| // SPDX-License-Identifier: GPL-2.0-only | |
| /* | |
| * Copyright (c) 2016, Intel Corporation. | |
| */ | |
| #include "test/nfit_test.h" | |
| #include <linux/mm.h> | |
| #include "../../../drivers/dax/dax-private.h" | |
| phys_addr_t dax_pgoff_to_phys(struct dev_dax *dev_dax, pgoff_t pgoff, | |
| unsigned long size) | |
| { | |
| int i; | |
| for (i = 0; i < dev_dax->nr_range; i++) { | |
| struct dev_dax_range *dax_range = &dev_dax->ranges[i]; | |
| struct range *range = &dax_range->range; | |
| unsigned long long pgoff_end; | |
| phys_addr_t addr; | |
| pgoff_end = dax_range->pgoff + PHYS_PFN(range_len(range)) - 1; | |
| if (pgoff < dax_range->pgoff || pgoff > pgoff_end) | |
| continue; | |
| addr = PFN_PHYS(pgoff - dax_range->pgoff) + range->start; | |
| if (addr + size - 1 <= range->end) { | |
| if (get_nfit_res(addr)) { | |
| struct page *page; | |
| if (dev_dax->region->align > PAGE_SIZE) | |
| return -1; | |
| page = vmalloc_to_page((void *)addr); | |
| return PFN_PHYS(page_to_pfn(page)); | |
| } | |
| return addr; | |
| } | |
| break; | |
| } | |
| return -1; | |
| } |