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drm/i915: don't reallocate the compressed FB at every frame

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With the current code we just reallocate the compressed FB at every
FBC update: we have X in one frame, then in the other frame we need X
again, but we check "needed < have" instead of "needed <= have".

v2: Rebase after Jani addressed the other problems described in v1.

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2015-02-13 17:23:47 -02:00 • committed by Daniel Vetter
commit cb0a08c1ed
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_gem_stolen.c
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@ -253,7 +253,7 @@ int i915_gem_stolen_setup_compression(struct drm_device *dev, int size, int fb_c
if (!drm_mm_initialized(&dev_priv->mm.stolen))
return -ENODEV;
if (size < dev_priv->fbc.uncompressed_size)
if (size <= dev_priv->fbc.uncompressed_size)
return 0;
/* Release any current block */