Merge branch 'linus' into sched/urgent

1 files changed, 50 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/tce.h b/arch/powerpc/include/asm/tce.h
new file mode 100644
index 000000000000..f663634cccc9
--- /dev/null
+++ b/arch/powerpc/include/asm/tce.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
+ * Rewrite, cleanup:
+ * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, 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 _ASM_POWERPC_TCE_H
+#define _ASM_POWERPC_TCE_H
+#ifdef __KERNEL__
+
+#include <asm/iommu.h>
+
+/*
+ * Tces come in two formats, one for the virtual bus and a different
+ * format for PCI
+ */
+#define TCE_VB  0
+#define TCE_PCI 1
+
+/* TCE page size is 4096 bytes (1 << 12) */
+
+#define TCE_SHIFT	12
+#define TCE_PAGE_SIZE	(1 << TCE_SHIFT)
+
+#define TCE_ENTRY_SIZE		8		/* each TCE is 64 bits */
+
+#define TCE_RPN_MASK		0xfffffffffful  /* 40-bit RPN (4K pages) */
+#define TCE_RPN_SHIFT		12
+#define TCE_VALID		0x800		/* TCE valid */
+#define TCE_ALLIO		0x400		/* TCE valid for all lpars */
+#define TCE_PCI_WRITE		0x2		/* write from PCI allowed */
+#define TCE_PCI_READ		0x1		/* read from PCI allowed */
+#define TCE_VB_WRITE		0x1		/* write from VB allowed */
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_TCE_H */