Re: [PATCH v20 00/17] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer

Fu Wei
2017-01-19T11:06:10Z

Hi Hanjun,

On 19 January 2017 at 17:20, Hanjun Guo <hanjun.guo@linaro.org> wrote:
> Hi Fuwei,
>
>
> On 2017/1/18 21:25, fu.wei@linaro.org wrote:
>>
>> From: Fu Wei <fu.wei@linaro.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@linaro.org>
> Tested-by: Hanjun Guo <hanjun.gu@linaro.org>

Great thanks for your testing. :-)

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

>
> Thanks
> Hanjun

--
Best regards,

Fu Wei
Software Engineer
Red Hat