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authorQiang Yu <yuq825@gmail.com>2020-01-01 18:38:31 +0800
committerQiang Yu <yuq825@gmail.com>2020-01-09 09:27:38 +0800
commit5c544dafc0722daa41b57cbd7c245186645474d5 (patch)
treefbf963760d9bccaf32d2ad329d17670a209da8b6
parentda458286a5e288ad18500f89ae28cbbc7512b3e1 (diff)
drm/lima: use drm_sched_fault for error task handling
drm_sched_job_timedout works with drm_sched_stop as a pair, so we'd better use the drm_sched_fault helper to make the error and timeout handling go the same path. This also fixes application hang when task error. Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com> Tested-by: Andreas Baierl <ichgeh@imkreisrum.de> Signed-off-by: Qiang Yu <yuq825@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200101103831.22429-1-yuq825@gmail.com
-rw-r--r--drivers/gpu/drm/lima/lima_sched.c35
-rw-r--r--drivers/gpu/drm/lima/lima_sched.h2
2 files changed, 9 insertions, 28 deletions
diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c
index f522c5f99729..a31a90c380b6 100644
--- a/drivers/gpu/drm/lima/lima_sched.c
+++ b/drivers/gpu/drm/lima/lima_sched.c
@@ -255,13 +255,17 @@ static struct dma_fence *lima_sched_run_job(struct drm_sched_job *job)
return task->fence;
}
-static void lima_sched_handle_error_task(struct lima_sched_pipe *pipe,
- struct lima_sched_task *task)
+static void lima_sched_timedout_job(struct drm_sched_job *job)
{
+ struct lima_sched_pipe *pipe = to_lima_pipe(job->sched);
+ struct lima_sched_task *task = to_lima_task(job);
+
+ if (!pipe->error)
+ DRM_ERROR("lima job timeout\n");
+
drm_sched_stop(&pipe->base, &task->base);
- if (task)
- drm_sched_increase_karma(&task->base);
+ drm_sched_increase_karma(&task->base);
pipe->task_error(pipe);
@@ -284,16 +288,6 @@ static void lima_sched_handle_error_task(struct lima_sched_pipe *pipe,
drm_sched_start(&pipe->base, true);
}
-static void lima_sched_timedout_job(struct drm_sched_job *job)
-{
- struct lima_sched_pipe *pipe = to_lima_pipe(job->sched);
- struct lima_sched_task *task = to_lima_task(job);
-
- DRM_ERROR("lima job timeout\n");
-
- lima_sched_handle_error_task(pipe, task);
-}
-
static void lima_sched_free_job(struct drm_sched_job *job)
{
struct lima_sched_task *task = to_lima_task(job);
@@ -318,15 +312,6 @@ static const struct drm_sched_backend_ops lima_sched_ops = {
.free_job = lima_sched_free_job,
};
-static void lima_sched_error_work(struct work_struct *work)
-{
- struct lima_sched_pipe *pipe =
- container_of(work, struct lima_sched_pipe, error_work);
- struct lima_sched_task *task = pipe->current_task;
-
- lima_sched_handle_error_task(pipe, task);
-}
-
int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name)
{
unsigned int timeout = lima_sched_timeout_ms > 0 ?
@@ -335,8 +320,6 @@ int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name)
pipe->fence_context = dma_fence_context_alloc(1);
spin_lock_init(&pipe->fence_lock);
- INIT_WORK(&pipe->error_work, lima_sched_error_work);
-
return drm_sched_init(&pipe->base, &lima_sched_ops, 1, 0,
msecs_to_jiffies(timeout), name);
}
@@ -349,7 +332,7 @@ void lima_sched_pipe_fini(struct lima_sched_pipe *pipe)
void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe)
{
if (pipe->error)
- schedule_work(&pipe->error_work);
+ drm_sched_fault(&pipe->base);
else {
struct lima_sched_task *task = pipe->current_task;
diff --git a/drivers/gpu/drm/lima/lima_sched.h b/drivers/gpu/drm/lima/lima_sched.h
index 928af91c1118..1d814fecbcc0 100644
--- a/drivers/gpu/drm/lima/lima_sched.h
+++ b/drivers/gpu/drm/lima/lima_sched.h
@@ -68,8 +68,6 @@ struct lima_sched_pipe {
void (*task_fini)(struct lima_sched_pipe *pipe);
void (*task_error)(struct lima_sched_pipe *pipe);
void (*task_mmu_error)(struct lima_sched_pipe *pipe);
-
- struct work_struct error_work;
};
int lima_sched_task_init(struct lima_sched_task *task,