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Message-ID: <d8b5ca3f-d756-ae2e-012c-3cabc38dd39a@huawei.com>
Date: Thu, 17 Nov 2016 17:25:14 +0800
From: Xiongfeng Wang <wangxiongfeng2@...wei.com>
To: <fu.wei@...aro.org>, <rjw@...ysocki.net>, <lenb@...nel.org>,
<daniel.lezcano@...aro.org>, <tglx@...utronix.de>,
<marc.zyngier@....com>, <mark.rutland@....com>,
<lorenzo.pieralisi@....com>, <sudeep.holla@....com>,
<hanjun.guo@...aro.org>
CC: <linux-arm-kernel@...ts.infradead.org>,
<linaro-acpi@...ts.linaro.org>, <linux-kernel@...r.kernel.org>,
<linux-acpi@...r.kernel.org>, <rruigrok@...eaurora.org>,
<harba@...eaurora.org>, <cov@...eaurora.org>,
<timur@...eaurora.org>, <graeme.gregory@...aro.org>,
<al.stone@...aro.org>, <jcm@...hat.com>, <wei@...hat.com>,
<arnd@...db.de>, <catalin.marinas@....com>, <will.deacon@....com>,
<Suravee.Suthikulpanit@....com>, <leo.duran@....com>,
<wim@...ana.be>, <linux@...ck-us.net>,
<linux-watchdog@...r.kernel.org>, <tn@...ihalf.com>,
<christoffer.dall@...aro.org>, <julien.grall@....com>
Subject: Re: [PATCH v16 00/15] acpi, clocksource: add GTDT driver and GTDT
support in arm_arch_timer
Sorry for not describing specifically in the last mail.
I have applied all the patches of this patchset on Linux 4.9, and tested
the per-cpu timer and sbsa watchdog part, which function well on D05 board.
On 2016/11/17 11:34, Xiongfeng Wang wrote:
> Tested-by: wangxiongfeng2@...wei.com on D05 board.
>
>
> On 2016/11/16 21:48, 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, and some cleanups.
>> 5. separate out arch_timer_uses_ppi init code and fix a potential bug
>> 6. Refactor arch_timer_detect_rate to keep dt code only in *_of_init
>> 7. Refactor arch_timer_needs_probing, and call it only if acpi disabled.
>> 8. Introduce some new structs and refactor the timer init 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, also refactor
>> original memory-mapped timer dt support for reusing some common
>> code.
>>
>> This patchset has been tested on the following platforms with ACPI enabled:
>> (1)ARM Foundation v8 model
>>
>> Changelog:
>> v16: https://lkml.org/lkml/2016/
>> Fix patchset problem about static enum ppi_nr of 01/13 in v15.
>> Refactor arch_timer_detect_rate.
>> Refactor arch_timer_needs_probing.
>>
>> v15: https://lkml.org/lkml/2016/11/15/366
>> Re-order patches
>> Add arm_arch_timer refactoring patches to prepare for GTDT:
>> 1. rename some enums and defines, and some cleanups
>> 2. separate out arch_timer_uses_ppi init code and fix a potential bug
>> 3. Improve some new structs, refactor the timer init code.
>> Since the some structs have been changed, GTDT parser for memory-mapped
>> timer and SBSA Generic Watchdog timer have been update.
>>
>> v14: https://lkml.org/lkml/2016/9/28/573
>> Separate memory-mapped timer GTDT support into two patches
>> 1. Refactor the timer init code to prepare for GTDT
>> 2. Add GTDT support for memory-mapped timer
>>
>> v13: http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1231717.html
>> Improve arm_arch_timer code for memory-mapped
>> timer GTDT support, refactor original memory-mapped timer
>> dt support for reusing some common code.
>>
>> v12: https://lkml.org/lkml/2016/9/13/250
>> Rebase to latest Linux 4.8-rc6
>> Delete the confusing "skipping" in the error message.
>>
>> V11: https://lkml.org/lkml/2016/9/6/354
>> Rebase to latest Linux 4.8-rc5
>> Delete typedef (suggested by checkpatch.pl)
>>
>> V10: https://lkml.org/lkml/2016/7/26/215
>> Drop the "readq" patch.
>> Rebase to latest Linux 4.7.
>>
>> V9: https://lkml.org/lkml/2016/7/25/345
>> Improve pr_err message in acpi gtdt driver.
>> Update Commit message for 7/9
>> shorten the irq mapping function name
>> Improve GTDT driver for memory-mapped timer
>>
>> v8: https://lkml.org/lkml/2016/7/19/660
>> Improve "pr_fmt(fmt)" definition: add "ACPI" in front of "GTDT",
>> and also improve printk message.
