From: Andrew Schultz <alschult@umich.edu>
Date: Sat, 10 Jul 2004 02:32:27 +0000 (-0400)
Subject: Remove second pciToDma translation on current PRD address pointer b/c
X-Git-Tag: m5_1.0_tutorial~250
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4f4252fa89f31e6bb87fe9153e2ead982aaa7e32;p=gem5.git

Remove second pciToDma translation on current PRD address pointer b/c
second translation (which is superfluous) doesn't work properly when
system memory is higher than 128MB

--HG--
extra : convert_revision : 9cdf6925689d376953b1aa071bcd1e2f06419202
---

diff --git a/dev/ide_disk.cc b/dev/ide_disk.cc
index ee21feaea..99724f077 100644
--- a/dev/ide_disk.cc
+++ b/dev/ide_disk.cc
@@ -341,8 +341,8 @@ IdeDisk::dmaPrdReadDone()
             curPrd.getByteCount(), (cmdBytesLeft/SectorSize),
             curPrd.getEOT(), curSector);
 
-    // make sure the new curPrdAddr is properly translated from PCI to system
-    curPrdAddr = pciToDma(curPrdAddr + sizeof(PrdEntry_t));
+    // the prd pointer has already been translated, so just do an increment
+    curPrdAddr = curPrdAddr + sizeof(PrdEntry_t);
 
     if (dmaRead)
         doDmaRead();