1# SPDX-License-Identifier: GPL-2.0 2config PARISC 3 def_bool y 4 select ARCH_32BIT_OFF_T if !64BIT 5 select ARCH_MIGHT_HAVE_PC_PARPORT 6 select HAVE_IDE 7 select HAVE_OPROFILE 8 select HAVE_FUNCTION_TRACER 9 select HAVE_FUNCTION_GRAPH_TRACER 10 select HAVE_SYSCALL_TRACEPOINTS 11 select ARCH_WANT_FRAME_POINTERS 12 select ARCH_HAS_ELF_RANDOMIZE 13 select ARCH_HAS_STRICT_KERNEL_RWX 14 select ARCH_HAS_UBSAN_SANITIZE_ALL 15 select ARCH_NO_SG_CHAIN 16 select ARCH_SUPPORTS_MEMORY_FAILURE 17 select DMA_OPS 18 select RTC_CLASS 19 select RTC_DRV_GENERIC 20 select INIT_ALL_POSSIBLE 21 select BUG 22 select BUILDTIME_TABLE_SORT 23 select HAVE_PCI 24 select HAVE_PERF_EVENTS 25 select HAVE_KERNEL_BZIP2 26 select HAVE_KERNEL_GZIP 27 select HAVE_KERNEL_LZ4 28 select HAVE_KERNEL_LZMA 29 select HAVE_KERNEL_LZO 30 select HAVE_KERNEL_XZ 31 select GENERIC_ATOMIC64 if !64BIT 32 select GENERIC_IRQ_PROBE 33 select GENERIC_PCI_IOMAP 34 select ARCH_HAVE_NMI_SAFE_CMPXCHG 35 select GENERIC_SMP_IDLE_THREAD 36 select GENERIC_CPU_DEVICES 37 select GENERIC_STRNCPY_FROM_USER 38 select SYSCTL_ARCH_UNALIGN_ALLOW 39 select SYSCTL_EXCEPTION_TRACE 40 select HAVE_MOD_ARCH_SPECIFIC 41 select VIRT_TO_BUS 42 select MODULES_USE_ELF_RELA 43 select CLONE_BACKWARDS 44 select TTY # Needed for pdc_cons.c 45 select HAVE_DEBUG_STACKOVERFLOW 46 select HAVE_ARCH_AUDITSYSCALL 47 select HAVE_ARCH_HASH 48 select HAVE_ARCH_JUMP_LABEL 49 select HAVE_ARCH_JUMP_LABEL_RELATIVE 50 select HAVE_ARCH_SECCOMP_FILTER 51 select HAVE_ARCH_TRACEHOOK 52 select HAVE_REGS_AND_STACK_ACCESS_API 53 select GENERIC_SCHED_CLOCK 54 select HAVE_UNSTABLE_SCHED_CLOCK if SMP 55 select GENERIC_CLOCKEVENTS 56 select CPU_NO_EFFICIENT_FFS 57 select NEED_DMA_MAP_STATE 58 select NEED_SG_DMA_LENGTH 59 select HAVE_ARCH_KGDB 60 select HAVE_KPROBES 61 select HAVE_KRETPROBES 62 select HAVE_DYNAMIC_FTRACE if $(cc-option,-fpatchable-function-entry=1,1) 63 select HAVE_FTRACE_MCOUNT_RECORD if HAVE_DYNAMIC_FTRACE 64 select HAVE_KPROBES_ON_FTRACE 65 select HAVE_DYNAMIC_FTRACE_WITH_REGS 66 select SET_FS 67 68 help 69 The PA-RISC microprocessor is designed by Hewlett-Packard and used 70 in many of their workstations & servers (HP9000 700 and 800 series, 71 and later HP3000 series). The PA-RISC Linux project home page is 72 at <https://parisc.wiki.kernel.org>. 73 74config CPU_BIG_ENDIAN 75 def_bool y 76 77config MMU 78 def_bool y 79 80config STACK_GROWSUP 81 def_bool y 82 83config ARCH_DEFCONFIG 84 string 85 default "arch/parisc/configs/generic-32bit_defconfig" if !64BIT 86 default "arch/parisc/configs/generic-64bit_defconfig" if 64BIT 87 88config GENERIC_LOCKBREAK 89 bool 90 default y 91 depends on SMP && PREEMPTION 92 93config ARCH_HAS_ILOG2_U32 94 bool 95 default n 96 97config ARCH_HAS_ILOG2_U64 98 bool 99 default n 100 101config GENERIC_BUG 102 bool 103 default y 104 depends on BUG 105 106config GENERIC_HWEIGHT 107 bool 108 default y 109 110config GENERIC_CALIBRATE_DELAY 111 bool 112 default y 113 114config TIME_LOW_RES 115 bool 116 depends on SMP 117 default y 118 119# unless you want to implement ACPI on PA-RISC ... ;-) 120config PM 121 bool 122 123config STACKTRACE_SUPPORT 124 def_bool y 125 126config ISA_DMA_API 127 bool 128 129config ARCH_MAY_HAVE_PC_FDC 130 bool 131 depends on BROKEN 132 default y 133 134config PGTABLE_LEVELS 135 int 136 default 3 if 64BIT && PARISC_PAGE_SIZE_4KB 137 default 2 138 139config SYS_SUPPORTS_HUGETLBFS 140 def_bool y if PA20 141 142 143menu "Processor type and features" 144 145choice 146 prompt "Processor type" 147 default PA7000 148 149config PA7000 150 bool "PA7000/PA7100" 151 help 152 This is the processor type of your CPU. This information is 153 used for optimizing purposes. In order to compile a kernel 154 that can run on all 32-bit PA CPUs (albeit not optimally fast), 155 you can specify "PA7000" here. 156 157 Specifying "PA8000" here will allow you to select a 64-bit kernel 158 which is required on some machines. 