From: Huang Ying <ying.huang@intel.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Linux PM list <linux-pm@vger.kernel.org>,
ACPI Devel Mailing List <linux-acpi@vger.kernel.org>,
Alan Stern <stern@rowland.harvard.edu>,
Sarah Sharp <sarah.a.sharp@linux.intel.com>,
Lan Tianyu <tianyu.lan@intel.com>, Aaron Lu <aaron.lu@intel.com>,
Jean Pihet <j-pihet@ti.com>,
linux-pci@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
mark gross <markgross@thegnar.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 7/7] PM / ACPI: Take device PM QoS flags into account
Date: Tue, 09 Oct 2012 10:46:39 +0800 [thread overview]
Message-ID: <1349750799.5332.1.camel@yhuang-dev> (raw)
In-Reply-To: <3734460.X8hLyTaasd@vostro.rjw.lan>
On Mon, 2012-10-08 at 10:09 +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> Make ACPI power management routines and PCI power management
> routines depending on ACPI take device PM QoS flags into account
> when deciding what power state to put the device into.
>
> In particular, after this change acpi_pm_device_sleep_state() will
> not return ACPI_STATE_D3_COLD as the deepest available low-power
> state if PM_QOS_FLAG_NO_POWER_OFF is requested for the device and it
> will not require remote wakeup to work for the device in the returned
> low-power state if there is at least one PM QoS flags request for the
> device, but PM_QOS_FLAG_REMOTE_WAKEUP is not requested for it.
>
> Accordingly, acpi_pci_set_power_state() will refuse to put the
> device into D3cold if PM_QOS_FLAG_NO_POWER_OFF is requested for it.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Reviewed-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Best Regards,
Huang Ying
next prev parent reply other threads:[~2012-10-09 2:46 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-28 21:51 [RFD][PATCH 0/7] PM / QoS: Support for PM QoS device flags Rafael J. Wysocki
2012-09-28 21:52 ` [RFD][PATCH 1/7] PM / QoS: Prepare device structure for adding more constraint types Rafael J. Wysocki
2012-09-28 21:52 ` [RFD][PATCH 2/7] PM / QoS: Introduce request and constraint data types for PM QoS flags Rafael J. Wysocki
2012-09-29 6:02 ` Lan Tianyu
2012-09-29 21:36 ` Rafael J. Wysocki
2012-09-28 21:53 ` [RFD][PATCH 3/7] PM / QoS: Prepare struct dev_pm_qos_request for more request types Rafael J. Wysocki
2012-09-28 21:54 ` [RFD][PATCH 4/7] PM / QoS: Introduce device PM QoS flags support Rafael J. Wysocki
2012-09-28 21:55 ` [RFD][PATCH 5/7] PM / QoS: Make it possible to expose PM QoS device flags to user space Rafael J. Wysocki
2012-10-30 8:53 ` Aaron Lu
2012-10-30 15:29 ` Rafael J. Wysocki
2012-09-28 21:56 ` [RFD][PATCH 6/7] PM / Domains: Check device PM QoS flags in pm_genpd_poweroff() Rafael J. Wysocki
2012-09-28 21:56 ` [RFD][PATCH 7/7] PM / ACPI: Take device PM QoS flags into account Rafael J. Wysocki
2012-09-29 3:16 ` Huang Ying
2012-09-29 21:39 ` Rafael J. Wysocki
2012-11-12 21:07 ` Bjorn Helgaas
2012-11-12 23:42 ` Rafael J. Wysocki
2012-10-01 16:17 ` [RFD][PATCH 0/7] PM / QoS: Support for PM QoS device flags Pihet-XID, Jean
2012-10-02 2:17 ` Rafael J. Wysocki
2012-10-08 8:02 ` [PATCH " Rafael J. Wysocki
2012-10-08 8:04 ` [PATCH 1/7] PM / QoS: Prepare device structure for adding more constraint types Rafael J. Wysocki
2012-10-10 3:15 ` mark gross
2012-10-10 23:12 ` Rafael J. Wysocki
2012-10-08 8:05 ` [PATCH 2/7] PM / QoS: Introduce request and constraint data types for PM QoS flags Rafael J. Wysocki
2012-10-10 3:21 ` mark gross
2012-10-08 8:06 ` [PATCH 3/7] PM / QoS: Prepare struct dev_pm_qos_request for more request types Rafael J. Wysocki
2012-10-10 3:37 ` mark gross
2012-10-08 8:07 ` [PATCH 4/7] PM / QoS: Introduce PM QoS device flags support Rafael J. Wysocki
2012-10-10 3:37 ` mark gross
2012-10-08 8:07 ` [PATCH 5/7] PM / QoS: Make it possible to expose PM QoS device flags to user space Rafael J. Wysocki
2012-10-10 3:33 ` mark gross
2012-10-08 8:08 ` [PATCH 6/7] PM / Domains: Check device PM QoS flags in pm_genpd_poweroff() Rafael J. Wysocki
2012-10-10 3:35 ` mark gross
2012-10-08 8:09 ` [PATCH 7/7] PM / ACPI: Take device PM QoS flags into account Rafael J. Wysocki
2012-10-09 2:46 ` Huang Ying [this message]
2012-10-10 3:36 ` mark gross
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