1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28 
  29 #if defined(lint)
  30 #include <sys/types.h>
  31 #else
  32 #include "assym.h"
  33 #endif /* lint */
  34 
  35 #include <sys/asm_linkage.h>
  36 #include <sys/param.h>
  37 #include <sys/privregs.h>
  38 #include <sys/machasi.h>
  39 #include <sys/mmu.h>
  40 #include <sys/machthread.h>
  41 #include <sys/pte.h>
  42 #include <sys/stack.h>
  43 #include <sys/vis.h>
  44 #include <sys/param.h>
  45 #include <sys/errno.h>
  46 #include <sys/vtrace.h>
  47 #include <sys/clock.h>
  48 #include <sys/asi.h>
  49 #include <sys/fsr.h>
  50 #include <sys/cheetahregs.h>
  51 
  52 #if defined(lint)
  53 
  54 /* ARGSUSED */
  55 uint64_t
  56 lddmcdecode(uint64_t physaddr)
  57 {
  58         return (0x0ull);
  59 }
  60 
  61 /* ARGSUSED */
  62 uint64_t
  63 lddsafaddr(uint64_t physaddr)
  64 {
  65         return (0x0ull);
  66 }
  67 
  68 #else /* !lint */
  69 
  70 !
  71 ! Load the safari address for a specific cpu
  72 !
  73 !
  74         ENTRY(lddsafaddr)
  75 #ifndef __sparcv9
  76         sllx    %o0, 32, %o0    ! shift upper 32 bits
  77         srl     %o1, 0, %o1     ! clear upper 32 bits
  78         or      %o0, %o1, %o0   ! form 64 bit physaddr in %o0 using (%o0,%o1)
  79 #endif
  80         rdpr    %pstate, %o4
  81         andn    %o4, PSTATE_IE | PSTATE_AM, %o5
  82         wrpr    %o5, 0, %pstate ! clear IE, AM bits
  83 #ifdef __sparcv9
  84         ldxa    [%o0]ASI_SAFARI_CONFIG, %o0
  85 #else
  86         ldxa    [%o0]ASI_SAFARI_CONFIG, %g1
  87         srlx    %g1, 32, %o0    ! put the high 32 bits in low part of o0
  88         srl     %g1, 0, %o1     ! put lower 32 bits in o1, clear upper 32 bits
  89 #endif
  90         retl
  91         wrpr    %g0, %o4, %pstate       ! restore earlier pstate register value
  92         SET_SIZE(lddsafaddr)
  93 
  94 !
  95 ! Load the mc_decode reg for this cpu.
  96 !
  97 !
  98         ENTRY(lddmcdecode)
  99 #ifndef __sparcv9
 100         sllx    %o0, 32, %o0    ! shift upper 32 bits
 101         srl     %o1, 0, %o1     ! clear upper 32 bits
 102         or      %o0, %o1, %o0   ! form 64 bit physaddr in %o0 using (%o0,%o1)
 103 #endif
 104         rdpr    %pstate, %o4
 105         andn    %o4, PSTATE_IE | PSTATE_AM, %o5
 106         wrpr    %o5, 0, %pstate ! clear IE, AM bits
 107 #ifdef __sparcv9
 108         ldxa    [%o0]ASI_MC_DECODE, %o0
 109 #else
 110         ldxa    [%o0]ASI_MC_DECODE, %g1
 111         srlx    %g1, 32, %o0    ! put the high 32 bits in low part of o0
 112         srl     %g1, 0, %o1     ! put lower 32 bits in o1, clear upper 32 bits
 113 #endif
 114         retl
 115         wrpr    %g0, %o4, %pstate       ! restore earlier pstate register value
 116         SET_SIZE(lddmcdecode)
 117 
 118 #endif /* lint */