| // 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) |
| { |
| struct resource *res = &dev_dax->region->res; |
| phys_addr_t addr; |
| |
| addr = pgoff * PAGE_SIZE + res->start; |
| if (addr >= res->start && addr <= res->end) { |
| if (addr + size - 1 <= res->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)); |
| } else |
| return addr; |
| } |
| } |
| return -1; |
| } |
