| 1 | ! Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 2 | !
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| 3 | ! Licensed under the Apache License 2.0 (the "License"). You may not use
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| 4 | ! this file except in compliance with the License. You can obtain a copy
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| 5 | ! in the file LICENSE in the source distribution or at
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| 6 | ! https://www.openssl.org/source/license.html
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| 7 |
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| 8 | #if defined(__SUNPRO_C) && defined(__sparcv9)
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| 9 | # define ABI64 /* They've said -xarch=v9 at command line */
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| 10 | #elif defined(__GNUC__) && defined(__arch64__)
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| 11 | # define ABI64 /* They've said -m64 at command line */
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| 12 | #endif
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| 13 |
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| 14 | #ifdef ABI64
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| 15 | .register %g2,#scratch
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| 16 | .register %g3,#scratch
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| 17 | # define FRAME -192
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| 18 | # define BIAS 2047
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| 19 | #else
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| 20 | # define FRAME -96
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| 21 | # define BIAS 0
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| 22 | #endif
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| 23 |
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| 24 | .text
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| 25 | .align 32
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| 26 | .global OPENSSL_wipe_cpu
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| 27 | .type OPENSSL_wipe_cpu,#function
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| 28 | ! Keep in mind that this does not excuse us from wiping the stack!
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| 29 | ! This routine wipes registers, but not the backing store [which
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| 30 | ! resides on the stack, toward lower addresses]. To facilitate for
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| 31 | ! stack wiping I return pointer to the top of stack of the *caller*.
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| 32 | OPENSSL_wipe_cpu:
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| 33 | save %sp,FRAME,%sp
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| 34 | nop
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| 35 | #ifdef __sun
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| 36 | #include <sys/trap.h>
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| 37 | ta ST_CLEAN_WINDOWS
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| 38 | #else
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| 39 | call .walk.reg.wins
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| 40 | #endif
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| 41 | nop
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| 42 | call .PIC.zero.up
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| 43 | mov .zero-(.-4),%o0
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| 44 | ld [%o0],%f0
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| 45 | ld [%o0],%f1
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| 46 |
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| 47 | subcc %g0,1,%o0
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| 48 | ! Following is V9 "rd %ccr,%o0" instruction. However! V8
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| 49 | ! specification says that it ("rd %asr2,%o0" in V8 terms) does
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| 50 | ! not cause illegal_instruction trap. It therefore can be used
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| 51 | ! to determine if the CPU the code is executing on is V8- or
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| 52 | ! V9-compliant, as V9 returns a distinct value of 0x99,
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| 53 | ! "negative" and "borrow" bits set in both %icc and %xcc.
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| 54 | .word 0x91408000 !rd %ccr,%o0
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| 55 | cmp %o0,0x99
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| 56 | bne .v8
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| 57 | nop
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| 58 | ! Even though we do not use %fp register bank,
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| 59 | ! we wipe it as memcpy might have used it...
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| 60 | .word 0xbfa00040 !fmovd %f0,%f62
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| 61 | .word 0xbba00040 !...
