* [PATCH v2 0/5] add imx94 DDR Performance Monitor support
@ 2025-08-21 11:01 Xu Yang
2025-08-21 11:01 ` [PATCH v2 1/5] dt-bindings: perf: fsl-imx-ddr: Add a compatible string fsl,imx94-ddr-pmu for i.MX94 Xu Yang
` (5 more replies)
0 siblings, 6 replies; 15+ messages in thread
From: Xu Yang @ 2025-08-21 11:01 UTC (permalink / raw)
To: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Ian Rogers, Adrian Hunter
Cc: linux-arm-kernel, linux-perf-users, devicetree, imx, Peng Fan,
Frank Li, Conor Dooley, Xu Yang
The i.MX94 Soc has a DDR Performance Monitor Unit (PMU), this will
add support for it.
---
Changes in v2:
- add review and ack tag
- improve some subject and commit message, fix typo as suggested by Frank
- Link to v1: https://lore.kernel.org/r/20250815-imx94-ddr-pmu-v1-0-edb22be0b997@nxp.com
---
Xu Yang (5):
dt-bindings: perf: fsl-imx-ddr: Add a compatible string fsl,imx94-ddr-pmu for i.MX94
perf: imx_perf: add support for i.MX94 platform
perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics
MAINTAINERS: include fsl_imx9_ddr_perf.c and some perf metric files
arm64: dts: imx94: add DDR Perf Monitor node
.../devicetree/bindings/perf/fsl-imx-ddr.yaml | 1 +
MAINTAINERS | 3 +
arch/arm64/boot/dts/freescale/imx94.dtsi | 6 +
drivers/perf/fsl_imx9_ddr_perf.c | 6 +
.../arch/arm64/freescale/imx94/sys/ddrc.json | 9 +
.../arch/arm64/freescale/imx94/sys/metrics.json | 450 +++++++++++++++++++++
6 files changed, 475 insertions(+)
---
base-commit: 2a2b302fb15ebea4da71e3fe2943e61a1c83cde9
change-id: 20250815-imx94-ddr-pmu-14df6248e65e
Best regards,
--
Xu Yang <xu.yang_2@nxp.com>
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH v2 1/5] dt-bindings: perf: fsl-imx-ddr: Add a compatible string fsl,imx94-ddr-pmu for i.MX94
2025-08-21 11:01 [PATCH v2 0/5] add imx94 DDR Performance Monitor support Xu Yang
@ 2025-08-21 11:01 ` Xu Yang
2025-08-21 11:01 ` [PATCH v2 2/5] perf: imx_perf: add support for i.MX94 platform Xu Yang
` (4 subsequent siblings)
5 siblings, 0 replies; 15+ messages in thread
From: Xu Yang @ 2025-08-21 11:01 UTC (permalink / raw)
To: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Ian Rogers, Adrian Hunter
Cc: linux-arm-kernel, linux-perf-users, devicetree, imx, Peng Fan,
Frank Li, Conor Dooley, Xu Yang
i.MX94 has a DDR Performance Monitor Unit which is compatible with i.MX93.
This will add a compatible for i.MX94.
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
---
Changes in v2:
- modify subject
---
Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
index 8597ea625edba5d0e2a3373ae6cd45bb1ba351cc..d2e578d6b83b8847c7a0ca9d5aeb208a90e2fa6a 100644
--- a/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
+++ b/Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
@@ -33,6 +33,7 @@ properties:
- items:
- enum:
- fsl,imx91-ddr-pmu
+ - fsl,imx94-ddr-pmu
- fsl,imx95-ddr-pmu
- const: fsl,imx93-ddr-pmu
--
2.34.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 2/5] perf: imx_perf: add support for i.MX94 platform
2025-08-21 11:01 [PATCH v2 0/5] add imx94 DDR Performance Monitor support Xu Yang
2025-08-21 11:01 ` [PATCH v2 1/5] dt-bindings: perf: fsl-imx-ddr: Add a compatible string fsl,imx94-ddr-pmu for i.MX94 Xu Yang
@ 2025-08-21 11:01 ` Xu Yang
2025-08-21 11:01 ` [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics Xu Yang
` (3 subsequent siblings)
5 siblings, 0 replies; 15+ messages in thread
From: Xu Yang @ 2025-08-21 11:01 UTC (permalink / raw)
To: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Ian Rogers, Adrian Hunter
Cc: linux-arm-kernel, linux-perf-users, devicetree, imx, Peng Fan,
Frank Li, Xu Yang
Add compatible string and related devtype for i.MX94 platform.
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
---
Changes in v2:
- modify commit message
---
drivers/perf/fsl_imx9_ddr_perf.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/perf/fsl_imx9_ddr_perf.c b/drivers/perf/fsl_imx9_ddr_perf.c
index 267754fdf581469642c4485c28a2b00050fe785f..7050b48c04671759e8cad0e93359c088a2bf342a 100644
--- a/drivers/perf/fsl_imx9_ddr_perf.c
+++ b/drivers/perf/fsl_imx9_ddr_perf.c
@@ -104,6 +104,11 @@ static const struct imx_ddr_devtype_data imx93_devtype_data = {
.filter_ver = DDR_PERF_AXI_FILTER_V1
};
+static const struct imx_ddr_devtype_data imx94_devtype_data = {
+ .identifier = "imx94",
+ .filter_ver = DDR_PERF_AXI_FILTER_V2
+};
+
static const struct imx_ddr_devtype_data imx95_devtype_data = {
.identifier = "imx95",
.filter_ver = DDR_PERF_AXI_FILTER_V2
@@ -122,6 +127,7 @@ static inline bool axi_filter_v2(struct ddr_pmu *pmu)
static const struct of_device_id imx_ddr_pmu_dt_ids[] = {
{ .compatible = "fsl,imx91-ddr-pmu", .data = &imx91_devtype_data },
{ .compatible = "fsl,imx93-ddr-pmu", .data = &imx93_devtype_data },
+ { .compatible = "fsl,imx94-ddr-pmu", .data = &imx94_devtype_data },
{ .compatible = "fsl,imx95-ddr-pmu", .data = &imx95_devtype_data },
{ /* sentinel */ }
};
--
2.34.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics
2025-08-21 11:01 [PATCH v2 0/5] add imx94 DDR Performance Monitor support Xu Yang
2025-08-21 11:01 ` [PATCH v2 1/5] dt-bindings: perf: fsl-imx-ddr: Add a compatible string fsl,imx94-ddr-pmu for i.MX94 Xu Yang
2025-08-21 11:01 ` [PATCH v2 2/5] perf: imx_perf: add support for i.MX94 platform Xu Yang
@ 2025-08-21 11:01 ` Xu Yang
2025-11-04 6:33 ` Xu Yang
2025-11-04 17:40 ` Ian Rogers
2025-08-21 11:01 ` [PATCH v2 4/5] MAINTAINERS: include fsl_imx9_ddr_perf.c and some perf metric files Xu Yang
` (2 subsequent siblings)
5 siblings, 2 replies; 15+ messages in thread
From: Xu Yang @ 2025-08-21 11:01 UTC (permalink / raw)
To: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Ian Rogers, Adrian Hunter
Cc: linux-arm-kernel, linux-perf-users, devicetree, imx, Peng Fan,
Frank Li, Xu Yang
Add JSON metrics for i.MX94 DDR Performance Monitor.
