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 GENERIC_ATOMIC64 >> 51 select CLZ_TAB >> 52 select HAVE_UID16 >> 53 select OLD_SIGACTION >> 54 >> 55 config SPARC64 >> 56 def_bool 64BIT 45 select HAVE_FUNCTION_TRACER 57 select HAVE_FUNCTION_TRACER 46 select HAVE_GCC_PLUGINS if GCC_VERSION !! 58 select HAVE_FUNCTION_GRAPH_TRACER 47 select HAVE_HW_BREAKPOINT if PERF_EVEN !! 59 select HAVE_KRETPROBES 48 select HAVE_IRQ_TIME_ACCOUNTING !! 60 select HAVE_KPROBES 49 select HAVE_PAGE_SIZE_4KB !! 61 select HAVE_RCU_TABLE_FREE if SMP 50 select HAVE_PCI !! 62 select HAVE_MEMBLOCK 51 select HAVE_PERF_EVENTS !! 63 select HAVE_MEMBLOCK_NODE_MAP 52 select HAVE_STACKPROTECTOR !! 64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE >> 65 select HAVE_DYNAMIC_FTRACE >> 66 select HAVE_FTRACE_MCOUNT_RECORD 53 select HAVE_SYSCALL_TRACEPOINTS 67 select HAVE_SYSCALL_TRACEPOINTS 54 select HAVE_VIRT_CPU_ACCOUNTING_GEN !! 68 select HAVE_CONTEXT_TRACKING 55 select IRQ_DOMAIN !! 69 select HAVE_DEBUG_KMEMLEAK 56 select LOCK_MM_AND_FIND_VMA !! 70 select SPARSE_IRQ 57 select MODULES_USE_ELF_RELA !! 71 select RTC_DRV_CMOS >> 72 select RTC_DRV_BQ4802 >> 73 select RTC_DRV_SUN4V >> 74 select RTC_DRV_STARFIRE >> 75 select HAVE_PERF_EVENTS 58 select PERF_USE_VMALLOC 76 select PERF_USE_VMALLOC 59 select TRACE_IRQFLAGS_SUPPORT !! 77 select IRQ_PREFLOW_FASTEOI 60 help !! 78 select ARCH_HAVE_NMI_SAFE_CMPXCHG 61 Xtensa processors are 32-bit RISC ma !! 79 select HAVE_C_RECORDMCOUNT 62 primarily for embedded systems. The !! 80 select NO_BOOTMEM 63 configurable and extensible. The Li !! 81 select HAVE_ARCH_AUDITSYSCALL 64 architecture supports all processor !! 82 select ARCH_SUPPORTS_ATOMIC_RMW 65 with reasonable minimum requirements !! 83 select HAVE_NMI 66 a home page at <http://www.linux-xte !! 84 select HAVE_REGS_AND_STACK_ACCESS_API >> 85 select ARCH_USE_QUEUED_RWLOCKS >> 86 select ARCH_USE_QUEUED_SPINLOCKS >> 87 select GENERIC_TIME_VSYSCALL >> 88 select ARCH_CLOCKSOURCE_DATA 67 89 68 config GENERIC_HWEIGHT !! 90 config ARCH_DEFCONFIG >> 91 string >> 92 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 >> 93 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 >> 94 >> 95 config ARCH_PROC_KCORE_TEXT 69 def_bool y 96 def_bool y 70 97 71 config ARCH_HAS_ILOG2_U32 !! 98 config CPU_BIG_ENDIAN 72 def_bool n !! 99 def_bool y 73 100 74 config ARCH_HAS_ILOG2_U64 !! 101 config ARCH_ATU 75 def_bool n !! 102 bool >> 103 default y if SPARC64 76 104 77 config ARCH_MTD_XIP !! 105 config ARCH_DMA_ADDR_T_64BIT 78 def_bool y !! 106 bool >> 107 default y if ARCH_ATU 79 108 80 config NO_IOPORT_MAP !! 109 config IOMMU_HELPER 81 def_bool n !! 110 bool >> 111 default y if SPARC64 82 112 83 config HZ !! 113 config STACKTRACE_SUPPORT 84 int !! 114 bool 85 default 100 !! 115 default y if SPARC64 86 116 87 config LOCKDEP_SUPPORT 117 config LOCKDEP_SUPPORT 88 def_bool y !! 118 bool >> 119 default y if SPARC64 89 120 90 config STACKTRACE_SUPPORT !! 121 config ARCH_HIBERNATION_POSSIBLE 91 def_bool y !! 122 def_bool y if SPARC64 92 123 93 config MMU !! 124 config AUDIT_ARCH 94 def_bool n !! 125 bool 95 select PFAULT !! 126 default y 96 127 97 config HAVE_XTENSA_GPIO32 !! 128 config HAVE_SETUP_PER_CPU_AREA 98 def_bool n !! 129 def_bool y if SPARC64 99 130 100 config KASAN_SHADOW_OFFSET !! 131 config NEED_PER_CPU_EMBED_FIRST_CHUNK 101 hex !! 132 def_bool y if SPARC64 102 default 0x6e400000 << 103 133 104 config CPU_BIG_ENDIAN !! 134 config NEED_PER_CPU_PAGE_FIRST_CHUNK 105 def_bool $(success,test "$(shell,echo !! 