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gpu: nvgpu: CPU timestamps for alarms

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Use sched_clock() for alarm timestamps to return
number of nanoseconds since the system was started.

Jira DNVGPU-186

Change-Id: Ie16fe5442ea8a5213bf5401a3faedcce387b3d93
Reviewed-on: http://git-master/r/1259026
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
(cherry picked from commit 383601c4d006734e13f0bfa386381573c87209da)
Reviewed-on: http://git-master/r/1280888
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Thomas Fleury
2016-11-23 10:18:19 -08:00
committed by mobile promotions
parent 177c874ff2
commit 48ce94f940
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/nvgpu/clk/clk_arb.c
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@@ -1294,7 +1294,7 @@ static void nvgpu_clk_arb_queue_notification(struct gk20a *g,
queue_index = (atomic_inc_return(&queue->tail)) % queue->size;
/* get current timestamp */
timestamp = (u64) get_cycles();
timestamp = (u64) sched_clock();
queue->notifications[queue_index].timestamp = timestamp;
queue->notifications[queue_index].notification = alarm_mask;