88be351593
Add code to the 54xx ColdFire CPU init to setup memory ready for the m68k paged memory start up. Some of the RAM variables that were specific to the non-mmu code paths now need to be used during this setup, so when CONFIG_MMU is enabled. Move these out of page_no.h and into page.h. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
#ifndef _M68K_PAGE_NO_H
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#define _M68K_PAGE_NO_H
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#ifndef __ASSEMBLY__
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extern unsigned long memory_start;
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extern unsigned long memory_end;
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#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
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#define free_user_page(page, addr) free_page(addr)
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#define clear_page(page) memset((page), 0, PAGE_SIZE)
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#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
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#define clear_user_page(page, vaddr, pg) clear_page(page)
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#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
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#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
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alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
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#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
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#define __pa(vaddr) ((unsigned long)(vaddr))
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#define __va(paddr) ((void *)(paddr))
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#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
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#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
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#define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
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#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
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#define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn))
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#define page_to_pfn(page) virt_to_pfn(page_to_virt(page))
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#define pfn_valid(pfn) ((pfn) < max_mapnr)
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#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
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((void *)(kaddr) < (void *)memory_end))
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#endif /* __ASSEMBLY__ */
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#endif /* _M68K_PAGE_NO_H */
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