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From: Lv Zheng <lv.zheng@intel.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	Len Brown <len.brown@intel.com>
Cc: Lv Zheng <lv.zheng@intel.com>, Lv Zheng <zetalog@gmail.com>,
	linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org
Subject: [PATCH v2 0/5] ACPI / EC: Add reference counting for requests and cleans up the grace periods support.
Date: Fri,  6 Feb 2015 08:57:37 +0800	[thread overview]
Message-ID: <cover.1423183647.git.lv.zheng@intel.com> (raw)
In-Reply-To: <20141119121615.GA2514@node.dhcp.inet.fi>

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(-)

-- 
1.7.10


WARNING: multiple messages have this Message-ID (diff)
From: Lv Zheng <lv.zheng@intel.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	Len Brown <len.brown@intel.com>
Cc: Lv Zheng <lv.zheng@intel.com>, Lv Zheng <zetalog@gmail.com>,
	<linux-kernel@vger.kernel.org>,
	linux-acpi@vger.kernel.org
Subject: [PATCH v2 0/5] ACPI / EC: Add reference counting for requests and cleans up the grace periods support.
Date: Fri,  6 Feb 2015 08:57:37 +0800	[thread overview]
Message-ID: <cover.1423183647.git.lv.zheng@intel.com> (raw)
In-Reply-To: <20141119121615.GA2514@node.dhcp.inet.fi>

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(-)

-- 
1.7.10


  parent reply	other threads:[~2015-02-06  0:57 UTC|newest]

Thread overview: 65+ 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 ` Lv Zheng
2014-11-03  5:16 ` [PATCH 1/6] ACPI/EC: Introduce STARTED/STOPPED flags to replace BLOCKED flag Lv Zheng
2014-11-03  5:16   ` Lv Zheng
2014-11-05  2:52   ` Zheng, Lv
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  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             ` 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  2:19             ` 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  6:44             ` 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           ` Lv Zheng [this message]
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               ` Lv Zheng
2015-02-06  0:57             ` [PATCH v2 2/5] ACPI / EC: Add command flushing support Lv Zheng
2015-02-06  0:57               ` 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               ` Lv Zheng
2015-02-06  0:58             ` [PATCH v2 4/5] ACPI / EC: Add query flushing support Lv Zheng
2015-02-06  0:58               ` Lv Zheng
2015-02-06  0:58             ` [PATCH v2 5/5] ACPI / EC: Add GPE reference counting debugging messages Lv Zheng
2015-02-06  0:58               ` 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
2015-02-09  2:23                 ` Zheng, Lv
2015-02-12  1:17                 ` Rafael J. Wysocki
2015-02-16  6:41                   ` Zheng, Lv
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   ` 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   ` Lv Zheng
2014-11-03  5:16 ` [PATCH 4/6] ACPI/EC: Add command flushing support Lv Zheng
2014-11-03  5:16   ` 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
2014-11-03  5:16   ` Lv Zheng
2014-11-12  1:16   ` Rafael J. Wysocki
2014-11-12  1:16     ` Rafael J. Wysocki
2014-11-13  2:31     ` Zheng, Lv
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  2:52           ` Zheng, Lv
2014-11-13 22:37           ` Rafael J. Wysocki
2014-11-14  1:21             ` Zheng, Lv
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
2014-11-03  5:16   ` Lv Zheng

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