| # SPDX-License-Identifier: GPL-2.0 |
| config PARISC |
| def_bool y |
| select ARCH_MIGHT_HAVE_PC_PARPORT |
| select HAVE_IDE |
| select HAVE_OPROFILE |
| select HAVE_FUNCTION_TRACER |
| select HAVE_FUNCTION_GRAPH_TRACER |
| select HAVE_SYSCALL_TRACEPOINTS |
| select ARCH_WANT_FRAME_POINTERS |
| select ARCH_HAS_ELF_RANDOMIZE |
| select ARCH_HAS_STRICT_KERNEL_RWX |
| select ARCH_HAS_UBSAN_SANITIZE_ALL |
| select ARCH_SUPPORTS_MEMORY_FAILURE |
| select RTC_CLASS |
| select RTC_DRV_GENERIC |
| select INIT_ALL_POSSIBLE |
| select HAVE_MEMBLOCK |
| select BUG |
| select BUILDTIME_EXTABLE_SORT |
| select HAVE_PERF_EVENTS |
| select HAVE_KERNEL_BZIP2 |
| select HAVE_KERNEL_GZIP |
| select HAVE_KERNEL_LZ4 |
| select HAVE_KERNEL_LZMA |
| select HAVE_KERNEL_LZO |
| select HAVE_KERNEL_XZ |
| select GENERIC_ATOMIC64 if !64BIT |
| select GENERIC_IRQ_PROBE |
| select GENERIC_PCI_IOMAP |
| select ARCH_HAVE_NMI_SAFE_CMPXCHG |
| select GENERIC_SMP_IDLE_THREAD |
| select GENERIC_CPU_DEVICES |
| select GENERIC_STRNCPY_FROM_USER |
| select SYSCTL_ARCH_UNALIGN_ALLOW |
| select SYSCTL_EXCEPTION_TRACE |
| select HAVE_MOD_ARCH_SPECIFIC |
| select VIRT_TO_BUS |
| select MODULES_USE_ELF_RELA |
| select CLONE_BACKWARDS |
| select TTY # Needed for pdc_cons.c |
| select HAVE_DEBUG_STACKOVERFLOW |
| select HAVE_ARCH_AUDITSYSCALL |
| select HAVE_ARCH_HASH |
| select HAVE_ARCH_SECCOMP_FILTER |
| select HAVE_ARCH_TRACEHOOK |
| select HAVE_REGS_AND_STACK_ACCESS_API |
| select GENERIC_SCHED_CLOCK |
| select HAVE_UNSTABLE_SCHED_CLOCK if SMP |
| select GENERIC_CLOCKEVENTS |
| select ARCH_NO_COHERENT_DMA_MMAP |
| select CPU_NO_EFFICIENT_FFS |
| select NEED_DMA_MAP_STATE |
| select NEED_SG_DMA_LENGTH |
| |
| help |
| The PA-RISC microprocessor is designed by Hewlett-Packard and used |
| in many of their workstations & servers (HP9000 700 and 800 series, |
| and later HP3000 series). The PA-RISC Linux project home page is |
| at <http://www.parisc-linux.org/>. |
| |
| config CPU_BIG_ENDIAN |
| def_bool y |
| |
| config MMU |
| def_bool y |
| |
| config STACK_GROWSUP |
| def_bool y |
| |
| config GENERIC_LOCKBREAK |
| bool |
| default y |
| depends on SMP && PREEMPT |
| |
| config RWSEM_GENERIC_SPINLOCK |
| def_bool y |
| |
| config RWSEM_XCHGADD_ALGORITHM |
| bool |
| |
| config ARCH_HAS_ILOG2_U32 |
| bool |
| default n |
| |
| config ARCH_HAS_ILOG2_U64 |
| bool |
| default n |
| |
| config GENERIC_BUG |
| bool |
| default y |
| depends on BUG |
| |
| config GENERIC_HWEIGHT |
| bool |
| default y |
| |
| config GENERIC_CALIBRATE_DELAY |
| bool |
| default y |
| |
| config TIME_LOW_RES |
| bool |
| depends on SMP |
| default y |
| |
| # unless you want to implement ACPI on PA-RISC ... ;-) |
| config PM |
| bool |
| |
| config STACKTRACE_SUPPORT |
| def_bool y |
| |
| config ISA_DMA_API |
| bool |
| |
| config ARCH_MAY_HAVE_PC_FDC |
| bool |
| depends on BROKEN |
| default y |
| |
| config PGTABLE_LEVELS |
| int |
| default 3 if 64BIT && PARISC_PAGE_SIZE_4KB |
| default 2 |
| |
| config SYS_SUPPORTS_HUGETLBFS |
| def_bool y if PA20 |
| |
| |
| menu "Processor type and features" |
| |
| choice |
| prompt "Processor type" |
| default PA7000 |
| |
| config PA7000 |
| bool "PA7000/PA7100" |
| ---help--- |
| This is the processor type of your CPU. This information is |
| used for optimizing purposes. In order to compile a kernel |
| that can run on all 32-bit PA CPUs (albeit not optimally fast), |
