1 files changed, 94 insertions, 0 deletions

diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
new file mode 100644
index 000000000000..51cadc645e6f
--- /dev/null
+++ b/arch/x86/include/asm/uv/bios.h
@@ -0,0 +1,94 @@
+#ifndef _ASM_X86_UV_BIOS_H
+#define _ASM_X86_UV_BIOS_H
+
+/*
+ * UV BIOS layer definitions.
+ *
+ *  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
+ *
+ *  Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
+ *  Copyright (c) Russ Anderson
+ */
+
+#include <linux/rtc.h>
+
+/*
+ * Values for the BIOS calls.  It is passed as the first * argument in the
+ * BIOS call.  Passing any other value in the first argument will result
+ * in a BIOS_STATUS_UNIMPLEMENTED return status.
+ */
+enum uv_bios_cmd {
+        UV_BIOS_COMMON,
+        UV_BIOS_GET_SN_INFO,
+        UV_BIOS_FREQ_BASE
+};
+
+/*
+ * Status values returned from a BIOS call.
+ */
+enum {
+        BIOS_STATUS_SUCCESS             =  0,
+        BIOS_STATUS_UNIMPLEMENTED       = -ENOSYS,
+        BIOS_STATUS_EINVAL              = -EINVAL,
+        BIOS_STATUS_UNAVAIL             = -EBUSY
+};
+
+/*
+ * The UV system table describes specific firmware
+ * capabilities available to the Linux kernel at runtime.
+ */
+struct uv_systab {
+        char signature[4];      /* must be "UVST" */
+        u32 revision;           /* distinguish different firmware revs */
+        u64 function;           /* BIOS runtime callback function ptr */
+};
+
+enum {
+        BIOS_FREQ_BASE_PLATFORM = 0,
+        BIOS_FREQ_BASE_INTERVAL_TIMER = 1,
+        BIOS_FREQ_BASE_REALTIME_CLOCK = 2
+};
+
+union partition_info_u {
+        u64     val;
+        struct {
+                u64     hub_version     :  8,
+                        partition_id    : 16,
+                        coherence_id    : 16,
+                        region_size     : 24;
+        };
+};
+
+/*
+ * bios calls have 6 parameters
+ */
+extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64);
+extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64);
+extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64);
+
+extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *);
+extern s64 uv_bios_freq_base(u64, u64 *);
+
+extern void uv_bios_init(void);
+
+extern int uv_type;
+extern long sn_partition_id;
+extern long sn_coherency_id;
+extern long sn_region_size;
+#define partition_coherence_id()        (sn_coherency_id)
+
+extern struct kobject *sgi_uv_kobj;     /* /sys/firmware/sgi_uv */
+
+#endif /* _ASM_X86_UV_BIOS_H */