tlb.h

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    1 /*-
    2  * Copyright (c) 2001 Jake Burkholder.
    3  * Copyright (c) 2008, 2010 Marius Strobl <marius@FreeBSD.org>
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD: releng/10.1/sys/sparc64/include/tlb.h 223719 2011-07-02 11:14:54Z marius $
   28  */
   29 
   30 #ifndef _MACHINE_TLB_H_
   31 #define _MACHINE_TLB_H_
   32 
   33 #define TLB_DIRECT_ADDRESS_BITS         (43)
   34 #define TLB_DIRECT_PAGE_BITS            (PAGE_SHIFT_4M)
   35 
   36 #define TLB_DIRECT_ADDRESS_MASK         ((1UL << TLB_DIRECT_ADDRESS_BITS) - 1)
   37 #define TLB_DIRECT_PAGE_MASK            ((1UL << TLB_DIRECT_PAGE_BITS) - 1)
   38 
   39 #define TLB_PHYS_TO_DIRECT(pa)                                          \
   40         ((pa) | VM_MIN_DIRECT_ADDRESS)
   41 #define TLB_DIRECT_TO_PHYS(va)                                          \
   42         ((va) & TLB_DIRECT_ADDRESS_MASK)
   43 #define TLB_DIRECT_TO_TTE_MASK                                          \
   44         (TD_V | TD_4M | (TLB_DIRECT_ADDRESS_MASK - TLB_DIRECT_PAGE_MASK))
   45 
   46 #define TLB_DAR_SLOT_SHIFT              (3)
   47 #define TLB_DAR_TLB_SHIFT               (16)
   48 #define TLB_DAR_SLOT(tlb, slot)                                         \
   49         ((tlb) << TLB_DAR_TLB_SHIFT | (slot) << TLB_DAR_SLOT_SHIFT)
   50 #define TLB_DAR_T16                     (0)     /* US-III{,i,+}, IV{,+} */
   51 #define TLB_DAR_T32                     (0)     /* US-I, II{,e,i} */
   52 #define TLB_DAR_DT512_0                 (2)     /* US-III{,i,+}, IV{,+} */
   53 #define TLB_DAR_DT512_1                 (3)     /* US-III{,i,+}, IV{,+} */
   54 #define TLB_DAR_IT128                   (2)     /* US-III{,i,+}, IV */
   55 #define TLB_DAR_IT512                   (2)     /* US-IV+ */
   56 #define TLB_DAR_FTLB                    (0)     /* SPARC64 V, VI, VII, VIIIfx */
   57 #define TLB_DAR_STLB                    (2)     /* SPARC64 V, VI, VII, VIIIfx */
   58 
   59 #define TAR_VPN_SHIFT                   (13)
   60 #define TAR_CTX_MASK                    ((1 << TAR_VPN_SHIFT) - 1)
   61 
   62 #define TLB_TAR_VA(va)                  ((va) & ~TAR_CTX_MASK)
   63 #define TLB_TAR_CTX(ctx)                ((ctx) & TAR_CTX_MASK)
   64 
   65 #define TLB_CXR_CTX_BITS                (13)
   66 #define TLB_CXR_CTX_MASK                                                \
   67         (((1UL << TLB_CXR_CTX_BITS) - 1) << TLB_CXR_CTX_SHIFT)
   68 #define TLB_CXR_CTX_SHIFT               (0)
   69 #define TLB_CXR_PGSZ_BITS               (3)
   70 #define TLB_CXR_PGSZ_MASK               (~TLB_CXR_CTX_MASK)
   71 #define TLB_PCXR_N_IPGSZ0_SHIFT         (53)    /* SPARC64 VI, VII, VIIIfx */
   72 #define TLB_PCXR_N_IPGSZ1_SHIFT         (50)    /* SPARC64 VI, VII, VIIIfx */
   73 #define TLB_PCXR_N_PGSZ0_SHIFT          (61)
   74 #define TLB_PCXR_N_PGSZ1_SHIFT          (58)
   75 #define TLB_PCXR_N_PGSZ_I_SHIFT         (55)    /* US-IV+ */
   76 #define TLB_PCXR_P_IPGSZ0_SHIFT         (24)    /* SPARC64 VI, VII, VIIIfx */
   77 #define TLB_PCXR_P_IPGSZ1_SHIFT         (27)    /* SPARC64 VI, VII, VIIIfx */
   78 #define TLB_PCXR_P_PGSZ0_SHIFT          (16)
   79 #define TLB_PCXR_P_PGSZ1_SHIFT          (19)
   80 /*
   81  * Note that the US-IV+ documentation appears to have TLB_PCXR_P_PGSZ_I_SHIFT
   82  * and TLB_PCXR_P_PGSZ0_SHIFT erroneously inverted.
