From: Catalin Marinas <catalin.marinas@arm.com>
To: Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>
Cc: Mark Rutland <Mark.Rutland@arm.com>,
Tomasz Figa <t.figa@samsung.com>,
Lina Iyer <lina.iyer@linaro.org>,
Chander Kashyap <k.chander@samsung.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Nicolas Pitre <nico@linaro.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"grant.likely@linaro.org" <grant.likely@linaro.org>,
Charles Garcia-Tobin <Charles.Garcia-Tobin@arm.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
Kevin Hilman <khilman@linaro.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
Sebastian Capella <sebcape@gmail.com>,
Mark Brown <broonie@kernel.org>, Antti Miettinen <ananaza@iki.fi>,
Paul Walmsley <paul@pwsan.com>,
Geoff Levand <geoff@infradead.org>,
Peter De Schrijver <pdeschrijver@nvidia.com>,
Stephen Boyd <sboyd@codeaurora.org>, Amit Kucheria <amit.ku>
Subject: Re: [PATCH v7 5/8] arm64: add PSCI CPU_SUSPEND based cpu_suspend support
Date: Mon, 18 Aug 2014 15:21:13 +0100 [thread overview]
Message-ID: <20140818142113.GF20043@localhost> (raw)
In-Reply-To: <1407945127-27554-6-git-send-email-lorenzo.pieralisi@arm.com>
On Wed, Aug 13, 2014 at 04:52:04PM +0100, Lorenzo Pieralisi wrote:
> This patch implements the cpu_suspend cpu operations method through
> the PSCI CPU SUSPEND API. The PSCI implementation translates the idle state
> index passed by the cpu_suspend core call into a valid PSCI state according to
> the PSCI states initialized at boot through the cpu_init_idle() CPU
> operations hook.
>
> The PSCI CPU suspend operation hook checks if the PSCI state is a
> standby state. If it is, it calls the PSCI suspend implementation
> straight away, without saving any context. If the state is a power
> down state the kernel calls the __cpu_suspend API (that saves the CPU
> context) and passed the PSCI suspend finisher as a parameter so that PSCI
> can be called by the __cpu_suspend implementation after saving and flushing
> the context as last function before power down.
>
> For power down states, entry point is set to cpu_resume physical address,
> that represents the default kernel execution address following a CPU reset.
>
> Reviewed-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> ---
> arch/arm64/kernel/psci.c | 100 +++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 100 insertions(+)
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
WARNING: multiple messages have this Message-ID (diff)
From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 5/8] arm64: add PSCI CPU_SUSPEND based cpu_suspend support
Date: Mon, 18 Aug 2014 15:21:13 +0100 [thread overview]
Message-ID: <20140818142113.GF20043@localhost> (raw)
In-Reply-To: <1407945127-27554-6-git-send-email-lorenzo.pieralisi@arm.com>
On Wed, Aug 13, 2014 at 04:52:04PM +0100, Lorenzo Pieralisi wrote:
> This patch implements the cpu_suspend cpu operations method through
> the PSCI CPU SUSPEND API. The PSCI implementation translates the idle state
> index passed by the cpu_suspend core call into a valid PSCI state according to
> the PSCI states initialized at boot through the cpu_init_idle() CPU
> operations hook.
>
> The PSCI CPU suspend operation hook checks if the PSCI state is a
> standby state. If it is, it calls the PSCI suspend implementation
> straight away, without saving any context. If the state is a power
> down state the kernel calls the __cpu_suspend API (that saves the CPU
> context) and passed the PSCI suspend finisher as a parameter so that PSCI
> can be called by the __cpu_suspend implementation after saving and flushing
> the context as last function before power down.
>
> For power down states, entry point is set to cpu_resume physical address,
> that represents the default kernel execution address following a CPU reset.