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| 62 | .word 0xb7a00040
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| 63 | .word 0xb3a00040
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| 64 | .word 0xafa00040
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| 65 | .word 0xaba00040
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| 66 | .word 0xa7a00040
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| 67 | .word 0xa3a00040
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| 68 | .word 0x9fa00040
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| 69 | .word 0x9ba00040
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| 70 | .word 0x97a00040
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| 71 | .word 0x93a00040
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| 72 | .word 0x8fa00040
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| 73 | .word 0x8ba00040
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| 74 | .word 0x87a00040
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| 75 | .word 0x83a00040 !fmovd %f0,%f32
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| 76 | .v8: fmovs %f1,%f31
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| 77 | clr %o0
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| 78 | fmovs %f0,%f30
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| 79 | clr %o1
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| 80 | fmovs %f1,%f29
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| 81 | clr %o2
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| 82 | fmovs %f0,%f28
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| 83 | clr %o3
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| 84 | fmovs %f1,%f27
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| 85 | clr %o4
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| 86 | fmovs %f0,%f26
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| 87 | clr %o5
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| 88 | fmovs %f1,%f25
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| 89 | clr %o7
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| 90 | fmovs %f0,%f24
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| 91 | clr %l0
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| 92 | fmovs %f1,%f23
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| 93 | clr %l1
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| 94 | fmovs %f0,%f22
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| 95 | clr %l2
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| 96 | fmovs %f1,%f21
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| 97 | clr %l3
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| 98 | fmovs %f0,%f20
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| 99 | clr %l4
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| 100 | fmovs %f1,%f19
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| 101 | clr %l5
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| 102 | fmovs %f0,%f18
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| 103 | clr %l6
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| 104 | fmovs %f1,%f17
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| 105 | clr %l7
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| 106 | fmovs %f0,%f16
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| 107 | clr %i0
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| 108 | fmovs %f1,%f15
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| 109 | clr %i1
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| 110 | fmovs %f0,%f14
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| 111 | clr %i2
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| 112 | fmovs %f1,%f13
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| 113 | clr %i3
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| 114 | fmovs %f0,%f12
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| 115 | clr %i4
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| 116 | fmovs %f1,%f11
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| 117 | clr %i5
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| 118 | fmovs %f0,%f10
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| 119 | clr %g1
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| 120 | fmovs %f1,%f9
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| 121 | clr %g2
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| 122 | fmovs %f0,%f8
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| 123 | clr %g3
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| 124 | fmovs %f1,%f7
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| 125 | clr %g4
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| 126 | fmovs %f0,%f6
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| 127 | clr %g5
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| 128 | fmovs %f1,%f5
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| 129 | fmovs %f0,%f4
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| 130 | fmovs %f1,%f3
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| 131 | fmovs %f0,%f2
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| 132 |
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| 133 | add %fp,BIAS,%i0 ! return pointer to caller´s top of stack
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| 134 |
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| 135 | ret
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| 136 | restore
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| 137 |
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| 138 | .zero: .long 0x0,0x0
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| 139 | .PIC.zero.up:
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| 140 | retl
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| 141 | add %o0,%o7,%o0
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| 142 | #ifdef DEBUG
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| 143 | .global walk_reg_wins
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| 144 | .type walk_reg_wins,#function
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| 145 | walk_reg_wins:
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| 146 | #endif
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| 147 | .walk.reg.wins:
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| 148 | save %sp,FRAME,%sp
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| 149 | cmp %i7,%o7
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| 150 | be 2f
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| 151 | clr %o0
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| 152 | cmp %o7,0 ! compiler never cleans %o7...
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| 153 | be 1f ! could have been a leaf function...
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| 154 | clr %o1
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| 155 | call .walk.reg.wins
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| 156 | nop
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| 157 | 1: clr %o2
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| 158 | clr %o3
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| 159 | clr %o4
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| 160 | clr %o5
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| 161 | clr %o7
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| 162 | clr %l0
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| 163 | clr %l1
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| 164 | clr %l2
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| 165 | clr %l3
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| 166 | clr %l4
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| 167 | clr %l5
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| 168 | clr %l6
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| 169 | clr %l7
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| 170 | add %o0,1,%i0 ! used for debugging
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| 171 | 2: ret
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| 172 | restore
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| 173 | .size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
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| 174 |
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| 175 | .global OPENSSL_atomic_add
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| 176 | .type OPENSSL_atomic_add,#function
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| 177 | .align 32
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| 178 | OPENSSL_atomic_add:
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| 179 | #ifndef ABI64
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| 180 | subcc %g0,1,%o2
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| 181 | .word 0x95408000 !rd %ccr,%o2, see comment above
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| 182 | cmp %o2,0x99
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| 183 | be .v9
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| 184 | nop
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| 185 | save %sp,FRAME,%sp
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| 186 | ba .enter
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| 187 | nop
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| 188 | #ifdef __sun
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| 189 | ! Note that you do not have to link with libthread to call thr_yield,
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| 190 | ! as libc provides a stub, which is overloaded the moment you link
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| 191 | ! with *either* libpthread or libthread...
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| 192 | #define YIELD_CPU thr_yield
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| 193 | #else
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| 194 | ! applies at least to Linux and FreeBSD... Feedback expected...