135 def_bool y if SPARC64 106 136 107 config CPU_LITTLE_ENDIAN !! 137 config MMU 108 def_bool !CPU_BIG_ENDIAN !! 138 bool >> 139 default y 109 140 110 config CC_HAVE_CALL0_ABI !! 141 config HIGHMEM 111 def_bool $(success,test "$(shell,echo !! 142 bool >> 143 default y if SPARC32 112 144 113 menu "Processor type and features" !! 145 config ZONE_DMA >> 146 bool >> 147 default y if SPARC32 114 148 115 choice !! 149 config NEED_DMA_MAP_STATE 116 prompt "Xtensa Processor Configuration !! 150 def_bool y 117 default XTENSA_VARIANT_FSF << 118 151 119 config XTENSA_VARIANT_FSF !! 152 config NEED_SG_DMA_LENGTH 120 bool "fsf - default (not generic) conf !! 153 def_bool y 121 select MMU << 122 154 123 config XTENSA_VARIANT_DC232B !! 155 config GENERIC_ISA_DMA 124 bool "dc232b - Diamond 232L Standard C !! 156 bool 125 select MMU !! 157 default y if SPARC32 126 select HAVE_XTENSA_GPIO32 << 127 help << 128 This variant refers to Tensilica's D << 129 158 130 config XTENSA_VARIANT_DC233C !! 159 config ARCH_SUPPORTS_DEBUG_PAGEALLOC 131 bool "dc233c - Diamond 233L Standard C !! 160 def_bool y if SPARC64 132 select MMU << 133 select HAVE_XTENSA_GPIO32 << 134 help << 135 This variant refers to Tensilica's D << 136 161 137 config XTENSA_VARIANT_CUSTOM !! 162 config PGTABLE_LEVELS 138 bool "Custom Xtensa processor configur !! 163 default 4 if 64BIT 139 select HAVE_XTENSA_GPIO32 !! 164 default 3 140 help << 141 Select this variant to use a custom << 142 You will be prompted for a processor << 143 endchoice << 144 165 145 config XTENSA_VARIANT_CUSTOM_NAME !! 166 config ARCH_SUPPORTS_UPROBES 146 string "Xtensa Processor Custom Core V !! 167 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 << 152 168 153 config XTENSA_VARIANT_NAME !! 169 source "init/Kconfig" 154 string << 155 default "dc232b" << 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. << 176 170 177 If unsure, say N. !! 171 source "kernel/Kconfig.freezer" 178 172 179 config XTENSA_FAKE_NMI !! 173 menu "Processor type and features" 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. << 192 174 193 If unsure, say N. !! 175 config SMP >> 176 bool "Symmetric multi-processing support" >> 177 ---help--- >> 178 This enables support for systems with more than one CPU. If you have >> 179 a system with only one CPU, say N. If you have a system with more >> 180 than one CPU, say Y. >> 181 >> 182 If you say N here, the kernel will run on uni- and multiprocessor >> 183 machines, but will use only one CPU of a multiprocessor machine. If >> 184 you say Y here, the kernel will run on many, but not all, >> 185 uniprocessor machines. On a uniprocessor machine, the kernel >> 186 will run faster if you say N here. >> 187 >> 188 People using multiprocessor machines who say Y here should also say >> 189 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power >> 190 Management" code will be disabled if you say Y here. 194 191 195 config PFAULT !! 192 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 196 bool "Handle protection faults" if EXP !! 193 available at <http://www.tldp.org/docs.html#howto>. 197 default y << 198 help << 199 Handle protection faults. MMU config << 200 noMMU configurations may disable it << 201 generates protection faults or fault << 202 194 203 If unsure, say Y. !! 195 If you don't know what to do here, say N. 204 196 205 config XTENSA_UNALIGNED_USER !! 197 config NR_CPUS 206 bool "Unaligned memory access in user !! 198 int "Maximum number of CPUs" 207 help !! 