Release 4.14 arch/powerpc/include/asm/tce.h
/*
* 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
/* 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 */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Olof Johansson | 63 | 82.89% | 4 | 50.00% |
| Arnd Bergmann | 6 | 7.89% | 1 | 12.50% |
| Linas Vepstas | 3 | 3.95% | 1 | 12.50% |
| David Gibson | 3 | 3.95% | 1 | 12.50% |
| Milton D. Miller II | 1 | 1.32% | 1 | 12.50% |
| Total | 76 | 100.00% | 8 | 100.00% |
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