linux-kernel - [PATCH] drm/amdkfd: Make process queues logs less verbose

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Date:   Sun,  2 Feb 2020 00:11:01 +0100
From:   Julian Sax <jsbc@....de>
To:     amd-gfx@...ts.freedesktop.org
Cc:     Julian Sax <jsbc@....de>, Felix Kuehling <Felix.Kuehling@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/amdkfd: Make process queues logs less verbose

During normal usage, especially if jobs are started and stopped in rapid
succession, the kernel log is filled with messages like this:

[38732.522910] Restoring PASID 0x8003 queues
[38732.666767] Evicting PASID 0x8003 queues
[38732.714074] Restoring PASID 0x8003 queues
[38732.815633] Evicting PASID 0x8003 queues
[38732.834961] Restoring PASID 0x8003 queues
[38732.840536] Evicting PASID 0x8003 queues
[38732.869846] Restoring PASID 0x8003 queues
[38732.893655] Evicting PASID 0x8003 queues
[38732.927975] Restoring PASID 0x8003 queues

According to [1], these messages are expected, but they carry little
value for the end user, so turn them into debug messages.

[1] https://github.com/RadeonOpenCompute/ROCm/issues/343

Signed-off-by: Julian Sax <jsbc@....de>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 984c2f2b24b6..3dc0e8c3b91b 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -604,7 +604,7 @@ static int evict_process_queues_nocpsch(struct device_queue_manager *dqm,
 		goto out;

 	pdd = qpd_to_pdd(qpd);
-	pr_info_ratelimited("Evicting PASID 0x%x queues\n",
+	pr_debug_ratelimited("Evicting PASID 0x%x queues\n",
 			    pdd->process->pasid);

 	/* Mark all queues as evicted. Deactivate all active queues on
@@ -650,7 +650,7 @@ static int evict_process_queues_cpsch(struct device_queue_manager *dqm,
 		goto out;

 	pdd = qpd_to_pdd(qpd);
-	pr_info_ratelimited("Evicting PASID 0x%x queues\n",
+	pr_debug_ratelimited("Evicting PASID 0x%x queues\n",
 			    pdd->process->pasid);

 	/* Mark all queues as evicted. Deactivate all active queues on
@@ -696,7 +696,7 @@ static int restore_process_queues_nocpsch(struct device_queue_manager *dqm,
 		goto out;
 	}

-	pr_info_ratelimited("Restoring PASID 0x%x queues\n",
+	pr_debug_ratelimited("Restoring PASID 0x%x queues\n",
 			    pdd->process->pasid);

 	/* Update PD Base in QPD */
@@ -772,7 +772,7 @@ static int restore_process_queues_cpsch(struct device_queue_manager *dqm,
 		goto out;
 	}

-	pr_info_ratelimited("Restoring PASID 0x%x queues\n",
+	pr_debug_ratelimited("Restoring PASID 0x%x queues\n",
 			    pdd->process->pasid);

 	/* Update PD Base in QPD */
--
2.24.1