[PATCH v11 0/9] Coresight: Add support for TPDM and TPDA

[PATCH v11 0/9] Coresight: Add support for TPDM and TPDA

[Mao Jinlong]

This series adds support for the trace performance monitoring and
diagnostics hardware (TPDM and TPDA). It is composed of two major
elements.
a) Changes for original coresight framework to support for TPDM and TPDA.
b) Add driver code for TPDM and TPDA.

Introduction of changes for original coresight framework
Support TPDM as new coresight source.
Since only STM and ETM are supported as coresight source originally.
TPDM is a newly added coresight source. We need to change
the original way of saving coresight path to support more types source
for coresight driver.
The following patch is to add support more coresight sources.
    coresight: core: Use IDR for non-cpu bound sources' paths.

Introduction of TPDM and TPDA
TPDM - The trace performance monitoring and diagnostics monitor or TPDM in
short serves as data collection component for various dataset types
specified in the QPMDA(Qualcomm performance monitoring and diagnostics
architecture) spec. The primary use case of the TPDM is to collect data
from different data sources and send it to a TPDA for packetization,
timestamping and funneling.
     Coresight: Add coresight TPDM source driver
     dt-bindings: arm: Adds CoreSight TPDM hardware definitions
     coresight-tpdm: Add DSB dataset support
     coresight-tpdm: Add integration test support
     docs: sysfs: coresight: Add sysfs ABI documentation for TPDM

TPDA - The trace performance monitoring and diagnostics aggregator or
TPDA in short serves as an arbitration and packetization engine for the
performance monitoring and diagnostics network as specified in the QPMDA
(Qualcomm performance monitoring and diagnostics architecture)
specification. The primary use case of the TPDA is to provide
packetization, funneling and timestamping of Monitor data as specified
in the QPMDA specification.
The following patch is to add driver for TPDA.
     Coresight: Add TPDA link driver
     dt-bindings: arm: Adds CoreSight TPDA hardware definitions

The last patch of this series is a device tree modification, which add
the TPDM and TPDA configuration to device tree for validating.
    ARM: dts: msm: Add coresight components for SM8250
    ARM: dts: msm: Add tpdm mm/prng for sm8250

Once this series patches are applied properly, the tpdm and tpda nodes
should be observed at the coresight path /sys/bus/coresight/devices
e.g.
/sys/bus/coresight/devices # ls -l | grep tpd
tpda0 -> ../../../devices/platform/soc@0/6004000.tpda/tpda0
tpdm0 -> ../../../devices/platform/soc@0/6c08000.mm.tpdm/tpdm0

We can use the commands are similar to the below to validate TPDMs.
Enable coresight sink first.

echo 1 > /sys/bus/coresight/devices/tmc_etf0/enable_sink
echo 1 > /sys/bus/coresight/devices/tpdm0/enable_source
echo 1 > /sys/bus/coresight/devices/tpdm0/integration_test
echo 2 > /sys/bus/coresight/devices/tpdm0/integration_test
The test data will be collected in the coresight sink which is enabled.
If rwp register of the sink is keeping updating when do
integration_test (by cat tmc_etf0/mgmt/rwp), it means there is data
generated from TPDM to sink.

There must be a tpda between tpdm and the sink. When there are some
other trace event hw components in the same HW block with tpdm, tpdm
and these hw components will connect to the coresight funnel. When
there is only tpdm trace hw in the HW block, tpdm will connect to
tpda directly.
  
    +---------------+                +-------------+
    |  tpdm@6c08000 |                |tpdm@684C000 |
    +-------|-------+                +------|------+
            |                               |
    +-------|-------+                       |
    | funnel@6c0b000|                       |
    +-------|-------+                       |
            |                               |
    +-------|-------+                       |
    |funnel@6c2d000 |                       |
    +-------|-------+                       |
            |                               |
            |    +---------------+          |
            +----- tpda@6004000  -----------+
                 +-------|-------+
                         |
                 +-------|-------+
                 |funnel@6005000 |
                 +---------------+

This patch series depends on patch series
"coresight: Add new API to allocate trace source ID values".
https://patchwork.kernel.org/project/linux-arm-kernel/cover/20220308205000.27646-1-mike.leach@linaro.org/ 

