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drm/i915/psr: Timestamps for PSR entry and exit interrupts.

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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
This commit is contained in:
Dhinakaran Pandiyan
2018-04-03 14:24:20 -07:00
committed by Rodrigo Vivi
parent 54fd314959
commit 3f983e54fd
3 changed files with 16 additions and 2 deletions
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2
drivers/gpu/drm/i915/i915_drv.h
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@@ -611,6 +611,8 @@ struct i915_psr {
bool psr2_enabled;
u8 sink_sync_latency;
bool debug;
ktime_t last_entry_attempt;
ktime_t last_exit;
void (*enable_source)(struct intel_dp *,
const struct intel_crtc_state *);