From: Chris Wilson Date: Thu, 18 Aug 2016 16:16:57 +0000 (+0100) Subject: drm/i915: Allocate rings from stolen X-Git-Tag: v4.9-rc1~41^2~36^2~31 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c58b735fc762e891481e92af7124b85cb0a51fce;p=linux.git drm/i915: Allocate rings from stolen If we have stolen available, make use of it for ringbuffer allocation. Previously this was restricted to !llc platforms, as writing to stolen requires a GGTT mapping - but now that we have partial mappable support, the mappable aperture isn't quite so precious so we can use it more freely and ringbuffers are a good user for the otherwise wasted stolen. Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-18-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 21bfc69e9dc6..cc5bcd14b6df 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1952,10 +1952,8 @@ intel_ring_create_vma(struct drm_i915_private *dev_priv, int size) struct drm_i915_gem_object *obj; struct i915_vma *vma; - obj = ERR_PTR(-ENODEV); - if (!HAS_LLC(dev_priv)) - obj = i915_gem_object_create_stolen(&dev_priv->drm, size); - if (IS_ERR(obj)) + obj = i915_gem_object_create_stolen(&dev_priv->drm, size); + if (!obj) obj = i915_gem_object_create(&dev_priv->drm, size); if (IS_ERR(obj)) return ERR_CAST(obj);