDLINE_BOOTLOADER !! 189 If you don't know what to do here, say N.
369 bool "Use bootloader kernel arguments <<
370 help <<
371 Prefer the command-line passed by th <<
372 Use the built-in command line as fal <<
373 during boot. This is the default beh <<
374 190
375 config CMDLINE_EXTEND !! 191 config NR_CPUS
376 bool "Use built-in to extend bootloade !! 192 int "Maximum number of CPUs"
377 help !! 193 depends on SMP
378 The command-line arguments provided !! 194 range 2 32 if SPARC32
379 appended to the built-in command lin !! 195 range 2 4096 if SPARC64
380 cases where the provided arguments a !! 196 default 32 if SPARC32
381 you don't want to or cannot modify t !! 197 default 4096 if SPARC64
382 198
383 config CMDLINE_FORCE !! 199 source kernel/Kconfig.hz
384 bool "Always use the built-in kernel c <<
385 help <<
386 Always use the built-in command line <<
387 boot. This is useful in case you nee <<
388 command line on systems where you do <<
389 over it. <<
390 200
391 endchoice !! 201 config RWSEM_GENERIC_SPINLOCK
>> 202 bool
>> 203 default y if SPARC32
392 204
393 config BUILTIN_DTB !! 205 config RWSEM_XCHGADD_ALGORITHM
394 bool "Enable built-in dtb in kernel" !! 206 bool
395 depends on OF !! 207 default y if SPARC64
396 help <<
397 Some existing systems do not provide <<
398 the kernel at boot time. Let's provi <<
399 kernel, keyed by the dts filename, c <<
400 208
401 Built-in DTBs are generic enough and !! 209 config GENERIC_HWEIGHT
>> 210 bool
>> 211 default y
402 212
403 config BUILTIN_DTB_NAME !! 213 config GENERIC_CALIBRATE_DELAY
404 string "Source file for built-in dtb" !! 214 bool
405 depends on BUILTIN_DTB !! 215 default y
406 help <<
407 Base name (without suffix, relative <<
408 for the DTS file that will be used t <<
409 the kernel. <<
410 216
411 config DMI !! 217 config ARCH_MAY_HAVE_PC_FDC
412 bool "Enable DMI scanning" !! 218 bool
413 select DMI_SCAN_MACHINE_NON_EFI_FALLBA <<
414 default y 219 default y
415 help <<
416 This enables SMBIOS/DMI feature for <<
417 DMI to identify machine quirks. <<
418 220
419 config EFI !! 221 config EMULATED_CMPXCHG
420 bool "EFI runtime service support" !! 222 bool
421 select UCS2_STRING !! 223 default y if SPARC32
422 select EFI_RUNTIME_WRAPPERS <<
423 help 224 help
424 This enables the kernel to use EFI r !! 225 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
425 available (such as the EFI variable !! 226 is emulated, and therefore it is not completely atomic.
426 227
427 config EFI_STUB !! 228 # Makefile helpers
428 bool "EFI boot stub support" !! 229 config SPARC32_SMP
>> 230 bool
429 default y 231 default y
430 depends on EFI !! 232 depends on SPARC32 && SMP
431 select EFI_GENERIC_STUB <<
432 help <<
433 This kernel feature allows the kerne <<
434 EFI firmware without the use of a bo <<
435 233
436 config SCHED_SMT !! 234 config SPARC64_SMP
437 bool "SMT scheduler support" !! 235 bool
438 depends on SMP <<
439 default y 236 default y
440 help !! 237 depends on SPARC64 && SMP
441 Improves scheduler's performance whe <<
442 threads in one physical core. <<
443 238
444 config SMP !! 239 config EARLYFB
445 bool "Multi-Processing support" !! 240 bool "Support for early boot text console"
>> 241 default y
>> 242 depends on SPARC64
446 help 243 help
447 This enables support for systems wit !! 244 Say Y here to enable a faster early framebuffer boot console.
448 a system with only one CPU, say N. I <<
449 than one CPU, say Y. <<
450 245
451 If you say N here, the kernel will r !! 246 config SECCOMP
452 machines, but will use only one CPU !! 247 bool "Enable seccomp to safely compute untrusted bytecode"
453 you say Y here, the kernel will run !! 248 depends on SPARC64 && PROC_FS
454 uniprocessor machines. On a uniproce !! 249 default y
455 will run faster if you say N here. !! 250 help
>> 251 This kernel feature is useful for number crunching applications
>> 252 that may need to compute untrusted bytecode during their
>> 253 execution. By using pipes or other transports made available to
>> 254 the process as file descriptors supporting the read/write
>> 255 syscalls, it's possible to isolate those applications in
>> 256 their own address space using seccomp. Once seccomp is
>> 257 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 258 and the task is only allowed to execute a few safe syscalls
>> 259 defined by each seccomp mode.
