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 select ARCH_WANT_RELAX_ORDER >> 48 >> 49 config SPARC32 >> 50 def_bool !64BIT >> 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 67 86 68 config GENERIC_HWEIGHT !! 87 config ARCH_DEFCONFIG 69 def_bool y !! 88 string >> 89 default "arch/sparc/configs/sparc32_defconfig" if SPARC32 >> 90 default "arch/sparc/configs/sparc64_defconfig" if SPARC64 70 91 71 config ARCH_HAS_ILOG2_U32 !! 92 config ARCH_PROC_KCORE_TEXT 72 def_bool n !! 93 def_bool y 73 94 74 config ARCH_HAS_ILOG2_U64 !! 95 config ARCH_ATU 75 def_bool n !! 96 bool >> 97 default y if SPARC64 76 98 77 config ARCH_MTD_XIP !! 99 config ARCH_DMA_ADDR_T_64BIT 78 def_bool y !! 100 bool >> 101 default y if ARCH_ATU 79 102 80 config NO_IOPORT_MAP !! 103 config IOMMU_HELPER 81 def_bool n !! 104 bool >> 105 default y if SPARC64 82 106 83 config HZ !! 107 config STACKTRACE_SUPPORT 84 int !! 108 bool 85 default 100 !! 109 default y if SPARC64 86 110 87 config LOCKDEP_SUPPORT 111 config LOCKDEP_SUPPORT 88 def_bool y !! 112 bool >> 113 default y if SPARC64 89 114 90 config STACKTRACE_SUPPORT !! 115 config ARCH_HIBERNATION_POSSIBLE 91 def_bool y !! 116 def_bool y if SPARC64 92 117 93 config MMU !! 118 config AUDIT_ARCH 94 def_bool n !! 119 bool 95 select PFAULT !! 120 default y 96 121 97 config HAVE_XTENSA_GPIO32 !! 122 config HAVE_SETUP_PER_CPU_AREA 98 def_bool n !! 123 def_bool y if SPARC64 99 124 100 config KASAN_SHADOW_OFFSET !! 125 config NEED_PER_CPU_EMBED_FIRST_CHUNK 101 hex !! 126 def_bool y if SPARC64 102 default 0x6e400000 << 103 127 104 config CPU_BIG_ENDIAN !! 128 config NEED_PER_CPU_PAGE_FIRST_CHUNK 105 def_bool $(success,test "$(shell,echo !! 129 def_bool y if SPARC64 106 130 107 config CPU_LITTLE_ENDIAN !! 131 config MMU 108 def_bool !CPU_BIG_ENDIAN !! 132 bool >> 133 default y 109 134 110 config CC_HAVE_CALL0_ABI !! 135 config HIGHMEM 111 def_bool $(success,test "$(shell,echo !! 136 bool >> 137 default y if SPARC32 112 138 113 menu "Processor type and features" !! 139 config ZONE_DMA >> 140 bool >> 141 default y if SPARC32 114 142 115 choice !! 143 config NEED_DMA_MAP_STATE 116 prompt "Xtensa Processor Configuration !! 144 def_bool y 117 default XTENSA_VARIANT_FSF << 118 145 119 config XTENSA_VARIANT_FSF !! 146 config NEED_SG_DMA_LENGTH 120 bool "fsf - default (not generic) conf !! 147 def_bool y 121 select MMU << 122 148 123 config XTENSA_VARIANT_DC232B !! 149 config GENERIC_ISA_DMA 124 bool "dc232b - Diamond 232L Standard C !! 150 bool 125 select MMU !! 151 default y if SPARC32 126 select HAVE_XTENSA_GPIO32 << 127 help << 128 This variant refers to Tensilica's D << 129 152 130 config XTENSA_VARIANT_DC233C !! 153 config ARCH_SUPPORTS_DEBUG_PAGEALLOC 131 bool "dc233c - Diamond 233L Standard C !! 154 def_bool y if SPARC64 132 select MMU << 133 select HAVE_XTENSA_GPIO32 << 134 help << 135 This variant refers to Tensilica's D << 136 155 137 config XTENSA_VARIANT_CUSTOM !! 156 config PGTABLE_LEVELS 138 bool "Custom Xtensa processor configur !! 157 default 4 if 64BIT 139 select HAVE_XTENSA_GPIO32 !! 158 default 3 140 help << 141 Select this variant to use a custom << 142 You will be prompted for a processor << 143 endchoice << 144 159 145 config XTENSA_VARIANT_CUSTOM_NAME !! 160 config ARCH_SUPPORTS_UPROBES 146 string "Xtensa Processor Custom Core V !! 161 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 << 152 162 153 config XTENSA_VARIANT_NAME !! 163 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. << 176 164 177 If unsure, say N. !! 