linux-kernel - [PATCH V2 0/2] dmaengine: Support for IMG MDC

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: <1416002384-3525-1-git-send-email-abrestic@chromium.org>
Date:	Fri, 14 Nov 2014 13:59:41 -0800
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>
Cc:	Andrew Bresticker <abrestic@...omium.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Grant Likely <grant.likely@...aro.org>,
	James Hartley <james.hartley@...tec.com>,
	James Hogan <james.hogan@...tec.com>,
	Ezequiel Garcia <ezequiel.garcia@...tec.com>,
	Damien Horsley <Damien.Horsley@...tec.com>,
	Arnd Bergmann <arnd@...db.de>, dmaengine@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH V2 0/2] dmaengine: Support for IMG MDC

This series adds support for the IMG Multi-threaded DMA Controller (MDC)
which is found on IMG SoCs.  Currently this driver only supports the
variant found on the MIPS-based Pistachio SoC.

The MDC supports slave and memory-to-memory transfers on up to 32 channels.
Requests from channels are handled by MDC threads.  Thread assignments are
per-channel and are specified in the device-tree.

Tested on a platform based on the Pistachio SoC with additional patches.
Support for Pistachio will be submitted later.  Slave DMA was tested
with the recently submitted IMG SPFI driver [1] and memory-to-memory
DMA was tested with the dmatest module.

Based on Vinod's slave-dma/next + Maxime's device_control and slave caps
cleanup series [2].

Changes from v1:
 - addressed Arnd's review comments
 - rebased on Maxime's dmaengine cleanups

[1] https://lkml.org/lkml/2014/11/12/763
[2] https://lkml.org/lkml/2014/10/28/1067

Andrew Bresticker (2):
  dmaengine: Add binding document for IMG MDC
  dmaengine: Add driver for IMG MDC

 .../devicetree/bindings/dma/img-mdc-dma.txt        |  57 ++
 drivers/dma/Kconfig                                |   9 +
 drivers/dma/Makefile                               |   1 +
 drivers/dma/img-mdc-dma.c                          | 973 +++++++++++++++++++++
 4 files changed, 1040 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/img-mdc-dma.txt
 create mode 100644 drivers/dma/img-mdc-dma.c

-- 
2.1.0.rc2.206.gedb03e5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/