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| 195 | #define YIELD_CPU sched_yield
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| 196 | #endif
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| 197 | .spin: call YIELD_CPU
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| 198 | nop
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| 199 | .enter: ld [%i0],%i2
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| 200 | cmp %i2,-4096
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| 201 | be .spin
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| 202 | mov -1,%i2
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| 203 | swap [%i0],%i2
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| 204 | cmp %i2,-1
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| 205 | be .spin
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| 206 | add %i2,%i1,%i2
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| 207 | stbar
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| 208 | st %i2,[%i0]
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| 209 | sra %i2,%g0,%i0
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| 210 | ret
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| 211 | restore
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| 212 | .v9:
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| 213 | #endif
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| 214 | ld [%o0],%o2
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| 215 | 1: add %o1,%o2,%o3
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| 216 | .word 0xd7e2100a !cas [%o0],%o2,%o3, compare [%o0] with %o2 and swap %o3
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| 217 | cmp %o2,%o3
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| 218 | bne 1b
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| 219 | mov %o3,%o2 ! cas is always fetching to dest. register
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| 220 | add %o1,%o2,%o0 ! OpenSSL expects the new value
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| 221 | retl
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| 222 | sra %o0,%g0,%o0 ! we return signed int, remember?
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| 223 | .size OPENSSL_atomic_add,.-OPENSSL_atomic_add
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| 224 |
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| 225 | .global _sparcv9_rdtick
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| 226 | .align 32
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| 227 | _sparcv9_rdtick:
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| 228 | subcc %g0,1,%o0
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| 229 | .word 0x91408000 !rd %ccr,%o0
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| 230 | cmp %o0,0x99
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| 231 | bne .notick
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| 232 | xor %o0,%o0,%o0
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| 233 | .word 0x91410000 !rd %tick,%o0
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| 234 | retl
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| 235 | .word 0x93323020 !srlx %o0,32,%o1
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| 236 | .notick:
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| 237 | retl
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| 238 | xor %o1,%o1,%o1
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| 239 | .type _sparcv9_rdtick,#function
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| 240 | .size _sparcv9_rdtick,.-_sparcv9_rdtick
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| 241 |
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| 242 | .global _sparcv9_vis1_probe
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| 243 | .align 8
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| 244 | _sparcv9_vis1_probe:
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| 245 | add %sp,BIAS+2,%o1
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| 246 | .word 0xc19a5a40 !ldda [%o1]ASI_FP16_P,%f0
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| 247 | retl
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| 248 | .word 0x81b00d80 !fxor %f0,%f0,%f0
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| 249 | .type _sparcv9_vis1_probe,#function
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| 250 | .size _sparcv9_vis1_probe,.-_sparcv9_vis1_probe
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| 251 |
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| 252 | ! Probe and instrument VIS1 instruction. Output is number of cycles it
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| 253 | ! takes to execute rdtick and pair of VIS1 instructions. US-Tx VIS unit
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| 254 | ! is slow (documented to be 6 cycles on T2) and the core is in-order
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| 255 | ! single-issue, it should be possible to distinguish Tx reliably...
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| 256 | ! Observed return values are:
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| 257 | !
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| 258 | ! UltraSPARC IIe 7
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| 259 | ! UltraSPARC III 7
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| 260 | ! UltraSPARC T1 24
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| 261 | ! SPARC T4 65(*)
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| 262 | !
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| 263 | ! (*) result has lesser to do with VIS instruction latencies, rdtick
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| 264 | ! appears that slow, but it does the trick in sense that FP and
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| 265 | ! VIS code paths are still slower than integer-only ones.
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| 266 | !
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| 267 | ! Numbers for T2 and SPARC64 V-VII are more than welcomed.
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| 268 | !
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| 269 | ! It would be possible to detect specifically US-T1 by instrumenting
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| 270 | ! fmul8ulx16, which is emulated on T1 and as such accounts for quite
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| 271 | ! a lot of %tick-s, couple of thousand on Linux...
