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            <b><a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED - [BYT Regression]igt/gem_concurrent_blit/gtt-gpu-read-after-write-forked causes *ERROR* timed out waiting for Punit"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75244#c30">Comment # 30</a>
              on <a class="bz_bug_link 
          bz_status_REOPENED "
   title="REOPENED - [BYT Regression]igt/gem_concurrent_blit/gtt-gpu-read-after-write-forked causes *ERROR* timed out waiting for Punit"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75244">bug 75244</a>
              from <span class="vcard"><a class="email" href="mailto:deepak.s@intel.com" title="Deepak S <deepak.s@intel.com>"> <span class="fn">Deepak S</span></a>
</span></b>
        <pre>Did we try disabling the wait for punit? can you try below patch

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index f7c9938..c40296e 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3841,7 +3841,7 @@ static void vlv_set_rps_idle(struct drm_i915_private
*dev_priv)
        struct drm_device *dev = dev_priv->dev;

        /* CHV and latest VLV don't need to force the gfx clock */
-       if (IS_CHERRYVIEW(dev) || dev->pdev->revision >= 0xd) {
+       if (IS_CHERRYVIEW(dev) || IS_VALLEYVIEW(dev)) {
                valleyview_set_rps(dev_priv->dev,
dev_priv->rps.min_freq_softlimit);
                return;
        }</pre>
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