diff options
Diffstat (limited to 'arch/arm64/kernel/cpu_errata.c')
| -rw-r--r-- | arch/arm64/kernel/cpu_errata.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 5706e74c5578..e29e0fea63fb 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -121,22 +121,6 @@ cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused) sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCI, 0); } -static DEFINE_RAW_SPINLOCK(reg_user_mask_modification); -static void __maybe_unused -cpu_clear_bf16_from_user_emulation(const struct arm64_cpu_capabilities *__unused) -{ - struct arm64_ftr_reg *regp; - - regp = get_arm64_ftr_reg(SYS_ID_AA64ISAR1_EL1); - if (!regp) - return; - - raw_spin_lock(®_user_mask_modification); - if (regp->user_mask & ID_AA64ISAR1_EL1_BF16_MASK) - regp->user_mask &= ~ID_AA64ISAR1_EL1_BF16_MASK; - raw_spin_unlock(®_user_mask_modification); -} - #define CAP_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \ .matches = is_affected_midr_range, \ .midr_range = MIDR_RANGE(model, v_min, r_min, v_max, r_max) @@ -727,7 +711,6 @@ const struct arm64_cpu_capabilities arm64_errata[] = { /* Cortex-A510 r0p0 - r1p1 */ ERRATA_MIDR_RANGE(MIDR_CORTEX_A510, 0, 0, 1, 1), MIDR_FIXED(MIDR_CPU_VAR_REV(1,1), BIT(25)), - .cpu_enable = cpu_clear_bf16_from_user_emulation, }, #endif #ifdef CONFIG_ARM64_ERRATUM_2966298 |