165 source "kernel/Kconfig.freezer" 178 166 179 config XTENSA_FAKE_NMI !! 167 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. << 192 168 193 If unsure, say N. !! 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. >> 175 >> 176 If you say N here, the kernel will run on uni- and multiprocessor >> 177 machines, but will use only one CPU of a multiprocessor machine. If >> 178 you say Y here, the kernel will run on many, but not all, >> 179 uniprocessor machines. On a uniprocessor machine, the kernel >> 180 will run faster if you say N here. >> 181 >> 182 People using multiprocessor machines who say Y here should also say >> 183 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power >> 184 Management" code will be disabled if you say Y here. 194 185 195 config PFAULT !! 186 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 196 bool "Handle protection faults" if EXP !! 187 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 << 202 188 203 If unsure, say Y. !! 189 If you don't know what to do here, say N. 204 190 205 config XTENSA_UNALIGNED_USER !! 191 config NR_CPUS 206 bool "Unaligned memory access in user !! 192 int "Maximum number of CPUs" 207 help !! 193 depends on SMP 208 The Xtensa architecture currently do !! 194 range 2 32 if SPARC32 209 memory accesses in hardware but thro !! 195 range 2 4096 if SPARC64 210 Per default, unaligned memory access !! 196 default 32 if SPARC32 >> 197 default 4096 if SPARC64 211 198 212 Say Y here to enable unaligned memor !! 199 source kernel/Kconfig.hz 213 200 214 config XTENSA_LOAD_STORE !! 201 config RWSEM_GENERIC_SPINLOCK 215 bool "Load/store exception handler for !! 202 bool 216 help !! 203 default y if SPARC32 217 The Xtensa architecture only allows !! 204 218 instruction bus with l32r and l32i i !! 205 config RWSEM_XCHGADD_ALGORITHM 219 instructions raise an exception with !! 206 bool 220 This makes it hard to use some confi !! 207 default y if SPARC64 221 literals in FLASH memory attached to !! 208 >> 209 config GENERIC_HWEIGHT >> 210 bool >> 211 default y >> 212 >> 213 config GENERIC_CALIBRATE_DELAY >> 214 bool >> 215 default y 222 216 223 Say Y here to enable exception handl !! 217 config ARCH_MAY_HAVE_PC_FDC 224 byte and 2-byte access to memory att !! 218 bool >> 219 default y 225 220 226 config HAVE_SMP !! 221 config EMULATED_CMPXCHG 227 bool "System Supports SMP (MX)" !! 222 bool 228 depends on XTENSA_VARIANT_CUSTOM !! 223 default y if SPARC32 229 select XTENSA_MX << 230 help 224 help 231 This option is used to indicate that !! 225 Sparc32 does not have a CAS instruction like sparc64. cmpxchg() 232 supports Multiprocessing. Multiproce !! 226 is emulated, and therefore it is not completely atomic. 233 the CPU core definition and currentl << 234 227 235 Multiprocessor support is implemente !! 228 # Makefile helpers 236 interrupt controllers. !! 229 config SPARC32_SMP >> 230 bool >> 231 default y >> 232 depends on SPARC32 && SMP 237 233 238 The MX interrupt distributer adds In !! 234 config SPARC64_SMP 239 and causes the IRQ numbers to be inc !! 235 bool 240 like the open cores ethernet driver !! 236 default y >> 237 depends on SPARC64 && SMP 241 238 242 You still have to select "Enable SMP !! 239 config EARLYFB >> 240 bool "Support for early boot text console" >> 241 default y >> 242 depends on SPARC64 >> 243 help >> 244 Say Y here to enable a faster early framebuffer boot console. 243 245 244 config SMP !! 246 config SECCOMP 245 bool "Enable Symmetric multi-processin !! 