1 # SPDX-License-Identifier: GPL-2.0 !! 1 config 64BIT
2 config XTENSA !! 2 bool "64-bit kernel" if ARCH = "sparc"
3 def_bool y !! 3 default ARCH = "sparc64"
4 select ARCH_32BIT_OFF_T !! 4 help
5 select ARCH_HAS_CPU_CACHE_ALIASING !! 5 SPARC is a family of RISC microprocessors designed and marketed by
6 select ARCH_HAS_BINFMT_FLAT if !MMU !! 6 Sun Microsystems, incorporated. They are very widely found in Sun
7 select ARCH_HAS_CURRENT_STACK_POINTER !! 7 workstations and clones.
8 select ARCH_HAS_DEBUG_VM_PGTABLE !! 8
9 select ARCH_HAS_DMA_PREP_COHERENT if M !! 9 Say yes to build a 64-bit kernel - formerly known as sparc64
10 select ARCH_HAS_GCOV_PROFILE_ALL !! 10 Say no to build a 32-bit kernel - formerly known as sparc
11 select ARCH_HAS_KCOV !! 11
12 select ARCH_HAS_SYNC_DMA_FOR_CPU if MM !! 12 config SPARC
13 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if !! 13 bool
14 select ARCH_HAS_DMA_SET_UNCACHED if MM !! 14 default y
15 select ARCH_HAS_STRNCPY_FROM_USER if ! !! 15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
16 select ARCH_HAS_STRNLEN_USER !! 16 select ARCH_MIGHT_HAVE_PC_SERIO
17 select ARCH_NEED_CMPXCHG_1_EMU !! 17 select OF
18 select ARCH_USE_MEMTEST !! 18 select OF_PROMTREE
19 select ARCH_USE_QUEUED_RWLOCKS !! 19 select HAVE_IDE
20 select ARCH_USE_QUEUED_SPINLOCKS !! 20 select HAVE_OPROFILE
21 select ARCH_WANT_IPC_PARSE_VERSION !! 21 select HAVE_ARCH_KGDB if !SMP || SPARC64
22 select BUILDTIME_TABLE_SORT <<
23 select CLONE_BACKWARDS <<
24 select COMMON_CLK <<
25 select DMA_NONCOHERENT_MMAP if MMU <<
26 select GENERIC_ATOMIC64 <<
27 select GENERIC_IRQ_SHOW <<
28 select GENERIC_LIB_CMPDI2 <<
29 select GENERIC_LIB_MULDI3 <<
30 select GENERIC_LIB_UCMPDI2 <<
31 select GENERIC_PCI_IOMAP <<
32 select GENERIC_SCHED_CLOCK <<
33 select GENERIC_IOREMAP if MMU <<
34 select HAVE_ARCH_AUDITSYSCALL <<
35 select HAVE_ARCH_JUMP_LABEL if !XIP_KE <<
36 select HAVE_ARCH_KASAN if MMU && !XIP_ <<
37 select HAVE_ARCH_KCSAN <<
38 select HAVE_ARCH_SECCOMP_FILTER <<
39 select HAVE_ARCH_TRACEHOOK 22 select HAVE_ARCH_TRACEHOOK
40 select HAVE_ASM_MODVERSIONS <<
41 select HAVE_CONTEXT_TRACKING_USER <<
42 select HAVE_DEBUG_KMEMLEAK <<
43 select HAVE_DMA_CONTIGUOUS <<
44 select HAVE_EXIT_THREAD 23 select HAVE_EXIT_THREAD
>> 24 select SYSCTL_EXCEPTION_TRACE
>> 25 select RTC_CLASS
>> 26 select RTC_DRV_M48T59
>> 27 select RTC_SYSTOHC
>> 28 select HAVE_DMA_API_DEBUG
>> 29 select HAVE_ARCH_JUMP_LABEL if SPARC64
>> 30 select GENERIC_IRQ_SHOW
>> 31 select ARCH_WANT_IPC_PARSE_VERSION
>> 32 select GENERIC_PCI_IOMAP
>> 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
>> 37 select GENERIC_SMP_IDLE_THREAD
>> 38 select GENERIC_CLOCKEVENTS
>> 39 select GENERIC_STRNCPY_FROM_USER
>> 40 select GENERIC_STRNLEN_USER
>> 41 select MODULES_USE_ELF_RELA
>> 42 select ODD_RT_SIGACTION
>> 43 select OLD_SIGSUSPEND
>> 44 select ARCH_HAS_SG_CHAIN
>> 45 select CPU_NO_EFFICIENT_FFS
>> 46 select LOCKDEP_SMALL if LOCKDEP
>> 47
>> 48 config SPARC32
>> 49 def_bool !64BIT
>> 50 select ARCH_HAS_CPU_FINALIZE_INIT if !SMP
>> 51 select GENERIC_ATOMIC64
>> 52 select CLZ_TAB
>> 53 select HAVE_UID16
>> 54 select OLD_SIGACTION
>> 55
>> 56 config SPARC64
>> 57 def_bool 64BIT
45 select HAVE_FUNCTION_TRACER 58 select HAVE_FUNCTION_TRACER
46 select HAVE_GCC_PLUGINS if GCC_VERSION !! 59 select HAVE_FUNCTION_GRAPH_TRACER
47 select HAVE_HW_BREAKPOINT if PERF_EVEN !! 60 select HAVE_KRETPROBES
48 select HAVE_IRQ_TIME_ACCOUNTING !! 61 select HAVE_KPROBES
49 select HAVE_PAGE_SIZE_4KB !! 62 select HAVE_RCU_TABLE_FREE if SMP
50 select HAVE_PCI !! 63 select HAVE_MEMBLOCK
51 select HAVE_PERF_EVENTS !! 64 select HAVE_MEMBLOCK_NODE_MAP
52 select HAVE_STACKPROTECTOR !! 65 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 66 select HAVE_DYNAMIC_FTRACE
>> 67 select HAVE_FTRACE_MCOUNT_RECORD
53 select HAVE_SYSCALL_TRACEPOINTS 68 select HAVE_SYSCALL_TRACEPOINTS
54 select HAVE_VIRT_CPU_ACCOUNTING_GEN !! 69 select HAVE_CONTEXT_TRACKING
55 select IRQ_DOMAIN !! 70 select HAVE_DEBUG_KMEMLEAK
56 select LOCK_MM_AND_FIND_VMA !! 71 select SPARSE_IRQ
57 select MODULES_USE_ELF_RELA !! 72 select RTC_DRV_CMOS
>> 73 select RTC_DRV_BQ4802
>> 74 select RTC_DRV_SUN4V
>> 75 select RTC_DRV_STARFIRE
>> 76 select HAVE_PERF_EVENTS
58 select PERF_USE_VMALLOC 77 select PERF_USE_VMALLOC
59 select TRACE_IRQFLAGS_SUPPORT !! 78 select IRQ_PREFLOW_FASTEOI
60 help !! 79 select ARCH_HAVE_NMI_SAFE_CMPXCHG
61 Xtensa processors are 32-bit RISC ma !! 80 select HAVE_C_RECORDMCOUNT
62 primarily for embedded systems. The !! 81 select NO_BOOTMEM
63 configurable and extensible. The Li !! 82 select HAVE_ARCH_AUDITSYSCALL
