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Commit e546d778 authored by K. Y. Srinivasan's avatar K. Y. Srinivasan Committed by Greg Kroah-Hartman
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Drivers: hv: vmbus: Get the current time from the current clocksource 



The current code uses the MSR based mechanism to get the current tick.
Use the current clock source as that might be more optimal.

Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7975bd4c

arch/x86/include/asm/mshyperv.h

+0 −1
Original line number Diff line number Diff line
@@ -137,7 +137,6 @@ static inline void vmbus_signal_eom(struct hv_message *msg, u32 old_msg_type) 
	}

}



#define hv_get_current_tick(tick) rdmsrl(HV_X64_MSR_TIME_REF_COUNT, tick)

#define hv_init_timer(timer, tick) wrmsrl(timer, tick)

#define hv_init_timer_config(config, val) wrmsrl(config, val)

drivers/hv/hv.c

+1 −1
Original line number Diff line number Diff line
@@ -96,7 +96,7 @@ static int hv_ce_set_next_event(unsigned long delta, 


	WARN_ON(!clockevent_state_oneshot(evt));



	hv_get_current_tick(current_tick);

	current_tick = hyperv_cs->read(NULL);

	current_tick += delta;

	hv_init_timer(HV_X64_MSR_STIMER0_COUNT, current_tick);

	return 0;