summaryrefslogtreecommitdiffstats
path: root/arch/m68k/include/asm/thread_info_mm.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/include/asm/thread_info_mm.h')
-rw-r--r--arch/m68k/include/asm/thread_info_mm.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/thread_info_mm.h b/arch/m68k/include/asm/thread_info_mm.h
new file mode 100644
index 00000000000..af0fda46e94
--- /dev/null
+++ b/arch/m68k/include/asm/thread_info_mm.h
@@ -0,0 +1,57 @@
+#ifndef _ASM_M68K_THREAD_INFO_H
+#define _ASM_M68K_THREAD_INFO_H
+
+#include <asm/types.h>
+#include <asm/page.h>
+
+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 */
+ struct restart_block restart_block;
+};
+
+#define PREEMPT_ACTIVE 0x4000000
+
+#define INIT_THREAD_INFO(tsk) \
+{ \
+ .task = &tsk, \
+ .exec_domain = &default_exec_domain, \
+ .restart_block = { \
+ .fn = do_no_restart_syscall, \
+ }, \
+}
+
+/* THREAD_SIZE should be 8k, so handle differently for 4k and 8k machines */
+#define THREAD_SIZE_ORDER (13 - PAGE_SHIFT)
+
+#define init_thread_info (init_task.thread.info)
+#define init_stack (init_thread_union.stack)
+
+#define task_thread_info(tsk) (&(tsk)->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)
+
+/* 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
+#define TIF_FREEZE 17 /* thread is freezing for suspend */
+
+#endif /* _ASM_M68K_THREAD_INFO_H */