199 depends on SMP 208 The Xtensa architecture currently do !! 200 range 2 32 if SPARC32 209 memory accesses in hardware but thro !! 201 range 2 4096 if SPARC64 210 Per default, unaligned memory access !! 202 default 32 if SPARC32 >> 203 default 4096 if SPARC64 211 204 212 Say Y here to enable unaligned memor !! 205 source kernel/Kconfig.hz 213 206 214 config XTENSA_LOAD_STORE !! 207 config RWSEM_GENERIC_SPINLOCK 215 bool "Load/store exception handler for !! 208 bool 216 help !! 209 default y if SPARC32 217 The Xtensa architecture only allows << 218 instruction bus with l32r and l32i i << 219 instructions raise an exception with << 220 This makes it hard to use some confi << 221 literals in FLASH memory attached to << 222 210 223 Say Y here to enable exception handl !! 211 config RWSEM_XCHGADD_ALGORITHM 224 byte and 2-byte access to memory att !! 212 bool >> 213 default y if SPARC64 225 214 226 config HAVE_SMP !! 215 config GENERIC_HWEIGHT 227 bool "System Supports SMP (MX)" !! 216 bool 228 depends on XTENSA_VARIANT_CUSTOM !! 217 default y 229 select XTENSA_MX !! 218 >> 219 config GENERIC_CALIBRATE_DELAY >> 220 bool >> 221 default y >> 222 >> 223 config ARCH_MAY_HAVE_PC_FDC >> 224 bool >> 225 default y >> 226 >> 227 config EMULATED_CMPXCHG >> 228 bool >> 229 default y if SPARC32 230 help 230 help 231 This option is used to indicate that !! 231 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 232 supports Multiprocessing. Multiproce !! 232 is emulated, and therefore it is not completely atomic. 233 the CPU core definition and currentl << 234 233 235 Multiprocessor support is implemente !! 234 # Makefile helpers 236 interrupt controllers. !! 235 config SPARC32_SMP >> 236 bool >> 237 default y >> 238 depends on SPARC32 && SMP 237 239 238 The MX interrupt distributer adds In !! 240 config SPARC64_SMP 239 and causes the IRQ numbers to be inc !! 241 bool 240 like the open cores ethernet driver !! 242 default y >> 243 depends on SPARC64 && SMP 241 244 242 You still have to select "Enable SMP !! 245 config EARLYFB >> 246 bool "Support for early boot text console" >> 247 default y >> 248 depends on SPARC64 >> 249 help >> 250 Say Y here to enable a faster early framebuffer boot console. 243 251 244 config SMP !! 252 config SECCOMP 245 bool "Enable Symmetric multi-processin !! 253 bool "Enable seccomp to safely compute untrusted bytecode" 246 depends on HAVE_SMP !! 254 depends on SPARC64 && PROC_FS 247 select GENERIC_SMP_IDLE_THREAD !! 255 default y 248 help 256 help 249 Enabled SMP Software; allows more th !! 257 This kernel feature is useful for number crunching applications 250 to be activated during startup. !! 258 that may need to compute untrusted bytecode during their >> 259 execution. By using pipes or other transports made available to >> 260 the process as file descriptors supporting the read/write >> 261 syscalls, it's possible to isolate those applications in >> 262 their own address space using seccomp. Once seccomp is >> 263 enabled via /proc/<pid>/seccomp, it cannot be disabled >> 264 and the task is only allowed to execute a few safe syscalls >> 265 defined by each seccomp mode. 251 266 252 config NR_CPUS !! 267 If unsure, say Y. Only embedded should say N here. 253 depends on SMP << 254 int "Maximum number of CPUs (2-32)" << 255 range 2 32 << 256 default "4" << 257 268 258 config HOTPLUG_CPU 269 config HOTPLUG_CPU 259 bool "Enable CPU hotplug support" !! 270 bool "Support for hot-pluggable CPUs" 260 depends on SMP !! 