1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_PARISC_THREAD_INFO_H 3 #define _ASM_PARISC_THREAD_INFO_H 4 5 #ifndef __ASSEMBLY__ 6 #include <asm/processor.h> 7 #include <asm/special_insns.h> 8 9 struct thread_info { 10 unsigned long flags; /* thread_info flags (see TIF_*) */ 11 int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */ 12 #ifdef CONFIG_SMP 13 unsigned int cpu; 14 #endif 15 }; 16 17 #define INIT_THREAD_INFO(tsk) \ 18 { \ 19 .flags = 0, \ 20 .preempt_count = INIT_PREEMPT_COUNT, \ 21 } 22 23 #endif /* !__ASSEMBLY */ 24 25 /* thread information allocation */ 26 27 #ifdef CONFIG_IRQSTACKS 28 #define THREAD_SIZE_ORDER 2 /* PA-RISC requires at least 16k stack */ 29 #else 30 #define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */ 31 #endif 32 33 /* Be sure to hunt all references to this down when you change the size of 34 * the kernel stack */ 35 #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) 36 #define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER) 37 38 /* 39 * thread information flags 40 */ 41 #define TIF_SYSCALL_TRACE 0 /* syscall trace active */ 42 #define TIF_SIGPENDING 1 /* signal pending */ 43 #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ 44 #define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */ 45 #define TIF_32BIT 4 /* 32 bit binary */ 46 #define TIF_MEMDIE 5 /* is terminating due to OOM killer */ 47 #define TIF_NOTIFY_SIGNAL 6 /* signal notifications exist */ 48 #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ 49 #define TIF_NOTIFY_RESUME 8 /* callback before returning to user */ 50 #define TIF_SINGLESTEP 9 /* single stepping? */ 51 #define TIF_BLOCKSTEP 10 /* branch stepping? */ 52 #define TIF_SECCOMP 11 /* secure computing */ 53 #define TIF_SYSCALL_TRACEPOINT 12 /* syscall tracepoint instrumentation */ 54 #define TIF_NONBLOCK_WARNING 13 /* warned about wrong O_NONBLOCK usage */ 55 56 #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) 57 #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) 58 #define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL) 59 #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) 60 #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) 61 #define _TIF_32BIT (1 << TIF_32BIT) 62 #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) 63 #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) 64 #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) 65 #define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP) 66 #define _TIF_SECCOMP (1 << TIF_SECCOMP) 67 #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) 68 69 #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \ 70 _TIF_NEED_RESCHED | _TIF_NOTIFY_SIGNAL) 71 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ 72 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \ 73 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) 74 75 #ifdef CONFIG_64BIT 76 # ifdef CONFIG_COMPAT 77 # define is_32bit_task() (test_thread_flag(TIF_32BIT)) 78 # else 79 # define is_32bit_task() (0) 80 # endif 81 #else 82 # define is_32bit_task() (1) 83 #endif 84 85 #endif /* _ASM_PARISC_THREAD_INFO_H */ 86