159 160config PA7100LC 161 bool "PA7100LC" 162 help 163 Select this option for the PCX-L processor, as used in the 164 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748, 165 D200, D210, D300, D310 and E-class 166 167config PA7200 168 bool "PA7200" 169 help 170 Select this option for the PCX-T' processor, as used in the 171 C100, C110, J100, J110, J210XC, D250, D260, D350, D360, 172 K100, K200, K210, K220, K400, K410 and K420 173 174config PA7300LC 175 bool "PA7300LC" 176 help 177 Select this option for the PCX-L2 processor, as used in the 178 744, A180, B132L, B160L, B180L, C132L, C160L, C180L, 179 D220, D230, D320 and D330. 180 181config PA8X00 182 bool "PA8000 and up" 183 help 184 Select this option for PCX-U to PCX-W2 processors. 185 186endchoice 187 188# Define implied options from the CPU selection here 189 190config PA20 191 def_bool y 192 depends on PA8X00 193 194config PA11 195 def_bool y 196 depends on PA7000 || PA7100LC || PA7200 || PA7300LC 197 select ARCH_HAS_SYNC_DMA_FOR_CPU 198 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 199 200config PREFETCH 201 def_bool y 202 depends on PA8X00 || PA7200 203 204config MLONGCALLS 205 bool "Enable the -mlong-calls compiler option for big kernels" 206 default y if !MODULES || UBSAN || FTRACE 207 default n 208 depends on PA8X00 209 help 210 If you configure the kernel to include many drivers built-in instead 211 as modules, the kernel executable may become too big, so that the 212 linker will not be able to resolve some long branches and fails to link 213 your vmlinux kernel. In that case enabling this option will help you 214 to overcome this limit by using the -mlong-calls compiler option. 215 216 Usually you want to say N here, unless you e.g. want to build 217 a kernel which includes all necessary drivers built-in and which can 218 be used for TFTP booting without the need to have an initrd ramdisk. 219 220 Enabling this option will probably slow down your kernel. 221 222config 64BIT 223 bool "64-bit kernel" 224 depends on PA8X00 225 help 226 Enable this if you want to support 64bit kernel on PA-RISC platform. 227 228 At the moment, only people willing to use more than 2GB of RAM, 229 or having a 64bit-only capable PA-RISC machine should say Y here. 230 231 Since there is no 64bit userland on PA-RISC, there is no point to 232 enable this option otherwise. The 64bit kernel is significantly bigger 233 and slower than the 32bit one. 234 235choice 236 prompt "Kernel page size" 237 default PARISC_PAGE_SIZE_4KB 238 239config PARISC_PAGE_SIZE_4KB 240 bool "4KB" 241 help 242 This lets you select the page size of the kernel. For best 243 performance, a page size of 16KB is recommended. For best 244 compatibility with 32bit applications, a page size of 4KB should be 245 selected (the vast majority of 32bit binaries work perfectly fine 246 with a larger page size). 247 248 4KB For best 32bit compatibility 249 16KB For best performance 250 64KB For best performance, might give more overhead. 