[ P4 control ] 0xE0000000
*/
-#include <linux/config.h>
-
/* 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
#define HPAGE_SIZE (1UL << HPAGE_SHIFT)
#define HPAGE_MASK (~(HPAGE_SIZE-1))
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT)
-#define ARCH_HAS_SETCLEAR_HUGE_PTE
#endif
#ifdef __KERNEL__
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);
+#else
+extern void clear_page_nommu(void *to);
+extern void copy_page_nommu(void *to, void *from);
+#endif
-#if defined(CONFIG_SH7705_CACHE_32KB) && defined(CONFIG_MMU)
+#if defined(CONFIG_MMU) && (defined(CONFIG_CPU_SH4) || \
+ defined(CONFIG_SH7705_CACHE_32KB))
struct page;
extern void clear_user_page(void *to, unsigned long address, struct page *pg);
extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg);
#elif defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH3) || !defined(CONFIG_MMU)
#define clear_user_page(page, vaddr, pg) clear_page(page)
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
-#elif defined(CONFIG_CPU_SH4)
-struct page;
-extern void clear_user_page(void *to, unsigned long address, struct page *pg);
-extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg);
-extern void __clear_user_page(void *to, void *orig_to);
-extern void __copy_user_page(void *to, void *from, void *orig_to);
#endif
/*
* These are used to make use of C type-checking..
*/
-typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pmd; } pmd_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 pmd_val(x) ((x).pmd)
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)
-#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 __MEMORY_START CONFIG_MEMORY_START
#define __MEMORY_SIZE CONFIG_MEMORY_SIZE
-#define PAGE_OFFSET (0x80000000UL)
+#define PAGE_OFFSET CONFIG_PAGE_OFFSET
#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET)
#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
/* PFN start number, because of __MEMORY_START */
#define PFN_START (__MEMORY_START >> PAGE_SHIFT)
-
-#define pfn_to_page(pfn) (mem_map + (pfn) - PFN_START)
-#define page_to_pfn(page) ((unsigned long)((page) - mem_map) + PFN_START)
+#define ARCH_PFN_OFFSET (PFN_START)
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define pfn_valid(pfn) (((pfn) - PFN_START) < max_mapnr)
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
-#endif /* __KERNEL__ */
-
+#include <asm-generic/memory_model.h>
#include <asm-generic/page.h>
+/* vDSO support */
+#ifdef CONFIG_VSYSCALL
+#define __HAVE_ARCH_GATE_AREA
+#endif
+
+#define devmem_is_allowed(x) 1
+
+#endif /* __KERNEL__ */
#endif /* __ASM_SH_PAGE_H */