From: Chris Wilson Date: Sat, 3 Sep 2016 06:53:42 +0000 (+0100) Subject: drm/i915: debugfs/i915_gem_seqno_info does not need rpm nor struct_mutex X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=02c53d99b6eb44c7a78e648d023d0485b71f661e;p=linux-beck.git drm/i915: debugfs/i915_gem_seqno_info does not need rpm nor struct_mutex i915_gem_seqno_info() supplies its own spinlocks to access the waiters, and doesn't need any GGTT or mmio access. Signed-off-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/20160903065343.25151-1-chris@chris-wilson.co.uk Reviewed-by: Matthew Auld --- diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 7be8321a32b3..3590f1fe988e 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -714,21 +714,11 @@ static void i915_ring_seqno_info(struct seq_file *m, static int i915_gem_seqno_info(struct seq_file *m, void *data) { struct drm_i915_private *dev_priv = node_to_i915(m->private); - struct drm_device *dev = &dev_priv->drm; struct intel_engine_cs *engine; - int ret; - - ret = mutex_lock_interruptible(&dev->struct_mutex); - if (ret) - return ret; - intel_runtime_pm_get(dev_priv); for_each_engine(engine, dev_priv) i915_ring_seqno_info(m, engine); - intel_runtime_pm_put(dev_priv); - mutex_unlock(&dev->struct_mutex); - return 0; }