drm/i915: Reserve shadow batch VMA analogue to others
If not pinned VMA can become an eviction target just before it needs to be
executed which breaks the internal object lifetime rules.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87399
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 8330660..6c21c59 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1084,6 +1084,7 @@
{
struct drm_i915_private *dev_priv = to_i915(batch_obj->base.dev);
struct drm_i915_gem_object *shadow_batch_obj;
+ bool need_reloc = false;
int ret;
shadow_batch_obj = i915_gem_batch_pool_get(&dev_priv->mm.batch_pool,
@@ -1109,6 +1110,7 @@
vma->exec_entry = shadow_exec_entry;
vma->exec_entry->flags = __EXEC_OBJECT_PURGEABLE;
drm_gem_object_reference(&shadow_batch_obj->base);
+ i915_gem_execbuffer_reserve_vma(vma, ring, &need_reloc);
list_add_tail(&vma->exec_list, &eb->vmas);
shadow_batch_obj->base.pending_read_domains =