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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253/* SPDX-License-Identifier: GPL-2.0 *//* * Copyright (c) 2022, Oracle and/or its affiliates. * Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved */#ifndef _IOVA_BITMAP_H_#define _IOVA_BITMAP_H_
#include <linux/types.h>#include <linux/errno.h>
struct iova_bitmap;
typedef int (*iova_bitmap_fn_t)(struct iova_bitmap *bitmap, unsigned long iova, size_t length, void *opaque);
#if IS_ENABLED(CONFIG_IOMMUFD_DRIVER)struct iova_bitmap *iova_bitmap_alloc(unsigned long iova, size_t length, unsigned long page_size, u64 __user *data);void iova_bitmap_free(struct iova_bitmap *bitmap);int iova_bitmap_for_each(struct iova_bitmap *bitmap, void *opaque, iova_bitmap_fn_t fn);void iova_bitmap_set(struct iova_bitmap *bitmap, unsigned long iova, size_t length);#elsestatic inline struct iova_bitmap *iova_bitmap_alloc(unsigned long iova, size_t length, unsigned long page_size, u64 __user *data){ return NULL;}
static inline void iova_bitmap_free(struct iova_bitmap *bitmap){}
static inline int iova_bitmap_for_each(struct iova_bitmap *bitmap, void *opaque, iova_bitmap_fn_t fn){ return -EOPNOTSUPP;}
static inline void iova_bitmap_set(struct iova_bitmap *bitmap, unsigned long iova, size_t length){}#endif
#endif