diff options
Diffstat (limited to 'arch/arm64/kernel/entry-fpsimd.S')
| -rw-r--r-- | arch/arm64/kernel/entry-fpsimd.S | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/kernel/entry-fpsimd.S b/arch/arm64/kernel/entry-fpsimd.S index c44a82f146b1..1ffe15459c92 100644 --- a/arch/arm64/kernel/entry-fpsimd.S +++ b/arch/arm64/kernel/entry-fpsimd.S @@ -64,4 +64,20 @@ ENTRY(fpsimd_load_partial_state) ret ENDPROC(fpsimd_load_partial_state) +#ifdef CONFIG_ENABLE_FP_SIMD_SETTINGS +ENTRY(fpsimd_enable_trap) + mrs x0, cpacr_el1 + bic x0, x0, #(3 << 20) + orr x0, x0, #(1 << 20) + msr cpacr_el1, x0 + ret +ENDPROC(fpsimd_enable_trap) +ENTRY(fpsimd_disable_trap) + mrs x0, cpacr_el1 + orr x0, x0, #(3 << 20) + msr cpacr_el1, x0 + ret +ENDPROC(fpsimd_disable_trap) +#endif + #endif |