In function find_compression_threshold() we try to over-allocate CFB space in order to reduce reallocations and fragmentation, and we're not considering that at the CFB size check. Consider it. There is also a longer-term plan to kill dev_priv->fbc.uncompressed_size, but this will come later. v2: Use drm_mm_node_allocated() (Chris). Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_fbc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index 11fc528..9eb94c0 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -720,7 +720,8 @@ static int intel_fbc_setup_cfb(struct intel_crtc *crtc) size = intel_fbc_calculate_cfb_size(crtc); cpp = drm_format_plane_cpp(fb->pixel_format, 0); - if (size <= dev_priv->fbc.uncompressed_size) + if (drm_mm_node_allocated(&dev_priv->fbc.compressed_fb) && + size <= dev_priv->fbc.compressed_fb.size * dev_priv->fbc.threshold) return 0; /* Release any current block */ -- 2.6.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
