Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...

[linux-2.6] / include / asm-powerpc / processor.h

diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index d947b160949115894a0bd38caa8d6467a4f2d291..fd98ca998b4fa87cec01af7418af98c207a273eb 100644 (file)
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -43,14 +43,6 @@ extern int _chrp_type;
 /* what kind of prep workstation we are */
 extern int _prep_type;
 
-/*
- * This is used to identify the board type from a given PReP board
- * vendor. Board revision is also made available. This will be moved
- * elsewhere soon
- */
-extern unsigned char ucBoardRev;
-extern unsigned char ucBoardRevMaj, ucBoardRevMin;
-
 #endif /* CONFIG_PPC_PREP */
 
 #endif /* defined(__KERNEL__) && defined(CONFIG_PPC32) */
@@ -107,8 +99,9 @@ extern struct task_struct *last_task_used_spe;
  */
 #define TASK_SIZE_USER32 (0x0000000100000000UL - (1*PAGE_SIZE))
 
-#define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \
+#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk, TIF_32BIT) ? \
                TASK_SIZE_USER32 : TASK_SIZE_USER64)
+#define TASK_SIZE        TASK_SIZE_OF(current)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
@@ -120,6 +113,25 @@ extern struct task_struct *last_task_used_spe;
                TASK_UNMAPPED_BASE_USER32 : TASK_UNMAPPED_BASE_USER64 )
 #endif
 
+#ifdef __KERNEL__
+#ifdef __powerpc64__
+
+#define STACK_TOP_USER64 TASK_SIZE_USER64
+#define STACK_TOP_USER32 TASK_SIZE_USER32
+
+#define STACK_TOP (test_thread_flag(TIF_32BIT) ? \
+                  STACK_TOP_USER32 : STACK_TOP_USER64)
+
+#define STACK_TOP_MAX STACK_TOP_USER64
+
+#else /* __powerpc64__ */
+
+#define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX  STACK_TOP
+
+#endif /* __powerpc64__ */
+#endif /* __KERNEL__ */
+
 typedef struct {
        unsigned long seg;
 } mm_segment_t;
@@ -153,9 +165,9 @@ struct thread_struct {
        unsigned long   dabr;           /* Data address breakpoint register */
 #ifdef CONFIG_ALTIVEC
        /* Complete AltiVec register set */
-       vector128       vr[32] __attribute((aligned(16)));
+       vector128       vr[32] __attribute__((aligned(16)));
        /* AltiVec status */
-       vector128       vscr __attribute((aligned(16)));
+       vector128       vscr __attribute__((aligned(16)));
        unsigned long   vrsave;
        int             used_vr;        /* set if process has used altivec */
 #endif /* CONFIG_ALTIVEC */