[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>

5 files changed, 13 insertions, 10 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));
                 }
         }
diff --git a/include/asm-sparc64/cacheflush.h b/include/asm-sparc64/cacheflush.h
index 51b26e81d828..ededd2659eab 100644
--- a/include/asm-sparc64/cacheflush.h
+++ b/include/asm-sparc64/cacheflush.h
@@ -4,13 +4,6 @@
 #include <linux/config.h>
 #include <asm/page.h>
 
-/* Flushing for D-cache alias handling is only needed if
- * the page size is smaller than 16K.
- */
-#if PAGE_SHIFT < 14
-#define DCACHE_ALIASING_POSSIBLE
-#endif
-
 #ifndef __ASSEMBLY__
 
 #include <linux/mm.h>
diff --git a/include/asm-sparc64/ide.h b/include/asm-sparc64/ide.h
index 4c1098474c73..c393f815b0be 100644
--- a/include/asm-sparc64/ide.h
+++ b/include/asm-sparc64/ide.h
@@ -15,6 +15,7 @@
 #include <asm/io.h>
 #include <asm/spitfire.h>
 #include <asm/cacheflush.h>
+#include <asm/page.h>
 
 #ifndef MAX_HWIFS
 # ifdef CONFIG_BLK_DEV_IDEPCI
diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h
index c9f8ef208ea5..7f8d764abc47 100644
--- a/include/asm-sparc64/page.h
+++ b/include/asm-sparc64/page.h
@@ -21,6 +21,13 @@
 #define PAGE_SIZE    (_AC(1,UL) << PAGE_SHIFT)
 #define PAGE_MASK    (~(PAGE_SIZE-1))
 
+/* Flushing for D-cache alias handling is only needed if
+ * the page size is smaller than 16K.
+ */
+#if PAGE_SHIFT < 14
+#define DCACHE_ALIASING_POSSIBLE
+#endif
+
 #ifdef __KERNEL__
 
 #ifndef __ASSEMBLY__
diff --git a/include/asm-sparc64/pgalloc.h b/include/asm-sparc64/pgalloc.h
index b9b1914aae63..a96067cca963 100644
--- a/include/asm-sparc64/pgalloc.h
+++ b/include/asm-sparc64/pgalloc.h
@@ -10,6 +10,7 @@
 #include <asm/spitfire.h>
 #include <asm/cpudata.h>
 #include <asm/cacheflush.h>
+#include <asm/page.h>
 
 /* Page table allocation/freeing. */
 #ifdef CONFIG_SMP