456 260
457 See also the SMP-HOWTO available at !! 261 If unsure, say Y. Only embedded should say N here.
458 <<
459 If you don't know what to do here, s <<
460 262
461 config HOTPLUG_CPU 263 config HOTPLUG_CPU
462 bool "Support for hot-pluggable CPUs" 264 bool "Support for hot-pluggable CPUs"
463 depends on SMP !! 265 depends on SPARC64 && SMP
464 select GENERIC_IRQ_MIGRATION <<
465 help 266 help
466 Say Y here to allow turning CPUs off !! 267 Say Y here to experiment with turning CPUs off and on. CPUs
467 controlled through /sys/devices/syst !! 268 can be controlled through /sys/devices/system/cpu/cpu#.
468 (Note: power management support will <<
469 automatically on SMP systems. ) <<
470 Say N if you want to disable CPU hot 269 Say N if you want to disable CPU hotplug.
471 270
472 config NR_CPUS !! 271 if SPARC64
473 int "Maximum number of CPUs (2-256)" !! 272 source "drivers/cpufreq/Kconfig"
474 range 2 256 !! 273 endif
475 depends on SMP !! 274
476 default "64" !! 275 config US3_MC
>> 276 tristate "UltraSPARC-III Memory Controller driver"
>> 277 depends on SPARC64
>> 278 default y
477 help 279 help
478 This allows you to specify the maxim !! 280 This adds a driver for the UltraSPARC-III memory controller.
479 kernel will support. !! 281 Loading this driver allows exact mnemonic strings to be
>> 282 printed in the event of a memory error, so that the faulty DIMM
>> 283 on the motherboard can be matched to the error.
>> 284
>> 285 If in doubt, say Y, as this information can be very useful.
>> 286
>> 287 # Global things across all Sun machines.
>> 288 config GENERIC_LOCKBREAK
>> 289 bool
>> 290 default y
>> 291 depends on SPARC64 && SMP && PREEMPT
480 292
481 config NUMA 293 config NUMA
482 bool "NUMA Support" !! 294 bool "NUMA support"
483 select SMP !! 295 depends on SPARC64 && SMP
484 help <<
485 Say Y to compile the kernel with NUM <<
486 support. This option improves perfo <<
487 than one NUMA node; on single node s <<
488 to leave it disabled. <<
489 296
490 config NODES_SHIFT 297 config NODES_SHIFT
491 int !! 298 int "Maximum NUMA Nodes (as a power of 2)"
492 default "6" !! 299 range 4 5 if SPARC64
493 depends on NUMA !! 300 default "5"
>> 301 depends on NEED_MULTIPLE_NODES
>> 302 help
>> 303 Specify the maximum number of NUMA Nodes available on the target
>> 304 system. Increases memory reserved to accommodate various tables.
>> 305
>> 306 # Some NUMA nodes have memory ranges that span
>> 307 # other nodes. Even though a pfn is valid and
>> 308 # between a node's start and end pfns, it may not
>> 309 # reside on that node. See memmap_init_zone()
>> 310 # for details.
