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| ! Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
| !
| ! Licensed under the OpenSSL license (the "License"). You may not use
| ! this file except in compliance with the License. You can obtain a copy
| ! in the file LICENSE in the source distribution or at
| ! https://www.openssl.org/source/license.html
|
| #if defined(__SUNPRO_C) && defined(__sparcv9)
| # define ABI64 /* They've said -xarch=v9 at command line */
| #elif defined(__GNUC__) && defined(__arch64__)
| # define ABI64 /* They've said -m64 at command line */
| #endif
|
| #ifdef ABI64
| .register %g2,#scratch
| .register %g3,#scratch
| # define FRAME -192
| # define BIAS 2047
| #else
| # define FRAME -96
| # define BIAS 0
| #endif
|
| .text
| .align 32
| .global OPENSSL_wipe_cpu
| .type OPENSSL_wipe_cpu,#function
| ! Keep in mind that this does not excuse us from wiping the stack!
| ! This routine wipes registers, but not the backing store [which
| ! resides on the stack, toward lower addresses]. To facilitate for
| ! stack wiping I return pointer to the top of stack of the *caller*.
| OPENSSL_wipe_cpu:
| save %sp,FRAME,%sp
| nop
| #ifdef __sun
| #include <sys/trap.h>
| ta ST_CLEAN_WINDOWS
| #else
| call .walk.reg.wins
| #endif
| nop
| call .PIC.zero.up
| mov .zero-(.-4),%o0
| ld [%o0],%f0
| ld [%o0],%f1
|
| subcc %g0,1,%o0
| ! Following is V9 "rd %ccr,%o0" instruction. However! V8
| ! specification says that it ("rd %asr2,%o0" in V8 terms) does
| ! not cause illegal_instruction trap. It therefore can be used
| ! to determine if the CPU the code is executing on is V8- or
| ! V9-compliant, as V9 returns a distinct value of 0x99,
| ! "negative" and "borrow" bits set in both %icc and %xcc.
| .word 0x91408000 !rd %ccr,%o0
| cmp %o0,0x99
| bne .v8
| nop
| ! Even though we do not use %fp register bank,
| ! we wipe it as memcpy might have used it...
| .word 0xbfa00040 !fmovd %f0,%f62
| .word 0xbba00040 !...
| .word 0xb7a00040
| .word 0xb3a00040
| .word 0xafa00040
| .word 0xaba00040
| .word 0xa7a00040
| .word 0xa3a00040
| .word 0x9fa00040
| .word 0x9ba00040
| .word 0x97a00040
| .word 0x93a00040
| .word 0x8fa00040
| .word 0x8ba00040
| .word 0x87a00040
| .word 0x83a00040 !fmovd %f0,%f32
| .v8: fmovs %f1,%f31
| clr %o0
| fmovs %f0,%f30
| clr %o1
| fmovs %f1,%f29
| clr %o2
| fmovs %f0,%f28
| clr %o3
| fmovs %f1,%f27
| clr %o4
| fmovs %f0,%f26
| clr %o5
| fmovs %f1,%f25
| clr %o7
| fmovs %f0,%f24
| clr %l0
| fmovs %f1,%f23
| clr %l1
| fmovs %f0,%f22
| clr %l2
| fmovs %f1,%f21
| clr %l3
| fmovs %f0,%f20
| clr %l4
| fmovs %f1,%f19
| clr %l5
| fmovs %f0,%f18
| clr %l6
| fmovs %f1,%f17
| clr %l7
| fmovs %f0,%f16
| clr %i0
| fmovs %f1,%f15
| clr %i1
| fmovs %f0,%f14
| clr %i2
| fmovs %f1,%f13
| clr %i3
| fmovs %f0,%f12
| clr %i4
| fmovs %f1,%f11
| clr %i5
| fmovs %f0,%f10
| clr %g1
| fmovs %f1,%f9
| clr %g2
| fmovs %f0,%f8
| clr %g3
| fmovs %f1,%f7
| clr %g4
| fmovs %f0,%f6
| clr %g5
| fmovs %f1,%f5
| fmovs %f0,%f4
| fmovs %f1,%f3
| fmovs %f0,%f2
|
| add %fp,BIAS,%i0 ! return pointer to caller“s top of stack
|
| ret
| restore
|
| .zero: .long 0x0,0x0
| .PIC.zero.up:
| retl
| add %o0,%o7,%o0
| #ifdef DEBUG
| .global walk_reg_wins
| .type walk_reg_wins,#function
| walk_reg_wins:
| #endif
| .walk.reg.wins:
| save %sp,FRAME,%sp
| cmp %i7,%o7
| be 2f
| clr %o0
| cmp %o7,0 ! compiler never cleans %o7...