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
---
Changes in v2:
- add Rb tag
---
.../arch/arm64/freescale/imx94/sys/ddrc.json | 9 +
.../arch/arm64/freescale/imx94/sys/metrics.json | 450 +++++++++++++++++++++
2 files changed, 459 insertions(+)
diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
new file mode 100644
index 0000000000000000000000000000000000000000..aa7b58721dc7e23dc9d9905a79e0c1778b7bbf11
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
@@ -0,0 +1,9 @@
+[
+ {
+ "BriefDescription": "ddr cycles event",
+ "EventCode": "0x00",
+ "EventName": "imx94_ddr.cycles",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
new file mode 100644
index 0000000000000000000000000000000000000000..629f1f52761e2210ef43a9cbba175871817e1230
--- /dev/null
+++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
@@ -0,0 +1,450 @@
+[
+ {
+ "BriefDescription": "bandwidth usage for lpddr5 evk board",
+ "MetricName": "imx94_bandwidth_usage.lpddr5",
+ "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
+ "ScaleUnit": "1e2%",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bandwidth usage for lpddr4 evk board",
+ "MetricName": "imx94_bandwidth_usage.lpddr4",
+ "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
+ "ScaleUnit": "1e2%",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of all masters read from ddr",
+ "MetricName": "imx94_ddr_read.all",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of all masters write to ddr",
+ "MetricName": "imx94_ddr_write.all",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of all a55 read from ddr",
+ "MetricName": "imx94_ddr_read.a55_all",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3fc\\,axi_id\\=0x000@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of all a55 write from ddr",
+ "MetricName": "imx94_ddr_write.a55_all",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3fc\\,axi_id\\=0x000@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of a55 core 0 read from ddr",
+ "MetricName": "imx94_ddr_read.a55_0",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3ff\\,axi_id\\=0x000@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of a55 core 0 write to ddr",
+ "MetricName": "imx94_ddr_write.a55_0",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3ff\\,axi_id\\=0x000@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of a55 core 1 read from ddr",
+ "MetricName": "imx94_ddr_read.a55_1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x001@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of a55 core 1 write to ddr",
+ "MetricName": "imx94_ddr_write.a55_1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x001@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of a55 core 2 read from ddr",
+ "MetricName": "imx94_ddr_read.a55_2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x002@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of a55 core 2 write to ddr",
+ "MetricName": "imx94_ddr_write.a55_2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x002@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of a55 core 3 read from ddr",
+ "MetricName": "imx94_ddr_read.a55_3",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x003@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of a55 core 3 write to ddr",
+ "MetricName": "imx94_ddr_write.a55_3",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x003@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of m7 core1 read from ddr",
+ "MetricName": "imx94_ddr_read.m7_1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x004@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of m7 core1 write to ddr",
+ "MetricName": "imx94_ddr_write.m7_1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x004@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of m33 core1 (in netc) read from ddr",
+ "MetricName": "imx94_ddr_read.m33_1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x005@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of m33 core1 (in netc) write to ddr",
+ "MetricName": "imx94_ddr_write.m33_1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x005@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of pcie2 read from ddr",
+ "MetricName": "imx94_ddr_read.pcie2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x006@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of pcie2 write to ddr",
+ "MetricName": "imx94_ddr_write.pcie2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x006@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of Cortex-A DSU L3 evicted/ACP transactions read from ddr",
+ "MetricName": "imx94_ddr_read.cortex_a_dsu",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x007@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of Cortex-A DSU L3 evicted/ACP transactions write to ddr",
+ "MetricName": "imx94_ddr_write.cortex_a_dsu",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x007@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of m33 core0 read from ddr",
+ "MetricName": "imx94_ddr_read.m33_0",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x008@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of m33 core0 write to ddr",
+ "MetricName": "imx94_ddr_write.m33_0",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x008@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of m7 core0 read from ddr",
+ "MetricName": "imx94_ddr_read.m7_0",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x009@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of m7 core0 write to ddr",
+ "MetricName": "imx94_ddr_write.m7_0",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x009@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of sentinel read from ddr",
+ "MetricName": "imx94_ddr_read.sentinel",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x00a@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of sentinel write to ddr",
+ "MetricName": "imx94_ddr_write.sentinel",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00a@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of edma1 read from ddr",
+ "MetricName": "imx94_ddr_read.edma1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x00b@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of edma1 write to ddr",
+ "MetricName": "imx94_ddr_write.edma1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00b@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of edma2 read from ddr",
+ "MetricName": "imx94_ddr_read.edma2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x00c@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of edma2 write to ddr",
+ "MetricName": "imx94_ddr_write.edma2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00c@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of netc read from ddr",
+ "MetricName": "imx94_ddr_read.netc",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x00d@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of netc write to ddr",
+ "MetricName": "imx94_ddr_write.netc",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00d@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of aonmix read from ddr",
+ "MetricName": "imx94_ddr_read.aonmix",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x00f@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of aonmix write to ddr",
+ "MetricName": "imx94_ddr_write.aonmix",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00f@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of npumix read from ddr",
+ "MetricName": "imx94_ddr_read.npumix",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x010@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of npumix write to ddr",
+ "MetricName": "imx94_ddr_write.npumix",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x010@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usdhc1 read from ddr",
+ "MetricName": "imx94_ddr_read.usdhc1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x0b0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usdhc1 write to ddr",
+ "MetricName": "imx94_ddr_write.usdhc1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0b0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usdhc2 read from ddr",
+ "MetricName": "imx94_ddr_read.usdhc2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x0c0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usdhc2 write to ddr",
+ "MetricName": "imx94_ddr_write.usdhc2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0c0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usdhc3 read from ddr",
+ "MetricName": "imx94_ddr_read.usdhc3",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x0d0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usdhc3 write to ddr",
+ "MetricName": "imx94_ddr_write.usdhc3",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0d0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of xspi read from ddr",
+ "MetricName": "imx94_ddr_read.xspi",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x0f0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of xspi write to ddr",
+ "MetricName": "imx94_ddr_write.xspi",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0f0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of pcie1 read from ddr",
+ "MetricName": "imx94_ddr_read.pcie1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x100@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of pcie1 write to ddr",
+ "MetricName": "imx94_ddr_write.pcie1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x100@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usb1 read from ddr",
+ "MetricName": "imx94_ddr_read.usb1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x140@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usb1 write to ddr",
+ "MetricName": "imx94_ddr_write.usb1",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x140@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usb2 read from ddr",
+ "MetricName": "imx94_ddr_read.usb2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x150@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of usb2 write to ddr",
+ "MetricName": "imx94_ddr_write.usb2",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x150@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of pxp read from ddr",
+ "MetricName": "imx94_ddr_read.pxp",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x2a0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of pxp write to ddr",
+ "MetricName": "imx94_ddr_write.pxp",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x2a0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of dcif read from ddr",
+ "MetricName": "imx94_ddr_read.dcif",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x2b0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ },
+ {
+ "BriefDescription": "bytes of dcif write to ddr",
+ "MetricName": "imx94_ddr_write.dcif",
+ "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x2b0@ ) * 32",
+ "ScaleUnit": "9.765625e-4KB",
+ "Unit": "imx9_ddr",
+ "Compat": "imx94"
+ }
+]
--
2.34.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 4/5] MAINTAINERS: include fsl_imx9_ddr_perf.c and some perf metric files
2025-08-21 11:01 [PATCH v2 0/5] add imx94 DDR Performance Monitor support Xu Yang
` (2 preceding siblings ...)
