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
next prev 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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