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ee18d39a08
Introduce a new 'clear-error-counter' drm_ras command to reset the counter
value for a specific error counter of a given node.
The command is a 'do' netlink request with 'node-id' and 'error-id'
as parameters with no response payload.
Usage:
$ sudo ynl --family drm_ras --do clear-error-counter --json \
'{"node-id":1, "error-id":1}'
None
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Zack McKevitt <zachary.mckevitt@oss.qualcomm.com>
Cc: Lijo Lazar <lijo.lazar@amd.com>
Cc: Hawking Zhang <Hawking.Zhang@amd.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Riana Tauro <riana.tauro@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://patch.msgid.link/20260409073318.2909379-5-riana.tauro@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Maxime Ripard <mripard@redhat.com>
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2026 Intel Corporation
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*/
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#ifndef __DRM_RAS_H__
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#define __DRM_RAS_H__
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#include <uapi/drm/drm_ras.h>
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/**
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* struct drm_ras_node - A DRM RAS Node
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*/
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struct drm_ras_node {
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/** @id: Unique identifier for the node. Dynamically assigned. */
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u32 id;
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/**
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* @device_name: Human-readable name of the device. Given by the driver.
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*/
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const char *device_name;
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/** @node_name: Human-readable name of the node. Given by the driver. */
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const char *node_name;
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/** @type: Type of the node (enum drm_ras_node_type). */
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enum drm_ras_node_type type;
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/* Error-Counter Related Callback and Variables */
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/** @error_counter_range: Range of valid Error IDs for this node. */
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struct {
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/** @first: First valid Error ID. */
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u32 first;
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/** @last: Last valid Error ID. Mandatory entry. */
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u32 last;
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} error_counter_range;
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/**
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* @query_error_counter:
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*
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* This callback is used by drm-ras to query a specific error counter.
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* Used for input check and to iterate all error counters in a node.
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*
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* Driver should expect query_error_counter() to be called with
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* error_id from `error_counter_range.first` to
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* `error_counter_range.last`.
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*
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* The @query_error_counter is a mandatory callback for
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* error_counter_node.
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*
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* Returns: 0 on success,
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* -ENOENT when error_id is not supported as an indication that
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* drm_ras should silently skip this entry. Used for
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* supporting non-contiguous error ranges.
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* Driver is responsible for maintaining the list of
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* supported error IDs in the range of first to last.
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* Other negative values on errors that should terminate the
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* netlink query.
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*/
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int (*query_error_counter)(struct drm_ras_node *node, u32 error_id,
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const char **name, u32 *val);
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/**
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* @clear_error_counter:
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*
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* This callback is used by drm_ras to clear a specific error counter.
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* Driver should implement this callback to support clearing error counters
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* of a node.
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*
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* Returns: 0 on success, negative error code on failure.
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*/
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int (*clear_error_counter)(struct drm_ras_node *node, u32 error_id);
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/** @priv: Driver private data */
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void *priv;
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};
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struct drm_device;
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#if IS_ENABLED(CONFIG_DRM_RAS)
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int drm_ras_node_register(struct drm_ras_node *node);
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void drm_ras_node_unregister(struct drm_ras_node *node);
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#else
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static inline int drm_ras_node_register(struct drm_ras_node *node) { return 0; }
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static inline void drm_ras_node_unregister(struct drm_ras_node *node) { }
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#endif
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#endif
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