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1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _LINUX_PAGE_REPORTING_H | |
3 | #define _LINUX_PAGE_REPORTING_H | |
4 | ||
5 | #include <linux/mmzone.h> | |
6 | #include <linux/scatterlist.h> | |
7 | ||
43b76f29 | 8 | /* This value should always be a power of 2, see page_reporting_cycle() */ |
36e66c55 AD |
9 | #define PAGE_REPORTING_CAPACITY 32 |
10 | ||
11 | struct page_reporting_dev_info { | |
12 | /* function that alters pages to make them "reported" */ | |
13 | int (*report)(struct page_reporting_dev_info *prdev, | |
14 | struct scatterlist *sg, unsigned int nents); | |
15 | ||
16 | /* work struct for processing reports */ | |
17 | struct delayed_work work; | |
18 | ||
19 | /* Current state of page reporting */ | |
20 | atomic_t state; | |
21 | }; | |
22 | ||
23 | /* Tear-down and bring-up for page reporting devices */ | |
24 | void page_reporting_unregister(struct page_reporting_dev_info *prdev); | |
25 | int page_reporting_register(struct page_reporting_dev_info *prdev); | |
26 | #endif /*_LINUX_PAGE_REPORTING_H */ |