From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: [PATCH 2.6.32.stable] ACPI: Advertise to BIOS in _OSC: _OST on _PPC changes Date: Sat, 23 Jan 2010 14:51:04 -0500 (EST) Message-ID: Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-path: Received: from vms173001pub.verizon.net ([206.46.173.1]:59588 "EHLO vms173001pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751255Ab0AWTvV (ORCPT ); Sat, 23 Jan 2010 14:51:21 -0500 Received: from localhost.localdomain ([unknown] [74.104.151.18]) by vms173001.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0KWP00LARTT5W0E3@vms173001.mailsrvcs.net> for linux-acpi@vger.kernel.org; Sat, 23 Jan 2010 13:51:20 -0600 (CST) Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: stable@kernel.org Cc: linux-acpi@vger.kernel.org, Zhao Yakui From: Zhao Yakui upstream 6a4e2b7503d1f630bface040cf0f5a7aac1fabdb If the BIOS pokes the system-wide OSC bits to see if Linux supports evaluating _OST after a _PPC change notification, answer yes. Also, fix an oversight where we neglected to set the OSC bit advertising processor aggregator device support when acpi-pad is compiled as a module. Signed-off-by: Zhao Yakui Signed-off-by: Len Brown --- drivers/acpi/bus.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index cf761b9..a52126e 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -490,9 +490,14 @@ static void acpi_bus_osc_support(void) capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE; capbuf[OSC_SUPPORT_TYPE] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */ -#ifdef CONFIG_ACPI_PROCESSOR_AGGREGATOR +#if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\ + defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE) capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PAD_SUPPORT; #endif + +#if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE) + capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PPC_OST_SUPPORT; +#endif if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return; if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) -- 1.6.6.1.383.g5a9f