From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"Kristen C. Accardi" <kristen.c.accardi@intel.com>,
Len Brown <lenb@kernel.org>
Subject: [RFC][PATCH 0/3] ACPI / PM: Export power resources information to user space
Date: Sun, 20 Jan 2013 15:51:40 +0100 [thread overview]
Message-ID: <3307415.pdOY6ovZLa@vostro.rjw.lan> (raw)
Hi Greg,
The following patch series is about exporting ACPI power resources to user
space that will be necessary for PM diagnostics on new platforms (powertop is
the target). Still, existing systems can also benefit from that, like my
oldish HP nx6325 on which the patches have been tested.
Patch [1/3] shouldn't be really controverisal, as it only makes it possible
to read power resources' reference counters from user space in a quite
straightforward way.
Patch [3/3], however, exposes lists of power resources associated with
different power states of devices using ACPI PM as sysfs subdirectories
containing symbolic links and that requires some sysfs changes made by
patch [2/3].
Admittedly, my sysfs skills are limited so please let me know if those
changes make sense and are acceptable from your perspective. If not, then
please kindly advise what I can do instead of them.
The patches apply on top of the current linux-next branch of the linux-pm.git
tree.
Thanks,
Rafael
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
next reply other threads:[~2013-01-20 14:51 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-20 14:51 Rafael J. Wysocki [this message]
2013-01-20 14:53 ` [RFC][PATCH 1/3] ACPI / PM: Expose reference count values of ACPI power resources Rafael J. Wysocki
2013-01-20 14:54 ` [RFC][PATCH 2/3] sysfs: Functions for adding/removing symlinks to/from attribute groups Rafael J. Wysocki
2013-01-20 14:57 ` [RFC][PATCH 3/3] ACPI / PM: Expose lists of device power resources to user space Rafael J. Wysocki
2013-01-20 23:37 ` [RFC][PATCH 0/3] ACPI / PM: Export power resources information " Greg Kroah-Hartman
2013-01-21 0:11 ` Rafael J. Wysocki
2013-01-21 0:48 ` [RFC][Update][PATCH " Rafael J. Wysocki
2013-01-21 0:50 ` [RFC][Update][PATCH 1/3] ACPI / PM: Expose reference count values of ACPI power resources Rafael J. Wysocki
2013-01-21 0:51 ` [RFC][Update][PATCH 2/3] sysfs: Functions for adding/removing symlinks to/from attribute groups Rafael J. Wysocki
2013-01-21 0:53 ` [RFC][Update][PATCH 3/3] ACPI / PM: Expose lists of device power resources to user space Rafael J. Wysocki
2013-01-21 13:03 ` [RFC][Update 2][PATCH 0/4] ACPI / PM: Export power information " Rafael J. Wysocki
2013-01-21 13:04 ` [RFC][Update 2][PATCH 1/4] ACPI / PM: Export power states of ACPI devices via sysfs Rafael J. Wysocki
2013-01-21 20:53 ` Greg Kroah-Hartman
2013-01-21 22:27 ` Rafael J. Wysocki
2013-01-21 22:26 ` Greg Kroah-Hartman
2013-01-21 22:59 ` Rafael J. Wysocki
2013-01-21 23:08 ` Greg Kroah-Hartman
2013-01-22 0:48 ` Rafael J. Wysocki
2013-01-21 13:05 ` [RFC][Update 2][PATCH 2/4] ACPI / PM: Expose reference count values of ACPI power resources Rafael J. Wysocki
2013-01-21 20:53 ` Greg Kroah-Hartman
2013-01-21 22:35 ` Rafael J. Wysocki
2013-01-21 22:33 ` Greg Kroah-Hartman
2013-01-21 13:06 ` [RFC][Update 2][PATCH 3/4] sysfs: Functions for adding/removing symlinks to/from attribute groups Rafael J. Wysocki
2013-01-21 20:58 ` Greg Kroah-Hartman
2013-01-21 22:41 ` Rafael J. Wysocki
2013-01-21 22:38 ` Greg Kroah-Hartman
2013-01-21 13:08 ` [RFC][Update 2][PATCH 4/4] ACPI / PM: Expose lists of device power resources to user space Rafael J. Wysocki
2013-01-21 20:58 ` Greg Kroah-Hartman
2013-01-21 22:42 ` Rafael J. Wysocki
2013-01-22 2:15 ` [PATCH 0/4] ACPI / PM: Export power information " Rafael J. Wysocki
2013-01-22 2:25 ` [PATCH 1/4] ACPI / PM: Expose power states of ACPI devices " Rafael J. Wysocki
2013-01-22 23:42 ` Greg Kroah-Hartman
2013-01-22 23:47 ` Greg Kroah-Hartman
2013-01-23 0:01 ` Rafael J. Wysocki
2013-01-22 23:58 ` Greg Kroah-Hartman
2013-01-22 2:26 ` [PATCH 2/4] ACPI / PM: Expose current status of ACPI power resources Rafael J. Wysocki
2013-01-22 23:49 ` Greg Kroah-Hartman
2013-01-22 2:27 ` [PATCH 3/4] sysfs: Functions for adding/removing symlinks to/from attribute groups Rafael J. Wysocki
2013-01-22 23:51 ` Greg Kroah-Hartman
2013-01-23 0:03 ` Rafael J. Wysocki
2013-01-22 2:28 ` [PATCH 4/4] ACPI / PM: Expose lists of device power resources to user space Rafael J. Wysocki
2013-01-22 23:56 ` Greg Kroah-Hartman
2013-01-23 0:08 ` Rafael J. Wysocki
2013-01-23 0:17 ` Rafael J. Wysocki
2013-01-23 0:28 ` Rafael J. Wysocki
2013-01-23 1:05 ` Greg Kroah-Hartman
2013-01-23 14:01 ` Rafael J. Wysocki
2013-01-23 1:03 ` Greg Kroah-Hartman
2013-01-23 14:00 ` Rafael J. Wysocki
2013-01-23 17:56 ` [Update][PATCH 0/5] ACPI / PM: Export power information " Rafael J. Wysocki
2013-01-23 17:58 ` [Update][PATCH 1/5] ACPI / scan: Prevent device add uevents from racing with " Rafael J. Wysocki
2013-01-24 0:33 ` Greg Kroah-Hartman
2013-01-23 17:59 ` [Update][PATCH 2/5] ACPI / PM: Expose power states of ACPI devices to " Rafael J. Wysocki
2013-01-23 18:00 ` [Update][PATCH 3/5] ACPI / PM: Expose current status of ACPI power resources Rafael J. Wysocki
2013-01-23 18:00 ` [Update][PATCH 4/5] sysfs: Functions for adding/removing symlinks to/from attribute groups Rafael J. Wysocki
2013-01-24 0:33 ` Greg Kroah-Hartman
2013-01-25 20:13 ` [patch] sysfs: Fix build when sysfs is disabled David Rientjes
2013-01-25 20:42 ` Greg Kroah-Hartman
2013-01-25 20:53 ` Rafael J. Wysocki
2013-01-25 20:52 ` Rafael J. Wysocki
2013-01-25 21:34 ` David Rientjes
2013-01-23 18:01 ` [Update][PATCH 5/5] ACPI / PM: Expose lists of device power resources to user space Rafael J. Wysocki
2013-01-24 0:34 ` Greg Kroah-Hartman
2013-01-24 0:34 ` [Update][PATCH 0/5] ACPI / PM: Export power information " Greg Kroah-Hartman
2013-01-24 12:34 ` Rafael J. Wysocki
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