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authorHelge Deller <deller@parisc-linux.org>2006-03-23 17:48:15 -0500
committerKyle McMartin <kyle@hera.kernel.org>2006-03-30 12:48:45 -0500
commitb31059f7634931a06f6811247ae9217d1a833a46 (patch)
tree916b5f3b8e76f7ae1ee8b6820d344d2f5326250d
parentb9e71ac13a71bb435a4146d868080f5389bb906c (diff)
[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>
-rw-r--r--include/asm-parisc/page.h56
1 files changed, 40 insertions, 16 deletions
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index c6c9d5793070..45e02aa5bf4b 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -40,14 +40,19 @@ clear_user_page(void *page, unsigned long vaddr, struct page *pg)
40/* 40/*
41 * These are used to make use of C type-checking.. 41 * These are used to make use of C type-checking..
42 */ 42 */
43#ifdef __LP64__ 43#define STRICT_MM_TYPECHECKS
44typedef struct { unsigned long pte; } pte_t; 44#ifdef STRICT_MM_TYPECHECKS
45#else 45typedef struct { unsigned long pte;
46typedef struct { 46#if !defined(CONFIG_64BIT)
47 unsigned long pte; 47 unsigned long future_flags;
48 unsigned long flags; 48 /* XXX: it's possible to remove future_flags and change BITS_PER_PTE_ENTRY
49} pte_t; 49 to 2, but then strangely the identical 32bit kernel boots on a
50 c3000(pa20), but not any longer on a 715(pa11).
51 Still investigating... HelgeD.
52 */
50#endif 53#endif
54} pte_t; /* either 32 or 64bit */
55
51/* NOTE: even on 64 bits, these entries are __u32 because we allocate 56/* NOTE: even on 64 bits, these entries are __u32 because we allocate
52 * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */ 57 * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
53typedef struct { __u32 pmd; } pmd_t; 58typedef struct { __u32 pmd; } pmd_t;
@@ -55,25 +60,44 @@ typedef struct { __u32 pgd; } pgd_t;
55typedef struct { unsigned long pgprot; } pgprot_t; 60typedef struct { unsigned long pgprot; } pgprot_t;
56 61
57#define pte_val(x) ((x).pte) 62#define pte_val(x) ((x).pte)
58#ifdef __LP64__
59#define pte_flags(x) (*(__u32 *)&((x).pte))
60#else
61#define pte_flags(x) ((x).flags)
62#endif
63
64/* These do not work lvalues, so make sure we don't use them as such. */ 63/* These do not work lvalues, so make sure we don't use them as such. */
65#define pmd_val(x) ((x).pmd + 0) 64#define pmd_val(x) ((x).pmd + 0)
66#define pgd_val(x) ((x).pgd + 0) 65#define pgd_val(x) ((x).pgd + 0)
67#define pgprot_val(x) ((x).pgprot) 66#define pgprot_val(x) ((x).pgprot)
68 67
69#define __pmd_val_set(x,n) (x).pmd = (n)
70#define __pgd_val_set(x,n) (x).pgd = (n)
71
72#define __pte(x) ((pte_t) { (x) } ) 68#define __pte(x) ((pte_t) { (x) } )
73#define __pmd(x) ((pmd_t) { (x) } ) 69#define __pmd(x) ((pmd_t) { (x) } )
74#define __pgd(x) ((pgd_t) { (x) } ) 70#define __pgd(x) ((pgd_t) { (x) } )
75#define __pgprot(x) ((pgprot_t) { (x) } ) 71#define __pgprot(x) ((pgprot_t) { (x) } )
76 72
73#define __pmd_val_set(x,n) (x).pmd = (n)
74#define __pgd_val_set(x,n) (x).pgd = (n)
75
76#else
77/*
78 * .. while these make it easier on the compiler
79 */
80typedef unsigned long pte_t;
81typedef __u32 pmd_t;
82typedef __u32 pgd_t;
83typedef unsigned long pgprot_t;
84
85#define pte_val(x) (x)
86#define pmd_val(x) (x)
87#define pgd_val(x) (x)
88#define pgprot_val(x) (x)
89
90#define __pte(x) (x)
91#define __pmd(x) (x)
92#define __pgd(x) (x)
93#define __pgprot(x) (x)
94
95#define __pmd_val_set(x,n) (x) = (n)
96#define __pgd_val_set(x,n) (x) = (n)
97
98#endif /* STRICT_MM_TYPECHECKS */
99
100
77typedef struct __physmem_range { 101typedef struct __physmem_range {
78 unsigned long start_pfn; 102 unsigned long start_pfn;
79 unsigned long pages; /* PAGE_SIZE pages */ 103 unsigned long pages; /* PAGE_SIZE pages */