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For debug purposes we might want to view actual VF configuration (including GGTT range, LMEM size, number of GuC contexts IDs or doorbells) and the negotiated ABI versions (with GuC and PF). Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240516110546.2216-7-michal.wajdeczko@intel.com
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2023-2024 Intel Corporation
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*/
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#include <linux/debugfs.h>
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#include <drm/drm_debugfs.h>
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#include "xe_gt_debugfs.h"
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#include "xe_gt_sriov_vf.h"
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#include "xe_gt_sriov_vf_debugfs.h"
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#include "xe_gt_types.h"
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#include "xe_sriov.h"
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/*
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* /sys/kernel/debug/dri/0/
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* ├── gt0
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* │ ├── vf
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* │ │ ├── self_config
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* │ │ ├── abi_versions
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* │ │ ├── runtime_regs
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*/
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static const struct drm_info_list vf_info[] = {
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{
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"self_config",
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.show = xe_gt_debugfs_simple_show,
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.data = xe_gt_sriov_vf_print_config,
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},
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{
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"abi_versions",
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.show = xe_gt_debugfs_simple_show,
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.data = xe_gt_sriov_vf_print_version,
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},
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#if defined(CONFIG_DRM_XE_DEBUG) || defined(CONFIG_DRM_XE_DEBUG_SRIOV)
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{
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"runtime_regs",
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.show = xe_gt_debugfs_simple_show,
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.data = xe_gt_sriov_vf_print_runtime,
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},
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#endif
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};
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/**
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* xe_gt_sriov_vf_debugfs_register - Register SR-IOV VF specific entries in GT debugfs.
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* @gt: the &xe_gt to register
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* @root: the &dentry that represents the GT directory
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*
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* Register SR-IOV VF entries that are GT related and must be shown under GT debugfs.
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*/
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void xe_gt_sriov_vf_debugfs_register(struct xe_gt *gt, struct dentry *root)
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{
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struct xe_device *xe = gt_to_xe(gt);
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struct drm_minor *minor = xe->drm.primary;
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struct dentry *vfdentry;
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xe_assert(xe, IS_SRIOV_VF(xe));
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xe_assert(xe, root->d_inode->i_private == gt);
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/*
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* /sys/kernel/debug/dri/0/
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* ├── gt0
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* │ ├── vf
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*/
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vfdentry = debugfs_create_dir("vf", root);
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if (IS_ERR(vfdentry))
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return;
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vfdentry->d_inode->i_private = gt;
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drm_debugfs_create_files(vf_info, ARRAY_SIZE(vf_info), vfdentry, minor);
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}
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