From 4211962f8ce230796d797cb4111879a2b34864b5 Mon Sep 17 00:00:00 2001
From: Matthew Poremba <matthew.poremba@amd.com>
Date: Thu, 25 Aug 2022 15:05:41 -0700
Subject: [PATCH] dev-amdgpu: Fix translation reading SDMA MQD ("RLC queue")

The RLC queue MQD address is a GART address, not a system address, so it
must be translated through the GART first.

Change-Id: Ie52b0e65ebf57141b8ba6f88a49989813750eeec
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/62711
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
---
 src/dev/amdgpu/pm4_packet_processor.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/dev/amdgpu/pm4_packet_processor.cc b/src/dev/amdgpu/pm4_packet_processor.cc
index 3840e013d4..1213ce60ad 100644
--- a/src/dev/amdgpu/pm4_packet_processor.cc
+++ b/src/dev/amdgpu/pm4_packet_processor.cc
@@ -389,7 +389,8 @@ PM4PacketProcessor::mapQueues(PM4Queue *q, PM4MapQueues *pkt)
         SDMAQueueDesc *sdmaMQD = new SDMAQueueDesc();
         memset(sdmaMQD, 0, sizeof(SDMAQueueDesc));
 
-        Addr addr = pkt->mqdAddr;
+        // For SDMA we read the full MQD, so there is no offset calculation.
+        Addr addr = getGARTAddr(pkt->mqdAddr);
 
         auto cb = new DmaVirtCallback<uint32_t>(
             [ = ] (const uint32_t &) {