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Commit d5116b40 authored by K. Y. Srinivasan's avatar K. Y. Srinivasan Committed by Greg Kroah-Hartman
Browse files

Drivers: hv: vmbus: Restructure the clockevents code 



Move the relevant code that programs the hypervisor to an architecture
specific file.

Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e810e48c

arch/x86/include/asm/mshyperv.h

+4 −0
Original line number Diff line number Diff line
@@ -136,6 +136,10 @@ 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)



void hyperv_callback_vector(void);

#ifdef CONFIG_TRACING

#define trace_hyperv_callback_vector hyperv_callback_vector

drivers/hv/hv.c

+5 −5
Original line number Diff line number Diff line
@@ -118,16 +118,16 @@ static int hv_ce_set_next_event(unsigned long delta, 


	WARN_ON(!clockevent_state_oneshot(evt));



	rdmsrl(HV_X64_MSR_TIME_REF_COUNT, current_tick);

	hv_get_current_tick(current_tick);

	current_tick += delta;

	wrmsrl(HV_X64_MSR_STIMER0_COUNT, current_tick);

	hv_init_timer(HV_X64_MSR_STIMER0_COUNT, current_tick);

	return 0;

}



static int hv_ce_shutdown(struct clock_event_device *evt)

{

	wrmsrl(HV_X64_MSR_STIMER0_COUNT, 0);

	wrmsrl(HV_X64_MSR_STIMER0_CONFIG, 0);

	hv_init_timer(HV_X64_MSR_STIMER0_COUNT, 0);

	hv_init_timer_config(HV_X64_MSR_STIMER0_CONFIG, 0);



	return 0;

}
@@ -139,7 +139,7 @@ static int hv_ce_set_oneshot(struct clock_event_device *evt) 
	timer_cfg.enable = 1;

	timer_cfg.auto_enable = 1;

	timer_cfg.sintx = VMBUS_MESSAGE_SINT;

	wrmsrl(HV_X64_MSR_STIMER0_CONFIG, timer_cfg.as_uint64);

	hv_init_timer_config(HV_X64_MSR_STIMER0_CONFIG, timer_cfg.as_uint64);



	return 0;

}