From: Matthew Brost <matthew.brost@intel.com>
Date: Thu, 7 May 2026 16:20:19 +0000 (-0700)
Subject: drm/xe: Add timestamp_ms to LRC snapshot
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e98cf36bf5b5043c5172041e2d24d40139c7f0e9;p=thirdparty%2Flinux.git

drm/xe: Add timestamp_ms to LRC snapshot

Add a timestamp in milliseconds to the LRC snapshot to make it easier to
reason about how long the LRC has been running and the average duration
of each job.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Link: https://patch.msgid.link/20260507162016.3888309-15-umesh.nerlige.ramappa@intel.com
---

diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c
index 570ff9f55849f..66682a678cc25 100644
--- a/drivers/gpu/drm/xe/xe_lrc.c
+++ b/drivers/gpu/drm/xe/xe_lrc.c
@@ -23,6 +23,7 @@
 #include "xe_drm_client.h"
 #include "xe_exec_queue_types.h"
 #include "xe_gt.h"
+#include "xe_gt_clock.h"
 #include "xe_gt_printk.h"
 #include "xe_hw_fence.h"
 #include "xe_map.h"
@@ -2463,6 +2464,8 @@ struct xe_lrc_snapshot *xe_lrc_snapshot_capture(struct xe_lrc *lrc)
 	snapshot->replay_size = lrc->replay_size;
 	snapshot->lrc_snapshot = NULL;
 	snapshot->ctx_timestamp = xe_lrc_ctx_timestamp(lrc);
+	snapshot->ctx_timestamp_ms =
+		xe_gt_clock_interval_to_ms(lrc->gt, xe_lrc_ctx_timestamp(lrc));
 	snapshot->ctx_job_timestamp = xe_lrc_ctx_job_timestamp(lrc);
 	return snapshot;
 }
@@ -2516,6 +2519,7 @@ void xe_lrc_snapshot_print(struct xe_lrc_snapshot *snapshot, struct drm_printer
 	drm_printf(p, "\tStart seqno: (memory) %d\n", snapshot->start_seqno);
 	drm_printf(p, "\tSeqno: (memory) %d\n", snapshot->seqno);
 	drm_printf(p, "\tTimestamp: 0x%016llx\n", snapshot->ctx_timestamp);
+	drm_printf(p, "\tTimestamp ms: %llu\n", snapshot->ctx_timestamp_ms);
 	drm_printf(p, "\tJob Timestamp: 0x%08x\n", snapshot->ctx_job_timestamp);
 
 	if (!snapshot->lrc_snapshot)
diff --git a/drivers/gpu/drm/xe/xe_lrc.h b/drivers/gpu/drm/xe/xe_lrc.h
index bef7af9a578bf..d280e65723983 100644
--- a/drivers/gpu/drm/xe/xe_lrc.h
+++ b/drivers/gpu/drm/xe/xe_lrc.h
@@ -38,6 +38,7 @@ struct xe_lrc_snapshot {
 	u32 start_seqno;
 	u32 seqno;
 	u64 ctx_timestamp;
+	u64 ctx_timestamp_ms;
 	u32 ctx_job_timestamp;
 };