Changes from V10:
1. Change dev_info to dev_dbg in TPDM/TPDA drivers. -- Suzuki K Poulose <suzuki.poulose@arm.com>
2. Merge sysfs API change of integration_test to integration_test driver
change. -- -- Suzuki K Poulose <suzuki.poulose@arm.com>

Mao Jinlong (9):
  coresight: core: Use IDR for non-cpu bound sources' paths.
  Coresight: Add coresight TPDM source driver
  dt-bindings: arm: Adds CoreSight TPDM hardware definitions
  coresight-tpdm: Add DSB dataset support
  coresight-tpdm: Add integration test support
  Coresight: Add TPDA link driver
  dt-bindings: arm: Adds CoreSight TPDA hardware definitions
  arm64: dts: qcom: sm8250: Add coresight components
  arm64: dts: qcom: sm8250: Add tpdm mm/prng

 .../testing/sysfs-bus-coresight-devices-tpdm  |  13 +
 .../bindings/arm/qcom,coresight-tpda.yaml     | 111 +++
 .../bindings/arm/qcom,coresight-tpdm.yaml     |  93 +++
 MAINTAINERS                                   |   2 +
 arch/arm64/boot/dts/qcom/sm8250.dtsi          | 671 ++++++++++++++++++
 drivers/hwtracing/coresight/Kconfig           |  23 +
 drivers/hwtracing/coresight/Makefile          |   2 +
 drivers/hwtracing/coresight/coresight-core.c  |  42 +-
 drivers/hwtracing/coresight/coresight-tpda.c  | 206 ++++++
 drivers/hwtracing/coresight/coresight-tpda.h  |  35 +
 drivers/hwtracing/coresight/coresight-tpdm.c  | 259 +++++++
 drivers/hwtracing/coresight/coresight-tpdm.h  |  62 ++
 include/linux/coresight.h                     |   1 +
 13 files changed, 1508 insertions(+), 12 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
 create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
 create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
 create mode 100644 drivers/hwtracing/coresight/coresight-tpda.c
 create mode 100644 drivers/hwtracing/coresight/coresight-tpda.h
 create mode 100644 drivers/hwtracing/coresight/coresight-tpdm.c
 create mode 100644 drivers/hwtracing/coresight/coresight-tpdm.h

-- 
2.17.1

[PATCH v11 3/9] dt-bindings: arm: Adds CoreSight TPDM hardware definitions

[Mao Jinlong]

Adds new coresight-tpdm.yaml file describing the bindings required
to define tpdm in the device trees.

Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
---
 .../bindings/arm/qcom,coresight-tpdm.yaml     | 93 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 94 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml

diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
new file mode 100644
index 000000000000..5881cb41da70
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/qcom,coresight-tpdm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Trace, Profiling and Diagnostics Monitor - TPDM
+
+description: |
+  The TPDM or Monitor serves as data collection component for various dataset
+  types specified in the QPMDA spec. It covers Implementation defined ((ImplDef),
+  Basic Counts (BC), Tenure Counts (TC), Continuous Multi-Bit (CMB), and Discrete
+  Single Bit (DSB). It performs data collection in the data producing clock
+  domain and transfers it to the data collection time domain, generally ATB
+  clock domain.
+
+  The primary use case of the TPDM is to collect data from different data
+  sources and send it to a TPDA for packetization, timestamping, and funneling.
+
+maintainers:
+  - Mao Jinlong <quic_jinlmao@quicinc.com>
+  - Tao Zhang <quic_taozha@quicinc.com>
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - qcom,coresight-tpdm
+  required:
+    - compatible
+
+properties:
+  $nodename:
+    pattern: "^tpdm(@[0-9a-f]+)$"
+  compatible:
+    items:
+      - const: qcom,coresight-tpdm
+      - const: arm,primecell
+
+  reg:
+    minItems: 1
+    maxItems: 2
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: apb_pclk
+
+  out-ports:
+    description: |
+      Output connections from the TPDM to coresight funnel/TPDA.
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port:
+        description: Output connection from the TPDM to coresight
+            funnel/TPDA.
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  # minimum TPDM definition. TPDM connect to coresight TPDA.
+  - |
+    tpdm@684c000 {
+      compatible = "qcom,coresight-tpdm", "arm,primecell";
+      reg = <0x0684c000 0x1000>;
+
+      clocks = <&aoss_qmp>;
+      clock-names = "apb_pclk";
+
+      out-ports {
+        port {
+          tpdm_prng_out_tpda_qdss: endpoint {
+            remote-endpoint =
+              <&tpda_qdss_in_tpdm_prng>;
+          };
+        };
+      };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 3cf9842d9233..5666b4ef26a1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1983,6 +1983,7 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git
 F:	Documentation/ABI/testing/sysfs-bus-coresight-devices-*
 F:	Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
 F:	Documentation/devicetree/bindings/arm/coresight-cti.yaml
+F:	Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
 F:	Documentation/devicetree/bindings/arm/coresight.txt
 F:	Documentation/devicetree/bindings/arm/ete.yaml
 F:	Documentation/devicetree/bindings/arm/trbe.yaml
-- 
2.17.1

