[PARISC] Add STRICT_MM_TYPECHECKS
Add STRICT_MM_TYPECHECKS to page.h as other architectures do.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index c6c9d57..45e02aa 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -40,14 +40,19 @@
/*
* These are used to make use of C type-checking..
*/
-#ifdef __LP64__
-typedef struct { unsigned long pte; } pte_t;
-#else
-typedef struct {
- unsigned long pte;
- unsigned long flags;
-} pte_t;
+#define STRICT_MM_TYPECHECKS
+#ifdef STRICT_MM_TYPECHECKS
+typedef struct { unsigned long pte;
+#if !defined(CONFIG_64BIT)
+ unsigned long future_flags;
+ /* XXX: it's possible to remove future_flags and change BITS_PER_PTE_ENTRY
+ to 2, but then strangely the identical 32bit kernel boots on a
+ c3000(pa20), but not any longer on a 715(pa11).
+ Still investigating... HelgeD.
+ */
#endif
+} pte_t; /* either 32 or 64bit */
+
/* NOTE: even on 64 bits, these entries are __u32 because we allocate
* the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
typedef struct { __u32 pmd; } pmd_t;
@@ -55,25 +60,44 @@
typedef struct { unsigned long pgprot; } pgprot_t;
#define pte_val(x) ((x).pte)
-#ifdef __LP64__
-#define pte_flags(x) (*(__u32 *)&((x).pte))
-#else
-#define pte_flags(x) ((x).flags)
-#endif
-
/* These do not work lvalues, so make sure we don't use them as such. */
#define pmd_val(x) ((x).pmd + 0)
#define pgd_val(x) ((x).pgd + 0)
#define pgprot_val(x) ((x).pgprot)
-#define __pmd_val_set(x,n) (x).pmd = (n)
-#define __pgd_val_set(x,n) (x).pgd = (n)
-
#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
+#define __pmd_val_set(x,n) (x).pmd = (n)
+#define __pgd_val_set(x,n) (x).pgd = (n)
+
+#else
+/*
+ * .. while these make it easier on the compiler
+ */
+typedef unsigned long pte_t;
+typedef __u32 pmd_t;
+typedef __u32 pgd_t;
+typedef unsigned long pgprot_t;
+
+#define pte_val(x) (x)
+#define pmd_val(x) (x)
+#define pgd_val(x) (x)
+#define pgprot_val(x) (x)
+
+#define __pte(x) (x)
+#define __pmd(x) (x)
+#define __pgd(x) (x)
+#define __pgprot(x) (x)
+
+#define __pmd_val_set(x,n) (x) = (n)
+#define __pgd_val_set(x,n) (x) = (n)
+
+#endif /* STRICT_MM_TYPECHECKS */
+
+
typedef struct __physmem_range {
unsigned long start_pfn;
unsigned long pages; /* PAGE_SIZE pages */