2.6.28-stable review patch. If anyone has any objections, please let us know. ------------------ From: Eric Anholt commit 9bb2d6f94aeb9a185d69aedbd19421b6da4e3309 upstream. This avoids a BUG_ON in the enter_vt path due to objects being in the GTT when we shouldn't have ever let them be (as we're not supposed to touch the device during that time). This was triggered by a change in the 2D driver to use the GTT mapping of objects after pinning them to improve software fallback performance. Signed-off-by: Eric Anholt Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/i915_gem.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1161,6 +1161,8 @@ i915_gem_object_bind_to_gtt(struct drm_g struct drm_mm_node *free_space; int page_count, ret; + if (dev_priv->mm.suspended) + return -EBUSY; if (alignment == 0) alignment = PAGE_SIZE; if (alignment & (PAGE_SIZE - 1)) { @@ -2180,7 +2182,7 @@ i915_gem_object_pin(struct drm_gem_objec if (obj_priv->gtt_space == NULL) { ret = i915_gem_object_bind_to_gtt(obj, alignment); if (ret != 0) { - if (ret != -ERESTARTSYS) + if (ret != -EBUSY && ret != -ERESTARTSYS) DRM_ERROR("Failure to bind: %d", ret); return ret; } @@ -2703,20 +2705,21 @@ i915_gem_entervt_ioctl(struct drm_device dev_priv->mm.wedged = 0; } - ret = i915_gem_init_ringbuffer(dev); - if (ret != 0) - return ret; - dev_priv->mm.gtt_mapping = io_mapping_create_wc(dev->agp->base, dev->agp->agp_info.aper_size * 1024 * 1024); mutex_lock(&dev->struct_mutex); + dev_priv->mm.suspended = 0; + + ret = i915_gem_init_ringbuffer(dev); + if (ret != 0) + return ret; + BUG_ON(!list_empty(&dev_priv->mm.active_list)); BUG_ON(!list_empty(&dev_priv->mm.flushing_list)); BUG_ON(!list_empty(&dev_priv->mm.inactive_list)); BUG_ON(!list_empty(&dev_priv->mm.request_list)); - dev_priv->mm.suspended = 0; mutex_unlock(&dev->struct_mutex); drm_irq_install(dev); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/