64 architecture supports all processor !! 83 select ARCH_SUPPORTS_ATOMIC_RMW
65 with reasonable minimum requirements !! 84 select HAVE_NMI
66 a home page at <http://www.linux-xte !! 85 select HAVE_REGS_AND_STACK_ACCESS_API
>> 86 select ARCH_USE_QUEUED_RWLOCKS
>> 87 select ARCH_USE_QUEUED_SPINLOCKS
67 88
68 config GENERIC_HWEIGHT !! 89 config ARCH_DEFCONFIG
69 def_bool y !! 90 string
>> 91 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
>> 92 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
70 93
71 config ARCH_HAS_ILOG2_U32 !! 94 config ARCH_PROC_KCORE_TEXT
72 def_bool n !! 95 def_bool y
73 96
74 config ARCH_HAS_ILOG2_U64 !! 97 config CPU_BIG_ENDIAN
75 def_bool n !! 98 def_bool y
76 99
77 config ARCH_MTD_XIP !! 100 config CPU_BIG_ENDIAN
78 def_bool y 101 def_bool y
79 102
80 config NO_IOPORT_MAP !! 103 config ARCH_ATU
81 def_bool n !! 104 bool
>> 105 default y if SPARC64
82 106
83 config HZ !! 107 config ARCH_DMA_ADDR_T_64BIT
84 int !! 108 bool
85 default 100 !! 109 default y if ARCH_ATU
86 110
87 config LOCKDEP_SUPPORT !! 111 config IOMMU_HELPER
88 def_bool y !! 112 bool
>> 113 default y if SPARC64
89 114
90 config STACKTRACE_SUPPORT 115 config STACKTRACE_SUPPORT
91 def_bool y !! 116 bool
>> 117 default y if SPARC64
92 118
93 config MMU !! 119 config LOCKDEP_SUPPORT
94 def_bool n !! 120 bool
95 select PFAULT !! 121 default y if SPARC64
96 122
97 config HAVE_XTENSA_GPIO32 !! 123 config ARCH_HIBERNATION_POSSIBLE
98 def_bool n !! 124 def_bool y if SPARC64
99 125
100 config KASAN_SHADOW_OFFSET !! 126 config AUDIT_ARCH
101 hex !! 127 bool
102 default 0x6e400000 !! 128 default y
103 129
104 config CPU_BIG_ENDIAN !! 130 config HAVE_SETUP_PER_CPU_AREA
105 def_bool $(success,test "$(shell,echo !! 131 def_bool y if SPARC64
106 132
107 config CPU_LITTLE_ENDIAN !! 133 config NEED_PER_CPU_EMBED_FIRST_CHUNK
108 def_bool !CPU_BIG_ENDIAN !! 134 def_bool y if SPARC64
109 135
110 config CC_HAVE_CALL0_ABI !! 136 config NEED_PER_CPU_PAGE_FIRST_CHUNK
111 def_bool $(success,test "$(shell,echo !! 137 def_bool y if SPARC64
112 138
113 menu "Processor type and features" !! 139 config MMU
>> 140 bool
>> 141 default y
114 142
115 choice !! 143 config HIGHMEM
116 prompt "Xtensa Processor Configuration !! 144 bool
117 default XTENSA_VARIANT_FSF !! 145 default y if SPARC32
118 146
119 config XTENSA_VARIANT_FSF !! 147 config ZONE_DMA
120 bool "fsf - default (not generic) conf !! 148 bool
121 select MMU !! 149 default y if SPARC32
122 150
123 config XTENSA_VARIANT_DC232B !! 151 config NEED_DMA_MAP_STATE
124 bool "dc232b - Diamond 232L Standard C !! 152 def_bool y
125 select MMU <<
126 select HAVE_XTENSA_GPIO32 <<
127 help <<
128 This variant refers to Tensilica's D <<
129 153
130 config XTENSA_VARIANT_DC233C !! 154 config NEED_SG_DMA_LENGTH
131 bool "dc233c - Diamond 233L Standard C !! 155 def_bool y
132 select MMU <<
133 select HAVE_XTENSA_GPIO32 <<
134 help <<
135 This variant refers to Tensilica's D <<
136 156
137 config XTENSA_VARIANT_CUSTOM !! 157 config GENERIC_ISA_DMA
138 bool "Custom Xtensa processor configur !! 158 bool
139 select HAVE_XTENSA_GPIO32 !! 159 default y if SPARC32
140 help <<
141 Select this variant to use a custom <<
142 You will be prompted for a processor <<
143 endchoice <<
144 160
145 config XTENSA_VARIANT_CUSTOM_NAME !! 161 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
146 string "Xtensa Processor Custom Core V !! 162 def_bool y if SPARC64
147 depends on XTENSA_VARIANT_CUSTOM <<
148 help <<
149 Provide the name of a custom Xtensa <<
150 This CORENAME selects arch/xtensa/va <<
151 Don't forget you have to select MMU <<
152 163
153 config XTENSA_VARIANT_NAME !! 164 config PGTABLE_LEVELS
154 string !! 165 default 4 if 64BIT
155 default "dc232b" !! 166 default 3
156 default "dc233c" <<
157 default "fsf" <<
158 default XTENSA_VARIANT_CUSTOM_NAME <<
159 <<
160 config XTENSA_VARIANT_MMU <<
161 bool "Core variant has a Full MMU (TLB <<
162 depends on XTENSA_VARIANT_CUSTOM <<
163 default y <<
164 select MMU <<
165 help <<
166 Build a Conventional Kernel with ful <<
167 ie: it supports a TLB with auto-load <<
168 <<
169 config XTENSA_VARIANT_HAVE_PERF_EVENTS <<
170 bool "Core variant has Performance Mon <<
171 depends on XTENSA_VARIANT_CUSTOM <<
172 default n <<
173 help <<
174 Enable if core variant has Performan <<
175 External Registers Interface. <<
176 167
177 If unsure, say N. !! 168 config ARCH_SUPPORTS_UPROBES
>> 169 def_bool y if SPARC64
178 170
179 config XTENSA_FAKE_NMI !! 171 source "init/Kconfig"
180 bool "Treat PMM IRQ as NMI" <<
181 depends on XTENSA_VARIANT_HAVE_PERF_EV <<