>
> Reviewed-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
> ---
> arch/arm64/kernel/psci.c | 100 +++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 100 insertions(+)
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
next prev parent reply other threads:[~2014-08-18 14:21 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-13 15:51 [PATCH v7 0/8] ARM generic idle states Lorenzo Pieralisi
2014-08-13 15:51 ` Lorenzo Pieralisi
2014-08-13 15:52 ` [PATCH v7 1/8] arm64: kernel: refactor the CPU suspend API for retention states Lorenzo Pieralisi
2014-08-13 15:52 ` Lorenzo Pieralisi
2014-08-18 7:47 ` Hanjun Guo
2014-08-18 7:47 ` Hanjun Guo
2014-08-18 14:20 ` Catalin Marinas
2014-08-18 14:20 ` Catalin Marinas
2014-08-13 15:52 ` [PATCH v7 2/8] Documentation: arm: define DT idle states bindings Lorenzo Pieralisi
2014-08-13 15:52 ` Lorenzo Pieralisi
[not found] ` <1407945127-27554-3-git-send-email-lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>
2014-08-13 19:25 ` Lina Iyer
2014-08-13 19:25 ` Lina Iyer
2014-08-13 22:11 ` Lorenzo Pieralisi
2014-08-13 22:11 ` Lorenzo Pieralisi
2014-08-15 17:20 ` Lina Iyer
2014-08-15 17:20 ` Lina Iyer
2014-08-15 17:51 ` Lorenzo Pieralisi
2014-08-15 17:51 ` Lorenzo Pieralisi
2014-08-18 14:20 ` Catalin Marinas
2014-08-18 14:20 ` Catalin Marinas
2014-08-13 15:52 ` [PATCH v7 3/8] drivers: cpuidle: implement DT based idle states infrastructure Lorenzo Pieralisi
2014-08-13 15:52 ` Lorenzo Pieralisi
2014-08-13 16:31 ` Nicolas Pitre
2014-08-13 16:31 ` Nicolas Pitre
2014-08-13 17:04 ` Lorenzo Pieralisi
2014-08-13 17:04 ` Lorenzo Pieralisi
2014-08-13 17:29 ` Nicolas Pitre
2014-08-13 17:29 ` Nicolas Pitre
2014-08-14 11:29 ` Lorenzo Pieralisi
2014-08-14 11:29 ` Lorenzo Pieralisi
2014-08-14 15:47 ` Nicolas Pitre
2014-08-14 15:47 ` Nicolas Pitre
2014-08-14 16:02 ` Lorenzo Pieralisi
2014-08-14 16:02 ` Lorenzo Pieralisi
2014-08-18 14:21 ` Catalin Marinas
2014-08-18 14:21 ` Catalin Marinas
2014-08-13 15:52 ` [PATCH v7 4/8] arm64: kernel: introduce cpu_init_idle CPU operation Lorenzo Pieralisi
2014-08-13 15:52 ` Lorenzo Pieralisi
2014-08-18 14:21 ` Catalin Marinas
2014-08-18 14:21 ` Catalin Marinas
[not found] ` <1407945127-27554-1-git-send-email-lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org>
2014-08-13 15:52 ` [PATCH v7 5/8] arm64: add PSCI CPU_SUSPEND based cpu_suspend support Lorenzo Pieralisi
2014-08-13 15:52 ` Lorenzo Pieralisi
2014-08-18 14:21 ` Catalin Marinas [this message]
2014-08-18 14:21 ` Catalin Marinas
2014-08-13 15:52 ` [PATCH v7 6/8] drivers: cpuidle: CPU idle ARM64 driver Lorenzo Pieralisi
2014-08-13 15:52 ` Lorenzo Pieralisi
2014-08-18 14:21 ` Catalin Marinas
2014-08-18 14:21 ` Catalin Marinas
2014-08-18 22:30 ` Lorenzo Pieralisi
2014-08-18 22:30 ` Lorenzo Pieralisi
2014-08-18 14:21 ` Catalin Marinas
2014-08-18 14:21 ` Catalin Marinas
2014-08-18 22:25 ` Lorenzo Pieralisi
2014-08-18 22:25 ` Lorenzo Pieralisi
2014-08-13 15:52 ` [PATCH v7 7/8] drivers: cpuidle: initialize big.LITTLE driver through DT Lorenzo Pieralisi
2014-08-13 15:52 ` Lorenzo Pieralisi
2014-08-18 14:21 ` Catalin Marinas
2014-08-18 14:21 ` Catalin Marinas
2014-08-13 15:52 ` [PATCH v7 8/8] drivers: cpuidle: initialize Exynos " Lorenzo Pieralisi
2014-08-13 15:52 ` Lorenzo Pieralisi
2014-08-15 21:12 ` Lina Iyer
2014-08-15 21:12 ` Lina Iyer
2014-08-15 21:40 ` Lorenzo Pieralisi
2014-08-15 21:40 ` Lorenzo Pieralisi
2014-08-15 21:45 ` Lina Iyer
2014-08-15 21:45 ` Lina Iyer
2014-08-15 21:52 ` Lorenzo Pieralisi
2014-08-15 21:52 ` Lorenzo Pieralisi
2014-08-18 14:22 ` Catalin Marinas
2014-08-18 14:22 ` Catalin Marinas
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