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) 2005-2006 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
  35 /* --------------------- OS Features -------------------------------*/
  36
  37 /*
  38  * The following defines OS features that are optionally present in
  39  * the operating system.
  40  * During boot, PROM is notified of these features via a series of calls:
  41  *
  42  *              ia64_sn_set_os_feature(feature1);
  43  *
  44  * Once enabled, a feature cannot be disabled.
  45  *
  46  * By default, features are disabled unless explicitly enabled.
  47  *
  48  * These defines must be kept in sync with the corresponding
  49  * PROM definitions in feature_sets.h.
  50  */
  51 #define  OSF_MCA_SLV_TO_OS_INIT_SLV     0
  52 #define  OSF_FEAT_LOG_SBES              1
  53 #define  OSF_ACPI_ENABLE                2
  54 #define  OSF_PCISEGMENT_ENABLE          3
  55
  56
  57 #endif /* _ASM_IA64_SN_FEATURE_SETS_H */