>> 311 config NODES_SPAN_OTHER_NODES
>> 312 def_bool y
>> 313 depends on NEED_MULTIPLE_NODES
494 314
495 config ARCH_FORCE_MAX_ORDER !! 315 config ARCH_SELECT_MEMORY_MODEL
>> 316 def_bool y if SPARC64
>> 317
>> 318 config ARCH_SPARSEMEM_ENABLE
>> 319 def_bool y if SPARC64
>> 320 select SPARSEMEM_VMEMMAP_ENABLE
>> 321
>> 322 config ARCH_SPARSEMEM_DEFAULT
>> 323 def_bool y if SPARC64
>> 324
>> 325 config FORCE_MAX_ZONEORDER
496 int "Maximum zone order" 326 int "Maximum zone order"
497 default "13" if PAGE_SIZE_64KB !! 327 default "13"
498 default "11" if PAGE_SIZE_16KB <<
499 default "10" <<
500 help 328 help
501 The kernel memory allocator divides 329 The kernel memory allocator divides physically contiguous memory
502 blocks into "zones", where each zone 330 blocks into "zones", where each zone is a power of two number of
503 pages. This option selects the larg 331 pages. This option selects the largest power of two that the kernel
504 keeps in the memory allocator. If y 332 keeps in the memory allocator. If you need to allocate very large
505 blocks of physically contiguous memo 333 blocks of physically contiguous memory, then you may need to
506 increase this value. 334 increase this value.
507 335
508 The page size is not necessarily 4KB !! 336 This config option is actually maximum order plus one. For example,
509 when choosing a value for this optio !! 337 a value of 13 means that the largest free memory block is 2^12 pages.
>> 338
>> 339 source "mm/Kconfig"
>> 340
>> 341 if SPARC64
>> 342 source "kernel/power/Kconfig"
>> 343 endif
510 344
511 config ARCH_IOREMAP !! 345 config SCHED_SMT
512 bool "Enable LoongArch DMW-based iorem !! 346 bool "SMT (Hyperthreading) scheduler support"
>> 347 depends on SPARC64 && SMP
>> 348 default y
513 help 349 help
514 We use generic TLB-based ioremap() b !! 350 SMT scheduler support improves the CPU scheduler's decision making
515 protection support. However, you can !! 351 when dealing with SPARC cpus at a cost of slightly increased overhead
516 ioremap() for better performance. !! 352 in some places. If unsure say N here.
517 353
518 config ARCH_WRITECOMBINE !! 354 config SCHED_MC
519 bool "Enable WriteCombine (WUC) for io !! 355 bool "Multi-core scheduler support"
>> 356 depends on SPARC64 && SMP
>> 357 default y
520 help 358 help
521 LoongArch maintains cache coherency !! 359 Multi-core scheduler support improves the CPU scheduler's decision
522 with LS7A chipsets the WUC attribute !! 360 making when dealing with multi-core CPU chips at a cost of slightly
523 is similar to WriteCombine) is out o !! 361 increased overhead in some places. If unsure say N here.
524 machanism for PCIe devices (this is <<
525 may be fixed in newer chipsets). <<
526 362
527 This means WUC can only used for wri !! 363 source "kernel/Kconfig.preempt"
528 this option is disabled by default, <<
529 SUC for ioremap(). You can enable th <<
530 to run on hardware without this bug. <<
531 364
532 You can override this setting via wr !! 365 config CMDLINE_BOOL
>> 366 bool "Default bootloader kernel arguments"
>> 367 depends on SPARC64
533 368
534 config ARCH_STRICT_ALIGN !! 369 config CMDLINE
535 bool "Enable -mstrict-align to prevent !! 370 string "Initial kernel command string"
536 default y !! 371 depends on CMDLINE_BOOL
537 help !! 372 default "console=ttyS0,9600 root=/dev/sda1"
538 Not all LoongArch cores support h/w !! 373 help
539 -mstrict-align build parameter to pr !! 374 Say Y here if you want to be able to pass default arguments to
>> 375 the kernel. This will be overridden by the bootloader, if you
>> 376 use one (such as SILO). This is most useful if you want to boot
>> 377 a kernel from TFTP, and want default options to be available
>> 378 with having them passed on the command line.
>> 379
>> 380 NOTE: This option WILL override the PROM bootargs setting!
>> 381
>> 382 config SUN_PM
>> 383 bool
>> 384 default y if SPARC32
>> 385 help
>> 386 Enable power management and CPU standby features on supported
>> 387 SPARC platforms.
