m68k: Provide __phys_to_pfn() and __pfn_to_phys()
The defconfig build of m68k was failing with the error: implicit declaration of function '__pfn_to_phys' Other architectures have added <asm/memory.h>, but if we do so here then we will also get redeclaration of some other functions. So it is better to copy these macros into page.h. Fixes: 0a3c3bf11240 ("x86, mm: introduce vmem_altmap to augment vmemmap_populate()") Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Cc: Dan Williams <dan.j.williams@intel.com> Reported-by: Guenter Roeck <linux@roeck-us.net> (m68knommu) [geert: Apply to page.h instead of page_mm.h to cover nommu, reword] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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@ -48,6 +48,9 @@ extern unsigned long _ramend;
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#include <asm/page_no.h>
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#endif
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#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
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#define __pfn_to_phys(pfn) PFN_PHYS(pfn)
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#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
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VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
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