linux-kernel - [PATCH v4 0/5] EDAC: Versal NET: Add support for error notification

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Message-ID: <20250102174434.17677-1-shubhrajyoti.datta@amd.com>
Date: Thu, 2 Jan 2025 23:14:29 +0530
From: Shubhrajyoti Datta <shubhrajyoti.datta@....com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Rob Herring <robh@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Borislav Petkov <bp@...en8.de>, Tony Luck
	<tony.luck@...el.com>, James Morse <james.morse@....com>, "Mauro Carvalho
 Chehab" <mchehab@...nel.org>, Robert Richter <rric@...nel.org>, "Shubhrajyoti
 Datta" <shubhrajyoti.datta@....com>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-edac@...r.kernel.org>
CC: <git@....com>
Subject: [PATCH v4 0/5] EDAC: Versal NET: Add support for error notification


Adds support for the error notification.
Currently 20 errors has been tested.
This driver is receiving events over rpmsg.
It does not access the registers by itself instead the NMC
reads and sends the info by rpmsg

Also we register the edac once and it reports the errors for all the
events including the 8 DDRMC controllers. So while registering we give
the particulars of the 1st controller.


Changes in v4:
Update the compatible
align the example
Enhance the description for rproc
Update the compatible

Changes in v3:
make remove void

Changes in v2:
- Export the symbols for module compilation
- rename EDAC to memory controller
- update the compatible name
- Add remote proc handle
- Read the data width from the registers
- Remove the dwidth, rank and channel number the same is read from the RpMsg.
- remove reset
- Add the remote proc requests
- remove probe_once
- reorder the rpmsg registration
- the data width , rank and number of channel is read from message.

Shubhrajyoti Datta (5):
  cdx: export the symbols
  ras: export the log_non_standard_event
  cdx: add DDRMC commands
  dt-bindings: memory-controllers: Add support for Versal NET EDAC
  EDAC: Versal NET: Add support for error notification

 .../amd,versal-net-ddrmc5-1.0.yaml            |   41 +
 drivers/cdx/controller/mc_cdx_pcol.h          |   16 +
 drivers/cdx/controller/mcdi.c                 |    3 +
 drivers/edac/Kconfig                          |    9 +
 drivers/edac/Makefile                         |    1 +
 drivers/edac/versalnet_rpmsg_edac.c           | 1325 +++++++++++++++++
 drivers/ras/ras.c                             |    1 +
 7 files changed, 1396 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/amd,versal-net-ddrmc5-1.0.yaml
 create mode 100644 drivers/edac/versalnet_rpmsg_edac.c

-- 
2.17.1