1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _UAPI_PR_H 20 #define _UAPI_PR_H 21 #include <linux/types.h> 22 enum pr_status { 23 PR_STS_SUCCESS = 0x0, 24 PR_STS_IOERR = 0x2, 25 PR_STS_RESERVATION_CONFLICT = 0x18, 26 PR_STS_RETRY_PATH_FAILURE = 0xe0000, 27 PR_STS_PATH_FAST_FAILED = 0xf0000, 28 PR_STS_PATH_FAILED = 0x10000, 29 }; 30 enum pr_type { 31 PR_WRITE_EXCLUSIVE = 1, 32 PR_EXCLUSIVE_ACCESS = 2, 33 PR_WRITE_EXCLUSIVE_REG_ONLY = 3, 34 PR_EXCLUSIVE_ACCESS_REG_ONLY = 4, 35 PR_WRITE_EXCLUSIVE_ALL_REGS = 5, 36 PR_EXCLUSIVE_ACCESS_ALL_REGS = 6, 37 }; 38 struct pr_reservation { 39 __u64 key; 40 __u32 type; 41 __u32 flags; 42 }; 43 struct pr_registration { 44 __u64 old_key; 45 __u64 new_key; 46 __u32 flags; 47 __u32 __pad; 48 }; 49 struct pr_preempt { 50 __u64 old_key; 51 __u64 new_key; 52 __u32 type; 53 __u32 flags; 54 }; 55 struct pr_clear { 56 __u64 key; 57 __u32 flags; 58 __u32 __pad; 59 }; 60 #define PR_FL_IGNORE_KEY (1 << 0) 61 #define IOC_PR_REGISTER _IOW('p', 200, struct pr_registration) 62 #define IOC_PR_RESERVE _IOW('p', 201, struct pr_reservation) 63 #define IOC_PR_RELEASE _IOW('p', 202, struct pr_reservation) 64 #define IOC_PR_PREEMPT _IOW('p', 203, struct pr_preempt) 65 #define IOC_PR_PREEMPT_ABORT _IOW('p', 204, struct pr_preempt) 66 #define IOC_PR_CLEAR _IOW('p', 205, struct pr_clear) 67 #endif 68