| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * arch/xtensa/include/asm/xchal_vaddr_remap.h |
| 3 | * |
| 4 | * Xtensa macros for MMU V3 Support. Deals with re-mapping the Virtual |
| 5 | * Memory Addresses from "Virtual == Physical" to their prevvious V2 MMU |
| 6 | * mappings (KSEG at 0xD0000000 and KIO at 0XF0000000). |
| 7 | * |
| 8 | * This file is subject to the terms and conditions of the GNU General Public |
| 9 | * License. See the file "COPYING" in the main directory of this archive |
| 10 | * for more details. |
| 11 | * |
| 12 | * Copyright (C) 2008 - 2012 Tensilica Inc. |
| 13 | * |
| 14 | * Pete Delaney <piet@tensilica.com> |
| 15 | * Marc Gauthier <marc@tensilica.com |
| 16 | */ |
| 17 | |
| 18 | #ifndef _XTENSA_VECTORS_H |
| 19 | #define _XTENSA_VECTORS_H |
| 20 | |
| 21 | #include <asm/core.h> |
| 22 | #include <asm/kmem_layout.h> |
| 23 | |
| 24 | #if defined(CONFIG_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY |
| 25 | #define KERNELOFFSET (CONFIG_KERNEL_LOAD_ADDRESS + \ |
| 26 | XCHAL_KSEG_CACHED_VADDR - \ |
| 27 | XCHAL_KSEG_PADDR) |
| 28 | #else |
| 29 | #define KERNELOFFSET CONFIG_KERNEL_LOAD_ADDRESS |
| 30 | #endif |
| 31 | |
| 32 | #define RESET_VECTOR1_VADDR (XCHAL_RESET_VECTOR1_VADDR) |
| 33 | #ifdef CONFIG_VECTORS_OFFSET |
| 34 | #define VECBASE_VADDR (KERNELOFFSET - CONFIG_VECTORS_OFFSET) |
| 35 | #else |
| 36 | #define VECBASE_VADDR _vecbase |
| 37 | #endif |
| 38 | |
| 39 | #if defined(XCHAL_HAVE_VECBASE) && XCHAL_HAVE_VECBASE |
| 40 | |
| 41 | #define VECTOR_VADDR(offset) (VECBASE_VADDR + offset) |
| 42 | |
| 43 | #define USER_VECTOR_VADDR VECTOR_VADDR(XCHAL_USER_VECOFS) |
| 44 | #define KERNEL_VECTOR_VADDR VECTOR_VADDR(XCHAL_KERNEL_VECOFS) |
| 45 | #define DOUBLEEXC_VECTOR_VADDR VECTOR_VADDR(XCHAL_DOUBLEEXC_VECOFS) |
| 46 | #define WINDOW_VECTORS_VADDR VECTOR_VADDR(XCHAL_WINDOW_OF4_VECOFS) |
| 47 | #define INTLEVEL2_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL2_VECOFS) |
| 48 | #define INTLEVEL3_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL3_VECOFS) |
| 49 | #define INTLEVEL4_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL4_VECOFS) |
| 50 | #define INTLEVEL5_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL5_VECOFS) |
| 51 | #define INTLEVEL6_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL6_VECOFS) |
| 52 | #define INTLEVEL7_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL7_VECOFS) |
| 53 | #define DEBUG_VECTOR_VADDR VECTOR_VADDR(XCHAL_DEBUG_VECOFS) |
| 54 | |
| 55 | /* |
| 56 | * These XCHAL_* #defines from varian/core.h |
| 57 | * are not valid to use with V3 MMU. Non-XCHAL |
| 58 | * constants are defined above and should be used. |
| 59 | */ |
| 60 | #undef XCHAL_VECBASE_RESET_VADDR |
| 61 | #undef XCHAL_USER_VECTOR_VADDR |
| 62 | #undef XCHAL_KERNEL_VECTOR_VADDR |
| 63 | #undef XCHAL_DOUBLEEXC_VECTOR_VADDR |
| 64 | #undef XCHAL_WINDOW_VECTORS_VADDR |
| 65 | #undef XCHAL_INTLEVEL2_VECTOR_VADDR |
| 66 | #undef XCHAL_INTLEVEL3_VECTOR_VADDR |
| 67 | #undef XCHAL_INTLEVEL4_VECTOR_VADDR |
| 68 | #undef XCHAL_INTLEVEL5_VECTOR_VADDR |
| 69 | #undef XCHAL_INTLEVEL6_VECTOR_VADDR |
| 70 | #undef XCHAL_INTLEVEL7_VECTOR_VADDR |
| 71 | #undef XCHAL_DEBUG_VECTOR_VADDR |
| 72 | |
| 73 | #else |
| 74 | |
| 75 | #define USER_VECTOR_VADDR XCHAL_USER_VECTOR_VADDR |
| 76 | #define KERNEL_VECTOR_VADDR XCHAL_KERNEL_VECTOR_VADDR |
| 77 | #define DOUBLEEXC_VECTOR_VADDR XCHAL_DOUBLEEXC_VECTOR_VADDR |
| 78 | #define WINDOW_VECTORS_VADDR XCHAL_WINDOW_VECTORS_VADDR |
| 79 | #define INTLEVEL2_VECTOR_VADDR XCHAL_INTLEVEL2_VECTOR_VADDR |
| 80 | #define INTLEVEL3_VECTOR_VADDR XCHAL_INTLEVEL3_VECTOR_VADDR |
| 81 | #define INTLEVEL4_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR |
| 82 | #define INTLEVEL5_VECTOR_VADDR XCHAL_INTLEVEL5_VECTOR_VADDR |
| 83 | #define INTLEVEL6_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR |
| 84 | #define INTLEVEL7_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR |
| 85 | #define DEBUG_VECTOR_VADDR XCHAL_DEBUG_VECTOR_VADDR |
| 86 | |
| 87 | #endif |
| 88 | |
| 89 | #endif /* _XTENSA_VECTORS_H */ |