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| 272 | .global _sparcv9_vis1_instrument
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| 273 | .align 8
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| 274 | _sparcv9_vis1_instrument:
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| 275 | .word 0x81b00d80 !fxor %f0,%f0,%f0
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| 276 | .word 0x85b08d82 !fxor %f2,%f2,%f2
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| 277 | .word 0x91410000 !rd %tick,%o0
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| 278 | .word 0x81b00d80 !fxor %f0,%f0,%f0
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| 279 | .word 0x85b08d82 !fxor %f2,%f2,%f2
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| 280 | .word 0x93410000 !rd %tick,%o1
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| 281 | .word 0x81b00d80 !fxor %f0,%f0,%f0
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| 282 | .word 0x85b08d82 !fxor %f2,%f2,%f2
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| 283 | .word 0x95410000 !rd %tick,%o2
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| 284 | .word 0x81b00d80 !fxor %f0,%f0,%f0
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| 285 | .word 0x85b08d82 !fxor %f2,%f2,%f2
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| 286 | .word 0x97410000 !rd %tick,%o3
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| 287 | .word 0x81b00d80 !fxor %f0,%f0,%f0
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| 288 | .word 0x85b08d82 !fxor %f2,%f2,%f2
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| 289 | .word 0x99410000 !rd %tick,%o4
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| 290 |
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| 291 | ! calculate intervals
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| 292 | sub %o1,%o0,%o0
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| 293 | sub %o2,%o1,%o1
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| 294 | sub %o3,%o2,%o2
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| 295 | sub %o4,%o3,%o3
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| 296 |
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| 297 | ! find minimum value
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| 298 | cmp %o0,%o1
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| 299 | .word 0x38680002 !bgu,a %xcc,.+8
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| 300 | mov %o1,%o0
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| 301 | cmp %o0,%o2
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| 302 | .word 0x38680002 !bgu,a %xcc,.+8
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| 303 | mov %o2,%o0
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| 304 | cmp %o0,%o3
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| 305 | .word 0x38680002 !bgu,a %xcc,.+8
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| 306 | mov %o3,%o0
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| 307 |
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| 308 | retl
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| 309 | nop
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| 310 | .type _sparcv9_vis1_instrument,#function
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| 311 | .size _sparcv9_vis1_instrument,.-_sparcv9_vis1_instrument
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| 312 |
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| 313 | .global _sparcv9_vis2_probe
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| 314 | .align 8
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| 315 | _sparcv9_vis2_probe:
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| 316 | retl
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| 317 | .word 0x81b00980 !bshuffle %f0,%f0,%f0
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| 318 | .type _sparcv9_vis2_probe,#function
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| 319 | .size _sparcv9_vis2_probe,.-_sparcv9_vis2_probe
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| 320 |
