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Diffstat (limited to '')
-rw-r--r-- | arch/parisc/include/asm/thread_info.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h new file mode 100644 index 000000000..1a58795f7 --- /dev/null +++ b/arch/parisc/include/asm/thread_info.h @@ -0,0 +1,85 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_PARISC_THREAD_INFO_H +#define _ASM_PARISC_THREAD_INFO_H + +#ifndef __ASSEMBLY__ +#include <asm/processor.h> +#include <asm/special_insns.h> + +struct thread_info { + unsigned long flags; /* thread_info flags (see TIF_*) */ + int preempt_count; /* 0=premptable, <0=BUG; will also serve as bh-counter */ +#ifdef CONFIG_SMP + unsigned int cpu; +#endif +}; + +#define INIT_THREAD_INFO(tsk) \ +{ \ + .flags = 0, \ + .preempt_count = INIT_PREEMPT_COUNT, \ +} + +#endif /* !__ASSEMBLY */ + +/* thread information allocation */ + +#ifdef CONFIG_IRQSTACKS +#define THREAD_SIZE_ORDER 2 /* PA-RISC requires at least 16k stack */ +#else +#define THREAD_SIZE_ORDER 3 /* PA-RISC requires at least 32k stack */ +#endif + +/* Be sure to hunt all references to this down when you change the size of + * the kernel stack */ +#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) +#define THREAD_SHIFT (PAGE_SHIFT + THREAD_SIZE_ORDER) + +/* + * thread information flags + */ +#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ +#define TIF_SIGPENDING 1 /* signal pending */ +#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ +#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */ +#define TIF_32BIT 4 /* 32 bit binary */ +#define TIF_MEMDIE 5 /* is terminating due to OOM killer */ +#define TIF_NOTIFY_SIGNAL 6 /* signal notifications exist */ +#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ +#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */ +#define TIF_SINGLESTEP 9 /* single stepping? */ +#define TIF_BLOCKSTEP 10 /* branch stepping? */ +#define TIF_SECCOMP 11 /* secure computing */ +#define TIF_SYSCALL_TRACEPOINT 12 /* syscall tracepoint instrumentation */ +#define TIF_NONBLOCK_WARNING 13 /* warned about wrong O_NONBLOCK usage */ + +#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) +#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) +#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL) +#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) +#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) +#define _TIF_32BIT (1 << TIF_32BIT) +#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) +#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) +#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) +#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP) +#define _TIF_SECCOMP (1 << TIF_SECCOMP) +#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) + +#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \ + _TIF_NEED_RESCHED | _TIF_NOTIFY_SIGNAL) +#define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ + _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT | \ + _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) + +#ifdef CONFIG_64BIT +# ifdef CONFIG_COMPAT +# define is_32bit_task() (test_thread_flag(TIF_32BIT)) +# else +# define is_32bit_task() (0) +# endif +#else +# define is_32bit_task() (1) +#endif + +#endif /* _ASM_PARISC_THREAD_INFO_H */ |