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- /*
- * 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. PCI TCEs can have hardware or software maintianed
- * coherency.
- */
- #define TCE_VB 0
- #define TCE_PCI 1
- #define TCE_PCI_SWINV_CREATE 2
- #define TCE_PCI_SWINV_FREE 4
- #define TCE_PCI_SWINV_PAIR 8
- /* 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 */
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