[m5-dev] changeset in m5: X86: Mark IO space accesses as uncachable.

[Gabe Black]

changeset 6246338ac1e9 in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=6246338ac1e9
description:
        X86: Mark IO space accesses as uncachable.

diffstat:

 src/arch/x86/tlb.cc |  2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diffs (19 lines):

diff -r 0c67ea5dbb7e -r 6246338ac1e9 src/arch/x86/tlb.cc
--- a/src/arch/x86/tlb.cc       Mon Nov 22 05:47:54 2010 -0500
+++ b/src/arch/x86/tlb.cc       Mon Nov 22 05:49:03 2010 -0500
@@ -511,6 +511,7 @@
             req->setFlags(Request::MMAPED_IPR);
             req->setPaddr(MISCREG_PCI_CONFIG_ADDRESS * sizeof(MiscReg));
         } else if ((IOPort & ~mask(2)) == 0xCFC) {
+            req->setFlags(Request::UNCACHEABLE);
             Addr configAddress =
                 tc->readMiscRegNoEffect(MISCREG_PCI_CONFIG_ADDRESS);
             if (bits(configAddress, 31, 31)) {
@@ -519,6 +520,7 @@
                         (IOPort & mask(2)));
             }
         } else {
+            req->setFlags(Request::UNCACHEABLE);
             req->setPaddr(PhysAddrPrefixIO | IOPort);
         }
         return NoFault;
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