From 3089c6f239d7d2c4cb2dd5c353e8984cf79af1d7 Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Wed, 31 Jul 2013 17:00:03 -0700 Subject: [PATCH] drm/i915: make caching operate on all address spaces For now, objects will maintain the same cache levels amongst all address spaces. This is to limit the risk of bugs, as playing with cacheability in the different domains can be very error prone. In the future, it may be optimal to allow setting domains per VMA (ie. an object bound into an address space). Signed-off-by: Ben Widawsky Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 8322dbe3ff16..56c300f8f9b1 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3319,7 +3319,7 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, { struct drm_device *dev = obj->base.dev; drm_i915_private_t *dev_priv = dev->dev_private; - struct i915_vma *vma = i915_gem_obj_to_vma(obj, &dev_priv->gtt.base); + struct i915_vma *vma; int ret; if (obj->cache_level == cache_level) @@ -3330,13 +3330,17 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, return -EBUSY; } - if (vma && !i915_gem_valid_gtt_space(dev, &vma->node, cache_level)) { - ret = i915_gem_object_unbind(obj); - if (ret) - return ret; + list_for_each_entry(vma, &obj->vma_list, vma_link) { + if (!i915_gem_valid_gtt_space(dev, &vma->node, cache_level)) { + ret = i915_gem_object_unbind(obj); + if (ret) + return ret; + + break; + } } - if (i915_gem_obj_ggtt_bound(obj)) { + if (i915_gem_obj_bound_any(obj)) { ret = i915_gem_object_finish_gpu(obj); if (ret) return ret; @@ -3358,8 +3362,6 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, if (obj->has_aliasing_ppgtt_mapping) i915_ppgtt_bind_object(dev_priv->mm.aliasing_ppgtt, obj, cache_level); - - i915_gem_obj_to_vma(obj, &dev_priv->gtt.base)->node.color = cache_level; } if (cache_level == I915_CACHE_NONE) { @@ -3385,6 +3387,8 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, old_write_domain); } + list_for_each_entry(vma, &obj->vma_list, vma_link) + vma->node.color = cache_level; obj->cache_level = cache_level; i915_gem_verify_gtt(dev); return 0; -- 2.30.2