| you can specify "PA7000" here. |
| |
| Specifying "PA8000" here will allow you to select a 64-bit kernel |
| which is required on some machines. |
| |
| config PA7100LC |
| bool "PA7100LC" |
| help |
| Select this option for the PCX-L processor, as used in the |
| 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748, |
| D200, D210, D300, D310 and E-class |
| |
| config PA7200 |
| bool "PA7200" |
| help |
| Select this option for the PCX-T' processor, as used in the |
| C100, C110, J100, J110, J210XC, D250, D260, D350, D360, |
| K100, K200, K210, K220, K400, K410 and K420 |
| |
| config PA7300LC |
| bool "PA7300LC" |
| help |
| Select this option for the PCX-L2 processor, as used in the |
| 744, A180, B132L, B160L, B180L, C132L, C160L, C180L, |
| D220, D230, D320 and D330. |
| |
| config PA8X00 |
| bool "PA8000 and up" |
| help |
| Select this option for PCX-U to PCX-W2 processors. |
| |
| endchoice |
| |
| # Define implied options from the CPU selection here |
| |
| config PA20 |
| def_bool y |
| depends on PA8X00 |
| |
| config PA11 |
| def_bool y |
| depends on PA7000 || PA7100LC || PA7200 || PA7300LC |
| select ARCH_HAS_SYNC_DMA_FOR_CPU |
| select ARCH_HAS_SYNC_DMA_FOR_DEVICE |
| select DMA_DIRECT_OPS |
| select DMA_NONCOHERENT_CACHE_SYNC |
| |
| config PREFETCH |
| def_bool y |
| depends on PA8X00 || PA7200 |
| |
| config MLONGCALLS |
| bool "Enable the -mlong-calls compiler option for big kernels" |
| default y |
| depends on PA8X00 |
| help |
| If you configure the kernel to include many drivers built-in instead |
| as modules, the kernel executable may become too big, so that the |
| linker will not be able to resolve some long branches and fails to link |
| your vmlinux kernel. In that case enabling this option will help you |
| to overcome this limit by using the -mlong-calls compiler option. |
| |
| Usually you want to say N here, unless you e.g. want to build |
| a kernel which includes all necessary drivers built-in and which can |
| be used for TFTP booting without the need to have an initrd ramdisk. |
| |
| Enabling this option will probably slow down your kernel. |
| |
| config 64BIT |
| bool "64-bit kernel" |
| depends on PA8X00 |
| help |
| Enable this if you want to support 64bit kernel on PA-RISC platform. |
| |
| At the moment, only people willing to use more than 2GB of RAM, |
| or having a 64bit-only capable PA-RISC machine should say Y here. |
| |
| Since there is no 64bit userland on PA-RISC, there is no point to |
| enable this option otherwise. The 64bit kernel is significantly bigger |
| and slower than the 32bit one. |
| |
| choice |
| prompt "Kernel page size" |
| default PARISC_PAGE_SIZE_4KB |
| |
| config PARISC_PAGE_SIZE_4KB |
| bool "4KB" |
| help |
| This lets you select the page size of the kernel. For best |
| performance, a page size of 16KB is recommended. For best |
| compatibility with 32bit applications, a page size of 4KB should be |
| selected (the vast majority of 32bit binaries work perfectly fine |
| with a larger page size). |
| |
| 4KB For best 32bit compatibility |
| 16KB For best performance |
| 64KB For best performance, might give more overhead. |
| |
| If you don't know what to do, choose 4KB. |
| |
| config PARISC_PAGE_SIZE_16KB |
| bool "16KB" |
| depends on PA8X00 && BROKEN |
| |
| config PARISC_PAGE_SIZE_64KB |
| bool "64KB" |
| depends on PA8X00 && BROKEN |
