1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (c) 2022, Oracle and/or its affiliates. 4 * Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved 5 */ 6 #ifndef _IOVA_BITMAP_H_ 7 #define _IOVA_BITMAP_H_ 8 9 #include <linux/types.h> 10 11 struct iova_bitmap; 12 13 typedef int (*iova_bitmap_fn_t)(struct iova_bitmap *bitmap, 14 unsigned long iova, size_t length, 15 void *opaque); 16 17 struct iova_bitmap *iova_bitmap_alloc(unsigned long iova, size_t length, 18 unsigned long page_size, 19 u64 __user *data); 20 void iova_bitmap_free(struct iova_bitmap *bitmap); 21 int iova_bitmap_for_each(struct iova_bitmap *bitmap, void *opaque, 22 iova_bitmap_fn_t fn); 23 void iova_bitmap_set(struct iova_bitmap *bitmap, 24 unsigned long iova, size_t length); 25 26 #endif 27