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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_PAGE_REPORTING_H
#define _LINUX_PAGE_REPORTING_H
#include <linux/mmzone.h>
#include <linux/scatterlist.h>
/* This value should always be a power of 2, see page_reporting_cycle() */
#define PAGE_REPORTING_CAPACITY 32
struct page_reporting_dev_info {
/* function that alters pages to make them "reported" */
int (*report)(struct page_reporting_dev_info *prdev,
struct scatterlist *sg, unsigned int nents);
/* work struct for processing reports */
struct delayed_work work;
/* Current state of page reporting */
atomic_t state;
/* Minimal order of page reporting */
unsigned int order;
};
/* Tear-down and bring-up for page reporting devices */
void page_reporting_unregister(struct page_reporting_dev_info *prdev);
int page_reporting_register(struct page_reporting_dev_info *prdev);
#endif /*_LINUX_PAGE_REPORTING_H */
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