PRD: Manually clear the Centaur interrupt status reg on chnl fail

Change-Id: Ic8974632d2d2eae4e4d23f7816157ec22caa8610 CQ: SW439211 Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/63226 Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com> Reviewed-by: Brian J. Stegmiller <bjs@us.ibm.com> Reviewed-by: Benjamin J. Weisenbeck <bweisenb@us.ibm.com> Reviewed-by: Caleb N. Palmer <cnpalmer@us.ibm.com> Reviewed-by: Zane C. Shelley <zshelle@us.ibm.com> Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/63387 Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com> Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com> Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
open-power · Jul 27, 2018 · 62f4b4a · 62f4b4a
1 parent 96e0310
commit 62f4b4a
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diff --git a/src/usr/diag/prdf/common/plat/cen/cen_centaur_regs.rule b/src/usr/diag/prdf/common/plat/cen/cen_centaur_regs.rule
@@ -131,6 +131,17 @@
         access      write_only;
     };
 
+    ############################################################################
+    # Interrupt status register
+    ############################################################################
+
+    register INTER_STATUS_REG
+    {
+        name        "TPTOP.PIB.PCBMS.INTERRUPT_TYPE_REG";
+        scomaddr    0x000F001A;
+        capture     group default;
+    };
+
     ############################################################################
     # TP chiplet error report registers
     ############################################################################

diff --git a/src/usr/diag/prdf/common/plat/mem/prdfMemUtils.C b/src/usr/diag/prdf/common/plat/mem/prdfMemUtils.C
@@ -891,6 +891,12 @@ void __cleanupChnlFail<TYPE_DMI,TYPE_MEMBUF>( ExtensibleChip * i_dmiChip,
         reg->Write();
     }
 
+    // To ensure FSP ATTN doesn't think there is an active attention on this
+    // Centaur, manually clear the interrupt status register.
+    reg = i_membChip->getRegister( "INTER_STATUS_REG" );
+    reg->clearAllBits(); // Blindly clear everything
+    reg->Write();
+
     // For all attached MBAs:
     //   During runtime, send a dynamic memory deallocation message.
     //   During Memory Diagnostics, tell MDIA to stop pattern tests.