diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 69 |
1 files changed, 32 insertions, 37 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 835b5f100e92..71fc5dd4123f 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -6,10 +6,9 @@ config ARM select ARCH_CORRECT_STACKTRACE_ON_KRETPROBE if HAVE_KRETPROBES && FRAME_POINTER && !ARM_UNWIND select ARCH_HAS_BINFMT_FLAT select ARCH_HAS_CACHE_LINE_SIZE if OF + select ARCH_HAS_CC_CAN_LINK select ARCH_HAS_CPU_CACHE_ALIASING select ARCH_HAS_CPU_FINALIZE_INIT if MMU - select ARCH_HAS_CRC32 if KERNEL_MODE_NEON - select ARCH_HAS_CRC_T10DIF if KERNEL_MODE_NEON select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_HAS_DEBUG_VIRTUAL if MMU select ARCH_HAS_DMA_ALLOC if MMU @@ -40,12 +39,15 @@ config ARM select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7 select ARCH_NEED_CMPXCHG_1_EMU if CPU_V6 select ARCH_SUPPORTS_ATOMIC_RMW - select ARCH_SUPPORTS_CFI_CLANG + select ARCH_SUPPORTS_CFI select ARCH_SUPPORTS_HUGETLBFS if ARM_LPAE select ARCH_SUPPORTS_PER_VMA_LOCK + select ARCH_SUPPORTS_RT select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF select ARCH_USE_MEMTEST + # https://github.com/llvm/llvm-project/commit/d130f402642fba3d065aacb506cb061c899558de + select ARCH_USES_CFI_GENERIC_LLVM_PASS if CLANG_VERSION < 220000 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU select ARCH_WANT_GENERAL_HUGETLB select ARCH_WANT_IPC_PARSE_VERSION @@ -82,16 +84,16 @@ config ARM select HAS_IOPORT select HAVE_ARCH_AUDITSYSCALL if AEABI && !OABI_COMPAT select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6 - select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU + select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU && (!PREEMPT_RT || !SMP) select HAVE_ARCH_KFENCE if MMU && !XIP_KERNEL select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU select HAVE_ARCH_KASAN if MMU && !XIP_KERNEL select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN + select HAVE_ARCH_KSTACK_ERASE select HAVE_ARCH_MMAP_RND_BITS if MMU select HAVE_ARCH_PFN_VALID select HAVE_ARCH_SECCOMP select HAVE_ARCH_SECCOMP_FILTER if AEABI && !OABI_COMPAT - select HAVE_ARCH_STACKLEAK select HAVE_ARCH_THREAD_STRUCT_WHITELIST select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE if ARM_LPAE @@ -102,14 +104,15 @@ config ARM select HAVE_BUILDTIME_MCOUNT_SORT select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL select HAVE_DMA_CONTIGUOUS if MMU + select HAVE_EXTRA_IPI_TRACEPOINTS select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU select HAVE_EXIT_THREAD select HAVE_GUP_FAST if ARM_LPAE - select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL select HAVE_FUNCTION_ERROR_INJECTION select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_FUNCTION_GRAPH_FREGS select HAVE_FUNCTION_TRACER if !XIP_KERNEL select HAVE_GCC_PLUGINS select HAVE_HW_BREAKPOINT if PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7) @@ -121,7 +124,7 @@ config ARM select HAVE_KERNEL_XZ select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M select HAVE_KRETPROBES if HAVE_KPROBES - select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if (LD_VERSION >= 23600 || LD_IS_LLD) + select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if (LD_VERSION >= 23600 || LD_IS_LLD) && LD_CAN_USE_KEEP_IN_OVERLAY select HAVE_MOD_ARCH_SPECIFIC select HAVE_NMI select HAVE_OPTPROBES if !THUMB2_KERNEL @@ -133,6 +136,7 @@ config ARM select MMU_GATHER_RCU_TABLE_FREE if SMP && ARM_LPAE select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RSEQ + select HAVE_RUST if CPU_LITTLE_ENDIAN && CPU_32v7 