Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938839AbcKQDmx (ORCPT ); Wed, 16 Nov 2016 22:42:53 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:17111 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932423AbcKQDmt (ORCPT ); Wed, 16 Nov 2016 22:42:49 -0500 Subject: Re: [PATCH v16 00/15] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer To: , , , , , , , , , References: <1479304148-2965-1-git-send-email-fu.wei@linaro.org> CC: , , , , , , , , , , , , , , , , , , , , , , From: Xiongfeng Wang Message-ID: <944d11ac-3c0d-72c0-6888-df8e474e21bb@huawei.com> Date: Thu, 17 Nov 2016 11:34:28 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: <1479304148-2965-1-git-send-email-fu.wei@linaro.org> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.32.209] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7153 Lines: 159 Tested-by: wangxiongfeng2@huawei.com on D05 board. On 2016/11/16 21:48, fu.wei@linaro.org wrote: > From: Fu Wei > > 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 " 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 >