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https://github.com/NVIDIA/open-gpu-kernel-modules.git
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79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
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* SPDX-FileCopyrightText: Copyright (c) 1999-2011 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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#define __NO_VERSION__
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#include "os-interface.h"
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#include "nv-linux.h"
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void* NV_API_CALL os_map_user_space(
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NvU64 start,
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NvU64 size_bytes,
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NvU32 mode,
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NvU32 protect,
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void **priv_data
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)
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{
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return (void *)(NvUPtr)start;
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}
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void NV_API_CALL os_unmap_user_space(
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void *address,
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NvU64 size,
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void *priv_data
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)
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{
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}
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NV_STATUS NV_API_CALL os_match_mmap_offset(
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void *pAllocPrivate,
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NvU64 offset,
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NvU64 *pPageIndex
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)
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{
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nv_alloc_t *at = pAllocPrivate;
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NvU64 i;
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for (i = 0; i < at->num_pages; i++)
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{
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if (at->flags.contig)
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{
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if (offset == (at->page_table[0]->phys_addr + (i * PAGE_SIZE)))
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{
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*pPageIndex = i;
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return NV_OK;
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}
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}
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else
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{
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if (offset == at->page_table[i]->phys_addr)
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{
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*pPageIndex = i;
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return NV_OK;
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}
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}
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}
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return NV_ERR_OBJECT_NOT_FOUND;
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}
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