[PATCH v11 7/9] dt-bindings: arm: Adds CoreSight TPDA hardware definitions

[Mao Jinlong]

Adds new coresight-tpda.yaml file describing the bindings required
to define tpda in the device trees.

Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
---
 .../bindings/arm/qcom,coresight-tpda.yaml     | 111 ++++++++++++++++++
 MAINTAINERS                                   |   1 +
 2 files changed, 112 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml

diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
new file mode 100644
index 000000000000..eb9bfc5f93a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/qcom,coresight-tpda.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Trace, Profiling and Diagnostics Aggregator - TPDA
+
+description: |
+  TPDAs are responsible for packetization and timestamping of data sets
+  utilizing the MIPI STPv2 packet protocol. Pulling data sets from one or
+  more attached TPDM and pushing the resultant (packetized) data out a
+  master ATB interface. Performing an arbitrated ATB interleaving (funneling)
+  task for free-flowing data from TPDM (i.e. CMB and DSB data set flows).
+
+maintainers:
+  - Mao Jinlong <quic_jinlmao@quicinc.com>
+  - Tao Zhang <quic_taozha@quicinc.com>
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - qcom,coresight-tpda
+  required:
+    - compatible
+
+properties:
+  $nodename:
+    pattern: "^tpda(@[0-9a-f]+)$"
+  compatible:
+    items:
+      - const: qcom,coresight-tpda
+      - const: arm,primecell
+
+  reg:
+    minItems: 1
+    maxItems: 2
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: apb_pclk
+
+  in-ports:
+    type: object
+    description: |
+      Input connections from TPDM to TPDA
+    $ref: /schemas/graph.yaml#/properties/ports
+
+  out-ports:
+    type: object
+    description: |
+      Output connections from the TPDA to legacy CoreSight trace bus.
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port:
+        description:
+          Output connection from the TPDA to legacy CoreSight Trace bus.
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - in-ports
+  - out-ports
+
+additionalProperties: false
+
+examples:
+  # minimum tpda definition.
+  - |
+    tpda@6004000 {
+       compatible = "qcom,coresight-tpda", "arm,primecell";
+       reg = <0x6004000 0x1000>;
+
+       clocks = <&aoss_qmp>;
+       clock-names = "apb_pclk";
+
+       in-ports {
+         #address-cells = <1>;
+         #size-cells = <0>;
+
+        port@0 {
+          reg = <0>;
+          tpda_qdss_0_in_tpdm_dcc: endpoint {
+            remote-endpoint =
+              <&tpdm_dcc_out_tpda_qdss_0>;
+            };
+        };
+      };
+
+       out-ports {
+         port {
+                 tpda_qdss_out_funnel_in0: endpoint {
+                    remote-endpoint =
+                    <&funnel_in0_in_tpda_qdss>;
+                  };
+          };
+       };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 5666b4ef26a1..07bf601df92b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1983,6 +1983,7 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git
 F:	Documentation/ABI/testing/sysfs-bus-coresight-devices-*
 F:	Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
 F:	Documentation/devicetree/bindings/arm/coresight-cti.yaml
+F:	Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
 F:	Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
 F:	Documentation/devicetree/bindings/arm/coresight.txt
 F:	Documentation/devicetree/bindings/arm/ete.yaml
-- 
2.17.1

[PATCH v11 8/9] arm64: dts: qcom: sm8250: Add coresight components

[Mao Jinlong]

Add coresight components for sm8250. STM/ETM are added.

Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 498 +++++++++++++++++++++++++++
 1 file changed, 498 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index cf0c97bd5ad3..d6bcbf7667b6 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -2713,6 +2713,504 @@
 			};
 		};
 
+		stm@6002000 {
+			compatible = "arm,coresight-stm", "arm,primecell";
+			reg = <0 0x06002000 0 0x1000>, <0 0x16280000 0 0x180000>;
+			reg-names = "stm-base", "stm-stimulus-base";
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					stm_out: endpoint {
+						remote-endpoint = <&funnel0_in7>;
+					};
+				};
+			};
+		};
+
+		funnel@6041000 {
+			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+			reg = <0 0x06041000 0 0x1000>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					funnel_in0_out_funnel_merg: endpoint {
+						remote-endpoint = <&funnel_merg_in_funnel_in0>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@7 {
+					reg = <7>;
+					funnel0_in7: endpoint {
+						remote-endpoint = <&stm_out>;
+					};
+				};
+			};
+		};
+
+		funnel@6042000 {
+			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+			reg = <0 0x06042000 0 0x1000>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					funnel_in1_out_funnel_merg: endpoint {
+						remote-endpoint = <&funnel_merg_in_funnel_in1>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@4 {
+					reg = <4>;
+					funnel_in1_in_funnel_apss_merg: endpoint {
+					remote-endpoint = <&funnel_apss_merg_out_funnel_in1>;
+					};
+				};
+			};
+		};
+
+		funnel@6045000 {
+			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+			reg = <0 0x06045000 0 0x1000>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					funnel_merg_out_funnel_swao: endpoint {
+					remote-endpoint = <&funnel_swao_in_funnel_merg>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					funnel_merg_in_funnel_in0: endpoint {
+					remote-endpoint = <&funnel_in0_out_funnel_merg>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+					funnel_merg_in_funnel_in1: endpoint {
+					remote-endpoint = <&funnel_in1_out_funnel_merg>;
+					};
+				};
+			};
+		};
+
+		replicator@6046000 {
+			compatible = "arm,coresight-dynamic-replicator", "arm,primecell";
+			reg = <0 0x06046000 0 0x1000>;
+
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					replicator_out: endpoint {
+						remote-endpoint = <&etr_in>;
+					};
+				};
+			};
+
+			in-ports {
+				port {
+					replicator_cx_in_swao_out: endpoint {
+						remote-endpoint = <&replicator_swao_out_cx_in>;
+					};
+				};
+			};
+		};
+
+		etr@6048000 {
+			compatible = "arm,coresight-tmc", "arm,primecell";
+			reg = <0 0x06048000 0 0x1000>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,scatter-gather;
+
+			in-ports {
+				port {
+					etr_in: endpoint {
+						remote-endpoint = <&replicator_out>;
+					};
+				};
+			};
+		};
+
+		funnel@6b04000 {
+			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+			arm,primecell-periphid = <0x000bb908>;
+
+			reg = <0 0x06b04000 0 0x1000>;
+			reg-names = "funnel-base";
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					funnel_swao_out_etf: endpoint {
+						remote-endpoint = <&etf_in_funnel_swao_out>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@7 {
+					reg = <7>;
+					funnel_swao_in_funnel_merg: endpoint {
+						remote-endpoint= <&funnel_merg_out_funnel_swao>;
+					};
+				};
+			};
+
+		};
+
+		etf@6b05000 {
+			compatible = "arm,coresight-tmc", "arm,primecell";
+			reg = <0 0x06b05000 0 0x1000>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					etf_out: endpoint {
+						remote-endpoint = <&replicator_in>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					etf_in_funnel_swao_out: endpoint {
+						remote-endpoint = <&funnel_swao_out_etf>;
+					};
+				};
+			};
+		};
+
+		replicator@6b06000 {
+			compatible = "arm,coresight-dynamic-replicator", "arm,primecell";
+			reg = <0 0x06b06000 0 0x1000>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					replicator_swao_out_cx_in: endpoint {
+						remote-endpoint = <&replicator_cx_in_swao_out>;
+					};
+				};
+			};
+
+			in-ports {
+				port {
+					replicator_in: endpoint {
+						remote-endpoint = <&etf_out>;
+					};
+				};
+			};
+		};
+
+		etm@7040000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0 0x07040000 0 0x1000>;
+
