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:
+ */