From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Vikas Sajjan <vikas.cha.sajjan@hpe.com>, Sunil <sunil.vl@hpe.com>,
Prashanth Prakash <pprakash@codeaurora.org>,
Ashwin Chaugule <ashwin.chaugule@linaro.org>,
Al Stone <al.stone@linaro.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
"the arch/x86 maintainers" <x86@kernel.org>,
"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>
Subject: Re: [PATCH v5 1/5] ACPI / processor_idle: introduce ACPI_PROCESSOR_CSTATE
Date: Wed, 11 May 2016 18:23:00 +0200 [thread overview]
Message-ID: <CAJZ5v0jQJFra6BgvNTO_jvvD-S36iDHu0B6qNkRiUzv_UhOyTQ@mail.gmail.com> (raw)
In-Reply-To: <1462981062-24909-2-git-send-email-sudeep.holla@arm.com>
On Wed, May 11, 2016 at 5:37 PM, Sudeep Holla <sudeep.holla@arm.com> wrote:
> ACPI 6.0 adds a new method to specify the CPU idle states(C-states)
> called Low Power Idle(LPI) states. Since new architectures like ARM64
> use only LPIs, introduce ACPI_PROCESSOR_CSTATE to encapsulate all the
> code supporting the old style C-states(_CST).
>
> This patch will help to extend the processor_idle module to support
> LPI.
>
> Cc: x86@kernel.org
> Cc: linux-ia64@vger.kernel.org
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
> ---
> arch/ia64/Kconfig | 1 +
> arch/x86/Kconfig | 1 +
> drivers/acpi/Kconfig | 4 +++
> drivers/acpi/processor_idle.c | 80 ++++++++++++++++++++++++++++---------------
> include/acpi/processor.h | 2 +-
> 5 files changed, 60 insertions(+), 28 deletions(-)
>
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index b534ebab36ea..e820670d7243 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -15,6 +15,7 @@ config IA64
> select ARCH_MIGHT_HAVE_PC_SERIO
> select PCI if (!IA64_HP_SIM)
> select ACPI if (!IA64_HP_SIM)
> + select ACPI_PROCESSOR_CSTATE if ACPI
You don't need this ->
> select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
> select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
> select HAVE_UNSTABLE_SCHED_CLOCK
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 2dc18605831f..cb3e14757c9c 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -18,6 +18,7 @@ config X86_64
> config X86
> def_bool y
> select ACPI_LEGACY_TABLES_LOOKUP if ACPI
> + select ACPI_PROCESSOR_CSTATE if ACPI
> select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
> select ANON_INODES
> select ARCH_CLOCKSOURCE_DATA
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index b7e2e776397d..093bfcc4f9c3 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -213,6 +213,10 @@ config ACPI_CPU_FREQ_PSS
> bool
> select THERMAL
>
> +config ACPI_PROCESSOR_CSTATE
> + bool
-> if you do "def_bool y" here.
> + depends on IA64 || X86
> +
> config ACPI_PROCESSOR_IDLE
> bool
> select CPU_IDLE
WARNING: multiple messages have this Message-ID (diff)
From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Vikas Sajjan <vikas.cha.sajjan@hpe.com>, Sunil <sunil.vl@hpe.com>,
Prashanth Prakash <pprakash@codeaurora.org>,
Ashwin Chaugule <ashwin.chaugule@linaro.org>,
Al Stone <al.stone@linaro.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
the arch/x86 maintainers <x86@kernel.org>,
"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>
Subject: Re: [PATCH v5 1/5] ACPI / processor_idle: introduce ACPI_PROCESSOR_CSTATE
Date: Wed, 11 May 2016 16:23:00 +0000 [thread overview]
Message-ID: <CAJZ5v0jQJFra6BgvNTO_jvvD-S36iDHu0B6qNkRiUzv_UhOyTQ@mail.gmail.com> (raw)
In-Reply-To: <1462981062-24909-2-git-send-email-sudeep.holla@arm.com>
On Wed, May 11, 2016 at 5:37 PM, Sudeep Holla <sudeep.holla@arm.com> wrote:
> ACPI 6.0 adds a new method to specify the CPU idle states(C-states)
> called Low Power Idle(LPI) states. Since new architectures like ARM64
> use only LPIs, introduce ACPI_PROCESSOR_CSTATE to encapsulate all the
> code supporting the old style C-states(_CST).
>
> This patch will help to extend the processor_idle module to support
> LPI.
