| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * This file is derived from asm-powerpc/tce.h. |
| * |
| * Copyright (C) IBM Corporation, 2006 |
| * |
| * Author: Muli Ben-Yehuda <muli@il.ibm.com> |
| * Author: Jon Mason <jdmason@us.ibm.com> |
| */ |
| |
| #ifndef _ASM_X86_TCE_H |
| #define _ASM_X86_TCE_H |
| |
| extern unsigned int specified_table_size; |
| struct iommu_table; |
| |
| #define TCE_ENTRY_SIZE 8 /* in bytes */ |
| |
| #define TCE_READ_SHIFT 0 |
| #define TCE_WRITE_SHIFT 1 |
| #define TCE_HUBID_SHIFT 2 /* unused */ |
| #define TCE_RSVD_SHIFT 8 /* unused */ |
| #define TCE_RPN_SHIFT 12 |
| #define TCE_UNUSED_SHIFT 48 /* unused */ |
| |
| #define TCE_RPN_MASK 0x0000fffffffff000ULL |
| |
| extern void tce_build(struct iommu_table *tbl, unsigned long index, |
| unsigned int npages, unsigned long uaddr, int direction); |
| extern void tce_free(struct iommu_table *tbl, long index, unsigned int npages); |
| extern void * __init alloc_tce_table(void); |
| extern void __init free_tce_table(void *tbl); |
| extern int __init build_tce_table(struct pci_dev *dev, void __iomem *bbar); |
| |
| #endif /* _ASM_X86_TCE_H */ |
