[PATCH v4 00/18] coresight: Support for ARM Coresight SoC-600

[Suzuki K Poulose]

This series adds support for ARM Coresight SoC-600 IP, which implements
Coresight V3 architecture. It also does some clean up of the replicator
driver namings used in the driver to prevent confusions to the user.

The SoC-600 comes with an improved TMC which supports new features,
including Save-Restore and Software FIFO2 mode (for streaming the trace
data over functional I/O like USB/PCI).

This series only supports Save-Restore feature of the new ETR by reusing
the driver to perform additional setups required in case we are dealing
with an IP which supports it. Towards this we keep track of the capabilities
of the given TMC ETR. Some of the features are advertised via DEVID
register (address width, scatter gather support), while some are not
(save-restore). So we attach a static capability mask with the device
PID for the unadvertised features and detect the rest at device probe.

Tested on Juno (with Coresight SoC 400) and an FPGA based system
for SoC 600.

Applies on v4.13-rc1

Changes since V3:
 - Rebased to v4.13-rc1
 - Rename AxCACHE => AXCACHE, suggested by Mathieu
 - Fix checkpatch warnings againt space in comments.
 - Remove device initialisation message for replicator.
 - Add Reviewed-by tags for the DTS changes.

Changes since V2:
 - Fix typos in masks for ETM3.
 - Fix all dts for obsoleted compatible string for replicator.
 - Detect advertised capabilities at runtime.
 - Add support for detecting the address width at runtime, new
   feature in SoC-600.
 - Add support for split ARCACHE/WCACHE encoding for AXI transactions

Changes since V1
 - Rename coresight-replicator-qcom.c => coresight-dynamic-replicator.c
 - Fix PIDR2 codings for ETB-10, ETM3x
 - Fix cosmetic issues pointed out by  Mathieu
 - Fix commit description for
	 "coresight tmc: Handle configuration types properly"
 - Drop SWFIFO2 from the capability of SoC-600 TMC

Suzuki K Poulose (18):
  coresight replicator: Cleanup programmable replicator naming
  arm64: juno: dts: Use the new coresight replicator string
  arm: qcom-msm8974: dts: Update coresight replicator
  arm64: qcom-msm8916: dts: Update coresight replicator
  coresight: Extend the PIDR mask to cover relevant bits in PIDR2
  coresight: Add support for reading 64bit registers
  coresight tmc: Add helpers for accessing 64bit registers
  coresight tmc: Expose DBA and AXICTL
  coresight replicator: Expose replicator management registers
  coresight tmc: Handle configuration types properly
  coresight tmc etr: Add capabilitiy information
  coresight tmc: Detect support for scatter gather
  coresight tmc etr: Detect address width at runtime
  coresight tmc etr: Cleanup AXICTL register handling
  coresigh tmc etr: Setup AXI cache encoding for read transfers
  coresight tmc: Support for save-restore in ETR
  coresight tmc: Add support for Coresight SoC 600 TMC
  coresight: Add support for Coresight SoC 600 components

 .../devicetree/bindings/arm/coresight.txt          |  4 +-
 arch/arm/boot/dts/qcom-msm8974.dtsi                |  2 +-
 arch/arm64/boot/dts/arm/juno-base.dtsi             |  2 +-
 arch/arm64/boot/dts/qcom/msm8916.dtsi              |  2 +-
 drivers/hwtracing/coresight/Kconfig                | 10 +--
 drivers/hwtracing/coresight/Makefile               |  2 +-
 ...cator-qcom.c => coresight-dynamic-replicator.c} | 34 +++++++--
 drivers/hwtracing/coresight/coresight-etb10.c      |  4 +-
 drivers/hwtracing/coresight/coresight-etm3x.c      | 24 +++---
 drivers/hwtracing/coresight/coresight-funnel.c     |  9 ++-
 drivers/hwtracing/coresight/coresight-priv.h       | 35 +++++++--
 drivers/hwtracing/coresight/coresight-stm.c        |  8 +-
 drivers/hwtracing/coresight/coresight-tmc-etf.c    |  8 +-
 drivers/hwtracing/coresight/coresight-tmc-etr.c    | 37 +++++++---
 drivers/hwtracing/coresight/coresight-tmc.c        | 84 ++++++++++++++++++---
 drivers/hwtracing/coresight/coresight-tmc.h        | 86 +++++++++++++++++++++-
 drivers/hwtracing/coresight/coresight-tpiu.c       |  9 ++-
 17 files changed, 288 insertions(+), 72 deletions(-)
 rename drivers/hwtracing/coresight/{coresight-replicator-qcom.c => coresight-dynamic-replicator.c} (87%)

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2.7.5