251 252 If you don't know what to do, choose 4KB. 253 254config PARISC_PAGE_SIZE_16KB 255 bool "16KB" 256 depends on PA8X00 && BROKEN 257 258config PARISC_PAGE_SIZE_64KB 259 bool "64KB" 260 depends on PA8X00 && BROKEN 261 262endchoice 263 264config PARISC_SELF_EXTRACT 265 bool "Build kernel as self-extracting executable" 266 default y 267 help 268 Say Y if you want to build the parisc kernel as a kind of 269 self-extracting executable. 270 271 If you say N here, the kernel will be compressed with gzip 272 which can be loaded by the palo bootloader directly too. 273 274 If you don't know what to do here, say Y. 275 276config SMP 277 bool "Symmetric multi-processing support" 278 help 279 This enables support for systems with more than one CPU. If you have 280 a system with only one CPU, say N. If you have a system with more 281 than one CPU, say Y. 282 283 If you say N here, the kernel will run on uni- and multiprocessor 284 machines, but will use only one CPU of a multiprocessor machine. 285 On a uniprocessor machine, the kernel will run faster if you say N. 286 287 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO 288 available at <https://www.tldp.org/docs.html#howto>. 289 290 If you don't know what to do here, say N. 291 292config PARISC_CPU_TOPOLOGY 293 bool "Support cpu topology definition" 294 depends on SMP 295 default y 296 help 297 Support PARISC cpu topology definition. 298 299config SCHED_MC 300 bool "Multi-core scheduler support" 301 depends on PARISC_CPU_TOPOLOGY && PA8X00 302 help 303 Multi-core scheduler support improves the CPU scheduler's decision 304 making when dealing with multi-core CPU chips at a cost of slightly 305 increased overhead in some places. If unsure say N here. 306 307config IRQSTACKS 308 bool "Use separate kernel stacks when processing interrupts" 309 default y 310 help 311 If you say Y here the kernel will use separate kernel stacks 312 for handling hard and soft interrupts. This can help avoid 313 overflowing the process kernel stacks. 314 315config HOTPLUG_CPU 316 bool 317 default y if SMP 318 319config ARCH_SELECT_MEMORY_MODEL 320 def_bool y 321 depends on 64BIT 322 323config ARCH_SPARSEMEM_ENABLE 324 def_bool y 325 depends on 64BIT 326 327config ARCH_FLATMEM_ENABLE 328 def_bool y 329 330config ARCH_SPARSEMEM_DEFAULT 331 def_bool y 332 depends on ARCH_SPARSEMEM_ENABLE 333 334source "kernel/Kconfig.hz" 335 336config COMPAT 337 def_bool y 338 depends on 64BIT 339 select COMPAT_BINFMT_ELF if BINFMT_ELF 340 341config SYSVIPC_COMPAT 342 def_bool y 343 depends on COMPAT && SYSVIPC 344 345config AUDIT_ARCH 346 def_bool y 347 348config NR_CPUS 349 int "Maximum number of CPUs (2-32)" 350 range 2 32 351 depends on SMP 352 default "4" 353 354config KEXEC 355 bool "Kexec system call" 356 select KEXEC_CORE 357 help 358 kexec is a system call that implements the ability to shutdown your 359 current kernel, and to start another kernel. It is like a reboot 360 but it is independent of the system firmware. And like a reboot 361 you can start any kernel with it, not just Linux. 362 363 It is an ongoing process to be certain the hardware in a machine 364 shutdown, so do not be surprised if this code does not 365 initially work for you. 366 367config KEXEC_FILE 368 bool "kexec file based system call" 369 select KEXEC_CORE 370 select KEXEC_ELF 371 help 372 This enables the kexec_file_load() System call. This is 373 file based and takes file descriptors as system call argument 374 for kernel and initramfs as opposed to list of segments as 375 accepted by previous system call. 376 377endmenu 378 379source "drivers/firmware/Kconfig" 380 381source "drivers/parisc/Kconfig" 382