linux-kernel - [GIT PULL v3] Coresight changes for v5.16

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Date:   Wed, 27 Oct 2021 13:52:24 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [GIT PULL v3] Coresight changes for v5.16

The following changes since commit 5816b3e6577eaa676ceb00a848f0fd65fe2adc29:

  Linux 5.15-rc3 (2021-09-26 14:08:19 -0700)

are available in the Git repository at:

  git@...olite.kernel.org:pub/scm/linux/kernel/git/coresight/linux.git tags/coresight-next-v5.16.v3

for you to fetch changes up to 561ced0bb90a4be298b7db5fb54f29731d74a3f6:

  arm64: errata: Enable TRBE workaround for write to out-of-range address (2021-10-27 11:46:06 -0600)

----------------------------------------------------------------
Coresight changes for v5.16

- A new option to make coresight cpu-debug capabilities available as early
as possible in the kernel boot process.

- Make trace sessions more enduring by coping with scenarios where events
are scheduled on CPUs that can't reach the selected sink.

- A set of improvement to make the TMC-ETR driver more efficient.

- Enhancements to the TRBE driver to correct several errata.

- An enhancement to make the AXI burts size configurable for TMC devices
that can't work with the default value.

- A fix in the CTI module to use the correct device when calling
pm_runtime_put()

- The addition of the Kryo-5xx device to the list of support ETMs.

Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>

----------------------------------------------------------------
Brian Norris (1):
      coresight: cpu-debug: Control default behavior via Kconfig

James Clark (1):
      coresight: Don't immediately close events that are run on invalid CPU/sink combos

Leo Yan (5):
      coresight: tmc-etr: Add barrier after updating AUX ring buffer
      coresight: tmc-etf: Add comment for store ordering
      coresight: tmc-etr: Use perf_output_handle::head for AUX ring buffer
      coresight: Update comments for removing cs_etm_find_snapshot()
      coresight: tmc-etr: Speed up for bounce buffer in flat mode

Suzuki K Poulose (28):
      arm64: Add Neoverse-N2, Cortex-A710 CPU part definition
      arm64: errata: Add detection for TRBE overwrite in FILL mode
      arm64: errata: Add workaround for TSB flush failures
      arm64: errata: Add detection for TRBE write to out-of-range
      coresight: etm4x: Save restore TRFCR_EL1
      coresight: etm4x: Use Trace Filtering controls dynamically
      coresight: etm-pmu: Ensure the AUX handle is valid
      coresight: trbe: Ensure the format flag is always set
      coresight: trbe: Drop duplicate TRUNCATE flags
      coresight: trbe: Unify the enabling sequence
      coresight: trbe: irq handler: Do not disable TRBE if no action is needed
      coresight: trbe: Fix handling of spurious interrupts
      coresight: trbe: Do not truncate buffer on IRQ
      coresight: trbe: End the AUX handle on truncation
      coresight: trbe: Prohibit trace before disabling TRBE
      coresight: trbe: Fix incorrect access of the sink specific data
      coresight: trbe: Defer the probe on offline CPUs
      coresight: trbe: Add a helper to calculate the trace generated
      coresight: trbe: Add a helper to pad a given buffer area
      coresight: trbe: Decouple buffer base from the hardware base
      coresight: trbe: Allow driver to choose a different alignment
      coresight: trbe: Add infrastructure for Errata handling
      coresight: trbe: Workaround TRBE errata overwrite in FILL mode
      coresight: trbe: Add a helper to determine the minimum buffer size
      coresight: trbe: Make sure we have enough space
      coresight: trbe: Work around write to out of range
      arm64: errata: Enable workaround for TRBE overwrite in FILL mode
      arm64: errata: Enable TRBE workaround for write to out-of-range address

Tanmay Jagdale (2):
      dt-bindings: coresight: Add burst size for TMC
      coresight: tmc: Configure AXI write burst size

Tao Zhang (2):
      coresight: cti: Correct the parameter for pm_runtime_put
      coresight: etm4x: Add ETM PID for Kryo-5XX

 Documentation/arm64/silicon-errata.rst             |  12 +
 .../devicetree/bindings/arm/coresight.txt          |   5 +
 arch/arm64/Kconfig                                 | 111 +++++
 arch/arm64/include/asm/barrier.h                   |  16 +-
 arch/arm64/include/asm/cputype.h                   |   4 +
 arch/arm64/kernel/cpu_errata.c                     |  64 +++
 arch/arm64/tools/cpucaps                           |   3 +
 drivers/hwtracing/coresight/Kconfig                |  13 +
 drivers/hwtracing/coresight/coresight-cpu-debug.c  |   2 +-
 drivers/hwtracing/coresight/coresight-cti-core.c   |   2 +-
 drivers/hwtracing/coresight/coresight-etb10.c      |   5 +-
 drivers/hwtracing/coresight/coresight-etm-perf.c   |  56 ++-
 drivers/hwtracing/coresight/coresight-etm4x-core.c | 101 +++-
 drivers/hwtracing/coresight/coresight-etm4x.h      |   9 +-
 .../coresight/coresight-self-hosted-trace.h        |  33 ++
 drivers/hwtracing/coresight/coresight-tmc-core.c   |  21 +-
 drivers/hwtracing/coresight/coresight-tmc-etf.c    |  10 +-
 drivers/hwtracing/coresight/coresight-tmc-etr.c    |  52 +-
 drivers/hwtracing/coresight/coresight-tmc.h        |   6 +-
 drivers/hwtracing/coresight/coresight-trbe.c       | 534 +++++++++++++++++----
 20 files changed, 905 insertions(+), 154 deletions(-)
 create mode 100644 drivers/hwtracing/coresight/coresight-self-hosted-trace.h