| /* | |
| * arch/xtensa/include/asm/xchal_vaddr_remap.h | |
| * | |
| * Xtensa macros for MMU V3 Support. Deals with re-mapping the Virtual | |
| * Memory Addresses from "Virtual == Physical" to their prevvious V2 MMU | |
| * mappings (KSEG at 0xD0000000 and KIO at 0XF0000000). | |
| * | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| * | |
| * Copyright (C) 2008 - 2012 Tensilica Inc. | |
| * | |
| * Pete Delaney <piet@tensilica.com> | |
| * Marc Gauthier <marc@tensilica.com | |
| */ | |
| #ifndef _XTENSA_VECTORS_H | |
| #define _XTENSA_VECTORS_H | |
| #include <asm/core.h> | |
| #include <asm/kmem_layout.h> | |
| #if XCHAL_HAVE_PTP_MMU | |
| #define XCHAL_KIO_CACHED_VADDR 0xe0000000 | |
| #define XCHAL_KIO_BYPASS_VADDR 0xf0000000 | |
| #define XCHAL_KIO_DEFAULT_PADDR 0xf0000000 | |
| #else | |
| #define XCHAL_KIO_BYPASS_VADDR XCHAL_KIO_PADDR | |
| #define XCHAL_KIO_DEFAULT_PADDR 0x90000000 | |
| #endif | |
| #define XCHAL_KIO_SIZE 0x10000000 | |
| #if (!XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY) && defined(CONFIG_OF) | |
| #define XCHAL_KIO_PADDR xtensa_get_kio_paddr() | |
| #ifndef __ASSEMBLY__ | |
| extern unsigned long xtensa_kio_paddr; | |
| static inline unsigned long xtensa_get_kio_paddr(void) | |
| { | |
| return xtensa_kio_paddr; | |
| } | |
| #endif | |
| #else | |
| #define XCHAL_KIO_PADDR XCHAL_KIO_DEFAULT_PADDR | |
| #endif | |
| #if defined(CONFIG_MMU) | |
| #if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY | |
| /* Image Virtual Start Address */ | |
| #define KERNELOFFSET (XCHAL_KSEG_CACHED_VADDR + \ | |
| CONFIG_KERNEL_LOAD_ADDRESS - \ | |
| XCHAL_KSEG_PADDR) | |
| #else | |
| #define KERNELOFFSET CONFIG_KERNEL_LOAD_ADDRESS | |
| #endif | |
| #else /* !defined(CONFIG_MMU) */ | |
| /* MMU Not being used - Virtual == Physical */ | |
| /* Location of the start of the kernel text, _start */ | |
| #define KERNELOFFSET CONFIG_KERNEL_LOAD_ADDRESS | |
| #endif /* CONFIG_MMU */ | |
| #define RESET_VECTOR1_VADDR (XCHAL_RESET_VECTOR1_VADDR) | |
| #ifdef CONFIG_VECTORS_OFFSET | |
| #define VECBASE_VADDR (KERNELOFFSET - CONFIG_VECTORS_OFFSET) | |
| #else | |
| #define VECBASE_VADDR _vecbase | |
| #endif | |
| #if defined(XCHAL_HAVE_VECBASE) && XCHAL_HAVE_VECBASE | |
| #define VECTOR_VADDR(offset) (VECBASE_VADDR + offset) | |
| #define USER_VECTOR_VADDR VECTOR_VADDR(XCHAL_USER_VECOFS) | |
| #define KERNEL_VECTOR_VADDR VECTOR_VADDR(XCHAL_KERNEL_VECOFS) | |
| #define DOUBLEEXC_VECTOR_VADDR VECTOR_VADDR(XCHAL_DOUBLEEXC_VECOFS) | |
| #define WINDOW_VECTORS_VADDR VECTOR_VADDR(XCHAL_WINDOW_OF4_VECOFS) | |
| #define INTLEVEL2_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL2_VECOFS) | |
| #define INTLEVEL3_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL3_VECOFS) | |
| #define INTLEVEL4_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL4_VECOFS) | |
| #define INTLEVEL5_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL5_VECOFS) | |
| #define INTLEVEL6_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL6_VECOFS) | |
| #define INTLEVEL7_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL7_VECOFS) | |
| #define DEBUG_VECTOR_VADDR VECTOR_VADDR(XCHAL_DEBUG_VECOFS) | |
| /* | |
| * These XCHAL_* #defines from varian/core.h | |
| * are not valid to use with V3 MMU. Non-XCHAL | |
| * constants are defined above and should be used. | |
| */ | |
| #undef XCHAL_VECBASE_RESET_VADDR | |
| #undef XCHAL_USER_VECTOR_VADDR | |
| #undef XCHAL_KERNEL_VECTOR_VADDR | |
| #undef XCHAL_DOUBLEEXC_VECTOR_VADDR | |
| #undef XCHAL_WINDOW_VECTORS_VADDR | |
| #undef XCHAL_INTLEVEL2_VECTOR_VADDR | |
| #undef XCHAL_INTLEVEL3_VECTOR_VADDR | |
| #undef XCHAL_INTLEVEL4_VECTOR_VADDR | |
| #undef XCHAL_INTLEVEL5_VECTOR_VADDR | |
| #undef XCHAL_INTLEVEL6_VECTOR_VADDR | |
| #undef XCHAL_INTLEVEL7_VECTOR_VADDR | |
| #undef XCHAL_DEBUG_VECTOR_VADDR | |
| #else | |
| #define USER_VECTOR_VADDR XCHAL_USER_VECTOR_VADDR | |
| #define KERNEL_VECTOR_VADDR XCHAL_KERNEL_VECTOR_VADDR | |
| #define DOUBLEEXC_VECTOR_VADDR XCHAL_DOUBLEEXC_VECTOR_VADDR | |
| #define WINDOW_VECTORS_VADDR XCHAL_WINDOW_VECTORS_VADDR | |
| #define INTLEVEL2_VECTOR_VADDR XCHAL_INTLEVEL2_VECTOR_VADDR | |
| #define INTLEVEL3_VECTOR_VADDR XCHAL_INTLEVEL3_VECTOR_VADDR | |
| #define INTLEVEL4_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR | |
| #define INTLEVEL5_VECTOR_VADDR XCHAL_INTLEVEL5_VECTOR_VADDR | |
| #define INTLEVEL6_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR | |
| #define INTLEVEL7_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR | |
| #define DEBUG_VECTOR_VADDR XCHAL_DEBUG_VECTOR_VADDR | |
| #endif | |
| #endif /* _XTENSA_VECTORS_H */ |