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From 6d1d2a46987c71af7ba7d9bfcd280a1bb10bfd6e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Fri, 12 Oct 2018 16:47:13 +0200
Subject: [PATCH 0756/2940] drm/sched: add drm_sched_fault
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Add a helper to immediately start timeout handling in case of a hardware
fault.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/scheduler/sched_main.c | 13 +++++++++++++
include/drm/gpu_scheduler.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index b7e4572f811f..2e416c3fd206 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -182,6 +182,19 @@ bool drm_sched_dependency_optimized(struct dma_fence* fence,
}
EXPORT_SYMBOL(drm_sched_dependency_optimized);
+/**
+ * drm_sched_fault - immediately start timeout handler
+ *
+ * @sched: scheduler where the timeout handling should be started.
+ *
+ * Start timeout handling immediately when the driver detects a hardware fault.
+ */
+void drm_sched_fault(struct drm_gpu_scheduler *sched)
+{
+ mod_delayed_work(system_wq, &sched->work_tdr, 0);
+}
+EXPORT_SYMBOL(drm_sched_fault);
+
/* job_finish is called after hw fence signaled
*/
static void drm_sched_job_finish(struct work_struct *work)
diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
index 872ab2ea51a1..b0646520b971 100644
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -299,6 +299,7 @@ void drm_sched_hw_job_reset(struct drm_gpu_scheduler *sched,
void drm_sched_job_recovery(struct drm_gpu_scheduler *sched);
bool drm_sched_dependency_optimized(struct dma_fence* fence,
struct drm_sched_entity *entity);
+void drm_sched_fault(struct drm_gpu_scheduler *sched);
void drm_sched_job_kickout(struct drm_sched_job *s_job);
void drm_sched_rq_add_entity(struct drm_sched_rq *rq,
--
2.17.1
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