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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by BL6PEPF0001AB71.mail.protection.outlook.com (10.167.242.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7202.16 via Frontend Transport; Wed, 17 Jan 2024 18:44:19 +0000 Received: from patedamande.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.34; Wed, 17 Jan 2024 12:44:16 -0600 From: Pierre-Eric Pelloux-Prayer To: Sumit Semwal , Gustavo Padovan , =?utf-8?q?Christian_K=C3=B6nig?= , Steven Rostedt , "Masami Hiramatsu" , Mathieu Desnoyers , , , , "Alex Deucher" , CC: Pierre-Eric Pelloux-Prayer Subject: [PATCH 1/2] tracing, dma-buf: add a trace_dma_fence_sync_to event Date: Wed, 17 Jan 2024 19:41:40 +0100 Message-ID: <20240117184329.479554-1-pierre-eric.pelloux-prayer@amd.com> X-Mailer: git-send-email 2.41.0 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB71:EE_|CH3PR12MB8460:EE_ X-MS-Office365-Filtering-Correlation-Id: 5ebcd6cd-fb6b-491a-632a-08dc178c50a0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jan 2024 18:44:19.5004 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5ebcd6cd-fb6b-491a-632a-08dc178c50a0 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0001AB71.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8460 This new event can be used to trace where a given dma_fence is added as a dependency of some other work. I plan to use it in amdgpu. Signed-off-by: Pierre-Eric Pelloux-Prayer --- drivers/dma-buf/dma-fence.c | 1 + include/trace/events/dma_fence.h | 34 ++++++++++++++++++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index e0fd99e61a2d..671a499a5ccd 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -23,6 +23,7 @@ EXPORT_TRACEPOINT_SYMBOL(dma_fence_emit); EXPORT_TRACEPOINT_SYMBOL(dma_fence_enable_signal); EXPORT_TRACEPOINT_SYMBOL(dma_fence_signaled); +EXPORT_TRACEPOINT_SYMBOL(dma_fence_sync_to); static DEFINE_SPINLOCK(dma_fence_stub_lock); static struct dma_fence dma_fence_stub; diff --git a/include/trace/events/dma_fence.h b/include/trace/events/dma_fence.h index 3963e79ca7b4..9b3875f7aa79 100644 --- a/include/trace/events/dma_fence.h +++ b/include/trace/events/dma_fence.h @@ -83,6 +83,40 @@ DEFINE_EVENT(dma_fence, dma_fence_wait_end, TP_ARGS(fence) ); +DECLARE_EVENT_CLASS(dma_fence_from, + + TP_PROTO(struct dma_fence *fence, const char *reason), + + TP_ARGS(fence, reason), + + TP_STRUCT__entry( + __string(driver, fence->ops->get_driver_name(fence)) + __string(timeline, fence->ops->get_timeline_name(fence)) + __field(unsigned int, context) + __field(unsigned int, seqno) + __string(reason, reason) + ), + + TP_fast_assign( + __assign_str(driver, fence->ops->get_driver_name(fence)); + __assign_str(timeline, fence->ops->get_timeline_name(fence)); + __entry->context = fence->context; + __entry->seqno = fence->seqno; + __assign_str(reason, reason); + ), + + TP_printk("driver=%s timeline=%s context=%u seqno=%u reason=%s", + __get_str(driver), __get_str(timeline), __entry->context, + __entry->seqno, __get_str(reason)) +); + +DEFINE_EVENT(dma_fence_from, dma_fence_sync_to, + + TP_PROTO(struct dma_fence *fence, const char *reason), + + TP_ARGS(fence, reason) +); + #endif /* _TRACE_DMA_FENCE_H */ /* This part must be outside protection */