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Drivers: hv: vmbus: Restructure the clockevents code

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

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2017-01-19 11:51:51 -07:00 committed by Greg Kroah-Hartman
parent e810e48c0c
commit d5116b4091
2 changed files with 9 additions and 5 deletions
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4
arch/x86/include/asm/mshyperv.h
View File

@ -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

10
drivers/hv/hv.c
View File

@ -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;
}