>
> Cc: x86@kernel.org
> Cc: linux-ia64@vger.kernel.org
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
> ---
> arch/ia64/Kconfig | 1 +
> arch/x86/Kconfig | 1 +
> drivers/acpi/Kconfig | 4 +++
> drivers/acpi/processor_idle.c | 80 ++++++++++++++++++++++++++++---------------
> include/acpi/processor.h | 2 +-
> 5 files changed, 60 insertions(+), 28 deletions(-)
>
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index b534ebab36ea..e820670d7243 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -15,6 +15,7 @@ config IA64
> select ARCH_MIGHT_HAVE_PC_SERIO
> select PCI if (!IA64_HP_SIM)
> select ACPI if (!IA64_HP_SIM)
> + select ACPI_PROCESSOR_CSTATE if ACPI
You don't need this ->
> select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
> select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
> select HAVE_UNSTABLE_SCHED_CLOCK
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 2dc18605831f..cb3e14757c9c 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -18,6 +18,7 @@ config X86_64
> config X86
> def_bool y
> select ACPI_LEGACY_TABLES_LOOKUP if ACPI
> + select ACPI_PROCESSOR_CSTATE if ACPI
> select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
> select ANON_INODES
> select ARCH_CLOCKSOURCE_DATA
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index b7e2e776397d..093bfcc4f9c3 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -213,6 +213,10 @@ config ACPI_CPU_FREQ_PSS
> bool
> select THERMAL
>
> +config ACPI_PROCESSOR_CSTATE
> + bool
-> if you do "def_bool y" here.
> + depends on IA64 || X86
> +
> config ACPI_PROCESSOR_IDLE
> bool
> select CPU_IDLE
next prev parent reply other threads:[~2016-05-11 16:23 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-11 15:37 [PATCH v5 0/5] ACPI / processor_idle: Add ACPI v6.0 LPI support Sudeep Holla
2016-05-11 15:37 ` [PATCH v5 1/5] ACPI / processor_idle: introduce ACPI_PROCESSOR_CSTATE Sudeep Holla
2016-05-11 15:37 ` Sudeep Holla
2016-05-11 16:23 ` Rafael J. Wysocki [this message]
2016-05-11 16:23 ` Rafael J. Wysocki
2016-05-11 16:57 ` Sudeep Holla
2016-05-11 16:57 ` Sudeep Holla
[not found] ` <CAJvTdKnJPZ9Nfib=CqBczMP4BERqfqAzeSR-+jjFOGZR51oVmg@mail.gmail.com>
2016-05-11 18:28 ` Len Brown
2016-05-11 18:28 ` Len Brown
2016-05-12 9:10 ` Sudeep Holla
2016-05-12 9:10 ` Sudeep Holla
2016-05-12 13:21 ` [UPDATE][PATCH v5] " Sudeep Holla
2016-05-11 15:37 ` [PATCH v5 2/5] ACPI / processor_idle: Add support for Low Power Idle(LPI) states Sudeep Holla
2016-05-17 17:46 ` Prakash, Prashanth
2016-05-18 17:37 ` Sudeep Holla
2016-05-18 19:13 ` Prakash, Prashanth
2016-05-19 13:26 ` Sudeep Holla
2016-06-10 17:38 ` Sudeep Holla
2016-06-13 21:05 ` Rafael J. Wysocki
2016-06-14 14:24 ` Sudeep Holla
2016-05-11 15:37 ` [PATCH v5 3/5] arm64: cpuidle: drop __init section marker to arm_cpuidle_init Sudeep Holla
2016-05-11 15:37 ` Sudeep Holla
2016-05-11 15:37 ` [PATCH v5 4/5] arm64: add support for ACPI Low Power Idle(LPI) Sudeep Holla
2016-05-11 15:37 ` Sudeep Holla
2016-06-10 12:50 ` Lorenzo Pieralisi
2016-06-10 12:50 ` Lorenzo Pieralisi
2016-06-13 16:27 ` Daniel Lezcano
2016-06-13 16:27 ` Daniel Lezcano
2016-06-13 4:47 ` Sajjan, Vikas C
2016-06-13 4:47 ` Sajjan, Vikas C
2016-06-13 9:40 ` Sudeep Holla
2016-06-13 9:40 ` Sudeep Holla
2016-05-11 15:37 ` [PATCH v5 5/5] ACPI : enable ACPI_PROCESSOR_IDLE on ARM64 Sudeep Holla
2016-05-11 15:37 ` Sudeep Holla
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