diff options
| author | Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> | 2018-04-03 14:24:20 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2018-04-20 14:28:18 -0700 |
| commit | 3f983e54fdad452582843b9fbc22df0eb67daacd (patch) | |
| tree | 3fb727af60042adfbbf7d96ffec6618729344e90 /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | 54fd3149598cc2f74cf0708d614470da2331a374 (diff) | |
drm/i915/psr: Timestamps for PSR entry and exit interrupts.
Timestamps are useful for IGT tests that trigger PSR exit and/or wait for
PSR entry.
v2: Removed seqlock (Ville)
Removed erroneous warning in irq loop (Chris)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Jose Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180403212420.25007-4-dhinakaran.pandiyan@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index a6c70ff4ae5a..2f05f5262bba 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2686,6 +2686,13 @@ static int i915_edp_psr_status(struct seq_file *m, void *data) } mutex_unlock(&dev_priv->psr.lock); + if (READ_ONCE(dev_priv->psr.debug)) { + seq_printf(m, "Last attempted entry at: %lld\n", + dev_priv->psr.last_entry_attempt); + seq_printf(m, "Last exit at: %lld\n", + dev_priv->psr.last_exit); + } + intel_runtime_pm_put(dev_priv); return 0; } |