fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-arm / thread_info.h

diff --git a/include/asm-arm/thread_info.h b/include/asm-arm/thread_info.h
index 66c585c..5014794 100644 (file)
--- a/include/asm-arm/thread_info.h
+++ b/include/asm-arm/thread_info.h
@@ -12,6 +12,7 @@
 
 #ifdef __KERNEL__
 
+#include <linux/compiler.h>
 #include <asm/fpstate.h>
 
 #define THREAD_SIZE_ORDER      1
@@ -49,7 +50,7 @@ struct cpu_context_save {
  */
 struct thread_info {
        unsigned long           flags;          /* low level flags */
-       __s32                   preempt_count;  /* 0 => preemptable, <0 => bug */
+       int                     preempt_count;  /* 0 => preemptable, <0 => bug */
        mm_segment_t            addr_limit;     /* address limit */
        struct task_struct      *task;          /* main task structure */
        struct exec_domain      *exec_domain;   /* execution domain */
@@ -58,7 +59,8 @@ struct thread_info {
        struct cpu_context_save cpu_context;    /* cpu context */
        __u8                    used_cp[16];    /* thread used copro */
        unsigned long           tp_value;
-       union fp_state          fpstate;
+       struct crunch_state     crunchstate;
+       union fp_state          fpstate __attribute__((aligned(8)));
        union vfp_state         vfpstate;
        struct restart_block    restart_block;
 };
@@ -92,27 +94,40 @@ static inline struct thread_info *current_thread_info(void)
        return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
 }
 
-extern struct thread_info *alloc_thread_info(struct task_struct *task);
-extern void free_thread_info(struct thread_info *);
+/* thread information allocation */
+#ifdef CONFIG_DEBUG_STACK_USAGE
+#define alloc_thread_info(tsk) \
+       ((struct thread_info *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, \
+               THREAD_SIZE_ORDER))
+#else
+#define alloc_thread_info(tsk) \
+       ((struct thread_info *)__get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER))
+#endif
 
-#define get_thread_info(ti)    get_task_struct((ti)->task)
-#define put_thread_info(ti)    put_task_struct((ti)->task)
+#define free_thread_info(info) \
+       free_pages((unsigned long)info, THREAD_SIZE_ORDER);
 
 #define thread_saved_pc(tsk)   \
-       ((unsigned long)(pc_pointer((tsk)->thread_info->cpu_context.pc)))
+       ((unsigned long)(pc_pointer(task_thread_info(tsk)->cpu_context.pc)))
 #define thread_saved_fp(tsk)   \
-       ((unsigned long)((tsk)->thread_info->cpu_context.fp))
+       ((unsigned long)(task_thread_info(tsk)->cpu_context.fp))
+
+extern void crunch_task_disable(struct thread_info *);
+extern void crunch_task_copy(struct thread_info *, void *);
+extern void crunch_task_restore(struct thread_info *, void *);
+extern void crunch_task_release(struct thread_info *);
 
 extern void iwmmxt_task_disable(struct thread_info *);
 extern void iwmmxt_task_copy(struct thread_info *, void *);
 extern void iwmmxt_task_restore(struct thread_info *, void *);
 extern void iwmmxt_task_release(struct thread_info *);
+extern void iwmmxt_task_switch(struct thread_info *);
 
 #endif
 
 /*
  * We use bit 30 of the preempt_count to indicate that kernel
- * preemption is occuring.  See include/asm-arm/hardirq.h.
+ * preemption is occurring.  See include/asm-arm/hardirq.h.
  */
 #define PREEMPT_ACTIVE 0x40000000
 
@@ -132,6 +147,7 @@ extern void iwmmxt_task_release(struct thread_info *);
 #define TIF_POLLING_NRFLAG     16
 #define TIF_USING_IWMMXT       17
 #define TIF_MEMDIE             18
+#define TIF_FREEZE             19
 
 #define _TIF_NOTIFY_RESUME     (1 << TIF_NOTIFY_RESUME)
 #define _TIF_SIGPENDING                (1 << TIF_SIGPENDING)
@@ -139,6 +155,7 @@ extern void iwmmxt_task_release(struct thread_info *);
 #define _TIF_SYSCALL_TRACE     (1 << TIF_SYSCALL_TRACE)
 #define _TIF_POLLING_NRFLAG    (1 << TIF_POLLING_NRFLAG)
 #define _TIF_USING_IWMMXT      (1 << TIF_USING_IWMMXT)
+#define _TIF_FREEZE            (1 << TIF_FREEZE)
 
 /*
  * Change these and you break ASM code in entry-common.S