271 depends on SPARC64 && SMP 261 help 272 help 262 Say Y here to allow turning CPUs off !! 273 Say Y here to experiment with turning CPUs off and on. CPUs 263 controlled through /sys/devices/syst !! 274 can be controlled through /sys/devices/system/cpu/cpu#. 264 << 265 Say N if you want to disable CPU hot 275 Say N if you want to disable CPU hotplug. 266 276 267 config SECONDARY_RESET_VECTOR !! 277 if SPARC64 268 bool "Secondary cores use alternative !! 278 source "drivers/cpufreq/Kconfig" >> 279 endif >> 280 >> 281 config US3_MC >> 282 tristate "UltraSPARC-III Memory Controller driver" >> 283 depends on SPARC64 269 default y 284 default y 270 depends on HAVE_SMP << 271 help 285 help 272 Secondary cores may be configured to !! 286 This adds a driver for the UltraSPARC-III memory controller. 273 or all cores may use primary reset v !! 287 Loading this driver allows exact mnemonic strings to be 274 Say Y here to supply handler for the !! 288 printed in the event of a memory error, so that the faulty DIMM >> 289 on the motherboard can be matched to the error. 275 290 276 config FAST_SYSCALL_XTENSA !! 291 If in doubt, say Y, as this information can be very useful. 277 bool "Enable fast atomic syscalls" << 278 default n << 279 help << 280 fast_syscall_xtensa is a syscall tha << 281 on UP kernel when processor has no s << 282 292 283 This syscall is deprecated. It may h !! 293 # Global things across all Sun machines. 284 invalid arguments. It is provided on !! 294 config GENERIC_LOCKBREAK 285 Only enable it if your userspace sof !! 295 bool 286 !! 296 default y 287 If unsure, say N. !! 297 depends on SPARC64 && SMP && PREEMPT 288 << 289 config FAST_SYSCALL_SPILL_REGISTERS << 290 bool "Enable spill registers syscall" << 291 default n << 292 help << 293 fast_syscall_spill_registers is a sy << 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 << 299 298 300 If unsure, say N. !! 299 config NUMA >> 300 bool "NUMA support" >> 301 depends on SPARC64 && SMP >> 302 >> 303 config NODES_SHIFT >> 304 int "Maximum NUMA Nodes (as a power of 2)" >> 305 range 4 5 if SPARC64 >> 306 default "5" >> 307 depends on NEED_MULTIPLE_NODES >> 308 help >> 309 Specify the maximum number of NUMA Nodes available on the target >> 310 system. Increases memory reserved to accommodate various tables. >> 311 >> 312 # Some NUMA nodes have memory ranges that span >> 313 # other nodes. Even though a pfn is valid and >> 314 # between a node's start and end pfns, it may not >> 315 # reside on that node. See memmap_init_zone() >> 316 # for details. >> 317 config NODES_SPAN_OTHER_NODES >> 318 def_bool y >> 319 depends on NEED_MULTIPLE_NODES 301 320 302 choice !! 321 config ARCH_SELECT_MEMORY_MODEL 303 prompt "Kernel ABI" !! 322 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 << 309 323 310 In case both kernel and userspace su !! 324 config ARCH_SPARSEMEM_ENABLE 311 all register windows support code wi !! 325 def_bool y if SPARC64 312 build. !! 326 select SPARSEMEM_VMEMMAP_ENABLE 313 327 314 If unsure, choose the default ABI. !! 328 config ARCH_SPARSEMEM_DEFAULT >> 329 def_bool y if SPARC64 315 330 316 config KERNEL_ABI_DEFAULT !! 331 config FORCE_MAX_ZONEORDER 317 bool "Default ABI" !! 332 int "Maximum zone order" >> 333 default "13" 318 help 334 help 319 Select this option to compile kernel !! 335 The kernel memory allocator divides physically contiguous memory 320 selected for the toolchain. !! 