defconfig: lmi: Enable userspace CNTVCT_EL0 access for vDSO

The vDSO time calls require access to the CNTVCT_EL0 register in order to work correctly. Without it, they fall back to a syscall after failing to access the register, which makes vDSO calls even slower than direct syscalls. Signed-off-by: Danny Lin <[email protected]> Signed-off-by: Official-Ayrton990 <[email protected]>
KONA-DEVS · Nov 29, 2020 · e68e6a7 · e68e6a7
1 parent 368dee7
commit e68e6a7
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/arm64/configs/vendor/lmi_user_defconfig b/arch/arm64/configs/vendor/lmi_user_defconfig
@@ -566,6 +566,7 @@ CONFIG_MSM_GPUCC_KONA=y
 CONFIG_MSM_NPUCC_KONA=y
 CONFIG_HWSPINLOCK=y
 CONFIG_HWSPINLOCK_QCOM=y
+CONFIG_ARM_ARCH_TIMER_VCT_ACCESS=y
 CONFIG_MAILBOX=y
 CONFIG_QCOM_APCS_IPC=y
 CONFIG_MSM_QMP=y