require '_h2ph_pre.ph';

no warnings 'redefine';

unless(defined(&__ASM_MEMORY_MODEL_H)) {
    eval 'sub __ASM_MEMORY_MODEL_H () {1;}' unless defined(&__ASM_MEMORY_MODEL_H);
    if(defined(&__KERNEL__)) {
	unless(defined(&__ASSEMBLY__)) {
	    if(defined( &CONFIG_FLATMEM)) {
		unless(defined(&ARCH_PFN_OFFSET)) {
		    eval 'sub ARCH_PFN_OFFSET () {(0);}' unless defined(&ARCH_PFN_OFFSET);
		}
	    }
 elsif(defined( &CONFIG_DISCONTIGMEM)) {
		unless(defined(&arch_pfn_to_nid)) {
		    eval 'sub arch_pfn_to_nid {
		        my($pfn) = @_;
    			eval q( &pfn_to_nid($pfn));
		    }' unless defined(&arch_pfn_to_nid);
		}
		unless(defined(&arch_local_page_offset)) {
		    eval 'sub arch_local_page_offset {
		        my($pfn, $nid) = @_;
    			eval q((($pfn) -  &NODE_DATA($nid)-> &node_start_pfn));
		    }' unless defined(&arch_local_page_offset);
		}
	    }
	    if(defined( &CONFIG_FLATMEM)) {
		eval 'sub __pfn_to_page {
		    my($pfn) = @_;
    		    eval q(( &mem_map + (($pfn) -  &ARCH_PFN_OFFSET)));
		}' unless defined(&__pfn_to_page);
		eval 'sub __page_to_pfn {
		    my($page) = @_;
    		    eval q(((($page) -  &mem_map) +  &ARCH_PFN_OFFSET));
		}' unless defined(&__page_to_pfn);
	    }
 elsif(defined( &CONFIG_DISCONTIGMEM)) {
		eval 'sub __pfn_to_page {
		    my($pfn) = @_;
    		    eval q(({ \'unsigned long __pfn\' = ($pfn); \'unsigned long __nid\' =  &arch_pfn_to_nid($pfn);  &NODE_DATA( &__nid)-> &node_mem_map +  &arch_local_page_offset( &__pfn,  &__nid);}));
		}' unless defined(&__pfn_to_page);
		eval 'sub __page_to_pfn {
		    my($pg) = @_;
    		    eval q(({ 1; 1; ( &__pg -  ($__pgdat->{node_mem_map})) +  ($__pgdat->{node_start_pfn}); }));
		}' unless defined(&__page_to_pfn);
	    }
 elsif(defined( &CONFIG_SPARSEMEM)) {
		eval 'sub __page_to_pfn {
		    my($pg) = @_;
    		    eval q(({ 1; \'int\'  &__sec =  &page_to_section( &__pg);  &__pg -  &__section_mem_map_addr( &__nr_to_section( &__sec)); }));
		}' unless defined(&__page_to_pfn);
		eval 'sub __pfn_to_page {
		    my($pfn) = @_;
    		    eval q(({ \'unsigned long __pfn\' = ($pfn); 1;  &__section_mem_map_addr( &__sec) +  &__pfn; }));
		}' unless defined(&__pfn_to_page);
	    }
	    if(defined(&CONFIG_OUT_OF_LINE_PFN_TO_PAGE)) {
	    } else {
		eval 'sub page_to_pfn () { &__page_to_pfn;}' unless defined(&page_to_pfn);
		eval 'sub pfn_to_page () { &__pfn_to_page;}' unless defined(&pfn_to_page);
	    }
	}
    }
}
1;