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Add AMD MDB Endpoint and non-LL mode Support

From:  Devendra K Verma <devendra.verma-AT-amd.com>
To:  <bhelgaas-AT-google.com>, <mani-AT-kernel.org>, <vkoul-AT-kernel.org>
Subject:  [RESEND PATCH v4 0/2] Add AMD MDB Endpoint and non-LL mode Support
Date:  Tue, 30 Sep 2025 18:47:53 +0530
Message-ID:  <20250930131755.3844-1-devendra.verma@amd.com>
Cc:  <dmaengine-AT-vger.kernel.org>, <linux-pci-AT-vger.kernel.org>, <linux-kernel-AT-vger.kernel.org>, <michal.simek-AT-amd.com>
Archive-link:  Article

This series of patch support the following:

 - AMD MDB Endpoint Support, as part of this patch following are
   added:
   o AMD supported device ID and vendor ID (Xilinx)
   o AMD MDB specific driver data
   o AMD specific VSEC capabilities to retrieve the base of
     phys address of MDB side DDR
   o Logic to assign the offsets to LL and data blocks if
     more number of channels are enabled than configured
     in the given pci_data struct.

 - Addition of non-LL mode
   o The IP supported non-LL mode functions
   o Flexibility to choose non-LL mode via dma_slave_config
     param peripheral_config, by the client
   o Allow IP utilization if LL mode is not available

Devendra K Verma (2):
  dmaengine: dw-edma: Add AMD MDB Endpoint Support
  dmaengine: dw-edma: Add non-LL mode

 drivers/dma/dw-edma/dw-edma-core.c    |  38 +++++-
 drivers/dma/dw-edma/dw-edma-core.h    |   1 +
 drivers/dma/dw-edma/dw-edma-pcie.c    | 160 ++++++++++++++++++++++++--
 drivers/dma/dw-edma/dw-hdma-v0-core.c |  62 +++++++++-
 include/linux/dma/edma.h              |   1 +
 5 files changed, 248 insertions(+), 14 deletions(-)

-- 
2.43.0




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