2025-08-21 11:01 ` [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics Xu Yang
@ 2025-08-21 11:01 ` Xu Yang
2025-08-21 11:01 ` [PATCH v2 5/5] arm64: dts: imx94: add DDR Perf Monitor node Xu Yang
2025-09-18 16:43 ` [PATCH v2 0/5] add imx94 DDR Performance Monitor support Will Deacon
5 siblings, 0 replies; 15+ messages in thread
From: Xu Yang @ 2025-08-21 11:01 UTC (permalink / raw)
To: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Ian Rogers, Adrian Hunter
Cc: linux-arm-kernel, linux-perf-users, devicetree, imx, Frank Li,
Xu Yang
The fsl_imx9_ddr_perf.c and some perf metric files under
tools/perf/pmu-events/arch/arm64/freescale/ is missing in MAINTAINERS.
Add them and add me as another maintainer.
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
---
Changes in v2:
- add Rb tag
---
MAINTAINERS | 3 +++
1 file changed, 3 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 5eeeef7bf25500987bc1a278758c82c1c68a55a0..163d6591f169d250a77c8c27cc78e0e9b25cefb6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9780,11 +9780,14 @@ F: drivers/video/fbdev/imxfb.c
FREESCALE IMX DDR PMU DRIVER
M: Frank Li <Frank.li@nxp.com>
+M: Xu Yang <xu.yang_2@nxp.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: Documentation/admin-guide/perf/imx-ddr.rst
F: Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml
F: drivers/perf/fsl_imx8_ddr_perf.c
+F: drivers/perf/fsl_imx9_ddr_perf.c
+F: tools/perf/pmu-events/arch/arm64/freescale/
FREESCALE IMX I2C DRIVER
M: Oleksij Rempel <o.rempel@pengutronix.de>
--
2.34.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH v2 5/5] arm64: dts: imx94: add DDR Perf Monitor node
2025-08-21 11:01 [PATCH v2 0/5] add imx94 DDR Performance Monitor support Xu Yang
` (3 preceding siblings ...)
2025-08-21 11:01 ` [PATCH v2 4/5] MAINTAINERS: include fsl_imx9_ddr_perf.c and some perf metric files Xu Yang
@ 2025-08-21 11:01 ` Xu Yang
2025-08-21 14:51 ` Frank Li
2025-10-20 10:01 ` Shawn Guo
2025-09-18 16:43 ` [PATCH v2 0/5] add imx94 DDR Performance Monitor support Will Deacon
5 siblings, 2 replies; 15+ messages in thread
From: Xu Yang @ 2025-08-21 11:01 UTC (permalink / raw)
To: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Ian Rogers, Adrian Hunter
Cc: linux-arm-kernel, linux-perf-users, devicetree, imx, Xu Yang
Add DDR Perf Monitor for i.MX94.
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
---
Changes in v2:
- fix typo
---
arch/arm64/boot/dts/freescale/imx94.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx94.dtsi b/arch/arm64/boot/dts/freescale/imx94.dtsi
index 44dee2cbd42d4bc765c33a9ce663ceda095b6c66..6a2d86d67200facec76a7880b4a2268b4191452c 100644
--- a/arch/arm64/boot/dts/freescale/imx94.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx94.dtsi
@@ -1188,5 +1188,11 @@ wdog3: watchdog@49220000 {
status = "disabled";
};
};
+
+ ddr-pmu@4e090dc0 {
+ compatible = "fsl,imx94-ddr-pmu", "fsl,imx93-ddr-pmu";
+ reg = <0x0 0x4e090dc0 0x0 0x200>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+ };
};
};
--
2.34.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH v2 5/5] arm64: dts: imx94: add DDR Perf Monitor node
2025-08-21 11:01 ` [PATCH v2 5/5] arm64: dts: imx94: add DDR Perf Monitor node Xu Yang
@ 2025-08-21 14:51 ` Frank Li
2025-10-20 10:01 ` Shawn Guo
1 sibling, 0 replies; 15+ messages in thread
From: Frank Li @ 2025-08-21 14:51 UTC (permalink / raw)
To: Xu Yang
Cc: Will Deacon, Mark Rutland, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, John Garry, James Clark, Mike Leach, Leo Yan,
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo,
Namhyung Kim, Alexander Shishkin, Jiri Olsa, Ian Rogers,
Adrian Hunter, linux-arm-kernel, linux-perf-users, devicetree,
imx
On Thu, Aug 21, 2025 at 07:01:53PM +0800, Xu Yang wrote:
> Add DDR Perf Monitor for i.MX94.
>
> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
>
> ---
> Changes in v2:
> - fix typo
> ---
> arch/arm64/boot/dts/freescale/imx94.dtsi | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx94.dtsi b/arch/arm64/boot/dts/freescale/imx94.dtsi
> index 44dee2cbd42d4bc765c33a9ce663ceda095b6c66..6a2d86d67200facec76a7880b4a2268b4191452c 100644
> --- a/arch/arm64/boot/dts/freescale/imx94.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx94.dtsi
> @@ -1188,5 +1188,11 @@ wdog3: watchdog@49220000 {
> status = "disabled";
> };
> };
> +
> + ddr-pmu@4e090dc0 {
> + compatible = "fsl,imx94-ddr-pmu", "fsl,imx93-ddr-pmu";
> + reg = <0x0 0x4e090dc0 0x0 0x200>;
> + interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
> + };
> };
> };
>
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 0/5] add imx94 DDR Performance Monitor support
2025-08-21 11:01 [PATCH v2 0/5] add imx94 DDR Performance Monitor support Xu Yang
` (4 preceding siblings ...)
2025-08-21 11:01 ` [PATCH v2 5/5] arm64: dts: imx94: add DDR Perf Monitor node Xu Yang
@ 2025-09-18 16:43 ` Will Deacon
2025-09-26 2:55 ` Xu Yang
5 siblings, 1 reply; 15+ messages in thread
From: Will Deacon @ 2025-09-18 16:43 UTC (permalink / raw)
To: Frank Li, Mark Rutland, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Shawn Guo, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, John Garry, James Clark, Mike Leach, Leo Yan,
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo,
Namhyung Kim, Alexander Shishkin, Jiri Olsa, Ian Rogers,
Adrian Hunter, Xu Yang
Cc: catalin.marinas, kernel-team, Will Deacon, linux-arm-kernel,
linux-perf-users, devicetree, imx, Peng Fan, Frank Li,
Conor Dooley
On Thu, 21 Aug 2025 19:01:48 +0800, Xu Yang wrote:
> The i.MX94 Soc has a DDR Performance Monitor Unit (PMU), this will
> add support for it.