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| 321 | .global _sparcv9_fmadd_probe
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| 322 | .align 8
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| 323 | _sparcv9_fmadd_probe:
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| 324 | .word 0x81b00d80 !fxor %f0,%f0,%f0
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| 325 | .word 0x85b08d82 !fxor %f2,%f2,%f2
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| 326 | retl
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| 327 | .word 0x81b80440 !fmaddd %f0,%f0,%f2,%f0
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| 328 | .type _sparcv9_fmadd_probe,#function
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| 329 | .size _sparcv9_fmadd_probe,.-_sparcv9_fmadd_probe
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| 330 |
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| 331 | .global _sparcv9_rdcfr
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| 332 | .align 8
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| 333 | _sparcv9_rdcfr:
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| 334 | retl
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| 335 | .word 0x91468000 !rd %asr26,%o0
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| 336 | .type _sparcv9_rdcfr,#function
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| 337 | .size _sparcv9_rdcfr,.-_sparcv9_rdcfr
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| 338 |
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| 339 | .global _sparcv9_vis3_probe
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| 340 | .align 8
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| 341 | _sparcv9_vis3_probe:
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| 342 | retl
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| 343 | .word 0x81b022a0 !xmulx %g0,%g0,%g0
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| 344 | .type _sparcv9_vis3_probe,#function
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| 345 | .size _sparcv9_vis3_probe,.-_sparcv9_vis3_probe
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| 346 |
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| 347 | .global _sparcv9_random
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| 348 | .align 8
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| 349 | _sparcv9_random:
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| 350 | retl
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| 351 | .word 0x91b002a0 !random %o0
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| 352 | .type _sparcv9_random,#function
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| 353 | .size _sparcv9_random,.-_sparcv9_vis3_probe
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| 354 |
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| 355 | .global _sparcv9_fjaesx_probe
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| 356 | .align 8
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| 357 | _sparcv9_fjaesx_probe:
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| 358 | .word 0x81b09206 !faesencx %f2,%f6,%f0
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| 359 | retl
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| 360 | nop
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| 361 | .size _sparcv9_fjaesx_probe,.-_sparcv9_fjaesx_probe
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| 362 |
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| 363 | .global OPENSSL_cleanse
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| 364 | .align 32
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| 365 | OPENSSL_cleanse:
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| 366 | cmp %o1,14
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| 367 | nop
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| 368 | #ifdef ABI64
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| 369 | bgu %xcc,.Lot
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| 370 | #else
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| 371 | bgu .Lot
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| 372 | #endif