| be 1f ! could have been a leaf function...
| clr %o1
| call .walk.reg.wins
| nop
| 1: clr %o2
| clr %o3
| clr %o4
| clr %o5
| clr %o7
| clr %l0
| clr %l1
| clr %l2
| clr %l3
| clr %l4
| clr %l5
| clr %l6
| clr %l7
| add %o0,1,%i0 ! used for debugging
| 2: ret
| restore
| .size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
|
| .global OPENSSL_atomic_add
| .type OPENSSL_atomic_add,#function
| .align 32
| OPENSSL_atomic_add:
| #ifndef ABI64
| subcc %g0,1,%o2
| .word 0x95408000 !rd %ccr,%o2, see comment above
| cmp %o2,0x99
| be .v9
| nop
| save %sp,FRAME,%sp
| ba .enter
| nop
| #ifdef __sun
| ! Note that you do not have to link with libthread to call thr_yield,
| ! as libc provides a stub, which is overloaded the moment you link
| ! with *either* libpthread or libthread...
| #define YIELD_CPU thr_yield
| #else
| ! applies at least to Linux and FreeBSD... Feedback expected...
| #define YIELD_CPU sched_yield
| #endif
| .spin: call YIELD_CPU
| nop
| .enter: ld [%i0],%i2
| cmp %i2,-4096
| be .spin
| mov -1,%i2
| swap [%i0],%i2
| cmp %i2,-1
| be .spin
| add %i2,%i1,%i2
| stbar
| st %i2,[%i0]
| sra %i2,%g0,%i0
| ret
| restore
| .v9:
| #endif
| ld [%o0],%o2
| 1: add %o1,%o2,%o3
| .word 0xd7e2100a !cas [%o0],%o2,%o3, compare [%o0] with %o2 and swap %o3
| cmp %o2,%o3
| bne 1b
| mov %o3,%o2 ! cas is always fetching to dest. register
| add %o1,%o2,%o0 ! OpenSSL expects the new value
| retl
| sra %o0,%g0,%o0 ! we return signed int, remember?
| .size OPENSSL_atomic_add,.-OPENSSL_atomic_add
|
| .global _sparcv9_rdtick
| .align 32
| _sparcv9_rdtick:
| subcc %g0,1,%o0
| .word 0x91408000 !rd %ccr,%o0
| cmp %o0,0x99
| bne .notick
| xor %o0,%o0,%o0
| .word 0x91410000 !rd %tick,%o0
| retl
| .word 0x93323020 !srlx %o0,32,%o1
| .notick:
| retl
| xor %o1,%o1,%o1
| .type _sparcv9_rdtick,#function
| .size _sparcv9_rdtick,.-_sparcv9_rdtick
|
| .global _sparcv9_vis1_probe
| .align 8
| _sparcv9_vis1_probe:
| add %sp,BIAS+2,%o1
| .word 0xc19a5a40 !ldda [%o1]ASI_FP16_P,%f0
| retl
| .word 0x81b00d80 !fxor %f0,%f0,%f0
| .type _sparcv9_vis1_probe,#function
| .size _sparcv9_vis1_probe,.-_sparcv9_vis1_probe
|
| ! Probe and instrument VIS1 instruction. Output is number of cycles it
| ! takes to execute rdtick and pair of VIS1 instructions. US-Tx VIS unit
| ! is slow (documented to be 6 cycles on T2) and the core is in-order
| ! single-issue, it should be possible to distinguish Tx reliably...
