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PMC.DMC-620(3) Library Functions Manual PMC.DMC-620(3) NAME pmc.dmc-620 -- measure the Arm DMC-620 Dynamic Memory Controller perfor- mance counter events. LIBRARY Performance Counters Library (libpmc, -lpmc) SYNOPSIS #include <pmc.h> DESCRIPTION DMC-620 PMU counters may be configured to count any one of a defined set of hardware events. Arm CoreLink DMC-620 Dynamic Memory Controller performance counters are documented in "Revision: r0p0", ARM CoreLink DMC-620 Dynamic Memory Con- troller Technical Reference Manual, ARM Limited, 2017. PMC Capabilities DMC-620 PMU counters support the following capabilities: Capability Support PMC_CAP_CASCADE No PMC_CAP_EDGE No PMC_CAP_INTERRUPT Yes PMC_CAP_INVERT Yes PMC_CAP_READ Yes PMC_CAP_PRECISE No PMC_CAP_SYSTEM Yes PMC_CAP_TAGGING No PMC_CAP_THRESHOLD Yes PMC_CAP_USER No PMC_CAP_WRITE Yes Event Qualifiers Event specifiers for these PMCs support the following common qualifiers: inc=value Two-bit value that controls direction of count for PMC. Behavior depend on selected event. inv Invert the sense of comparison. match=value Count only events matched by value. mask=qualifier Allow to apply qualifier mask to compared value. Class Name Prefix These PMCs use a class name prefix of "DMC620_CD2_" or "DMC620_C_". Event Specifiers The following PMC events are available: clkdiv2_cycle_count clkdiv2_allocate clkdiv2_queue_depth clkdiv2_waiting_for_wr_data clkdiv2_read_backlog clkdiv2_waiting_for_mi clkdiv2_hazard_resolution clkdiv2_enqueue clkdiv2_arbitrate clkdiv2_lrank_turnaround_activate clkdiv2_prank_turnaround_activate clkdiv2_read_depth clkdiv2_write_depth clkdiv2_highhigh_qos_depth clkdiv2_high_qos_depth clkdiv2_medium_qos_depth clkdiv2_low_qos_depth clkdiv2_activate clkdiv2_rdwr clkdiv2_refresh clkdiv2_training_request clkdiv2_t_mac_tracker clkdiv2_bk_fsm_tracker clkdiv2_bk_open_tracker clkdiv2_ranks_in_pwr_down clkdiv2_ranks_in_sref clk_cycle_count clk_request clk_upload_stall SEE ALSO pmc(3), pmc.amd(3), pmc.atom(3), pmc.core(3), pmc.core2(3), pmc.corei7(3), pmc.corei7uc(3), pmc.iaf(3), pmc.soft(3), pmc.tsc(3), pmc.westmere(3), pmc.westmereuc(3), pmc_cpuinfo(3), pmclog(3), hwpmc(4) HISTORY The pmc library first appeared in FreeBSD 6.0. The pmc.dmc-620 driver was added in FreeBSD 14.0. AUTHORS The Performance Counters Library (libpmc, -lpmc) library was written by Joseph Koshy <jkoshy@FreeBSD.org>. Oleksandr Rybalko <ray@FreeBSD.org>. The DMC-620 PMU driver was sponsored by Ampere Computing LLC. This manual page was written by Oleksandr Rybalko <ray@FreeBSD.org>. FreeBSD ports 15.quarterly Jul 22, 2022 PMC.DMC-620(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | clkdiv2_cycle_count | clkdiv2_allocate | clkdiv2_queue_depth | clkdiv2_waiting_for_wr_data | clkdiv2_read_backlog | clkdiv2_waiting_for_mi | clkdiv2_hazard_resolution | clkdiv2_enqueue | clkdiv2_arbitrate | clkdiv2_lrank_turnaround_activate | clkdiv2_prank_turnaround_activate | clkdiv2_read_depth | clkdiv2_write_depth | clkdiv2_highhigh_qos_depth | clkdiv2_high_qos_depth | clkdiv2_medium_qos_depth | clkdiv2_low_qos_depth | clkdiv2_activate | clkdiv2_rdwr | clkdiv2_refresh | clkdiv2_training_request | clkdiv2_t_mac_tracker | clkdiv2_bk_fsm_tracker | clkdiv2_bk_open_tracker | clkdiv2_ranks_in_pwr_down | clkdiv2_ranks_in_sref | clk_cycle_count | clk_request | clk_upload_stall | SEE ALSO | HISTORY | AUTHORS
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