>> Simplify is_timer_block and is_watchdog.
>> Merge acpi_gtdt_desc_init and gtdt_arch_timer_init into acpi_gtdt_init();
>> Delete __init in include/linux/acpi.h for GTDT API
>> Make ARM64 select GTDT.
>> Delete "#include <linux/module.h>" from acpi_gtdt.c
>> Simplify GT block parse code.
>>
>> v7: https://lkml.org/lkml/2016/7/13/769
>> Move the GTDT driver to drivers/acpi/arm64
>> Add add the ARM64-specific ACPI Support maintainers in MAINTAINERS
>> Merge 3 patches of GTDT parser driver.
>> Fix the for_each_platform_timer bug.
>>
>> v6: https://lkml.org/lkml/2016/6/29/580
>> split the GTDT driver to 4 parts: basic, arch_timer, memory-mapped timer,
>> and SBSA Generic Watchdog timer
>> Improve driver by suggestions and example code from Daniel Lezcano
>>
>> v5: https://lkml.org/lkml/2016/5/24/356
>> Sorting out all patches, simplify the API of GTDT driver:
>> GTDT driver just fills the data struct for arm_arch_timer driver.
>>
>> v4: https://lists.linaro.org/pipermail/linaro-acpi/2016-March/006667.html
>> Delete the kvm relevant patches
>> Separate two patches for sorting out the code for arm_arch_timer.
>> Improve irq info export code to allow missing irq info in GTDT table.
>>
>> v3: https://lkml.org/lkml/2016/2/1/658
>> Improve GTDT driver code:
>> (1)improve pr_* by defining pr_fmt(fmt)
>> (2)simplify gtdt_sbsa_gwdt_init
>> (3)improve gtdt_arch_timer_data_init, if table is NULL, it will try
>> to get GTDT table.
>> Move enum ppi_nr to arm_arch_timer.h, and add enum spi_nr.
>> Add arm_arch_timer get ppi from DT and GTDT support for kvm.
>>
>> v2: https://lkml.org/lkml/2015/12/2/10
>> Rebase to latest kernel version(4.4-rc3).
>> Fix the bug about the config problem,
>> use CONFIG_ACPI_GTDT instead of CONFIG_ACPI in arm_arch_timer.c
>>
>> v1: The first upstreaming version: https://lkml.org/lkml/2015/10/28/553
>>
>> Fu Wei (15):
>> clocksource/drivers/arm_arch_timer: Move enums and defines to header
>> file
>> clocksource/drivers/arm_arch_timer: Add a new enum for spi type
>> clocksource/drivers/arm_arch_timer: Improve printk relevant code
>> clocksource/drivers/arm_arch_timer: rename some enums and defines, and
>> some cleanups.
>> clocksource/drivers/arm_arch_timer: fix a bug in arch_timer_register
>> about arch_timer_uses_ppi
>> clocksource/drivers/arm_arch_timer: separate out arch_timer_uses_ppi
>> init code to prepare for GTDT.
>> clocksource/drivers/arm_arch_timer: Refactor arch_timer_detect_rate to
>> keep dt code in *_of_init
>> clocksource/drivers/arm_arch_timer: Refactor arch_timer_needs_probing,
>> and call it only if acpi disabled.
>> clocksource/drivers/arm_arch_timer: Introduce some new structs to
>> prepare for GTDT
>> clocksource/drivers/arm_arch_timer: Refactor the timer init code to
>> prepare for GTDT
>> acpi/arm64: Add GTDT table parse driver
>> clocksource/drivers/arm_arch_timer: Simplify ACPI support code.
>> acpi/arm64: Add memory-mapped timer support in GTDT driver
>> clocksource/drivers/arm_arch_timer: Add GTDT support for memory-mapped
>> timer
>> acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver
>>
>> arch/arm64/Kconfig | 1 +
>> drivers/acpi/arm64/Kconfig | 3 +
>> drivers/acpi/arm64/Makefile | 1 +
>> drivers/acpi/arm64/gtdt.c | 411 +++++++++++++++++++++++++++++
>> drivers/clocksource/arm_arch_timer.c | 484 ++++++++++++++++++++---------------
>> drivers/watchdog/Kconfig | 1 +
>> include/clocksource/arm_arch_timer.h | 61 ++++-
>> include/linux/acpi.h | 8 +
>> virt/kvm/arm/hyp/timer-sr.c | 6 +-
>> 9 files changed, 759 insertions(+), 217 deletions(-)
>> create mode 100644 drivers/acpi/arm64/gtdt.c
>>
>
>
> .
>
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