1 /* SPDX-License-Identifier: GPL-2.0 */
3 * channel program interfaces
5 * Copyright IBM Corp. 2017
11 #ifndef _VFIO_CCW_CP_H_
12 #define _VFIO_CCW_CP_H_
20 * struct channel_program - manage information for channel program
21 * @ccwchain_list: list head of ccwchains
22 * @orb: orb for the currently processed ssch request
23 * @mdev: the mediated device to perform page pinning/unpinning
25 * @ccwchain_list is the head of a ccwchain list, that contents the
26 * translated result of the guest channel program that pointed out by
27 * the iova parameter when calling cp_init.
29 struct channel_program {
30 struct list_head ccwchain_list;
35 extern int cp_init(struct channel_program *cp, struct device *mdev,
37 extern void cp_free(struct channel_program *cp);
38 extern int cp_prefetch(struct channel_program *cp);
39 extern union orb *cp_get_orb(struct channel_program *cp, u32 intparm, u8 lpm);
40 extern void cp_update_scsw(struct channel_program *cp, union scsw *scsw);
41 extern bool cp_iova_pinned(struct channel_program *cp, u64 iova);