| /* SPDX-License-Identifier: GPL-2.0-or-later */ | |
| /* | |
| * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation | |
| * Rewrite, cleanup: | |
| * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation | |
| */ | |
| #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_ENTRY_SIZE 8 /* each TCE is 64 bits */ | |
| #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 */ |