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From 88079006dc412c5d1676f9f6e9c4d72a209eb556 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Mon, 24 Aug 2015 14:29:40 +0200
Subject: [PATCH 0504/1050] drm/amdgpu: wake up scheduler only when neccessary
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
---
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 ca22d90..4145365 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -27,6 +27,8 @@
#include <drm/drmP.h>
#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;
}
@@ -250,6 +252,15 @@ static bool amd_sched_ready(struct amd_gpu_scheduler *sched)
}
/**
+ * 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
*/
static struct amd_sched_entity *
--
1.9.1
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