123456789101112131415161718192021222324252627282930313233 |
- // SPDX-License-Identifier: GPL-2.0
- /*
- * AMD IOMMU driver
- *
- * Copyright (C) 2018 Advanced Micro Devices, Inc.
- *
- * Author: Gary R Hook <gary.hook@amd.com>
- */
- #include <linux/debugfs.h>
- #include <linux/iommu.h>
- #include <linux/pci.h>
- #include "amd_iommu_proto.h"
- #include "amd_iommu_types.h"
- static struct dentry *amd_iommu_debugfs;
- static DEFINE_MUTEX(amd_iommu_debugfs_lock);
- #define MAX_NAME_LEN 20
- void amd_iommu_debugfs_setup(struct amd_iommu *iommu)
- {
- char name[MAX_NAME_LEN + 1];
- mutex_lock(&amd_iommu_debugfs_lock);
- if (!amd_iommu_debugfs)
- amd_iommu_debugfs = debugfs_create_dir("amd",
- iommu_debugfs_dir);
- mutex_unlock(&amd_iommu_debugfs_lock);
- snprintf(name, MAX_NAME_LEN, "iommu%02d", iommu->index);
- iommu->debugfs = debugfs_create_dir(name, amd_iommu_debugfs);
- }
|