summaryrefslogtreecommitdiffstats
path: root/drivers/hv/hv.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hv/hv.c')
-rw-r--r--drivers/hv/hv.c45
1 files changed, 19 insertions, 26 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index fd93cfde96d0..c641faf92e60 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -274,7 +274,7 @@ static int hv_ce_set_next_event(unsigned long delta,
{
cycle_t current_tick;
- WARN_ON(evt->mode != CLOCK_EVT_MODE_ONESHOT);
+ WARN_ON(!clockevent_state_oneshot(evt));
rdmsrl(HV_X64_MSR_TIME_REF_COUNT, current_tick);
current_tick += delta;
@@ -282,31 +282,24 @@ static int hv_ce_set_next_event(unsigned long delta,
return 0;
}
-static void hv_ce_setmode(enum clock_event_mode mode,
- struct clock_event_device *evt)
+static int hv_ce_shutdown(struct clock_event_device *evt)
+{
+ wrmsrl(HV_X64_MSR_STIMER0_COUNT, 0);
+ wrmsrl(HV_X64_MSR_STIMER0_CONFIG, 0);
+
+ return 0;
+}
+
+static int hv_ce_set_oneshot(struct clock_event_device *evt)
{
union hv_timer_config timer_cfg;
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- /* unsupported */
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- 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);
- break;
-
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_SHUTDOWN:
- wrmsrl(HV_X64_MSR_STIMER0_COUNT, 0);
- wrmsrl(HV_X64_MSR_STIMER0_CONFIG, 0);
- break;
- case CLOCK_EVT_MODE_RESUME:
- break;
- }
+ 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);
+
+ return 0;
}
static void hv_init_clockevent_device(struct clock_event_device *dev, int cpu)
@@ -321,7 +314,8 @@ static void hv_init_clockevent_device(struct clock_event_device *dev, int cpu)
* references to the hv_vmbus module making it impossible to unload.
*/
- dev->set_mode = hv_ce_setmode;
+ dev->set_state_shutdown = hv_ce_shutdown;
+ dev->set_state_oneshot = hv_ce_set_oneshot;
dev->set_next_event = hv_ce_set_next_event;
}
@@ -515,8 +509,7 @@ void hv_synic_cleanup(void *arg)
/* Turn off clockevent device */
if (ms_hyperv.features & HV_X64_MSR_SYNTIMER_AVAILABLE)
- hv_ce_setmode(CLOCK_EVT_MODE_SHUTDOWN,
- hv_context.clk_evt[cpu]);
+ hv_ce_shutdown(hv_context.clk_evt[cpu]);
rdmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, shared_sint.as_uint64);
OpenPOWER on IntegriCloud