[SPARC64]: Move DCACHE_ALIASING_POSSIBLE define to asm/page.h

This showed that arch/sparc64/kernel/ptrace.c was not getting
the define properly, and thus the code protected by this ifdef
was never actually compiled before.  So fix that too.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 23ad839d113f..5efbff90d668 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -30,6 +30,7 @@
 #include <asm/psrcompat.h>
 #include <asm/visasm.h>
 #include <asm/spitfire.h>
+#include <asm/page.h>
 
 /* Returning from ptrace is a bit tricky because the syscall return
  * low level code assumes any value returned which is negative and
@@ -128,20 +129,20 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
          * is mapped to in the user's address space, we can skip the
          * D-cache flush.
          */
-        if ((uaddr ^ kaddr) & (1UL << 13)) {
+        if ((uaddr ^ (unsigned long) kaddr) & (1UL << 13)) {
                 unsigned long start = __pa(kaddr);
                 unsigned long end = start + len;
 
                 if (tlb_type == spitfire) {
                         for (; start < end; start += 32)
-                                spitfire_put_dcache_tag(va & 0x3fe0, 0x0);
+                                spitfire_put_dcache_tag(start & 0x3fe0, 0x0);
                 } else {
                         for (; start < end; start += 32)
                                 __asm__ __volatile__(
                                         "stxa %%g0, [%0] %1\n\t"
                                         "membar #Sync"
                                         : /* no outputs */
-                                        : "r" (va),
+                                        : "r" (start),
                                         "i" (ASI_DCACHE_INVALIDATE));
                 }
         }