On Wed, Jan 1, 2020 at 2:39 AM Qiang Yu yuq825@gmail.com wrote:
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.
Signed-off-by: Qiang Yu yuq825@gmail.com
LGTM in general.
Reviewed-by: Vasily Khoruzhick anarsoul@gmail.com
Erico, Andreas, could you test this patch on actual hardware? I'll have pretty limited access to the hardware for next few weeks, so I won't be able to test it myself.
drivers/gpu/drm/lima/lima_sched.c | 35 ++++++++----------------------- drivers/gpu/drm/lima/lima_sched.h | 2 -- 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,
2.17.1