>
Applied drivers and bindings updates to will (for-next/perf), thanks!
You'll need to route the .dts and tools changes via their respective
trees.
[1/5] dt-bindings: perf: fsl-imx-ddr: Add a compatible string fsl,imx94-ddr-pmu for i.MX94
https://git.kernel.org/will/c/f8cc02321bfc
[2/5] perf: imx_perf: add support for i.MX94 platform
https://git.kernel.org/will/c/e4d9e8fb406b
[4/5] MAINTAINERS: include fsl_imx9_ddr_perf.c and some perf metric files
https://git.kernel.org/will/c/2c599c68c43e
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 0/5] add imx94 DDR Performance Monitor support
2025-09-18 16:43 ` [PATCH v2 0/5] add imx94 DDR Performance Monitor support Will Deacon
@ 2025-09-26 2:55 ` Xu Yang
0 siblings, 0 replies; 15+ messages in thread
From: Xu Yang @ 2025-09-26 2:55 UTC (permalink / raw)
To: Will Deacon, Shawn Guo, Namhyung Kim
Cc: Frank Li, Mark Rutland, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, Sascha Hauer, Pengutronix Kernel Team,
Fabio Estevam, John Garry, James Clark, Mike Leach, Leo Yan,
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo,
Alexander Shishkin, Jiri Olsa, Ian Rogers, Adrian Hunter,
catalin.marinas, kernel-team, linux-arm-kernel, linux-perf-users,
devicetree, imx, Peng Fan, Conor Dooley
Hi Shawn and Namhyung,
Could you pick up below two patches?
[3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics
[5/5] arm64: dts: imx94: add DDR Perf Monitor node
On Thu, Sep 18, 2025 at 05:43:10PM +0100, Will Deacon wrote:
> On Thu, 21 Aug 2025 19:01:48 +0800, Xu Yang wrote:
> > The i.MX94 Soc has a DDR Performance Monitor Unit (PMU), this will
> > add support for it.
> >
>
> Applied drivers and bindings updates to will (for-next/perf), thanks!
>
> You'll need to route the .dts and tools changes via their respective
> trees.
Thank you Will Deacon!
Thanks,
Xu Yang
>
> [1/5] dt-bindings: perf: fsl-imx-ddr: Add a compatible string fsl,imx94-ddr-pmu for i.MX94
> https://git.kernel.org/will/c/f8cc02321bfc
> [2/5] perf: imx_perf: add support for i.MX94 platform
> https://git.kernel.org/will/c/e4d9e8fb406b
>
> [4/5] MAINTAINERS: include fsl_imx9_ddr_perf.c and some perf metric files
> https://git.kernel.org/will/c/2c599c68c43e
>
> Cheers,
> --
> Will
>
> https://fixes.arm64.dev
> https://next.arm64.dev
> https://will.arm64.dev
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 5/5] arm64: dts: imx94: add DDR Perf Monitor node
2025-08-21 11:01 ` [PATCH v2 5/5] arm64: dts: imx94: add DDR Perf Monitor node Xu Yang
2025-08-21 14:51 ` Frank Li
@ 2025-10-20 10:01 ` Shawn Guo
1 sibling, 0 replies; 15+ messages in thread
From: Shawn Guo @ 2025-10-20 10:01 UTC (permalink / raw)
To: Xu Yang
Cc: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Ian Rogers, Adrian Hunter, linux-arm-kernel,
linux-perf-users, devicetree, imx
On Thu, Aug 21, 2025 at 07:01:53PM +0800, Xu Yang wrote:
> Add DDR Perf Monitor for i.MX94.
>
> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Applied, thanks!
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics
2025-08-21 11:01 ` [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics Xu Yang
@ 2025-11-04 6:33 ` Xu Yang
2025-11-07 1:47 ` Namhyung Kim
2025-11-04 17:40 ` Ian Rogers
1 sibling, 1 reply; 15+ messages in thread
From: Xu Yang @ 2025-11-04 6:33 UTC (permalink / raw)
To: Namhyung Kim
Cc: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Ian Rogers, Adrian Hunter, linux-arm-kernel,
linux-perf-users, devicetree, imx, Peng Fan
Hi Namhyung,
Could you please take this one?
Thanks,
Xu Yang
On Thu, Aug 21, 2025 at 07:01:51PM +0800, Xu Yang wrote:
> Add JSON metrics for i.MX94 DDR Performance Monitor.
>
> Reviewed-by: Peng Fan <peng.fan@nxp.com>
> Reviewed-by: Frank Li <Frank.Li@nxp.com>
> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
>
> ---
> Changes in v2:
> - add Rb tag
> ---
> .../arch/arm64/freescale/imx94/sys/ddrc.json | 9 +
> .../arch/arm64/freescale/imx94/sys/metrics.json | 450 +++++++++++++++++++++
> 2 files changed, 459 insertions(+)
>
> diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
> new file mode 100644
> index 0000000000000000000000000000000000000000..aa7b58721dc7e23dc9d9905a79e0c1778b7bbf11
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
> @@ -0,0 +1,9 @@
> +[
> + {
> + "BriefDescription": "ddr cycles event",
> + "EventCode": "0x00",
> + "EventName": "imx94_ddr.cycles",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + }
> +]
> diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
> new file mode 100644
> index 0000000000000000000000000000000000000000..629f1f52761e2210ef43a9cbba175871817e1230
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
> @@ -0,0 +1,450 @@
> +[
> + {
> + "BriefDescription": "bandwidth usage for lpddr5 evk board",
> + "MetricName": "imx94_bandwidth_usage.lpddr5",
> + "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
> + "ScaleUnit": "1e2%",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bandwidth usage for lpddr4 evk board",
> + "MetricName": "imx94_bandwidth_usage.lpddr4",
> + "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
> + "ScaleUnit": "1e2%",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of all masters read from ddr",
> + "MetricName": "imx94_ddr_read.all",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of all masters write to ddr",
> + "MetricName": "imx94_ddr_write.all",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of all a55 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_all",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3fc\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of all a55 write from ddr",
> + "MetricName": "imx94_ddr_write.a55_all",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3fc\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 0 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3ff\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 0 write to ddr",
> + "MetricName": "imx94_ddr_write.a55_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3ff\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 1 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x001@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 1 write to ddr",
> + "MetricName": "imx94_ddr_write.a55_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x001@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 2 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x002@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 2 write to ddr",
> + "MetricName": "imx94_ddr_write.a55_2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x002@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 3 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_3",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x003@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 3 write to ddr",
> + "MetricName": "imx94_ddr_write.a55_3",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x003@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m7 core1 read from ddr",
> + "MetricName": "imx94_ddr_read.m7_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x004@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m7 core1 write to ddr",
> + "MetricName": "imx94_ddr_write.m7_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x004@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m33 core1 (in netc) read from ddr",
> + "MetricName": "imx94_ddr_read.m33_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x005@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m33 core1 (in netc) write to ddr",
