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Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in GTDT driver

From Will Deacon <will.deacon@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in GTDT driver
Date 2017-04-03 11:50 +0200
Message-ID <ts6My-55V-17@gated-at.bofh.it> (permalink)
References <tr905-7Ov-7@gated-at.bofh.it> <tr907-7Ov-39@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Sat, Apr 01, 2017 at 01:51:03AM +0800, fu.wei@linaro.org wrote:
> From: Fu Wei <fu.wei@linaro.org>
> 
> On platforms booting with ACPI, architected memory-mapped timers'
> configuration data is provided by firmware through the ACPI GTDT
> static table.
> 
> The clocksource architected timer kernel driver requires a firmware
> interface to collect timer configuration and configure its driver.
> this infrastructure is present for device tree systems, but it is
> missing on systems booting with ACPI.
> 
> Implement the kernel infrastructure required to parse the static
> ACPI GTDT table so that the architected timer clocksource driver can
> make use of it on systems booting with ACPI, therefore enabling
> the corresponding timers configuration.
> 
> Signed-off-by: Fu Wei <fu.wei@linaro.org>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> ---
>  drivers/acpi/arm64/gtdt.c | 146 ++++++++++++++++++++++++++++++++++++++++++++++
>  include/linux/acpi.h      |   1 +
>  2 files changed, 147 insertions(+)

We need Lorenzo's ack on this.

Will

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Thread

[PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer fu.wei@linaro.org - 2017-03-31 20:00 +0200
  [PATCH v23 06/11] clocksource: arm_arch_timer: refactor MMIO timer probing. fu.wei@linaro.org - 2017-03-31 20:00 +0200
    Re: [PATCH v23 06/11] clocksource: arm_arch_timer: refactor MMIO  timer probing. Mark Rutland <mark.rutland@arm.com> - 2017-04-05 20:50 +0200
      Re: [PATCH v23 06/11] clocksource: arm_arch_timer: refactor MMIO  timer probing. Fu Wei <fu.wei@linaro.org> - 2017-04-06 12:50 +0200
  [PATCH v23 04/11] clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call fu.wei@linaro.org - 2017-03-31 20:00 +0200
  [PATCH v23 08/11] clocksource: arm_arch_timer: simplify ACPI support code. fu.wei@linaro.org - 2017-03-31 20:00 +0200
  [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in GTDT driver fu.wei@linaro.org - 2017-03-31 20:00 +0200
    Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Will Deacon <will.deacon@arm.com> - 2017-04-03 11:50 +0200
    Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-04-03 12:50 +0200
      Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Fu Wei <fu.wei@linaro.org> - 2017-04-06 19:20 +0200
    Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Mark Rutland <mark.rutland@arm.com> - 2017-04-05 20:40 +0200
      Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Mark Rutland <mark.rutland@arm.com> - 2017-04-06 12:10 +0200
      Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Fu Wei <fu.wei@linaro.org> - 2017-04-06 18:50 +0200
        Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Mark Rutland <mark.rutland@arm.com> - 2017-04-06 19:30 +0200
          Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Fu Wei <fu.wei@linaro.org> - 2017-04-06 19:50 +0200
            Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Mark Rutland <mark.rutland@arm.com> - 2017-04-06 20:00 +0200
              Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in  GTDT driver Fu Wei <fu.wei@linaro.org> - 2017-04-06 20:10 +0200
  [PATCH v23 07/11] acpi/arm64: Add GTDT table parse driver fu.wei@linaro.org - 2017-03-31 20:00 +0200
  [PATCH v23 05/11] clocksource: arm_arch_timer: add structs to describe MMIO timer fu.wei@linaro.org - 2017-03-31 20:00 +0200
  [PATCH v23 01/11] clocksource: arm_arch_timer: add MMIO CNTFRQ helper fu.wei@linaro.org - 2017-03-31 20:00 +0200
  [PATCH v23 11/11] acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver fu.wei@linaro.org - 2017-03-31 20:00 +0200
  [PATCH v23 02/11] clocksource: arm_arch_timer: split dt-only rate handling fu.wei@linaro.org - 2017-03-31 20:00 +0200
  [PATCH v23 03/11] clocksource: arm_arch_timer: refactor arch_timer_needs_probing fu.wei@linaro.org - 2017-03-31 20:00 +0200
  Re: [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT  support in arm_arch_timer Xiongfeng Wang <wangxiongfeng2@huawei.com> - 2017-04-01 04:20 +0200
    Re: [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT  support in arm_arch_timer Fu Wei <fu.wei@linaro.org> - 2017-04-01 05:50 +0200
  Re: [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT  support in arm_arch_timer Timur Tabi <timur@codeaurora.org> - 2017-04-04 22:40 +0200

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