182 default n <<
183 help <<
184 If PMM IRQ is the only IRQ at EXCM l <<
185 treat it as NMI, which improves accu <<
186 <<
187 If there are other interrupts at or <<
188 but not above the EXCM level, PMM IR <<
189 but only if these IRQs are not used. <<
190 saying that this is not safe, and a <<
191 actually fire. <<
192 172
193 If unsure, say N. !! 173 source "kernel/Kconfig.freezer"
194 174
195 config PFAULT !! 175 menu "Processor type and features"
196 bool "Handle protection faults" if EXP <<
197 default y <<
198 help <<
199 Handle protection faults. MMU config <<
200 noMMU configurations may disable it <<
201 generates protection faults or fault <<
202 176
203 If unsure, say Y. !! 177 config SMP
>> 178 bool "Symmetric multi-processing support"
>> 179 ---help---
>> 180 This enables support for systems with more than one CPU. If you have
>> 181 a system with only one CPU, say N. If you have a system with more
>> 182 than one CPU, say Y.
>> 183
>> 184 If you say N here, the kernel will run on uni- and multiprocessor
>> 185 machines, but will use only one CPU of a multiprocessor machine. If
>> 186 you say Y here, the kernel will run on many, but not all,
>> 187 uniprocessor machines. On a uniprocessor machine, the kernel
>> 188 will run faster if you say N here.
>> 189
>> 190 People using multiprocessor machines who say Y here should also say
>> 191 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 192 Management" code will be disabled if you say Y here.
204 193
205 config XTENSA_UNALIGNED_USER !! 194 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
206 bool "Unaligned memory access in user !! 195 available at <http://www.tldp.org/docs.html#howto>.
207 help <<
208 The Xtensa architecture currently do <<
209 memory accesses in hardware but thro <<
210 Per default, unaligned memory access <<
211 196
212 Say Y here to enable unaligned memor !! 197 If you don't know what to do here, say N.
213 198
214 config XTENSA_LOAD_STORE !! 199 config NR_CPUS
215 bool "Load/store exception handler for !! 200 int "Maximum number of CPUs"
216 help !! 201 depends on SMP
217 The Xtensa architecture only allows !! 202 range 2 32 if SPARC32
218 instruction bus with l32r and l32i i !! 203 range 2 4096 if SPARC64
219 instructions raise an exception with !! 204 default 32 if SPARC32
220 This makes it hard to use some confi !! 205 default 4096 if SPARC64
221 literals in FLASH memory attached to <<
222 206
223 Say Y here to enable exception handl !! 207 source kernel/Kconfig.hz
224 byte and 2-byte access to memory att <<
225 208
226 config HAVE_SMP !! 209 config RWSEM_GENERIC_SPINLOCK
227 bool "System Supports SMP (MX)" !! 210 bool
228 depends on XTENSA_VARIANT_CUSTOM !! 211 default y if SPARC32
229 select XTENSA_MX <<
230 help <<
231 This option is used to indicate that <<
232 supports Multiprocessing. Multiproce <<
233 the CPU core definition and currentl <<
234 212
235 Multiprocessor support is implemente !! 213 config RWSEM_XCHGADD_ALGORITHM
236 interrupt controllers. !! 214 bool
>> 215 default y if SPARC64
237 216
238 The MX interrupt distributer adds In !! 217 config GENERIC_HWEIGHT
239 and causes the IRQ numbers to be inc !! 218 bool
240 like the open cores ethernet driver !! 219 default y
241 220
242 You still have to select "Enable SMP !! 221 config GENERIC_CALIBRATE_DELAY
>> 222 bool
>> 223 default y
243 224
244 config SMP !! 225 config ARCH_MAY_HAVE_PC_FDC
245 bool "Enable Symmetric multi-processin !! 226 bool
246 depends on HAVE_SMP !! 227 default y
247 select GENERIC_SMP_IDLE_THREAD !! 228
>> 229 config EMULATED_CMPXCHG
>> 230 bool
>> 231 default y if SPARC32
248 help 232 help
249 Enabled SMP Software; allows more th !! 233 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
250 to be activated during startup. !! 234 is emulated, and therefore it is not completely atomic.
251 235
252 config NR_CPUS !! 236 # Makefile helpers
253 depends on SMP !! 237 config SPARC32_SMP
254 int "Maximum number of CPUs (2-32)" !! 238 bool
255 range 2 32 !! 239 default y
256 default "4" !! 240 depends on SPARC32 && SMP
257 241
258 config HOTPLUG_CPU !! 242 config SPARC64_SMP
259 bool "Enable CPU hotplug support" !! 243 bool
260 depends on SMP !! 244 default y
261 help !! 245 depends on SPARC64 && SMP
262 Say Y here to allow turning CPUs off <<
263 controlled through /sys/devices/syst <<
264 246
265 Say N if you want to disable CPU hot !! 247 config EARLYFB
>> 248 bool "Support for early boot text console"
>> 249 default y
>> 250 depends on SPARC64
>> 251 help
>> 252 Say Y here to enable a faster early framebuffer boot console.
