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spapr_iommu: Add separate trace points for PCI DMA operations

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This is to reduce VIO noise while debugging PCI DMA.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexey Kardashevskiy 2015-05-07 15:33:33 +10:00 • committed by Alexander Graf
parent 3e1a01cb55
commit d9d96a3cc7
3 changed files with 25 additions and 7 deletions
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27
hw/ppc/spapr_iommu.c
View file

@ -277,10 +277,11 @@ static target_ulong h_put_tce_indirect(PowerPCCPU *cpu,
/* Trace last successful or the first problematic entry */
i = i ? (i - 1) : 0;
trace_spapr_iommu_indirect(liobn, ioba1, tce_list, i,
tce,
ret);
if (SPAPR_IS_PCI_LIOBN(liobn)) {
trace_spapr_iommu_pci_indirect(liobn, ioba1, tce_list, i, tce, ret);
} else {
trace_spapr_iommu_indirect(liobn, ioba1, tce_list, i, tce, ret);
}
return ret;
}
@ -314,7 +315,11 @@ static target_ulong h_stuff_tce(PowerPCCPU *cpu, sPAPREnvironment *spapr,
break;
}
}
trace_spapr_iommu_stuff(liobn, ioba, tce_value, npages, ret);
if (SPAPR_IS_PCI_LIOBN(liobn)) {
trace_spapr_iommu_pci_stuff(liobn, ioba, tce_value, npages, ret);
} else {
trace_spapr_iommu_stuff(liobn, ioba, tce_value, npages, ret);
}
return ret;
}
@ -335,7 +340,11 @@ static target_ulong h_put_tce(PowerPCCPU *cpu, sPAPREnvironment *spapr,
ret = put_tce_emu(tcet, ioba, tce);
}
trace_spapr_iommu_put(liobn, ioba, tce, ret);
if (SPAPR_IS_PCI_LIOBN(liobn)) {
trace_spapr_iommu_pci_put(liobn, ioba, tce, ret);
} else {
trace_spapr_iommu_put(liobn, ioba, tce, ret);
}
return ret;
}
@ -375,7 +384,11 @@ static target_ulong h_get_tce(PowerPCCPU *cpu, sPAPREnvironment *spapr,
args[0] = tce;
}
}
trace_spapr_iommu_get(liobn, ioba, ret, tce);
if (SPAPR_IS_PCI_LIOBN(liobn)) {
trace_spapr_iommu_pci_get(liobn, ioba, ret, tce);
} else {
trace_spapr_iommu_get(liobn, ioba, ret, tce);
}
return ret;
}