From: Paulo Zanoni Date: Fri, 13 Feb 2015 19:23:47 +0000 (-0200) Subject: drm/i915: don't reallocate the compressed FB at every frame X-Git-Tag: v4.13~5352^2~33^2~43 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=cb0a08c1ed7daa16d13876e3e1b8787d95b25b0e;p=mirror_ubuntu-bionic-kernel.git drm/i915: don't reallocate the compressed FB at every frame 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 Signed-off-by: Paulo Zanoni Reviewed-by: Jani Nikula Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c index 59401f3b902c..f1de95f7432c 100644 --- a/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -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 */