linux-kernel - [PATCH v2 0/7] Improvements to Qcom PCIe EP and EPF MHI drivers

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Date:   Mon, 17 Jul 2023 12:24:52 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     lpieralisi@...nel.org, kw@...ux.com
Cc:     kishon@...nel.org, bhelgaas@...gle.com, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH v2 0/7] Improvements to Qcom PCIe EP and EPF MHI drivers

Hi,

This series adds eDMA (embedded DMA) support to the Qcom PCIe EP and EPF 
MHI drivers for offloading the transfers between PCIe bus and the EP
memory. eDMA support makes use of the recently merged eDMA DMAEngine driver
and its integration with DWC PCIe EP core [1].

This series also adds Qcom SM8450 SoC support to EPF MHI driver that has
the eDMA support built-in.

- Mani

[1] https://lore.kernel.org/all/20230113171409.30470-1-Sergey.Semin@baikalelectronics.ru/

Changes in v2:

* Rebased on top of v6.5-rc1

Manivannan Sadhasivam (7):
  PCI: qcom-ep: Pass alignment restriction to the EPF core
  PCI: epf-mhi: Make use of the alignment restriction from EPF core
  PCI: qcom-ep: Add eDMA support
  PCI: epf-mhi: Add eDMA support
  PCI: epf-mhi: Add support for SM8450
  PCI: epf-mhi: Use iATU for small transfers
  PCI: endpoint: Add kernel-doc for pci_epc_mem_init() API

 drivers/pci/controller/dwc/pcie-qcom-ep.c    |   5 +-
 drivers/pci/endpoint/functions/pci-epf-mhi.c | 280 ++++++++++++++++++-
 drivers/pci/endpoint/pci-epc-mem.c           |  10 +
 3 files changed, 281 insertions(+), 14 deletions(-)

-- 
2.25.1