diff options
Diffstat (limited to 'docs/perf')
| -rw-r--r-- | docs/perf/index.rst | 5 | ||||
| -rw-r--r-- | docs/perf/psci-performance-juno.rst | 2 | ||||
| -rw-r--r-- | docs/perf/tsp.rst | 27 |
3 files changed, 33 insertions, 1 deletions
diff --git a/docs/perf/index.rst b/docs/perf/index.rst index 50833b8c8..0f49b4810 100644 --- a/docs/perf/index.rst +++ b/docs/perf/index.rst @@ -7,3 +7,8 @@ Performance & Testing :numbered: psci-performance-juno + tsp + +-------------- + +*Copyright (c) 2019, Arm Limited. All rights reserved.* diff --git a/docs/perf/psci-performance-juno.rst b/docs/perf/psci-performance-juno.rst index 4cc430265..c127c1c4a 100644 --- a/docs/perf/psci-performance-juno.rst +++ b/docs/perf/psci-performance-juno.rst @@ -168,7 +168,7 @@ the cache associated with power level 0 is flushed (L1). | 5 | 21 | 17 | 6 | +-------+---------------------+--------------------+--------------------------+ -The ``CLUSH_OVERHEAD`` times for lead CPU 4 and all CPUs in the non-lead cluster +The ``CFLUSH_OVERHEAD`` times for lead CPU 4 and all CPUs in the non-lead cluster are large because all other CPUs in the cluster are powered down during the test. The ``CPU_SUSPEND`` call powers down to the cluster level, requiring a flush of both L1 and L2 caches. diff --git a/docs/perf/tsp.rst b/docs/perf/tsp.rst new file mode 100644 index 000000000..f8b0048bf --- /dev/null +++ b/docs/perf/tsp.rst @@ -0,0 +1,27 @@ +Test Secure Payload (TSP) and Dispatcher (TSPD) +=============================================== + +Building the Test Secure Payload +-------------------------------- + +The TSP is coupled with a companion runtime service in the BL31 firmware, +called the TSPD. Therefore, if you intend to use the TSP, the BL31 image +must be recompiled as well. For more information on SPs and SPDs, see the +:ref:`firmware_design_sel1_spd` section in the :ref:`Firmware Design`. + +First clean the TF-A build directory to get rid of any previous BL31 binary. +Then to build the TSP image use: + +.. code:: shell + + make PLAT=<platform> SPD=tspd all + +An additional boot loader binary file is created in the ``build`` directory: + +:: + + build/<platform>/<build-type>/bl32.bin + +-------------- + +*Copyright (c) 2019, Arm Limited. All rights reserved.* |