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Date: Thu, 15 Sep 2016 04:09:33 +0800
From: fu.wei@...aro.org
To: 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,
Fu Wei <fu.wei@...aro.org>
Subject: [PATCH v13 0/8] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer
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.
(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 depends on the following patchset:
[UPDATE PATCH V11 1/8] ACPI: I/O Remapping Table (IORT) initial support
https://lkml.org/lkml/2016/9/12/949
This patchset has been tested on the following platforms:
(1)ARM Foundation v8 model
Changelog:
v13: https://lkml.org/lkml/2016/9/15/
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 (8):
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
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 | 309 +++++++++++++++++++++++++++++++++
drivers/clocksource/Kconfig | 2 +-
drivers/clocksource/arm_arch_timer.c | 324 +++++++++++++++++++++--------------
drivers/watchdog/Kconfig | 1 +
include/clocksource/arm_arch_timer.h | 32 ++++
include/linux/acpi.h | 7 +
9 files changed, 552 insertions(+), 128 deletions(-)
create mode 100644 drivers/acpi/arm64/gtdt.c
--
2.7.4
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