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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
39 node ID to set up.
42 Using bootverbose, for example set sysctl debug.bootverbose=1 and then load the
52 Some BIOS versions of dual-socket machines have no NUMA domain information in
54 In such cases, to get more accurate events statistics, set the kernel
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"
91 .Bl -tag -width indent
97 .It Li xpport= Ns Ar port
99 .Ar port .
111 .Bl -tag -width indent
114 This includes all the sub-types include TLB invalidate, Branch predictor
144 .Ss HN-F node events
145 .Bl -tag -width indent
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
217 .Bl -tag -width indent
241 ARVALID set without ARREADY event
243 ARREADY set without ARVALID event
245 AWVALID set without AWREADY event
247 AWREADY set without AWVALID event
249 WVALID set without WREADY event
253 Non-PCIe serialization event
258 .Bl -tag -width indent
260 Number of flits transmitted on a specified port and CHI channel.
265 specified port and CHI channel.
270 RN-F_CHIA port.
279 .Bl -tag -width indent
305 ARVALID set without ARREADY
307 AWVALID set without AWREADY
309 WVALID set without WREADY
315 .Ss RN-D node events
316 .Bl -tag -width indent
318 Number of RData beats, RVALID and RREADY, dispatched on port 0.
321 Number of RData beats, RVALID and RREADY, dispatched on port 1.
324 Number of RData beats, RVALID and RREADY, dispatched on port 2.
352 Number of WData beats, WVALID and WREADY, dispatched on port 0.
353 This is a measure of write bandwidth on AXI port 0.
355 Number of WData beats, WVALID and WREADY, dispatched on port 1.
356 This is a measure of write bandwidth on AXI port 1.
358 Number of WData beats, WVALID and WREADY, dispatched on port 2.
359 This is a measure of write bandwidth on AXI port 2.
376 .Ss RN-I node events
377 .Bl -tag -width indent
379 Number of RData beats, RVALID and RREADY, dispatched on port 0.
382 Number of RData beats, RVALID and RREADY, dispatched on port 1.
385 Number of RData beats, RVALID and RREADY, dispatched on port 2.
412 Number of WData beats, WVALID and WREADY, dispatched on port 0.
413 This is a measure of write bandwidth on AXI port 0.
415 Number of WData beats, WVALID and WREADY, dispatched on port 1.
416 This is a measure of write bandwidth on AXI port 1.
418 Number of WData beats, WVALID and WREADY, dispatched on port 2.
419 This is a measure of write bandwidth on AXI port 2.
438 .Bl -tag -width indent
467 .Bl -tag -width indent
489 Memory Data Request available, but no DAT Pcrd to send over CCIX per LinkEnd 0
491 Memory Data Request available, but no DAT Pcrd to send over CCIX per LinkEnd 1
493 Memory Data Request available, but no DAT Pcrd to send over CCIX per LinkEnd 2
495 Memory Data Request available but no Req Pcrd to send over CCIX per LinkEnd 0
497 Memory Data Request available but no Req Pcrd to send over CCIX per LinkEnd 1
499 Memory Data Request available but no Req Pcrd to send over CCIX per LinkEnd 2
506 .Bl -tag -width indent
577 .Nm pmc.cmn-600
581 .An -nosplit
588 The CMN-600 PMU driver was sponsored by ARM Ltd.