2 files changed, 84 insertions, 9 deletions

diff --git a/include/asm-ia64/sn/sn_feature_sets.h b/include/asm-ia64/sn/sn_feature_sets.h
new file mode 100644
index 000000000000..e68a80853d5d
--- /dev/null
+++ b/include/asm-ia64/sn/sn_feature_sets.h
@@ -0,0 +1,57 @@
+#ifndef _ASM_IA64_SN_FEATURE_SETS_H
+#define _ASM_IA64_SN_FEATURE_SETS_H
+
+/*
+ * SN PROM Features
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (c) 2005 Silicon Graphics, Inc.  All rights reserved.
+ */
+
+
+#include <asm/types.h>
+#include <asm/bitops.h>
+
+/* --------------------- PROM Features -----------------------------*/
+extern int sn_prom_feature_available(int id);
+
+#define MAX_PROM_FEATURE_SETS                   2
+
+/*
+ * The following defines features that may or may not be supported by the
+ * current PROM. The OS uses sn_prom_feature_available(feature) to test for
+ * the presence of a PROM feature. Down rev (old) PROMs will always test
+ * "false" for new features.
+ *
+ * Use:
+ *              if (sn_prom_feature_available(PRF_FEATURE_XXX))
+ *                      ...
+ */
+
+/*
+ * Example: feature XXX
+ */
+#define PRF_FEATURE_XXX         0
+
+
+
+/* --------------------- OS Features -------------------------------*/
+
+/*
+ * The following defines OS features that are optionally present in
+ * the operating system.
+ * During boot, PROM is notified of these features via a series of calls:
+ *
+ *              ia64_sn_set_os_feature(feature1);
+ *
+ * Once enabled, a feature cannot be disabled.
+ *
+ * By default, features are disabled unless explicitly enabled.
+ */
+#define  OSF_MCA_SLV_TO_OS_INIT_SLV             0
+#define  OSF_FEAT_LOG_SBES                      1
+
+#endif /* _ASM_IA64_SN_FEATURE_SETS_H */
diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h
index 27976d223186..231d0d04c3e8 100644
--- a/include/asm-ia64/sn/sn_sal.h
+++ b/include/asm-ia64/sn/sn_sal.h
@@ -80,6 +80,9 @@
 #define SN_SAL_BTE_RECOVER                         0x02000061
 #define SN_SAL_IOIF_GET_PCI_TOPOLOGY               0x02000062
 
+#define  SN_SAL_GET_PROM_FEATURE_SET               0x02000065
+#define  SN_SAL_SET_OS_FEATURE_SET                 0x02000066
+
 /*
  * Service-specific constants
  */
@@ -118,8 +121,8 @@
 /*
  * Error Handling Features
  */
-#define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV     0x1
-#define SAL_ERR_FEAT_LOG_SBES                   0x2
+#define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV     0x1     // obsolete
+#define SAL_ERR_FEAT_LOG_SBES                   0x2     // obsolete
 #define SAL_ERR_FEAT_MFR_OVERRIDE               0x4
 #define SAL_ERR_FEAT_SBE_THRESHOLD              0xffff0000
 
@@ -152,12 +155,6 @@ sn_sal_rev(void)
 }
 
 /*
- * Specify the minimum PROM revsion required for this kernel.
- * Note that they're stored in hex format...
- */
-#define SN_SAL_MIN_VERSION      0x0404
-
-/*
  * Returns the master console nasid, if the call fails, return an illegal
  * value.
  */
@@ -336,7 +333,7 @@ ia64_sn_plat_cpei_handler(void)
 }
 
 /*
- * Set Error Handling Features
+ * Set Error Handling Features  (Obsolete)
  */
 static inline u64
 ia64_sn_plat_set_error_handling_features(void)
@@ -1100,4 +1097,25 @@ ia64_sn_is_fake_prom(void)
         return (rv.status == 0);
 }
 
+static inline int
+ia64_sn_get_prom_feature_set(int set, unsigned long *feature_set)
+{
+        struct ia64_sal_retval rv;
+
+        SAL_CALL_NOLOCK(rv, SN_SAL_GET_PROM_FEATURE_SET, set, 0, 0, 0, 0, 0, 0);
+        if (rv.status != 0)
+                return rv.status;
+        *feature_set = rv.v0;
+        return 0;
+}
+
+static inline int
+ia64_sn_set_os_feature(int feature)
+{
+        struct ia64_sal_retval rv;
+
+        SAL_CALL_NOLOCK(rv, SN_SAL_SET_OS_FEATURE_SET, feature, 0, 0, 0, 0, 0, 0);
+        return rv.status;
+}
+
 #endif /* _ASM_IA64_SN_SN_SAL_H */