linux-kernel - Re: [PATCH v18 00/15] acpi, clocksource: add GTDT driver and GTDT support in arm_arch

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Date:   Mon, 16 Jan 2017 08:54:46 +0800
From:   Fu Wei <fu.wei@...aro.org>
To:     Mark Rutland <mark.rutland@....com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <marc.zyngier@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Sudeep Holla <sudeep.holla@....com>,
        Hanjun Guo <hanjun.guo@...aro.org>,
        linux-arm-kernel@...ts.infradead.org,
        Linaro ACPI Mailman List <linaro-acpi@...ts.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        rruigrok@...eaurora.org, "Abdulhamid, Harb" <harba@...eaurora.org>,
        Christopher Covington <cov@...eaurora.org>,
        Timur Tabi <timur@...eaurora.org>,
        G Gregory <graeme.gregory@...aro.org>,
        Al Stone <al.stone@...aro.org>, Jon Masters <jcm@...hat.com>,
        Wei Huang <wei@...hat.com>, Arnd Bergmann <arnd@...db.de>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>,
        Leo Duran <leo.duran@....com>,
        Wim Van Sebroeck <wim@...ana.be>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-watchdog@...r.kernel.org, Tomasz Nowicki <tn@...ihalf.com>,
        Christoffer Dall <christoffer.dall@...aro.org>,
        Julien Grall <julien.grall@....com>
Subject: Re: [PATCH v18 00/15] acpi, clocksource: add GTDT driver and GTDT
 support in arm_arch_timer

Hi Mark,

On 14 January 2017 at 19:34, Fu Wei <fu.wei@...aro.org> wrote:
> Hi Mark,
>
> On 14 January 2017 at 03:29, Mark Rutland <mark.rutland@....com> wrote:
>> Hi,
>>
>> On Fri, Dec 09, 2016 at 01:33:04AM +0800, fu.wei@...aro.org wrote:
>>> From: Fu Wei <fu.wei@...aro.org>
>>>
>>> This patchset:
>>>     (1)Preparation for adding GTDT support in arm_arch_timer:
>>>         1. Move some enums and marcos to header file;
>>>         2. Add a new enum for spi type;
>>>         3. Improve printk relevant code;
>>>         4. Rename some enums and defines;
>>>         5. Rework PPI determination;
>>>         6. Rework counter frequency detection;
>>>         7. Refactor arch_timer_needs_probing, move it into DT init call
>>>         8. Introduce some new structs and refactor the MMIO timer init code
>>>         for reusing some common code.
>>>
>>>     (2)Introduce ACPI GTDT parser: drivers/acpi/arm64/acpi_gtdt.c
>>>     Parse all kinds of timer in GTDT table of ACPI:arch timer,
>>>     memory-mapped timer and SBSA Generic Watchdog timer.
>>>     This driver can help to simplify all the relevant timer drivers,
>>>     and separate all the ACPI GTDT knowledge from them.
>>>
>>>     (3)Simplify ACPI code for arm_arch_timer
>>>
>>>     (4)Add GTDT support for ARM memory-mapped timer.
>>>
>>> This patchset has been tested on the following platforms with ACPI enabled:
>>>     (1)ARM Foundation v8 model
>>
>> Once v4.10-rc4 comes out this weekend, could you please rebase and
>> repost this?
>
> Yes, of course.
>
> I have rebased v19 to the latest v4.10-rc3-e96f8f1, it dosen't need
> any modification.
> I will rebase it every day, and will repost it if it need any  modification.
>
> But for now, V19 works well with the master branch of upstream kernel.
> Do I need to re-post it even if it doesn't need any improvement or
> modification? :-)

I just fetched the latest mainline kernel, and rebase v19 on the top
of 4.10-rc4.
I have double checked it, V19 works well with  4.10-rc4.
For rebasing,  it doesn't need any modification.

So please help me to review V19, I will improve it ASAP according to
your suggestion.

Many thanks!

>
>>
>> Marc and I will be happy to take a look then.
>
> Great thanks for your help!
>
>>
>> Thanks,
>> Mark.
>
>
>
> --
> Best regards,
>
> Fu Wei
> Software Engineer
> Red Hat



-- 
Best regards,

Fu Wei
Software Engineer
Red Hat