1 files changed, 18 insertions, 11 deletions

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 105b5b48e828..8b0b0ac74a6f 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -277,7 +277,6 @@ static int msm_drm_uninit(struct device *dev)
 
 struct msm_gem_address_space *msm_kms_init_aspace(struct drm_device *dev)
 {
-	struct iommu_domain *domain;
 	struct msm_gem_address_space *aspace;
 	struct msm_mmu *mmu;
 	struct device *mdp_dev = dev->dev;
@@ -293,22 +292,21 @@ struct msm_gem_address_space *msm_kms_init_aspace(struct drm_device *dev)
 	else
 		iommu_dev = mdss_dev;
 
-	domain = iommu_domain_alloc(iommu_dev->bus);
-	if (!domain) {
+	mmu = msm_iommu_new(iommu_dev, 0);
+	if (IS_ERR(mmu))
+		return ERR_CAST(mmu);
+
+	if (!mmu) {
 		drm_info(dev, "no IOMMU, fallback to phys contig buffers for scanout\n");
 		return NULL;
 	}
 
-	mmu = msm_iommu_new(iommu_dev, domain);
-	if (IS_ERR(mmu)) {
-		iommu_domain_free(domain);
-		return ERR_CAST(mmu);
-	}
-
 	aspace = msm_gem_address_space_create(mmu, "mdp_kms",
 		0x1000, 0x100000000 - 0x1000);
-	if (IS_ERR(aspace))
+	if (IS_ERR(aspace)) {
+		dev_err(mdp_dev, "aspace create, error %pe\n", aspace);
 		mmu->funcs->destroy(mmu);
+	}
 
 	return aspace;
 }
@@ -420,7 +418,6 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 	priv->dev = ddev;
 
 	priv->wq = alloc_ordered_workqueue("msm", 0);
-	priv->hangcheck_period = DRM_MSM_HANGCHECK_DEFAULT_PERIOD;
 
 	INIT_LIST_HEAD(&priv->objects);
 	mutex_init(&priv->obj_lock);
@@ -819,6 +816,7 @@ static int msm_ioctl_gem_info(struct drm_device *dev, void *data,
 	case MSM_INFO_GET_OFFSET:
 	case MSM_INFO_GET_IOVA:
 	case MSM_INFO_SET_IOVA:
+	case MSM_INFO_GET_FLAGS:
 		/* value returned as immediate, not pointer, so len==0: */
 		if (args->len)
 			return -EINVAL;
@@ -846,6 +844,15 @@ static int msm_ioctl_gem_info(struct drm_device *dev, void *data,
 	case MSM_INFO_SET_IOVA:
 		ret = msm_ioctl_gem_info_set_iova(dev, file, obj, args->value);
 		break;
+	case MSM_INFO_GET_FLAGS:
+		if (obj->import_attach) {
+			ret = -EINVAL;
+			break;
+		}
+		/* Hide internal kernel-only flags: */
+		args->value = to_msm_bo(obj)->flags & MSM_BO_FLAGS;
+		ret = 0;
+		break;
 	case MSM_INFO_SET_NAME:
 		/* length check should leave room for terminating null: */
 		if (args->len >= sizeof(msm_obj->name)) {