266 253
267 config SECONDARY_RESET_VECTOR !! 254 config SECCOMP
268 bool "Secondary cores use alternative !! 255 bool "Enable seccomp to safely compute untrusted bytecode"
>> 256 depends on SPARC64 && PROC_FS
269 default y 257 default y
270 depends on HAVE_SMP <<
271 help 258 help
272 Secondary cores may be configured to !! 259 This kernel feature is useful for number crunching applications
273 or all cores may use primary reset v !! 260 that may need to compute untrusted bytecode during their
274 Say Y here to supply handler for the !! 261 execution. By using pipes or other transports made available to
>> 262 the process as file descriptors supporting the read/write
>> 263 syscalls, it's possible to isolate those applications in
>> 264 their own address space using seccomp. Once seccomp is
>> 265 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 266 and the task is only allowed to execute a few safe syscalls
>> 267 defined by each seccomp mode.
>> 268
>> 269 If unsure, say Y. Only embedded should say N here.
275 270
276 config FAST_SYSCALL_XTENSA !! 271 config HOTPLUG_CPU
277 bool "Enable fast atomic syscalls" !! 272 bool "Support for hot-pluggable CPUs"
278 default n !! 273 depends on SPARC64 && SMP
279 help 274 help
280 fast_syscall_xtensa is a syscall tha !! 275 Say Y here to experiment with turning CPUs off and on. CPUs
281 on UP kernel when processor has no s !! 276 can be controlled through /sys/devices/system/cpu/cpu#.
>> 277 Say N if you want to disable CPU hotplug.
282 278
283 This syscall is deprecated. It may h !! 279 if SPARC64
284 invalid arguments. It is provided on !! 280 source "drivers/cpufreq/Kconfig"
285 Only enable it if your userspace sof !! 281 endif
>> 282
>> 283 config US3_MC
>> 284 tristate "UltraSPARC-III Memory Controller driver"
>> 285 depends on SPARC64
>> 286 default y
>> 287 help
>> 288 This adds a driver for the UltraSPARC-III memory controller.
>> 289 Loading this driver allows exact mnemonic strings to be
>> 290 printed in the event of a memory error, so that the faulty DIMM
>> 291 on the motherboard can be matched to the error.
286 292
287 If unsure, say N. !! 293 If in doubt, say Y, as this information can be very useful.
288 294
289 config FAST_SYSCALL_SPILL_REGISTERS !! 295 # Global things across all Sun machines.
290 bool "Enable spill registers syscall" !! 296 config GENERIC_LOCKBREAK
291 default n !! 297 bool
292 help !! 298 default y
293 fast_syscall_spill_registers is a sy !! 299 depends on SPARC64 && SMP && PREEMPT
294 register windows of a calling usersp <<
295 <<
296 This syscall is deprecated. It may h <<
297 invalid arguments. It is provided on <<
298 Only enable it if your userspace sof <<
299 300
300 If unsure, say N. !! 301 config NUMA
>> 302 bool "NUMA support"
>> 303 depends on SPARC64 && SMP
>> 304
>> 305 config NODES_SHIFT
>> 306 int "Maximum NUMA Nodes (as a power of 2)"
>> 307 range 4 5 if SPARC64
>> 308 default "5"
>> 309 depends on NEED_MULTIPLE_NODES
>> 310 help
>> 311 Specify the maximum number of NUMA Nodes available on the target
>> 312 system. Increases memory reserved to accommodate various tables.
>> 313
>> 314 # Some NUMA nodes have memory ranges that span
>> 315 # other nodes. Even though a pfn is valid and
>> 316 # between a node's start and end pfns, it may not
>> 317 # reside on that node. See memmap_init_zone()
>> 318 # for details.
>> 319 config NODES_SPAN_OTHER_NODES
>> 320 def_bool y
>> 321 depends on NEED_MULTIPLE_NODES
301 322
302 choice !! 323 config ARCH_SELECT_MEMORY_MODEL
303 prompt "Kernel ABI" !! 324 def_bool y if SPARC64
304 default KERNEL_ABI_DEFAULT <<
305 help <<
306 Select ABI for the kernel code. This <<
307 supported userspace ABI and any comb <<
308 kernel/userspace ABI is possible and <<
309 325
310 In case both kernel and userspace su !! 326 config ARCH_SPARSEMEM_ENABLE
311 all register windows support code wi !! 327 def_bool y if SPARC64
312 build. !! 328 select SPARSEMEM_VMEMMAP_ENABLE
313 329
314 If unsure, choose the default ABI. !! 330 config ARCH_SPARSEMEM_DEFAULT
>> 331 def_bool y if SPARC64
315 332
316 config KERNEL_ABI_DEFAULT !! 333 config FORCE_MAX_ZONEORDER
317 bool "Default ABI" !! 334 int "Maximum zone order"
>> 335 default "13"
318 help 336 help
319 Select this option to compile kernel !! 337 The kernel memory allocator divides physically contiguous memory
320 selected for the toolchain. !! 338 blocks into "zones", where each zone is a power of two number of
321 Normally cores with windowed registe !! 339 pages. This option selects the largest power of two that the kernel
322 cores without it use call0 ABI. !! 340 keeps in the memory allocator. If you need to allocate very large
>> 341 blocks of physically contiguous memory, then you may need to
>> 342 increase this value.
323 343
324 config KERNEL_ABI_CALL0 !! 344 This config option is actually maximum order plus one. For example,
325 bool "Call0 ABI" if CC_HAVE_CALL0_ABI !! 345 a value of 13 means that the largest free memory block is 2^12 pages.
326 help <<
327 Select this option to compile kernel <<
328 toolchain that defaults to windowed <<
329 When this option is not selected the <<
330 be used for the kernel code. <<
331 346
332 endchoice !! 347 source "mm/Kconfig"
333 348
334 config USER_ABI_CALL0 !! 349 if SPARC64
335 bool !! 350 source "kernel/power/Kconfig"
>> 351 endif
336 352
337 choice !! 353 config SCHED_SMT
338 prompt "Userspace ABI" !! 354 bool "SMT (Hyperthreading) scheduler support"
339 default USER_ABI_DEFAULT !! 355 depends on SPARC64 && SMP
>> 356 default y
>> 357 help
>> 358 SMT scheduler support improves the CPU scheduler's decision making
>> 359 when dealing with SPARC cpus at a cost of slightly increased overhead
>> 360 in some places. If unsure say N here.
