From: Lijo Lazar <lijo.lazar@amd.com>
Date: Mon, 30 Jun 2025 04:37:14 +0000 (+0530)
Subject: drm/amdkfd: Avoid queue reset if disabled
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=91134e800894fc6992cb0cdadea4cc94fe21b6e2;p=thirdparty%2Fkernel%2Flinux.git

drm/amdkfd: Avoid queue reset if disabled

If ring reset is disabled, skip resetting queues. Instead, fall back to
device based reset.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

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 76359c6a3f3a4..500f515520389 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -2339,9 +2339,18 @@ reset_fail:
 
 static int reset_queues_on_hws_hang(struct device_queue_manager *dqm, bool is_sdma)
 {
+	struct amdgpu_device *adev = dqm->dev->adev;
+
 	while (halt_if_hws_hang)
 		schedule();
 
+	if (adev->debug_disable_gpu_ring_reset) {
+		dev_info_once(adev->dev,
+			      "%s queue hung, but ring reset disabled",
+			      is_sdma ? "sdma" : "compute");
+
+		return -EPERM;
+	}
 	if (!amdgpu_gpu_recovery)
 		return -ENOTRECOVERABLE;