mirror of
https://github.com/NVIDIA/open-gpu-kernel-modules.git
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140 lines
4.8 KiB
C++
140 lines
4.8 KiB
C++
/*
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* SPDX-FileCopyrightText: Copyright (c) 1993-2021 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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/******************************* DisplayPort *******************************\
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* *
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* Module: dp_internal.h *
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* RM stubs to allow unit testing. *
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* *
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\***************************************************************************/
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#ifndef INCLUDED_DP_INTERNAL_H
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#define INCLUDED_DP_INTERNAL_H
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//
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// Clients should not include this file
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// This file provides the private malloc implementation.
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//
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#include <nvtypes.h>
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#include <stddef.h> // size_t
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#include "dp_object.h"
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#include "dp_ringbuffer.h"
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static inline void dpByteToHexChar(char *output, NvU8 c)
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{
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char dig = (c>>4) & 0xF;
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output[0] = dig < 10 ? dig + '0' : dig + 'A' - 10;
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dig = c & 0xF;
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output[1] = dig < 10 ? dig + '0' : dig + 'A' - 10;
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}
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static inline void dpHexDump(char * output, unsigned outSize, NvU8 * buffer, unsigned size)
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{
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char * tail = output;
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if (outSize < size * 3 + 1)
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return;
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for (unsigned i = 0; i < size; i++)
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{
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dpByteToHexChar(tail, buffer[i]);
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tail += 2;
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*tail++ = ' ';
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}
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*tail = 0;
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}
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namespace DisplayPort
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{
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template <class T>
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inline void swap_args(T & left, T & right)
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{
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T temp = left;
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left = right;
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right = temp;
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}
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inline NvU64 divide_ceil(NvU64 a, NvU64 b)
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{
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return (a + b - 1) / b;
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}
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inline NvU64 divide_floor(NvU64 a, NvU64 b)
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{
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return a / b;
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}
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inline NvU64 axb_div_c_64(NvU64 a, NvU64 b, NvU64 c)
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{
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// NvU64 arithmetic to keep precision and avoid floats
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// a*b/c = (a/c)*b + ((a%c)*b + c/2)/c
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return ((a/c)*b + ((a%c)*b + c/2)/c);
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}
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}
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#define DP_MIN(x,y) ((x)<(y)?(x):(y))
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#define DP_MAX(x,y) ((x)<(y)?(y):(x))
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//
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// Macro to suppress unused local variable
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//
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template <class T> void dp_used(const T & /*x*/) {}
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#define DP_USED(x) dp_used(x)
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//
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// Basic debug logging facility
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//
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#if NV_DP_ASSERT_ENABLED
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#define DP_LOG(x) \
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do \
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{ \
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dpPrint x; \
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addDpLogRecord x; \
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}while (false)
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#define DP_ASSERT(x) \
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if (!(x)) \
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{ \
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addDpAssertRecord(); \
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dpAssert(#x, __FILE__, __FUNCTION__, __LINE__); \
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dpDebugBreakpoint(); \
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}
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#else
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#define DP_LOG(x)
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#define DP_ASSERT(x) \
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{ \
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DP_USED(x); \
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if (!(x)) \
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{ \
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addDpAssertRecord(); \
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} \
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}
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#endif
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#endif //INCLUDED_DP_INTERNAL_H
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