Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
40 lines
963 B
C
40 lines
963 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2016, Intel Corporation.
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*/
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#include "test/nfit_test.h"
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#include <linux/mm.h>
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#include "../../../drivers/dax/dax-private.h"
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phys_addr_t dax_pgoff_to_phys(struct dev_dax *dev_dax, pgoff_t pgoff,
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unsigned long size)
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{
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int i;
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for (i = 0; i < dev_dax->nr_range; i++) {
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struct dev_dax_range *dax_range = &dev_dax->ranges[i];
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struct range *range = &dax_range->range;
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unsigned long long pgoff_end;
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phys_addr_t addr;
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pgoff_end = dax_range->pgoff + PHYS_PFN(range_len(range)) - 1;
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if (pgoff < dax_range->pgoff || pgoff > pgoff_end)
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continue;
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addr = PFN_PHYS(pgoff - dax_range->pgoff) + range->start;
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if (addr + size - 1 <= range->end) {
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if (get_nfit_res(addr)) {
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struct page *page;
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if (dev_dax->region->align > PAGE_SIZE)
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return -1;
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page = vmalloc_to_page((void *)addr);
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return PFN_PHYS(page_to_pfn(page));
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}
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return addr;
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}
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break;
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}
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return -1;
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}
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