>> 361
>> 362 config SCHED_MC
>> 363 bool "Multi-core scheduler support"
>> 364 depends on SPARC64 && SMP
>> 365 default y
340 help 366 help
341 Select supported userspace ABI. !! 367 Multi-core scheduler support improves the CPU scheduler's decision
>> 368 making when dealing with multi-core CPU chips at a cost of slightly
>> 369 increased overhead in some places. If unsure say N here.
342 370
343 If unsure, choose the default ABI. !! 371 source "kernel/Kconfig.preempt"
344 372
345 config USER_ABI_DEFAULT !! 373 config CMDLINE_BOOL
346 bool "Default ABI only" !! 374 bool "Default bootloader kernel arguments"
347 help !! 375 depends on SPARC64
348 Assume default userspace ABI. For XE <<
349 call0 ABI binaries may be run on suc <<
350 will not work correctly for them. <<
351 376
352 config USER_ABI_CALL0_ONLY !! 377 config CMDLINE
353 bool "Call0 ABI only" !! 378 string "Initial kernel command string"
354 select USER_ABI_CALL0 !! 379 depends on CMDLINE_BOOL
>> 380 default "console=ttyS0,9600 root=/dev/sda1"
355 help 381 help
356 Select this option to support only c !! 382 Say Y here if you want to be able to pass default arguments to
357 Windowed ABI binaries will crash wit !! 383 the kernel. This will be overridden by the bootloader, if you
358 an illegal instruction exception on !! 384 use one (such as SILO). This is most useful if you want to boot
>> 385 a kernel from TFTP, and want default options to be available
>> 386 with having them passed on the command line.
359 387
360 Choose this option if you're plannin !! 388 NOTE: This option WILL override the PROM bootargs setting!
361 built with call0 ABI. <<
362 389
363 config USER_ABI_CALL0_PROBE !! 390 config SUN_PM
364 bool "Support both windowed and call0 !! 391 bool
365 select USER_ABI_CALL0 !! 392 default y if SPARC32
366 help 393 help
367 Select this option to support both w !! 394 Enable power management and CPU standby features on supported
368 ABIs. When enabled all processes are !! 395 SPARC platforms.
369 and a fast user exception handler fo <<
370 used to turn on PS.WOE bit on the fi <<
371 the userspace. <<
372 <<
373 This option should be enabled for th <<
374 both call0 and windowed ABIs in user <<
375 396
376 Note that Xtensa ISA does not guaran !! 397 config SPARC_LED
377 raise an illegal instruction excepti !! 398 tristate "Sun4m LED driver"
378 PS.WOE is disabled, check whether th !! 399 depends on SPARC32
>> 400 help
>> 401 This driver toggles the front-panel LED on sun4m systems
>> 402 in a user-specifiable manner. Its state can be probed
>> 403 by reading /proc/led and its blinking mode can be changed
>> 404 via writes to /proc/led
379 405
380 endchoice !! 406 config SERIAL_CONSOLE
>> 407 bool
>> 408 depends on SPARC32
>> 409 default y
>> 410 ---help---
>> 411 If you say Y here, it will be possible to use a serial port as the
>> 412 system console (the system console is the device which receives all
>> 413 kernel messages and warnings and which allows logins in single user
>> 414 mode). This could be useful if some terminal or printer is connected
>> 415 to that serial port.
>> 416
>> 417 Even if you say Y here, the currently visible virtual console
>> 418 (/dev/tty0) will still be used as the system console by default, but
>> 419 you can alter that using a kernel command line option such as
>> 420 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 421 your boot loader (silo) about how to pass options to the kernel at
>> 422 boot time.)
>> 423
>> 424 If you don't have a graphics card installed and you say Y here, the
>> 425 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 426 system console.
381 427
382 endmenu !! 428 If unsure, say N.
383 429
384 config XTENSA_CALIBRATE_CCOUNT !! 430 config SPARC_LEON
385 def_bool n !! 431 bool "Sparc Leon processor family"
386 help !! 432 depends on SPARC32
387 On some platforms (XT2000, for examp !! 433 select USB_EHCI_BIG_ENDIAN_MMIO
388 vary. The frequency can be determin !! 434 select USB_EHCI_BIG_ENDIAN_DESC
389 against a well known, fixed frequenc !! 435 ---help---
>> 436 If you say Y here if you are running on a SPARC-LEON processor.
>> 437 The LEON processor is a synthesizable VHDL model of the
>> 438 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 439 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 440 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 441 toolchain at www.gaisler.com.
>> 442
>> 443 if SPARC_LEON
>> 444 menu "U-Boot options"
>> 445
>> 446 config UBOOT_LOAD_ADDR
>> 447 hex "uImage Load Address"
>> 448 default 0x40004000
>> 449 ---help---
>> 450 U-Boot kernel load address, the address in physical address space
>> 451 where u-boot will place the Linux kernel before booting it.
>> 452 This address is normally the base address of main memory + 0x4000.
>> 453
>> 454 config UBOOT_FLASH_ADDR
>> 455 hex "uImage.o Load Address"
>> 456 default 0x00080000
>> 457 ---help---
>> 458 Optional setting only affecting the uImage.o ELF-image used to
>> 459 download the uImage file to the target using a ELF-loader other than
>> 460 U-Boot. It may for example be used to download an uImage to FLASH with
>> 461 the GRMON utility before even starting u-boot.
>> 462
>> 463 config UBOOT_ENTRY_ADDR
>> 464 hex "uImage Entry Address"
>> 465 default 0xf0004000
>> 466 ---help---
>> 467 Do not change this unless you know what you're doing. This is
>> 468 hardcoded by the SPARC32 and LEON port.
390 469
391 config SERIAL_CONSOLE !! 470 This is the virtual address u-boot jumps to when booting the Linux
392 def_bool n !! 471 Kernel.