247 bool "Enable seccomp to safely compute untrusted bytecode" 246 depends on HAVE_SMP !! 248 depends on SPARC64 && PROC_FS 247 select GENERIC_SMP_IDLE_THREAD !! 249 default y 248 help 250 help 249 Enabled SMP Software; allows more th !! 251 This kernel feature is useful for number crunching applications 250 to be activated during startup. !! 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. 251 260 252 config NR_CPUS !! 261 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" << 257 262 258 config HOTPLUG_CPU 263 config HOTPLUG_CPU 259 bool "Enable CPU hotplug support" !! 264 bool "Support for hot-pluggable CPUs" 260 depends on SMP !! 265 depends on SPARC64 && SMP 261 help 266 help 262 Say Y here to allow turning CPUs off !! 267 Say Y here to experiment with turning CPUs off and on. CPUs 263 controlled through /sys/devices/syst !! 268 can be controlled through /sys/devices/system/cpu/cpu#. 264 << 265 Say N if you want to disable CPU hot 269 Say N if you want to disable CPU hotplug. 266 270 267 config SECONDARY_RESET_VECTOR !! 271 if SPARC64 268 bool "Secondary cores use alternative !! 272 source "drivers/cpufreq/Kconfig" >> 273 endif >> 274 >> 275 config US3_MC >> 276 tristate "UltraSPARC-III Memory Controller driver" >> 277 depends on SPARC64 269 default y 278 default y 270 depends on HAVE_SMP << 271 help 279 help 272 Secondary cores may be configured to !! 280 This adds a driver for the UltraSPARC-III memory controller. 273 or all cores may use primary reset v !! 281 Loading this driver allows exact mnemonic strings to be 274 Say Y here to supply handler for the !! 282 printed in the event of a memory error, so that the faulty DIMM 275 !! 283 on the motherboard can be matched to the error. 276 config FAST_SYSCALL_XTENSA << 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 << 283 This syscall is deprecated. It may h << 284 invalid arguments. It is provided on << 285 Only enable it if your userspace sof << 286 284 287 If unsure, say N. !! 285 If in doubt, say Y, as this information can be very useful. 288 286 289 config FAST_SYSCALL_SPILL_REGISTERS !! 287 # Global things across all Sun machines. 290 bool "Enable spill registers syscall" !! 288 config GENERIC_LOCKBREAK 291 default n !! 289 bool 292 help !! 290 default y 293 fast_syscall_spill_registers is a sy !! 291 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 << 299 292 300 If unsure, say N. !! 293 config NUMA >> 294 bool "NUMA support" >> 295 depends on SPARC64 && SMP >> 296 >> 297 config NODES_SHIFT >> 298 int "Maximum NUMA Nodes (as a power of 2)" >> 299 range 4 5 if SPARC64 >> 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 301 314 302 choice !! 315 config ARCH_SELECT_MEMORY_MODEL 303 prompt "Kernel ABI" !! 316 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 << 309 317 310 In case both kernel and userspace su !! 318 config ARCH_SPARSEMEM_ENABLE 311 all register windows support code wi !! 319 def_bool y if SPARC64 312 build. !! 320 select SPARSEMEM_VMEMMAP_ENABLE 313 321 314 If unsure, choose the default ABI. !! 322 config ARCH_SPARSEMEM_DEFAULT >> 323 def_bool y if SPARC64 315 324 316 config KERNEL_ABI_DEFAULT !! 325 config FORCE_MAX_ZONEORDER 317 bool "Default ABI" !! 326 int "Maximum zone order" >> 327 default "13" 318 help 328 help 319 Select this option to compile kernel !! 329 The kernel memory allocator divides physically contiguous memory 320 selected for the toolchain. !! 330 blocks into "zones", where each zone is a power of two number of 321 Normally cores with windowed registe !! 