linux-kernel - [PATCH v3 0/7] of: setup dma parameters using dma-ranges and dma-coherent

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: <1398353407-2345-1-git-send-email-santosh.shilimkar@ti.com>
Date:	Thu, 24 Apr 2014 11:30:00 -0400
From:	Santosh Shilimkar <santosh.shilimkar@...com>
To:	<linux-kernel@...r.kernel.org>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Grygorii Strashko <grygorii.strashko@...com>
Subject: [PATCH v3 0/7] of: setup dma parameters using dma-ranges and dma-coherent

Here is an updated v3 of the series. Series introduces support for setting up
dma parameters based on device tree properties like 'dma-ranges' and
'dma-coherent' and also update to ARM 32 bit port. Earlier version of the
series can be found here [3], [2] and [1].

The 'dma-ranges' helps to take care of few DMAable system memory restrictions
by use of dma_pfn_offset which we maintain now per device. Arch code then
uses it for dma address translations for such cases. We update the
dma_pfn_offset accordingly during DT the device creation process.The
'dma-coherent' property is used to setup arch's coherent dma_ops.

Hopefully with acks, tested-by this version can get into 3.16 queue. I will
post a followup series for Keystone SOC which will use this infrastructure.
Linus W also wants to use this for ARM integrator platform dma offset issue.

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Russell King <linux@....linux.org.uk>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Olof Johansson <olof@...om.net>
Cc: Grant Likely <grant.likely@...aro.org>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Linus Walleij <linus.walleij@...aro.org>
Cc: Grygorii Strashko <grygorii.strashko@...com>

Grygorii Strashko (2):
  of: introduce of_dma_get_range() helper
  ARM: dma: Use dma_pfn_offset for dma address translation

Santosh Shilimkar (5):
  device: introduce per device dma_pfn_offset
  of: introduce of_dma_is_coherent() helper
  of: configure the platform device dma parameters
  ARM: dma: implement set_arch_dma_coherent_ops()
  ARM: dma: use phys_addr_t in __dma_page_[cpu_to_dev/dev_to_cpu]

 arch/arm/include/asm/dma-mapping.h |   28 ++++++++++--
 arch/arm/mm/dma-mapping.c          |    4 +-
 drivers/of/address.c               |   87 ++++++++++++++++++++++++++++++++++++
 drivers/of/platform.c              |   71 +++++++++++++++++++++++++++--
 include/linux/device.h             |    2 +
 include/linux/dma-mapping.h        |    7 +++
 include/linux/of_address.h         |    8 ++++
 include/linux/of_platform.h        |    6 +++
 8 files changed, 204 insertions(+), 9 deletions(-)

Regards,
Santosh

[1] http://www.spinics.net/lists/arm-kernel/msg311678.html
[2] https://lkml.org/lkml/2014/3/6/186
[3] https://lkml.org/lkml/2014/4/19/80
-- 
1.7.9.5

--
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/