>> 388
>> 389 config SPARC_LED
>> 390 tristate "Sun4m LED driver"
>> 391 depends on SPARC32
>> 392 help
>> 393 This driver toggles the front-panel LED on sun4m systems
>> 394 in a user-specifiable manner. Its state can be probed
>> 395 by reading /proc/led and its blinking mode can be changed
>> 396 via writes to /proc/led
>> 397
>> 398 config SERIAL_CONSOLE
>> 399 bool
>> 400 depends on SPARC32
>> 401 default y
>> 402 ---help---
>> 403 If you say Y here, it will be possible to use a serial port as the
>> 404 system console (the system console is the device which receives all
>> 405 kernel messages and warnings and which allows logins in single user
>> 406 mode). This could be useful if some terminal or printer is connected
>> 407 to that serial port.
>> 408
>> 409 Even if you say Y here, the currently visible virtual console
>> 410 (/dev/tty0) will still be used as the system console by default, but
>> 411 you can alter that using a kernel command line option such as
>> 412 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 413 your boot loader (silo) about how to pass options to the kernel at
>> 414 boot time.)
>> 415
>> 416 If you don't have a graphics card installed and you say Y here, the
>> 417 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 418 system console.
>> 419
>> 420 If unsure, say N.
>> 421
>> 422 config SPARC_LEON
>> 423 bool "Sparc Leon processor family"
>> 424 depends on SPARC32
>> 425 select USB_EHCI_BIG_ENDIAN_MMIO
>> 426 select USB_EHCI_BIG_ENDIAN_DESC
>> 427 ---help---
>> 428 If you say Y here if you are running on a SPARC-LEON processor.
>> 429 The LEON processor is a synthesizable VHDL model of the
>> 430 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 431 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 432 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 433 toolchain at www.gaisler.com.
>> 434
>> 435 if SPARC_LEON
>> 436 menu "U-Boot options"
>> 437
>> 438 config UBOOT_LOAD_ADDR
>> 439 hex "uImage Load Address"
>> 440 default 0x40004000
>> 441 ---help---
>> 442 U-Boot kernel load address, the address in physical address space
>> 443 where u-boot will place the Linux kernel before booting it.
>> 444 This address is normally the base address of main memory + 0x4000.
>> 445
>> 446 config UBOOT_FLASH_ADDR
>> 447 hex "uImage.o Load Address"
>> 448 default 0x00080000
>> 449 ---help---
>> 450 Optional setting only affecting the uImage.o ELF-image used to
>> 451 download the uImage file to the target using a ELF-loader other than
>> 452 U-Boot. It may for example be used to download an uImage to FLASH with
>> 453 the GRMON utility before even starting u-boot.
>> 454
>> 455 config UBOOT_ENTRY_ADDR
>> 456 hex "uImage Entry Address"
>> 457 default 0xf0004000
>> 458 ---help---
>> 459 Do not change this unless you know what you're doing. This is
>> 460 hardcoded by the SPARC32 and LEON port.
540 461
541 CPUs with h/w unaligned access suppo !! 462 This is the virtual address u-boot jumps to when booting the Linux
542 Loongson-2K2000/2K3000/3A5000/3C5000 !! 463 Kernel.
543 464
544 CPUs without h/w unaligned access su !! 465 endmenu
545 Loongson-2K500/2K1000. !! 466 endif
546 467
547 This option is enabled by default to !! 468 endmenu
548 on all LoongArch systems. But you ca <<
549 to run kernel only on systems with h <<
550 order to optimise for performance. <<
551 469
552 config CPU_HAS_FPU !! 470 menu "Bus options (PCI etc.)"
>> 471 config SBUS
553 bool 472 bool
554 default y 473 default y
555 474
556 config CPU_HAS_LSX !! 475 config SBUSCHAR
557 bool "Support for the Loongson SIMD Ex !! 476 bool
558 depends on AS_HAS_LSX_EXTENSION !! 477 default y
559 help <<
560 Loongson SIMD Extension (LSX) introd <<
561 and a set of SIMD instructions to op <<
562 is enabled the kernel will support a <<
563 vector register contexts. If you kno <<
564 running on CPUs which do not support <<
565 not be making use of it then you may <<
566 the size & complexity of your kernel <<
567 478
568 If unsure, say Y. !! 479 config SUN_LDOMS
>> 480 bool "Sun Logical Domains support"
>> 481 depends on SPARC64
>> 482 help
>> 483 Say Y here is you want to support virtual devices via
>> 484 Logical Domains.
