1 files changed, 29 insertions, 29 deletions

diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 038b6d313447..e34a7b7f848a 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -45,6 +45,22 @@ struct drm_gem_shmem_object {
 	unsigned int pages_use_count;
 
 	/**
+	 * @madv: State for madvise
+	 *
+	 * 0 is active/inuse.
+	 * A negative value is the object is purged.
+	 * Positive values are driver specific and not used by the helpers.
+	 */
+	int madv;
+
+	/**
+	 * @madv_list: List entry for madvise tracking
+	 *
+	 * Typically used by drivers to track purgeable objects
+	 */
+	struct list_head madv_list;
+
+	/**
 	 * @pages_mark_dirty_on_put:
 	 *
 	 * Mark pages as dirty when they are put.
@@ -85,32 +101,6 @@ struct drm_gem_shmem_object {
 #define to_drm_gem_shmem_obj(obj) \
 	container_of(obj, struct drm_gem_shmem_object, base)
 
-/**
- * DEFINE_DRM_GEM_SHMEM_FOPS() - Macro to generate file operations for shmem drivers
- * @name: name for the generated structure
- *
- * This macro autogenerates a suitable &struct file_operations for shmem based
- * drivers, which can be assigned to &drm_driver.fops. Note that this structure
- * cannot be shared between drivers, because it contains a reference to the
- * current module using THIS_MODULE.
- *
- * Note that the declaration is already marked as static - if you need a
- * non-static version of this you're probably doing it wrong and will break the
- * THIS_MODULE reference by accident.
- */
-#define DEFINE_DRM_GEM_SHMEM_FOPS(name) \
-	static const struct file_operations name = {\
-		.owner		= THIS_MODULE,\
-		.open		= drm_open,\
-		.release	= drm_release,\
-		.unlocked_ioctl	= drm_ioctl,\
-		.compat_ioctl	= drm_compat_ioctl,\
-		.poll		= drm_poll,\
-		.read		= drm_read,\
-		.llseek		= noop_llseek,\
-		.mmap		= drm_gem_shmem_mmap, \
-	}
-
 struct drm_gem_shmem_object *drm_gem_shmem_create(struct drm_device *dev, size_t size);
 void drm_gem_shmem_free_object(struct drm_gem_object *obj);
 
@@ -121,6 +111,18 @@ void drm_gem_shmem_unpin(struct drm_gem_object *obj);
 void *drm_gem_shmem_vmap(struct drm_gem_object *obj);
 void drm_gem_shmem_vunmap(struct drm_gem_object *obj, void *vaddr);
 
+int drm_gem_shmem_madvise(struct drm_gem_object *obj, int madv);
+
+static inline bool drm_gem_shmem_is_purgeable(struct drm_gem_shmem_object *shmem)
+{
+	return (shmem->madv > 0) &&
+		!shmem->vmap_use_count && shmem->sgt &&
+		!shmem->base.dma_buf && !shmem->base.import_attach;
+}
+
+void drm_gem_shmem_purge_locked(struct drm_gem_object *obj);
+bool drm_gem_shmem_purge(struct drm_gem_object *obj);
+
 struct drm_gem_shmem_object *
 drm_gem_shmem_create_with_handle(struct drm_file *file_priv,
 				 struct drm_device *dev, size_t size,
@@ -128,9 +130,7 @@ drm_gem_shmem_create_with_handle(struct drm_file *file_priv,
 int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev,
 			      struct drm_mode_create_dumb *args);
 
-int drm_gem_shmem_mmap(struct file *filp, struct vm_area_struct *vma);
-
-extern const struct vm_operations_struct drm_gem_shmem_vm_ops;
+int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 
 void drm_gem_shmem_print_info(struct drm_printer *p, unsigned int indent,
 			      const struct drm_gem_object *obj);