This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-x86_64 / calgary.h

diff --git a/include/asm-x86_64/calgary.h b/include/asm-x86_64/calgary.h
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+/*
+ * Derived from include/asm-powerpc/iommu.h
+ *
+ * Copyright (C) IBM Corporation, 2006
+ *
+ * Author: Jon Mason <jdmason@us.ibm.com>
+ * Author: Muli Ben-Yehuda <muli@il.ibm.com>
+ *
+ * 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 _ASM_X86_64_CALGARY_H
+#define _ASM_X86_64_CALGARY_H
+
+#include <linux/spinlock.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <asm/types.h>
+
+struct iommu_table {
+       unsigned long  it_base;      /* mapped address of tce table */
+       unsigned long  it_hint;      /* Hint for next alloc */
+       unsigned long *it_map;       /* A simple allocation bitmap for now */
+       spinlock_t     it_lock;      /* Protects it_map */
+       unsigned int   it_size;      /* Size of iommu table in entries */
+       unsigned char  it_busno;     /* Bus number this table belongs to */
+       void __iomem  *bbar;
+       u64            tar_val;
+       struct timer_list watchdog_timer;
+};
+
+#define TCE_TABLE_SIZE_UNSPECIFIED     ~0
+#define TCE_TABLE_SIZE_64K             0
+#define TCE_TABLE_SIZE_128K            1
+#define TCE_TABLE_SIZE_256K            2
+#define TCE_TABLE_SIZE_512K            3
+#define TCE_TABLE_SIZE_1M              4
+#define TCE_TABLE_SIZE_2M              5
+#define TCE_TABLE_SIZE_4M              6
+#define TCE_TABLE_SIZE_8M              7
+
+#ifdef CONFIG_CALGARY_IOMMU
+extern int calgary_iommu_init(void);
+extern void detect_calgary(void);
+#else
+static inline int calgary_iommu_init(void) { return 1; }
+static inline void detect_calgary(void) { return; }
+#endif
+
+#endif /* _ASM_X86_64_CALGARY_H */