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76aaf22016
This still uses the agp functions to actually reinstate the mappings (with a gross hack to make agp cooperate), but it wires everything up correctly for the switchover. The call to agp_rebind_memory can be dropped because all non-kms drivers do all their rebinding on EnterVT. v2: Be more paranoid and flush the chipset cache after restoring gtt mappings. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/*
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* Copyright © 2010 Daniel Vetter
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "i915_drm.h"
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#include "i915_drv.h"
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#include "i915_trace.h"
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#include "intel_drv.h"
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void i915_gem_restore_gtt_mappings(struct drm_device *dev)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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struct drm_i915_gem_object *obj_priv;
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int ret;
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list_for_each_entry(obj_priv,
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&dev_priv->mm.gtt_list,
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gtt_list) {
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/* Hack to force agp to reinsert buffer object. */
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obj_priv->agp_mem->is_bound = false;
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ret = agp_bind_memory(obj_priv->agp_mem, obj_priv->gtt_space->start / PAGE_SIZE);
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BUG_ON(ret != 0);
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}
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/* Be paranoid and flush the chipset cache. */
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intel_gtt_chipset_flush();
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}
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