diff options
Diffstat (limited to 'arch/loongarch/Kconfig')
| -rw-r--r-- | arch/loongarch/Kconfig | 35 |
1 files changed, 14 insertions, 21 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index f0abc38c40ac..ea683bcea14c 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -9,6 +9,7 @@ config LOONGARCH select ACPI_PPTT if ACPI select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI select ARCH_BINFMT_ELF_STATE + select ARCH_NEEDS_DEFER_KASAN select ARCH_DISABLE_KASAN_INLINE select ARCH_ENABLE_MEMORY_HOTPLUG select ARCH_ENABLE_MEMORY_HOTREMOVE @@ -70,6 +71,8 @@ config LOONGARCH select ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS select ARCH_SUPPORTS_NUMA_BALANCING select ARCH_SUPPORTS_RT + select ARCH_SUPPORTS_SCHED_SMT if SMP + select ARCH_SUPPORTS_SCHED_MC if SMP select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF select ARCH_USE_MEMTEST @@ -108,8 +111,6 @@ config LOONGARCH select GENERIC_SCHED_CLOCK select GENERIC_SMP_IDLE_THREAD select GENERIC_TIME_VSYSCALL - select GENERIC_VDSO_DATA_STORE - select GENERIC_VDSO_TIME_NS select GPIOLIB select HAS_IOPORT select HAVE_ARCH_AUDITSYSCALL @@ -140,6 +141,7 @@ config LOONGARCH select HAVE_EBPF_JIT select HAVE_EFFICIENT_UNALIGNED_ACCESS if !ARCH_STRICT_ALIGN select HAVE_EXIT_THREAD + select HAVE_GENERIC_TIF_BITS select HAVE_GUP_FAST select HAVE_FTRACE_GRAPH_FUNC select HAVE_FUNCTION_ARG_ACCESS_API @@ -298,6 +300,10 @@ config AS_HAS_LVZ_EXTENSION config CC_HAS_ANNOTATE_TABLEJUMP def_bool $(cc-option,-mannotate-tablejump) +config RUSTC_HAS_ANNOTATE_TABLEJUMP + depends on RUST + def_bool $(rustc-option,-Cllvm-args=--loongarch-annotate-tablejump) + menu "Kernel type and options" source "kernel/Kconfig.hz" @@ -448,23 +454,6 @@ config EFI_STUB This kernel feature allows the kernel to be loaded directly by EFI firmware without the use of a bootloader. -config SCHED_SMT - bool "SMT scheduler support" - depends on SMP - default y - help - Improves scheduler's performance when there are multiple - threads in one physical core. - -config SCHED_MC - bool "Multi-core scheduler support" - depends on SMP - default y - 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. - config SMP bool "Multi-Processing support" help @@ -563,10 +552,14 @@ config ARCH_STRICT_ALIGN -mstrict-align build parameter to prevent unaligned accesses. CPUs with h/w unaligned access support: - Loongson-2K2000/2K3000/3A5000/3C5000/3D5000. + Loongson-2K2000/2K3000 and all of Loongson-3 series processors + based on LoongArch. CPUs without h/w unaligned access support: - Loongson-2K500/2K1000. + Loongson-2K0300/2K0500/2K1000. + + If you want to make sure whether to support unaligned memory access + on your hardware, please read the bit 20 (UAL) of CPUCFG1 register. This option is enabled by default to make the kernel be able to run on all LoongArch systems. But you can disable it manually if you want |