From: Riana Tauro <riana.tauro@intel.com>
Date: Thu, 9 Apr 2026 07:33:20 +0000 (+0530)
Subject: drm/xe/xe_drm_ras: Add support for clear-error-counter in XE drm_ras
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e12be2535cca2e0b457175a0ee25d1c0d1fb909f;p=thirdparty%2Fkernel%2Flinux.git

drm/xe/xe_drm_ras: Add support for clear-error-counter in XE drm_ras

Add support for clear-error-counter command in XE drm_ras
This resets the counter value.

Usage:

$ sudo ynl --family drm_ras  --do clear-error-counter --json \
'{"node-id":1, "error-id":1}'
None

Signed-off-by: Riana Tauro <riana.tauro@intel.com>
Reviewed-by: Raag Jadav <raag.jadav@intel.com>
Link: https://patch.msgid.link/20260409073318.2909379-6-riana.tauro@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---

diff --git a/drivers/gpu/drm/xe/xe_drm_ras.c b/drivers/gpu/drm/xe/xe_drm_ras.c
index e07dc23a155ed..c21c8b428de6b 100644
--- a/drivers/gpu/drm/xe/xe_drm_ras.c
+++ b/drivers/gpu/drm/xe/xe_drm_ras.c
@@ -27,6 +27,16 @@ static int hw_query_error_counter(struct xe_drm_ras_counter *info,
 	return 0;
 }
 
+static int hw_clear_error_counter(struct xe_drm_ras_counter *info, u32 error_id)
+{
+	if (!info || !info[error_id].name)
+		return -ENOENT;
+
+	atomic_set(&info[error_id].counter, 0);
+
+	return 0;
+}
+
 static int query_uncorrectable_error_counter(struct drm_ras_node *ep, u32 error_id,
 					     const char **name, u32 *val)
 {
@@ -37,6 +47,15 @@ static int query_uncorrectable_error_counter(struct drm_ras_node *ep, u32 error_
 	return hw_query_error_counter(info, error_id, name, val);
 }
 
+static int clear_uncorrectable_error_counter(struct drm_ras_node *node, u32 error_id)
+{
+	struct xe_device *xe = node->priv;
+	struct xe_drm_ras *ras = &xe->ras;
+	struct xe_drm_ras_counter *info = ras->info[DRM_XE_RAS_ERR_SEV_UNCORRECTABLE];
+
+	return hw_clear_error_counter(info, error_id);
+}
+
 static int query_correctable_error_counter(struct drm_ras_node *ep, u32 error_id,
 					   const char **name, u32 *val)
 {
@@ -47,6 +66,15 @@ static int query_correctable_error_counter(struct drm_ras_node *ep, u32 error_id
 	return hw_query_error_counter(info, error_id, name, val);
 }
 
+static int clear_correctable_error_counter(struct drm_ras_node *node, u32 error_id)
+{
+	struct xe_device *xe = node->priv;
+	struct xe_drm_ras *ras = &xe->ras;
+	struct xe_drm_ras_counter *info = ras->info[DRM_XE_RAS_ERR_SEV_CORRECTABLE];
+
+	return hw_clear_error_counter(info, error_id);
+}
+
 static struct xe_drm_ras_counter *allocate_and_copy_counters(struct xe_device *xe)
 {
 	struct xe_drm_ras_counter *counter;
@@ -92,10 +120,13 @@ static int assign_node_params(struct xe_device *xe, struct drm_ras_node *node,
 	if (IS_ERR(ras->info[severity]))
 		return PTR_ERR(ras->info[severity]);
 
-	if (severity == DRM_XE_RAS_ERR_SEV_CORRECTABLE)
+	if (severity == DRM_XE_RAS_ERR_SEV_CORRECTABLE) {
 		node->query_error_counter = query_correctable_error_counter;
-	else
+		node->clear_error_counter = clear_correctable_error_counter;
+	} else {
 		node->query_error_counter = query_uncorrectable_error_counter;
+		node->clear_error_counter = clear_uncorrectable_error_counter;
+	}
 
 	return 0;
 }