Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932502Ab2EXC2g (ORCPT ); Wed, 23 May 2012 22:28:36 -0400 Received: from g5t0007.atlanta.hp.com ([15.192.0.44]:28296 "EHLO g5t0007.atlanta.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756128Ab2EXC2e (ORCPT ); Wed, 23 May 2012 22:28:34 -0400 From: Toshi Kani To: lenb@kernel.org, linux-acpi@vger.kernel.org Cc: bhelgaas@google.com, shuahkhan@gmail.com, liuj97@gmail.com, andi@firstfloor.org, linux-kernel@vger.kernel.org, Toshi Kani Subject: [PATCH v4 0/6] ACPI: Add _OST support for ACPI hotplug Date: Wed, 23 May 2012 20:25:18 -0600 Message-Id: <1337826324-16802-1-git-send-email-toshi.kani@hp.com> X-Mailer: git-send-email 1.7.7.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2556 Lines: 61 This patchset supports ACPI OSPM Status Indication (_OST) method for ACPI CPU/memory/container hotplug operations and sysfs eject. After an ACPI hotplug operation has completed, OSPM calls _OST to indicate the result of the operation to the platform. If a platform does not support _OST, this patchset has no effect on the platform. This _OST support is enabled when all relevant ACPI hotplug operations, such as CPU, memory and container hotplug, are enabled. This assures consistent behavior among the hotplug operations with regarding the _OST support. Some platforms may require the OS to support _OST in order to support ACPI hotplug operations. For example, if a platform has the management console where user can request a hotplug operation from, this _OST support would be required for the management console to show the result of the hotplug request to user. The _OST definition can be found in section 6.3.5 of ACPI 5.0 spec. The HPPF spec below also describes hotplug flows with _OST. DIG64 Hot-Plug & Partitioning Flow (HPPF) Specification R1.0 http://www.dig64.org/home/DIG64_HPPF_R1_0.pdf The changes have been tested with simulated _OST methods. v4: - Removed CONFIG_ACPI_HOTPLUG_OST option. v3: - Added more descriptions to the change logs. v2: - Added CONFIG_ACPI_HOTPLUG_OST option. - Added _OST support for container hotplug and sysfs eject. - Reordered patchset to enable _OST support bit of _OSC in the last patch. --- Toshi Kani (6): ACPI: Add an interface to evaluate _OST ACPI: Add _OST support for sysfs eject ACPI: Add _OST support for ACPI CPU hotplug ACPI: Add _OST support for ACPI memory hotplug ACPI: Add _OST support for ACPI container hotplug ACPI: Set hotplug _OST support bit to _OSC drivers/acpi/acpi_memhotplug.c | 43 +++++++++++++++++++++------- drivers/acpi/bus.c | 4 +++ drivers/acpi/container.c | 43 +++++++++++++++++++---------- drivers/acpi/processor_driver.c | 28 +++++++++++++----- drivers/acpi/scan.c | 58 +++++++++++++++++++++++++++++++++------ drivers/acpi/utils.c | 42 ++++++++++++++++++++++++++++ include/acpi/acpi_bus.h | 12 +++++++- include/linux/acpi.h | 40 ++++++++++++++++++++++++++- 8 files changed, 225 insertions(+), 45 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/