336 blocks into "zones", where each zone is a power of two number of 321 Normally cores with windowed registe !! 337 pages. This option selects the largest power of two that the kernel 322 cores without it use call0 ABI. !! 338 keeps in the memory allocator. If you need to allocate very large >> 339 blocks of physically contiguous memory, then you may need to >> 340 increase this value. 323 341 324 config KERNEL_ABI_CALL0 !! 342 This config option is actually maximum order plus one. For example, 325 bool "Call0 ABI" if CC_HAVE_CALL0_ABI !! 343 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. << 331 344 332 endchoice !! 345 source "mm/Kconfig" 333 346 334 config USER_ABI_CALL0 !! 347 if SPARC64 335 bool !! 348 source "kernel/power/Kconfig" >> 349 endif 336 350 337 choice !! 351 config SCHED_SMT 338 prompt "Userspace ABI" !! 352 bool "SMT (Hyperthreading) scheduler support" 339 default USER_ABI_DEFAULT !! 353 depends on SPARC64 && SMP >> 354 default y >> 355 help >> 356 SMT scheduler support improves the CPU scheduler's decision making >> 357 when dealing with SPARC cpus at a cost of slightly increased overhead >> 358 in some places. If unsure say N here. >> 359 >> 360 config SCHED_MC >> 361 bool "Multi-core scheduler support" >> 362 depends on SPARC64 && SMP >> 363 default y 340 help 364 help 341 Select supported userspace ABI. !! 365 Multi-core scheduler support improves the CPU scheduler's decision >> 366 making when dealing with multi-core CPU chips at a cost of slightly >> 367 increased overhead in some places. If unsure say N here. 342 368 343 If unsure, choose the default ABI. !! 369 source "kernel/Kconfig.preempt" 344 370 345 config USER_ABI_DEFAULT !! 371 config CMDLINE_BOOL 346 bool "Default ABI only" !! 372 bool "Default bootloader kernel arguments" 347 help !! 373 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. << 351 374 352 config USER_ABI_CALL0_ONLY !! 375 config CMDLINE 353 bool "Call0 ABI only" !! 376 string "Initial kernel command string" 354 select USER_ABI_CALL0 !! 377 depends on CMDLINE_BOOL >> 378 default "console=ttyS0,9600 root=/dev/sda1" 355 help 379 help 356 Select this option to support only c !! 380 Say Y here if you want to be able to pass default arguments to 357 Windowed ABI binaries will crash wit !! 381 the kernel. This will be overridden by the bootloader, if you 358 an illegal instruction exception on !! 382 use one (such as SILO). This is most useful if you want to boot >> 383 a kernel from TFTP, and want default options to be available >> 384 with having them passed on the command line. 359 385 360 Choose this option if you're plannin !! 386 NOTE: This option WILL override the PROM bootargs setting! 361 built with call0 ABI. << 362 387 363 config USER_ABI_CALL0_PROBE !! 388 config SUN_PM 364 bool "Support both windowed and call0 !! 389 bool 365 select USER_ABI_CALL0 !! 390 default y if SPARC32 366 help 391 help 367 Select this option to support both w !! 392 Enable power management and CPU standby features on supported 368 ABIs. When enabled all processes are !! 393 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 << 375 394 376 Note that Xtensa ISA does not guaran !! 395 config SPARC_LED 377 raise an illegal instruction excepti !! 396 tristate "Sun4m LED driver" 378 PS.WOE is disabled, check whether th !! 397 depends on SPARC32 >> 398 help >> 399 This driver toggles the front-panel LED on sun4m systems >> 400 in a user-specifiable manner. Its state can be probed >> 401 by reading /proc/led and its blinking mode can be changed >> 402 via writes to /proc/led 379 403 380 endchoice !! 