1 files changed, 106 insertions, 3 deletions

diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h
index f31a3f42b7b3..1da5d53a00eb 100644
--- a/arch/m68k/include/asm/thread_info.h
+++ b/arch/m68k/include/asm/thread_info.h
@@ -1,5 +1,108 @@
-#ifdef __uClinux__
-#include "thread_info_no.h"
+#ifndef _ASM_M68K_THREAD_INFO_H
+#define _ASM_M68K_THREAD_INFO_H
+
+#include <asm/types.h>
+#include <asm/page.h>
+
+/*
+ * On machines with 4k pages we default to an 8k thread size, though we
+ * allow a 4k with config option. Any other machine page size then
+ * the thread size must match the page size (which is 8k and larger here).
+ */
+#if PAGE_SHIFT < 13
+#ifdef CONFIG_4KSTACKS
+#define THREAD_SIZE     4096
 #else
-#include "thread_info_mm.h"
+#define THREAD_SIZE     8192
 #endif
+#else
+#define THREAD_SIZE     PAGE_SIZE
+#endif
+#define THREAD_SIZE_ORDER       ((THREAD_SIZE / PAGE_SIZE) - 1)
+
+#ifndef __ASSEMBLY__
+
+struct thread_info {
+        struct task_struct      *task;          /* main task structure */
+        unsigned long           flags;
+        struct exec_domain      *exec_domain;   /* execution domain */
+        int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
+        __u32                   cpu;            /* should always be 0 on m68k */
+        unsigned long           tp_value;       /* thread pointer */
+        struct restart_block    restart_block;
+};
+#endif /* __ASSEMBLY__ */
+
+#define PREEMPT_ACTIVE          0x4000000
+
+#define INIT_THREAD_INFO(tsk)                   \
+{                                               \
+        .task           = &tsk,                 \
+        .exec_domain    = &default_exec_domain, \
+        .preempt_count  = INIT_PREEMPT_COUNT,   \
+        .restart_block = {                      \
+                .fn = do_no_restart_syscall,    \
+        },                                      \
+}
+
+#define init_stack              (init_thread_union.stack)
+
+#ifdef CONFIG_MMU
+
+#ifndef __ASSEMBLY__
+#include <asm/current.h>
+#endif
+
+#ifdef ASM_OFFSETS_C
+#define task_thread_info(tsk)   ((struct thread_info *) NULL)
+#else
+#include <asm/asm-offsets.h>
+#define task_thread_info(tsk)   ((struct thread_info *)((char *)tsk+TASK_TINFO))
+#endif
+
+#define init_thread_info        (init_task.thread.info)
+#define task_stack_page(tsk)    ((tsk)->stack)
+#define current_thread_info()   task_thread_info(current)
+
+#define __HAVE_THREAD_FUNCTIONS
+
+#define setup_thread_stack(p, org) ({                   \
+        *(struct task_struct **)(p)->stack = (p);       \
+        task_thread_info(p)->task = (p);                \
+})
+
+#define end_of_stack(p)         ((unsigned long *)(p)->stack + 1)
+
+#else /* !CONFIG_MMU */
+
+#ifndef __ASSEMBLY__
+/* how to get the thread information struct from C */
+static inline struct thread_info *current_thread_info(void)
+{
+        struct thread_info *ti;
+        __asm__(
+                "move.l %%sp, %0 \n\t"
+                "and.l  %1, %0"
+                : "=&d"(ti)
+                : "di" (~(THREAD_SIZE-1))
+                );
+        return ti;
+}
+#endif
+
+#define init_thread_info        (init_thread_union.thread_info)
+
+#endif /* CONFIG_MMU */
+
+/* entry.S relies on these definitions!
+ * bits 0-7 are tested at every exception exit
+ * bits 8-15 are also tested at syscall exit
+ */
+#define TIF_SIGPENDING          6       /* signal pending */
+#define TIF_NEED_RESCHED        7       /* rescheduling necessary */
+#define TIF_DELAYED_TRACE       14      /* single step a syscall */
+#define TIF_SYSCALL_TRACE       15      /* syscall trace active */
+#define TIF_MEMDIE              16      /* is terminating due to OOM killer */
+#define TIF_FREEZE              17      /* thread is freezing for suspend */
+
+#endif  /* _ASM_M68K_THREAD_INFO_H */