Commit 96b47b65 authored by Daniel Vetter's avatar Daniel Vetter Committed by Eric Anholt

drm/i915: fix order of fence release wrt flushing

i915_gem_object_unbind had the ordering wrong. The other user,
i915_gem_object_put_fence_reg already has the correct ordering.

Results was usually corrupted pixmaps, especially garbled font glyphs
after a suspend/resume (because this evicts everything).

I'm still waiting for the feedback from the bug-reporters, but
because this obviously fixes a bug (at least for me) I'm already
submitting it.

Bugzilla: http://bugs.freedesktop.org/show_bug.cgi?id=25406Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
CC: stable@kernel.org
parent 656cb793
...@@ -2021,9 +2021,6 @@ i915_gem_object_unbind(struct drm_gem_object *obj) ...@@ -2021,9 +2021,6 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
/* blow away mappings if mapped through GTT */ /* blow away mappings if mapped through GTT */
i915_gem_release_mmap(obj); i915_gem_release_mmap(obj);
if (obj_priv->fence_reg != I915_FENCE_REG_NONE)
i915_gem_clear_fence_reg(obj);
/* Move the object to the CPU domain to ensure that /* Move the object to the CPU domain to ensure that
* any possible CPU writes while it's not in the GTT * any possible CPU writes while it's not in the GTT
* are flushed when we go to remap it. This will * are flushed when we go to remap it. This will
...@@ -2039,6 +2036,10 @@ i915_gem_object_unbind(struct drm_gem_object *obj) ...@@ -2039,6 +2036,10 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
BUG_ON(obj_priv->active); BUG_ON(obj_priv->active);
/* release the fence reg _after_ flushing */
if (obj_priv->fence_reg != I915_FENCE_REG_NONE)
i915_gem_clear_fence_reg(obj);
if (obj_priv->agp_mem != NULL) { if (obj_priv->agp_mem != NULL) {
drm_unbind_agp(obj_priv->agp_mem); drm_unbind_agp(obj_priv->agp_mem);
drm_free_agp(obj_priv->agp_mem, obj->size / PAGE_SIZE); drm_free_agp(obj_priv->agp_mem, obj->size / PAGE_SIZE);
......
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