diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 14c855b1a3a4..c29b1a1cbe96 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3417,25 +3417,22 @@ i915_gem_idle_work_handler(struct work_struct *work) container_of(work, typeof(*dev_priv), gt.idle_work.work); unsigned int epoch = I915_EPOCH_INVALID; bool rearm_hangcheck; - ktime_t end; if (!READ_ONCE(dev_priv->gt.awake)) return; /* * Wait for last execlists context complete, but bail out in case a - * new request is submitted. + * new request is submitted. As we don't trust the hardware, we + * continue on if the wait times out. This is necessary to allow + * the machine to suspend even if the hardware dies, and we will + * try to recover in resume (after depriving the hardware of power, + * it may be in a better mmod). */ - end = ktime_add_ms(ktime_get(), I915_IDLE_ENGINES_TIMEOUT); - do { - if (new_requests_since_last_retire(dev_priv)) - return; - - if (intel_engines_are_idle(dev_priv)) - break; - - usleep_range(100, 500); - } while (ktime_before(ktime_get(), end)); + __wait_for(if (new_requests_since_last_retire(dev_priv)) return, + intel_engines_are_idle(dev_priv), + I915_IDLE_ENGINES_TIMEOUT * 1000, + 10, 500); rearm_hangcheck = cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work); |