X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-sh%2Fpage.h;h=b8ec4a10d05eb521f0d861fe2d68cdf3dfdff328;hb=refs%2Fheads%2Fvserver;hp=edd29349b5956be0c84429348776b7d41e72442c;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h
index edd29349b..b8ec4a10d 100644
--- a/include/asm-sh/page.h
+++ b/include/asm-sh/page.h
@@ -13,18 +13,36 @@
    [ 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
@@ -39,35 +57,50 @@
 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_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)
+#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);
 extern void __clear_user_page(void *to, void *orig_to);
 extern void __copy_user_page(void *to, void *from, void *orig_to);
+#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)
 #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) } )
 
@@ -86,28 +119,19 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #define __MEMORY_START		CONFIG_MEMORY_START
 #define __MEMORY_SIZE		CONFIG_MEMORY_SIZE
-#ifdef CONFIG_DISCONTIGMEM
-/* Just for HP690, for now.. */
-#define __MEMORY_START_2ND	(__MEMORY_START+0x02000000)
-#define __MEMORY_SIZE_2ND	0x001000000 /* 16MB */
-#endif
 
-#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))
 
 #define MAP_NR(addr)		(((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)
 
-#ifndef CONFIG_DISCONTIGMEM
 #define phys_to_page(phys)	(mem_map + (((phys)-__MEMORY_START) >> PAGE_SHIFT))
 #define page_to_phys(page)	(((page - mem_map) << PAGE_SHIFT) + __MEMORY_START)
-#endif
 
 /* 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)
@@ -115,24 +139,15 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-#ifndef __ASSEMBLY__
-
-/* Pure 2^n version of get_order */
-static __inline__ int get_order(unsigned long size)
-{
-	int order;
-
-	size = (size-1) >> (PAGE_SHIFT-1);
-	order = -1;
-	do {
-		size >>= 1;
-		order++;
-	} while (size);
-	return order;
-}
+#include <asm-generic/memory_model.h>
+#include <asm-generic/page.h>
 
+/* vDSO support */
+#ifdef CONFIG_VSYSCALL
+#define __HAVE_ARCH_GATE_AREA
 #endif
 
-#endif /* __KERNEL__ */
+#define devmem_is_allowed(x) 1
 
+#endif /* __KERNEL__ */
 #endif /* __ASM_SH_PAGE_H */