linux-kernel - [PATCH v2 0/3] dmaengine: arm-dma350: add support for shared interrupt mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251216123026.3519923-1-jun.guo@cixtech.com>
Date: Tue, 16 Dec 2025 20:30:23 +0800
From: Jun Guo <jun.guo@...tech.com>
To: peter.chen@...tech.com,
	fugang.duan@...tech.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	vkoul@...nel.org,
	ychuang3@...oton.com,
	schung@...oton.com,
	robin.murphy@....com
Cc: dmaengine@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	cix-kernel-upstream@...tech.com,
	linux-arm-kernel@...ts.infradead.org,
	jelly.jia@...tech.com,
	Jun Guo <jun.guo@...tech.com>
Subject: [PATCH v2 0/3] dmaengine: arm-dma350: add support for shared interrupt mode

The arm dma350 controller's hardware implementation varies: some
designs dedicate a separate interrupt line for each channel, while
others have all channels sharing a single interrupt.This patch adds
support for the hardware design where all DMA channels share a
single interrupt.

This series introduces the following enhancements for arm dma350
controller support on arm64 platforms:

Patch 1: Add a compatible string "cix,sky1-dma-350" for the cix
sky1 SoC.
Patch 2: Implement support for the shared interrupt design of the DMA
controller.
Patch 3: add DT nodes for DMA.

The patches have been tested on CIX SKY1 platform, the test steps are
as follows:
    % echo 2000 > /sys/module/dmatest/parameters/timeout
    % echo 1 > /sys/module/dmatest/parameters/iterations
    % echo "" > /sys/module/dmatest/parameters/channel
    % echo 1 > /sys/module/dmatest/parameters/run

Changes for v2:
- Update to kernel standards, enhance patch description, and refactor
 driver to use match data for hardware differentiation instead of
 compatible strings.

Jun Guo (3):
  dt-bindings: dma: arm-dma350: update DT binding docs for cix sky1 SoC
  dma: arm-dma350: add support for shared interrupt mode
  arm64: dts: cix: add DT nodes for DMA

 .../devicetree/bindings/dma/arm,dma-350.yaml  |  31 +++--
 arch/arm64/boot/dts/cix/sky1.dtsi             |   7 +
 drivers/dma/arm-dma350.c                      | 124 ++++++++++++++++--
 3 files changed, 142 insertions(+), 20 deletions(-)

-- 
2.34.1