From 37b9c7bbe1ee1937a317f7fafacd1d116202b2d8 Mon Sep 17 00:00:00 2001 From: Joakim Zhang Date: Wed, 27 Jan 2021 18:57:34 +0800 Subject: perf vendor events arm64: Add JSON metrics for imx8mp DDR Perf Add JSON metrics for imx8mp DDR Perf. Signed-off-by: Joakim Zhang Reviewed-by: John Garry Cc: Alexander Shishkin Cc: Fabio Estevam Cc: Ingo Molnar Cc: Jiri Olsa Cc: Kajol Jain Cc: Leo Yan Cc: Mark Rutland Cc: Mathieu Poirier Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Sascha Hauer Cc: Shawn Guo Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: linux-imx@nxp.com Cc: kernel@pengutronix.de Link: https://lore.kernel.org/r/20210127105734.12198-5-qiangqing.zhang@nxp.com Signed-off-by: Arnaldo Carvalho de Melo --- .../arch/arm64/freescale/imx8mp/sys/ddrc.json | 37 ++ .../arch/arm64/freescale/imx8mp/sys/metrics.json | 466 +++++++++++++++++++++ 2 files changed, 503 insertions(+) create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/imx8mp/sys/ddrc.json create mode 100644 tools/perf/pmu-events/arch/arm64/freescale/imx8mp/sys/metrics.json (limited to 'tools/perf/pmu-events/arch') diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx8mp/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx8mp/sys/ddrc.json new file mode 100644 index 000000000000..f9a89efc9b24 --- /dev/null +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx8mp/sys/ddrc.json @@ -0,0 +1,37 @@ +[ + { + "BriefDescription": "ddr cycles event", + "EventCode": "0x00", + "EventName": "imx8mp_ddr.cycles", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "ddr read-cycles event", + "EventCode": "0x2a", + "EventName": "imx8mp_ddr.read_cycles", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "ddr write-cycles event", + "EventCode": "0x2b", + "EventName": "imx8mp_ddr.write_cycles", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "ddr read event", + "EventCode": "0x35", + "EventName": "imx8mp_ddr.read", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "ddr write event", + "EventCode": "0x38", + "EventName": "imx8mp_ddr.write", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + } +] diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx8mp/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx8mp/sys/metrics.json new file mode 100644 index 000000000000..8b9544424b3f --- /dev/null +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx8mp/sys/metrics.json @@ -0,0 +1,466 @@ +[ + { + "BriefDescription": "bytes of all masters read from ddr", + "MetricName": "imx8mp_ddr_read.all", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0xffff\\,axi_id\\=0x0000@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of all masters write to ddr", + "MetricName": "imx8mp_ddr_write.all", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0xffff\\,axi_id\\=0x0000@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of a53 core read from ddr", + "MetricName": "imx8mp_ddr_read.a53", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0000@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of a53 core write to ddr", + "MetricName": "imx8mp_ddr_write.a53", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0000@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of supermix(m7) core read from ddr", + "MetricName": "imx8mp_ddr_read.supermix", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x000f\\,axi_id\\=0x0020@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of supermix(m7) write to ddr", + "MetricName": "imx8mp_ddr_write.supermix", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x000f\\,axi_id\\=0x0020@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of gpu 3d read from ddr", + "MetricName": "imx8mp_ddr_read.3d", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0070@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of gpu 3d write to ddr", + "MetricName": "imx8mp_ddr_write.3d", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0070@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of gpu 2d read from ddr", + "MetricName": "imx8mp_ddr_read.2d", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0071@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of gpu 2d write to ddr", + "MetricName": "imx8mp_ddr_write.2d", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0071@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display lcdif1 read from ddr", + "MetricName": "imx8mp_ddr_read.lcdif1", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0068@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display lcdif1 write to ddr", + "MetricName": "imx8mp_ddr_write.lcdif1", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0068@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display lcdif2 read from ddr", + "MetricName": "imx8mp_ddr_read.lcdif2", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0069@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display lcdif2 write to ddr", + "MetricName": "imx8mp_ddr_write.lcdif2", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0069@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isi1 read from ddr", + "MetricName": "imx8mp_ddr_read.isi1", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x006a@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isi1 write to ddr", + "MetricName": "imx8mp_ddr_write.isi1", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x006a@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isi2 read from ddr", + "MetricName": "imx8mp_ddr_read.isi2", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x006b@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isi2 write to ddr", + "MetricName": "imx8mp_ddr_write.isi2", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x006b@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isi3 read from ddr", + "MetricName": "imx8mp_ddr_read.isi3", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x006c@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isi3 write to ddr", + "MetricName": "imx8mp_ddr_write.isi3", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x006c@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isp1 read from ddr", + "MetricName": "imx8mp_ddr_read.isp1", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x006d@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isp1 