331 pages. This option selects the largest power of two that the kernel 322 cores without it use call0 ABI. !! 332 keeps in the memory allocator. If you need to allocate very large >> 333 blocks of physically contiguous memory, then you may need to >> 334 increase this value. 323 335 324 config KERNEL_ABI_CALL0 !! 336 This config option is actually maximum order plus one. For example, 325 bool "Call0 ABI" if CC_HAVE_CALL0_ABI !! 337 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. << 331 338 332 endchoice !! 339 source "mm/Kconfig" 333 340 334 config USER_ABI_CALL0 !! 341 if SPARC64 335 bool !! 342 source "kernel/power/Kconfig" >> 343 endif 336 344 337 choice !! 345 config SCHED_SMT 338 prompt "Userspace ABI" !! 346 bool "SMT (Hyperthreading) scheduler support" 339 default USER_ABI_DEFAULT !! 347 depends on SPARC64 && SMP >> 348 default y >> 349 help >> 350 SMT scheduler support improves the CPU scheduler's decision making >> 351 when dealing with SPARC cpus at a cost of slightly increased overhead >> 352 in some places. If unsure say N here. >> 353 >> 354 config SCHED_MC >> 355 bool "Multi-core scheduler support" >> 356 depends on SPARC64 && SMP >> 357 default y 340 help 358 help 341 Select supported userspace ABI. !! 359 Multi-core scheduler support improves the CPU scheduler's decision >> 360 making when dealing with multi-core CPU chips at a cost of slightly >> 361 increased overhead in some places. If unsure say N here. 342 362 343 If unsure, choose the default ABI. !! 363 source "kernel/Kconfig.preempt" 344 364 345 config USER_ABI_DEFAULT !! 365 config CMDLINE_BOOL 346 bool "Default ABI only" !! 366 bool "Default bootloader kernel arguments" 347 help !! 367 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. << 351 368 352 config USER_ABI_CALL0_ONLY !! 369 config CMDLINE 353 bool "Call0 ABI only" !! 370 string "Initial kernel command string" 354 select USER_ABI_CALL0 !! 371 depends on CMDLINE_BOOL >> 372 default "console=ttyS0,9600 root=/dev/sda1" 355 help 373 help 356 Select this option to support only c !! 374 Say Y here if you want to be able to pass default arguments to 357 Windowed ABI binaries will crash wit !! 375 the kernel. This will be overridden by the bootloader, if you 358 an illegal instruction exception on !! 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. 359 379 360 Choose this option if you're plannin !! 380 NOTE: This option WILL override the PROM bootargs setting! 361 built with call0 ABI. << 362 381 363 config USER_ABI_CALL0_PROBE !! 382 config SUN_PM 364 bool "Support both windowed and call0 !! 383 bool 365 select USER_ABI_CALL0 !! 384 default y if SPARC32 366 help 385 help 367 Select this option to support both w !! 386 Enable power management and CPU standby features on supported 368 ABIs. When enabled all processes are !! 387 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 << 375 388 376 Note that Xtensa ISA does not guaran !! 389 config SPARC_LED 377 raise an illegal instruction excepti !! 390 tristate "Sun4m LED driver" 378 PS.WOE is disabled, check whether th !! 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 379 397 380 endchoice !! 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. 381 419 382 endmenu !! 420 If unsure, say N. 383 421 384 config XTENSA_CALIBRATE_CCOUNT !! 422 config SPARC_LEON 385 def_bool n !! 423 bool "Sparc Leon processor family" 386 help !! 424 depends on SPARC32 387 On some platforms (XT2000, for examp !! 425 select USB_EHCI_BIG_ENDIAN_MMIO 388 vary. The frequency can be determin !! 