[SPARC64]: Set STRICT_MM_TYPECHECKS and kill ctxd/iopgprot.

There is no code generation penalty on sparc64 for
STRICT_MM_TYPECHECKS as is present on sparc32.
ctxd and iopgprot are totally unused types
Signed-off-by: David S. Miller <davem@davemloft.net>

include/asm-sparc64/page.h

@@ -21,11 +21,14 @@ extern void clear_user_page(void *addr, unsigned long vaddr, struct page *page);
 #define copy_page(X,Y)	memcpy((void *)(X), (void *)(Y), PAGE_SIZE)
 extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage);
 
-/* GROSS, defining this makes gcc pass these types as aggregates,
- * and thus on the stack, turn this crap off... -DaveM
+/* Unlike sparc32, sparc64's parameter passing API is more
+ * sane in that structures which as small enough are passed
+ * in registers instead of on the stack.  Thus, setting
+ * STRICT_MM_TYPECHECKS does not generate worse code so
+ * let's enable it to get the type checking.
  */
 
-/* #define STRICT_MM_TYPECHECKS */
+#define STRICT_MM_TYPECHECKS
 
 #ifdef STRICT_MM_TYPECHECKS
 /* These are used to make use of C type-checking.. */
@@ -33,25 +36,19 @@ typedef struct { unsigned long pte; } pte_t;
 typedef struct { unsigned long iopte; } iopte_t;
 typedef struct { unsigned int pmd; } pmd_t;
 typedef struct { unsigned int pgd; } pgd_t;
-typedef struct { unsigned long ctxd; } ctxd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
-typedef struct { unsigned long iopgprot; } iopgprot_t;
 
 #define pte_val(x)	((x).pte)
 #define iopte_val(x)	((x).iopte)
 #define pmd_val(x)      ((x).pmd)
 #define pgd_val(x)	((x).pgd)
-#define ctxd_val(x)	((x).ctxd)
 #define pgprot_val(x)	((x).pgprot)
-#define iopgprot_val(x)	((x).iopgprot)
 
 #define __pte(x)	((pte_t) { (x) } )
 #define __iopte(x)	((iopte_t) { (x) } )
 #define __pmd(x)        ((pmd_t) { (x) } )
 #define __pgd(x)	((pgd_t) { (x) } )
-#define __ctxd(x)	((ctxd_t) { (x) } )
 #define __pgprot(x)	((pgprot_t) { (x) } )
-#define __iopgprot(x)	((iopgprot_t) { (x) } )
 
 #else
 /* .. while these make it easier on the compiler */
@@ -59,25 +56,19 @@ typedef unsigned long pte_t;
 typedef unsigned long iopte_t;
 typedef unsigned int pmd_t;
 typedef unsigned int pgd_t;
-typedef unsigned long ctxd_t;
 typedef unsigned long pgprot_t;
-typedef unsigned long iopgprot_t;
 
 #define pte_val(x)	(x)
 #define iopte_val(x)	(x)
 #define pmd_val(x)      (x)
 #define pgd_val(x)	(x)
-#define ctxd_val(x)	(x)
 #define pgprot_val(x)	(x)
-#define iopgprot_val(x)	(x)
 
 #define __pte(x)	(x)
 #define __iopte(x)	(x)
 #define __pmd(x)        (x)
 #define __pgd(x)	(x)
-#define __ctxd(x)	(x)
 #define __pgprot(x)	(x)
-#define __iopgprot(x)	(x)
 
 #endif /* (STRICT_MM_TYPECHECKS) */