From: jsg <jsg@openbsd.org>
Date: Fri, 12 Jul 2024 03:52:00 +0000 (+0000)
Subject: drm/amdgpu: Initialize timestamp for some legacy SOCs
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=91b5575ad479f72cbb4889d9ac3f74ed93734e6f;p=openbsd

drm/amdgpu: Initialize timestamp for some legacy SOCs

From Ma Jun
e55077badb9054630856cbefc099ad148a446648 in linux-6.6.y/6.6.39
2e55bcf3d742a4946d862b86e39e75a95cc6f1c0 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_irq.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_irq.c
index 10d43e72011..10b1f659cde 100644
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_irq.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_irq.c
@@ -446,6 +446,14 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
 
 	entry.ih = ih;
 	entry.iv_entry = (const uint32_t *)&ih->ring[ring_index];
+
+	/*
+	 * timestamp is not supported on some legacy SOCs (cik, cz, iceland,
+	 * si and tonga), so initialize timestamp and timestamp_src to 0
+	 */
+	entry.timestamp = 0;
+	entry.timestamp_src = 0;
+
 	amdgpu_ih_decode_iv(adev, &entry);
 
 	trace_amdgpu_iv(ih - &adev->irq.ih, &entry);