From: "Zheng, Lv" <lv.zheng@intel.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: "Wysocki, Rafael J" <rafael.j.wysocki@intel.com>,
"Brown, Len" <len.brown@intel.com>, Lv Zheng <zetalog@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>
Subject: RE: [PATCH v2 0/5] ACPI / EC: Add reference counting for requests and cleans up the grace periods support.
Date: Mon, 9 Feb 2015 02:23:37 +0000 [thread overview]
Message-ID: <1AE640813FDE7649BE1B193DEA596E88026D4B94@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <1711204.9KEDEeQMDo@vostro.rjw.lan>
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Hi, Rafael
> From: Rafael J. Wysocki [mailto:rjw@rjwysocki.net]
> Sent: Friday, February 06, 2015 9:27 AM
>
> On Friday, February 06, 2015 08:57:37 AM Lv Zheng wrote:
> > This patchset contains 3 cleanups related to the EC driver:
> > 1. Command flushing (command grace period)
> > This patchset flushes EC commands before suspending/resuming, so that
> > there won't be timeout for the incomplete commands after resuming.
> > 2. Query flushing (query grace period)
> > This patchset flushes EC event queries before suspending/resuming, so
> > that there won't be broken events remained in the firmware queue.
> > 3. Command storming prevention
> > This patchset corrects command storming prevention logic because of
> > the GPE raw handler mode.
> > The request reference count debugging messages can be used to detect broken
> > EC transactions. It should always drop to 1 when the driver is idle during
> > the runtime.
> >
> > Note that after flushing before suspending, EC GPE is still enabled to keep
> > the old behavior.
> >
> > Lv Zheng (5):
> > ACPI/EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag.
> > ACPI/EC: Add command flushing support.
> > ACPI/EC: Refine command storm prevention support.
> > ACPI/EC: Add query flushing support.
> > ACPI/EC: Add GPE reference counting debugging messages.
> >
> > drivers/acpi/ec.c | 295 ++++++++++++++++++++++++++++++++++++++++-------
> > drivers/acpi/internal.h | 1 +
> > 2 files changed, 254 insertions(+), 42 deletions(-)
>
> So this is on top of the EC patches you sent previously, right?
Yes.
The sequence is:
ACPICA 20150204 release: http://www.spinics.net/lists/linux-acpi/msg55623.html
ACPI EC GPE race fixes: http://www.spinics.net/lists/linux-acpi/msg55633.html
And this series.
Thanks and best regards
-Lv
>
>
> --
> I speak only for myself.
> Rafael J. Wysocki, Intel Open Source Technology Center.
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next prev parent reply other threads:[~2015-02-09 2:23 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-03 5:16 [PATCH 0/6] ACPI/EC: Cleanups of command flushing and event polling Lv Zheng
2014-11-03 5:16 ` [PATCH 1/6] ACPI/EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag Lv Zheng
2014-11-05 2:52 ` Zheng, Lv
2014-11-18 13:23 ` Kirill A. Shutemov
2014-11-18 21:20 ` Rafael J. Wysocki
2014-11-19 8:55 ` Zheng, Lv
2014-11-19 12:16 ` Kirill A. Shutemov
2014-11-20 2:19 ` [RFC PATCH v3 1/2] ACPICA: Events: Remove duplicated sanity check in acpi_ev_enable_gpe() Lv Zheng
2014-11-20 2:19 ` [RFC PATCH v3 2/2] ACPICA: Events: Introduce ACPI_GPE_HANDLER_RAW to fix 2 issues for the current GPE APIs Lv Zheng
2014-11-20 2:20 ` [PATCH 1/6] ACPI/EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag Zheng, Lv
2014-11-20 21:33 ` Kirill A. Shutemov
2014-11-21 0:42 ` Zheng, Lv
2014-11-21 0:55 ` Zheng, Lv
2014-11-20 2:34 ` Zheng, Lv
2014-11-20 21:34 ` Kirill A. Shutemov
2014-11-20 6:44 ` [RFC PATCH v4] ACPICA/Events: Add support to ensure GPE is disabled by default for handlers Lv Zheng
2014-11-20 6:47 ` Zheng, Lv
2014-11-20 22:15 ` Kirill A. Shutemov
2014-11-21 1:36 ` Zheng, Lv
2015-02-06 0:57 ` [PATCH v2 0/5] ACPI / EC: Add reference counting for requests and cleans up the grace periods support Lv Zheng
2015-02-06 0:57 ` [PATCH v2 1/5] ACPI / EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag Lv Zheng
2015-02-06 0:57 ` [PATCH v2 2/5] ACPI / EC: Add command flushing support Lv Zheng
2015-02-06 0:58 ` [PATCH v2 3/5] ACPI / EC: Refine command storm prevention support Lv Zheng
2015-02-06 0:58 ` [PATCH v2 4/5] ACPI / EC: Add query flushing support Lv Zheng
2015-02-06 0:58 ` [PATCH v2 5/5] ACPI / EC: Add GPE reference counting debugging messages Lv Zheng
2015-02-06 1:26 ` [PATCH v2 0/5] ACPI / EC: Add reference counting for requests and cleans up the grace periods support Rafael J. Wysocki
2015-02-09 2:23 ` Zheng, Lv [this message]
2015-02-12 1:17 ` Rafael J. Wysocki
2015-02-16 6:41 ` Zheng, Lv
2014-11-03 5:16 ` [PATCH 2/6] ACPI/EC: Enhance the checks to apply to QR_EC transactions Lv Zheng
2014-11-03 5:16 ` [PATCH 3/6] ACPI/EC: Add reference counting for query handlers Lv Zheng
2014-11-03 5:16 ` [PATCH 4/6] ACPI/EC: Add command flushing support Lv Zheng
2014-11-03 5:16 ` [PATCH 5/6] ACPI/EC: Cleanup QR_SC command processing by adding a kernel thread to poll EC events Lv Zheng
2014-11-12 1:16 ` Rafael J. Wysocki
2014-11-13 2:31 ` Zheng, Lv
2014-11-13 2:58 ` Rafael J. Wysocki
2014-11-13 2:52 ` Zheng, Lv
2014-11-13 22:37 ` Rafael J. Wysocki
2014-11-14 1:21 ` Zheng, Lv
2014-11-14 23:38 ` Rafael J. Wysocki
2014-11-03 5:16 ` [PATCH 6/6] ACPI/EC: Add GPE reference counting debugging messages Lv Zheng
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