How to allocate memory

Linux and all remote cores must agree on how memory is divided between cores.

Note

The information on this page ONLY applies to SDK 9.1 or later! If you are using AM64x SDK 9.0 or earlier, please refer to the SDK 9.0 version of the AM64x academy. Here are the steps to access the SDK 9.0 version:

On the Left-hand menu, hover your mouse over “AM64x Academy”. Three dots will show up to the right of the label. Click on the 3 dots, and go to “Manage Versions”. Select AM64x Academy, Version 9.00.00.00 v2.

In the Left-hand menu, you should now see “AM64x Academy - 9.00.00.00 v2”

Allocating memory in Linux

Memory allocations are defined in the Linux devicetree. Some memory regions must be defined, while other regions are only needed in certain usecases.

Allocating memory in MCU+ projects

MCU+ projects define memory allocations in the linker command file. The memory allocations in the linker command file must align with the Linux devicetree file.

Memory allocation when the remote core does not interact with Linux

Some memory regions are not required if the remote core is initialized by something other than the Linux Remoteproc driver, and does not interact with Linux through RPMsg.