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This commit is contained in:
Bernhard Stoeckner
2025-01-27 19:36:56 +01:00
parent 9d0b0414a5
commit 54d69484da
1166 changed files with 318863 additions and 182687 deletions
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34
kernel-open/nvidia/os-pci.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: Copyright (c) 1999-2020 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-FileCopyrightText: Copyright (c) 1999-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -202,3 +202,35 @@ os_enable_pci_req_atomics(
#endif
return NV_ERR_NOT_SUPPORTED;
}
void NV_API_CALL os_pci_trigger_flr(void *handle)
{
struct pci_dev *pdev = (struct pci_dev *) handle;
int ret;
ret = pci_save_state(pdev);
if (ret)
{
nv_printf(NV_DBG_ERRORS,
"NVRM: %s() PCI save state failed, Skip FLR\n", __FUNCTION__);
return;
}
#if defined(NV_PCIE_RESET_FLR_PRESENT)
// If PCI_RESET_DO_RESET is not defined in a particular kernel version
// define it as 0. Boolean value 0 will trigger a reset of the device.
#ifndef PCI_RESET_DO_RESET
#define PCI_RESET_DO_RESET 0
#endif
ret = pcie_reset_flr(pdev, PCI_RESET_DO_RESET);
if (ret)
{
nv_printf(NV_DBG_ERRORS,
"NVRM: %s() PCI FLR might have failed\n", __FUNCTION__);
}
#else
nv_printf(NV_DBG_ERRORS,
"NVRM: %s() PCI FLR not supported\n", __FUNCTION__);
#endif
pci_restore_state(pdev);
return;
}