+			cpu = <&CPU0>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
+
+			out-ports {
+				port {
+					etm0_out: endpoint {
+						remote-endpoint = <&apss_funnel_in0>;
+					};
+				};
+			};
+		};
+
+		etm@7140000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0 0x07140000 0 0x1000>;
+
+			cpu = <&CPU1>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
+
+			out-ports {
+				port {
+					etm1_out: endpoint {
+						remote-endpoint = <&apss_funnel_in1>;
+					};
+				};
+			};
+		};
+
+		etm@7240000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0 0x07240000 0 0x1000>;
+
+			cpu = <&CPU2>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
+
+			out-ports {
+				port {
+					etm2_out: endpoint {
+						remote-endpoint = <&apss_funnel_in2>;
+					};
+				};
+			};
+		};
+
+		etm@7340000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0 0x07340000 0 0x1000>;
+
+			cpu = <&CPU3>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
+
+			out-ports {
+				port {
+					etm3_out: endpoint {
+						remote-endpoint = <&apss_funnel_in3>;
+					};
+				};
+			};
+		};
+
+		etm@7440000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0 0x07440000 0 0x1000>;
+
+			cpu = <&CPU4>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
+
+			out-ports {
+				port {
+					etm4_out: endpoint {
+						remote-endpoint = <&apss_funnel_in4>;
+					};
+				};
+			};
+		};
+
+		etm@7540000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0 0x07540000 0 0x1000>;
+
+			cpu = <&CPU5>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
+
+			out-ports {
+				port {
+					etm5_out: endpoint {
+						remote-endpoint = <&apss_funnel_in5>;
+					};
+				};
+			};
+		};
+
+		etm@7640000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0 0x07640000 0 0x1000>;
+
+			cpu = <&CPU6>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
+
+			out-ports {
+				port {
+					etm6_out: endpoint {
+						remote-endpoint = <&apss_funnel_in6>;
+					};
+				};
+			};
+		};
+
+		etm@7740000 {
+			compatible = "arm,coresight-etm4x", "arm,primecell";
+			reg = <0 0x07740000 0 0x1000>;
+
+			cpu = <&CPU7>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+			arm,coresight-loses-context-with-cpu;
+
+			out-ports {
+				port {
+					etm7_out: endpoint {
+						remote-endpoint = <&apss_funnel_in7>;
+					};
+				};
+			};
+		};
+
+		funnel@7800000 {
+			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+			reg = <0 0x07800000 0 0x1000>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					funnel_apss_out_funnel_apss_merg: endpoint {
+					remote-endpoint = <&funnel_apss_merg_in_funnel_apss>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					apss_funnel_in0: endpoint {
+						remote-endpoint = <&etm0_out>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+					apss_funnel_in1: endpoint {
+						remote-endpoint = <&etm1_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+					apss_funnel_in2: endpoint {
+						remote-endpoint = <&etm2_out>;
+					};
+				};
+
+				port@3 {
+					reg = <3>;
+					apss_funnel_in3: endpoint {
+						remote-endpoint = <&etm3_out>;
+					};
+				};
+
+				port@4 {
+					reg = <4>;
+					apss_funnel_in4: endpoint {
+						remote-endpoint = <&etm4_out>;
+					};
+				};
+
+				port@5 {
+					reg = <5>;
+					apss_funnel_in5: endpoint {
+						remote-endpoint = <&etm5_out>;
+					};
+				};
+
+				port@6 {
+					reg = <6>;
+					apss_funnel_in6: endpoint {
+						remote-endpoint = <&etm6_out>;
+					};
+				};
+
+				port@7 {
+					reg = <7>;
+					apss_funnel_in7: endpoint {
+						remote-endpoint = <&etm7_out>;
+					};
+				};
+			};
+		};
+
+		funnel@7810000 {
+			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+			reg = <0 0x07810000 0 0x1000>;
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port {
+					funnel_apss_merg_out_funnel_in1: endpoint {
+					remote-endpoint = <&funnel_in1_in_funnel_apss_merg>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					funnel_apss_merg_in_funnel_apss: endpoint {
+					remote-endpoint = <&funnel_apss_out_funnel_apss_merg>;
+					};
+				};
+			};
+		};
+
 		cdsp: remoteproc@8300000 {
 			compatible = "qcom,sm8250-cdsp-pas";
 			reg = <0 0x08300000 0 0x10000>;
-- 
2.17.1

[PATCH v11 9/9] arm64: dts: qcom: sm8250: Add tpdm mm/prng

[Mao Jinlong]

Add tpdm mm and tpdm prng for sm8250.

