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From: Will Deacon <will.deacon@arm.com>
To: fu.wei@linaro.org
Cc: rjw@rjwysocki.net, lenb@kernel.org, daniel.lezcano@linaro.org,
	tglx@linutronix.de, marc.zyngier@arm.com, mark.rutland@arm.com,
	lorenzo.pieralisi@arm.com, sudeep.holla@arm.com,
	hanjun.guo@linaro.org, linux-arm-kernel@lists.infradead.org,
	linaro-acpi@lists.linaro.org, linux-kernel@vger.kernel.org,
	linux-acpi@vger.kernel.org, rruigrok@codeaurora.org,
	harba@codeaurora.org, cov@codeaurora.org, timur@codeaurora.org,
	graeme.gregory@linaro.org, al.stone@linaro.org, jcm@redhat.com,
	wei@redhat.com, arnd@arndb.de, catalin.marinas@arm.com,
	Suravee.Suthikulpanit@amd.com, leo.duran@amd.com, wim@iguana.be,
	linux@roeck-us.net, linux-watchdog@vger.kernel.org,
	tn@semihalf.com, christoffer.dall@linaro.org,
	julien.grall@arm.com
Subject: Re: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in GTDT driver
Date: Mon, 3 Apr 2017 10:49:45 +0100	[thread overview]
Message-ID: <20170403094944.GC5706@arm.com> (raw)
In-Reply-To: <20170331175105.8370-10-fu.wei@linaro.org>

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

WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in GTDT driver
Date: Mon, 3 Apr 2017 10:49:45 +0100	[thread overview]
Message-ID: <20170403094944.GC5706@arm.com> (raw)
In-Reply-To: <20170331175105.8370-10-fu.wei@linaro.org>

On Sat, Apr 01, 2017 at 01:51:03AM +0800, fu.wei at 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

  reply	other threads:[~2017-04-03  9:49 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-31 17:50 [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer fu.wei
2017-03-31 17:50 ` fu.wei at linaro.org
2017-03-31 17:50 ` [PATCH v23 01/11] clocksource: arm_arch_timer: add MMIO CNTFRQ helper fu.wei
2017-03-31 17:50   ` fu.wei at linaro.org
2017-03-31 17:50 ` [PATCH v23 02/11] clocksource: arm_arch_timer: split dt-only rate handling fu.wei
2017-03-31 17:50   ` fu.wei at linaro.org
2017-03-31 17:50 ` [PATCH v23 03/11] clocksource: arm_arch_timer: refactor arch_timer_needs_probing fu.wei
2017-03-31 17:50   ` fu.wei at linaro.org
2017-03-31 17:50 ` [PATCH v23 04/11] clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call fu.wei
2017-03-31 17:50   ` fu.wei at linaro.org
2017-03-31 17:50 ` [PATCH v23 05/11] clocksource: arm_arch_timer: add structs to describe MMIO timer fu.wei
2017-03-31 17:50   ` fu.wei at linaro.org
2017-03-31 17:51 ` [PATCH v23 06/11] clocksource: arm_arch_timer: refactor MMIO timer probing fu.wei
2017-03-31 17:51   ` fu.wei at linaro.org
2017-04-05 18:42   ` Mark Rutland
2017-04-05 18:42     ` Mark Rutland
2017-04-06 10:45     ` Fu Wei
2017-04-06 10:45       ` Fu Wei
2017-04-06 10:45       ` Fu Wei
2017-03-31 17:51 ` [PATCH v23 07/11] acpi/arm64: Add GTDT table parse driver fu.wei
2017-03-31 17:51   ` fu.wei at linaro.org
2017-03-31 17:51 ` [PATCH v23 08/11] clocksource: arm_arch_timer: simplify ACPI support code fu.wei
2017-03-31 17:51   ` fu.wei at linaro.org
2017-03-31 17:51 ` [PATCH v23 09/11] acpi/arm64: Add memory-mapped timer support in GTDT driver fu.wei
2017-03-31 17:51   ` fu.wei at linaro.org
2017-04-03  9:49   ` Will Deacon [this message]
2017-04-03  9:49     ` Will Deacon
     [not found]   ` <20170331175105.8370-10-fu.wei-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2017-04-03 10:45     ` Lorenzo Pieralisi
2017-04-03 10:45       ` Lorenzo Pieralisi
2017-04-03 10:45       ` Lorenzo Pieralisi
2017-04-06 17:11       ` Fu Wei
2017-04-06 17:11         ` Fu Wei
2017-04-06 17:11         ` Fu Wei
2017-04-05 18:38     ` Mark Rutland
2017-04-05 18:38       ` Mark Rutland
2017-04-05 18:38       ` Mark Rutland
2017-04-06 10:07       ` Mark Rutland
2017-04-06 10:07         ` Mark Rutland
2017-04-06 16:47       ` Fu Wei
2017-04-06 16:47         ` Fu Wei
2017-04-06 16:47         ` Fu Wei
     [not found]         ` <CADyBb7sz6ongbyqR0FzBZybJBYwnLvqV+NsX1+W=6tv0_vLt1g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-04-06 17:24           ` Mark Rutland
2017-04-06 17:24             ` Mark Rutland
2017-04-06 17:24             ` Mark Rutland
2017-04-06 17:39             ` Fu Wei
2017-04-06 17:39               ` Fu Wei
2017-04-06 17:39               ` Fu Wei
2017-04-06 17:52               ` Mark Rutland
2017-04-06 17:52                 ` Mark Rutland
2017-04-06 17:52                 ` Mark Rutland
2017-04-06 18:07                 ` Fu Wei
2017-04-06 18:07                   ` Fu Wei
2017-04-06 18:07                   ` Fu Wei
2017-03-31 17:51 ` [PATCH v23 10/11] clocksource: arm_arch_timer: add GTDT support for memory-mapped timer fu.wei
2017-03-31 17:51   ` fu.wei at linaro.org
2017-03-31 17:51 ` [PATCH v23 11/11] acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver fu.wei
2017-03-31 17:51   ` fu.wei at linaro.org
2017-03-31 17:51   ` fu.wei
2017-04-01  2:14 ` [PATCH v23 00/11] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer Xiongfeng Wang
2017-04-01  2:14   ` Xiongfeng Wang
2017-04-01  2:14   ` Xiongfeng Wang
     [not found]   ` <8c017a47-02d5-454d-f42c-a1b5bb29df1b-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2017-04-01  3:49     ` Fu Wei
2017-04-01  3:49       ` Fu Wei
2017-04-01  3:49       ` Fu Wei
2017-04-04 20:39 ` Timur Tabi
2017-04-04 20:39   ` Timur Tabi

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