forked from Minki/linux
6e9de18120
Add additional support for CPU disable on SN platforms. Correctly setup the smp_affinity mask for I/O error IRQs. Restrict the use of the feature to Altix 4000 and 450 systems running with a CPU disable capable PROM, and do not allow disabling of CPU 0. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
#ifndef _ASM_IA64_SN_FEATURE_SETS_H
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#define _ASM_IA64_SN_FEATURE_SETS_H
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/*
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* SN PROM Features
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (c) 2005-2006 Silicon Graphics, Inc. All rights reserved.
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*/
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/* --------------------- PROM Features -----------------------------*/
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extern int sn_prom_feature_available(int id);
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#define MAX_PROM_FEATURE_SETS 2
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/*
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* The following defines features that may or may not be supported by the
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* current PROM. The OS uses sn_prom_feature_available(feature) to test for
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* the presence of a PROM feature. Down rev (old) PROMs will always test
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* "false" for new features.
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*
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* Use:
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* if (sn_prom_feature_available(PRF_XXX))
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* ...
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*/
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#define PRF_PAL_CACHE_FLUSH_SAFE 0
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#define PRF_DEVICE_FLUSH_LIST 1
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#define PRF_HOTPLUG_SUPPORT 2
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#define PRF_CPU_DISABLE_SUPPORT 3
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/* --------------------- OS Features -------------------------------*/
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/*
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* The following defines OS features that are optionally present in
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* the operating system.
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* During boot, PROM is notified of these features via a series of calls:
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*
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* ia64_sn_set_os_feature(feature1);
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*
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* Once enabled, a feature cannot be disabled.
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*
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* By default, features are disabled unless explicitly enabled.
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*
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* These defines must be kept in sync with the corresponding
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* PROM definitions in feature_sets.h.
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*/
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#define OSF_MCA_SLV_TO_OS_INIT_SLV 0
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#define OSF_FEAT_LOG_SBES 1
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#define OSF_ACPI_ENABLE 2
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#define OSF_PCISEGMENT_ENABLE 3
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#endif /* _ASM_IA64_SN_FEATURE_SETS_H */
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