> + "MetricName": "imx94_ddr_write.m33_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x005@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pcie2 read from ddr",
> + "MetricName": "imx94_ddr_read.pcie2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x006@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pcie2 write to ddr",
> + "MetricName": "imx94_ddr_write.pcie2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x006@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of Cortex-A DSU L3 evicted/ACP transactions read from ddr",
> + "MetricName": "imx94_ddr_read.cortex_a_dsu",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x007@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of Cortex-A DSU L3 evicted/ACP transactions write to ddr",
> + "MetricName": "imx94_ddr_write.cortex_a_dsu",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x007@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m33 core0 read from ddr",
> + "MetricName": "imx94_ddr_read.m33_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x008@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m33 core0 write to ddr",
> + "MetricName": "imx94_ddr_write.m33_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x008@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m7 core0 read from ddr",
> + "MetricName": "imx94_ddr_read.m7_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x009@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m7 core0 write to ddr",
> + "MetricName": "imx94_ddr_write.m7_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x009@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of sentinel read from ddr",
> + "MetricName": "imx94_ddr_read.sentinel",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x00a@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of sentinel write to ddr",
> + "MetricName": "imx94_ddr_write.sentinel",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00a@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of edma1 read from ddr",
> + "MetricName": "imx94_ddr_read.edma1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x00b@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of edma1 write to ddr",
> + "MetricName": "imx94_ddr_write.edma1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00b@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of edma2 read from ddr",
> + "MetricName": "imx94_ddr_read.edma2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x00c@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of edma2 write to ddr",
> + "MetricName": "imx94_ddr_write.edma2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00c@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of netc read from ddr",
> + "MetricName": "imx94_ddr_read.netc",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x00d@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of netc write to ddr",
> + "MetricName": "imx94_ddr_write.netc",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00d@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of aonmix read from ddr",
> + "MetricName": "imx94_ddr_read.aonmix",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x00f@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of aonmix write to ddr",
> + "MetricName": "imx94_ddr_write.aonmix",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00f@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of npumix read from ddr",
> + "MetricName": "imx94_ddr_read.npumix",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x010@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of npumix write to ddr",
> + "MetricName": "imx94_ddr_write.npumix",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x010@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc1 read from ddr",
> + "MetricName": "imx94_ddr_read.usdhc1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x0b0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc1 write to ddr",
> + "MetricName": "imx94_ddr_write.usdhc1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0b0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc2 read from ddr",
> + "MetricName": "imx94_ddr_read.usdhc2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x0c0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc2 write to ddr",
> + "MetricName": "imx94_ddr_write.usdhc2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0c0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc3 read from ddr",
> + "MetricName": "imx94_ddr_read.usdhc3",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x0d0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc3 write to ddr",
> + "MetricName": "imx94_ddr_write.usdhc3",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0d0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of xspi read from ddr",
> + "MetricName": "imx94_ddr_read.xspi",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x0f0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of xspi write to ddr",
> + "MetricName": "imx94_ddr_write.xspi",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0f0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pcie1 read from ddr",
> + "MetricName": "imx94_ddr_read.pcie1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x100@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pcie1 write to ddr",
> + "MetricName": "imx94_ddr_write.pcie1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x100@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usb1 read from ddr",
> + "MetricName": "imx94_ddr_read.usb1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x140@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usb1 write to ddr",
> + "MetricName": "imx94_ddr_write.usb1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x140@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usb2 read from ddr",
> + "MetricName": "imx94_ddr_read.usb2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x150@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usb2 write to ddr",
> + "MetricName": "imx94_ddr_write.usb2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x150@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pxp read from ddr",
> + "MetricName": "imx94_ddr_read.pxp",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x2a0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pxp write to ddr",
> + "MetricName": "imx94_ddr_write.pxp",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x2a0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of dcif read from ddr",
> + "MetricName": "imx94_ddr_read.dcif",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x2b0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of dcif write to ddr",
> + "MetricName": "imx94_ddr_write.dcif",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x2b0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + }
> +]
>
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics
2025-08-21 11:01 ` [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics Xu Yang
2025-11-04 6:33 ` Xu Yang
@ 2025-11-04 17:40 ` Ian Rogers
2025-11-07 2:55 ` Xu Yang
1 sibling, 1 reply; 15+ messages in thread
From: Ian Rogers @ 2025-11-04 17:40 UTC (permalink / raw)
To: Xu Yang
Cc: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Adrian Hunter, linux-arm-kernel, linux-perf-users,
devicetree, imx, Peng Fan
On Thu, Aug 21, 2025 at 4:02 AM Xu Yang <xu.yang_2@nxp.com> wrote:
>
> Add JSON metrics for i.MX94 DDR Performance Monitor.
