From mboxrd@z Thu Jan 1 00:00:00 1970 From: Santosh Shilimkar Subject: Re: [PATCH v3 0/7] of: setup dma parameters using dma-ranges and dma-coherent Date: Thu, 1 May 2014 09:19:18 -0400 Message-ID: <536249D6.3020008@ti.com> References: <1398353407-2345-1-git-send-email-santosh.shilimkar@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1398353407-2345-1-git-send-email-santosh.shilimkar-l0cyMroinI0@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Greg Kroah-Hartman , Russell King , Arnd Bergmann , Olof Johansson , Grant Likely , Rob Herring , Catalin Marinas , Linus Walleij , Grygorii Strashko List-Id: devicetree@vger.kernel.org Rob, Russell, On Thursday 24 April 2014 11:30 AM, Santosh Shilimkar wrote: > 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 > Cc: Russell King > Cc: Arnd Bergmann > Cc: Olof Johansson > Cc: Grant Likely > Cc: Rob Herring > Cc: Catalin Marinas > Cc: Linus Walleij > Cc: Grygorii Strashko > > 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(-) > How do we go about merging this series ? There is a dependency between the patches and hence the question. > > [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 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html