   83  */
   84 #define TLB_PCXR_P_PGSZ_I_SHIFT         (22)    /* US-IV+ */
   85 #define TLB_SCXR_S_PGSZ1_SHIFT          (19)
   86 #define TLB_SCXR_S_PGSZ0_SHIFT          (16)
   87 
   88 #define TLB_TAE_PGSZ_BITS               (3)
   89 #define TLB_TAE_PGSZ0_MASK                                              \
   90         (((1UL << TLB_TAE_PGSZ_BITS) - 1) << TLB_TAE_PGSZ0_SHIFT)
   91 #define TLB_TAE_PGSZ1_MASK                                              \
   92         (((1UL << TLB_TAE_PGSZ_BITS) - 1) << TLB_TAE_PGSZ1_SHIFT)
   93 #define TLB_TAE_PGSZ0_SHIFT             (16)
   94 #define TLB_TAE_PGSZ1_SHIFT             (19)
   95 
   96 #define TLB_DEMAP_ID_SHIFT              (4)
   97 #define TLB_DEMAP_ID_PRIMARY            (0)
   98 #define TLB_DEMAP_ID_SECONDARY          (1)
   99 #define TLB_DEMAP_ID_NUCLEUS            (2)
  100 
  101 #define TLB_DEMAP_TYPE_SHIFT            (6)
  102 #define TLB_DEMAP_TYPE_PAGE             (0)
  103 #define TLB_DEMAP_TYPE_CONTEXT          (1)
  104 #define TLB_DEMAP_TYPE_ALL              (2)     /* US-III and beyond only */
  105 
  106 #define TLB_DEMAP_VA(va)                ((va) & ~PAGE_MASK)
  107 #define TLB_DEMAP_ID(id)                ((id) << TLB_DEMAP_ID_SHIFT)
  108 #define TLB_DEMAP_TYPE(type)            ((type) << TLB_DEMAP_TYPE_SHIFT)
  109 
  110 #define TLB_DEMAP_PAGE                  (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_PAGE))
  111 #define TLB_DEMAP_CONTEXT               (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_CONTEXT))
  112 #define TLB_DEMAP_ALL                   (TLB_DEMAP_TYPE(TLB_DEMAP_TYPE_ALL))
  113 
  114 #define TLB_DEMAP_PRIMARY               (TLB_DEMAP_ID(TLB_DEMAP_ID_PRIMARY))
  115 #define TLB_DEMAP_SECONDARY             (TLB_DEMAP_ID(TLB_DEMAP_ID_SECONDARY))
  116 #define TLB_DEMAP_NUCLEUS               (TLB_DEMAP_ID(TLB_DEMAP_ID_NUCLEUS))
  117 
  118 #define TLB_CTX_KERNEL                  (0)
  119 #define TLB_CTX_USER_MIN                (1)
  120 #define TLB_CTX_USER_MAX                (8192)
  121 
  122 #define MMU_SFSR_ASI_SHIFT              (16)
  123 #define MMU_SFSR_FT_SHIFT               (7)
  124 #define MMU_SFSR_E_SHIFT                (6)
  125 #define MMU_SFSR_CT_SHIFT               (4)
  126 #define MMU_SFSR_PR_SHIFT               (3)
  127 #define MMU_SFSR_W_SHIFT                (2)
  128 #define MMU_SFSR_OW_SHIFT               (1)
  129 #define MMU_SFSR_FV_SHIFT               (0)
  130 
  131 #define MMU_SFSR_ASI_SIZE               (8)
  132 #define MMU_SFSR_FT_SIZE                (6)
  133 #define MMU_SFSR_CT_SIZE                (2)
  134 
  135 #define MMU_SFSR_GET_ASI(sfsr)                                          \
  136         (((sfsr) >> MMU_SFSR_ASI_SHIFT) & ((1UL << MMU_SFSR_ASI_SIZE) - 1))
  137 #define MMU_SFSR_GET_FT(sfsr)                                           \
  138         (((sfsr) >> MMU_SFSR_FT_SHIFT) & ((1UL << MMU_SFSR_FT_SIZE) - 1))
  139 #define MMU_SFSR_GET_CT(sfsr)                                           \
  140         (((sfsr) >> MMU_SFSR_CT_SHIFT) & ((1UL << MMU_SFSR_CT_SIZE) - 1))
  141 
  142 #define MMU_SFSR_E                      (1UL << MMU_SFSR_E_SHIFT)
  143 #define MMU_SFSR_PR                     (1UL << MMU_SFSR_PR_SHIFT)
  144 #define MMU_SFSR_W                      (1UL << MMU_SFSR_W_SHIFT)
  145 #define MMU_SFSR_OW                     (1UL << MMU_SFSR_OW_SHIFT)
  146 #define MMU_SFSR_FV                     (1UL << MMU_SFSR_FV_SHIFT)
  147 
  148 typedef void tlb_flush_nonlocked_t(void);
  149 typedef void tlb_flush_user_t(void);
  150 
  151 struct pmap;
  152 struct tlb_entry;
  153 
  154 extern int dtlb_slots;
  155 extern int itlb_slots;
  156 extern int kernel_tlb_slots;
  157 extern struct tlb_entry *kernel_tlbs;
  158 
  159 void    tlb_context_demap(struct pmap *pm);
  160 void    tlb_page_demap(struct pmap *pm, vm_offset_t va);
  161 void    tlb_range_demap(struct pmap *pm, vm_offset_t start, vm_offset_t end);
  162 
  163 tlb_flush_nonlocked_t cheetah_tlb_flush_nonlocked;
  164 tlb_flush_user_t cheetah_tlb_flush_user;
  165 
  166 tlb_flush_nonlocked_t spitfire_tlb_flush_nonlocked;
  167 tlb_flush_user_t spitfire_tlb_flush_user;
  168 
  169 tlb_flush_nonlocked_t zeus_tlb_flush_nonlocked;
  170 tlb_flush_user_t zeus_tlb_flush_user;
  171 
  172 extern tlb_flush_nonlocked_t *tlb_flush_nonlocked;
  173 extern tlb_flush_user_t *tlb_flush_user;
  174 
  175 #endif /* !_MACHINE_TLB_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/sparc64/include/tlb.h

FreeBSD/Linux Kernel Cross Reference
sys/sparc64/include/tlb.h