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Diffstat (limited to 'arch/parisc/Kconfig')
| -rw-r--r-- | arch/parisc/Kconfig | 369 |
1 files changed, 369 insertions, 0 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig new file mode 100644 index 000000000..8e6d83f79 --- /dev/null +++ b/arch/parisc/Kconfig @@ -0,0 +1,369 @@ +# 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 NO_BOOTMEM + 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_NONCOHERENT_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. |