a6dbe3721e
per Intel policy to include file commit date using git cmd below. The policy does not apply to non-Intel (C) notices. git log --follow -C90% --format=%ad --date default <file> | tail -1 and then pull just the 4 digit year from the result. Intel copyrights were not added to files where Intel either had no contribution ot the contribution lacked substance (ie license header updates, formatting changes, etc). Contribution date used "--follow -C95%" to get the most accurate date. Note that several files in this patch didn't end the license/(c) block with a blank comment line so these were added as the vast majority of files do have this last blank line. Simply there for consistency. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Community-CI: Mellanox Build Bot
44 lines
941 B
C
44 lines
941 B
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (C) 2019 Intel Corporation.
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* All rights reserved.
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*/
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#ifndef SPDK_MEMORY_H
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#define SPDK_MEMORY_H
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#include "spdk/stdinc.h"
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#ifndef __linux__
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#define VFIO_ENABLED 0
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#else
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#include <linux/version.h>
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)
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#define VFIO_ENABLED 1
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#else
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#define VFIO_ENABLED 0
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#endif
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define SHIFT_2MB 21 /* (1 << 21) == 2MB */
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#define VALUE_2MB (1ULL << SHIFT_2MB)
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#define MASK_2MB (VALUE_2MB - 1)
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#define SHIFT_4KB 12 /* (1 << 12) == 4KB */
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#define VALUE_4KB (1ULL << SHIFT_4KB)
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#define MASK_4KB (VALUE_4KB - 1)
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#define _2MB_OFFSET(ptr) (((uintptr_t)(ptr)) & MASK_2MB)
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#define _2MB_PAGE(ptr) FLOOR_2MB((uintptr_t)(ptr))
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#define FLOOR_2MB(x) (((uintptr_t)(x)) & ~MASK_2MB)
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#define CEIL_2MB(x) FLOOR_2MB(((uintptr_t)(x)) + VALUE_2MB - 1)
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPDK_MEMORY_H */
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