mirror of
https://github.com/NVIDIA/open-gpu-kernel-modules.git
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84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/*
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* SPDX-FileCopyrightText: Copyright (c) 2020-2025 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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#if defined(NV_LINUX_NVHOST_H_PRESENT) && defined(NV_LINUX_HOST1X_NEXT_H_PRESENT)
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#include <linux/host1x-next.h>
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#include <linux/nvhost.h>
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#if defined(NV_LINUX_NVHOST_T194_H_PRESENT)
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#include <linux/nvhost_t194.h>
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#endif
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NV_STATUS nv_get_syncpoint_aperture
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(
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NvU32 syncpointId,
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NvU64 *physAddr,
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NvU64 *limit,
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NvU32 *offset
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)
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{
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struct platform_device *host1x_pdev;
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phys_addr_t base;
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struct host1x *host1x;
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NvU32 stride;
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NvU32 num_syncpts;
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NvS32 ret;
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host1x_pdev = nvhost_get_default_device();
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if (host1x_pdev == NULL)
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{
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return NV_ERR_INVALID_DEVICE;
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}
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host1x = platform_get_drvdata(host1x_pdev);
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ret = host1x_syncpt_get_shim_info(host1x, &base, &stride, &num_syncpts);
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if ((ret != 0) || (syncpointId >= num_syncpts))
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{
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return NV_ERR_INVALID_DATA;
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}
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*physAddr = base;
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*limit = stride;
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*offset = stride * syncpointId;
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return NV_OK;
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}
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#else
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NV_STATUS nv_get_syncpoint_aperture
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(
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NvU32 syncpointId,
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NvU64 *physAddr,
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NvU64 *limit,
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NvU32 *offset
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)
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{
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return NV_ERR_NOT_SUPPORTED;
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}
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#endif
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