Blackfin: convert page/tlb to asm-generic

#define	ioport_unmap(addr)

/* Pages to physical address... */

#define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)

#define page_to_bus(page)       ((page - mem_map) << PAGE_SHIFT)

#define phys_to_virt(vaddr)	((void *) (vaddr))

#ifndef _BLACKFIN_PAGE_H

#define _BLACKFIN_PAGE_H

/* PAGE_SHIFT determines the page size */

#define PAGE_SHIFT	12

#ifdef __ASSEMBLY__

#define PAGE_SIZE	(1 << PAGE_SHIFT)

#else

#define PAGE_SIZE	(1UL << PAGE_SHIFT)

#endif

#define PAGE_MASK	(~(PAGE_SIZE-1))

#include <asm/setup.h>

#ifndef __ASSEMBLY__

#define get_user_page(vaddr)		__get_free_page(GFP_KERNEL)

#define free_user_page(page, addr)	free_page(addr)

#define clear_page(page)	memset((page), 0, PAGE_SIZE)

#define copy_page(to,from)	memcpy((to), (from), PAGE_SIZE)

#define clear_user_page(page, vaddr,pg)	clear_page(page)

#define copy_user_page(to, from, vaddr,pg)	copy_page(to, from)

/*

 * These are used to make use of C type-checking..

 */

typedef struct {

	unsigned long pte;

} pte_t;

typedef struct {

	unsigned long pmd[16];

} pmd_t;

typedef struct {

	unsigned long pgd;

} pgd_t;

typedef struct {

	unsigned long pgprot;

} pgprot_t;

typedef struct page *pgtable_t;

#define pte_val(x)	((x).pte)

#define pmd_val(x)	((&x)->pmd[0])

#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) } )

extern unsigned long memory_start;

extern unsigned long memory_end;

#endif				/* !__ASSEMBLY__ */

#include <asm/page_offset.h>

#include <asm/io.h>

#define PAGE_OFFSET		(PAGE_OFFSET_RAW)

#ifndef __ASSEMBLY__

#define __pa(vaddr)		virt_to_phys((void *)(vaddr))

#define __va(paddr)		phys_to_virt((unsigned long)(paddr))

#include <asm-generic/page.h>

#define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)

#define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)

#define pfn_to_virt(pfn)	__va((pfn) << PAGE_SHIFT)

#define virt_to_page(addr)	(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))

#define page_to_virt(page)	((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)

#define VALID_PAGE(page)	((page - mem_map) < max_mapnr)

#define pfn_to_page(pfn)	virt_to_page(pfn_to_virt(pfn))

#define page_to_pfn(page)	virt_to_pfn(page_to_virt(page))

#define pfn_valid(pfn)	        ((pfn) < max_mapnr)

#define	virt_addr_valid(kaddr)	(((void *)(kaddr) >= (void *)PAGE_OFFSET) && \

				((void *)(kaddr) < (void *)memory_end))

#include <asm-generic/getorder.h>

#endif				/* __ASSEMBLY__ */

#endif				/* _BLACKFIN_PAGE_H */

#endif

#ifndef _BLACKFIN_TLBFLUSH_H

#define _BLACKFIN_TLBFLUSH_H

/*

 * Copyright (C) 2000 Lineo, David McCullough <davidm@uclinux.org>

 * Copyright (C) 2000-2002, Greg Ungerer <gerg@snapgear.com>

 */

#include <asm/setup.h>

/*

 * flush all user-space atc entries.

 */

static inline void __flush_tlb(void)

{

	BUG();

}

static inline void __flush_tlb_one(unsigned long addr)

{

	BUG();

}

#define flush_tlb() __flush_tlb()

/*

 * flush all atc entries (both kernel and user-space entries).

 */

static inline void flush_tlb_all(void)

{

	BUG();

}

static inline void flush_tlb_mm(struct mm_struct *mm)

{

	BUG();

}

static inline void flush_tlb_page(struct vm_area_struct *vma,

				  unsigned long addr)

{

	BUG();

}

static inline void flush_tlb_range(struct mm_struct *mm,

				   unsigned long start, unsigned long end)

{

	BUG();

}

static inline void flush_tlb_kernel_page(unsigned long addr)

{

	BUG();

}

#endif

#include <asm-generic/tlbflush.h>

/** Changes made by Tony Kou   Lineo Inc.    May 2001

 *

 *  Based on: include/m68knommu/ucontext.h

 */

#ifndef _BLACKFIN_UCONTEXT_H

#define _BLACKFIN_UCONTEXT_H

struct ucontext {

	unsigned long uc_flags;	/* the others are necessary */

	struct ucontext *uc_link;

	stack_t uc_stack;

	struct sigcontext uc_mcontext;

	sigset_t uc_sigmask;	/* mask last for extensibility */

};

#endif				/* _BLACKFIN_UCONTEXT_H */

#include <asm-generic/ucontext.h>