426 select USB_EHCI_BIG_ENDIAN_DESC 389 against a well known, fixed frequenc !! 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. 390 461 391 config SERIAL_CONSOLE !! 462 This is the virtual address u-boot jumps to when booting the Linux 392 def_bool n !! 463 Kernel. 393 464 394 config PLATFORM_HAVE_XIP !! 465 endmenu 395 def_bool n !! 466 endif 396 467 397 menu "Platform options" !! 468 endmenu 398 469 399 choice !! 470 menu "Bus options (PCI etc.)" 400 prompt "Xtensa System Type" !! 471 config SBUS 401 default XTENSA_PLATFORM_ISS !! 472 bool >> 473 default y 402 474 403 config XTENSA_PLATFORM_ISS !! 475 config SBUSCHAR 404 bool "ISS" !! 476 bool 405 select XTENSA_CALIBRATE_CCOUNT !! 477 default y 406 select SERIAL_CONSOLE << 407 help << 408 ISS is an acronym for Tensilica's In << 409 478 410 config XTENSA_PLATFORM_XT2000 !! 479 config SUN_LDOMS 411 bool "XT2000" !! 480 bool "Sun Logical Domains support" >> 481 depends on SPARC64 412 help 482 help 413 XT2000 is the name of Tensilica's fe !! 483 Say Y here is you want to support virtual devices via 414 This hardware is capable of running !! 484 Logical Domains. 415 485 416 config XTENSA_PLATFORM_XTFPGA !! 486 config PCI 417 bool "XTFPGA" !! 487 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 488 help 424 XTFPGA is the name of Tensilica boar !! 489 Find out whether your system includes a PCI bus. PCI is the name of 425 This hardware is capable of running !! 490 a bus system, i.e. the way the CPU talks to the other stuff inside 426 !! 491 your box. If you say Y here, the kernel will include drivers and 427 endchoice !! 492 infrastructure code to support PCI bus devices. 428 493 429 config PLATFORM_NR_IRQS !! 494 CONFIG_PCI is needed for all JavaStation's (including MrCoffee), 430 int !! 495 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC. 431 default 3 if XTENSA_PLATFORM_XT2000 !! 496 All of these platforms are extremely obscure, so say N if unsure. 432 default 0 << 433 497 434 config XTENSA_CPU_CLOCK !! 498 config PCI_DOMAINS 435 int "CPU clock rate [MHz]" !! 499 def_bool PCI if SPARC64 436 depends on !XTENSA_CALIBRATE_CCOUNT << 437 default 16 << 438 500 439 config GENERIC_CALIBRATE_DELAY !! 501 config PCI_SYSCALL 440 bool "Auto calibration of the BogoMIPS !! 502 def_bool PCI 441 help << 442 The BogoMIPS value can easily be der << 443 503 444 config CMDLINE_BOOL !! 504 config PCIC_PCI 445 bool "Default bootloader kernel argume !! 505 bool >> 506 depends on PCI && SPARC32 && !SPARC_LEON >> 507 default y 446 508 447 config CMDLINE !! 509 config LEON_PCI 448 string "Initial kernel command string" !! 510 bool 449 depends on CMDLINE_BOOL !! 511 depends on PCI && SPARC_LEON 450 default "console=ttyS0,38400 root=/dev !! 512 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 << 457 513 458 config USE_OF !! 514 config SPARC_GRPCI1 459 bool "Flattened Device Tree support" !! 515 bool "GRPCI Host Bridge Support" 460 select OF !! 516 depends on LEON_PCI 461 select OF_EARLY_FLATTREE !! 517 default y 462 help 518 help 463 Include support for flattened device !! 519 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI 464 !! 520 PCI host controller is typically found in GRLIB SPARC32/LEON 465 config BUILTIN_DTB_SOURCE !! 521 systems. The driver has one property (all_pci_errors) controlled 466 string "DTB to build into the kernel i !! 522 from the bootloader that makes the GRPCI to generate interrupts 467 depends on OF !! 523 on detected PCI Parity and System errors. 468 !! 524 469 config PARSE_BOOTPARAM !! 