569 485
570 config CPU_HAS_LASX !! 486 config PCI
571 bool "Support for the Loongson Advance !! 487 bool "Support for PCI and PS/2 keyboard/mouse"
572 depends on CPU_HAS_LSX <<
573 depends on AS_HAS_LASX_EXTENSION <<
574 help 488 help
575 Loongson Advanced SIMD Extension (LA !! 489 Find out whether your system includes a PCI bus. PCI is the name of
576 registers and a set of SIMD instruct !! 490 a bus system, i.e. the way the CPU talks to the other stuff inside
577 option is enabled the kernel will su !! 491 your box. If you say Y here, the kernel will include drivers and
578 vector register contexts. If you kno !! 492 infrastructure code to support PCI bus devices.
579 running on CPUs which do not support <<
580 not be making use of it then you may <<
581 the size & complexity of your kernel <<
582 493
583 If unsure, say Y. !! 494 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
>> 495 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
>> 496 All of these platforms are extremely obscure, so say N if unsure.
584 497
585 config CPU_HAS_LBT !! 498 config PCI_DOMAINS
586 bool "Support for the Loongson Binary !! 499 def_bool PCI if SPARC64
587 depends on AS_HAS_LBT_EXTENSION <<
588 help <<
589 Loongson Binary Translation (LBT) in <<
590 to SCR3), x86/ARM eflags (eflags) an <<
591 Enabling this option allows the kern <<
592 specific to LBT. <<
593 500
594 If you want to use this feature, suc !! 501 config PCI_SYSCALL
595 Translator (LAT), say Y. !! 502 def_bool PCI
596 503
597 config CPU_HAS_PREFETCH !! 504 config PCIC_PCI
598 bool 505 bool
>> 506 depends on PCI && SPARC32 && !SPARC_LEON
599 default y 507 default y
600 508
601 config ARCH_SUPPORTS_KEXEC !! 509 config LEON_PCI
602 def_bool y !! 510 bool
603 !! 511 depends on PCI && SPARC_LEON
604 config ARCH_SUPPORTS_CRASH_DUMP !! 512 default y
605 def_bool y <<
606 <<
607 config ARCH_SELECTS_CRASH_DUMP <<
608 def_bool y <<
609 depends on CRASH_DUMP <<
610 select RELOCATABLE <<
611 <<
612 config ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATIO <<
613 def_bool CRASH_RESERVE <<
614 513
615 config RELOCATABLE !! 514 config SPARC_GRPCI1
616 bool "Relocatable kernel" !! 515 bool "GRPCI Host Bridge Support"
617 select ARCH_HAS_RELR !! 516 depends on LEON_PCI
>> 517 default y
618 help 518 help
619 This builds the kernel as a Position !! 519 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
620 which retains all relocation metadat !! 520 PCI host controller is typically found in GRLIB SPARC32/LEON
621 the kernel binary at runtime to a di !! 521 systems. The driver has one property (all_pci_errors) controlled
622 its link address. !! 522 from the bootloader that makes the GRPCI to generate interrupts
>> 523 on detected PCI Parity and System errors.
623 524
624 config RANDOMIZE_BASE !! 525 config SPARC_GRPCI2
625 bool "Randomize the address of the ker !! 526 bool "GRPCI2 Host Bridge Support"
626 depends on RELOCATABLE !! 527 depends on LEON_PCI
>> 528 default y
627 help 529 help
628 Randomizes the physical and virtual !! 530 Say Y here to include the GRPCI2 Host Bridge Driver.
629 kernel image is loaded, as a securi <<
630 deters exploit attempts relying on <<
631 of kernel internals. <<
632 531
633 The kernel will be offset by up to !! 532 source "drivers/pci/Kconfig"
634 533
635 If unsure, say N. !! 534 source "drivers/pcmcia/Kconfig"
636 535
637 config RANDOMIZE_BASE_MAX_OFFSET !! 536 config SUN_OPENPROMFS
638 hex "Maximum KASLR offset" if EXPERT !! 537 tristate "Openprom tree appears in /proc/openprom"
639 depends on RANDOMIZE_BASE <<
640 range 0x0 0x10000000 <<
641 default "0x01000000" <<
642 help 538 help
643 When KASLR is active, this provides !! 539 If you say Y, the OpenPROM device tree will be available as a
644 be applied to the kernel image. It s !! 540 virtual file system, which you can mount to /proc/openprom by "mount
645 amount of physical RAM available in !! 541 -t openpromfs none /proc/openprom".
