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drm/i915/fbc: Don't clear busy_bits for origin==GTT

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The hardware host tracking won't nuke the entire cfb (unless the
entire fb is written through the gtt) so don't clear the busy_bits
for gtt tracking.

Not that it really matters anymore since we've lost ORIGIN_GTT usage
everywhere.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200429101034.8208-7-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
This commit is contained in:
Ville Syrjälä 2020-04-29 13:10:28 +03:00
parent 5331889b5f
commit d838962f16
1 changed files with 9 additions and 1 deletions
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10
drivers/gpu/drm/i915/display/intel_fbc.c
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@ -1078,11 +1078,19 @@ void intel_fbc_flush(struct drm_i915_private *dev_priv,
if (!HAS_FBC(dev_priv))
return;
/*
* GTT tracking does not nuke the entire cfb
* so don't clear busy_bits set for some other
* reason.
*/
if (origin == ORIGIN_GTT)
return;
mutex_lock(&fbc->lock);
fbc->busy_bits &= ~frontbuffer_bits;
if (origin == ORIGIN_GTT || origin == ORIGIN_FLIP)
if (origin == ORIGIN_FLIP)
goto out;
if (!fbc->busy_bits && fbc->crtc &&