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/* * 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 <variant/core.h> #if defined(CONFIG_MMU) /* Will Become VECBASE */ #define VIRTUAL_MEMORY_ADDRESS 0xD0000000 /* Image Virtual Start Address */ #define KERNELOFFSET 0xD0003000 #if defined(XCHAL_HAVE_PTP_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY /* MMU v3 - XCHAL_HAVE_PTP_MMU == 1 */ #define PHYSICAL_MEMORY_ADDRESS 0x00000000 #define LOAD_MEMORY_ADDRESS 0x00003000 #else /* MMU V2 - XCHAL_HAVE_PTP_MMU == 0 */ #define PHYSICAL_MEMORY_ADDRESS 0xD0000000 #define LOAD_MEMORY_ADDRESS 0xD0003000 #endif #else /* !defined(CONFIG_MMU) */ /* MMU Not being used - Virtual == Physical */ /* VECBASE */ #define VIRTUAL_MEMORY_ADDRESS 0x00002000 /* Location of the start of the kernel text, _start */ #define KERNELOFFSET 0x00003000 #define PHYSICAL_MEMORY_ADDRESS 0x00000000 /* Loaded just above possibly live vectors */ #define LOAD_MEMORY_ADDRESS 0x00003000 #endif /* CONFIG_MMU */ #define XC_VADDR(offset) (VIRTUAL_MEMORY_ADDRESS + offset) #define XC_PADDR(offset) (PHYSICAL_MEMORY_ADDRESS + offset) /* Used to set VECBASE register */ #define VECBASE_RESET_VADDR VIRTUAL_MEMORY_ADDRESS #define RESET_VECTOR_VECOFS (XCHAL_RESET_VECTOR_VADDR - \ VECBASE_RESET_VADDR) #define RESET_VECTOR_VADDR XC_VADDR(RESET_VECTOR_VECOFS) #define RESET_VECTOR1_VECOFS (XCHAL_RESET_VECTOR1_VADDR - \ VECBASE_RESET_VADDR) #define RESET_VECTOR1_VADDR XC_VADDR(RESET_VECTOR1_VECOFS) #if XCHAL_HAVE_VECBASE #define USER_VECTOR_VADDR XC_VADDR(XCHAL_USER_VECOFS) #define KERNEL_VECTOR_VADDR XC_VADDR(XCHAL_KERNEL_VECOFS) #define DOUBLEEXC_VECTOR_VADDR XC_VADDR(XCHAL_DOUBLEEXC_VECOFS) #define WINDOW_VECTORS_VADDR XC_VADDR(XCHAL_WINDOW_OF4_VECOFS) #define INTLEVEL2_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL2_VECOFS) #define INTLEVEL3_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL3_VECOFS) #define INTLEVEL4_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL4_VECOFS) #define INTLEVEL5_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL5_VECOFS) #define INTLEVEL6_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL6_VECOFS) #define DEBUG_VECTOR_VADDR XC_VADDR(XCHAL_DEBUG_VECOFS) #undef XCHAL_NMI_VECTOR_VADDR #define XCHAL_NMI_VECTOR_VADDR XC_VADDR(XCHAL_NMI_VECOFS) #undef XCHAL_INTLEVEL7_VECTOR_VADDR #define XCHAL_INTLEVEL7_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL7_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_RESET_VECTOR0_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_DEBUG_VECTOR_VADDR #undef XCHAL_NMI_VECTOR_VADDR #undef XCHAL_INTLEVEL7_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 DEBUG_VECTOR_VADDR XCHAL_DEBUG_VECTOR_VADDR #endif #endif /* _XTENSA_VECTORS_H */