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This commit is contained in:
Maneet Singh
2025-06-17 11:52:54 -07:00
parent d5cb404571
commit 443ace971f
36 changed files with 302 additions and 112 deletions
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29
kernel-open/nvidia/nv-caps.c
View File

@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: Copyright (c) 2019-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-FileCopyrightText: Copyright (c) 2019-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -582,6 +582,9 @@ err:
void NV_API_CALL nv_cap_close_fd(int fd)
{
#if NV_FILESYSTEM_ACCESS_AVAILABLE
struct file *file;
NvBool is_nv_cap_fd;
if (fd == -1)
{
return;
@@ -600,6 +603,30 @@ void NV_API_CALL nv_cap_close_fd(int fd)
return;
}
file = fget(fd);
if (file == NULL)
{
task_unlock(current);
return;
}
/* Make sure the fd belongs to the nv-cap-drv */
is_nv_cap_fd = (file->f_op == &g_nv_cap_drv_fops);
fput(file);
/*
* In some cases, we may be in shutdown path and execute
* in context of unrelated process. In that case we should
* not access any 'current' state, but instead let kernel
* clean up capability files on its own.
*/
if (!is_nv_cap_fd)
{
task_unlock(current);
return;
}
/*
* From v4.17-rc1 (to v5.10.8) kernels have stopped exporting sys_close(fd)
* and started exporting __close_fd, as of this commit:

2
kernel-open/nvidia/nvidia.Kbuild
View File

@@ -257,7 +257,7 @@ NV_CONFTEST_TYPE_COMPILE_TESTS += add_memory_driver_managed_has_mhp_flags_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += num_registered_fb
NV_CONFTEST_TYPE_COMPILE_TESTS += pci_driver_has_driver_managed_dma
NV_CONFTEST_TYPE_COMPILE_TESTS += vm_area_struct_has_const_vm_flags
NV_CONFTEST_TYPE_COMPILE_TESTS += memory_failure_has_trapno_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += memory_failure_queue_has_trapno_arg
NV_CONFTEST_TYPE_COMPILE_TESTS += foll_longterm_present
NV_CONFTEST_TYPE_COMPILE_TESTS += bus_type_has_iommu_ops
NV_CONFTEST_TYPE_COMPILE_TESTS += class_create_has_no_owner_arg

21
kernel-open/nvidia/os-interface.c
View File

@@ -2596,7 +2596,6 @@ NV_STATUS NV_API_CALL os_offline_page_at_address
{
#if defined(CONFIG_MEMORY_FAILURE)
int flags = 0;
int ret;
NvU64 pfn;
struct page *page = NV_GET_PAGE_STRUCT(address);
@@ -2621,22 +2620,18 @@ NV_STATUS NV_API_CALL os_offline_page_at_address
flags |= MF_SW_SIMULATED;
#endif
#ifdef NV_MEMORY_FAILURE_HAS_TRAPNO_ARG
ret = memory_failure(pfn, 0, flags);
#else
ret = memory_failure(pfn, flags);
#endif
nv_printf(NV_DBG_INFO, "NVRM: offlining page at address: 0x%llx pfn: 0x%llx\n",
address, pfn);
if (ret != 0)
{
nv_printf(NV_DBG_ERRORS, "NVRM: page offlining failed. address: 0x%llx pfn: 0x%llx ret: %d\n",
address, pfn, ret);
return NV_ERR_OPERATING_SYSTEM;
}
#ifdef NV_MEMORY_FAILURE_QUEUE_HAS_TRAPNO_ARG
memory_failure_queue(pfn, 0, flags);
#else
memory_failure_queue(pfn, flags);
#endif
return NV_OK;
#else // !defined(CONFIG_MEMORY_FAILURE)
nv_printf(NV_DBG_ERRORS, "NVRM: memory_failure() not supported by kernel. page offlining failed. address: 0x%llx\n",
nv_printf(NV_DBG_ERRORS, "NVRM: memory_failure_queue() not supported by kernel. page offlining failed. address: 0x%llx\n",
address);
return NV_ERR_NOT_SUPPORTED;
#endif