Merge tag 'nmiforkvm' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux...

[linux-2.6-microblaze.git] / arch / s390 / include / asm / processor.h

diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index e498871..72c7b88 100644 (file)
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -20,6 +20,7 @@
 #define CIF_FPU                        4       /* restore FPU registers */
 #define CIF_IGNORE_IRQ         5       /* ignore interrupt (for udelay) */
 #define CIF_ENABLED_WAIT       6       /* in enabled wait state */
+#define CIF_MCCK_GUEST         7       /* machine check happening in guest */
 
 #define _CIF_MCCK_PENDING      _BITUL(CIF_MCCK_PENDING)
 #define _CIF_ASCE_PRIMARY      _BITUL(CIF_ASCE_PRIMARY)
@@ -28,6 +29,7 @@
 #define _CIF_FPU               _BITUL(CIF_FPU)
 #define _CIF_IGNORE_IRQ                _BITUL(CIF_IGNORE_IRQ)
 #define _CIF_ENABLED_WAIT      _BITUL(CIF_ENABLED_WAIT)
+#define _CIF_MCCK_GUEST                _BITUL(CIF_MCCK_GUEST)
 
 #ifndef __ASSEMBLY__
 
@@ -91,14 +93,15 @@ extern void execve_tail(void);
  * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
  */
 
-#define TASK_SIZE_OF(tsk)      ((tsk)->mm ? \
-                                (tsk)->mm->context.asce_limit : TASK_MAX_SIZE)
+#define TASK_SIZE_OF(tsk)      (test_tsk_thread_flag(tsk, TIF_31BIT) ? \
+                                       (1UL << 31) : -PAGE_SIZE)
 #define TASK_UNMAPPED_BASE     (test_thread_flag(TIF_31BIT) ? \
                                        (1UL << 30) : (1UL << 41))
 #define TASK_SIZE              TASK_SIZE_OF(current)
-#define TASK_MAX_SIZE          (1UL << 53)
+#define TASK_SIZE_MAX          (-PAGE_SIZE)
 
-#define STACK_TOP              (1UL << (test_thread_flag(TIF_31BIT) ? 31:42))
+#define STACK_TOP              (test_thread_flag(TIF_31BIT) ? \
+                                       (1UL << 31) : (1UL << 42))
 #define STACK_TOP_MAX          (1UL << 42)
 
 #define HAVE_ARCH_PICK_MMAP_LAYOUT
@@ -135,6 +138,8 @@ struct thread_struct {
        struct list_head list;
        /* cpu runtime instrumentation */
        struct runtime_instr_cb *ri_cb;
+       struct gs_cb *gs_cb;            /* Current guarded storage cb */
+       struct gs_cb *gs_bc_cb;         /* Broadcast guarded storage cb */
        unsigned char trap_tdb[256];    /* Transaction abort diagnose block */
        /*
         * Warning: 'fpu' is dynamically-sized. It *MUST* be at
@@ -215,6 +220,9 @@ void show_cacheinfo(struct seq_file *m);
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
 
+/* Free guarded storage control block for current */
+void exit_thread_gs(void);
+
 /*
  * Return saved PC of a blocked thread.
  */