393 472
394 config PLATFORM_HAVE_XIP !! 473 endmenu
395 def_bool n !! 474 endif
396 475
397 menu "Platform options" !! 476 endmenu
398 477
399 choice !! 478 menu "Bus options (PCI etc.)"
400 prompt "Xtensa System Type" !! 479 config SBUS
401 default XTENSA_PLATFORM_ISS !! 480 bool
>> 481 default y
402 482
403 config XTENSA_PLATFORM_ISS !! 483 config SBUSCHAR
404 bool "ISS" !! 484 bool
405 select XTENSA_CALIBRATE_CCOUNT !! 485 default y
406 select SERIAL_CONSOLE <<
407 help <<
408 ISS is an acronym for Tensilica's In <<
409 486
410 config XTENSA_PLATFORM_XT2000 !! 487 config SUN_LDOMS
411 bool "XT2000" !! 488 bool "Sun Logical Domains support"
>> 489 depends on SPARC64
412 help 490 help
413 XT2000 is the name of Tensilica's fe !! 491 Say Y here is you want to support virtual devices via
414 This hardware is capable of running !! 492 Logical Domains.
415 493
416 config XTENSA_PLATFORM_XTFPGA !! 494 config PCI
417 bool "XTFPGA" !! 495 bool "Support for PCI and PS/2 keyboard/mouse"
418 select ETHOC if ETHERNET <<
419 select PLATFORM_WANT_DEFAULT_MEM if !M <<
420 select SERIAL_CONSOLE <<
421 select XTENSA_CALIBRATE_CCOUNT <<
422 select PLATFORM_HAVE_XIP <<
423 help 496 help
424 XTFPGA is the name of Tensilica boar !! 497 Find out whether your system includes a PCI bus. PCI is the name of
425 This hardware is capable of running !! 498 a bus system, i.e. the way the CPU talks to the other stuff inside
>> 499 your box. If you say Y here, the kernel will include drivers and
>> 500 infrastructure code to support PCI bus devices.
426 501
427 endchoice !! 502 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
>> 503 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
>> 504 All of these platforms are extremely obscure, so say N if unsure.
428 505
429 config PLATFORM_NR_IRQS !! 506 config PCI_DOMAINS
430 int !! 507 def_bool PCI if SPARC64
431 default 3 if XTENSA_PLATFORM_XT2000 <<
432 default 0 <<
433 508
434 config XTENSA_CPU_CLOCK !! 509 config PCI_SYSCALL
435 int "CPU clock rate [MHz]" !! 510 def_bool PCI
436 depends on !XTENSA_CALIBRATE_CCOUNT <<
437 default 16 <<
438 <<
439 config GENERIC_CALIBRATE_DELAY <<
440 bool "Auto calibration of the BogoMIPS <<
441 help <<
442 The BogoMIPS value can easily be der <<
443 511
444 config CMDLINE_BOOL !! 512 config PCIC_PCI
445 bool "Default bootloader kernel argume !! 513 bool
>> 514 depends on PCI && SPARC32 && !SPARC_LEON
>> 515 default y
446 516
447 config CMDLINE !! 517 config LEON_PCI
448 string "Initial kernel command string" !! 518 bool
449 depends on CMDLINE_BOOL !! 519 depends on PCI && SPARC_LEON
450 default "console=ttyS0,38400 root=/dev !! 520 default y
451 help <<
452 On some architectures (EBSA110 and C <<
453 for the boot loader to pass argument <<
454 architectures, you should supply som <<
455 time by entering them here. As a min <<
456 memory size and the root device (e.g <<
457 521
458 config USE_OF !! 522 config SPARC_GRPCI1
459 bool "Flattened Device Tree support" !! 523 bool "GRPCI Host Bridge Support"
460 select OF !! 524 depends on LEON_PCI
461 select OF_EARLY_FLATTREE !! 525 default y
462 help 526 help
463 Include support for flattened device !! 527 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
464 !! 528 PCI host controller is typically found in GRLIB SPARC32/LEON
465 config BUILTIN_DTB_SOURCE !! 529 systems. The driver has one property (all_pci_errors) controlled
466 string "DTB to build into the kernel i !! 530 from the bootloader that makes the GRPCI to generate interrupts
467 depends on OF !! 531 on detected PCI Parity and System errors.
468 !! 532
469 config PARSE_BOOTPARAM !! 533 config SPARC_GRPCI2
470 bool "Parse bootparam block" !! 534 bool "GRPCI2 Host Bridge Support"
>> 535 depends on LEON_PCI
471 default y 536 default y
472 help 537 help
473 Parse parameters passed to the kerne !! 538 Say Y here to include the GRPCI2 Host Bridge Driver.
474 be disabled if the kernel is known t <<
475 539
476 If unsure, say Y. !! 540 source "drivers/pci/Kconfig"
477 541
478 choice !! 542 source "drivers/pcmcia/Kconfig"
479 prompt "Semihosting interface" <<
480 default XTENSA_SIMCALL_ISS <<
481 depends on XTENSA_PLATFORM_ISS <<
482 help <<
483 Choose semihosting interface that wi <<
484 block device and networking. <<
485 <<
486 config XTENSA_SIMCALL_ISS <<
487 bool "simcall" <<
488 help <<
489 Use simcall instruction. simcall is <<
490 it does nothing on hardware. <<
491 543
492 config XTENSA_SIMCALL_GDBIO !! 544 config SUN_OPENPROMFS
493 bool "GDBIO" !! 545 tristate "Openprom tree appears in /proc/openprom"
494 help 546 help
495 Use break instruction. It is availab !! 547 If you say Y, the OpenPROM device tree will be available as a
496 is attached to it via JTAG. !! 548 virtual file system, which you can mount to /proc/openprom by "mount
>> 549 -t openpromfs none /proc/openprom".
497 550
498 endchoice !! 551 To compile the /proc/openprom support as a module, choose M here: the
>> 552 module will be called openpromfs.
499 553
500 config BLK_DEV_SIMDISK !! 554 Only choose N if you know in advance that you will not need to modify
501 tristate "Host file-based simulated bl !! 555 OpenPROM settings on the running system.
