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[v4,0/8] Enable designware PCI EP EDMA locally.

Message ID 20220309211204.26050-1-Frank.Li@nxp.com (mailing list archive)
Headers show
Series Enable designware PCI EP EDMA locally. | expand

Message

Frank Li March 9, 2022, 9:11 p.m. UTC 
Default Designware EDMA just probe remotely at host side.
This patch allow EDMA driver can probe at EP side.

1. Clean up patch
   dmaengine: dw-edma: Detach the private data and chip info structures
   dmaengine: dw-edma: remove unused field irq in struct dw_edma_chip
   dmaengine: dw-edma: change rg_region to reg_base in struct
   dmaengine: dw-edma: rename wr(rd)_ch_cnt to ll_wr(rd)_cnt in struct

2. Enhance EDMA driver to allow prode eDMA at EP side
   dmaengine: dw-edma: add flags at struct dw_edma_chip

3. Bugs fix at EDMA driver when probe eDMA at EP side
   dmaengine: dw-edma: Fix programming the source & dest addresses for ep
   dmaengine: dw-edma: Don't rely on the deprecated "direction" member

4. change pci-epf-test to use EDMA driver to transfer data.
   PCI: endpoint: functions/pci-epf-test: Support PCI controller DMA

5. Using imx8dxl to do test, but some EP functions still have not
upstream yet. So below patch show how probe eDMA driver at EP
controller driver.
https://lore.kernel.org/linux-pci/20220309120149.GB134091@thinkpad/T/#m979eb506c73ab3cfca2e7a43635ecdaec18d8097


Frank Li (6):
  dmaengine: dw-edma: Detach the private data and chip info structures
  dmaengine: dw-edma: remove unused field irq in struct dw_edma_chip
  dmaengine: dw-edma: change rg_region to reg_base in struct
    dw_edma_chip
  dmaengine: dw-edma: rename wr(rd)_ch_cnt to ll_wr(rd)_cnt in struct
    dw_edma_chip
  dmaengine: dw-edma: add flags at struct dw_edma_chip
  PCI: endpoint: functions/pci-epf-test: Support PCI controller DMA

Manivannan Sadhasivam (2):
  dmaengine: dw-edma: Fix programming the source & dest addresses for ep
  dmaengine: dw-edma: Don't rely on the deprecated "direction" member

 drivers/dma/dw-edma/dw-edma-core.c            | 130 +++++++++++-------
 drivers/dma/dw-edma/dw-edma-core.h            |  32 +----
 drivers/dma/dw-edma/dw-edma-pcie.c            |  83 +++++------
 drivers/dma/dw-edma/dw-edma-v0-core.c         |  44 +++---
 drivers/dma/dw-edma/dw-edma-v0-debugfs.c      |  10 +-
 drivers/pci/endpoint/functions/pci-epf-test.c | 108 +++++++++++++--
 include/linux/dma/edma.h                      |  56 +++++++-
 7 files changed, 297 insertions(+), 166 deletions(-)