3 files changed, 24 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 8eb76becd676..d29281231507 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -2291,6 +2291,28 @@ void intel_gvt_clean_gtt(struct intel_gvt *gvt)
 }
 
 /**
+ * intel_vgpu_invalidate_ppgtt - invalidate PPGTT instances
+ * @vgpu: a vGPU
+ *
+ * This function is called when invalidate all PPGTT instances of a vGPU.
+ *
+ */
+void intel_vgpu_invalidate_ppgtt(struct intel_vgpu *vgpu)
+{
+        struct list_head *pos, *n;
+        struct intel_vgpu_mm *mm;
+
+        list_for_each_safe(pos, n, &vgpu->gtt.ppgtt_mm_list_head) {
+                mm = container_of(pos, struct intel_vgpu_mm, ppgtt_mm.list);
+                if (mm->type == INTEL_GVT_MM_PPGTT) {
+                        list_del_init(&mm->ppgtt_mm.lru_list);
+                        if (mm->ppgtt_mm.shadowed)
+                                invalidate_ppgtt_mm(mm);
+                }
+        }
+}
+
+/**
  * intel_vgpu_reset_ggtt - reset the GGTT entry
  * @vgpu: a vGPU
  *
diff --git a/drivers/gpu/drm/i915/gvt/gtt.h b/drivers/gpu/drm/i915/gvt/gtt.h
index e831507e17c3..a8b369cd352b 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.h
+++ b/drivers/gpu/drm/i915/gvt/gtt.h
@@ -194,6 +194,7 @@ struct intel_vgpu_gtt {
 extern int intel_vgpu_init_gtt(struct intel_vgpu *vgpu);
 extern void intel_vgpu_clean_gtt(struct intel_vgpu *vgpu);
 void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu);
+void intel_vgpu_invalidate_ppgtt(struct intel_vgpu *vgpu);
 
 extern int intel_gvt_init_gtt(struct intel_gvt *gvt);
 void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu);
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 41f76e86aa1f..2e0a02a80fe4 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -522,6 +522,7 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
         /* full GPU reset or device model level reset */
         if (engine_mask == ALL_ENGINES || dmlr) {
                 intel_vgpu_select_submission_ops(vgpu, ALL_ENGINES, 0);
+                intel_vgpu_invalidate_ppgtt(vgpu);
                 /*fence will not be reset during virtual reset */
                 if (dmlr) {
                         intel_vgpu_reset_gtt(vgpu);