| ! Observed return values are:
| !
| ! UltraSPARC IIe 7
| ! UltraSPARC III 7
| ! UltraSPARC T1 24
| ! SPARC T4 65(*)
| !
| ! (*) result has lesser to do with VIS instruction latencies, rdtick
| ! appears that slow, but it does the trick in sense that FP and
| ! VIS code paths are still slower than integer-only ones.
| !
| ! Numbers for T2 and SPARC64 V-VII are more than welcomed.
| !
| ! It would be possible to detect specifically US-T1 by instrumenting
| ! fmul8ulx16, which is emulated on T1 and as such accounts for quite
| ! a lot of %tick-s, couple of thousand on Linux...
| .global _sparcv9_vis1_instrument
| .align 8
| _sparcv9_vis1_instrument:
| .word 0x81b00d80 !fxor %f0,%f0,%f0
| .word 0x85b08d82 !fxor %f2,%f2,%f2
| .word 0x91410000 !rd %tick,%o0
| .word 0x81b00d80 !fxor %f0,%f0,%f0
| .word 0x85b08d82 !fxor %f2,%f2,%f2
| .word 0x93410000 !rd %tick,%o1
| .word 0x81b00d80 !fxor %f0,%f0,%f0
| .word 0x85b08d82 !fxor %f2,%f2,%f2
| .word 0x95410000 !rd %tick,%o2
| .word 0x81b00d80 !fxor %f0,%f0,%f0
| .word 0x85b08d82 !fxor %f2,%f2,%f2
| .word 0x97410000 !rd %tick,%o3
| .word 0x81b00d80 !fxor %f0,%f0,%f0
| .word 0x85b08d82 !fxor %f2,%f2,%f2
| .word 0x99410000 !rd %tick,%o4
|
| ! calculate intervals
| sub %o1,%o0,%o0
| sub %o2,%o1,%o1
| sub %o3,%o2,%o2
| sub %o4,%o3,%o3
|
| ! find minimum value
| cmp %o0,%o1
| .word 0x38680002 !bgu,a %xcc,.+8
| mov %o1,%o0
| cmp %o0,%o2
| .word 0x38680002 !bgu,a %xcc,.+8
| mov %o2,%o0
| cmp %o0,%o3
| .word 0x38680002 !bgu,a %xcc,.+8
| mov %o3,%o0
|
| retl
| nop
| .type _sparcv9_vis1_instrument,#function
| .size _sparcv9_vis1_instrument,.-_sparcv9_vis1_instrument
|
| .global _sparcv9_vis2_probe
| .align 8
| _sparcv9_vis2_probe:
| retl
| .word 0x81b00980 !bshuffle %f0,%f0,%f0
| .type _sparcv9_vis2_probe,#function
| .size _sparcv9_vis2_probe,.-_sparcv9_vis2_probe
|
| .global _sparcv9_fmadd_probe
| .align 8
| _sparcv9_fmadd_probe:
| .word 0x81b00d80 !fxor %f0,%f0,%f0
| .word 0x85b08d82 !fxor %f2,%f2,%f2
| retl
| .word 0x81b80440 !fmaddd %f0,%f0,%f2,%f0
| .type _sparcv9_fmadd_probe,#function
| .size _sparcv9_fmadd_probe,.-_sparcv9_fmadd_probe
|
| .global _sparcv9_rdcfr
| .align 8
| _sparcv9_rdcfr:
| retl
| .word 0x91468000 !rd %asr26,%o0
| .type _sparcv9_rdcfr,#function
| .size _sparcv9_rdcfr,.-_sparcv9_rdcfr
|
| .global _sparcv9_vis3_probe
| .align 8
| _sparcv9_vis3_probe:
| retl
| .word 0x81b022a0 !xmulx %g0,%g0,%g0
