On 17/01/2023 14:41, Nipun Gupta wrote:

Introduces AMD CDX bus, which provides a mechanism to
discover/rescan CDX devices. The CDX devices are 
memory mapped on system bus for embedded CPUs.

CDX controller interacts with the firmware to query different
CDX devices present in the Fabric and expose them to the Linux
host on CDX bus.

This patch series:
- Introduces the CDX bus and CDX devices.
- Device tree binding for CDX controller
- Support for CDX bus in arm-smmu-v3 driver
- Add MCDI (Management CPU Driver Interface) as a protocol
  for communication with RPU Firmware
- Support RPMSg channel for Firmware communication

MSI patches for CDX are not added in this series as it's
support is being revisited as per patch series:
https://lore.kernel.org/all/20221111133158.196269823@linutronix.de/ (local)
It will be added as separate patches.

RFC changes with stubs were submitted at: 
https://lore.kernel.org/linux-arm-kernel/20221014044049.2557085-1-nipun.gupta@amd.com/ (local)

This is v5 then. Please mark it appropriately, otherwise it looks like
it is first submission.

Best regards,
Krzysztof


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