>
> Reviewed-by: Peng Fan <peng.fan@nxp.com>
> Reviewed-by: Frank Li <Frank.Li@nxp.com>
> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Acked-by: Ian Rogers <irogers@google.com>
> ---
> Changes in v2:
> - add Rb tag
> ---
> .../arch/arm64/freescale/imx94/sys/ddrc.json | 9 +
> .../arch/arm64/freescale/imx94/sys/metrics.json | 450 +++++++++++++++++++++
> 2 files changed, 459 insertions(+)
>
> diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
> new file mode 100644
> index 0000000000000000000000000000000000000000..aa7b58721dc7e23dc9d9905a79e0c1778b7bbf11
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
> @@ -0,0 +1,9 @@
> +[
> + {
> + "BriefDescription": "ddr cycles event",
> + "EventCode": "0x00",
> + "EventName": "imx94_ddr.cycles",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + }
> +]
> diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
> new file mode 100644
> index 0000000000000000000000000000000000000000..629f1f52761e2210ef43a9cbba175871817e1230
> --- /dev/null
> +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
> @@ -0,0 +1,450 @@
> +[
> + {
> + "BriefDescription": "bandwidth usage for lpddr5 evk board",
> + "MetricName": "imx94_bandwidth_usage.lpddr5",
> + "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
nit: It is possible to have metrics use other metrics, this may read
better as (although I can't recall if the '.' needs escaping - I'm not
sure if the 4266 is significant):
((imx94_ddr_read.all + imx94_ddr_write.all) / duration_time) / 17064e6
> + "ScaleUnit": "1e2%",
nit: I think this would read more easily as "100%"
Thanks,
Ian
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bandwidth usage for lpddr4 evk board",
> + "MetricName": "imx94_bandwidth_usage.lpddr4",
> + "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
> + "ScaleUnit": "1e2%",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of all masters read from ddr",
> + "MetricName": "imx94_ddr_read.all",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of all masters write to ddr",
> + "MetricName": "imx94_ddr_write.all",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of all a55 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_all",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3fc\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of all a55 write from ddr",
> + "MetricName": "imx94_ddr_write.a55_all",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3fc\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 0 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3ff\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 0 write to ddr",
> + "MetricName": "imx94_ddr_write.a55_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3ff\\,axi_id\\=0x000@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 1 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x001@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 1 write to ddr",
> + "MetricName": "imx94_ddr_write.a55_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x001@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 2 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x002@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 2 write to ddr",
> + "MetricName": "imx94_ddr_write.a55_2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x002@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 3 read from ddr",
> + "MetricName": "imx94_ddr_read.a55_3",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x003@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of a55 core 3 write to ddr",
> + "MetricName": "imx94_ddr_write.a55_3",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x003@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m7 core1 read from ddr",
> + "MetricName": "imx94_ddr_read.m7_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x004@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m7 core1 write to ddr",
> + "MetricName": "imx94_ddr_write.m7_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x004@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m33 core1 (in netc) read from ddr",
> + "MetricName": "imx94_ddr_read.m33_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x005@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m33 core1 (in netc) write to ddr",
> + "MetricName": "imx94_ddr_write.m33_1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x005@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pcie2 read from ddr",
> + "MetricName": "imx94_ddr_read.pcie2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x006@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pcie2 write to ddr",
> + "MetricName": "imx94_ddr_write.pcie2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x006@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of Cortex-A DSU L3 evicted/ACP transactions read from ddr",
> + "MetricName": "imx94_ddr_read.cortex_a_dsu",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x007@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of Cortex-A DSU L3 evicted/ACP transactions write to ddr",
> + "MetricName": "imx94_ddr_write.cortex_a_dsu",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x007@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m33 core0 read from ddr",
> + "MetricName": "imx94_ddr_read.m33_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x008@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m33 core0 write to ddr",
> + "MetricName": "imx94_ddr_write.m33_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x008@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m7 core0 read from ddr",
> + "MetricName": "imx94_ddr_read.m7_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x009@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of m7 core0 write to ddr",
> + "MetricName": "imx94_ddr_write.m7_0",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x009@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of sentinel read from ddr",
> + "MetricName": "imx94_ddr_read.sentinel",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x00a@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of sentinel write to ddr",
> + "MetricName": "imx94_ddr_write.sentinel",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00a@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of edma1 read from ddr",
> + "MetricName": "imx94_ddr_read.edma1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x00b@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of edma1 write to ddr",
> + "MetricName": "imx94_ddr_write.edma1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00b@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of edma2 read from ddr",
> + "MetricName": "imx94_ddr_read.edma2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x00c@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of edma2 write to ddr",
> + "MetricName": "imx94_ddr_write.edma2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00c@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of netc read from ddr",
> + "MetricName": "imx94_ddr_read.netc",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x00d@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of netc write to ddr",
> + "MetricName": "imx94_ddr_write.netc",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00d@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of aonmix read from ddr",
> + "MetricName": "imx94_ddr_read.aonmix",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x00f@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of aonmix write to ddr",
> + "MetricName": "imx94_ddr_write.aonmix",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00f@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of npumix read from ddr",
> + "MetricName": "imx94_ddr_read.npumix",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x010@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of npumix write to ddr",
> + "MetricName": "imx94_ddr_write.npumix",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x010@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc1 read from ddr",
> + "MetricName": "imx94_ddr_read.usdhc1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x0b0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc1 write to ddr",
> + "MetricName": "imx94_ddr_write.usdhc1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0b0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc2 read from ddr",
> + "MetricName": "imx94_ddr_read.usdhc2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x0c0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc2 write to ddr",
> + "MetricName": "imx94_ddr_write.usdhc2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0c0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc3 read from ddr",
> + "MetricName": "imx94_ddr_read.usdhc3",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x0d0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usdhc3 write to ddr",
> + "MetricName": "imx94_ddr_write.usdhc3",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0d0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of xspi read from ddr",
> + "MetricName": "imx94_ddr_read.xspi",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x0f0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of xspi write to ddr",
> + "MetricName": "imx94_ddr_write.xspi",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0f0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pcie1 read from ddr",
> + "MetricName": "imx94_ddr_read.pcie1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x100@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pcie1 write to ddr",
> + "MetricName": "imx94_ddr_write.pcie1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x100@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usb1 read from ddr",
> + "MetricName": "imx94_ddr_read.usb1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x140@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usb1 write to ddr",
> + "MetricName": "imx94_ddr_write.usb1",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x140@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usb2 read from ddr",
> + "MetricName": "imx94_ddr_read.usb2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x150@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of usb2 write to ddr",
> + "MetricName": "imx94_ddr_write.usb2",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x150@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pxp read from ddr",
> + "MetricName": "imx94_ddr_read.pxp",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x2a0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of pxp write to ddr",
> + "MetricName": "imx94_ddr_write.pxp",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x2a0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of dcif read from ddr",
> + "MetricName": "imx94_ddr_read.dcif",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x2b0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + },
> + {
> + "BriefDescription": "bytes of dcif write to ddr",
> + "MetricName": "imx94_ddr_write.dcif",
> + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x2b0@ ) * 32",
> + "ScaleUnit": "9.765625e-4KB",
> + "Unit": "imx9_ddr",
> + "Compat": "imx94"
> + }
> +]
>
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics
2025-11-04 6:33 ` Xu Yang
@ 2025-11-07 1:47 ` Namhyung Kim
2025-11-07 17:54 ` Namhyung Kim
0 siblings, 1 reply; 15+ messages in thread
From: Namhyung Kim @ 2025-11-07 1:47 UTC (permalink / raw)
To: Xu Yang
Cc: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Alexander Shishkin, Jiri Olsa,
Ian Rogers, Adrian Hunter, linux-arm-kernel, linux-perf-users,
devicetree, imx, Peng Fan
Hello,
On Tue, Nov 04, 2025 at 02:33:08PM +0800, Xu Yang wrote:
> Hi Namhyung,
>
> Could you please take this one?
Yep, will add this patch to perf-tools-next soon.
Thanks,
Namhyung
> On Thu, Aug 21, 2025 at 07:01:51PM +0800, Xu Yang wrote:
> > Add JSON metrics for i.MX94 DDR Performance Monitor.