| .type _sparcv9_vis3_probe,#function
| .size _sparcv9_vis3_probe,.-_sparcv9_vis3_probe
|
| .global _sparcv9_random
| .align 8
| _sparcv9_random:
| retl
| .word 0x91b002a0 !random %o0
| .type _sparcv9_random,#function
| .size _sparcv9_random,.-_sparcv9_vis3_probe
|
| .global _sparcv9_fjaesx_probe
| .align 8
| _sparcv9_fjaesx_probe:
| .word 0x81b09206 !faesencx %f2,%f6,%f0
| retl
| nop
| .size _sparcv9_fjaesx_probe,.-_sparcv9_fjaesx_probe
|
| .global OPENSSL_cleanse
| .align 32
| OPENSSL_cleanse:
| cmp %o1,14
| nop
| #ifdef ABI64
| bgu %xcc,.Lot
| #else
| bgu .Lot
| #endif
| cmp %o1,0
| bne .Little
| nop
| retl
| nop
|
| .Little:
| stb %g0,[%o0]
| subcc %o1,1,%o1
| bnz .Little
| add %o0,1,%o0
| retl
| nop
| .align 32
| .Lot:
| #ifndef ABI64
| subcc %g0,1,%g1
| ! see above for explanation
| .word 0x83408000 !rd %ccr,%g1
| cmp %g1,0x99
| bne .v8lot
| nop
| #endif
|
| .v9lot: andcc %o0,7,%g0
| bz .v9aligned
| nop
| stb %g0,[%o0]
| sub %o1,1,%o1
| ba .v9lot
| add %o0,1,%o0
| .align 16,0x01000000
| .v9aligned:
| .word 0xc0720000 !stx %g0,[%o0]
| sub %o1,8,%o1
| andcc %o1,-8,%g0
| #ifdef ABI64
| .word 0x126ffffd !bnz %xcc,.v9aligned
| #else
| .word 0x124ffffd !bnz %icc,.v9aligned
| #endif
| add %o0,8,%o0
|
| cmp %o1,0
| bne .Little
| nop
| retl
| nop
| #ifndef ABI64
| .v8lot: andcc %o0,3,%g0
| bz .v8aligned
| nop
| stb %g0,[%o0]
| sub %o1,1,%o1
| ba .v8lot
| add %o0,1,%o0
| nop
| .v8aligned:
| st %g0,[%o0]
| sub %o1,4,%o1
| andcc %o1,-4,%g0
| bnz .v8aligned
| add %o0,4,%o0
|
| cmp %o1,0
| bne .Little
| nop
| retl
| nop
| #endif
| .type OPENSSL_cleanse,#function
| .size OPENSSL_cleanse,.-OPENSSL_cleanse
|
| .global CRYPTO_memcmp
| .align 16
| CRYPTO_memcmp:
| cmp %o2,0
| #ifdef ABI64
| beq,pn %xcc,.Lno_data
| #else
| beq .Lno_data
| #endif
| xor %g1,%g1,%g1
| nop
|
| .Loop_cmp:
| ldub [%o0],%o3
| add %o0,1,%o0
| ldub [%o1],%o4
| add %o1,1,%o1
| subcc %o2,1,%o2
| xor %o3,%o4,%o4
| #ifdef ABI64
| bnz %xcc,.Loop_cmp
| #else
| bnz .Loop_cmp
| #endif
| or %o4,%g1,%g1
|
| sub %g0,%g1,%g1
| srl %g1,31,%g1
| .Lno_data:
| retl
| mov %g1,%o0
| .type CRYPTO_memcmp,#function
| .size CRYPTO_memcmp,.-CRYPTO_memcmp
|
| .global _sparcv9_vis1_instrument_bus
| .align 8
| _sparcv9_vis1_instrument_bus:
| mov %o1,%o3 ! save cnt
| .word 0x99410000 !rd %tick,%o4 ! tick
| mov %o4,%o5 ! lasttick = tick
| set 0,%g4 ! diff
|
| andn %o0,63,%g1
| .word 0xc1985e00 !ldda [%g1]0xf0,%f0 ! block load
