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+/*
+ * Copyright (C) 2001 Mike Corrigan IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _ISERIES_RELEASE_DATA_H
+#define _ISERIES_RELEASE_DATA_H
+
+/*
+ * This control block contains the critical information about the
+ * release so that it can be changed in the future (ie, the virtual
+ * address of the OS's NACA).
+ */
+#include <asm/types.h>
+#include "naca.h"
+
+/*
+ * When we IPL a secondary partition, we will check if if the
+ * secondary xMinPlicVrmIndex > the primary xVrmIndex.
+ * If it is then this tells PLIC that this secondary is not
+ * supported running on this "old" of a level of PLIC.
+ *
+ * Likewise, we will compare the primary xMinSlicVrmIndex to
+ * the secondary xVrmIndex.
+ * If the primary xMinSlicVrmDelta > secondary xVrmDelta then we
+ * know that this PLIC does not support running an OS "that old".
+ */
+
+#define HVREL_TAGSINACTIVE 0x8000
+#define HVREL_32BIT 0x4000
+#define HVREL_NOSHAREDPROCS 0x2000
+#define HVREL_NOHMT 0x1000
+
+struct HvReleaseData {
+ u32 xDesc; /* Descriptor "HvRD" ebcdic x00-x03 */
+ u16 xSize; /* Size of this control block x04-x05 */
+ u16 xVpdAreasPtrOffset; /* Offset in NACA of ItVpdAreas x06-x07 */
+ struct naca_struct *xSlicNacaAddr; /* Virt addr of SLIC NACA x08-x0F */
+ u32 xMsNucDataOffset; /* Offset of Linux Mapping Data x10-x13 */
+ u32 xRsvd1; /* Reserved x14-x17 */
+ u16 xFlags;
+ u16 xVrmIndex; /* VRM Index of OS image x1A-x1B */
+ u16 xMinSupportedPlicVrmIndex; /* Min PLIC level (soft) x1C-x1D */
+ u16 xMinCompatablePlicVrmIndex; /* Min PLIC levelP (hard) x1E-x1F */
+ char xVrmName[12]; /* Displayable name x20-x2B */
+ char xRsvd3[20]; /* Reserved x2C-x3F */
+};
+
+extern struct HvReleaseData hvReleaseData;
+
+#endif /* _ISERIES_RELEASE_DATA_H */