502 default n <<
503 depends on XTENSA_PLATFORM_ISS && BLOC <<
504 help <<
505 Create block devices that map to fil <<
506 Device binding to host file may be c <<
507 interface provided the device is not <<
508 556
509 config BLK_DEV_SIMDISK_COUNT !! 557 # Makefile helpers
510 int "Number of host file-based simulat !! 558 config SPARC64_PCI
511 range 1 10 !! 559 bool
512 depends on BLK_DEV_SIMDISK !! 560 default y
513 default 2 !! 561 depends on SPARC64 && PCI
514 help <<
515 This is the default minimal number o <<
516 Kernel/module parameter 'simdisk_cou <<
517 value at runtime. More file names (b <<
518 specified as parameters, simdisk_cou <<
519 562
520 config SIMDISK0_FILENAME !! 563 config SPARC64_PCI_MSI
521 string "Host filename for the first si !! 564 bool
522 depends on BLK_DEV_SIMDISK = y !! 565 default y
523 default "" !! 566 depends on SPARC64_PCI && PCI_MSI
524 help <<
525 Attach a first simdisk to a host fil <<
526 contains a root file system. <<
527 567
528 config SIMDISK1_FILENAME !! 568 endmenu
529 string "Host filename for the second s <<
530 depends on BLK_DEV_SIMDISK = y && BLK_ <<
531 default "" <<
532 help <<
533 Another simulated disk in a host fil <<
534 storage. <<
535 569
536 config XTFPGA_LCD !! 570 menu "Executable file formats"
537 bool "Enable XTFPGA LCD driver" <<
538 depends on XTENSA_PLATFORM_XTFPGA <<
539 default n <<
540 help <<
541 There's a 2x16 LCD on most of XTFPGA <<
542 progress messages there during bootu <<
543 during board bringup. <<
544 571
545 If unsure, say N. !! 572 source "fs/Kconfig.binfmt"
546 573
547 config XTFPGA_LCD_BASE_ADDR !! 574 config COMPAT
548 hex "XTFPGA LCD base address" !! 575 bool
549 depends on XTFPGA_LCD !! 576 depends on SPARC64
550 default "0x0d0c0000" !! 577 default y
551 help !! 578 select COMPAT_BINFMT_ELF if BINFMT_ELF
552 Base address of the LCD controller i !! 579 select HAVE_UID16
553 Different boards from XTFPGA family !! 580 select ARCH_WANT_OLD_COMPAT_IPC
554 addresses. Please consult prototypin !! 581 select COMPAT_OLD_SIGACTION
555 the correct address. Wrong address h <<
556 <<
557 config XTFPGA_LCD_8BIT_ACCESS <<
558 bool "Use 8-bit access to XTFPGA LCD" <<
559 depends on XTFPGA_LCD <<
560 default n <<
561 help <<
562 LCD may be connected with 4- or 8-bi <<
563 only be used with 8-bit interface. P <<
564 guide for your board for the correct <<
565 <<
566 comment "Kernel memory layout" <<
567 <<
568 config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX <<
569 bool "Initialize Xtensa MMU inside the <<
570 depends on !XTENSA_VARIANT_FSF && !XTE <<
571 default y if XTENSA_VARIANT_DC233C || <<
572 help <<
573 Earlier version initialized the MMU <<
574 before jumping to _startup in head.S <<
575 it was possible to place a software <<
576 then enter your normal kernel breakp <<
577 to the kernel mappings (0XC0000000). <<
578 <<
579 This unfortunately won't work for U- <<
580 work for using KEXEC to have a hot k <<
581 KDUMP. <<
582 <<
583 So now the MMU is initialized in hea <<
584 use hardware breakpoints (gdb 'hbrea <<
585 xt-gdb can't place a Software Breakp <<
586 to mapping the MMU and after mapping <<
587 was mapped gdb wouldn't remove the b <<
588 PC wouldn't match. Since Hardware Br <<
589 Linux configurations it seems reason <<
590 and leave this older mechanism for u <<
591 not to follow Tensilica's recommenda <<
592 <<
593 Selecting this will cause U-Boot to <<
594 address at 0x00003000 instead of the <<
595 <<
596 If in doubt, say Y. <<
597 <<
598 config XIP_KERNEL <<
599 bool "Kernel Execute-In-Place from ROM <<
600 depends on PLATFORM_HAVE_XIP <<
601 help <<
602 Execute-In-Place allows the kernel t <<
603 directly addressable by the CPU, suc <<
604 space since the text section of the <<
605 to RAM. Read-write sections, such as <<
606 are still copied to RAM. The XIP ker <<
607 it has to run directly from flash, s <<
608 store it. The flash address used to <<
609 and for storing it, is configuration <<
610 say Y here, you must know the proper <<
611 store the kernel image depending on <<
612 <<
613 Also note that the make target becom <<
614 "make Image" or "make uImage". The f <<
615 ROM memory will be arch/xtensa/boot/ <<
616 582
617 If unsure, say N. !! 583 config SYSVIPC_COMPAT
>> 584 bool
>> 585 depends on COMPAT && SYSVIPC
>> 586 default y
618 587
619 config MEMMAP_CACHEATTR !! 588 endmenu
620 hex "Cache attributes for the memory a <<
621 depends on !MMU <<
622 default 0x22222222 <<
623 help <<
624 These cache attributes are set up fo <<
625 specifies cache attributes for the c <<
626 region: bits 0..3 -- for addresses 0 <<
627 bits 4..7 -- for addresses 0x2000000 <<
628 <<
629 Cache attribute values are specific <<
630 For region protection MMUs: <<
631 1: WT cached, <<
632 2: cache bypass, <<
633 4: WB cached, <<
634 f: illegal. <<
635 For full MMU: <<
636 bit 0: executable, <<
637 bit 1: writable, <<
638 bits 2..3: <<
639 0: cache bypass, <<
640 1: WB cache, <<
641 2: WT cache, <<
642 3: special (c and e are illegal, <<
643 For MPU: <<
644 0: illegal, <<
645 1: WB cache, <<
646 2: WB, no-write-allocate cache, <<
647 3: WT cache, <<
648 4: cache bypass. <<
649 <<
650 config KSEG_PADDR <<
651 hex "Physical address of the KSEG mapp <<
