[PATCH v2 0/3] dmaengine: dw-edma: Prepare channels for remote use

From: Koichiro Den

Date: Fri Aug 28 2026 - 12:36:38 EST


Hi,

This small series contains standalone refactoring and new infrastructure
for dmaengine and dw-edma.

For each patch, the commit message trailer describes its provenance,
keeping tags (incl. Reviewed-by) as-is.

It prepares PCIe EPC-local DMA channels for remote use. For context,
(b) is expected to be superseded by a reworked version of (a):

(a). vNTB-embedded v1
https://lore.kernel.org/r/20260312165005.1148676-1-den@xxxxxxxxxxxxx/
(b). PCI DMA EPF v7
https://lore.kernel.org/all/20260813063757.3131865-1-den@xxxxxxxxxxxxx/

I will post a reworked version of (a) shortly. It will depend on this
small series.

Best regards,
Koichiro
---
Changes in v2:
- Split and rework vNTB v1 patches 1, 4, and 5 into this prerequisite
series.
- Fold in the relevant PCI DMA EPF v7 review. See individual patch
trailers for details and links.

v1: https://lore.kernel.org/r/20260312165005.1148676-1-den@xxxxxxxxxxxxx/


Koichiro Den (3):
dmaengine: Allow drivers to assign static channel IDs
dmaengine: dw-edma: Configure remote interrupt routing
dmaengine: dw-edma: Account for the MSI vector offset

drivers/dma/dmaengine.c | 13 +++--
drivers/dma/dw-edma/dw-edma-core.c | 76 ++++++++++++++++++++++++------
include/linux/dma/edma.h | 6 +++
include/linux/dmaengine.h | 20 ++++++++
4 files changed, 96 insertions(+), 19 deletions(-)


base-commit: 0d995da5fb97e8c312834575604d4423eb6225b7
--
2.51.0