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/[email protected]/
Changes from V10:
1. Change dev_info to dev_dbg in TPDM/TPDA drivers. -- Suzuki K Poulose <[email protected]>
2. Merge sysfs API change of integration_test to integration_test driver
change. -- -- Suzuki K Poulose <[email protected]>
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
Integration test for tpdm can help to generate the data for
verification of the topology during TPDM software bring up.
Sample:
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
cat /dev/tmc_etf0 > /data/etf-tpdm0.bin
Signed-off-by: Tao Zhang <[email protected]>
Signed-off-by: Mao Jinlong <[email protected]>
---
.../testing/sysfs-bus-coresight-devices-tpdm | 13 +++++
drivers/hwtracing/coresight/coresight-tpdm.c | 54 +++++++++++++++++++
drivers/hwtracing/coresight/coresight-tpdm.h | 14 +++++
3 files changed, 81 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
new file mode 100644
index 000000000000..e1c2b5a59cb4
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
@@ -0,0 +1,13 @@
+What: /sys/bus/coresight/devices/<tpdm-name>/integration_test
+Date: June 2022
+KernelVersion 5.20
+Contact: Jinlong Mao (QUIC) <[email protected]>, Tao Zhang (QUIC) <[email protected]>
+Description:
+ (Write) Run integration test for tpdm. Integration test
+ will generate test data for tpdm. It can help to make
+ sure that the trace path is enabled and the link configurations
+ are fine.
+
+ Accepts only one of the 2 values - 1 or 2.
+ 1 : Generate 64 bits data
+ 2 : Generate 32 bits data
diff --git a/drivers/hwtracing/coresight/coresight-tpdm.c b/drivers/hwtracing/coresight/coresight-tpdm.c
index f6d653a45c99..88df3e687ce2 100644
--- a/drivers/hwtracing/coresight/coresight-tpdm.c
+++ b/drivers/hwtracing/coresight/coresight-tpdm.c
@@ -121,6 +121,59 @@ static void tpdm_init_default_data(struct tpdm_drvdata *drvdata)
CS_LOCK(drvdata->base);
}
+/*
+ * value 1: 64 bits test data
+ * value 2: 32 bits test data
+ */
+static ssize_t integration_test_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t size)
+{
+ int i, ret = 0;
+ unsigned long val;
+ struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ if (val != 1 && val != 2)
+ return -EINVAL;
+
+ if (!drvdata->enable)
+ return -EINVAL;
+
+ if (val == 1)
+ val = ATBCNTRL_VAL_64;
+ else
+ val = ATBCNTRL_VAL_32;
+ CS_UNLOCK(drvdata->base);
+ writel_relaxed(0x1, drvdata->base + TPDM_ITCNTRL);
+
+ for (i = 0; i < INTEGRATION_TEST_CYCLE; i++)
+ writel_relaxed(val, drvdata->base + TPDM_ITATBCNTRL);
+
+ writel_relaxed(0, drvdata->base + TPDM_ITCNTRL);
+ CS_LOCK(drvdata->base);
+ return size;
+}
+static DEVICE_ATTR_WO(integration_test);
+
+static struct attribute *tpdm_attrs[] = {
+ &dev_attr_integration_test.attr,
+ NULL,
+};
+
+static struct attribute_group tpdm_attr_grp = {
+ .attrs = tpdm_attrs,
+};
+
+static const struct attribute_group *tpdm_attr_grps[] = {
+ &tpdm_attr_grp,
+ NULL,
+};
+
static int tpdm_probe(struct amba_device *adev, const struct amba_id *id)
{
void __iomem *base;
@@ -157,6 +210,7 @@ static int tpdm_probe(struct amba_device *adev, const struct amba_id *id)
desc.pdata = adev->dev.platform_data;
desc.dev = &adev->dev;
desc.access = CSDEV_ACCESS_IOMEM(base);
+ desc.groups = tpdm_attr_grps;
drvdata->csdev = coresight_register(&desc);
if (IS_ERR(drvdata->csdev))
return PTR_ERR(drvdata->csdev);
diff --git a/drivers/hwtracing/coresight/coresight-tpdm.h b/drivers/hwtracing/coresight/coresight-tpdm.h
index c8a101cbb4c7..d808fa1e8d4a 100644
--- a/drivers/hwtracing/coresight/coresight-tpdm.h
+++ b/drivers/hwtracing/coresight/coresight-tpdm.h
@@ -14,6 +14,20 @@
/* Enable bit for DSB subunit */
#define TPDM_DSB_CR_ENA BIT(0)
+/* TPDM integration test registers */
+#define TPDM_ITATBCNTRL (0xEF0)
+#define TPDM_ITCNTRL (0xF00)
+
+/* Register value for integration test */
+#define ATBCNTRL_VAL_32 0xC00F1409
+#define ATBCNTRL_VAL_64 0xC01F1409
+
+/*
+ * Number of cycles to write value when
+ * integration test.
+ */
+#define INTEGRATION_TEST_CYCLE 10
+
/**
* The bits of PERIPHIDR0 register.
* The fields [6:0] of PERIPHIDR0 are used to determine what
--
2.17.1
Add coresight components for sm8250. STM/ETM are added.
Signed-off-by: Tao Zhang <[email protected]>
Signed-off-by: Mao Jinlong <[email protected]>
---
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
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/[email protected]/
>
> Changes from V10:
> 1. Change dev_info to dev_dbg in TPDM/TPDA drivers. -- Suzuki K Poulose <[email protected]>
> 2. Merge sysfs API change of integration_test to integration_test driver
> change. -- -- Suzuki K Poulose <[email protected]>
>
> 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
>
On 20/06/2022 13:00, Mao Jinlong wrote:
> Integration test for tpdm can help to generate the data for
> verification of the topology during TPDM software bring up.
>
> Sample:
> 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
> cat /dev/tmc_etf0 > /data/etf-tpdm0.bin
>
> Signed-off-by: Tao Zhang <[email protected]>
> Signed-off-by: Mao Jinlong <[email protected]>
Reviewed-by: Suzuki K Poulose <[email protected]>