1 files changed, 93 insertions, 0 deletions

diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h
new file mode 100644
index 000000000000..bffb577bc54e
--- /dev/null
+++ b/include/asm-um/thread_info.h
@@ -0,0 +1,93 @@
+/* 
+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_THREAD_INFO_H
+#define __UM_THREAD_INFO_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/types.h>
+
+struct thread_info {
+        struct task_struct      *task;          /* main task structure */
+        struct exec_domain      *exec_domain;   /* execution domain */
+        unsigned long           flags;          /* low level flags */
+        __u32                   cpu;            /* current CPU */
+        __s32                   preempt_count;  /* 0 => preemptable, 
+                                                   <0 => BUG */
+        mm_segment_t            addr_limit;     /* thread address space:
+                                                   0-0xBFFFFFFF for user
+                                                   0-0xFFFFFFFF for kernel */
+        struct restart_block    restart_block;
+};
+
+#define INIT_THREAD_INFO(tsk)                   \
+{                                               \
+        task:           &tsk,                   \
+        exec_domain:    &default_exec_domain,   \
+        flags:          0,                      \
+        cpu:            0,                      \
+        preempt_count:  1,                      \
+        addr_limit:     KERNEL_DS,              \
+        restart_block:  {                       \
+                fn:  do_no_restart_syscall,     \
+        },                                      \
+}
+
+#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 */
+static inline struct thread_info *current_thread_info(void)
+{
+        struct thread_info *ti;
+        unsigned long mask = PAGE_SIZE *
+                (1 << CONFIG_KERNEL_STACK_ORDER) - 1;
+        ti = (struct thread_info *) (((unsigned long) &ti) & ~mask);
+        return ti;
+}
+
+/* thread information allocation */
+#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE)
+#define alloc_thread_info(tsk) \
+        ((struct thread_info *) kmalloc(THREAD_SIZE, GFP_KERNEL))
+#define free_thread_info(ti) kfree(ti)
+
+#define get_thread_info(ti) get_task_struct((ti)->task)
+#define put_thread_info(ti) put_task_struct((ti)->task)
+
+#endif
+
+#define PREEMPT_ACTIVE          0x4000000
+
+#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_RESTART_BLOCK       4
+#define TIF_MEMDIE              5
+
+#define _TIF_SYSCALL_TRACE      (1 << TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING         (1 << TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED       (1 << TIF_NEED_RESCHED)
+#define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
+#define _TIF_RESTART_BLOCK      (1 << TIF_RESTART_BLOCK)
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */