[ P4 control ] 0xE0000000
*/
-
/* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT 12
+#if defined(CONFIG_PAGE_SIZE_4KB)
+# define PAGE_SHIFT 12
+#elif defined(CONFIG_PAGE_SIZE_8KB)
+# define PAGE_SHIFT 13
+#elif defined(CONFIG_PAGE_SIZE_64KB)
+# define PAGE_SHIFT 16
+#else
+# error "Bogus kernel page size?"
+#endif
+
+#ifdef __ASSEMBLY__
+#define PAGE_SIZE (1 << PAGE_SHIFT)
+#else
#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#endif
+
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PTE_MASK PAGE_MASK
#if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
#define HPAGE_SHIFT 16
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_256K)
+#define HPAGE_SHIFT 18
#elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
#define HPAGE_SHIFT 20
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
+#define HPAGE_SHIFT 22
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64MB)
+#define HPAGE_SHIFT 26
#endif
#ifdef CONFIG_HUGETLB_PAGE
extern void (*clear_page)(void *to);
extern void (*copy_page)(void *to, void *from);
+extern unsigned long shm_align_mask;
+
#ifdef CONFIG_MMU
extern void clear_page_slow(void *to);
extern void copy_page_slow(void *to, void *from);
/*
* These are used to make use of C type-checking..
*/
-typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pgd; } pgd_t;
+#ifdef CONFIG_X2TLB
+typedef struct { unsigned long pte_low, pte_high; } pte_t;
+typedef struct { unsigned long long pgprot; } pgprot_t;
+#define pte_val(x) \
+ ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
+#define __pte(x) \
+ ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
+#else
+typedef struct { unsigned long pte_low; } pte_t;
typedef struct { unsigned long pgprot; } pgprot_t;
+#define pte_val(x) ((x).pte_low)
+#define __pte(x) ((pte_t) { (x) } )
+#endif
+
+typedef struct { unsigned long pgd; } pgd_t;
-#define pte_val(x) ((x).pte)
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)
-#define __pte(x) ((pte_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
#include <asm-generic/memory_model.h>
#include <asm-generic/page.h>
+/* vDSO support */
+#ifdef CONFIG_VSYSCALL
+#define __HAVE_ARCH_GATE_AREA
+#endif
+
#endif /* __KERNEL__ */
#endif /* __ASM_SH_PAGE_H */