Re: [PATCH 0/4] Update K3 DSP remoteproc driver for C71x DSPs

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On 3/25/20 3:46 PM, Suman Anna wrote:
Hi All,

This series adds support for a new next generation 64-bit TI DSP based on
the TMS320C71x CorePac processor subsystem called the C71x. The support is
enabled through couple of enhancements to the remoteproc core (primarily to
support a 64-bit trace resource entry), and does depend on the K3 DSP
remoteproc driver posted earlier today [1].

The loading support leveraged the 64-bit ELF loader support code added by
Clement and already staged on the rproc-next branch. I am posting this
series separate from the C66x series because of the new 64-bit resource
type enhancement needs (patches 2 and 3). I have leveraged the existing
resource types as is by introducing a new version element, and am open to
ideas if it is desired to just define it as a separate resource type.

The C71x DSP boots using firmware segments loaded into the DDR with a 2 MB
aligned address requirement on the boot vectors. There is no support for
internal memory loading, and all internal memories shall be used as fast
RAMs/scatchpads by the firmware executing on the DSPs. IPC is through the
virtio-rpmsg transport. There is no support for Error Recovery, Power
Management or loading into on-chip SRAMs at present.

Following is the patch summary:
  - Patch 1 updates the K3 DSP bindings for C71x cores
  - Patch 2 introduces a concept of version element into existing resource types
  - Patch 3 adds support for a new 64-bit trace resource entry
  - Patch 4 enhances the K3 DSP remoteproc driver for C71x

I have separated out the C71 platform driver pieces (patches 1 & 4) and posted a v2 for those.

Appreciate any feedback on the core patches (patches 2 & 3) that add the minimal 64-bit trace support, as this also sets the direction for resource extensions. I can post the next version for those based on feedback.

regards
Suman


regards
Suman

[1] https://patchwork.kernel.org/cover/11458573/

Suman Anna (4):
   dt-bindings: remoteproc: k3-dsp: Update bindings for C71x DSPs
   remoteproc: introduce version element into resource type field
   remoteproc: add support for a new 64-bit trace version
   remoteproc/k3-dsp: Add support for C71x DSPs

  .../bindings/remoteproc/ti,k3-dsp-rproc.yaml  | 78 ++++++++++++++++---
  drivers/remoteproc/remoteproc_core.c          | 65 +++++++++++-----
  drivers/remoteproc/remoteproc_debugfs.c       | 50 ++++++++----
  drivers/remoteproc/ti_k3_dsp_remoteproc.c     | 17 ++++
  include/linux/remoteproc.h                    | 34 +++++++-
  5 files changed, 203 insertions(+), 41 deletions(-)





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