[Intel-gfx] [PATCH 32/48] drm/i915: Restore PDEs for all VMs

[Ben Widawsky]

In following with the old restore code, we must now restore ever PPGTT's
PDEs, since they aren't proper GEM ojbects.

v2: Rebased on BDW. Only do restore pdes for gen6 & 7

Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c 
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 2c93160..ea626ba 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1035,6 +1035,7 @@ void i915_gem_restore_gtt_mappings(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct drm_i915_gem_object *obj;
+       struct i915_address_space *vm;
 
        i915_check_and_clear_faults(dev);
 
@@ -1059,8 +1060,20 @@ void i915_gem_restore_gtt_mappings(struct drm_device 
*dev)
                vma->bind_vma(vma, obj->cache_level, GLOBAL_BIND);
        }
 
-       if (dev_priv->mm.aliasing_ppgtt)
-               gen6_write_pdes(dev_priv->mm.aliasing_ppgtt);
+
+       if (INTEL_INFO(dev)->gen >= 8)
+               return;
+
+       list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
+               /* TODO: Perhaps it shouldn't be gen6 specific */
+               if (i915_is_ggtt(vm)) {
+                       if (dev_priv->mm.aliasing_ppgtt)
+                               gen6_write_pdes(dev_priv->mm.aliasing_ppgtt);
+                       continue;
+               }
+
+               gen6_write_pdes(container_of(vm, struct i915_hw_ppgtt, base));
+       }
 
        i915_gem_chipset_flush(dev);
 }
-- 
1.8.4.2

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx