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/intel_psr.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/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index ae6a916523c2..0d548292dd09 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -129,6 +129,7 @@ void intel_psr_irq_handler(struct drm_i915_private *dev_priv, u32 psr_iir) { u32 transcoders = BIT(TRANSCODER_EDP); enum transcoder cpu_transcoder; + ktime_t time_ns = ktime_get(); if (INTEL_GEN(dev_priv) >= 8) transcoders |= BIT(TRANSCODER_A) | @@ -141,13 +142,17 @@ void intel_psr_irq_handler(struct drm_i915_private *dev_priv, u32 psr_iir) DRM_DEBUG_KMS("[transcoder %s] PSR aux error\n", transcoder_name(cpu_transcoder)); - if (psr_iir & EDP_PSR_PRE_ENTRY(cpu_transcoder)) + if (psr_iir & EDP_PSR_PRE_ENTRY(cpu_transcoder)) { + dev_priv->psr.last_entry_attempt = time_ns; DRM_DEBUG_KMS("[transcoder %s] PSR entry attempt in 2 vblanks\n", transcoder_name(cpu_transcoder)); + } - if (psr_iir & EDP_PSR_POST_EXIT(cpu_transcoder)) + if (psr_iir & EDP_PSR_POST_EXIT(cpu_transcoder)) { + dev_priv->psr.last_exit = time_ns; DRM_DEBUG_KMS("[transcoder %s] PSR exit completed\n", transcoder_name(cpu_transcoder)); + } } } |