container freezer: add TIF_FREEZE flag to all architectures
[linux-2.6.git] / include / asm-um / thread_info.h
index a10ea15..62274ab 100644 (file)
@@ -1,5 +1,5 @@
-/* 
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+/*
+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
@@ -8,71 +8,68 @@
 
 #ifndef __ASSEMBLY__
 
-#include <linux/config.h>
-#include <asm/processor.h>
 #include <asm/types.h>
+#include <asm/page.h>
+#include <asm/uaccess.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, 
+       int                     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;
+       struct thread_info      *real_thread;    /* Points to non-IRQ stack */
 };
 
 #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,     \
+       .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,   \
        },                                      \
+       .real_thread = NULL,                    \
 }
 
 #define init_thread_info       (init_thread_union.thread_info)
 #define init_stack             (init_thread_union.stack)
 
+#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE)
 /* 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);
+       unsigned long mask = THREAD_SIZE - 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)
+#define THREAD_SIZE_ORDER CONFIG_KERNEL_STACK_ORDER
 
 #endif
 
-#define PREEMPT_ACTIVE         0x4000000
+#define PREEMPT_ACTIVE         0x10000000
 
 #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_POLLING_NRFLAG      3       /* true if poll_idle() is polling
+                                        * TIF_NEED_RESCHED
                                         */
 #define TIF_RESTART_BLOCK      4
 #define TIF_MEMDIE             5
 #define TIF_SYSCALL_AUDIT      6
+#define TIF_RESTORE_SIGMASK    7
+#define TIF_FREEZE             16      /* is freezing for suspend */
 
 #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING                (1 << TIF_SIGPENDING)
@@ -80,16 +77,7 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_POLLING_NRFLAG     (1 << TIF_POLLING_NRFLAG)
 #define _TIF_MEMDIE            (1 << TIF_MEMDIE)
 #define _TIF_SYSCALL_AUDIT     (1 << TIF_SYSCALL_AUDIT)
+#define _TIF_RESTORE_SIGMASK   (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE            (1 << TIF_FREEZE)
 
 #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:
- */