> >
> > Reviewed-by: Peng Fan <peng.fan@nxp.com>
> > Reviewed-by: Frank Li <Frank.Li@nxp.com>
> > Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
> >
> > ---
> > Changes in v2:
> > - add Rb tag
> > ---
> > .../arch/arm64/freescale/imx94/sys/ddrc.json | 9 +
> > .../arch/arm64/freescale/imx94/sys/metrics.json | 450 +++++++++++++++++++++
> > 2 files changed, 459 insertions(+)
> >
> > diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
> > new file mode 100644
> > index 0000000000000000000000000000000000000000..aa7b58721dc7e23dc9d9905a79e0c1778b7bbf11
> > --- /dev/null
> > +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
> > @@ -0,0 +1,9 @@
> > +[
> > + {
> > + "BriefDescription": "ddr cycles event",
> > + "EventCode": "0x00",
> > + "EventName": "imx94_ddr.cycles",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + }
> > +]
> > diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
> > new file mode 100644
> > index 0000000000000000000000000000000000000000..629f1f52761e2210ef43a9cbba175871817e1230
> > --- /dev/null
> > +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
> > @@ -0,0 +1,450 @@
> > +[
> > + {
> > + "BriefDescription": "bandwidth usage for lpddr5 evk board",
> > + "MetricName": "imx94_bandwidth_usage.lpddr5",
> > + "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
> > + "ScaleUnit": "1e2%",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bandwidth usage for lpddr4 evk board",
> > + "MetricName": "imx94_bandwidth_usage.lpddr4",
> > + "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
> > + "ScaleUnit": "1e2%",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of all masters read from ddr",
> > + "MetricName": "imx94_ddr_read.all",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of all masters write to ddr",
> > + "MetricName": "imx94_ddr_write.all",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of all a55 read from ddr",
> > + "MetricName": "imx94_ddr_read.a55_all",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3fc\\,axi_id\\=0x000@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of all a55 write from ddr",
> > + "MetricName": "imx94_ddr_write.a55_all",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3fc\\,axi_id\\=0x000@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of a55 core 0 read from ddr",
> > + "MetricName": "imx94_ddr_read.a55_0",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3ff\\,axi_id\\=0x000@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of a55 core 0 write to ddr",
> > + "MetricName": "imx94_ddr_write.a55_0",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3ff\\,axi_id\\=0x000@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of a55 core 1 read from ddr",
> > + "MetricName": "imx94_ddr_read.a55_1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x001@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of a55 core 1 write to ddr",
> > + "MetricName": "imx94_ddr_write.a55_1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x001@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of a55 core 2 read from ddr",
> > + "MetricName": "imx94_ddr_read.a55_2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x002@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of a55 core 2 write to ddr",
> > + "MetricName": "imx94_ddr_write.a55_2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x002@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of a55 core 3 read from ddr",
> > + "MetricName": "imx94_ddr_read.a55_3",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x003@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of a55 core 3 write to ddr",
> > + "MetricName": "imx94_ddr_write.a55_3",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x003@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of m7 core1 read from ddr",
> > + "MetricName": "imx94_ddr_read.m7_1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x004@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of m7 core1 write to ddr",
> > + "MetricName": "imx94_ddr_write.m7_1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x004@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of m33 core1 (in netc) read from ddr",
> > + "MetricName": "imx94_ddr_read.m33_1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x005@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of m33 core1 (in netc) write to ddr",
> > + "MetricName": "imx94_ddr_write.m33_1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x005@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of pcie2 read from ddr",
> > + "MetricName": "imx94_ddr_read.pcie2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x006@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of pcie2 write to ddr",
> > + "MetricName": "imx94_ddr_write.pcie2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x006@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of Cortex-A DSU L3 evicted/ACP transactions read from ddr",
> > + "MetricName": "imx94_ddr_read.cortex_a_dsu",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x007@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of Cortex-A DSU L3 evicted/ACP transactions write to ddr",
> > + "MetricName": "imx94_ddr_write.cortex_a_dsu",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x007@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of m33 core0 read from ddr",
> > + "MetricName": "imx94_ddr_read.m33_0",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x008@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of m33 core0 write to ddr",
> > + "MetricName": "imx94_ddr_write.m33_0",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x008@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of m7 core0 read from ddr",
> > + "MetricName": "imx94_ddr_read.m7_0",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x009@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of m7 core0 write to ddr",
> > + "MetricName": "imx94_ddr_write.m7_0",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x009@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of sentinel read from ddr",
> > + "MetricName": "imx94_ddr_read.sentinel",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x00a@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of sentinel write to ddr",
> > + "MetricName": "imx94_ddr_write.sentinel",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00a@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of edma1 read from ddr",
> > + "MetricName": "imx94_ddr_read.edma1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x00f\\,axi_id\\=0x00b@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of edma1 write to ddr",
> > + "MetricName": "imx94_ddr_write.edma1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00b@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of edma2 read from ddr",
> > + "MetricName": "imx94_ddr_read.edma2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x00c@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of edma2 write to ddr",
> > + "MetricName": "imx94_ddr_write.edma2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00c@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of netc read from ddr",
> > + "MetricName": "imx94_ddr_read.netc",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x00f\\,axi_id\\=0x00d@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of netc write to ddr",
> > + "MetricName": "imx94_ddr_write.netc",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00d@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of aonmix read from ddr",
> > + "MetricName": "imx94_ddr_read.aonmix",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x00f\\,axi_id\\=0x00f@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of aonmix write to ddr",
> > + "MetricName": "imx94_ddr_write.aonmix",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x00f\\,axi_id\\=0x00f@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of npumix read from ddr",
> > + "MetricName": "imx94_ddr_read.npumix",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x010@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of npumix write to ddr",
> > + "MetricName": "imx94_ddr_write.npumix",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x010@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usdhc1 read from ddr",
> > + "MetricName": "imx94_ddr_read.usdhc1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x0b0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usdhc1 write to ddr",
> > + "MetricName": "imx94_ddr_write.usdhc1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0b0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usdhc2 read from ddr",
> > + "MetricName": "imx94_ddr_read.usdhc2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x0c0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usdhc2 write to ddr",
> > + "MetricName": "imx94_ddr_write.usdhc2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0c0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usdhc3 read from ddr",
> > + "MetricName": "imx94_ddr_read.usdhc3",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x0d0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usdhc3 write to ddr",
> > + "MetricName": "imx94_ddr_write.usdhc3",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0d0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of xspi read from ddr",
> > + "MetricName": "imx94_ddr_read.xspi",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x0f0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of xspi write to ddr",
> > + "MetricName": "imx94_ddr_write.xspi",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x0f0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of pcie1 read from ddr",
> > + "MetricName": "imx94_ddr_read.pcie1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x100@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of pcie1 write to ddr",
> > + "MetricName": "imx94_ddr_write.pcie1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x100@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usb1 read from ddr",
> > + "MetricName": "imx94_ddr_read.usb1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x140@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usb1 write to ddr",
> > + "MetricName": "imx94_ddr_write.usb1",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x140@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usb2 read from ddr",
> > + "MetricName": "imx94_ddr_read.usb2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt2\\,axi_mask\\=0x3f0\\,axi_id\\=0x150@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of usb2 write to ddr",
> > + "MetricName": "imx94_ddr_write.usb2",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x150@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of pxp read from ddr",
> > + "MetricName": "imx94_ddr_read.pxp",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x3f0\\,axi_id\\=0x2a0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of pxp write to ddr",
> > + "MetricName": "imx94_ddr_write.pxp",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x2a0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of dcif read from ddr",
> > + "MetricName": "imx94_ddr_read.dcif",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_rd_beat_filt1\\,axi_mask\\=0x3f0\\,axi_id\\=0x2b0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + },
> > + {
> > + "BriefDescription": "bytes of dcif write to ddr",
> > + "MetricName": "imx94_ddr_write.dcif",
> > + "MetricExpr": "( imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x3f0\\,axi_id\\=0x2b0@ ) * 32",
> > + "ScaleUnit": "9.765625e-4KB",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + }
> > +]
> >
> > --
> > 2.34.1
> >
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics
2025-11-04 17:40 ` Ian Rogers
@ 2025-11-07 2:55 ` Xu Yang
0 siblings, 0 replies; 15+ messages in thread
From: Xu Yang @ 2025-11-07 2:55 UTC (permalink / raw)
To: Ian Rogers
Cc: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Namhyung Kim, Alexander Shishkin,
Jiri Olsa, Adrian Hunter, linux-arm-kernel, linux-perf-users,
devicetree, imx, Peng Fan
On Tue, Nov 04, 2025 at 09:40:15AM -0800, Ian Rogers wrote:
> On Thu, Aug 21, 2025 at 4:02 AM Xu Yang <xu.yang_2@nxp.com> wrote:
> >
> > Add JSON metrics for i.MX94 DDR Performance Monitor.