write to ddr", + "MetricName": "imx8mp_ddr_write.isp1", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x006d@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isp2 read from ddr", + "MetricName": "imx8mp_ddr_read.isp2", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x006e@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display isp2 write to ddr", + "MetricName": "imx8mp_ddr_write.isp2", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x006e@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display dewarp read from ddr", + "MetricName": "imx8mp_ddr_read.dewarp", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x006f@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of display dewarp write to ddr", + "MetricName": "imx8mp_ddr_write.dewarp", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x006f@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of vpu1 read from ddr", + "MetricName": "imx8mp_ddr_read.vpu1", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x007c@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of vpu1 write to ddr", + "MetricName": "imx8mp_ddr_write.vpu1", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x007c@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of vpu2 read from ddr", + "MetricName": "imx8mp_ddr_read.vpu2", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x007d@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of vpu2 write to ddr", + "MetricName": "imx8mp_ddr_write.vpu2", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x007d@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of vpu3 read from ddr", + "MetricName": "imx8mp_ddr_read.vpu3", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x007e@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of vpu3 write to ddr", + "MetricName": "imx8mp_ddr_write.vpu3", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x007e@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of npu read from ddr", + "MetricName": "imx8mp_ddr_read.npu", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0073@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of npu write to ddr", + "MetricName": "imx8mp_ddr_write.npu", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0073@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hsio usb1 read from ddr", + "MetricName": "imx8mp_ddr_read.usb1", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0078@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hsio usb1 write to ddr", + "MetricName": "imx8mp_ddr_write.usb1", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0078@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hsio usb2 read from ddr", + "MetricName": "imx8mp_ddr_read.usb2", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0079@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hsio usb2 write to ddr", + "MetricName": "imx8mp_ddr_write.usb2", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0079@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hsio pci read from ddr", + "MetricName": "imx8mp_ddr_read.pci", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x007a@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hsio pci write to ddr", + "MetricName": "imx8mp_ddr_write.pci", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x007a@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hdmi_tx hrv_mwr read from ddr", + "MetricName": "imx8mp_ddr_read.hdmi_hrv_mwr", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0074@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hdmi_tx hrv_mwr write to ddr", + "MetricName": "imx8mp_ddr_write.hdmi_hrv_mwr", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0074@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hdmi_tx lcdif read from ddr", + "MetricName": "imx8mp_ddr_read.hdmi_lcdif", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0075@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hdmi_tx lcdif write to ddr", + "MetricName": "imx8mp_ddr_write.hdmi_lcdif", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0075@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hdmi_tx tx_hdcp read from ddr", + "MetricName": "imx8mp_ddr_read.hdmi_hdcp", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0076@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of hdmi_tx tx_hdcp write to ddr", + "MetricName": "imx8mp_ddr_write.hdmi_hdcp", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0076@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio dsp read from ddr", + "MetricName": "imx8mp_ddr_read.audio_dsp", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0041@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio dsp write to ddr", + "MetricName": "imx8mp_ddr_write.audio_dsp", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0041@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio sdma2_per read from ddr", + "MetricName": "imx8mp_ddr_read.audio_sdma2_per", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0062@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio sdma2_per write to ddr", + "MetricName": "imx8mp_ddr_write.audio_sdma2_per", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0062@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio sdma2_burst read from ddr", + "MetricName": "imx8mp_ddr_read.audio_sdma2_burst", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0063@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio sdma2_burst write to ddr", + "MetricName": "imx8mp_ddr_write.audio_sdma2_burst", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0063@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio sdma3_per read from ddr", + "MetricName": "imx8mp_ddr_read.audio_sdma3_per", + "MetricExpr": "imx8_ddr0@axid\\-read\\,axi_mask\\=0x0000\\,axi_id\\=0x0064@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio sdma3_per write to ddr", + "MetricName": "imx8mp_ddr_write.audio_sdma3_per", + "MetricExpr": "imx8_ddr0@axid\\-write\\,axi_mask\\=0x0000\\,axi_id\\=0x0064@", + "ScaleUnit": "9.765625e-4KB", + "Unit": "imx8_ddr", + "Compat": "i.MX8MP" + }, + { + "BriefDescription": "bytes of audio sdma3_burst read from ddr", + 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