| |
| endchoice |
| |
| config PARISC_SELF_EXTRACT |
| bool "Build kernel as self-extracting executable" |
| default y |
| help |
| Say Y if you want to build the parisc kernel as a kind of |
| self-extracting executable. |
| |
| If you say N here, the kernel will be compressed with gzip |
| which can be loaded by the palo bootloader directly too. |
| |
| If you don't know what to do here, say Y. |
| |
| config SMP |
| bool "Symmetric multi-processing support" |
| ---help--- |
| This enables support for systems with more than one CPU. If you have |
| a system with only one CPU, say N. If you have a system with more |
| than one CPU, say Y. |
| |
| If you say N here, the kernel will run on uni- and multiprocessor |
| machines, but will use only one CPU of a multiprocessor machine. |
| On a uniprocessor machine, the kernel will run faster if you say N. |
| |
| See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO |
| available at <http://www.tldp.org/docs.html#howto>. |
| |
| If you don't know what to do here, say N. |
| |
| config PARISC_CPU_TOPOLOGY |
| bool "Support cpu topology definition" |
| depends on SMP |
| default y |
| help |
| Support PARISC cpu topology definition. |
| |
| config SCHED_MC |
| bool "Multi-core scheduler support" |
| depends on PARISC_CPU_TOPOLOGY && PA8X00 |
| help |
| Multi-core scheduler support improves the CPU scheduler's decision |
| making when dealing with multi-core CPU chips at a cost of slightly |
| increased overhead in some places. If unsure say N here. |
| |
| config IRQSTACKS |
| bool "Use separate kernel stacks when processing interrupts" |
| default y |
| help |
| If you say Y here the kernel will use separate kernel stacks |
| for handling hard and soft interrupts. This can help avoid |
| overflowing the process kernel stacks. |
| |
| config HOTPLUG_CPU |
| bool |
| default y if SMP |
| |
| config ARCH_SELECT_MEMORY_MODEL |
| def_bool y |
| depends on 64BIT |
| |
| config ARCH_DISCONTIGMEM_ENABLE |
| def_bool y |
| depends on 64BIT |
| |
| config ARCH_FLATMEM_ENABLE |
| def_bool y |
| |
| config ARCH_DISCONTIGMEM_DEFAULT |
| def_bool y |
| depends on ARCH_DISCONTIGMEM_ENABLE |
| |
| config NODES_SHIFT |
| int |
| default "3" |
| depends on NEED_MULTIPLE_NODES |
| |
| source "kernel/Kconfig.hz" |
| |
| config COMPAT |
| def_bool y |
| depends on 64BIT |
| select COMPAT_BINFMT_ELF if BINFMT_ELF |
| |
| config SYSVIPC_COMPAT |
| def_bool y |
| depends on COMPAT && SYSVIPC |
| |
| config AUDIT_ARCH |
| def_bool y |
| |
| config NR_CPUS |
| int "Maximum number of CPUs (2-32)" |
| range 2 32 |
| depends on SMP |
| default "4" |
| |
| endmenu |
| |
| |
| source "drivers/parisc/Kconfig" |
| |
| config SECCOMP |
| def_bool y |
| prompt "Enable seccomp to safely compute untrusted bytecode" |
| ---help--- |
| This kernel feature is useful for number crunching applications |
| that may need to compute untrusted bytecode during their |
| execution. By using pipes or other transports made available to |
| the process as file descriptors supporting the read/write |
| syscalls, it's possible to isolate those applications in |
| their own address space using seccomp. Once seccomp is |
| enabled via prctl(PR_SET_SECCOMP), it cannot be disabled |
| and the task is only allowed to execute a few safe syscalls |
| defined by each seccomp mode. |
| |
| If unsure, say Y. Only embedded should say N here. |