| .word 0x8143e040 !membar #Sync
| .word 0xc1b85c00 !stda %f0,[%g1]0xe0 ! block store and commit
| .word 0x8143e040 !membar #Sync
| ld [%o0],%o4
| add %o4,%g4,%g4
| .word 0xc9e2100c !cas [%o0],%o4,%g4
|
| .Loop: .word 0x99410000 !rd %tick,%o4
| sub %o4,%o5,%g4 ! diff=tick-lasttick
| mov %o4,%o5 ! lasttick=tick
|
| andn %o0,63,%g1
| .word 0xc1985e00 !ldda [%g1]0xf0,%f0 ! block load
| .word 0x8143e040 !membar #Sync
| .word 0xc1b85c00 !stda %f0,[%g1]0xe0 ! block store and commit
| .word 0x8143e040 !membar #Sync
| ld [%o0],%o4
| add %o4,%g4,%g4
| .word 0xc9e2100c !cas [%o0],%o4,%g4
| subcc %o1,1,%o1 ! --$cnt
| bnz .Loop
| add %o0,4,%o0 ! ++$out
|
| retl
| mov %o3,%o0
| .type _sparcv9_vis1_instrument_bus,#function
| .size _sparcv9_vis1_instrument_bus,.-_sparcv9_vis1_instrument_bus
|
| .global _sparcv9_vis1_instrument_bus2
| .align 8
| _sparcv9_vis1_instrument_bus2:
| mov %o1,%o3 ! save cnt
| sll %o1,2,%o1 ! cnt*=4
|
| .word 0x99410000 !rd %tick,%o4 ! tick
| mov %o4,%o5 ! lasttick = tick
| set 0,%g4 ! diff
|
| andn %o0,63,%g1
| .word 0xc1985e00 !ldda [%g1]0xf0,%f0 ! block load
| .word 0x8143e040 !membar #Sync
| .word 0xc1b85c00 !stda %f0,[%g1]0xe0 ! block store and commit
| .word 0x8143e040 !membar #Sync
| ld [%o0],%o4
| add %o4,%g4,%g4
| .word 0xc9e2100c !cas [%o0],%o4,%g4
|
| .word 0x99410000 !rd %tick,%o4 ! tick
| sub %o4,%o5,%g4 ! diff=tick-lasttick
| mov %o4,%o5 ! lasttick=tick
| mov %g4,%g5 ! lastdiff=diff
| .Loop2:
| andn %o0,63,%g1
| .word 0xc1985e00 !ldda [%g1]0xf0,%f0 ! block load
| .word 0x8143e040 !membar #Sync
| .word 0xc1b85c00 !stda %f0,[%g1]0xe0 ! block store and commit
| .word 0x8143e040 !membar #Sync
| ld [%o0],%o4
| add %o4,%g4,%g4
| .word 0xc9e2100c !cas [%o0],%o4,%g4
|
| subcc %o2,1,%o2 ! --max
| bz .Ldone2
| nop
|
| .word 0x99410000 !rd %tick,%o4 ! tick
| sub %o4,%o5,%g4 ! diff=tick-lasttick
| mov %o4,%o5 ! lasttick=tick
| cmp %g4,%g5
| mov %g4,%g5 ! lastdiff=diff
|
| .word 0x83408000 !rd %ccr,%g1
| and %g1,4,%g1 ! isolate zero flag
| xor %g1,4,%g1 ! flip zero flag
|
| subcc %o1,%g1,%o1 ! conditional --$cnt
| bnz .Loop2
| add %o0,%g1,%o0 ! conditional ++$out
|
| .Ldone2:
| srl %o1,2,%o1
| retl
| sub %o3,%o1,%o0
| .type _sparcv9_vis1_instrument_bus2,#function
| .size _sparcv9_vis1_instrument_bus2,.-_sparcv9_vis1_instrument_bus2
|
| .section ".init",#alloc,#execinstr
| call OPENSSL_cpuid_setup
| nop
|
|