2025cf9e19
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2014-2015, Intel Corporation.
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*/
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#ifndef __NVDIMM_PFN_H
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#define __NVDIMM_PFN_H
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#include <linux/types.h>
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#include <linux/mmzone.h>
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#define PFN_SIG_LEN 16
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#define PFN_SIG "NVDIMM_PFN_INFO\0"
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#define DAX_SIG "NVDIMM_DAX_INFO\0"
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struct nd_pfn_sb {
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u8 signature[PFN_SIG_LEN];
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u8 uuid[16];
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u8 parent_uuid[16];
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__le32 flags;
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__le16 version_major;
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__le16 version_minor;
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__le64 dataoff; /* relative to namespace_base + start_pad */
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__le64 npfns;
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__le32 mode;
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/* minor-version-1 additions for section alignment */
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__le32 start_pad;
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__le32 end_trunc;
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/* minor-version-2 record the base alignment of the mapping */
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__le32 align;
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u8 padding[4000];
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__le64 checksum;
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};
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#ifdef CONFIG_SPARSEMEM
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#define PFN_SECTION_ALIGN_DOWN(x) SECTION_ALIGN_DOWN(x)
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#define PFN_SECTION_ALIGN_UP(x) SECTION_ALIGN_UP(x)
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#else
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/*
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* In this case ZONE_DEVICE=n and we will disable 'pfn' device support,
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* but we still want pmem to compile.
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*/
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#define PFN_SECTION_ALIGN_DOWN(x) (x)
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#define PFN_SECTION_ALIGN_UP(x) (x)
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#endif
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#define PHYS_SECTION_ALIGN_DOWN(x) PFN_PHYS(PFN_SECTION_ALIGN_DOWN(PHYS_PFN(x)))
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#define PHYS_SECTION_ALIGN_UP(x) PFN_PHYS(PFN_SECTION_ALIGN_UP(PHYS_PFN(x)))
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#endif /* __NVDIMM_PFN_H */
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