1 files changed, 80 insertions, 0 deletions

diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
new file mode 100644
index 000000000000..fe9b7f8ae4c6
--- /dev/null
+++ b/include/asm-parisc/thread_info.h
@@ -0,0 +1,80 @@
+#ifndef _ASM_PARISC_THREAD_INFO_H
+#define _ASM_PARISC_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+#include <asm/processor.h>
+
+struct thread_info {
+        struct task_struct *task;       /* main task structure */
+        struct exec_domain *exec_domain;/* execution domain */
+        unsigned long flags;            /* thread_info flags (see TIF_*) */
+        mm_segment_t addr_limit;        /* user-level address space limit */
+        __u32 cpu;                      /* current CPU */
+        __s32 preempt_count;            /* 0=premptable, <0=BUG; will also serve as bh-counter */
+        struct restart_block restart_block;
+};
+
+#define INIT_THREAD_INFO(tsk)                   \
+{                                               \
+        .task           = &tsk,                 \
+        .exec_domain    = &default_exec_domain, \
+        .flags          = 0,                    \
+        .cpu            = 0,                    \
+        .addr_limit     = KERNEL_DS,            \
+        .preempt_count  = 1,                    \
+        .restart_block  = {                     \
+                .fn = do_no_restart_syscall     \
+        }                                       \
+}
+
+#define init_thread_info        (init_thread_union.thread_info)
+#define init_stack              (init_thread_union.stack)
+
+/* thread information allocation */
+
+#define THREAD_ORDER            2
+/* Be sure to hunt all references to this down when you change the size of
+ * the kernel stack */
+#define THREAD_SIZE             (PAGE_SIZE << THREAD_ORDER)
+#define THREAD_SHIFT            (PAGE_SHIFT + THREAD_ORDER)
+
+#define alloc_thread_info(tsk) ((struct thread_info *) \
+                        __get_free_pages(GFP_KERNEL, THREAD_ORDER))
+#define free_thread_info(ti)    free_pages((unsigned long) (ti), THREAD_ORDER)
+#define get_thread_info(ti)     get_task_struct((ti)->task)
+#define put_thread_info(ti)     put_task_struct((ti)->task)
+
+
+/* how to get the thread information struct from C */
+#define current_thread_info()   ((struct thread_info *)mfctl(30))
+
+#endif /* !__ASSEMBLY */
+
+#define PREEMPT_ACTIVE          0x10000000
+
+/*
+ * thread information flags
+ */
+#define TIF_SYSCALL_TRACE       0       /* syscall trace active */
+#define TIF_NOTIFY_RESUME       1       /* resumption notification requested */
+#define TIF_SIGPENDING          2       /* signal pending */
+#define TIF_NEED_RESCHED        3       /* rescheduling necessary */
+#define TIF_POLLING_NRFLAG      4       /* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_32BIT               5       /* 32 bit binary */
+#define TIF_MEMDIE              6
+
+#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_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
+#define _TIF_32BIT              (1 << TIF_32BIT)
+
+#define _TIF_USER_WORK_MASK     (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | \
+                                 _TIF_NEED_RESCHED)
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_PARISC_THREAD_INFO_H */