diff options
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/cpufeature.c | 25 | ||||
| -rw-r--r-- | arch/arm64/kernel/image-vars.h | 4 |
2 files changed, 0 insertions, 29 deletions
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 68a0545285a1..d9c3879728bc 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -133,31 +133,12 @@ DEFINE_STATIC_KEY_FALSE(arm64_mismatched_32bit_el0); */ static cpumask_var_t cpu_32bit_el0_mask __cpumask_var_read_mostly; -/* - * Flag to indicate if we have computed the system wide - * capabilities based on the boot time active CPUs. This - * will be used to determine if a new booting CPU should - * go through the verification process to make sure that it - * supports the system capabilities, without using a hotplug - * notifier. This is also used to decide if we could use - * the fast path for checking constant CPU caps. - */ -DEFINE_STATIC_KEY_FALSE(arm64_const_caps_ready); -EXPORT_SYMBOL(arm64_const_caps_ready); -static inline void finalize_system_capabilities(void) -{ - static_branch_enable(&arm64_const_caps_ready); -} - void dump_cpu_features(void) { /* file-wide pr_fmt adds "CPU features: " prefix */ pr_emerg("0x%*pb\n", ARM64_NCAPS, &cpu_hwcaps); } -DEFINE_STATIC_KEY_ARRAY_FALSE(cpu_hwcap_keys, ARM64_NCAPS); -EXPORT_SYMBOL(cpu_hwcap_keys); - #define __ARM64_FTR_BITS(SIGNED, VISIBLE, STRICT, TYPE, SHIFT, WIDTH, SAFE_VAL) \ { \ .sign = SIGNED, \ @@ -2944,9 +2925,6 @@ static void __init enable_cpu_capabilities(u16 scope_mask) if (!cpus_have_cap(num)) continue; - /* Ensure cpus_have_const_cap(num) works */ - static_branch_enable(&cpu_hwcap_keys[num]); - if (boot_scope && caps->cpu_enable) /* * Capabilities with SCOPE_BOOT_CPU scope are finalised @@ -3268,9 +3246,6 @@ void __init setup_cpu_features(void) sme_setup(); minsigstksz_setup(); - /* Advertise that we have computed the system capabilities */ - finalize_system_capabilities(); - /* * Check for sane CTR_EL0.CWG value. */ diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h index afa69e04e75e..118973a6ab05 100644 --- a/arch/arm64/kernel/image-vars.h +++ b/arch/arm64/kernel/image-vars.h @@ -89,10 +89,6 @@ KVM_NVHE_ALIAS(__icache_flags); /* VMID bits set by the KVM VMID allocator */ KVM_NVHE_ALIAS(kvm_arm_vmid_bits); -/* Kernel symbols needed for cpus_have_final/const_caps checks. */ -KVM_NVHE_ALIAS(arm64_const_caps_ready); -KVM_NVHE_ALIAS(cpu_hwcap_keys); - /* Static keys which are set if a vGIC trap should be handled in hyp. */ KVM_NVHE_ALIAS(vgic_v2_cpuif_trap); KVM_NVHE_ALIAS(vgic_v3_cpuif_trap); |