diff options
Diffstat (limited to 'arch/microblaze/include/asm/thread_info.h')
| -rw-r--r-- | arch/microblaze/include/asm/thread_info.h | 69 |
1 files changed, 48 insertions, 21 deletions
diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h index 4c3943e3f40..8c9d36591a0 100644 --- a/arch/microblaze/include/asm/thread_info.h +++ b/arch/microblaze/include/asm/thread_info.h @@ -19,7 +19,6 @@ #ifndef __ASSEMBLY__ # include <linux/types.h> # include <asm/processor.h> -# include <asm/segment.h> /* * low level task data that entry.S needs immediate access to @@ -60,6 +59,10 @@ struct cpu_context { __u32 fsr; }; +typedef struct { + unsigned long seg; +} mm_segment_t; + struct thread_info { struct task_struct *task; /* main task structure */ struct exec_domain *exec_domain; /* execution domain */ @@ -75,8 +78,6 @@ struct thread_info { /* * 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) \ { \ @@ -84,7 +85,7 @@ struct thread_info { .exec_domain = &default_exec_domain, \ .flags = 0, \ .cpu = 0, \ - .preempt_count = 1, \ + .preempt_count = INIT_PREEMPT_COUNT, \ .addr_limit = KERNEL_DS, \ .restart_block = { \ .fn = do_no_restart_syscall, \ @@ -105,8 +106,6 @@ static inline struct thread_info *current_thread_info(void) /* thread information allocation */ #endif /* __ASSEMBLY__ */ -#define PREEMPT_ACTIVE 0x10000000 - /* * thread information flags * - these are process state flags that various assembly files may @@ -120,28 +119,29 @@ static inline struct thread_info *current_thread_info(void) #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ /* restore singlestep on return to user mode */ #define TIF_SINGLESTEP 4 -#define TIF_IRET 5 /* return with iret */ -#define TIF_MEMDIE 6 -#define TIF_FREEZE 14 /* Freezing for suspend */ - -/* FIXME change in entry.S */ -#define TIF_KERNEL_TRACE 8 /* kernel trace active */ +#define TIF_MEMDIE 6 /* is terminating due to OOM killer */ +#define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */ +#define TIF_SECCOMP 10 /* secure computing */ /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_POLLING_NRFLAG 16 -#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) -#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) -#define _TIF_IRET (1<<TIF_IRET) -#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) -#define _TIF_FREEZE (1<<TIF_FREEZE) -#define _TIF_KERNEL_TRACE (1 << TIF_KERNEL_TRACE) +#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) +#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) +#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) +#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) +#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) +#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) +#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) +#define _TIF_SECCOMP (1 << TIF_SECCOMP) + +/* work to do in syscall trace */ +#define _TIF_WORK_SYSCALL_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \ + _TIF_SYSCALL_AUDIT | _TIF_SECCOMP) /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK 0x0000FFFE + /* work to do on any return to u-space */ #define _TIF_ALLWORK_MASK 0x0000FFFF @@ -154,6 +154,33 @@ static inline struct thread_info *current_thread_info(void) */ /* FPU was used by this task this quantum (SMP) */ #define TS_USEDFPU 0x0001 +#define TS_RESTORE_SIGMASK 0x0002 + +#ifndef __ASSEMBLY__ +#define HAVE_SET_RESTORE_SIGMASK 1 +static inline void set_restore_sigmask(void) +{ + struct thread_info *ti = current_thread_info(); + ti->status |= TS_RESTORE_SIGMASK; + WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags)); +} +static inline void clear_restore_sigmask(void) +{ + current_thread_info()->status &= ~TS_RESTORE_SIGMASK; +} +static inline bool test_restore_sigmask(void) +{ + return current_thread_info()->status & TS_RESTORE_SIGMASK; +} +static inline bool test_and_clear_restore_sigmask(void) +{ + struct thread_info *ti = current_thread_info(); + if (!(ti->status & TS_RESTORE_SIGMASK)) + return false; + ti->status &= ~TS_RESTORE_SIGMASK; + return true; +} +#endif #endif /* __KERNEL__ */ #endif /* _ASM_MICROBLAZE_THREAD_INFO_H */ |