525 config SPARC_GRPCI2 470 bool "Parse bootparam block" !! 526 bool "GRPCI2 Host Bridge Support" >> 527 depends on LEON_PCI 471 default y 528 default y 472 help 529 help 473 Parse parameters passed to the kerne !! 530 Say Y here to include the GRPCI2 Host Bridge Driver. 474 be disabled if the kernel is known t << 475 531 476 If unsure, say Y. !! 532 source "drivers/pci/Kconfig" 477 533 478 choice !! 534 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. << 485 535 486 config XTENSA_SIMCALL_ISS !! 536 config SUN_OPENPROMFS 487 bool "simcall" !! 537 tristate "Openprom tree appears in /proc/openprom" 488 help 538 help 489 Use simcall instruction. simcall is !! 539 If you say Y, the OpenPROM device tree will be available as a 490 it does nothing on hardware. !! 540 virtual file system, which you can mount to /proc/openprom by "mount >> 541 -t openpromfs none /proc/openprom". 491 542 492 config XTENSA_SIMCALL_GDBIO !! 543 To compile the /proc/openprom support as a module, choose M here: the 493 bool "GDBIO" !! 544 module will be called openpromfs. 494 help << 495 Use break instruction. It is availab << 496 is attached to it via JTAG. << 497 545 498 endchoice !! 546 Only choose N if you know in advance that you will not need to modify 499 !! 547 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 << 508 548 509 config BLK_DEV_SIMDISK_COUNT !! 549 # Makefile helpers 510 int "Number of host file-based simulat !! 550 config SPARC64_PCI 511 range 1 10 !! 551 bool 512 depends on BLK_DEV_SIMDISK !! 552 default y 513 default 2 !! 553 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 << 519 554 520 config SIMDISK0_FILENAME !! 555 config SPARC64_PCI_MSI 521 string "Host filename for the first si !! 556 bool 522 depends on BLK_DEV_SIMDISK = y !! 557 default y 523 default "" !! 558 depends on SPARC64_PCI && PCI_MSI 524 help << 525 Attach a first simdisk to a host fil << 526 contains a root file system. << 527 559 528 config SIMDISK1_FILENAME !! 560 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. << 535 561 536 config XTFPGA_LCD !! 562 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. << 544 563 545 If unsure, say N. !! 564 source "fs/Kconfig.binfmt" 546 565 547 config XTFPGA_LCD_BASE_ADDR !! 566 config COMPAT 548 hex "XTFPGA LCD base address" !! 567 bool 549 depends on XTFPGA_LCD !! 568 depends on SPARC64 550 default "0x0d0c0000" !! 569 default y 551 help !! 570 select COMPAT_BINFMT_ELF 552 Base address of the LCD controller i !! 571 select HAVE_UID16 553 Different boards from XTFPGA family !! 572 select ARCH_WANT_OLD_COMPAT_IPC 554 addresses. Please consult prototypin !! 573 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/ << 616 574 617 If unsure, say N. !! 575 config SYSVIPC_COMPAT >> 576 bool >> 577 depends on COMPAT && SYSVIPC >> 578 default y 618 579 619 config MEMMAP_CACHEATTR !! 580 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. << 771 581 772 endchoice !! 582 source "net/Kconfig" 773 583 774 config HIGHMEM !! 584 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 << 804 585 805 Don't change if unsure. !! 586 source "drivers/sbus/char/Kconfig" 806 587 807 endmenu !! 588 source "fs/Kconfig" 808 589 809 menu "Power management options" !! 590 source "arch/sparc/Kconfig.debug" 810 591 811 config ARCH_HIBERNATION_POSSIBLE !! 592 source "security/Kconfig" 812 def_bool y << 813 593 814 source "kernel/power/Kconfig" !! 594 source "crypto/Kconfig" 815 595 816 endmenu !! 596 source "lib/Kconfig"
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