Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit eb08f541 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
Browse files

Merge "clocksource: arch_timer: make virtual counter access configurable"

parents cc61138e dc9b4c45

drivers/clocksource/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -385,6 +385,14 @@ config SUN50I_ERRATUM_UNKNOWN1 
	  the Allwinner A64 SoC. The workaround will only be active if the

	  allwinner,erratum-unknown1 property is found in the timer node.



config ARM_ARCH_TIMER_VCT_ACCESS

	bool "Support for ARM architected timer virtual counter access in userspace"

	default !ARM64

	depends on ARM_ARCH_TIMER

	help

	  This option enables support for reading the ARM architected timer's

	  virtual counter in userspace.



config ARM_GLOBAL_TIMER

	bool "Support for the ARM global timer" if COMPILE_TEST

	select TIMER_OF if OF

drivers/clocksource/arm_arch_timer.c

+2 −1
Original line number Diff line number Diff line
@@ -853,7 +853,8 @@ static void arch_counter_set_user_access(void) 
	 * need to be workaround. The vdso may have been already

	 * disabled though.

	 */

	if (arch_timer_this_cpu_has_cntvct_wa())

	if (arch_timer_this_cpu_has_cntvct_wa() ||

	    !IS_ENABLED(CONFIG_ARM_ARCH_TIMER_VCT_ACCESS))

		pr_info("CPU%d: Trapping CNTVCT access\n", smp_processor_id());

	else

		cntkctl |= ARCH_TIMER_USR_VCT_ACCESS_EN;