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| 373 | cmp %o1,0
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| 374 | bne .Little
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| 375 | nop
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| 376 | retl
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| 377 | nop
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| 378 |
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| 379 | .Little:
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| 380 | stb %g0,[%o0]
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| 381 | subcc %o1,1,%o1
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| 382 | bnz .Little
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| 383 | add %o0,1,%o0
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| 384 | retl
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| 385 | nop
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| 386 | .align 32
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| 387 | .Lot:
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| 388 | #ifndef ABI64
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| 389 | subcc %g0,1,%g1
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| 390 | ! see above for explanation
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| 391 | .word 0x83408000 !rd %ccr,%g1
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| 392 | cmp %g1,0x99
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| 393 | bne .v8lot
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| 394 | nop
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| 395 | #endif
|
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| 396 |
|
|---|
| 397 | .v9lot: andcc %o0,7,%g0
|
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| 398 | bz .v9aligned
|
|---|
| 399 | nop
|
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| 400 | stb %g0,[%o0]
|
|---|
| 401 | sub %o1,1,%o1
|
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| 402 | ba .v9lot
|
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| 403 | add %o0,1,%o0
|
|---|
| 404 | .align 16,0x01000000
|
|---|
| 405 | .v9aligned:
|
|---|
| 406 | .word 0xc0720000 !stx %g0,[%o0]
|
|---|
| 407 | sub %o1,8,%o1
|
|---|
| 408 | andcc %o1,-8,%g0
|
|---|
| 409 | #ifdef ABI64
|
|---|
| 410 | .word 0x126ffffd !bnz %xcc,.v9aligned
|
|---|
| 411 | #else
|
|---|
| 412 | .word 0x124ffffd !bnz %icc,.v9aligned
|
|---|
| 413 | #endif
|
|---|
| 414 | add %o0,8,%o0
|
|---|
| 415 |
|
|---|
| 416 | cmp %o1,0
|
|---|
| 417 | bne .Little
|
|---|
| 418 | nop
|
|---|
| 419 | retl
|
|---|
| 420 | nop
|
|---|
| 421 | #ifndef ABI64
|
|---|
| 422 | .v8lot: andcc %o0,3,%g0
|
|---|
| 423 | bz .v8aligned
|
|---|
| 424 | nop
|
|---|
| 425 | stb %g0,[%o0]
|
|---|
| 426 | sub %o1,1,%o1
|
|---|
| 427 | ba .v8lot
|
|---|
| 428 | add %o0,1,%o0
|
|---|
| 429 | nop
|
|---|
| 430 | .v8aligned:
|
|---|
| 431 | st %g0,[%o0]
|
|---|
| 432 | sub %o1,4,%o1
|
|---|
| 433 | andcc %o1,-4,%g0
|
|---|
| 434 | bnz .v8aligned
|
|---|
| 435 | add %o0,4,%o0
|
|---|
| 436 |
|
|---|
| 437 | cmp %o1,0
|
|---|
| 438 | bne .Little
|
|---|
| 439 | nop
|
|---|
| 440 | retl
|
|---|
| 441 | nop
|
|---|
| 442 | #endif
|
|---|
| 443 | .type OPENSSL_cleanse,#function
|
|---|
| 444 | .size OPENSSL_cleanse,.-OPENSSL_cleanse
|
|---|
| 445 |
|
|---|
| 446 | .global CRYPTO_memcmp
|
|---|
| 447 | .align 16
|
|---|
| 448 | CRYPTO_memcmp:
|
|---|
| 449 | cmp %o2,0
|
|---|
| 450 | #ifdef ABI64
|
|---|
| 451 | beq,pn %xcc,.Lno_data
|
|---|
| 452 | #else
|
|---|
| 453 | beq .Lno_data
|
|---|
| 454 | #endif
|
|---|
| 455 | xor %g1,%g1,%g1
|
|---|
| 456 | nop
|
|---|
| 457 |
|
|---|
| 458 | .Loop_cmp:
|
|---|
| 459 | ldub [%o0],%o3
|
|---|
| 460 | add %o0,1,%o0
|
|---|
| 461 | ldub [%o1],%o4
|
|---|
| 462 | add %o1,1,%o1
|
|---|
| 463 | subcc %o2,1,%o2
|
|---|
| 464 | xor %o3,%o4,%o4
|
|---|
| 465 | #ifdef ABI64
|
|---|
| 466 | bnz %xcc,.Loop_cmp
|
|---|
| 467 | #else
|
|---|
| 468 | bnz .Loop_cmp
|
|---|
| 469 | #endif
|
|---|
| 470 | or %o4,%g1,%g1
|
|---|
| 471 |
|
|---|
| 472 | sub %g0,%g1,%g1
|
|---|
| 473 | srl %g1,31,%g1
|
|---|
| 474 | .Lno_data:
|
|---|
