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28 .Nm pmc.cmn-600
29 .Nd Library for accessing the Arm CoreLink CMN-600 Coherent Mesh Network
36 CMN-600 PMU counters may be configured to count any one of a defined set of
38 Unlike other performance counters, counters for the CMN-600 require the
52 Some BIOS versions of dual-socket machines have no NUMA domain information in
57 the CPU package containing that CMN-600 controller.
64 Arm CoreLink CMN-600 Coherent Mesh Network Controller performance counters are
67 .%B "Arm CoreLink CMN-600 Coherent Mesh Network Technical Reference Manual"
73 CMN-600 PMU counters support the following capabilities:
74 .Bl -column "PMC_CAP_INTERRUPT" "Support"
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98 Count only events matched by
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114 This includes all the sub-types include TLB invalidate, Branch predictor
144 .Ss HN-F node events
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173 Counts number of times a HighHigh priority request is protocol-retried at the
174 HN-F
176 Counts the POCQ occupancy in HN-F.
190 Counts number of times HN-F has a pending TXDAT flit but no credits to upload
192 Counts number of times HN-F has a pending TXRSP flit but no credits to upload
216 .Ss HN-I node events
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219 RRT read occupancy count overflow
221 RRT write occupancy count overflow
223 RDT read occupancy count overflow
225 RDT write occupancy count overflow
227 WDB occupancy count overflow
253 Non-PCIe serialization event
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270 RN-F_CHIA port.
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293 Read request tracker occupancy count overflow
295 Write request tracker occupancy count overflow
297 CMO request tracker occupancy count overflow
299 WDB occupancy count overflow
301 Read AXI pending tracker occupancy count overflow
303 CMO AXI pending tracker occupancy count overflow
315 .Ss RN-D node events
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362 This is a measure of read transaction count.
365 This is a measure of write transaction count.
376 .Ss RN-I node events
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422 This is a measure of read transaction count.
425 This is a measure of write transaction count
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577 .Nm pmc.cmn-600
581 .An -nosplit
588 The CMN-600 PMU driver was sponsored by ARM Ltd.