From 88079006dc412c5d1676f9f6e9c4d72a209eb556 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Mon, 24 Aug 2015 14:29:40 +0200 Subject: [PATCH] drm/amdgpu: wake up scheduler only when neccessary MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Christian König Acked-by: Alex Deucher Reviewed-by: Jammy Zhou Reviewed-by: Chunming Zhou --- drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c index ca22d9032477..414536557673 100644 --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c @@ -27,6 +27,8 @@ #include #include "gpu_scheduler.h" +static void amd_sched_wakeup(struct amd_gpu_scheduler *sched); + /* Initialize a given run queue struct */ static void amd_sched_rq_init(struct amd_sched_rq *rq) { @@ -209,7 +211,7 @@ static bool amd_sched_entity_in(struct amd_sched_job *job) /* first job wakes up scheduler */ if (first) - wake_up_interruptible(&job->sched->wait_queue); + amd_sched_wakeup(job->sched); return added; } @@ -249,6 +251,15 @@ static bool amd_sched_ready(struct amd_gpu_scheduler *sched) sched->hw_submission_limit; } +/** + * Wake up the scheduler when it is ready + */ +static void amd_sched_wakeup(struct amd_gpu_scheduler *sched) +{ + if (amd_sched_ready(sched)) + wake_up_interruptible(&sched->wait_queue); +} + /** * Select next entity containing real IB submissions */ -- 2.20.1