From: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
To: intel-xe@lists.freedesktop.org, niranjana.vishwanathapura@intel.com
Cc: matthew.brost@intel.com, stuart.summers@intel.com
Subject: [PATCH v3 02/11] drm/xe: Add timestamp_ms to LRC snapshot
Date: Tue, 5 May 2026 16:44:11 -0700 [thread overview]
Message-ID: <20260505234408.3552147-15-umesh.nerlige.ramappa@intel.com> (raw)
In-Reply-To: <20260505234408.3552147-13-umesh.nerlige.ramappa@intel.com>
From: Matthew Brost <matthew.brost@intel.com>
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>
---
v2: Group u32s to avoid padding (Niranjana)
---
drivers/gpu/drm/xe/xe_lrc.c | 4 ++++
drivers/gpu/drm/xe/xe_lrc.h | 1 +
2 files changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c
index 570ff9f55849..66682a678cc2 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 bef7af9a578b..d280e6572398 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;
};
--
2.51.0
next prev parent reply other threads:[~2026-05-05 23:44 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-05 23:44 [PATCH v3 00/11] Support run ticks for multi-queue use case Umesh Nerlige Ramappa
2026-05-05 23:44 ` [PATCH v3 01/11] drm/xe/lrc: Use 64 bit ctx timestamp in the LRC snapshot Umesh Nerlige Ramappa
2026-05-05 23:44 ` Umesh Nerlige Ramappa [this message]
2026-05-06 3:10 ` [PATCH v3 02/11] drm/xe: Add timestamp_ms to " Niranjana Vishwanathapura
2026-05-05 23:44 ` [PATCH v3 03/11] drm/xe/lrc: Refactor xe_lrc_timestamp to simplify logic Umesh Nerlige Ramappa
2026-05-06 3:13 ` Niranjana Vishwanathapura
2026-05-05 23:44 ` [PATCH v3 04/11] drm/xe/multi_queue: Refactor check for multi queue support for engine class Umesh Nerlige Ramappa
2026-05-06 3:16 ` Niranjana Vishwanathapura
2026-05-05 23:44 ` [PATCH v3 05/11] drm/xe/multi_queue: Store primary LRC and position info in LRC Umesh Nerlige Ramappa
2026-05-06 3:47 ` Niranjana Vishwanathapura
2026-05-05 23:44 ` [PATCH v3 06/11] drm/xe/multi_queue: Add helpers to access CS QUEUE TIMESTAMP from lrc Umesh Nerlige Ramappa
2026-05-06 3:25 ` Niranjana Vishwanathapura
2026-05-06 5:07 ` Niranjana Vishwanathapura
2026-05-05 23:44 ` [PATCH v3 07/11] drm/xe/lrc: Refactor out engine id to hwe conversion Umesh Nerlige Ramappa
2026-05-05 23:44 ` [PATCH v3 08/11] drm/xe/multi_queue: Capture queue run times for active queues Umesh Nerlige Ramappa
2026-05-06 3:30 ` Niranjana Vishwanathapura
2026-05-05 23:44 ` [PATCH v3 09/11] drm/xe/multi_queue: Add trace event for the multi queue timestamp Umesh Nerlige Ramappa
2026-05-06 5:03 ` Niranjana Vishwanathapura
2026-05-06 20:25 ` Umesh Nerlige Ramappa
2026-05-05 23:44 ` [PATCH v3 10/11] drm/xe/multi_queue: Use QUEUE_TIMESTAMP as job timestamp for multi-queue Umesh Nerlige Ramappa
2026-05-05 23:44 ` [PATCH v3 11/11] drm/xe/multi_queue: Whitelist QUEUE_TIMESTAMP register Umesh Nerlige Ramappa
2026-05-06 3:31 ` Niranjana Vishwanathapura
2026-05-05 23:51 ` ✗ CI.checkpatch: warning for Support run ticks for multi-queue use case (rev3) Patchwork
2026-05-05 23:53 ` ✓ CI.KUnit: success " Patchwork
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