diff options
Diffstat (limited to 'arch/openrisc/Kconfig')
| -rw-r--r-- | arch/openrisc/Kconfig | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index a0f2e4a323c1..339df7324e9c 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # For a description of the syntax of this configuration file, # see Documentation/kbuild/kconfig-language.txt. @@ -21,13 +22,19 @@ config OPENRISC select HAVE_UID16 select GENERIC_ATOMIC64 select GENERIC_CLOCKEVENTS + select GENERIC_CLOCKEVENTS_BROADCAST select GENERIC_STRNCPY_FROM_USER select GENERIC_STRNLEN_USER + select GENERIC_SMP_IDLE_THREAD select MODULES_USE_ELF_RELA select HAVE_DEBUG_STACKOVERFLOW select OR1K_PIC select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1 select NO_BOOTMEM + select ARCH_USE_QUEUED_SPINLOCKS + select ARCH_USE_QUEUED_RWLOCKS + select OMPIC if SMP + select ARCH_WANT_FRAME_POINTERS config CPU_BIG_ENDIAN def_bool y @@ -55,6 +62,12 @@ config TRACE_IRQFLAGS_SUPPORT config GENERIC_CSUM def_bool y +config STACKTRACE_SUPPORT + def_bool y + +config LOCKDEP_SUPPORT + def_bool y + source "init/Kconfig" source "kernel/Kconfig.freezer" @@ -72,6 +85,17 @@ config OR1K_1200 endchoice +config DCACHE_WRITETHROUGH + bool "Have write through data caches" + default n + help + Select this if your implementation features write through data caches. + Selecting 'N' here will allow the kernel to force flushing of data + caches at relevant times. Most OpenRISC implementations support write- + through data caches. + + If unsure say N here + config OPENRISC_BUILTIN_DTB string "Builtin DTB" default "" @@ -104,8 +128,19 @@ config OPENRISC_HAVE_INST_DIV endmenu config NR_CPUS - int - default "1" + int "Maximum number of CPUs (2-32)" + range 2 32 + depends on SMP + default "2" + +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 don't know what to do here, say N. source kernel/Kconfig.hz source kernel/Kconfig.preempt @@ -124,6 +159,17 @@ config OPENRISC_NO_SPR_SR_DSX Say N here if you know that your OpenRISC processor has SPR_SR_DSX bit implemented. Say Y if you are unsure. +config OPENRISC_HAVE_SHADOW_GPRS + bool "Support for shadow gpr files" if !SMP + default y if SMP + help + Say Y here if your OpenRISC processor features shadowed + register files. They will in such case be used as a + scratch reg storage on exception entry. + + On SMP systems, this feature is mandatory. + On a unicore system it's safe to say N here if you are unsure. + config CMDLINE string "Default kernel command string" default "" |