+---------------+                +-------------+
|  tpdm@6c08000 |                |tpdm@684C000 |
+-------|-------+                +------|------+
        |                               |
+-------|-------+                       |
| funnel@6c0b000|                       |
+-------|-------+                       |
        |                               |
+-------|-------+                       |
|funnel@6c2d000 |                       |
+-------|-------+                       |
        |                               |
        |    +---------------+          |
        +----- tpda@6004000  -----------+
             +-------|-------+
                     |
             +-------|-------+
             |funnel@6005000 |
             +---------------+

Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 173 +++++++++++++++++++++++++++
 1 file changed, 173 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index d6bcbf7667b6..9c1aed51ce81 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -2730,6 +2730,76 @@
 			};
 		};
 
+		tpda@6004000 {
+			compatible = "arm,primecell";
+			reg = <0 0x06004000 0 0x1000>;
+			reg-names = "tpda-base";
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					tpda_out_funnel_qatb: endpoint {
+						remote-endpoint = <&funnel_qatb_in_tpda>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@9 {
+					reg = <9>;
+					tpda_9_in_tpdm_mm: endpoint {
+						remote-endpoint = <&tpdm_mm_out_tpda9>;
+					};
+				};
+
+				port@17 {
+					reg = <23>;
+					tpda_23_in_tpdm_prng: endpoint {
+						remote-endpoint = <&tpdm_prng_out_tpda_23>;
+					};
+				};
+			};
+		};
+
+		funnel@6005000 {
+			compatible = "arm,primecell";
+
+			reg = <0 0x06005000 0 0x1000>;
+			reg-names = "funnel-base";
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					funnel_qatb_out_funnel_in0: endpoint {
+						remote-endpoint = <&funnel_in0_in_funnel_qatb>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					funnel_qatb_in_tpda: endpoint {
+						remote-endpoint = <&tpda_out_funnel_qatb>;
+					};
+				};
+			};
+		};
+
 		funnel@6041000 {
 			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
 			reg = <0 0x06041000 0 0x1000>;
@@ -2749,6 +2819,13 @@
 				#address-cells = <1>;
 				#size-cells = <0>;
 
+				port@6 {
+					reg = <6>;
+					funnel_in0_in_funnel_qatb: endpoint {
+						remote-endpoint = <&funnel_qatb_out_funnel_in0>;
+					};
+				};
+
 				port@7 {
 					reg = <7>;
 					funnel0_in7: endpoint {
@@ -2867,6 +2944,23 @@
 			};
 		};
 
+		tpdm@684c000 {
+			compatible = "arm,primecell";
+			reg = <0 0x0684c000 0 0x1000>;
+			reg-names = "tpdm-base";
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					tpdm_prng_out_tpda_23: endpoint {
+						remote-endpoint = <&tpda_23_in_tpdm_prng>;
+					};
+				};
+			};
+		};
+
 		funnel@6b04000 {
 			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
 			arm,primecell-periphid = <0x000bb908>;
@@ -2951,6 +3045,85 @@
 			};
 		};
 
