Merge tag 'coresight-next-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux into char-misc-next

Suzuki writes:

coresight: Updates for v6.3

 - Dynamic TraceID allocation scheme for CoreSight trace source. Allows systems
   with > 44 CPUs to use the ETMs. TraceID is advertised via AUX_OUTPUT_HWID
   packets in perf.data. Also allows allocating trace-ids for non-CPU bound trace
   components (e.g., Qualcomm TPDA).

- Support for Qualcomm TPDA and TPDM CoreSight devices.

- Support for Ultrasoc SMB CoreSight Sink buffer.

- Fixes for HiSilicon PTT driver

- MAINTAINERS update: Add Reviewer for HiSilicon PTT driver

- Bug fixes for CTI power management and sysfs mode

- Fix CoreSight ETM4x TRCSEQRSTEVRn access

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

* tag 'coresight-next-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux: (35 commits)
  coresight: tmc: Don't enable TMC when it's not ready.
  coresight: tpda: fix return value check in tpda_probe()
  Coresight: tpda/tpdm: remove incorrect __exit annotation
  coresight: perf: Output trace id only once
  coresight: Fix uninitialised variable use in coresight_disable
  Documentation: coresight: tpdm: Add dummy comment after sysfs list
  Documentation: coresight: Extend title heading syntax in TPDM and TPDA documentation
  Documentation: trace: Add documentation for TPDM and TPDA
  dt-bindings: arm: Adds CoreSight TPDA hardware definitions
  Coresight: Add TPDA link driver
  coresight-tpdm: Add integration test support
  coresight-tpdm: Add DSB dataset support
  dt-bindings: arm: Add CoreSight TPDM hardware
  Coresight: Add coresight TPDM source driver
  coresight: core: Use IDR for non-cpu bound sources' paths.
  coresight: trace-id: Add debug & test macros to Trace ID allocation
  coresight: events: PERF_RECORD_AUX_OUTPUT_HW_ID used for Trace ID
  kernel: events: Export perf_report_aux_output_id()
  coresight: trace id: Remove legacy get trace ID function.
  coresight: etmX.X: stm: Remove trace_id() callback
  ...

3 files changed, 45 insertions, 1 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
index 651602a61eac..234c33fbdb55 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
@@ -236,7 +236,7 @@ What:		/sys/bus/coresight/devices/<memory_map>.[etm|ptm]/traceid
 Date:		November 2014
 KernelVersion:	3.19
 Contact:	Mathieu Poirier <mathieu.poirier@linaro.org>
-Description: 	(RW) Holds the trace ID that will appear in the trace stream
+Description: 	(RO) Holds the trace ID that will appear in the trace stream
 		coming from this trace entity.
 
 What:		/sys/bus/coresight/devices/<memory_map>.[etm|ptm]/trigger_event
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..4a58e649550d
--- /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:		January 2023
+KernelVersion	6.2
+Contact:	Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+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/Documentation/ABI/testing/sysfs-bus-coresight-devices-ultra_smb b/Documentation/ABI/testing/sysfs-bus-coresight-devices-ultra_smb
new file mode 100644
index 000000000000..f560918ae738
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-ultra_smb
@@ -0,0 +1,31 @@
+What:		/sys/bus/coresight/devices/ultra_smb<N>/enable_sink
+Date:		January 2023
+KernelVersion:	6.3
+Contact:	Junhao He <hejunhao3@huawei.com>
+Description:	(RW) Add/remove a SMB device from a trace path. There can be
+		multiple sources for a single SMB device.
+
+What:		/sys/bus/coresight/devices/ultra_smb<N>/mgmt/buf_size
+Date:		January 2023
+KernelVersion:	6.3
+Contact:	Junhao He <hejunhao3@huawei.com>
+Description:	(RO) Shows the buffer size of each UltraSoc SMB device.
+
+What:		/sys/bus/coresight/devices/ultra_smb<N>/mgmt/buf_status
+Date:		January 2023
+KernelVersion:	6.3
+Contact:	Junhao He <hejunhao3@huawei.com>
+Description:	(RO) Shows the value of UltraSoc SMB status register.
+		BIT(0) is zero means buffer is empty.
+
+What:		/sys/bus/coresight/devices/ultra_smb<N>/mgmt/read_pos
+Date:		January 2023
+KernelVersion:	6.3
+Contact:	Junhao He <hejunhao3@huawei.com>
+Description:	(RO) Shows the value of UltraSoc SMB Read Pointer register.
+
+What:		/sys/bus/coresight/devices/ultra_smb<N>/mgmt/write_pos
+Date:		January 2023
+KernelVersion:	6.3
+Contact:	Junhao He <hejunhao3@huawei.com>
+Description:	(RO) Shows the value of UltraSoc SMB Write Pointer register.