linux-kernel - Re: [PATCH v20 00/17] acpi, clocksource: add GTDT driver and GTDT support in arm_arch

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Message-ID: <CADyBb7sA_sMmTcBtXDSNNFzZ_BjVAUL+c-FXWmHaEnH_SXyCUg@mail.gmail.com>
Date:   Thu, 19 Jan 2017 19:06:10 +0800
From:   Fu Wei <fu.wei@...aro.org>
To:     Hanjun Guo <hanjun.guo@...aro.org>
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>,
        Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Sudeep Holla <sudeep.holla@....com>,
        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 v20 00/17] acpi, clocksource: add GTDT driver and GTDT
 support in arm_arch_timer

Hi Hanjun,

On 19 January 2017 at 17:20, Hanjun Guo <hanjun.guo@...aro.org> wrote:
> Hi Fuwei,
>
>
> On 2017/1/18 21:25, 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. Clean up printk() usage
>>         2. Rename the type macros
>>         3. Rename the PPI enum & enum values
>>         4. Move the type macro and PPI enum into the header file
>>         5. Add new enum for SPIs
>>         6. Rework PPI determination;
>>         7. Rework counter frequency detection;
>>         8. Refactor arch_timer_needs_probing, move it into DT init call
>>         9. 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
>>
>> Changelog:
>> v20: https://lkml.org/lkml/2017/1/18/
>>      Reorder the first 4 patches and split the 4th patches.
>>      Leave CNTHCTL_* as they originally were.
>>      Fix the bug in arch_timer_select_ppi.
>>      Split "Rework counter frequency detection" patch.
>>      Rework the arch_timer_detect_rate function.
>>      Improve the commit message of "Refactor MMIO timer probing".
>>      Rebase to 4.10.0-rc4
>
>
> Other than some minor comments I raised, the patch set
> looks fine to me, and I tested this patch set on D03,
> the percpu arch timer works fine as before.
>
> With the comments fixed,
> Reviewed-by: Hanjun Guo <hanjun.gu@...aro.org>
> Tested-by: Hanjun Guo <hanjun.gu@...aro.org>

Great thanks for your testing. :-)

will apply Reviewed-by: Hanjun Guo <hanjun.guo@...aro.org> on all patches,
and Tested-by: Hanjun Guo <hanjun.guo@...aro.org> on arch_timer patches.

>
> Thanks
> Hanjun



-- 
Best regards,

Fu Wei
Software Engineer
Red Hat