646 542
647 This is limited by the size of the l !! 543 To compile the /proc/openprom support as a module, choose M here: the
>> 544 module will be called openpromfs.
648 545
649 source "kernel/livepatch/Kconfig" !! 546 Only choose N if you know in advance that you will not need to modify
>> 547 OpenPROM settings on the running system.
650 548
651 config PARAVIRT !! 549 # Makefile helpers
652 bool "Enable paravirtualization code" !! 550 config SPARC64_PCI
653 depends on AS_HAS_LVZ_EXTENSION !! 551 bool
654 help !! 552 default y
655 This changes the kernel so it can mo !! 553 depends on SPARC64 && PCI
656 under a hypervisor, potentially impr <<
657 over full virtualization. However, <<
658 the kernel is theoretically slower a <<
659 <<
660 config PARAVIRT_TIME_ACCOUNTING <<
661 bool "Paravirtual steal time accountin <<
662 depends on PARAVIRT <<
663 help <<
664 Select this option to enable fine gr <<
665 accounting. Time spent executing oth <<
666 the current vCPU is discounted from <<
667 that, there can be a small performan <<
668 554
669 If in doubt, say N here. !! 555 config SPARC64_PCI_MSI
>> 556 bool
>> 557 default y
>> 558 depends on SPARC64_PCI && PCI_MSI
670 559
671 endmenu 560 endmenu
672 561
673 config ARCH_SELECT_MEMORY_MODEL !! 562 menu "Executable file formats"
674 def_bool y <<
675 <<
676 config ARCH_FLATMEM_ENABLE <<
677 def_bool y <<
678 depends on !NUMA <<
679 <<
680 config ARCH_SPARSEMEM_ENABLE <<
681 def_bool y <<
682 select SPARSEMEM_VMEMMAP_ENABLE <<
683 help <<
684 Say Y to support efficient handling <<
685 for architectures which are either N <<
686 or have huge holes in the physical a <<
687 See <file:Documentation/mm/numa.rst> <<
688 563
689 config ARCH_MEMORY_PROBE !! 564 source "fs/Kconfig.binfmt"
690 def_bool y <<
691 depends on MEMORY_HOTPLUG <<
692 565
693 config MMU !! 566 config COMPAT
694 bool 567 bool
>> 568 depends on SPARC64
695 default y 569 default y
>> 570 select COMPAT_BINFMT_ELF
>> 571 select HAVE_UID16
>> 572 select ARCH_WANT_OLD_COMPAT_IPC
>> 573 select COMPAT_OLD_SIGACTION
696 574
697 config ARCH_MMAP_RND_BITS_MIN !! 575 config SYSVIPC_COMPAT
698 default 12 !! 576 bool
>> 577 depends on COMPAT && SYSVIPC
>> 578 default y
699 579
700 config ARCH_MMAP_RND_BITS_MAX !! 580 endmenu
701 default 18 <<
702 581
703 config ARCH_SUPPORTS_UPROBES !! 582 source "net/Kconfig"
704 def_bool y <<
705 583
706 config KASAN_SHADOW_OFFSET !! 584 source "drivers/Kconfig"
707 hex <<
708 default 0x0 <<
709 depends on KASAN <<
710 585
711 menu "Power management options" !! 586 source "drivers/sbus/char/Kconfig"
712 587
713 config ARCH_SUSPEND_POSSIBLE !! 588 source "fs/Kconfig"
714 def_bool y <<
715 589
716 config ARCH_HIBERNATION_POSSIBLE !! 590 source "arch/sparc/Kconfig.debug"
717 def_bool y <<
718 591
719 source "kernel/power/Kconfig" !! 592 source "security/Kconfig"
720 source "drivers/acpi/Kconfig" <<
721 source "drivers/cpufreq/Kconfig" <<
722 593
723 endmenu !! 594 source "crypto/Kconfig"
724 595
725 source "arch/loongarch/kvm/Kconfig" !! 596 source "lib/Kconfig"
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