/* * 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 */