+		tpdm@6c08000 {
+			compatible = "arm,primecell";
+			reg = <0 0x06c08000 0 0x1000>;
+			reg-names = "tpdm-base";
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					tpdm_mm_out_funnel_dl_mm: endpoint {
+						remote-endpoint = <&funnel_dl_mm_in_tpdm_mm>;
+					};
+				};
+			};
+		};
+
+		funnel@6c0b000 {
+			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+
+			reg = <0 0x06c0b000 0 0x1000>;
+			reg-names = "funnel-base";
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				port {
+					funnel_dl_mm_out_funnel_dl_center: endpoint {
+					remote-endpoint = <&funnel_dl_center_in_funnel_dl_mm>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@3 {
+					reg = <3>;
+					funnel_dl_mm_in_tpdm_mm: endpoint {
+						remote-endpoint = <&tpdm_mm_out_funnel_dl_mm>;
+					};
+				};
+			};
+		};
+
+		funnel@6c2d000 {
+			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+
+			reg = <0 0x06c2d000 0 0x1000>;
+			reg-names = "funnel-base";
+
+			clocks = <&aoss_qmp>;
+			clock-names = "apb_pclk";
+
+			out-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port {
+					tpdm_mm_out_tpda9: endpoint {
+						remote-endpoint = <&tpda_9_in_tpdm_mm>;
+					};
+				};
+			};
+
+			in-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@2 {
+					reg = <2>;
+					funnel_dl_center_in_funnel_dl_mm: endpoint {
+					remote-endpoint = <&funnel_dl_mm_out_funnel_dl_center>;
+					};
+				};
+			};
+		};
+
 		etm@7040000 {
 			compatible = "arm,coresight-etm4x", "arm,primecell";
 			reg = <0 0x07040000 0 0x1000>;
-- 
2.17.1

Re: [PATCH v11 0/9] Coresight: Add support for TPDM and TPDA

[Jinlong Mao]

Hi Reviewers,

Please help to review V11 patches.