| 475 | retl
|
|---|
| 476 | mov %g1,%o0
|
|---|
| 477 | .type CRYPTO_memcmp,#function
|
|---|
| 478 | .size CRYPTO_memcmp,.-CRYPTO_memcmp
|
|---|
| 479 |
|
|---|
| 480 | .global _sparcv9_vis1_instrument_bus
|
|---|
| 481 | .align 8
|
|---|
| 482 | _sparcv9_vis1_instrument_bus:
|
|---|
| 483 | mov %o1,%o3 ! save cnt
|
|---|
| 484 | .word 0x99410000 !rd %tick,%o4 ! tick
|
|---|
| 485 | mov %o4,%o5 ! lasttick = tick
|
|---|
| 486 | set 0,%g4 ! diff
|
|---|
| 487 |
|
|---|
| 488 | andn %o0,63,%g1
|
|---|
| 489 | .word 0xc1985e00 !ldda [%g1]0xf0,%f0 ! block load
|
|---|
| 490 | .word 0x8143e040 !membar #Sync
|
|---|
| 491 | .word 0xc1b85c00 !stda %f0,[%g1]0xe0 ! block store and commit
|
|---|
| 492 | .word 0x8143e040 !membar #Sync
|
|---|
| 493 | ld [%o0],%o4
|
|---|
| 494 | add %o4,%g4,%g4
|
|---|
| 495 | .word 0xc9e2100c !cas [%o0],%o4,%g4
|
|---|
| 496 |
|
|---|
| 497 | .Loop: .word 0x99410000 !rd %tick,%o4
|
|---|
| 498 | sub %o4,%o5,%g4 ! diff=tick-lasttick
|
|---|
| 499 | mov %o4,%o5 ! lasttick=tick
|
|---|
| 500 |
|
|---|
| 501 | andn %o0,63,%g1
|
|---|
| 502 | .word 0xc1985e00 !ldda [%g1]0xf0,%f0 ! block load
|
|---|
| 503 | .word 0x8143e040 !membar #Sync
|
|---|
| 504 | .word 0xc1b85c00 !stda %f0,[%g1]0xe0 ! block store and commit
|
|---|
| 505 | .word 0x8143e040 !membar #Sync
|
|---|
| 506 | ld [%o0],%o4
|
|---|
| 507 | add %o4,%g4,%g4
|
|---|
| 508 | .word 0xc9e2100c !cas [%o0],%o4,%g4
|
|---|
| 509 | subcc %o1,1,%o1 ! --$cnt
|
|---|
| 510 | bnz .Loop
|
|---|
| 511 | add %o0,4,%o0 ! ++$out
|
|---|
| 512 |
|
|---|
| 513 | retl
|
|---|
| 514 | mov %o3,%o0
|
|---|
| 515 | .type _sparcv9_vis1_instrument_bus,#function
|
|---|
| 516 | .size _sparcv9_vis1_instrument_bus,.-_sparcv9_vis1_instrument_bus
|
|---|
| 517 |
|
|---|
| 518 | .global _sparcv9_vis1_instrument_bus2
|
|---|
| 519 | .align 8
|
|---|
| 520 | _sparcv9_vis1_instrument_bus2:
|
|---|
| 521 | mov %o1,%o3 ! save cnt
|
|---|
| 522 | sll %o1,2,%o1 ! cnt*=4
|
|---|
| 523 |
|
|---|
| 524 | .word 0x99410000 !rd %tick,%o4 ! tick
|
|---|
| 525 | mov %o4,%o5 ! lasttick = tick
|
|---|
| 526 | set 0,%g4 ! diff
|
|---|
| 527 |
|
|---|
| 528 | andn %o0,63,%g1
|
|---|
| 529 | .word 0xc1985e00 !ldda [%g1]0xf0,%f0 ! block load
|
|---|
| 530 | .word 0x8143e040 !membar #Sync
|
|---|
| 531 | .word 0xc1b85c00 !stda %f0,[%g1]0xe0 ! block store and commit
|
|---|
| 532 | .word 0x8143e040 !membar #Sync
|
|---|
| 533 | ld [%o0],%o4
|
|---|
| 534 | add %o4,%g4,%g4
|
|---|
| 535 | .word 0xc9e2100c !cas [%o0],%o4,%g4
|
|---|
| 536 |
|
|---|
| 537 | .word 0x99410000 !rd %tick,%o4 ! tick
|
|---|
| 538 | sub %o4,%o5,%g4 ! diff=tick-lasttick
|
|---|
| 539 | mov %o4,%o5 ! lasttick=tick
|
|---|
| 540 | mov %g4,%g5 ! lastdiff=diff
|
|---|
| 541 | .Loop2:
|
|---|
| 542 | andn %o0,63,%g1
|
|---|
| 543 | .word 0xc1985e00 !ldda [%g1]0xf0,%f0 ! block load
|
|---|
| 544 | .word 0x8143e040 !membar #Sync
|
|---|
| 545 | .word 0xc1b85c00 !stda %f0,[%g1]0xe0 ! block store and commit
|
|---|
| 546 | .word 0x8143e040 !membar #Sync
|
|---|
| 547 | ld [%o0],%o4
|
|---|
| 548 | add %o4,%g4,%g4
|
|---|
| 549 | .word 0xc9e2100c !cas [%o0],%o4,%g4
|
|---|
| 550 |
|
|---|
| 551 | subcc %o2,1,%o2 ! --max
|
|---|
| 552 | bz .Ldone2
|
|---|
| 553 | nop
|
|---|
| 554 |
|
|---|
| 555 | .word 0x99410000 !rd %tick,%o4 ! tick
|
|---|
| 556 | sub %o4,%o5,%g4 ! diff=tick-lasttick
|
|---|
| 557 | mov %o4,%o5 ! lasttick=tick
|
|---|
| 558 | cmp %g4,%g5
|
|---|
| 559 | mov %g4,%g5 ! lastdiff=diff
|
|---|
| 560 |
|
|---|
| 561 | .word 0x83408000 !rd %ccr,%g1
|
|---|
| 562 | and %g1,4,%g1 ! isolate zero flag
|
|---|
| 563 | xor %g1,4,%g1 ! flip zero flag
|
|---|
| 564 |
|
|---|
| 565 | subcc %o1,%g1,%o1 ! conditional --$cnt
|
|---|
| 566 | bnz .Loop2
|
|---|
| 567 | add %o0,%g1,%o0 ! conditional ++$out
|
|---|
| 568 |
|
|---|
| 569 | .Ldone2:
|
|---|
| 570 | srl %o1,2,%o1
|
|---|
| 571 | retl
|
|---|
| 572 | sub %o3,%o1,%o0
|
|---|
| 573 | .type _sparcv9_vis1_instrument_bus2,#function
|
|---|
| 574 | .size _sparcv9_vis1_instrument_bus2,.-_sparcv9_vis1_instrument_bus2
|
|---|
| 575 |
|
|---|
| 576 | .section ".init",#alloc,#execinstr
|
|---|
| 577 | call OPENSSL_cpuid_setup
|
|---|
| 578 | nop
|
|---|
