214 Chapter 11
Utilities
address decode
address decode
address_decode decodes 40-bit virtual address into the physical node,
smac, row, bus, and bank. It has the following format:
address_decode <40-bit address in hex>
In order to determine the current memory configuration,
address_decode invokes some sppdsh commands to read certain CSR
values so that it can take into account the board mapping, row mapping,
interleave values, and DIMM sizes present in the system. Consequently,
it must be run on a teststation that can access the node via sppdsh.
address_decode reports an error if the address entered does not
exist.
Example of address_decode use:
% address_decode 0x010f000020
In this example, the address decodes the following
• Node ID: 0
• SMAC: 7
• Bus: 3
• Row: 2
• Bank: 1
Example of itc_ioutil error:
% address_decode 0x01ff000020
This error detected non-existent row!
Decode failure
