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105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/*
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* SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef NV_MEMORY_AREA_H
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#define NV_MEMORY_AREA_H
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typedef struct MemoryRange
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{
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NvU64 start;
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NvU64 size;
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} MemoryRange;
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typedef struct MemoryArea
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{
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MemoryRange *pRanges;
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NvU64 numRanges;
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} MemoryArea;
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static inline NvU64 memareaSize(MemoryArea memArea)
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{
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NvU64 size = 0;
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NvU64 idx = 0;
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for (idx = 0; idx < memArea.numRanges; idx++)
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{
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size += memArea.pRanges[idx].size;
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}
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return size;
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}
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static inline MemoryRange
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mrangeMake
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(
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NvU64 start,
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NvU64 size
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)
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{
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MemoryRange range;
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range.start = start;
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range.size = size;
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return range;
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}
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static inline NvU64
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mrangeLimit
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(
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MemoryRange a
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)
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{
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return a.start + a.size;
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}
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static inline NvBool
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mrangeIntersects
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(
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MemoryRange a,
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MemoryRange b
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)
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{
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return ((a.start >= b.start) && (a.start < mrangeLimit(b))) ||
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((b.start >= a.start) && (b.start < mrangeLimit(a)));
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}
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static inline NvBool
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mrangeContains
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(
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MemoryRange outer,
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MemoryRange inner
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)
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{
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return (inner.start >= outer.start) && (mrangeLimit(inner) <= mrangeLimit(outer));
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}
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static inline MemoryRange
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mrangeOffset
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(
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MemoryRange range,
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NvU64 amt
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)
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{
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range.start += amt;
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return range;
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}
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#endif /* NV_MEMORY_AREA_H */
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