1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef _UAPI_LINUX_SCHED_H 3#define _UAPI_LINUX_SCHED_H 4 5#include <linux/types.h> 6 7/* 8 * cloning flags: 9 */ 10#define CSIGNAL 0x000000ff /* signal mask to be sent at exit */ 11#define CLONE_VM 0x00000100 /* set if VM shared between processes */ 12#define CLONE_FS 0x00000200 /* set if fs info shared between processes */ 13#define CLONE_FILES 0x00000400 /* set if open files shared between processes */ 14#define CLONE_SIGHAND 0x00000800 /* set if signal handlers and blocked signals shared */ 15#define CLONE_PIDFD 0x00001000 /* set if a pidfd should be placed in parent */ 16#define CLONE_PTRACE 0x00002000 /* set if we want to let tracing continue on the child too */ 17#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */ 18#define CLONE_PARENT 0x00008000 /* set if we want to have the same parent as the cloner */ 19#define CLONE_THREAD 0x00010000 /* Same thread group? */ 20#define CLONE_NEWNS 0x00020000 /* New mount namespace group */ 21#define CLONE_SYSVSEM 0x00040000 /* share system V SEM_UNDO semantics */ 22#define CLONE_SETTLS 0x00080000 /* create a new TLS for the child */ 23#define CLONE_PARENT_SETTID 0x00100000 /* set the TID in the parent */ 24#define CLONE_CHILD_CLEARTID 0x00200000 /* clear the TID in the child */ 25#define CLONE_DETACHED 0x00400000 /* Unused, ignored */ 26#define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */ 27#define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */ 28#define CLONE_NEWCGROUP 0x02000000 /* New cgroup namespace */ 29#define CLONE_NEWUTS 0x04000000 /* New utsname namespace */ 30#define CLONE_NEWIPC 0x08000000 /* New ipc namespace */ 31#define CLONE_NEWUSER 0x10000000 /* New user namespace */ 32#define CLONE_NEWPID 0x20000000 /* New pid namespace */ 33#define CLONE_NEWNET 0x40000000 /* New network namespace */ 34#define CLONE_IO 0x80000000 /* Clone io context */ 35 36#ifndef __ASSEMBLY__ 37/** 38 * struct clone_args - arguments for the clone3 syscall 39 * @flags: Flags for the new process as listed above. 40 * All flags are valid except for CSIGNAL and 41 * CLONE_DETACHED. 42 * @pidfd: If CLONE_PIDFD is set, a pidfd will be 43 * returned in this argument. 44 * @child_tid: If CLONE_CHILD_SETTID is set, the TID of the 45 * child process will be returned in the child's 46 * memory. 47 * @parent_tid: If CLONE_PARENT_SETTID is set, the TID of 48 * the child process will be returned in the 49 * parent's memory. 50 * @exit_signal: The exit_signal the parent process will be 51 * sent when the child exits. 52 * @stack: Specify the location of the stack for the 53 * child process. 54 * @stack_size: The size of the stack for the child process. 55 * @tls: If CLONE_SETTLS is set, the tls descriptor 56 * is set to tls. 57 * 58 * The structure is versioned by size and thus extensible. 59 * New struct members must go at the end of the struct and 60 * must be properly 64bit aligned. 61 */ 62struct clone_args { 63 __aligned_u64 flags; 64 __aligned_u64 pidfd; 65 __aligned_u64 child_tid; 66 __aligned_u64 parent_tid; 67 __aligned_u64 exit_signal; 68 __aligned_u64 stack; 69 __aligned_u64 stack_size; 70 __aligned_u64 tls; 71}; 72#endif 73 74#define CLONE_ARGS_SIZE_VER0 64 /* sizeof first published struct */ 75 76/* 77 * Scheduling policies 78 */ 79#define SCHED_NORMAL 0 80#define SCHED_FIFO 1 81#define SCHED_RR 2 82#define SCHED_BATCH 3 83/* SCHED_ISO: reserved but not implemented yet */ 84#define SCHED_IDLE 5 85#define SCHED_DEADLINE 6 86 87/* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */ 88#define SCHED_RESET_ON_FORK 0x40000000 89 90/* 91 * For the sched_{set,get}attr() calls 92 */ 93#define SCHED_FLAG_RESET_ON_FORK 0x01 94#define SCHED_FLAG_RECLAIM 0x02 95#define SCHED_FLAG_DL_OVERRUN 0x04 96#define SCHED_FLAG_KEEP_POLICY 0x08 97#define SCHED_FLAG_KEEP_PARAMS 0x10 98#define SCHED_FLAG_UTIL_CLAMP_MIN 0x20 99#define SCHED_FLAG_UTIL_CLAMP_MAX 0x40 100 101#define SCHED_FLAG_KEEP_ALL (SCHED_FLAG_KEEP_POLICY | \ 102 SCHED_FLAG_KEEP_PARAMS) 103 104#define SCHED_FLAG_UTIL_CLAMP (SCHED_FLAG_UTIL_CLAMP_MIN | \ 105 SCHED_FLAG_UTIL_CLAMP_MAX) 106 107#define SCHED_FLAG_ALL (SCHED_FLAG_RESET_ON_FORK | \ 108 SCHED_FLAG_RECLAIM | \ 109 SCHED_FLAG_DL_OVERRUN | \ 110 SCHED_FLAG_KEEP_ALL | \ 111 SCHED_FLAG_UTIL_CLAMP) 112 113#endif /* _UAPI_LINUX_SCHED_H */ 114