diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index 281c6eca20a85524cc34b615f5bc5d0567b4d7ba..df9bcbab922f359bd1837f5b3a5fde457e827457 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -129,10 +129,9 @@ void etnaviv_gem_put_pages(struct etnaviv_gem_object *etnaviv_obj)
 	/* when we start tracking the pin count, then do something here */
 }
 
-static int etnaviv_gem_mmap_obj(struct drm_gem_object *obj,
+static int etnaviv_gem_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
 		struct vm_area_struct *vma)
 {
-	struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
 	pgprot_t vm_page_prot;
 
 	vma->vm_flags &= ~VM_PFNMAP;
@@ -151,9 +150,9 @@ static int etnaviv_gem_mmap_obj(struct drm_gem_object *obj,
 		 * in particular in the case of mmap'd dmabufs)
 		 */
 		fput(vma->vm_file);
-		get_file(obj->filp);
+		get_file(etnaviv_obj->base.filp);
 		vma->vm_pgoff = 0;
-		vma->vm_file  = obj->filp;
+		vma->vm_file  = etnaviv_obj->base.filp;
 
 		vma->vm_page_prot = vm_page_prot;
 	}
@@ -173,7 +172,7 @@ int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 	}
 
 	obj = to_etnaviv_bo(vma->vm_private_data);
-	return etnaviv_gem_mmap_obj(vma->vm_private_data, vma);
+	return obj->ops->mmap(obj, vma);
 }
 
 int etnaviv_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
@@ -545,6 +544,7 @@ static const struct etnaviv_gem_ops etnaviv_gem_shmem_ops = {
 	.get_pages = etnaviv_gem_shmem_get_pages,
 	.release = etnaviv_gem_shmem_release,
 	.vmap = etnaviv_gem_vmap_impl,
+	.mmap = etnaviv_gem_mmap_obj,
 };
 
 void etnaviv_gem_free_object(struct drm_gem_object *obj)
@@ -886,10 +886,17 @@ static void etnaviv_gem_userptr_release(struct etnaviv_gem_object *etnaviv_obj)
 	put_task_struct(etnaviv_obj->userptr.task);
 }
 
+static int etnaviv_gem_userptr_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
+		struct vm_area_struct *vma)
+{
+	return -EINVAL;
+}
+
 static const struct etnaviv_gem_ops etnaviv_gem_userptr_ops = {
 	.get_pages = etnaviv_gem_userptr_get_pages,
 	.release = etnaviv_gem_userptr_release,
 	.vmap = etnaviv_gem_vmap_impl,
+	.mmap = etnaviv_gem_userptr_mmap_obj,
 };
 
 int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.h b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
index 02665d8c10eea6a032c1aa4e38bd3e3e71334ccb..e63ff116a3b3df15e15897068d37e0f366803978 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
@@ -79,6 +79,7 @@ struct etnaviv_gem_ops {
 	int (*get_pages)(struct etnaviv_gem_object *);
 	void (*release)(struct etnaviv_gem_object *);
 	void *(*vmap)(struct etnaviv_gem_object *);
+	int (*mmap)(struct etnaviv_gem_object *, struct vm_area_struct *);
 };
 
 static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
index 4e67395f5fa1c1572aa7051a86538aa16389f807..b93618c1aa69e6c77609d1bc0ce18f308cab7b3f 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
@@ -84,10 +84,17 @@ static void *etnaviv_gem_prime_vmap_impl(struct etnaviv_gem_object *etnaviv_obj)
 	return dma_buf_vmap(etnaviv_obj->base.import_attach->dmabuf);
 }
 
+static int etnaviv_gem_prime_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
+		struct vm_area_struct *vma)
+{
+	return dma_buf_mmap(etnaviv_obj->base.dma_buf, vma, 0);
+}
+
 static const struct etnaviv_gem_ops etnaviv_gem_prime_ops = {
 	/* .get_pages should never be called */
 	.release = etnaviv_gem_prime_release,
 	.vmap = etnaviv_gem_prime_vmap_impl,
+	.mmap = etnaviv_gem_prime_mmap_obj,
 };
 
 struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 306dde18a94a01c8cc623a96bd7743c441087309..049d00d8ded50a374d8aff20e03e133a1fb89b96 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1528,8 +1528,8 @@ static int etnaviv_gpu_bind(struct device *dev, struct device *master,
 	INIT_WORK(&gpu->recover_work, recover_worker);
 	init_waitqueue_head(&gpu->fence_event);
 
-	setup_timer(&gpu->hangcheck_timer, hangcheck_handler,
-			(unsigned long)gpu);
+	setup_deferrable_timer(&gpu->hangcheck_timer, hangcheck_handler,
+			       (unsigned long)gpu);
 
 	priv->gpu[priv->num_gpus++] = gpu;
 
diff --git a/include/linux/timer.h b/include/linux/timer.h
index 61aa61dc410cf5035beb63c2873a471be4c50372..20ac746f3eb305905376e9743b90a2f78cf76b57 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -145,6 +145,8 @@ static inline void init_timer_on_stack_key(struct timer_list *timer,
 
 #define setup_timer(timer, fn, data)					\
 	__setup_timer((timer), (fn), (data), 0)
+#define setup_deferrable_timer(timer, fn, data)				\
+	__setup_timer((timer), (fn), (data), TIMER_DEFERRABLE)
 #define setup_timer_on_stack(timer, fn, data)				\
 	__setup_timer_on_stack((timer), (fn), (data), 0)
 #define setup_deferrable_timer_on_stack(timer, fn, data)		\