blob: 70a1436a55c51dccb896187986b9609cbdc595e0 [file] [log] [blame]
Harrison Mutaifa2fd892023-05-11 09:50:31 +01001Runtime Instrumentation Testing - N1SDP
2=======================================
3
4For this test we used the N1 System Development Platform (`N1SDP`_), which
5contains an SoC consisting of two dual-core Arm N1 clusters.
6
7The following source trees and binaries were used:
8
9- TF-A [`v2.9-rc0-16-g666aec401`_]
10- TFTF [`v2.9-rc0`_]
11- SCP/MCP `Prebuilt Images`_
12
13Please see the Runtime Instrumentation `Testing Methodology`_ page for more
14details.
15
16Procedure
17---------
18
19#. Build TFTF with runtime instrumentation enabled:
20
21 .. code:: shell
22
23 make CROSS_COMPILE=aarch64-none-elf- PLAT=n1sdp \
24 TESTS=runtime-instrumentation all
25
26#. Build TF-A with the following build options:
27
28 .. code:: shell
29
30 make CROSS_COMPILE=aarch64-none-elf- PLAT=n1sdp \
31 ENABLE_RUNTIME_INSTRUMENTATION=1 fiptool all
32
33#. Fetch the SCP firmware images:
34
35 .. code:: shell
36
37 curl --fail --connect-timeout 5 --retry 5 \
38 -sLS -o build/n1sdp/release/scp_rom.bin \
39 https://downloads.trustedfirmware.org/tf-a/css_scp_2.12.0/n1sdp/release/n1sdp-bl1.bin
40 curl --fail --connect-timeout 5 \
41 --retry 5 -sLS -o build/n1sdp/release/scp_ram.bin \
42 https://downloads.trustedfirmware.org/tf-a/css_scp_2.12.0/n1sdp/release/n1sdp-bl2.bin
43
44#. Fetch the MCP firmware images:
45
46 .. code:: shell
47
48 curl --fail --connect-timeout 5 --retry 5 \
49 -sLS -o build/n1sdp/release/mcp_rom.bin \
50 https://downloads.trustedfirmware.org/tf-a/css_scp_2.12.0/n1sdp/release/n1sdp-mcp-bl1.bin
51 curl --fail --connect-timeout 5 --retry 5 \
52 -sLS -o build/n1sdp/release/mcp_ram.bin \
53 https://downloads.trustedfirmware.org/tf-a/css_scp_2.12.0/n1sdp/release/n1sdp-mcp-bl2.bin
54
55#. Using the fiptool, create a new FIP package and append the SCP ram image onto
56 it.
57
58 .. code:: shell
59
60 ./tools/fiptool/fiptool create --blob \
61 uuid=cfacc2c4-15e8-4668-82be-430a38fad705,file=build/n1sdp/release/bl1.bin \
62 --scp-fw build/n1sdp/release/scp_ram.bin build/n1sdp/release/scp_fw.bin
63
64#. Append the MCP image to the FIP.
65
66 .. code:: shell
67
68 ./tools/fiptool/fiptool create \
69 --blob uuid=54464222-a4cf-4bf8-b1b6-cee7dade539e,file=build/n1sdp/release/mcp_ram.bin \
70 build/n1sdp/release/mcp_fw.bin
71
72#. Then, add TFTF as the Non-Secure workload in the FIP image:
73
74 .. code:: shell
75
76 make CROSS_COMPILE=aarch64-none-elf- PLAT=n1sdp \
77 ENABLE_RUNTIME_INSTRUMENTATION=1 SCP_BL2=/dev/null \
78 BL33=<path/to/tftf.bin> fip
79
80#. Load the following images onto the development board: ``fip.bin``,
81 ``scp_rom.bin``, ``scp_ram.bin``, ``mcp_rom.bin``, and ``mcp_ram.bin``.
82
83.. note::
84
85 These instructions presume you have a complete firmware stack. The N1SDP
86 `user guide`_ provides a detailed explanation on how to get setup from
87 scratch.
