1 files changed, 67 insertions, 0 deletions

diff --git a/drivers/misc/sgi-gru/gru.h b/drivers/misc/sgi-gru/gru.h
new file mode 100644
index 000000000000..40df7cb3f0a5
--- /dev/null
+++ b/drivers/misc/sgi-gru/gru.h
@@ -0,0 +1,67 @@
+/*
+ *  Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser 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 __GRU_H__
+#define __GRU_H__
+
+/*
+ * GRU architectural definitions
+ */
+#define GRU_CACHE_LINE_BYTES            64
+#define GRU_HANDLE_STRIDE               256
+#define GRU_CB_BASE                     0
+#define GRU_DS_BASE                     0x20000
+
+/*
+ * Size used to map GRU GSeg
+ */
+#if defined CONFIG_IA64
+#define GRU_GSEG_PAGESIZE       (256 * 1024UL)
+#elif defined CONFIG_X86_64
+#define GRU_GSEG_PAGESIZE       (256 * 1024UL)          /* ZZZ 2MB ??? */
+#else
+#error "Unsupported architecture"
+#endif
+
+/*
+ * Structure for obtaining GRU resource information
+ */
+struct gru_chiplet_info {
+        int     node;
+        int     chiplet;
+        int     blade;
+        int     total_dsr_bytes;
+        int     total_cbr;
+        int     total_user_dsr_bytes;
+        int     total_user_cbr;
+        int     free_user_dsr_bytes;
+        int     free_user_cbr;
+};
+
+/* Flags for GRU options on the gru_create_context() call */
+/* Select one of the follow 4 options to specify how TLB misses are handled */
+#define GRU_OPT_MISS_DEFAULT    0x0000  /* Use default mode */
+#define GRU_OPT_MISS_USER_POLL  0x0001  /* User will poll CB for faults */
+#define GRU_OPT_MISS_FMM_INTR   0x0002  /* Send interrupt to cpu to
+                                           handle fault */
+#define GRU_OPT_MISS_FMM_POLL   0x0003  /* Use system polling thread */
+#define GRU_OPT_MISS_MASK       0x0003  /* Mask for TLB MISS option */
+
+
+
+#endif          /* __GRU_H__ */