/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_SCORE_THREAD_INFO_H #define _ASM_SCORE_THREAD_INFO_H #ifdef __KERNEL__ #define KU_MASK 0x08 #define KU_USER 0x08 #define KU_KERN 0x00 #include <asm/page.h> #include <linux/const.h> /* thread information allocation */ #define THREAD_SIZE_ORDER (1) #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #define THREAD_MASK (THREAD_SIZE - _AC(1,UL)) #ifndef __ASSEMBLY__ #include <asm/processor.h> /* * low level task data that entry.S needs immediate access to * - this struct should fit entirely inside of one cache line * - this struct shares the supervisor stack pages * - if the contents of this structure are changed, the assembly constants * must also be changed */ struct thread_info { struct task_struct *task; /* main task structure */ unsigned long flags; /* low level flags */ unsigned long tp_value; /* thread pointer */ __u32 cpu; /* current CPU */ /* 0 => preemptable, < 0 => BUG */ int preempt_count; /* * thread address space: * 0-0xBFFFFFFF for user-thead * 0-0xFFFFFFFF for kernel-thread */ mm_segment_t addr_limit; struct pt_regs *regs; }; /* * macros/functions for gaining access to the thread information structure * * preempt_count needs to be 1 initially, until the scheduler is functional. */ #define INIT_THREAD_INFO(tsk) \ { \ .task = &tsk, \ .cpu = 0, \ .preempt_count = 1, \ .addr_limit = KERNEL_DS, \ } #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) /* How to get the thread information struct from C. */ register struct thread_info *__current_thread_info __asm__("r28"); #define current_thread_info() __current_thread_info #endif /* !__ASSEMBLY__ */ /* * thread information flags * - these are process state flags that various assembly files may need to * access * - pending work-to-be-done flags are in LSW * - other flags in MSW */ #define TIF_SYSCALL_TRACE 0 /* syscall trace active */ #define TIF_SIGPENDING 1 /* signal pending */ #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ #define TIF_NOTIFY_RESUME 5 /* callback before returning to user */ #define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */ #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_WORK_MASK (0x0000ffff) #endif /* __KERNEL__ */ #endif /* _ASM_SCORE_THREAD_INFO_H */Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Chen Liqin | 157 | 87.71% | 2 | 33.33% |
Tim Abbott | 19 | 10.61% | 1 | 16.67% |
Andreas Dilger | 1 | 0.56% | 1 | 16.67% |
Richard Weinberger | 1 | 0.56% | 1 | 16.67% |
Greg Kroah-Hartman | 1 | 0.56% | 1 | 16.67% |
Total | 179 | 100.00% | 6 | 100.00% |