| Patrick Daly | 2330148 | 2017-10-12 16:18:25 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017, The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | */ |
| 14 | |
| 15 | #ifndef __ARM_SMMU_ERRATA_H__ |
| 16 | #define __ARM_SMMU_ERRATA_H__ |
| 17 | |
| 18 | #define ARM_SMMU_MIN_IOVA_ALIGN SZ_16K |
| 19 | #define ARM_SMMU_GUARD_PROT (IOMMU_READ | IOMMU_WRITE | IOMMU_GUARD) |
| 20 | |
| 21 | #ifdef CONFIG_ARM_SMMU |
| 22 | |
| 23 | struct page *arm_smmu_errata_get_guard_page(int vmid); |
| 24 | #else |
| 25 | |
| 26 | static inline struct page *arm_smmu_errata_get_guard_page( |
| 27 | int vmid) |
| 28 | { |
| 29 | return NULL; |
| 30 | } |
| 31 | #endif |
| 32 | #endif |