Thanks
Jinlong Mao
On 6/20/2022 8:00 PM, Mao Jinlong wrote:
> This series adds support for the trace performance monitoring and
> diagnostics hardware (TPDM and TPDA). It is composed of two major
> elements.
> a) Changes for original coresight framework to support for TPDM and TPDA.
> b) Add driver code for TPDM and TPDA.
>
> Introduction of changes for original coresight framework
> Support TPDM as new coresight source.
> Since only STM and ETM are supported as coresight source originally.
> TPDM is a newly added coresight source. We need to change
> the original way of saving coresight path to support more types source
> for coresight driver.
> The following patch is to add support more coresight sources.
>      coresight: core: Use IDR for non-cpu bound sources' paths.
>
> Introduction of TPDM and TPDA
> TPDM - The trace performance monitoring and diagnostics monitor or TPDM in
> short serves as data collection component for various dataset types
> specified in the QPMDA(Qualcomm performance monitoring and diagnostics
> architecture) spec. The primary use case of the TPDM is to collect data
> from different data sources and send it to a TPDA for packetization,
> timestamping and funneling.
>       Coresight: Add coresight TPDM source driver
>       dt-bindings: arm: Adds CoreSight TPDM hardware definitions
>       coresight-tpdm: Add DSB dataset support
>       coresight-tpdm: Add integration test support
>       docs: sysfs: coresight: Add sysfs ABI documentation for TPDM
>
> TPDA - The trace performance monitoring and diagnostics aggregator or
> TPDA in short serves as an arbitration and packetization engine for the
> performance monitoring and diagnostics network as specified in the QPMDA
> (Qualcomm performance monitoring and diagnostics architecture)
> specification. The primary use case of the TPDA is to provide
> packetization, funneling and timestamping of Monitor data as specified
> in the QPMDA specification.
> The following patch is to add driver for TPDA.
>       Coresight: Add TPDA link driver
>       dt-bindings: arm: Adds CoreSight TPDA hardware definitions
>
> The last patch of this series is a device tree modification, which add
> the TPDM and TPDA configuration to device tree for validating.
>      ARM: dts: msm: Add coresight components for SM8250
>      ARM: dts: msm: Add tpdm mm/prng for sm8250
>
> Once this series patches are applied properly, the tpdm and tpda nodes
> should be observed at the coresight path /sys/bus/coresight/devices
> e.g.
> /sys/bus/coresight/devices # ls -l | grep tpd
> tpda0 -> ../../../devices/platform/soc@0/6004000.tpda/tpda0
> tpdm0 -> ../../../devices/platform/soc@0/6c08000.mm.tpdm/tpdm0
>
> We can use the commands are similar to the below to validate TPDMs.
> Enable coresight sink first.
>
> echo 1 > /sys/bus/coresight/devices/tmc_etf0/enable_sink
> echo 1 > /sys/bus/coresight/devices/tpdm0/enable_source
> echo 1 > /sys/bus/coresight/devices/tpdm0/integration_test
> echo 2 > /sys/bus/coresight/devices/tpdm0/integration_test
> The test data will be collected in the coresight sink which is enabled.
> If rwp register of the sink is keeping updating when do
> integration_test (by cat tmc_etf0/mgmt/rwp), it means there is data
> generated from TPDM to sink.
>
> There must be a tpda between tpdm and the sink. When there are some
> other trace event hw components in the same HW block with tpdm, tpdm
> and these hw components will connect to the coresight funnel. When
> there is only tpdm trace hw in the HW block, tpdm will connect to
> tpda directly.
>    
>      +---------------+                +-------------+
>      |  tpdm@6c08000 |                |tpdm@684C000 |
>      +-------|-------+                +------|------+
>              |                               |
>      +-------|-------+                       |
>      | funnel@6c0b000|                       |
>      +-------|-------+                       |
>              |                               |
>      +-------|-------+                       |
>      |funnel@6c2d000 |                       |
>      +-------|-------+                       |
>              |                               |
>              |    +---------------+          |
>              +----- tpda@6004000  -----------+
>                   +-------|-------+
>                           |
>                   +-------|-------+
>                   |funnel@6005000 |
>                   +---------------+
>
> This patch series depends on patch series
> "coresight: Add new API to allocate trace source ID values".
> https://patchwork.kernel.org/project/linux-arm-kernel/cover/20220308205000.27646-1-mike.leach@linaro.org/
>
> Changes from V10:
> 1. Change dev_info to dev_dbg in TPDM/TPDA drivers. -- Suzuki K Poulose <suzuki.poulose@arm.com>
> 2. Merge sysfs API change of integration_test to integration_test driver
> change. -- -- Suzuki K Poulose <suzuki.poulose@arm.com>
>
> Mao Jinlong (9):
>    coresight: core: Use IDR for non-cpu bound sources' paths.
>    Coresight: Add coresight TPDM source driver
>    dt-bindings: arm: Adds CoreSight TPDM hardware definitions
>    coresight-tpdm: Add DSB dataset support
>    coresight-tpdm: Add integration test support
>    Coresight: Add TPDA link driver
>    dt-bindings: arm: Adds CoreSight TPDA hardware definitions
>    arm64: dts: qcom: sm8250: Add coresight components
>    arm64: dts: qcom: sm8250: Add tpdm mm/prng
>
>   .../testing/sysfs-bus-coresight-devices-tpdm  |  13 +
>   .../bindings/arm/qcom,coresight-tpda.yaml     | 111 +++
>   .../bindings/arm/qcom,coresight-tpdm.yaml     |  93 +++
>   MAINTAINERS                                   |   2 +
>   arch/arm64/boot/dts/qcom/sm8250.dtsi          | 671 ++++++++++++++++++
>   drivers/hwtracing/coresight/Kconfig           |  23 +
>   drivers/hwtracing/coresight/Makefile          |   2 +
>   drivers/hwtracing/coresight/coresight-core.c  |  42 +-
>   drivers/hwtracing/coresight/coresight-tpda.c  | 206 ++++++
>   drivers/hwtracing/coresight/coresight-tpda.h  |  35 +
>   drivers/hwtracing/coresight/coresight-tpdm.c  | 259 +++++++
>   drivers/hwtracing/coresight/coresight-tpdm.h  |  62 ++
>   include/linux/coresight.h                     |   1 +
>   13 files changed, 1508 insertions(+), 12 deletions(-)
>   create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
>   create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
>   create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
>   create mode 100644 drivers/hwtracing/coresight/coresight-tpda.c
>   create mode 100644 drivers/hwtracing/coresight/coresight-tpda.h
>   create mode 100644 drivers/hwtracing/coresight/coresight-tpdm.c
>   create mode 100644 drivers/hwtracing/coresight/coresight-tpdm.h
>

Re: [PATCH v11 7/9] dt-bindings: arm: Adds CoreSight TPDA hardware definitions

[Suzuki K Poulose]

On 20/06/2022 13:00, Mao Jinlong wrote:
> Adds new coresight-tpda.yaml file describing the bindings required
> to define tpda in the device trees.
> 
> Reviewed-by: Rob Herring <robh@kernel.org>
> Reviewed-by: Mike Leach <mike.leach@linaro.org>
> Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
> Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>

Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>