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

Commit 01b986d2 authored by Greg Hackmann's avatar Greg Hackmann Committed by Greg Kroah-Hartman
Browse files

clocksource: arch_timer: make virtual counter access configurable 



Change-Id: Ibdb1fd768b748002b90bfc165612c12c8311f8a2
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@google.com>
parent 19b998cb

drivers/clocksource/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -305,6 +305,14 @@ config ARM_ARCH_TIMER_EVTSTREAM 
	  This must be disabled for hardware validation purposes to detect any

	  hardware anomalies of missing events.



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 FSL_ERRATUM_A008585

	bool "Workaround for Freescale/NXP Erratum A-008585"

	default y

drivers/clocksource/arm_arch_timer.c

+4 −1
Original line number Diff line number Diff line
@@ -449,7 +449,10 @@ static void arch_counter_set_user_access(void) 
			| ARCH_TIMER_USR_PCT_ACCESS_EN);



	/* Enable user access to the virtual counter */

	if (IS_ENABLED(CONFIG_ARM_ARCH_TIMER_VCT_ACCESS))

		cntkctl |= ARCH_TIMER_USR_VCT_ACCESS_EN;

	else

		cntkctl &= ~ARCH_TIMER_USR_VCT_ACCESS_EN;



	arch_timer_set_cntkctl(cntkctl);

}