/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _PR_H #define _PR_H #include <linux/types.h> enum pr_type { PR_WRITE_EXCLUSIVE = 1, PR_EXCLUSIVE_ACCESS = 2, PR_WRITE_EXCLUSIVE_REG_ONLY = 3, PR_EXCLUSIVE_ACCESS_REG_ONLY = 4, PR_WRITE_EXCLUSIVE_ALL_REGS = 5, PR_EXCLUSIVE_ACCESS_ALL_REGS = 6, }; struct pr_reservation { __u64 key; __u32 type; __u32 flags; }; struct pr_registration { __u64 old_key; __u64 new_key; __u32 flags; __u32 __pad; }; struct pr_preempt { __u64 old_key; __u64 new_key; __u32 type; __u32 flags; }; struct pr_clear { __u64 key; __u32 flags; __u32 __pad; }; #define PR_FL_IGNORE_KEY (1 << 0) /* ignore existing key */ #define IOC_PR_REGISTER _IOW('p', 200, struct pr_registration) #define IOC_PR_RESERVE _IOW('p', 201, struct pr_reservation) #define IOC_PR_RELEASE _IOW('p', 202, struct pr_reservation) #define IOC_PR_PREEMPT _IOW('p', 203, struct pr_preempt) #define IOC_PR_PREEMPT_ABORT _IOW('p', 204, struct pr_preempt) #define IOC_PR_CLEAR _IOW('p', 205, struct pr_clear) #endif /* _PR_H */