From: Santosh Shilimkar <santosh.shilimkar@ti.com>
To: Rob Herring <robherring2@gmail.com>,
Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
Grant Likely <grant.likely@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Linus Walleij <linus.walleij@linaro.org>,
Grygorii Strashko <grygorii.strashko@ti.com>
Subject: Re: [PATCH v3 0/7] of: setup dma parameters using dma-ranges and dma-coherent
Date: Fri, 2 May 2014 12:41:43 -0400 [thread overview]
Message-ID: <5363CAC7.3020706@ti.com> (raw)
In-Reply-To: <CAL_JsqKcQ3eHPVGmz7LwE-s1KdkOAKTiF43XPjD3bVS2ghKLJA@mail.gmail.com>
On Friday 02 May 2014 10:41 AM, Rob Herring wrote:
> On Thu, May 1, 2014 at 8:25 AM, Russell King - ARM Linux
> <linux@arm.linux.org.uk> wrote:
>> On Thu, May 01, 2014 at 09:19:18AM -0400, Santosh Shilimkar wrote:
>>> 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 <gregkh@linuxfoundation.org>
>>>> Cc: Russell King <linux@arm.linux.org.uk>
>>>> Cc: Arnd Bergmann <arnd@arndb.de>
>>>> Cc: Olof Johansson <olof@lixom.net>
>>>> Cc: Grant Likely <grant.likely@linaro.org>
>>>> Cc: Rob Herring <robh+dt@kernel.org>
>>>> Cc: Catalin Marinas <catalin.marinas@arm.com>
>>>> Cc: Linus Walleij <linus.walleij@linaro.org>
>>>> Cc: Grygorii Strashko <grygorii.strashko@ti.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(-)
>>>>
>>> How do we go about merging this series ? There is a dependency
>>> between the patches and hence the question.
>>
>> I don't know anymore. People today want to assert exclusive rights over
>> parts of the kernel tree, which makes this kind of cross-patching rather
>> impossible.
>
> I can take this series or provide an ack for the DT parts. Either way
> it does not matter to me.
>
>> The only workable solution I can see is the long winded way to split the
>> series up, merge the first set of dependencies in one merge window, and
>> hold the rest back for the following merge window. Not ideal, but it
>> stops the arguments.
>
> That should not be necessary. We should be able to sort this out as it
> is not a difficult problem.
>
yeah. After addressing those few minor comments, I will create a pull
request for both RMK and arm-soc to pull from with your ack. That way
I can also add keystone specific parts on top of this series to arm-soc.
Regards,
Santosh
next prev parent reply other threads:[~2014-05-02 16:42 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-24 15:30 [PATCH v3 0/7] of: setup dma parameters using dma-ranges and dma-coherent Santosh Shilimkar
2014-04-24 15:30 ` [PATCH v3 1/7] device: introduce per device dma_pfn_offset Santosh Shilimkar
2014-05-02 1:01 ` Rob Herring
2014-04-24 15:30 ` [PATCH v3 2/7] of: introduce of_dma_get_range() helper Santosh Shilimkar
2014-05-02 1:06 ` Rob Herring
2014-04-24 15:30 ` [PATCH v3 3/7] of: introduce of_dma_is_coherent() helper Santosh Shilimkar
2014-05-02 0:56 ` Rob Herring
2014-05-05 21:45 ` Santosh Shilimkar
2014-05-05 22:06 ` Rob Herring
2014-04-24 15:30 ` [PATCH v3 4/7] of: configure the platform device dma parameters Santosh Shilimkar
2014-04-29 14:41 ` Grant Likely
2014-04-30 14:19 ` Santosh Shilimkar
2014-05-01 13:12 ` Grant Likely
2014-05-01 13:16 ` Santosh Shilimkar
2014-05-02 9:58 ` Arnd Bergmann
2014-05-02 13:13 ` Santosh Shilimkar
2014-05-02 15:13 ` Arnd Bergmann
2014-05-27 12:56 ` Grant Likely
2014-05-27 13:30 ` Arnd Bergmann
2014-05-28 8:23 ` Linus Walleij
2014-05-28 13:29 ` Arnd Bergmann
2014-05-28 13:32 ` Linus Walleij
2014-05-28 14:04 ` Santosh Shilimkar
2014-05-29 14:01 ` Linus Walleij
2014-05-29 14:08 ` Santosh Shilimkar
2014-05-29 19:24 ` Arnd Bergmann
2014-05-29 20:04 ` Santosh Shilimkar
2014-05-02 0:49 ` Rob Herring
2014-05-05 21:47 ` Santosh Shilimkar
2014-05-05 22:08 ` Rob Herring
2014-05-06 9:40 ` Arnd Bergmann
2014-05-06 20:44 ` Santosh Shilimkar
2014-05-07 13:24 ` Santosh Shilimkar
2014-05-02 16:54 ` Bjorn Helgaas
2014-05-02 18:59 ` Arnd Bergmann
2014-05-05 20:45 ` Bjorn Helgaas
2014-05-05 20:55 ` Arnd Bergmann
2014-05-05 22:28 ` Bjorn Helgaas
2014-05-06 3:44 ` Benjamin Herrenschmidt
2014-05-06 9:54 ` Arnd Bergmann
2014-05-06 13:32 ` Santosh Shilimkar
2014-04-24 15:30 ` [PATCH v3 5/7] ARM: dma: Use dma_pfn_offset for dma address translation Santosh Shilimkar
2014-05-02 14:32 ` Rob Herring
2014-05-02 14:58 ` Russell King - ARM Linux
2014-05-02 15:05 ` Santosh Shilimkar
2014-05-05 19:50 ` Russell King - ARM Linux
2014-05-05 21:43 ` Santosh Shilimkar
2014-04-24 15:30 ` [PATCH v3 6/7] ARM: dma: implement set_arch_dma_coherent_ops() Santosh Shilimkar
2014-05-02 0:58 ` Rob Herring
2014-04-24 15:30 ` [PATCH v3 7/7] ARM: dma: use phys_addr_t in __dma_page_[cpu_to_dev/dev_to_cpu] Santosh Shilimkar
2014-04-24 15:45 ` Will Deacon
2014-05-01 13:19 ` [PATCH v3 0/7] of: setup dma parameters using dma-ranges and dma-coherent Santosh Shilimkar
2014-05-01 13:25 ` Russell King - ARM Linux
2014-05-01 14:06 ` Santosh Shilimkar
2014-05-02 14:41 ` Rob Herring
2014-05-02 16:41 ` Santosh Shilimkar [this message]
2014-05-14 10:12 ` Grant Likely
2014-06-02 6:37 ` Shawn Guo
2014-06-02 13:24 ` Santosh Shilimkar
2014-06-02 15:06 ` Arnd Bergmann
2014-06-02 15:54 ` Santosh Shilimkar
2014-06-02 19:00 ` Arnd Bergmann
2014-06-02 19:08 ` Santosh Shilimkar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5363CAC7.3020706@ti.com \
--to=santosh.shilimkar@ti.com \
--cc=arnd@arndb.de \
--cc=catalin.marinas@arm.com \
--cc=devicetree@vger.kernel.org \
--cc=grant.likely@linaro.org \
--cc=gregkh@linuxfoundation.org \
--cc=grygorii.strashko@ti.com \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=olof@lixom.net \
--cc=robh+dt@kernel.org \
--cc=robherring2@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).