652 depends on INITIALIZE_XTENSA_MMU_INSID <<
653 default 0x00000000 <<
654 help <<
655 This is the physical address where K <<
656 the chosen KSEG layout help for the <<
657 Unpacked kernel image (including vec <<
658 within KSEG. <<
659 Physical memory below this address i <<
660 <<
661 If unsure, leave the default value h <<
662 <<
663 config KERNEL_VIRTUAL_ADDRESS <<
664 hex "Kernel virtual address" <<
665 depends on MMU && XIP_KERNEL <<
666 default 0xd0003000 <<
667 help <<
668 This is the virtual address where th <<
669 XIP kernel may be mapped into KSEG o <<
670 provided here must match kernel load <<
671 KERNEL_LOAD_ADDRESS. <<
672 <<
673 config KERNEL_LOAD_ADDRESS <<
674 hex "Kernel load address" <<
675 default 0x60003000 if !MMU <<
676 default 0x00003000 if MMU && INITIALIZ <<
677 default 0xd0003000 if MMU && !INITIALI <<
678 help <<
679 This is the address where the kernel <<
680 It is virtual address for MMUv2 conf <<
681 for all other configurations. <<
682 <<
683 If unsure, leave the default value h <<
684 <<
685 choice <<
686 prompt "Relocatable vectors location" <<
687 default XTENSA_VECTORS_IN_TEXT <<
688 help <<
689 Choose whether relocatable vectors a <<
690 or placed separately at runtime. Thi <<
691 configurations without VECBASE regis <<
692 placed at their hardware-defined loc <<
693 <<
694 config XTENSA_VECTORS_IN_TEXT <<
695 bool "Merge relocatable vectors into k <<
696 depends on !MTD_XIP <<
697 help <<
698 This option puts relocatable vectors <<
699 with proper alignment. <<
700 This is a safe choice for most confi <<
701 <<
702 config XTENSA_VECTORS_SEPARATE <<
703 bool "Put relocatable vectors at fixed <<
704 help <<
705 This option puts relocatable vectors <<
706 Vectors are merged with the .init da <<
707 are copied into their designated loc <<
708 Use it to put vectors into IRAM or o <<
709 XIP-aware MTD support. <<
710 <<
711 endchoice <<
712 <<
713 config VECTORS_ADDR <<
714 hex "Kernel vectors virtual address" <<
715 default 0x00000000 <<
716 depends on XTENSA_VECTORS_SEPARATE <<
717 help <<
718 This is the virtual address of the ( <<
719 It must be within KSEG if MMU is use <<
720 <<
721 config XIP_DATA_ADDR <<
722 hex "XIP kernel data virtual address" <<
723 depends on XIP_KERNEL <<
724 default 0x00000000 <<
725 help <<
726 This is the virtual address where XI <<
727 It must be within KSEG if MMU is use <<
728 <<
729 config PLATFORM_WANT_DEFAULT_MEM <<
730 def_bool n <<
731 <<
732 config DEFAULT_MEM_START <<
733 hex <<
734 prompt "PAGE_OFFSET/PHYS_OFFSET" if !M <<
735 default 0x60000000 if PLATFORM_WANT_DE <<
736 default 0x00000000 <<
737 help <<
738 This is the base address used for bo <<
739 in noMMU configurations. <<
740 <<
741 If unsure, leave the default value h <<
742 <<
743 choice <<
744 prompt "KSEG layout" <<
745 depends on MMU <<
746 default XTENSA_KSEG_MMU_V2 <<
747 <<
748 config XTENSA_KSEG_MMU_V2 <<
749 bool "MMUv2: 128MB cached + 128MB unca <<
750 help <<
751 MMUv2 compatible kernel memory map: <<
752 at KSEG_PADDR to 0xd0000000 with cac <<
753 without cache. <<
754 KSEG_PADDR must be aligned to 128MB. <<
755 <<
756 config XTENSA_KSEG_256M <<
757 bool "256MB cached + 256MB uncached" <<
758 depends on INITIALIZE_XTENSA_MMU_INSID <<
759 help <<
760 TLB way 6 maps 256MB starting at KSE <<
761 with cache and to 0xc0000000 without <<
762 KSEG_PADDR must be aligned to 256MB. <<
763 <<
764 config XTENSA_KSEG_512M <<
765 bool "512MB cached + 512MB uncached" <<
766 depends on INITIALIZE_XTENSA_MMU_INSID <<
767 help <<
768 TLB way 6 maps 512MB starting at KSE <<
769 with cache and to 0xc0000000 without <<
770 KSEG_PADDR must be aligned to 256MB. <<
771 589
772 endchoice !! 590 source "net/Kconfig"
773 591
774 config HIGHMEM !! 592 source "drivers/Kconfig"
775 bool "High Memory Support" <<
776 depends on MMU <<
777 select KMAP_LOCAL <<
778 help <<
779 Linux can use the full amount of RAM <<
780 default. However, the default MMUv2 <<
781 lowermost 128 MB of memory linearly <<
782 at 0xd0000000 (cached) and 0xd800000 <<
783 When there are more than 128 MB memo <<
784 all of it can be "permanently mapped <<
785 The physical memory that's not perma <<
786 "high memory". <<
787 <<
788 If you are compiling a kernel which <<
789 machine with more than 128 MB total <<
790 N here. <<
791 <<
792 If unsure, say Y. <<
793 <<
794 config ARCH_FORCE_MAX_ORDER <<
795 int "Order of maximal physically conti <<
796 default "10" <<
797 help <<
798 The kernel page allocator limits the <<
799 contiguous allocations. The limit is <<
800 defines the maximal power of two of <<
801 allocated as a single contiguous blo <<
802 overriding the default setting when <<
803 large blocks of physically contiguou <<
804 593
805 Don't change if unsure. !! 594 source "drivers/sbus/char/Kconfig"
806 595
807 endmenu !! 596 source "fs/Kconfig"
808 597
809 menu "Power management options" !! 598 source "arch/sparc/Kconfig.debug"
810 599
811 config ARCH_HIBERNATION_POSSIBLE !! 600 source "security/Kconfig"
812 def_bool y <<
813 601
814 source "kernel/power/Kconfig" !! 602 source "crypto/Kconfig"
815 603
816 endmenu !! 604 source "lib/Kconfig"
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