> >
> > Reviewed-by: Peng Fan <peng.fan@nxp.com>
> > Reviewed-by: Frank Li <Frank.Li@nxp.com>
> > Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
>
> Acked-by: Ian Rogers <irogers@google.com>
>
> > ---
> > Changes in v2:
> > - add Rb tag
> > ---
> > .../arch/arm64/freescale/imx94/sys/ddrc.json | 9 +
> > .../arch/arm64/freescale/imx94/sys/metrics.json | 450 +++++++++++++++++++++
> > 2 files changed, 459 insertions(+)
> >
> > diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
> > new file mode 100644
> > index 0000000000000000000000000000000000000000..aa7b58721dc7e23dc9d9905a79e0c1778b7bbf11
> > --- /dev/null
> > +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/ddrc.json
> > @@ -0,0 +1,9 @@
> > +[
> > + {
> > + "BriefDescription": "ddr cycles event",
> > + "EventCode": "0x00",
> > + "EventName": "imx94_ddr.cycles",
> > + "Unit": "imx9_ddr",
> > + "Compat": "imx94"
> > + }
> > +]
> > diff --git a/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
> > new file mode 100644
> > index 0000000000000000000000000000000000000000..629f1f52761e2210ef43a9cbba175871817e1230
> > --- /dev/null
> > +++ b/tools/perf/pmu-events/arch/arm64/freescale/imx94/sys/metrics.json
> > @@ -0,0 +1,450 @@
> > +[
> > + {
> > + "BriefDescription": "bandwidth usage for lpddr5 evk board",
> > + "MetricName": "imx94_bandwidth_usage.lpddr5",
> > + "MetricExpr": "(( imx9_ddr0@eddrtq_pm_rd_beat_filt0\\,axi_mask\\=0x000\\,axi_id\\=0x000@ + imx9_ddr0@eddrtq_pm_wr_beat_filt\\,axi_mask\\=0x000\\,axi_id\\=0x000@ ) * 32 / duration_time) / (4266 * 1000000 * 4)",
>
> nit: It is possible to have metrics use other metrics, this may read
> better as (although I can't recall if the '.' needs escaping - I'm not
> sure if the 4266 is significant):
>
> ((imx94_ddr_read.all + imx94_ddr_write.all) / duration_time) / 17064e6
>
> > + "ScaleUnit": "1e2%",
>
> nit: I think this would read more easily as "100%"
Thanks for your suggestion, Ian.
I tried, escaping is necessary otherwise perf will report error.
But if I use imx94_ddr_read.all and imx94_ddr_write.all in imx94_bandwidth_usage.lpddr4x,
perf stat won't show correct result on my side.
root@imx95evk:~# ./perf stat -a -M imx95_bandwidth_usage.lpddr4x -I 1000
# time counts unit events
1.001115585 1001234752 ns duration_time
2.002746508 1001632840 ns duration_time
The previous result was:
root@imx95evk:~# perf stat -a -M imx95_bandwidth_usage.lpddr4x -I 1000
# time counts unit events
1.001080251 13966 imx9_ddr0/eddrtq_pm_wr_beat_filt,axi_mask=0x000,axi_id=0x000/ # 0.0 % imx95_bandwidth_usage.lpddr4x
1.001080251 119741 imx9_ddr0/eddrtq_pm_rd_beat_filt0,axi_mask=0x000,axi_id=0x000/
1.001080251 1001275128 ns duration_time
Thanks,
Xu Yang
>
> Thanks,
> Ian
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics
2025-11-07 1:47 ` Namhyung Kim
@ 2025-11-07 17:54 ` Namhyung Kim
0 siblings, 0 replies; 15+ messages in thread
From: Namhyung Kim @ 2025-11-07 17:54 UTC (permalink / raw)
To: Xu Yang
Cc: Frank Li, Will Deacon, Mark Rutland, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, John Garry, James Clark,
Mike Leach, Leo Yan, Peter Zijlstra, Ingo Molnar,
Arnaldo Carvalho de Melo, Alexander Shishkin, Jiri Olsa,
Ian Rogers, Adrian Hunter, linux-arm-kernel, linux-perf-users,
devicetree, imx, Peng Fan
On Thu, Nov 06, 2025 at 05:47:19PM -0800, Namhyung Kim wrote:
> Hello,
>
> On Tue, Nov 04, 2025 at 02:33:08PM +0800, Xu Yang wrote:
> > Hi Namhyung,
> >
> > Could you please take this one?
>
> Yep, will add this patch to perf-tools-next soon.
Applied to perf-tools-next, thanks!
Best regards,
Namhyung
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2025-11-07 17:54 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-08-21 11:01 [PATCH v2 0/5] add imx94 DDR Performance Monitor support Xu Yang
2025-08-21 11:01 ` [PATCH v2 1/5] dt-bindings: perf: fsl-imx-ddr: Add a compatible string fsl,imx94-ddr-pmu for i.MX94 Xu Yang
2025-08-21 11:01 ` [PATCH v2 2/5] perf: imx_perf: add support for i.MX94 platform Xu Yang
2025-08-21 11:01 ` [PATCH v2 3/5] perf vendor events arm64:: Add i.MX94 DDR Performance Monitor metrics Xu Yang
2025-11-04 6:33 ` Xu Yang
2025-11-07 1:47 ` Namhyung Kim
2025-11-07 17:54 ` Namhyung Kim
2025-11-04 17:40 ` Ian Rogers
2025-11-07 2:55 ` Xu Yang
2025-08-21 11:01 ` [PATCH v2 4/5] MAINTAINERS: include fsl_imx9_ddr_perf.c and some perf metric files Xu Yang
2025-08-21 11:01 ` [PATCH v2 5/5] arm64: dts: imx94: add DDR Perf Monitor node Xu Yang
2025-08-21 14:51 ` Frank Li
2025-10-20 10:01 ` Shawn Guo
2025-09-18 16:43 ` [PATCH v2 0/5] add imx94 DDR Performance Monitor support Will Deacon
2025-09-26 2:55 ` Xu Yang
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