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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (c) 2016, Intel Corporation.4 */5#include "test/nfit_test.h"6#include <linux/mm.h>7#include "../../../drivers/dax/dax-private.h"8 9phys_addr_t dax_pgoff_to_phys(struct dev_dax *dev_dax, pgoff_t pgoff,10 unsigned long size)11{12 int i;13 14 for (i = 0; i < dev_dax->nr_range; i++) {15 struct dev_dax_range *dax_range = &dev_dax->ranges[i];16 struct range *range = &dax_range->range;17 unsigned long long pgoff_end;18 phys_addr_t addr;19 20 pgoff_end = dax_range->pgoff + PHYS_PFN(range_len(range)) - 1;21 if (pgoff < dax_range->pgoff || pgoff > pgoff_end)22 continue;23 addr = PFN_PHYS(pgoff - dax_range->pgoff) + range->start;24 if (addr + size - 1 <= range->end) {25 if (get_nfit_res(addr)) {26 struct page *page;27 28 if (dev_dax->region->align > PAGE_SIZE)29 return -1;30 31 page = vmalloc_to_page((void *)addr);32 return PFN_PHYS(page_to_pfn(page));33 }34 return addr;35 }36 break;37 }38 return -1;39}40