round_jiffies_up(jiffies + msecs_to_jiffies(priv->hangcheck_period)));
}
+static bool made_progress(struct msm_gpu *gpu, struct msm_ringbuffer *ring)
+{
+ if (ring->hangcheck_progress_retries >= DRM_MSM_HANGCHECK_PROGRESS_RETRIES)
+ return false;
+
+ if (!gpu->funcs->progress)
+ return false;
+
+ if (!gpu->funcs->progress(gpu, ring))
+ return false;
+
+ ring->hangcheck_progress_retries++;
+ return true;
+}
+
static void hangcheck_handler(struct timer_list *t)
{
struct msm_gpu *gpu = from_timer(gpu, t, hangcheck_timer);
if (fence != ring->hangcheck_fence) {
/* some progress has been made.. ya! */
ring->hangcheck_fence = fence;
- } else if (fence_before(fence, ring->fctx->last_fence)) {
+ ring->hangcheck_progress_retries = 0;
+ } else if (fence_before(fence, ring->fctx->last_fence) &&
+ !made_progress(gpu, ring)) {
/* no progress and not done.. hung! */
ring->hangcheck_fence = fence;
+ ring->hangcheck_progress_retries = 0;
DRM_DEV_ERROR(dev->dev, "%s: hangcheck detected gpu lockup rb %d!\n",
gpu->name, ring->id);
DRM_DEV_ERROR(dev->dev, "%s: completed fence: %u\n",
struct msm_gpu *gpu, const struct msm_gpu_funcs *funcs,
const char *name, struct msm_gpu_config *config)
{
+ struct msm_drm_private *priv = drm->dev_private;
int i, ret, nr_rings = config->nr_rings;
void *memptrs;
uint64_t memptrs_iova;
kthread_init_work(&gpu->recover_work, recover_worker);
kthread_init_work(&gpu->fault_work, fault_worker);
+ priv->hangcheck_period = DRM_MSM_HANGCHECK_DEFAULT_PERIOD;
+
+ /*
+ * If progress detection is supported, halve the hangcheck timer
+ * duration, as it takes two iterations of the hangcheck handler
+ * to detect a hang.
+ */
+ if (funcs->progress)
+ priv->hangcheck_period /= 2;
+
timer_setup(&gpu->hangcheck_timer, hangcheck_handler, 0);
spin_lock_init(&gpu->perf_lock);