From: Daniel Vetter Date: Fri, 11 Jul 2014 17:30:17 +0000 (-0700) Subject: drm/i915: Improve PSR debugfs output X-Git-Tag: v3.17-rc1~82^2~20^2~46 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=fa128fa647b81734ff83c3c5ee0d60ebf69e6ee5;p=~emulex%2Finfiniband.git drm/i915: Improve PSR debugfs output Add busy_frontbuffer_bits and locking. Reviewed-by: Rodrigo Vivi Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 62ea6198a09..fc39610fe12 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1892,10 +1892,15 @@ static int i915_edp_psr_status(struct seq_file *m, void *data) intel_runtime_pm_get(dev_priv); + mutex_lock(&dev_priv->psr.lock); seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support)); seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok)); seq_printf(m, "Enabled: %s\n", yesno((bool)dev_priv->psr.enabled)); seq_printf(m, "Active: %s\n", yesno(dev_priv->psr.active)); + seq_printf(m, "Busy frontbuffer bits: 0x%03x\n", + dev_priv->psr.busy_frontbuffer_bits); + seq_printf(m, "Re-enable work scheduled: %s\n", + yesno(work_busy(&dev_priv->psr.work.work))); enabled = HAS_PSR(dev) && I915_READ(EDP_PSR_CTL(dev)) & EDP_PSR_ENABLE; @@ -1905,6 +1910,7 @@ static int i915_edp_psr_status(struct seq_file *m, void *data) psrperf = I915_READ(EDP_PSR_PERF_CNT(dev)) & EDP_PSR_PERF_CNT_MASK; seq_printf(m, "Performance_Counter: %u\n", psrperf); + mutex_unlock(&dev_priv->psr.lock); intel_runtime_pm_put(dev_priv); return 0;