88
89Results
90-------
91
92``CPU_SUSPEND`` to deepest power level
93~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
94
95.. table:: ``CPU_SUSPEND`` latencies s) to deepest power level in
96 parallel
97
98 +---------+------+-----------+---------+-------------+
99 | Cluster | Core | Powerdown | Wakekup | Cache Flush |
100 +=========+======+===========+=========+=============+
101 | 0 | 0 | 3.44 | 10.04 | 0.4 |
102 +---------+------+-----------+---------+-------------+
103 | 0 | 1 | 4.98 | 12.72 | 0.16 |
104 +---------+------+-----------+---------+-------------+
105 | 1 | 0 | 3.58 | 15.42 | 0.2 |
106 +---------+------+-----------+---------+-------------+
107 | 1 | 1 | 5.24 | 17.78 | 0.18 |
108 +---------+------+-----------+---------+-------------+
109
110.. table:: ``CPU_SUSPEND`` latencies s) to deepest power level in
111 serial
112
113 +---------+------+-----------+---------+-------------+
114 | Cluster | Core | Powerdown | Wakekup | Cache Flush |
115 +=========+======+===========+=========+=============+
116 | 0 | 0 | 1.82 | 9.98 | 0.32 |
117 +---------+------+-----------+---------+-------------+
118 | 0 | 1 | 1.96 | 9.96 | 0.18 |
119 +---------+------+-----------+---------+-------------+
120 | 1 | 0 | 2.0 | 10.5 | 0.16 |
121 +---------+------+-----------+---------+-------------+
122 | 1 | 1 | 2.22 | 10.56 | 0.16 |
123 +---------+------+-----------+---------+-------------+
124
125``CPU_SUSPEND`` to power level 0
126~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
127
128.. table:: ``CPU_SUSPEND`` latencies s) to power level 0 in
129 parallel
130
131 +---------+------+-----------+---------+-------------+
132 | Cluster | Core | Powerdown | Wakekup | Cache Flush |
133 +=========+======+===========+=========+=============+
134 | 0 | 0 | 1.52 | 11.84 | 0.34 |
135 +---------+------+-----------+---------+-------------+
136 | 0 | 1 | 1.1 | 13.66 | 0.14 |
137 +---------+------+-----------+---------+-------------+
138 | 1 | 0 | 2.18 | 9.48 | 0.18 |
139 +---------+------+-----------+---------+-------------+
140 | 1 | 1 | 2.06 | 14.4 | 0.16 |
141 +---------+------+-----------+---------+-------------+
142
143.. table:: ``CPU_SUSPEND`` latencies s) to power level 0 in serial
144
145 +---------+------+-----------+---------+-------------+
146 | Cluster | Core | Powerdown | Wakekup | Cache Flush |
147 +=========+======+===========+=========+=============+
148 | 0 | 0 | 1.54 | 9.34 | 0.3 |
149 +---------+------+-----------+---------+-------------+
150 | 0 | 1 | 1.88 | 9.5 | 0.16 |
151 +---------+------+-----------+---------+-------------+
152 | 1 | 0 | 1.86 | 9.86 | 0.2 |
153 +---------+------+-----------+---------+-------------+
154 | 1 | 1 | 2.02 | 9.64 | 0.18 |
155 +---------+------+-----------+---------+-------------+
156
157``CPU_OFF`` on all non-lead CPUs
158~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
159
160``CPU_OFF`` on all non-lead CPUs in sequence then, ``CPU_SUSPEND`` on the lead
161core to the deepest power level.
162
163.. table:: ``CPU_OFF`` latencies s) on all non-lead CPUs
164
165 +---------+------+-----------+---------+-------------+
166 | Cluster | Core | Powerdown | Wakekup | Cache Flush |
167 +=========+======+===========+=========+=============+
168 | 0 | 0 | 1.86 | 9.88 | 0.32 |
169 +---------+------+-----------+---------+-------------+
170 | 0 | 1 | 21.1 | 12.44 | 0.42 |
171 +---------+------+-----------+---------+-------------+
172 | 1 | 0 | 21.22 | 13.2 | 0.32 |
173 +---------+------+-----------+---------+-------------+
174 | 1 | 1 | 21.56 | 13.18 | 0.54 |
175 +---------+------+-----------+---------+-------------+
176
177``CPU_VERSION`` in parallel
178~~~~~~~~~~~~~~~~~~~~~~~~~~~
179
180.. table:: ``CPU_VERSION`` latency s) in parallel on all cores
181
182 +-------------+--------+--------------+
183 | Cluster | Core | Latency |
184 +=============+========+==============+
185 | 0 | 0 | 0.08 |
186 +-------------+--------+--------------+
187 | 0 | 1 | 0.22 |
188 +-------------+--------+--------------+
189 | 1 | 0 | 0.28 |
190 +-------------+--------+--------------+
191 | 1 | 1 | 0.26 |
192 +-------------+--------+--------------+
193
194--------------
195
196*Copyright (c) 2023, Arm Limited. All rights reserved.*
197
198.. _v2.9-rc0-16-g666aec401: https://review.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a/+/refs/heads/v2.9-rc0-16-g666aec401
199.. _v2.9-rc0: https://review.trustedfirmware.org/plugins/gitiles/TF-A/tf-a-tests/+/refs/tags/v2.9-rc0
200.. _user guide: https://gitlab.arm.com/arm-reference-solutions/arm-reference-solutions-docs/-/blob/master/docs/n1sdp/user-guide.rst
201.. _Prebuilt Images: https://downloads.trustedfirmware.org/tf-a/css_scp_2.11.0/n1sdp/release/
202.. _N1SDP: https://developer.arm.com/documentation/101489/latest
203.. _Testing Methodology: ../perf/psci-performance-methodology.html