include/asm-ia64/sn/sn_feature_sets.h

   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 Silicon Graphics, Inc.  All rights reserved.
  12  */
  13
  14
  15 #include <asm/types.h>
  16 #include <asm/bitops.h>
  17
  18 /* --------------------- PROM Features -----------------------------*/
  19 extern int sn_prom_feature_available(int id);
  20
  21 #define MAX_PROM_FEATURE_SETS                   2
  22
  23 /*
  24  * The following defines features that may or may not be supported by the
  25  * current PROM. The OS uses sn_prom_feature_available(feature) to test for
  26  * the presence of a PROM feature. Down rev (old) PROMs will always test
  27  * "false" for new features.
  28  *
  29  * Use:
  30  *              if (sn_prom_feature_available(PRF_FEATURE_XXX))
  31  *                      ...
  32  */
  33
  34 /*
  35  * Example: feature XXX
  36  */
  37 #define PRF_FEATURE_XXX         0
  38
  39
  40
  41 /* --------------------- OS Features -------------------------------*/
  42
  43 /*
  44  * The following defines OS features that are optionally present in
  45  * the operating system.
  46  * During boot, PROM is notified of these features via a series of calls:
  47  *
  48  *              ia64_sn_set_os_feature(feature1);
  49  *
  50  * Once enabled, a feature cannot be disabled.
  51  *
  52  * By default, features are disabled unless explicitly enabled.
  53  */
  54 #define  OSF_MCA_SLV_TO_OS_INIT_SLV             0
  55 #define  OSF_FEAT_LOG_SBES                      1
  56
  57 #endif /* _ASM_IA64_SN_FEATURE_SETS_H */