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sn_feature_sets.h
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1 #ifndef _ASM_IA64_SN_FEATURE_SETS_H
2 #define _ASM_IA64_SN_FEATURE_SETS_H
3 
4 /*
5  * SN PROM Features
6  *
7  * This file is subject to the terms and conditions of the GNU General Public
8  * License. See the file "COPYING" in the main directory of this archive
9  * for more details.
10  *
11  * Copyright (c) 2005-2006 Silicon Graphics, Inc. All rights reserved.
12  */
13 
14 
15 /* --------------------- PROM Features -----------------------------*/
16 extern int sn_prom_feature_available(int id);
17 
18 #define MAX_PROM_FEATURE_SETS 2
19 
20 /*
21  * The following defines features that may or may not be supported by the
22  * current PROM. The OS uses sn_prom_feature_available(feature) to test for
23  * the presence of a PROM feature. Down rev (old) PROMs will always test
24  * "false" for new features.
25  *
26  * Use:
27  * if (sn_prom_feature_available(PRF_XXX))
28  * ...
29  */
30 
31 #define PRF_PAL_CACHE_FLUSH_SAFE 0
32 #define PRF_DEVICE_FLUSH_LIST 1
33 #define PRF_HOTPLUG_SUPPORT 2
34 #define PRF_CPU_DISABLE_SUPPORT 3
35 
36 /* --------------------- OS Features -------------------------------*/
37 
38 /*
39  * The following defines OS features that are optionally present in
40  * the operating system.
41  * During boot, PROM is notified of these features via a series of calls:
42  *
43  * ia64_sn_set_os_feature(feature1);
44  *
45  * Once enabled, a feature cannot be disabled.
46  *
47  * By default, features are disabled unless explicitly enabled.
48  *
49  * These defines must be kept in sync with the corresponding
50  * PROM definitions in feature_sets.h.
51  */
52 #define OSF_MCA_SLV_TO_OS_INIT_SLV 0
53 #define OSF_FEAT_LOG_SBES 1
54 #define OSF_ACPI_ENABLE 2
55 #define OSF_PCISEGMENT_ENABLE 3
56 
57 
58 #endif /* _ASM_IA64_SN_FEATURE_SETS_H */