IPC GateMP on the C66x device

HRi

Guru 10750 points

Hi,

Does the ICP GateMP on the C66x device is using the HW semaphores? Where can I see that on the IPC code?

Thanks,

0 ToddMullanix over 13 years ago

GateMP uses HW semaphores on the c66x devices.The GateMp.RemoteSystemProxy is set up in the GateMP.xs file:

var gateDel = Settings.getHWGate();
GateMP.RemoteSystemProxy = xdc.module(gateDel);

The getHWGate function in the family\Settings.xs file determines the device and plugs in the appropriate locking mechanism.

The actual HW Semaphore source code is in the <ipc_install_dir>\packages\ti\sdo\ipc\gates\GateHWSem.c file.

Todd

0 HRi over 13 years ago in reply to ToddMullanix

Guru 10750 points

Todd,

What HW semaphore numbers does the IPC is using from the 64 available?

Many Thanks,

0 ToddMullanix over 13 years ago in reply to HRi

By default, the it uses HW semaphores 0-31.

Todd

0 HRi over 13 years ago in reply to ToddMullanix

Guru 10750 points

Todd,

OK, so I can use any HW Sem. as the GateMP will check which is available and will use it, is this correct?

Thanks,

0 ToddMullanix over 13 years ago in reply to HRi

You can use Ipc_ObjType_OPENDYNAMIC and it gets an available for you.

0 HRi over 13 years ago in reply to ToddMullanix

Guru 10750 points

Todd,

OK, Thanks,

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