arch/xtensa/include/asm/vectors.h

   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 #ifdef CONFIG_KERNEL_VIRTUAL_ADDRESS
  26 #define KERNELOFFSET                    CONFIG_KERNEL_VIRTUAL_ADDRESS
  27 #else
  28 #define KERNELOFFSET                    (CONFIG_KERNEL_LOAD_ADDRESS + \
  29                                          XCHAL_KSEG_CACHED_VADDR - \
  30                                          XCHAL_KSEG_PADDR)
  31 #endif
  32 #else
  33 #define KERNELOFFSET                    CONFIG_KERNEL_LOAD_ADDRESS
  34 #endif
  35
  36 #define RESET_VECTOR1_VADDR             (XCHAL_RESET_VECTOR1_VADDR)
  37 #ifdef CONFIG_VECTORS_ADDR
  38 #define VECBASE_VADDR                   (CONFIG_VECTORS_ADDR)
  39 #else
  40 #define VECBASE_VADDR                   _vecbase
  41 #endif
  42
  43 #if XCHAL_HAVE_VECBASE
  44
  45 #define VECTOR_VADDR(offset)            (VECBASE_VADDR + offset)
  46
  47 #define USER_VECTOR_VADDR               VECTOR_VADDR(XCHAL_USER_VECOFS)
  48 #define KERNEL_VECTOR_VADDR             VECTOR_VADDR(XCHAL_KERNEL_VECOFS)
  49 #define DOUBLEEXC_VECTOR_VADDR          VECTOR_VADDR(XCHAL_DOUBLEEXC_VECOFS)
  50 #define WINDOW_VECTORS_VADDR            VECTOR_VADDR(XCHAL_WINDOW_OF4_VECOFS)
  51 #define INTLEVEL2_VECTOR_VADDR          VECTOR_VADDR(XCHAL_INTLEVEL2_VECOFS)
  52 #define INTLEVEL3_VECTOR_VADDR          VECTOR_VADDR(XCHAL_INTLEVEL3_VECOFS)
  53 #define INTLEVEL4_VECTOR_VADDR          VECTOR_VADDR(XCHAL_INTLEVEL4_VECOFS)
  54 #define INTLEVEL5_VECTOR_VADDR          VECTOR_VADDR(XCHAL_INTLEVEL5_VECOFS)
  55 #define INTLEVEL6_VECTOR_VADDR          VECTOR_VADDR(XCHAL_INTLEVEL6_VECOFS)
  56 #define INTLEVEL7_VECTOR_VADDR          VECTOR_VADDR(XCHAL_INTLEVEL7_VECOFS)
  57 #define DEBUG_VECTOR_VADDR              VECTOR_VADDR(XCHAL_DEBUG_VECOFS)
  58
  59 /*
  60  * These XCHAL_* #defines from varian/core.h
  61  * are not valid to use with V3 MMU. Non-XCHAL
  62  * constants are defined above and should be used.
  63  */
  64 #undef  XCHAL_VECBASE_RESET_VADDR
  65 #undef  XCHAL_USER_VECTOR_VADDR
  66 #undef  XCHAL_KERNEL_VECTOR_VADDR
  67 #undef  XCHAL_DOUBLEEXC_VECTOR_VADDR
  68 #undef  XCHAL_WINDOW_VECTORS_VADDR
  69 #undef  XCHAL_INTLEVEL2_VECTOR_VADDR
  70 #undef  XCHAL_INTLEVEL3_VECTOR_VADDR
  71 #undef  XCHAL_INTLEVEL4_VECTOR_VADDR
  72 #undef  XCHAL_INTLEVEL5_VECTOR_VADDR
  73 #undef  XCHAL_INTLEVEL6_VECTOR_VADDR
  74 #undef  XCHAL_INTLEVEL7_VECTOR_VADDR
  75 #undef  XCHAL_DEBUG_VECTOR_VADDR
  76
  77 #else
  78
  79 #define USER_VECTOR_VADDR               XCHAL_USER_VECTOR_VADDR
  80 #define KERNEL_VECTOR_VADDR             XCHAL_KERNEL_VECTOR_VADDR
  81 #define DOUBLEEXC_VECTOR_VADDR          XCHAL_DOUBLEEXC_VECTOR_VADDR
  82 #define WINDOW_VECTORS_VADDR            XCHAL_WINDOW_VECTORS_VADDR
  83 #define INTLEVEL2_VECTOR_VADDR          XCHAL_INTLEVEL2_VECTOR_VADDR
  84 #define INTLEVEL3_VECTOR_VADDR          XCHAL_INTLEVEL3_VECTOR_VADDR
  85 #define INTLEVEL4_VECTOR_VADDR          XCHAL_INTLEVEL4_VECTOR_VADDR
  86 #define INTLEVEL5_VECTOR_VADDR          XCHAL_INTLEVEL5_VECTOR_VADDR
  87 #define INTLEVEL6_VECTOR_VADDR          XCHAL_INTLEVEL6_VECTOR_VADDR
  88 #define INTLEVEL7_VECTOR_VADDR          XCHAL_INTLEVEL6_VECTOR_VADDR
  89 #define DEBUG_VECTOR_VADDR              XCHAL_DEBUG_VECTOR_VADDR
  90
  91 #endif
  92
  93 #endif /* _XTENSA_VECTORS_H */