55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/*
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* Copyright (c) 2020 Institute of Parallel And Distributed Systems (IPADS), Shanghai Jiao Tong University (SJTU)
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* OS-Lab-2020 (i.e., ChCore) is licensed under the Mulan PSL v1.
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* You can use this software according to the terms and conditions of the Mulan PSL v1.
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* You may obtain a copy of Mulan PSL v1 at:
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* http://license.coscl.org.cn/MulanPSL
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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* PURPOSE.
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* See the Mulan PSL v1 for more details.
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*/
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#pragma once
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#include <lib/type.h>
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#define le16_to_cpu(x) (x)
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#define le32_to_cpu(x) (x)
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#define le64_to_cpu(x) (x)
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#define be16_to_cpu(x) ((((x) & 0xff) << 8) | (((x) >> 8) & 0xff))
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#define be32_to_cpu(x) ((be16_to_cpu((x)) << 16) | (be16_to_cpu((x) >> 16)))
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#define be64_to_cpu(x) ((be32_to_cpu((x)) << 32) | (be32_to_cpu((x) >> 32)))
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#define be128ptr_to_cpu_hi(x) (be64_to_cpu(*(u64 *)(x)))
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#define be128ptr_to_cpu_lo(x) (be64_to_cpu(*((u64 *)(x) + 1)))
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#define be96ptr_to_cpu_hi(x) (be32_to_cpu(*(u32 *)(x)))
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#define be96ptr_to_cpu_lo(x) (((u64)(be32_to_cpu(*((u32 *)(x) + 1)))) << 32 | \
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(be32_to_cpu(*((u32 *)(x)) + 2)))
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#define beXptr_to_cpu(bits, n) \
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({ \
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(bits == 32) ? be32_to_cpu(*(u32 *)(n)) : \
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(bits == 64) ? be64_to_cpu(*(u64 *)(n)) : \
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({ BUG("invalid X"); 0; }); \
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})
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#define set_beXptr_to_cpu(bits, n, hi, lo) do { \
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if (bits > 64) { \
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if (bits == 96) { \
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lo = be96ptr_to_cpu_lo(n); \
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hi = be96ptr_to_cpu_hi(n); \
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} else if (bits == 128) { \
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lo = be128ptr_to_cpu_lo(n); \
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hi = be128ptr_to_cpu_hi(n); \
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} else { \
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BUG("invalid X"); \
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} \
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} else { \
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lo = 0; \
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hi = beXptr_to_cpu(bits, n); \
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} \
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} while (0)
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