404 config SERIAL_CONSOLE >> 405 bool >> 406 depends on SPARC32 >> 407 default y >> 408 ---help--- >> 409 If you say Y here, it will be possible to use a serial port as the >> 410 system console (the system console is the device which receives all >> 411 kernel messages and warnings and which allows logins in single user >> 412 mode). This could be useful if some terminal or printer is connected >> 413 to that serial port. >> 414 >> 415 Even if you say Y here, the currently visible virtual console >> 416 (/dev/tty0) will still be used as the system console by default, but >> 417 you can alter that using a kernel command line option such as >> 418 "console=ttyS1". (Try "man bootparam" or see the documentation of >> 419 your boot loader (silo) about how to pass options to the kernel at >> 420 boot time.) >> 421 >> 422 If you don't have a graphics card installed and you say Y here, the >> 423 kernel will automatically use the first serial line, /dev/ttyS0, as >> 424 system console. 381 425 382 endmenu !! 426 If unsure, say N. 383 427 384 config XTENSA_CALIBRATE_CCOUNT !! 428 config SPARC_LEON 385 def_bool n !! 429 bool "Sparc Leon processor family" 386 help !! 430 depends on SPARC32 387 On some platforms (XT2000, for examp !! 431 select USB_EHCI_BIG_ENDIAN_MMIO 388 vary. The frequency can be determin !! 432 select USB_EHCI_BIG_ENDIAN_DESC 389 against a well known, fixed frequenc !! 433 select USB_UHCI_BIG_ENDIAN_MMIO >> 434 select USB_UHCI_BIG_ENDIAN_DESC >> 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 426 !! 499 your box. If you say Y here, the kernel will include drivers and 427 endchoice !! 500 infrastructure code to support PCI bus devices. 428 501 429 config PLATFORM_NR_IRQS !! 502 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 430 int !! 503 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 431 default 3 if XTENSA_PLATFORM_XT2000 !! 504 All of these platforms are extremely obscure, so say N if unsure. 432 default 0 << 433 505 434 config XTENSA_CPU_CLOCK !! 506 config PCI_DOMAINS 435 int "CPU clock rate [MHz]" !! 507 def_bool PCI if SPARC64 436 depends on !XTENSA_CALIBRATE_CCOUNT << 437 default 16 << 438 508 439 config GENERIC_CALIBRATE_DELAY !! 509 config PCI_SYSCALL 440 bool "Auto calibration of the BogoMIPS !! 510 def_bool PCI 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. << 485 543 486 config XTENSA_SIMCALL_ISS !! 544 config SUN_OPENPROMFS 487 bool "simcall" !! 545 tristate "Openprom tree appears in /proc/openprom" 488 help 546 help 489 Use simcall instruction. simcall is !! 547 If you say Y, the OpenPROM device tree will be available as a 490 it does nothing on hardware. !! 548 virtual file system, which you can mount to /proc/openprom by "mount >> 549 -t openpromfs none /proc/openprom". 491 550 492 config XTENSA_SIMCALL_GDBIO !! 551 To compile the /proc/openprom support as a module, choose M here: the 493 bool "GDBIO" !! 552 module will be called openpromfs. 494 help << 495 Use break instruction. It is availab << 496 is attached to it via JTAG. << 497 553 498 endchoice !! 554 Only choose N if you know in advance that you will not need to modify 499 !! 555 OpenPROM settings on the running system. 500 config BLK_DEV_SIMDISK << 501 tristate "Host file-based simulated bl << 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 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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