select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS select HAVE_UID16 @@ -167,15 +171,12 @@ config ARM <http://www.arm.linux.org.uk/>. config ARM_HAS_GROUP_RELOCS - def_bool y - depends on !LD_IS_LLD || LLD_VERSION >= 140000 - depends on !COMPILE_TEST + def_bool !COMPILE_TEST help Whether or not to use R_ARM_ALU_PC_Gn or R_ARM_LDR_PC_Gn group - relocations, which have been around for a long time, but were not - supported in LLD until version 14. The combined range is -/+ 256 MiB, - which is usually sufficient, but not for allyesconfig, so we disable - this feature when doing compile testing. + relocations. The combined range is -/+ 256 MiB, which is usually + sufficient, but not for allyesconfig, so we disable this feature + when doing compile testing. config ARM_DMA_USE_IOMMU bool @@ -394,8 +395,6 @@ source "arch/arm/mach-highbank/Kconfig" source "arch/arm/mach-hisi/Kconfig" -source "arch/arm/mach-hpe/Kconfig" - source "arch/arm/mach-imx/Kconfig" source "arch/arm/mach-ixp4xx/Kconfig" @@ -942,28 +941,14 @@ config IRQSTACKS config ARM_CPU_TOPOLOGY bool "Support cpu topology definition" depends on SMP && CPU_V7 + select ARCH_SUPPORTS_SCHED_MC + select ARCH_SUPPORTS_SCHED_SMT default y help Support ARM cpu topology definition. The MPIDR register defines affinity between processors which is then used to describe the cpu topology of an ARM System. -config SCHED_MC - bool "Multi-core scheduler support" - depends on ARM_CPU_TOPOLOGY - 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 SCHED_SMT - bool "SMT scheduler support" - depends on ARM_CPU_TOPOLOGY - help - Improves the CPU scheduler's decision making when dealing with - MultiThreading at a cost of slightly increased overhead in some - places. If unsure say N here. - config HAVE_ARM_SCU bool help @@ -1178,8 +1163,6 @@ config AEABI disambiguate both ABIs and allow for backward compatibility support (selected with CONFIG_OABI_COMPAT). - To use this you need GCC version 4.0.0 or later. - config OABI_COMPAT bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" depends on AEABI && !THUMB2_KERNEL @@ -1232,7 +1215,7 @@ config HIGHMEM config HIGHPTE bool "Allocate 2nd-level pagetables from highmem" if EXPERT - depends on HIGHMEM + depends on HIGHMEM && !PREEMPT_RT default y help The VM uses one page of physical memory for each page table. @@ -1339,6 +1322,7 @@ config UACCESS_WITH_MEMCPY config PARAVIRT bool "Enable paravirtualization code" + select HAVE_PV_STEAL_CLOCK_GEN help This changes the kernel so it can modify itself when it is run under a hypervisor, potentially improving performance significantly @@ -1379,8 +1363,7 @@ config CC_HAVE_STACKPROTECTOR_TLS config STACKPROTECTOR_PER_TASK bool "Use a unique stack canary value for each task" depends on STACKPROTECTOR && CURRENT_POINTER_IN_TPIDRURO && !XIP_DEFLATED_DATA - depends on GCC_PLUGINS || CC_HAVE_STACKPROTECTOR_TLS - select GCC_PLUGIN_ARM_SSP_PER_TASK if !CC_HAVE_STACKPROTECTOR_TLS + depends on CC_HAVE_STACKPROTECTOR_TLS default y help Due to the fact that GCC uses an ordinary symbol reference from @@ -1735,6 +1718,18 @@ config KERNEL_MODE_NEON endmenu +config ARCH_CC_CAN_LINK + bool + default $(cc_can_link_user,-mlittle-endian) if CPU_LITTLE_ENDIAN + default $(cc_can_link_user,-mbig-endian -mbe8) if CPU_ENDIAN_BE8 + default $(cc_can_link_user,-mbig-endian -mbe32) if CPU_ENDIAN_BE32 + +config ARCH_USERFLAGS + string + default "-mlittle-endian" if CPU_LITTLE_ENDIAN + default "-mbig-endian -mbe8" if CPU_ENDIAN_BE8 + default "-mbig-endian -mbe32" if CPU_ENDIAN_BE32 + menu "Power management options" source "kernel/power/Kconfig" |