Documentation/features/arch-support.txt

0001
0002 For generic kernel features that need architecture support, the
0003 arch-support.txt file in each feature directory shows the arch
0004 support matrix, for all upstream Linux architectures.
0005
0006 The meaning of entries in the tables is:
0007
0008     | ok |  # feature supported by the architecture
0009     |TODO|  # feature not yet supported by the architecture
0010     | .. |  # feature cannot be supported by the hardware
0011     | N/A|  # feature doesn't apply to the architecture
0012